HomeMy WebLinkAboutReso 66-21_2020 UWMP_FINALURBAN WATER
2020
MANAGEMENT PLAN
CITY OF MORRO BAY
PUBLIC REVIEW DRAFT | SEPTEMBER 2021
CITY OF MORRO BAY
2020 Urban Water
Management Plan
SEPTEMBER 2021
Prepared by Water Systems Consulting, Inc.
Table of Contents
City of Morro Bay i 2020 Urban Water Management Plan
Table of Contents
List of Figures .................................................................................................................................................... iv
List of Tables ...................................................................................................................................................... v
Acronyms & Abbreviations ............................................................................................................................. vi
1. Introduction and Lay Description ......................................................................................................... 1-1
1.1 Urban Water Management Plan Purpose and Overview ....................................................... 1-2
1.2 UWMP Organization ...................................................................................................................... 1-3
1.3 UWMP in Relation to Other Efforts.............................................................................................. 1-4
1.4 UWMPs and Grant or Loan Eligibility ......................................................................................... 1-5
1.5 Demonstration of Consistency with the Delta Plan for Participants in Covered Actions ..... 1-5
2. Plan Preparation ..................................................................................................................................... 2-1
2.1 Plan Preparation ............................................................................................................................. 2-2
2.2 Basis for Preparing a Plan ............................................................................................................ 2-2
2.3 Coordination and Outreach .......................................................................................................... 2-2
3. System Description .................................................................................................................................. 3-1
3.1 General Description & Service Area Boundary Map ............................................................... 3-2
3.2 Service Area Climate ...................................................................................................................... 3-4
3.3 Service Area Population and Demographics ............................................................................. 3-5
3.3.1 Service Area Population ......................................................................................................... 3-5
3.3.2 Other Social, Economic, and Demographic Factors ............................................................ 3-6
3.4 Land Uses within Service Area ...................................................................................................... 3-6
4. Water Use Characterization ................................................................................................................ 4-1
4.1 Non-Potable Versus Potable Water Use .................................................................................... 4-2
4.2 Past, Current, and Projected Water Use by Sector .................................................................. 4-2
4.2.1 Water Use Sectors Listed in Water Code ........................................................................... 4-2
4.1.1 Past and Current Water Use .................................................................................................. 4-2
4.1.2 Distribution System Losses ....................................................................................................... 4-4
4.1.3 Projected Water Use ............................................................................................................... 4-4
4.1.4 Characteristic Five-Year Water Use ..................................................................................... 4-8
4.3 Water Use for Lower Income Households ................................................................................... 4-8
4.4 Climate Change Considerations ................................................................................................... 4-9
5. SBX7-7 Baseline, Targets, and 2020 Compliance ........................................................................... 5-1
5.1 SBX7-7 Forms and Tables.............................................................................................................. 5-2
5.2 2020 Compliance Daily Per-Capita Water Use (GPCD) ....................................................... 5-2
6. Water Supply Characterization .......................................................................................................... 6-1
6.1 Water Supply Analysis Overview................................................................................................ 6-2
6.2 UWMP Water Supply Characterization..................................................................................... 6-2
Table of Contents
City of Morro Bay ii 2020 Urban Water Management Plan
6.2.1 Purchased or Imported Water ............................................................................................... 6-2
6.2.2 Groundwater ............................................................................................................................. 6-4
6.2.3 Surface Water .......................................................................................................................... 6-7
6.2.4 Stormwater ................................................................................................................................ 6-7
6.2.5 Wastewater and Recycled Water..................................................................................... 6-77
6.2.6 Desalinated Water Opportunities ..................................................................................... 6-10
6.2.7 Water Exchanges and Transfers ........................................................................................ 6-10
6.2.8 Future Water Projects ........................................................................................................... 6-10
6.2.9 Climate Change Effects ........................................................................................................ 6-11
6.2.10 Summary of Existing and Planned Sources of Water .................................................. 6-11
6.3 Energy Intensity ............................................................................................................................. 6-13
7. Water Service Reliability and Drought Risk Assessment ................................................................. 7-1
7.1 Water Service Reliability Assessment ......................................................................................... 7-2
7.1.1 Constraints on Water Sources ................................................................................................ 7-2
7.1.2 Year Type Characterization ................................................................................................... 7-4
7.1.3 Water Service Reliability ....................................................................................................... 7-6
7.1.4 Descriptions of Management Tools and Options ................................................................ 7-9
7.2 Drought Risk Assessment ................................................................................................................. 7-9
7.2.1 Data, Methods, and Basis for Water Shortage Condition ............................................ 7-10
7.2.2 DRA Water Source Reliability ............................................................................................ 7-10
7.2.3 Total Water Supply and Use Comparison ....................................................................... 7-10
8. Water Shortage Contingency Plan ..................................................................................................... 8-1
9. Demand Management Measures ......................................................................................................... 9-1
9.1 Existing Demand Management Measures for Retail ................................................................. 9-1
9.1.1 Water Waste Prevention Ordinances .................................................................................. 9-1
9.1.2 Metering ..................................................................................................................................... 9-2
9.1.3 Conservation Pricing ................................................................................................................ 9-2
9.1.4 Public Education and Outreach .............................................................................................. 9-2
9.1.5 Programs to Assess and Manage Distribution System Real Losses .................................. 9-2
9.1.6 Water Conservation Program Coordination and Staffing Support ............................... 9-3
9.1.7 Other Demand Management Measures ............................................................................... 9-3
9.2 Reporting Implementation .............................................................................................................. 9-5
9.2.1 Implementation Efforts to Achieve Water Use Targets ..................................................... 9-5
9.3 Water Use Objectives (Future Requirements) ............................................................................ 9-5
10. Plan Adoption, Submittal, and Implementation .............................................................................. 10-1
10.1 Inclusion of All 2020 Data ....................................................................................................... 10-2
10.2 Notice of Public Hearing .......................................................................................................... 10-2
10.2.1 Notice to Cities and Counties ............................................................................................ 10-2
10.2.2 Notice to the Public ............................................................................................................. 10-2
10.3 Public Hearing and Adoption .................................................................................................. 10-2
10.4 Plan Submittal ............................................................................................................................. 10-3
10.5 Public Availability ...................................................................................................................... 10-3
Table of Contents
City of Morro Bay iii 2020 Urban Water Management Plan
10.6 Amending an Adopted UWMP or Water Shortage Contingency Plan ........................... 10-3
References .................................................................................................................................................. REF-1
A. DWR Checklist ........................................................................................................................................ A-1
B. Notifications ............................................................................................................................................. B-1
C. Resolutions ............................................................................................................................................... C-1
D. AWWA Water Loss Audits .................................................................................................................. D-1
E. SB X7-7 Verification and Compliance ................................................................................................ E-1
F. Demonstration of Reduced Delta Reliance ........................................................................................ F-1
G. Water Shortage Contingency Plan .................................................................................................... G-1
H. Groundwater Permits ............................................................................................................................ H-1
I. City Water Conservation Municipal Code .......................................................................................... I-1
J. San Luis Obispo Country Multi-Jurisdictional Hazard Mitigation Plan ......................................... J-1
Table of Contents
City of Morro Bay iv 2020 Urban Water Management Plan
List of Figures
Figure 3-1. City of Morro Bay Water Service Area .............................................................................. 3-3
Figure 3-2. Annual Precipitation Data for Water Years 2008-2009 Through 2018-2019 (San Luis
Obispo County Public Works, 2021) .................................................................................................. 3-4
Figure 3-3. City of Morro Bay Land Use Zoning Map (City of Morro Bay, May 2021)................. 3-7
Figure 4-1. 2020 Percentage of Water Use by Customer Class ........................................................ 4-3
Figure 4-2. Historical and Potential Future Per Capita Demand ......................................................... 4-6
Figure 4-3. Historical and Potential Future Water Demand ................................................................. 4-7
Figure 7-1: Water Service Reliability - Five Consecutive Dry Years .................................................. 7-8
Figure 7-2. 2021–2025 Drought Risk Assessment, Supply and Demand Projections ................... 7-11
Table of Contents
City of Morro Bay v 2020 Urban Water Management Plan
List of Tables
Table 2-1. DWR 2-1R Public Water Systems .......................................................................................... 2-2
Table 2-2. DWR 2-2 Plan Identification ................................................................................................... 2-2
Table 2-3. DWR 2-3 Agency Identification ............................................................................................. 2-2
Table 2-4. DWR 2-4 Water Supplier Information Exchange ............................................................... 2-3
Table 3-1. City of Morro Bay Climate Data ............................................................................................ 3-5
Table 3-2. DWR 3-1R Current and Projected Population ..................................................................... 3-6
Table 4-1. DWR 4-1R Actual Demands for Water (AFY) ..................................................................... 4-3
Table 4-2. 2016-2020 Water Losses ....................................................................................................... 4-4
Table 4-3. DWR 4-4R 12 Month Water Loss Audit Reporting ............................................................ 4-4
Table 4-4. DWR 4-2R Projected Demands for Water .......................................................................... 4-8
Table 4-5. DWR 4-5R Inclusion in Water Use Projections ..................................................................... 4-8
Table 5-1. DWR 5-1R Baselines and Targets Summary ........................................................................ 5-2
Table 5-2. DWR 5-2R 2020 Compliance................................................................................................. 5-2
Table 6-1. Current and Projected Potable Water Supplies (AFY) (DWR Tables 6-8 & 6-9) ........ 6-2
Table 6-2. DWR 6-1R Groundwater Volume Pumped .......................................................................... 6-5
Table 6-3. DWR 6-2R Wastewater Collected within Service Area in 2020 .................................... 6-8
Table 6-4. DWR 6-3R Wastewater Treatment and Discharge within Service Area in 2020 ........ 6-8
Table 6-5. DWR 6-6R Methods to Expand Future Recycled Water Use ........................................ 6-10
Table 6-6. DWR 6-7R Expected Future Water Supply Projects or Programs ............................... 6-11
Table 6-7. DWR 6-8R Actual Water Supplies ..................................................................................... 6-12
Table 6-8. DWR 6-9R Projected Water Supplies ............................................................................... 6-12
Table 6-9. Energy Reporting – Water Supply Process Approach (DWR Table O-1A) ............... 6-13
Table 7-1: SWP Water Available to the City Based on Annual Allocation ...................................... 7-3
Table 7-2. DWR 7-1R Basis for Water Year Data (Reliability Assessment) ..................................... 7-5
Table 7-3. DWR 7-1R Basis for Water Year Data (Reliability Assessment) ..................................... 7-6
Table 7-4. DWR 7-2R Normal Year Supply and Demand Comparison ............................................ 7-6
Table 7-5. DWR 7-3R Single Dry Year Supply and Demand Comparison ....................................... 7-7
Table 7-6. DWR 7-4R Multiple Dry Years Supply and Demand Comparison .................................. 7-9
Table 7-7. DWR 7-5 Five-Year Drought Risk Assessment to Address Water Code Section
10635(b) ............................................................................................................................................... 7-12
Table 9-1. Demand Management Measures ........................................................................................... 9-1
Table 10-1. DWR 10-1R Notifications ................................................................................................... 10-2
Table 10-2. Steps to Adopt, Submit and Implement the UWMP and WSCP ................................. 10-3
Table of Contents
City of Morro Bay vi 2020 Urban Water Management Plan
Acronyms & Abbreviations
°C Degrees Celsius
°F Degrees Fahrenheit
AB Assembly Bill
AF Acre Foot
AFY Acre Feet per Year
AWWA American Water Works Association
BWRO Brackish Water Reverse Osmosis
CCWA Central Coast Water Authority
Census United States Census Bureau
CEQA California Environmental Quality Act
CFS Cubic Feet per Second
CIMIS California Irrigation Management Irrigation System
City City of Morro Bay
CSD Community Service District
CWC California Water Code
DDW SWRCB Division of Drinking Water
Delta Sacramento-San Joaquin Delta
DMM Demand Management Measure
DRA Drought Risk Assessment
DSC Delta Stewardship Council
DWR California Department of Water Resources
EIR Environmental Impact Report
EPA United States Environmental Protection Agency
ETo Evapotranspiration
FMP Facility Master Plan
GPCD Gallons per Capita per Day
GPM Gallons per Minute
IPR Indirect Potable Reuse
ITP Independent Technical Panel
kWh Kilowatt Hour
MFR Multi-family Residential
MG Million Gallons
MGD Million Gallons per Day
MWR Master Water Report
Table of Contents
City of Morro Bay vii 2020 Urban Water Management Plan
NPDES National Pollutant Discharge Elimination System
R-GPCD Residential Gallons per Capita per Day
RHNA Regional Housing Needs Assessment
RI-GPCD Residential Indoor Gallons per Capita per Day
RO Reverse Osmosis
SBX7-7 Senate Bill 7 of Special Extended Session 7
SFR Single Family Residential
SLOCFCWD San Luis Obispo County Flood Control and Water Conservation District
SLOCOG San Luis Obispo Council of Governments
SLO County San Luis Obispo County
State Board State Water Resources Control Board
SWP State Water Project
SWRCB State Water Resources Control Board
TDS Total Dissolved Solids
UF Ultrafiltration
UV AOP Ultraviolet Advanced Oxidation Process
UWMP Urban Water Management Plan
UWMP Act Urban Water Management Planning Act
WPA Water Planning Area
WRF Water Reclamation Facility
WSCP Water Shortage Contingency Plan
WTP Water Treatment Plant
WUE Water Use Efficiency
WWTP Wastewater Treatment Plant
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1
URBAN WATER MANAGEMENT PLAN
Introduction and Lay Description
This chapter provides a brief overview of the City of Morro Bay (City) and
the purpose of this 2020 Urban Water Management Plan (UWMP). It also
describes how the UWMP is organized and how it relates to other local and
regional planning efforts that the City is involved in.
This document presents the 2020 Urban Water Management Plan
(UWMP) for the City of Morro Bay (City) service area. The City
was incorporated in 1964 and served an estimated 10,757 people
in its service area in 2020. The service area of the water system
generally corresponds to the City boundary and is approximately
five square miles. The City also serves about eight residences
outside the City limits in the Chorro Valley. The City Public Works
Department manages the potable water and wastewater systems.
Currently, the City does not provide recycled water to customers.
IN THIS SECTION
• About the City
• Purpose of the
UWMP
• UWMP
Organization
• Relationship to
other documents
and initiatives
The mission of the City Public Works Department is to enhance the quality of life for its
residents by developing and maintaining the City's infrastructure in a safe and
environmentally sensitive manner. To that end, the City Public Works Department
operates a retail water distribution system to provide the citizens with a source of safe
and reliable drinking water. Maintaining a reliable and safe drinking water supply is a
significant effort for the City which requires continual planning and upkeep as the
resources and technologies available change.
Introduction and Lay Description Section 1
City of Morro Bay 1-2 2020 Urban Water Management Plan
1.1 Urban Water Management Plan Purpose and Overview
In 1983, the State of California Legislature (Legislature) enacted the Urban Water Management
Planning Act (UWMP Act). The law required an urban water supplier, providing water for municipal
purposes to more than 3,000 customers or serving more than 3,000 AFY, to adopt an UWMP every five
years demonstrating water supply reliability under normal as well as drought conditions. The UWMP
Act applies to wholesale and retail suppliers.
Since the original UWMP Act was passed, it has undergone significant expansion, particularly since the
City’s previous UWMP was prepared in 2015. Prolonged droughts, groundwater overdraft, regulatory
revisions, and changing climatic conditions affect the reliability of each water supplier as well as the
statewide water reliability overseen by California Department of Water Resources (DWR), the State
Water Resources Control Board (State Board), and the Legislature. Accordingly, the UWMP Act has
grown to address changing conditions and the current requirements are found in Sections 10610-10656
and 10608 of the California Water Code (CWC).
DWR provides guidance for urban water suppliers by preparing an UWMP Guidebook, conducting
workshops, developing tools, and providing program staff to help water suppliers prepare
comprehensive and useful water management plans, implement water conservation programs, and
understand the requirements in the CWC. Suppliers prepare their own UWMPs in accordance with the
requirements and submit them to DWR. DWR then reviews the plans to make sure they have
addressed the requirements identified in the CWC and submits a report to the Legislature summarizing
the status of the plans for each five-year cycle.
The purpose of this UWMP is for the City to evaluate long-term resource planning and establish
management measures to ensure adequate water supplies are available to meet existing and future
demands. The UWMP provides a framework to help water suppliers maintain efficient use of urban
water supplies, continue to promote conservation programs and policies, ensure that sufficient water
supplies are available for future beneficial use, and provide a mechanism for response during drought
conditions or other water supply shortages.
The UWMP is a valuable planning tool used for multiple purposes including:
• Provides a standardized methodology for water utilities to assess their water resource needs and
availability.
• Serves as a resource to the community and other interested parties regarding water supply and
demand, conservation and other water related information.
• Provides a key source of information for cities and counties when considering approval of proposed
new developments and preparing regional long-range planning documents such as city and county
General Plans.
• Informs other regional water planning efforts.
CWC Section 10632 also includes updated requirements for suppliers to prepare a Water Shortage
Contingency Plan (WSCP). The WSCP documents a supplier’s plans to manage and mitigate an actual
water shortage condition, should one occur because of drought or other impacts on water supplies. In
the 2015 UWMP cycle, the WSCP was part of the UWMP. For the 2020 UWMP, the WSCP is a
standalone document so that it can be updated independently of the UWMP but must be referenced in
and attached to the 2020 UWMP. An overview of the WSCP is described in the body of this UWMP
and the standalone WSCP is attached as Appendix G.
Introduction and Lay Description Section 1
City of Morro Bay 1-3 2020 Urban Water Management Plan
1.2 UWMP Organization
This UWMP was prepared in compliance with the CWC and generally followed DWR’s recommended
organizational outline. New requirements to include lay descriptions are accounted for in this section
and at the beginning of each chapter.
Below is a summary of the information included in the UWMP:
Chapter 1 – Introduction.
This chapter provides background information on the UWMP process, new regulatory requirements,
and an overview of the information covered throughout the remaining chapters. The UWMP was
prepared to maintain compliance with CWC and DWR requirements. The City will maintain eligibility for
DWR and other grants with submission of the UWMP, subject to final review and approval by DWR.
Chapter 2 – UWMP Preparation & Adoption.
This chapter provides information on the processes used for developing the UWMP, including efforts in
coordination and outreach. The UWMP was prepared to efficiently coordinate water supply planning
and management efforts in the region. The UWMP was also prepared in a transparent manner and
various stakeholders were engaged to seek and distribute relevant information. All public noticing was
conducted as outlined by DWR’s Guidebook to Assist Water Suppliers in the Preparation of a 2020
Urban Water Management Plan (2020 UWMP Guidebook).
Chapter 3 – System Description.
This chapter describes the City’s water systems, service areas, population demographics, climate, and
land uses. The City service area generally corresponds to the City boundary and is approximately five
square miles. In addition, the City serves eight residences outside the City limits in the Chorro Valley.
The water system primarily includes a mix of residential and commercial customers with only one
industrial customer.
Chapter 4 – Water Use Characterization.
This chapter describes and quantifies the current and projected water uses through 2045 within the
water service area of the City by customer category. In 2020, residential customers accounted for 90%
of the accounts in the service area.
Chapter 5 – SBX7-7 Baseline and Targets.
This chapter describes the Water Conservation Act of 2009, also known as SBX7-7, Baseline, Targets,
and 2020 Compliance. The calculated gallons per capita per day (GPCD) for 2020 is 90 GPCD, which
meets the City’s 2020 SBX7-7 target of 116 GPCD.
Chapter 6 – Water Supply Characterization.
This chapter describes and quantifies the current and projected potable and non-potable water supplies
for the City. Water sources are characterized with information needed to manage water resources,
assess supply reliability, perform the Drought Risk Assessment (DRA), and prepare and implement the
WSCP. The City anticipates meeting customer demands through 2045.
Chapter 7 – Water Service Reliability and Drought Risk Assessment.
This chapter describes the City’s water supply reliability during normal, single dry, and multiple dry
water years through 2045. A DRA for the next five years is also included. The water service reliability
assessment and DRA results indicate that no water shortages are anticipated within the next 25-years
under normal, single dry water years, and multiple dry water years.
Introduction and Lay Description Section 1
City of Morro Bay 1-4 2020 Urban Water Management Plan
Chapter 8 – Water Shortage Contingency Plan.
This chapter includes a summary of the standalone WSCP which is a detailed plan for how the City will
identify and respond to foreseeable and unforeseeable water shortages. A water shortage occurs when
the water supply is reduced to a level that cannot support demand at any given time or when reduction
in demand is required for various reasons. The City’s WSCP is included as Appendix G and is a
standalone document that can be amended separately as needed.
Chapter 9 – Demand Management Measures.
This chapter describes the City’s efforts to promote conservation and reduce water demand, including
discussions of specific demand management measures. The City actively promotes public awareness
and education about its water supply source and the public’s role in conserving water and protecting
shared resources. The City is committed to implementing cost effective programs that will increase
water efficiency throughout the service area.
Chapter 10 – Adoption, Submittal, and Implementation.
This chapter discusses the steps taken by the City to hold a public hearing, adopt, and submit the 2020
UWMP and WSCP. In addition, this chapter discusses implementation of the adopted UWMP and
required actions to amend the UWMP as necessary. All public noticing, UWMP adoption, and UWMP
submittal requirements were conducted as outlined by DWR’s 2020 Guidebook.
1.3 UWMP in Relation to Other Efforts
The City coordinated with multiple neighboring and stakeholder agencies to prepare this UWMP. The
coordination efforts were conducted to 1) inform the agencies of the City’s activities; 2) gather high
quality data for use in developing this UWMP; and 3) coordinate planning activities with other related
regional plans and initiatives.
In addition to the 2020 UWMP, the City is involved in several other internal and external planning efforts
and collaborates with a variety of stakeholders to achieve coordination and consistency between
various planning documents locally and regionally. The City completed the OneWater Morro Bay Plan
(OneWater Plan) in October 2018, which updated previous master plans, conducted an analysis of the
City’s water supplies, identified capacity deficiencies in the water, sanitary sewer, and storm drainage
systems in order to develop alternatives to correct deficiencies and to plan for infrastructure that will
serve future development through the year 2040. The City also completed the Plan Morro Bay
document in May 2021 which is the City’s General Plan and Local Coastal Program (LCP) Land Use
Plan (LUP). This document represents the culmination of an extensive public outreach and
involvement process, analysis by an advisory committee, commissions, City staff, elected officials, and
the community to establish the City’s vision through 2040. Past and current planning efforts by the City
have been considered and incorporated into the UWMP.
The City is also implementing the “Our Water” program which is an effort to plan and build water and
wastewater infrastructure for the City’s sustainable future. The City of Morro Bay Water Reclamation
Facility (WRF) Program will replace the City’s existing wastewater treatment plant with an advanced
water purification facility that will meet state regulations, protect the environment, and contribute a safe
and reliable water source for the City. The project includes construction of a new one million gallon per
day (MGD) advanced treatment facility, two new lift stations, approximately 3.5 miles of pipelines and
wells to inject the purified water into the groundwater aquifer, which can be extracted for reuse through
the City’s existing infrastructure. Construction of the WRF began in 2020 and project completion is
anticipated by 2023. Recycled water from the WRF will be an important asset to the City’s future water
supply portfolio upon completion. Additional information regarding the Our Water program and plans to
implement recycled water as a supplemental supply source through indirect potable reuse (IPR) is
provided in Chapter 6 and Chapter 7.
Introduction and Lay Description Section 1
City of Morro Bay 1-5 2020 Urban Water Management Plan
1.4 UWMPs and Grant or Loan Eligibility
In order for a water supplier to be eligible for a grant or loan administered by DWR, the supplier must
have a current UWMP on file that meets the requirements set forth by the Water Code. A current
UWMP must also be maintained by the supplier throughout the term of any grants or loans received.
The City has prepared the 2020 UWMP under guidance from DWR’s 2020 UWMP Guidebook.
1.5 Demonstration of Consistency with the Delta Plan for Participants
in Covered Actions
The Delta Plan is a comprehensive, long-term, legally enforceable plan guiding how federal, state, and
local agencies manage the Sacramento-San Joaquin Delta’s (Delta’s) water and environmental
resources. The Delta Plan was adopted in 2013 by the Delta Stewardship Council (DSC). Delta Plan
Policy WR P1 identifies UWMPs as the tool to demonstrate consistency with state policy to reduce
reliance on the Delta for a Supplier that carries out or takes part in a covered action. A covered action
may include activities such as a multi-year water transfer, conveyance facility, or new diversion that
involves transferring water through, exporting water from, or using water in the Delta. As a supplier that
receives imported water from the Delta through its wholesale supplier, the City is required to submit
information as outlined in Appendix C of the DWR 2020 UWMP Guidebook.
To document and quantify supplies contributing to reduced reliance on the Delta watershed and
improved regional self-reliance a number of steps must be taken, which include.
• Setting a Baseline
• Change in Delivery of Delta Water
• UWMP WR P1 Consistency Reporting
DWR does not review this analysis as part of the UWMP approval process; therefore, this information is
attached as Appendix F.
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2
URBAN WATER MANAGEMENT PLAN
Plan Preparation
This chapter of the UWMP provides information on the processes used for
developing the UWMP, including efforts in coordination and outreach.
This Plan was prepared following guidance from DWR’s 2020
UWMP Guidebook, DWR UWMP Public Workshops and
Webinars, Methodologies for Calculating Baseline and
Compliance Urban Per Capita Water Use (SB7 Guidebook)
(Resources, February 2016), and the 2020 DWR Review Sheet
Checklist (Appendix A).
The 2020 UWMP was prepared in a transparent manner and the
City actively engaged stakeholders and the public to both seek
and distribute water use, supply, and reliability information to
strengthen the regions’ ability to assess and plan for the region’s
water future. Details regarding the City’s UWMP preparation and
the coordination and outreach efforts conducted are provided in
this chapter.
IN THIS SECTION
• UWMP Preparation
• Coordination and
Outreach
• UWMP Adoption
and Notification
• UWMP Submittal to
the State
Plan Preparation Section 2
City of Morro Bay 2-2 2020 Urban Water Management Plan
2.1 Plan Preparation
The City prepared this 2020 UWMP in accordance with CWC Section 10617, which requires water
supplier with 3,000 or more service connections, or those supplying 3,000 AFY or more to prepare an
UWMP. Suppliers are required to update UWMPs at least once every five years on or before July 1, in
years ending in six and one, incorporating updated and new information from the five years preceding
each update. The City has included all requisite data in the development of this 2020 UWMP.
2.2 Basis for Preparing a Plan
The City is preparing an individual UWMP and is not a member of a Regional UWMP or Regional
Alliance. The City served an estimated 10,757 people in its service area, through 5,491 metered
connections, and supplied 1,090 AFY of potable water in 2020 to customers. Throughout this Plan,
water volume is represented in units of acre-feet (AF), unless otherwise noted, and data is presented
on a calendar year basis. Required DWR tables presenting this information are provided in Table 2-1,
Table 2-2, and Table 2-3.
Table 2-1. DWR 2-1R Public Water Systems
PUBLIC WATER
SYSTEM NUMBER
PUBLIC WATER
SYSTEM NAME
NUMBER OF MUNICIPAL
CONNECTIONS 2020
VOLUME OF WATER
SUPPLIED 2020 (AFY)
CA4010011 City of Morro Bay 5,491 1,090
TOTAL 5,491 1,090
Table 2-2. DWR 2-2 Plan Identification
TYPE OF PLAN MEMBER OF
RUWMP
MEMBER OF
REGIONAL ALLIANCE
NAME OF RUWMP
OR REGIONAL ALLIANCE
Individual UWMP No No NA
Table 2-3. DWR 2-3 Agency Identification
TYPE OF SUPPLIER YEAR TYPE UNIT TYPE
Retailer Calendar Years Acre-Feet (AF)
2.3 Coordination and Outreach
The City coordinated with San Luis Obispo County (SLO County) and other stakeholder agencies to
prepare the 2020 UWMP. The coordinated efforts were conducted to 1) inform the agencies of the
City’s efforts and activities; 2) gather high quality data for use in developing this UWMP; and 3)
coordinate planning activities with other related regional plans and initiatives.
CWC Section 10621(b) and Delta Plan Policy WR P1 requires that Suppliers notify cities and counties
to which they serve water that the UWMP, WSCP, and reduced reliance on the Delta watershed
documentation are being updated and reviewed. The CWC specifies that this must be done at least 60
days prior to the public hearing. To fulfill this requirement, the City sent letters of notification of
preparation of the 2020 UWMP, WSCP, and reduced reliance on the Delta watershed documentation to
Plan Preparation Section 2
City of Morro Bay 2-3 2020 Urban Water Management Plan
San Luis Obispo County 60 days prior to the public hearing. Notifications were also sent to the Central
Coast Water Authority (CCWA) and San Luis Obispo Council of Governments (SLOCOG). Copies of
the 60-day notification letters are attached as Appendix B. In addition, the City exchanged supply and
demand information with San Luis Obispo County Flood Control and Water Conservation District
(SLOCFCWD) and maintained communication throughout development of the 2020 UWMP as
SLOCFCWD provides State Water Project (SWP) water to the City (Table 2-4).
Table 2-4. DWR 2-4 Water Supplier Information Exchange
WHOLESALE WATER SUPPLIER NAME
San Luis Obispo County Flood Control and Water Conservation District
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3
URBAN WATER MANAGEMENT PLAN
System Description
This chapter describes the City’s water system, service area, population
demographics, local climate, and land uses.
The City of Morro Bay is located along the central coast of
California in San Luis Obispo County; along Highway 1
approximately 12 miles north of the city of San Luis Obispo. The
City was incorporated in 1964 and is governed by a five-member
City Council. The Public Works Department manages the potable
water and wastewater systems. The 5 square mile water and
wastewater system service area generally corresponds to the City
Limits with the exception of eight residences located outside the
City limits in the Chorro Valley. The water system primarily
includes a mix of residential and commercial customers with only
a small portion of industrial customers.
IN THIS SECTION
• City Service Area
• Climate
• Population and
Demographics
• Land Uses
System Description Section 3
City of Morro Bay 3-2 2020 Urban Water Management Plan
3.1 General Description & Service Area Boundary Map
The City’s water system includes approximately 72 miles of active water distribution pipelines, ten
treated water storage tanks, three booster pump stations, four pressure reducing valve stations, 7
active wells, and six pressure zones. Water is provided to a mix of residential and commercial
customers with only a small portion of industrial customers. A graphical illustration of the City’s service
area is provided as Figure 3-1. There have been no significant changes to the City’s service area since
the 2010 and 2015 UWMPs were prepared. The Morro Bay Power Plant was included within the City’s
service area in 2014 but since that time the plant has received little to no water from the City and does
not have an associated residential population.
A description of the City’s wastewater service area is discussed in Section 6.2.5.
View of city from the bay
System Description Section 3
City of Morro Bay 3-3 2020 Urban Water Management Plan
Figure 3-1. City of Morro Bay Water Service Area
System Description Section 3
City of Morro Bay 3-4 2020 Urban Water Management Plan
3.2 Service Area Climate
The City’s service area has a dry, sub-tropical, climate that is heavily influenced by its proximity to the
Pacific Ocean. Ocean breezes keep temperatures cool in the summer and warmer in the winter.
Climate data from the California Irrigation Management Information System (CIMIS) collected from
Station #160 San Luis Obispo West from January 2005 to December 2020, was evaluated for
evapotranspiration (ETo), and temperature data (CIMIS, 2021). Precipitation data was obtained from
the San Luis Obispo County Public Works rain recording station (Canet #747) for water years beginning
2007-2008 and ending 2019-2020 (San Luis Obispo County Public Works, 2021). The area benefits
from a relatively low evapotranspiration rate when compared to inland areas due to its location being
along the coast. The area also has a Mediterranean rainfall pattern with rains typically occurring from
December through March. The total annual precipitation as provided by Canet station #747 is 14.37
inches, with average monthly precipitation ranging from 0.02 to 4.10 inches. The peak summertime
irrigation period combined with seasonal tourism results in maximum daily water demands occurring
during the summer. The majority of rainfall occurs in the winter months, with December and January
having the highest average rainfall. Figure 3-2 shows the annual precipitation for water years 2008-
2009 through 2018-2019 and illustrates which years fall above or below the annual average
precipitation for this period. Table 3-1 shows the monthly averages for precipitation, ETo, and
temperature.
Climate change and the potential impacts within the City’s service area are discussed in Chapter 4,
climate change considerations.
Note: Precipitation data was not available for the month of November during water year 2016-2017.
Figure 3-2. Annual Precipitation Data for Water Years 2008-2009 Through 2018-2019 (San Luis Obispo
County Public Works, 2021)
0
5
10
15
20
25
30
35
InchesTotal Precipitation Avgerage Annual Precipitation
System Description Section 3
City of Morro Bay 3-5 2020 Urban Water Management Plan
Table 3-1. City of Morro Bay Climate Data
MONTH AVERAGE PRECIPITATION
(INCHES)1
AVERAGE ETO
(INCHES)2
AVERAGE AIR TEMP
(°F)2
January 4.10 2.6 55.8
February 2.81 2.7 54.6
March 2.48 3.8 56.1
April 0.68 4.6 58.0
May 0.22 5.2 59.9
June 0.11 5.3 62.9
July 0.22 5.9 66.5
August 0.02 5.5 66.5
September 0.10 4.4 65.2
October 1.09 3.7 63.1
November 0.89 2.7 58.4
December 2.84 2.3 54.0
ANNUAL AVERAGE 14.37 48.6 60.1
Notes:
1 Data from San Luis Obispo County Public Works Canet Station #747 for water years beginning 2007-2008 and ending
2019-2020 (San Luis Obispo County Public Works, 2021)
2 Data from CIMIS weather station #160 San Luis Obispo West; https://cimis.water.ca.gov/. Averages calculated from
2005-2020 data (CIMIS, 2021).
3.3 Service Area Population and Demographics
The City provided water to an estimated 10,757 people in 2020. The coastal mountain ranges limit the
development extents of the City Service area. In addition, future growth in the City is limited by
Measure F, a voter-approved growth management ordinance that limits the city to 12,200 residents.
Population growth estimates are anticipated to be slow and stable. A summary of the population and
demographics for the City is provided in the following sections.
3.3.1 Service Area Population
2020 U.S. Census data was used for determining the City’s 2020 service area population (U.S. Census
Bureau, Accessed August 1, 2021). Population projections and annual growth rates for 2025-2040 were
aligned with those from the OneWater Morro Bay Plan and Plan Morro Bay documents, which assume
a buildout population of 12,149 in 2040 (Carollo, October 2018). The San Luis Obispo Council of
Governments (SLOCOG) also estimates growth throughout the region and identified an estimated 2045
population of 12,169 for the City, published in SLOCOG’s 2050 Regional Growth Forecast for San Luis
Obispo County (Beacon Economics & SLOCOG Staff, June 2017). The SLOCOG 2045 population
estimate was used for this UWMP. Current and estimated population projections for the service area
through the year 2045 are provided in Table 3-2.
System Description Section 3
City of Morro Bay 3-6 2020 Urban Water Management Plan
Table 3-2. DWR 3-1R Current and Projected Population
POPULATION
SERVED 2020 2025 2030 2035 2040 2045
Morro Bay 10,757 11,213 11,525 11,837 12,149 12,169
Sources:
2020: 2020 U.S. Census, https://www.census.gov/quickfacts/morrobaycitycalifornia
2025-240: OneWater Morro Bay Plan and Plan Morro Bay
2045: San Luis Obispo Council of Governments 2050 Regional Growth Forecast for San Luis Obispo County
3.3.2 Other Social, Economic, and Demographic Factors
Based on 2015-2019 data, the United States Census Bureau (Census) estimates that there was a total
of 6,386 housing units in the City of Morro Bay. Of these housing units, 70.8 percent were single-family
houses, 19.5 percent of the housing units were located in multi-unit structures, 8.0 percent were mobile
homes with the remaining housing units classified as “other”. The average household size was 2.13
people with 17.5 percent of all households having one or more people under the age of 18 and 47.7
percent of all households having one or more people 65 years and over. Approximately 48% of
households are composed of married or cohabitating couples. The median age of a resident within the
City is approximately 50.8 years old (United States Census Bureau, n.d.).
Morro Bay is a multigenerational community with a large number of residents over 65. With the
substantial elderly population, the community’s percentage of seniors is nearly double the state
average. By comparison, the community has a relatively smaller share of youth. Despite this imbalance,
the working age population has remained constant to support the local economy and community needs
(City of Morro Bay, May 2021).
According to the U.S. Census Bureau, the 2019 median household income (MHI) for the City is
$68,262, the level of poverty is 11.0% of the population, and 4.1% of households received SNAP
(Supplemental Nutrition Assistance Program) from 2015 to 2019. Of the people of the City of Morro Bay
that identify as one race alone, 88.4% were White, 1.3% were Black or African American, 1.2% were
Native American, 3.6% were Asian, and 2.3% were some other race. Approximately 3.3% identified as
two or more races. Of the total population, an estimated 80.2% identified as White non-Hispanic and
11.2% as Hispanic. The U.S. Census Bureau clarifies that people of Hispanic origin may be of any
race (United States Census Bureau, n.d.). Tourism is a key economic factor for Morro Bay and the City
does experience increased water demand during the main tourism season, primarily in the months of
July, August, and September. Population changes associated with tourism are temporary and vary from
year to year. As such, population changes due to tourism are not captured in census data and
populations used in this UWMP. Increased water demands associated with tourism are accounted for in
the yearly water demands described in Chapter 4.
3.4 Land Uses within Service Area
Almost half of the City’s land is designated as part of the Morro Bay State Park and State Beach. An
additional 18% of the land use is dedicated to other types of parks and open spaces. Single family
homes make up 14% of the land use within the City whereas multi-family homes make up less than 1%.
With combined agricultural use representing 6.25% of land uses and just over 1% of land undeveloped,
any new population growth will likely require increased redevelopment in key areas or annexation of
new land (City of Morro Bay, May 2021). Figure 3-3 shows the land use by customer type in the City.
System Description Section 3
City of Morro Bay 3-7 2020 Urban Water Management Plan
Figure 3-3. City of Morro Bay Land Use Zoning Map (City of Morro Bay, May 2021)
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URBAN WATER MANAGEMENT PLAN
Water Use Characterization
This chapter describes and quantifies the City’s past, current, and projected
water uses through 2045. The City provides potable water to all its
customers, which are comprised of about 90% residential, 7% commercial,
1% institutional/governmental, and 2% landscaping accounts.
Accurately tracking and reporting current water demands allows
the City to properly analyze the use of their resources in order to
conduct robust resource planning. Estimating future demand as
accurately as possible allows the City to appropriately plan for
infrastructure investments to manage its water supply and reliably
serve the land uses and population identified in the City’s General
Plan called Plan Morro Bay. Evaluation of future growth and
related water demand, aligned with Plan Morro Bay, provides
essential information for developing demand projections to meet
the City’s build‐out goals. Projected demands are expected to
range from approximately 1,333 AFY in 2025 to 1,445 AFY in
2045.
IN THIS SECTION
• Non-Potable vs.
Potable Water Use
• Past, Current, and
Projected Use
• Projected Water
Demand for Lower
Income Households
• Climate Change
Impacts
Water Use Characterization Section 4
City of Morro Bay 4-2 2020 Urban Water Management Plan
4.1 Non-Potable Versus Potable Water Use
To provide clarity between potable and recycled water sources, these water sources have been
discussed in separate sections of this document. A detailed description of recycled water is provided in
Section 6.2.5.
A summary of both potable and recycled water demands has been provided in Table 4-5.
4.2 Past, Current, and Projected Water Use by Sector
Current system demands are summarized, by sector, in Table 4-1. Projected demands are based on
using a Gallons Per Capita Per Day (GCPD) factor applied to future population estimates.
4.2.1 Water Use Sectors Listed in Water Code
Water suppliers are required to identify water uses, to the extent that records are available, for at least
each of the 10 water use sectors identified in CWC Section 10631(d) to assist in the water demand
projections. Potential recycled water uses are described in Chapter 6.
The City serves the following potable water uses:
Single-Family Residential (SFR): SFR customers are typically on a lot with a free-standing
building containing one dwelling unit and the dwelling unit may include either an attached or detached
secondary dwelling. Condominiums are included within the SFR use type. The City services 8 SFR
customers outside City limits.
Multi-Family Residential (MFR): MFR customers are typically multiple dwelling units within one
building or several buildings within one complex. The City includes mobile home residences under this
use type.
Commercial: Commercial customers typically provide or distribute a product or service.
Institutional/Governmental: Institutional and governmental water customers are typically public
services, such as higher-education institutions, schools, courts, churches, hospitals, government
facilities, and nonprofit research institutions.
Industrial: Industrial customers typically manufacture or process materials. The City has only one
industrial customer which is the power plant.
Landscape: For the purposes of this UWMP, the City considers water use for landscape irrigation,
vacant land, and City parks as landscape.
Losses: Distribution system water losses are the water losses from the point of entry to the distribution
system to the delivery point at the customer’s system. Water losses are discussed in Section 4.2.3.
4.1.1 Past and Current Water Use
The City serves potable water for a variety of uses, as summarized in Table 4-1. The City has been
consistently reducing its water use since the implementation of water conservation programs during the
drought ending in the early 1990s. More recently, water use over the past five years has notably
reduced from the pre-drought levels prior to 2013. Over the last five years, the City used an average of
1,057 AFY. The most recent peak in demand occurred in 2013 with a total demand of 1,246 AFY. In
2020, 90% of the total water accounts, 72% of the total water deliveries (excluding non-revenue water)
and 64% of water deliveries (including non-revenue water) were to residential customers. Figure 4-1
Water Use Characterization Section 4
City of Morro Bay 4-3 2020 Urban Water Management Plan
shows the percentage of water used by each customer class in 2020 and Table 4-1 shows the annual
volume of water used by each customer class for 2020.
Figure 4-1. 2020 Percentage of Water Use by Customer Class
Table 4-1. DWR 4-1R Actual Demands for Water (AFY)
USE TYPE WHEN DELIVERED LEVEL OF TREATMENT WHEN DELIVERED 2020 VOLUME
Single-Family Residential Drinking Water 560
Multi-Family Residential Drinking Water 133
Commercial Drinking Water 210
Institutional/Governmental Drinking Water 46
Industrial Drinking Water <1
Landscape Drinking Water 11
Losses Drinking Water 129
TOTAL 1,090
Single Family
Residential
52%
Multi Family
Residential
12%
Commercial
19%
Institutional/
Governmental
4%
Landscape
1%
Non-Revenue Water
12%2020
Single Family Residential Multi Family Residential Commercial
Institutional/ Governmental Landscape Non-Revenue Water
Water Use Characterization Section 4
City of Morro Bay 4-4 2020 Urban Water Management Plan
4.1.2 Distribution System Losses
System water losses occur as a result of leaks and ruptures in the existing distribution network, system
flushing and cleaning, data errors, theft, uncalibrated meters, or pump pressure relief at wells.
Addressing water losses can increase water supplies and recover revenue. Section 9.1.5 discusses
the City’s programs to assess and manage distribution system real loss.
Over the last five years, the City water losses have ranged from 17 AFY to 129 AFY as shown in Table
4-2 and Table 4-3. The increasing volume of water loss is most likely due to a combination of factors,
especially inaccuracies in the supply volume of SWP water provided to the City. The City now receives
“True Up” SWP water delivery values which are provided by the County of San Luis Obispo and reflects
adjusted values that are synced with the DWR meter. The City may not receive the “True Up” values up
to a year later. The City now has a meter installed to monitor SWP water deliveries and will have a
better understanding of actual SWP water deliveries which will assist with understanding water losses
in the water distribution system.
CWC Section 10631 (d)(3)(C) requires water suppliers to provide data to determine if the supplier will
meet its State Board water loss performance standard. Although the standard has not yet been
implemented, the data needs to be included the 2020 UWMP. Compliance with the future water loss
performance standards will be completed in the next UWMP cycle.
Detailed assessments of water loss were completed since 2015 using American Water Works
Association (AWWA) Water Audit Software and are provided in Appendix D and are summarized in
Table 4-3.
Table 4-2. 2016-2020 Water Losses
2020
Losses, AFY 129
Percentage of Losses 11.9%
Table 4-3. DWR 4-4R 12 Month Water Loss Audit Reporting
REPORT PERIOD START DATE
VOLUME OF WATER LOSS (AFY)1
MM YYYY
01 2016 17
01 2017 25
01 2018 42
01 2019 103
2020 2 Not Available
1 Taken from the field "Water Losses" (a combination of apparent losses and real losses) from the AWWA worksheet.
2 The 2020 AWWA report was not available in time for this UWMP
4.1.3 Projected Water Use
Demands were estimated using a Gallons Per Capita Per Day (GCPD) method. The total demand was
estimated by multiplying selected GPCD factors by the projected populations for 2025, 2030, 2035,
2040, and 2045. It is important to note that this method is used for the UWMP as a water supply
planning tool that shows how the City can provide supply to meet the potential growth identified in Plan
Water Use Characterization Section 4
City of Morro Bay 4-5 2020 Urban Water Management Plan
Morro Bay, which is the basis for growth management. It is also important to note that there are
different GPCD terms that can be easily confused. GPCD is different than residential GPCD (R-GPCD),
which accounts only for the residential portion of usage, and residential indoor (RI) GPCD (RI-GPCD),
which only accounts for the residential indoor portion of total water use. The GPCD method used in this
UWMP represents total city water usage including non-residential and residential uses attributed to the
total residential population as a proxy for water usage patterns assuming residential and non-residential
usage will change in alignment with changes in residential population and water usage. The GPCD
method is a high-level demand projection method used for water resources planning purposes and
does not consider individual development projects or peak usage resulting from changes in tourism.
Projected populations are described in Chapter 3. Table 4-6 and Table 4-9 present projected demands
through 2045. Demand projections are consistent with projections from the OneWater Morro Bay Plan
(Carollo, October 2018) and Plan Morro Bay (City of Morro Bay, 2021).
While the 2020 GPCD was below the SBX7-7 target and water use trends have consistently been on
the decline since the early 1990’s, demand projections are based on the same assumption from the
OneWater Morro Bay Plan of future average per capita demand of approximately 106 GPCD. 106
GPCD was the average demand from 2010-2014, thus assuming a future “rebound” to pre-drought
usage patterns by 2025 and over the planning horizon of this UWMP. This is consistent with the 2020
UWMP Guidebook’s recommendation to consider unconstrained demand as the expected water use,
which represents water use without drought conditions or any water supply and demand restrictions. As
described in the OneWater Morro Bay Plan, “this is likely a conservative assumption because per
capita water demand is expected to decrease in the future due to increased conservation measures
and more water efficient construction associated with new development. Because the purpose of the
OneWater Morro Bay Plan is to size infrastructure needs for the distribution system, it is appropriate to
include a level of conservatism when planning future transmission, distribution, and storage needs”
(Carollo, October 2018).
The City also considered a rebound to the SBX7-7 2020 target usage of 116 GPCD, which represents
an even more conservatively high “unconstrained demand” rebound to usage experienced in 2005 and
2006. Per capita usage has steadily trended downward since 2006, which is assumed to be due to
suppressed demand from the economic Great Recession and subsequent drought years. While
demands have been constrained since 2006, it is not realistic to assume that demand will rebound to
2006 levels considering changes in customer usage behaviors and permanent conservation measure
implementation that have contributed to permanent reductions in water use. Therefore, the OneWater
Morro Bay Plan demand projection using the 2010-2014 average GPCD is a more realistic
“unconstrained demand” because it accounts for permanently reduced usage patterns. The OneWater
Morro Bay Plan demands include a rebound to unconstrained, pre-drought usage patterns while
accounting for permanent conservation savings achieved through the Great Recession and drought.
The City is also aware that future water use efficiency standards are under development by DWR,
which will supersede SBX7-7 standards, and will likely require demands to be lower than the 2020
SBX7-7 target.
The State has proposed standards for residential indoor use, measured as RI-GPCD, which reduces
from 55 RI-GPCD in 2020 to 47 RI-GPCD in 2025 and 42 RI-GPCD in 2030. RI-GPCD is only one
component of the forthcoming Urban Water Use Objectives that are still under development. As such, a
rough demand estimate scenario assuming a future DWR water use efficiency standard of 42 RI-GPCD
by 2030 is shown in Figure 4-2 and Figure 4-3.
This UWMP assumes that demands will be consistent with OneWater Morro Bay Plan projections as
shown in Table 4-4 for conservative supply planning purposes. In recognition that water demand could
be potentially lower than existing demand to comply with forthcoming water use efficiency standards,
the City plans to continue implementing water use efficiency measures and encouraging reductions in
water use to meet future water use standards and to enhance resiliency for drought and other water
shortage conditions as described in Chapters 7, 8, and 9.
Water Use Characterization Section 4
City of Morro Bay 4-6 2020 Urban Water Management Plan
Figure 4-2. Historical and Potential Future Per Capita Demand
116
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
60
70
80
90
100
110
120
130
140
150
1996199820002002200420062008201020122014201620182020202220242026202820302032203420362038204020422044Water Use (Gallons/Capita/Day)Recession
Drought
OneWater Morro Bay Projections (2010-14 Avg of 106 GPCD) by 2025
SBX7-7 GPCD Target (2020)
Historic GPCD
Rebound to SBX7-72020 target in 2025
Future State Standards for Residential Indoor Use of 42 RI-GPCD by 2030
Water Use Characterization Section 4
City of Morro Bay 4-7 2020 Urban Water Management Plan
Figure 4-3. Historical and Potential Future Water Demand
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
19952000200520102015202020252030203520402045Water Demand (AFY) Recession
Drought
OneWater Morro Bay Projections (2010-14 Avg of 106 GPCD) by 2025
Historical Water Demand
Rebound to SBX7-72020 target in 2025
Future State Standards for Residential Indoor Use of 42 RI-GPCD by 2030
Water Use Characterization Section 4
City of Morro Bay 4-8 2020 Urban Water Management Plan
Table 4-4. DWR 4-2R Projected Demands for Water
USE TYPE
PROJECTED WATER USE
2025 2030 2035 2040 2045
Single-Family Residential 687 704 722 745 745
Multi-Family Residential 163 167 171 176 176
Commercial 303 311 319 329 329
Institutional/Governmental 65 67 68 71 71
Landscape 22 23 23 24 24
Losses 92 95 97 100 100
TOTAL 1,333 1,366 1,400 1,445 1,445
Note:
1. Water deliveries for the Industrial customer class totaled less than 1 AFY and were not included in this table
Table 4-5 satisfies the requirement to determine if anticipated water conservation savings were
incorporated when developing future demand projections. Conservation savings were not considered
and included in developing demand estimates for the next 20 years by using the selected target of 106
GPCD, which is assumed to represent unconstrained demand.
Table 4-5. DWR 4-5R Inclusion in Water Use Projections
Are Future Water Savings Included in Projections? Refer to Appendix K of UWMP Guidebook. No
Section or page number where the citations utilized in the demand projects can it be found: 4.2.4
Are Lower Income Residential Demands Included in Projections? Yes
4.1.4 Characteristic Five-Year Water Use
In addition to past and projected uses, the UWMP more closely analyzes anticipated conditions for the
next five years (2021 – 2025). In the next five years, the City anticipates that demands may increase to
approximately 1,333 AFY. This increase is based on normal year conditions representing a “rebound”
from current 2020 use and an increase in population and associated non-residential demand. 2020 use
is likely lower than typical unconstrained demand as many of the City’s residents continue to conserve
water after the most recent drought and economic recession. Details on an analysis for the next five
years are discussed in Chapter 7.
4.3 Water Use for Lower Income Households
Changes to the CWC section 10631.1 since 2005 require demand projections to include projected
water use for single-family and multi-family residential housing needed for lower income households.
Low-income households are defined as households making less than 80% of the statewide median
household income. The Regional Housing Needs Assessment (RHNA) determines the housing needs
in each jurisdiction over the planning period. SLOCOG’s current RHNA planning period is from January
1, 2019, through December 31, 2028. For this planning period, one hundred and fifty-seven (157) new
low- and very low-income units are projected to be needed in the City by 2028 (SLOCOG, 2019). It is
Water Use Characterization Section 4
City of Morro Bay 4-9 2020 Urban Water Management Plan
important to note that the RHNA requirement is to have land zoned for the projected low-income
housing need but not necessarily build the units. The low-income deliveries projections are included in
the City’s total projected water deliveries as part of the GPCD demand projection calculation, as shown
in Table 4-4. Additionally, it should be noted that Morro Bay does not actively monitor demand for lower
income households for billing purposes.
4.4 Climate Change Considerations
Consistent future use of groundwater and SWP sources may be affected by climate change.
“Projections of climate change in California indicate a further intensification of wet and dry extremes and shifting
temperatures that can…affect both water use and supplies. Extreme and higher temperatures can lead to
increases in water use…Projections of more frequent, severe, and prolonged droughts could lead to not only less
surface water available, but also exacerbating ongoing stressors in groundwater basins across the state”
(Resources, March 2021).
Higher temperatures decrease the amount of precipitation available for groundwater recharge and from
surface water sources while increasing water use, especially for outdoor use. Reductions in future
supply due to impacts associated with climate change were considered as part of the projected supply
discussed in Chapters 6 and 7. Increases in future water use patterns due to climate change factors
were considered as part of the conservative demand projection provided in Chapter 4.
5-1
5
URBAN WATER MANAGEMENT PLAN
SBX7-7 Baseline, Targets, and 2020 Compliance
This chapter describes compliance with the Water Conservation Act of 2009
Baseline, Targets, and 2020 Compliance. The goal of this chapter is to
demonstrate compliance with the targeted 2020 water-use reduction of 20
percent from the Baseline.
Senate Bill X7-7 (SBX7-7) was incorporated into the UWMP Act in
2009 and requires that all urban water suppliers increase water
use efficiency with the overall goal to decrease per-capita water
consumption within the state by 20 percent by the year 2020.
SBX7-7 required DWR to develop certain criteria, methods, and
standard reporting forms through a public process that water
suppliers could use to establish their baseline water use and
determine their water conservation targets.
IN THIS SECTION
• SBX7-7 Baselines
& Targets Forms
and Tables
• 2020 Compliance
This chapter describes the City’s methods for calculating baseline and target water
consumption in accordance with DWR’s Methodologies for Calculating Baseline and
Compliance Urban Per Capita Water Use (California Department of Water Resources,
February 2016). The SBX7-7 Verification Forms and Compliance Forms, which are
required to be submitted to DWR to demonstrate compliance with the SBX7-7
requirements, are presented in Appendix E. This chapter also shows that the City
achieved its 2020 water use target of 116 GPCD with a calculated GPCD for 2020 of 90
GPCD.
SBX7-7 Baseline, Targets, and 2020 Compliance Section 5
City of Morro Bay 5-2 2020 Urban Water Management Plan
5.1 SBX7-7 Forms and Tables
The SBX7-7 Verification Form was submitted as part of the City’s 2015 UWMP to establish the baseline
and 2020 water use target. Since the 2015 UWMP there have been no significant changes to the City’s
service area that impact population. The City now serves the Morro Bay Power Plant, but the plant has
received little to no water from the City and does not have an associated residential population.
Therefore, the SBX7-7 baseline, and target are assumed to be the same as reported in the 2015
UWMP. The City’s baseline and 2020 water use target are summarized in Table 5-1.
The City selected SBX7-7 Method 3 to determine the 2020 GPCD target. This method results in a
target of 117 GPCD which is 95% of the Central Coast Hydrologic Region baseline. Regardless of the
target calculation method, each agency must confirm that the calculated 2020 target meets the
minimum reduction required. This minimum reduction is defined as 5 percent of the 5-year baseline per
capita water use of 122 GPCD shown in Table 5-1. The 2020 target must be less than 95 percent of
the 5-year baseline. Since the 2020 Target of 117 GPCD is higher than 95% of 122, or 116 GPCD, the
lower calculation establishes the confirmed 2020 target of 116 GPCD. A copy of the completed SBX7-
7 Verification Form is included in Appendix E.
Table 5-1. DWR 5-1R Baselines and Targets Summary
BASELINE PERIOD START YEAR END YEAR AVERAGE BASELINE GPCD* CONFIRMED 2020 TARGET *
10-15 Year 1995 2004 128 116
5 Year 2003 2007 122
*All values are in Gallons per Capita per Day (GPCD)
*All cells in this table are populated manually from the supplier's SBX7-7 Verification Form.
5.2 2020 Compliance Daily Per-Capita Water Use (GPCD)
As part of the 2020 UWMP, the City must demonstrate compliance with its 2020 water use target by
completing the SBX7-7 2020 Compliance Form. This form is an abbreviated version of the SBX7-7
Verification Form solely for 2020 compliance calculations. A summary of the 2020 SBX7-7 2020
Compliance Form is shown in Table 5-2. There were no extreme cases that warranted an adjustment
to the GPCD compliance calculation. The calculated GPCD for 2020 is 90 GPCD, which meets the
City’s 2020 SBX7-7 target of 116 GPCD. A copy of the completed SBX7-7 Compliance Form is
included in Appendix E.
Table 5-2. DWR 5-2R 2020 Compliance
ACTUAL
2020
GPCD*
OPTIONAL ADJUSTMENTS TO 2020 GPCD
2020
CONFIRMED
TARGET
GPCD*
SUPPLIER
ACHIEVED
TARGETED
REDUCTION
IN 2020
EXTRAORDINARY
EVENTS*
ECONOMIC
ADJUSTMENT*
WEATHER
NORMALIZATION*
TOTAL
ADJUSTMENTS*
ADJUSTED
2020
GPCD*
90 0 0 0 0 90 116 Yes
*All values are in Gallons per Capita per Day (GPCD)
*All cells in this table are populated manually from the supplier's SBX7-7 Verification Form.
6-1
6
URBAN WATER MANAGEMENT PLAN
Water Supply Characterization
This chapter describes and quantifies the City’s current and projected water
supplies. Each water source is characterized with information needed to
manage water resources, assess supply reliability, perform the Drought Risk
Assessment, and prepare and implement the WSCP.
The following sections provide an overview of the City’s current
and projected water supplies through 2045. The City relies on
multiple water supply sources as described in more detail in the
following sections. The City anticipates meeting customer
demands through 2045. The City’s current supply sources include
purchased State Water Project (SWP) water and local
groundwater. A description of the City’s planning efforts for
recycled water are also included within this section of the UWMP.
IN THIS SECTION
• Water Supply
Characterization
• Wastewater and
Recycled Water
• Future Water
Projects
• Climate Change
• Energy Intensity
Water Supply Characterization Section 6
City of Morro Bay 6-2 2020 Urban Water Management Plan
6.1 Water Supply Analysis Overview
This section describes and quantifies the current and projected sources of potable water available to
the City for the 25-year period covered by the UWMP. A description and quantification of existing and
potential non-potable recycled water uses, and supply availability is also included. Table 6-1 provides a
summary of the existing and planned potable water supply volumes from 2020 to 2045 in five-year
increments
Table 6-1. Current and Projected Potable Water Supplies (AFY) (DWR Tables 6-8 & 6-9)
ACTUAL
WATER SUPPLY
PRODUCTION
(AFY)
REASONABLY AVAILABLE VOLUME (AFY)
WATER
SUPPLY
ADDITIONAL DETAIL
ON WATER SUPPLY 2020 2020 2025 2030 2035 2040 2045
Purchased or
Imported
Water
SWP 1,029 1,313 1,313 1,313 1,313 1,313 1,313
Brackish
Groundwater
(Morro Basin)
Treated brackish
groundwater at RO
plant
61 407 407 407 407 407 407
TOTAL 1,090 1,720 1,720 1,720 1,720 1,720 1,720
6.2 UWMP Water Supply Characterization
The City’s water supply sources include groundwater from the Morro Valley Basin and imported SWP
water via contract with the San Luis Obispo County Flood Control and Water Conservation District
(SLOCFCWCD). The City does not currently utilize surface water, stormwater, or recycled water.
However, the City’s Water Reclamation Facility is currently under development and the City has plans
to implement recycled water as a supplemental supply source through indirect potable reuse (IPR). The
water supply used to meet City customers’ current and future demands is described below.
6.2.1 Purchased or Imported Water
The City purchases imported water from the SWP via contract with SLOFCWCD. By contract, the City
is limited to 1,313 AFY of SWP water. The City has two existing contracts with the SLOCFCWCD for
SWP water, both executed in 1992.
SLOFCWCD was established in 1945 to provide flood control for the County and expanded to perform
water resources management. In addition to supplying water to its eleven purveyors, SLOFCWCD has
operational relationships and agreements with the Department of Water Resources (DWR) and Central
Coast Water Authority (CCWA). SLOCFCWCD obtains its water supply and conveyance capacity from
DWR who owns and operates the SWP. CCWA operates and maintains the conveyance system for
DWR that delivers SWP to SLOCFCWCD, therefore SLOCFCWCD interacts with CCWA for water
delivery requests.
The City relies mostly on imported water from the SWP and local groundwater. However, the City’s
local groundwater requires treatment due to elevated nitrate levels and is a less cost-effective supply
source. Therefore, the City’s existing water supplies currently consist primarily of SWP water.
Water Supply Characterization Section 6
City of Morro Bay 6-3 2020 Urban Water Management Plan
Contractually, the City is entitled to 1,313 AFY of SWP water, plus an additional 174 percent “drought
buffer” to ensure reliability when the DWR reduces deliveries during dry years. The “drought buffer”,
detailed in the Drought Buffer Water Agreement for 2,290 AFY, allows The City to receive its full 1,313
AFY allocation when the SWP can deliver at least 36 percent of contracted allocations.
The City holds 2,290 AFY of additional allocation with the District, usually referred to as a “drought buffer”,
as described above. Drought buffer water is water that has no pipeline capacity for delivery. Rather, it is
used to increase deliveries during times of drought when Table A allocations are less than 100%.
Throughout every year DWR sets allocations as a percentage of contracted volumes for SWP
Contractors based on consideration of hydrologic and climatic data and modeling. Historically,
percentage allocations have ranged from 5%- 100%. For example, if Table A allocations were 40% of
contracted amounts, without a drought buffer the City would receive 525 AF of water considering the
City’s subcontracts, and with a drought buffer of 1,313 AF the City would receive an additional 788 AFY
for a total of 1,313 AFY. In any given year, however, under its current contracts the City’s total SWP
deliveries cannot exceed 1,313 AF and the amount that can be stored in San Luis Reservoir follows the
methodology described below.
Stored SWP Water
During years when the City has access to SWP water in excess of 1,313 AF a portion of that water can
be stored in San Luis Reservoir for subsequent delivery in future years. However, there are limitations
on the amount of water that can be stored. The calculations that DWR uses to determine how the
maximum amount of water the City can place in storage are outlined below.
It should be noted that these calculations are the maximum amount of excess SWP water that the City
can store, and the City is limited to storing water only when there is SWP in excess of 1,313 AF.
Additionally, water stored in San Luis Reservoir can be lost due to spills or interference with SWP
operations. The values of stored SWP water shown in Figure 7-2 are based on the actual amount of
stored SWP water available to the City in 2021.
Where:
A = Available Water
T = Table A Water
B = Drought Buffer
D = Delivery Percentage
A = (T+B)D
S = Storage Amount
For deliveries from 0% to 50% the maximum storage allowed is 25% of the available water as
shown in Equation 1.
Equation 1 0 ≤ D ≤ 50%, S ≤ 0.25 x A
For deliveries from 51% to 74% the maximum storage allowed is 25% plus 1% for every
percentage point over 50% that is delivered as shown in Equation 2.
Equation 2 For 50% < D < 75%, S ≤ [(D-50%) + 0.25] x A
For deliveries 75% and over the maximum storage allowed is 50% of the available water as
shown in Equation 3.
Equation 3 For D ≥ 75%, S = 0.50 x A
Water Supply Characterization Section 6
City of Morro Bay 6-4 2020 Urban Water Management Plan
Sample Calculations:
D = 20%
Maximum Storage, S = 0.25A Equation 1
S = 0.25[(T+B)x0.20]
S = 0.25[(1,313+2,290)x0.20]
S = 0.25(721)
S = 180 AF
D = 62%
Maximum Storage, S = [(D-50%) + 0.25] x A Equation 2
S = [(D-50%) + 0.25] x [(T+B)D]
S = [(62%-50%) + 0.25] x [(1,313+2,290)0.62]
S = (0.12 + 0.25) x [(3,603)0.62]
S =.37 x 1,537.6
S = 826.5 AF
D = 85%
Maximum Storage, S = 0.50A Equation 3
S = 0.50(T+B)D
S = 0.50(1,313+2,290).85
S = 0.50(3,063)
S = 1,531 AF
Historically, the City has received about 80 percent of its domestic water supply from imported SWP
water. Currently, the City supplements imported SWP supply with groundwater from the Morro well field
treated by the brackish water reverse osmosis (BWRO) facility.
6.2.2 Groundwater
The City has a groundwater allocation of 581 AFY from the Morro Valley Basin (Groundwater Basin No.
3-41) via groundwater permits. The groundwater permits from the State Board Division of Water Rights
are provided in Appendix H.
Prior to SWP water deliveries, the City relied solely on groundwater as its primary source of water. The
Morro Valley Basin is a shallow alluvial basin which behaves similar to an underground stream. Rainfall
in the watershed percolates into the ground and flows underground to the ocean. The State Board
controls the use of groundwater determined to be riparian underflow. In 1972, the City applied for
permits to appropriate water from the Morro Valley Basin. In 1995, the State Board approved water
right permits for up to 1.2 cubic feet per second (cfs) and 581 AFY from the Morro Valley Basin.
While the City has rights to 581 AFY of groundwater pumping rights, the quality of water within the
Morro Valley Basin is poor and requires treatment to reduce nitrate levels. Due to the groundwater
requiring treatment, the City can only yield approximately 70% of the 581 AFY that the City has rights to
as available supply. With treatment taken into consideration, the City reliably has access to 407 AFY
from the Morro Valley Basin.
Water Supply Characterization Section 6
City of Morro Bay 6-5 2020 Urban Water Management Plan
Between 2016 and 2020, the City produced groundwater from the Morro Valley Basin which met from 4
percent to 25 percent of the average total demand. These numbers have varied from year to year
depending upon weather conditions, groundwater recharge rates, and groundwater blending
requirements due to groundwater quality. Table 6-2 shows the amount of groundwater pumped from
2016-2020.
Table 6-2. DWR 6-1R Groundwater Volume Pumped
GROUNDWATER TYPE LOCATION OR BASIN
NAME 2016 2017 2018 2019 2020
Brackish Groundwater
(Morro Basin)
Morro Valley Basin
(Groundwater Basin
No. 3-41)
36 AFY 106 AFY 93 AFY 101 AFY 61 AFY
Brackish water reverse osmosis
skid used to remove nitrates from
Morro Valley Groundwater
Water Supply Characterization Section 6
City of Morro Bay 6-6 2020 Urban Water Management Plan
6.2.2.1 Morro Valley Basin Groundwater Basin No. 3-41
The Morro Valley Basin encompasses approximately 1,200 acres (1.9 square miles). The basin is
bounded by the Pacific Ocean, the Morro Bay estuary, and by impermeable rock units. Most of the
basin area is within unincorporated San Luis Obispo County, with The City overlying the basin area
southwest of the narrows near Highway 1. Recharge to the basin comes primarily from seepage of
surface flows in Morro Creek and Little Morro Creek, deep percolation of precipitation, and
residential/agricultural return flows. The water supply aquifers are predominantly within alluvial deposits
drained by Morro Creek, which are comprised of gravel, sand, silt, and clay. The alluvial deposits are
typically up to 80 feet thick.
Morro Valley Basin groundwater potential pumpers include the City, Morro Bay Mutual Water Company,
a small public water system (mobile home park), and residential and agricultural overlying users. The
City pumps Morro Creek underflow from the basin with a permitted allocation of 581 AFY from the
State Board.
The perennial yield of Morro Valley Basin is estimated at 1,500 AFY. Analysis indicates during drought
conditions concurrent operation of the City’s seawater and fresh water supply wells could subject
freshwater wells to seawater intrusion. Seawater intrusion and nitrates are the predominant concerns
for water quality in this basin. In the mid-1980’s, TDS concentrations in groundwater downstream of the
narrows near Highway 1 began to exceed 1,000 mg/L seasonally due to seawater intrusion and tidal
influences. In 2007, basin TDS concentrations were typically between 400 and 800 mg/L increasing
with proximity to the coast, except for an area beneath agricultural fields in the lower valley where TDS
concentrations reached 1,000 mg/L, and nitrate concentrations reached 220 mg/L.
Constraints on water availability in this basin include physical limitations, water quality issues, and
water rights. Shallow alluvial deposits are typically more susceptible to drought impacts. For the upper
Morro Valley, water level and well capacity declines during drought limit the availability of the resource;
while in the lower valley area, seawater intrusion is the primary constraint. Elevated nitrates are a
constraint for drinking water availability at the City’s well field where production is also limited by
permitted appropriative water rights.
6.2.2.2 Groundwater Management
Groundwater management of Morro Valley Basins is not judicially designated as with the Los Osos
Basin adjudication. However, since the basin is supplied by riparian underflow, the State Board issues
water right permits for groundwater extraction, thus effectively managing groundwater resources.
Additionally, water agencies in the region manage groundwater resources through cooperative
planning, with SLOCFCWCD as the lead agency. With input from water agencies, SLOCFCWCD
updated the county’s Master Water Report (MWR) in 2012 to detail a regional water resources plan.
The analysis was divided by water planning areas (WPAs), which recognize jurisdictions that overlie
groundwater basins and interconnected watersheds in order to assess their relationship. The MWR
water management strategies are consistent with local purveyor water demand projections and planned
water supply projects. The MWR was developed with input from all interested parties including the
County’s seven cities, eight community service districts (CSDs), agricultural, developer and
environmental organizations, institutions (California Men’s Colony, Cuesta College, etc.), and a
member from each supervisorial district.
The Morro Bay WPA includes Morro Bay, the Chorro Valley Water System (California Men’s Colony,
Cuesta College, Camp San Luis Obispo (National Guard), County Operations Center/Office of
Education), and agricultural and other rural overlying users. The only groundwater supplies within the
WPA are Chorro and Morro Valley Basins. Other major supply sources in the WPA include the SWP,
desalination (City of Morro Bay), Whale Rock Reservoir, Chorro Reservoir, and recycled water. The
issues in this WPA include drought impacts to groundwater supplies and groundwater quality, plus the
availability/reliability of SWP water from year to year.
Water Supply Characterization Section 6
City of Morro Bay 6-7 2020 Urban Water Management Plan
6.2.3 Surface Water
The City does not use water directly from any surface water source. Indirectly, the City uses surface
water via the SWP and via groundwater riparian underflow.
6.2.4 Stormwater
The City does not currently have any stormwater recovery systems as a water supply source.
6.2.5 Wastewater and Recycled Water
The UWMP Act requires that the UWMP address the opportunities for development of recycled water,
including: the description of existing recycled water applications, quantities of wastewater currently
being treated to recycled water standards, limitations on the use of available recycled water, an
estimate of projected recycled water use, the feasibility of projected uses, and practices to encourage
the use of recycled water.
6.2.5.1 Past Five Years
Over the past 5 years, the City has reduced groundwater production and switched to using primarily
purchased SWP water due to groundwater overdraft, quality issues, and limited water rights.
6.2.5.2 Wastewater Collection, Treatment, and Disposal
The City, in conjunction with Cayucos Sanitary District, operates a wastewater treatment plant (WWTP)
under National Pollutant Discharge Elimination System (NPDES) Permit No.R3-2008-0065. The
WWTP employs a centralized wastewater treatment strategy in which wastewater is collected from
residences and industries throughout the City and Cayucos Sanitary District service areas and
conveyed via a wastewater collection system to the WWTP. The quantity of wastewater collected in the
City’s service area is presented in Table 6-3. The WWTP historically has served the City and the
community of Cayucos located in unincorporated San Luis Obispo County, however the WWTP is no
longer receiving wastewater flows from Cayucos and future flows will be solely from the City. In 2020
the WWTP treated a total of 1,015 AF of wastewater with 79.5% (807 AF) of flows coming from within
the City’s service area.
The WWTP historically discharges an average of 1.10 million gallons per day (MGD) (3.4 AFY). The
WWTP was designed to accommodate an average dry-weather flow of 2.06 MGD, a peak seasonal
dry-weather flow of 2.36 MGD, and a peak wet-weather flow of 6.64 MGD. Table 6-4 provides the
WWTP treatment and discharge volumes in units of AFY.
All wastewater is treated through a primary treatment process which includes screening, grit removal,
and primary sedimentation. Then, up to 1 MGD of wastewater is diverted to a secondary treatment
process which uses biofilters, a solids-contact chamber, and a secondary clarifier. The secondary
treatment process consists of parallel single-stage, high-rate, trickling filters whose combined outflow
goes to a solids contact channel and then to a secondary sedimentation tank. Flows in excess of 1
MGD receive primary treatment only before blending with secondary effluent, disinfection, and
discharge. The treated effluent from the WWTP is discharged through a 27‐inch diameter pipeline that
extends 2,700 feet offshore to an outfall within Estero Bay and subsequently the Pacific Ocean. The
City is current constructing a new wastewater treatment facility or Water Reclamation Facility.
Water Supply Characterization Section 6
City of Morro Bay 6-8 2020 Urban Water Management Plan
Table 6-3. DWR 6-2R Wastewater Collected within Service Area in 2020
WASTEWATER COLLECTION RECIPIENT OF COLLECTED WASTEWATER
NAME OF WASTEWATER
COLLECTION AGENCY
WASTEWATER VOLUME
METERED OR ESTIMATED
WASTEWATER VOLUME COLLECTED
FROM UWMP SERVICE AREA IN 2020
(AFY)
NAME OF WASTEWATER AGENCY
RECEIVING COLLECTED WASTEWATER
WASTEWATER TREATMENT
PLANT NAME
WASTEWATER TREATMENT PLANT
LOCATED WITHIN UWMP AREA
WWTP OPERATION CONTRACTED
TO A THIRD PARTY
City of Morro
Bay/Cayucos Metered 807 City of Morro Bay and
Cayucos Sanitary District
Morro
Bay/Cayucos
WWTP
Yes No
TOTAL 807
Table 6-4. DWR 6-3R Wastewater Treatment and Discharge within Service Area in 2020
2020 VOLUMES (AFY)
WASTEWATER
TREATMENT PLANT
NAME
DISCHARGE
LOCATION NAME
OR IDENTIFIER
DISCHARGE LOCATION
DESCRIPTION
WASTEWATER
DISCHARGE ID
NUMBER
METHOD OF
DISPOSAL
PLANT TREATS
WASTEWATER
GENERATED OUTSIDE
THE SERVICE AREA
TREATMENT LEVEL WASTEWATER
TREATED (AFY)
DISCHARGED
TREATED
WASTEWATER
(AFY)
RECYCLED
WITHIN SERVICE
AREA
RECYCLED
OUTSIDE OF
SERVICE AREA
INSTREAM
FLOW PERMIT
REQUIREMENT
Morro
Bay/Cayucos
WWTP
1 Lat 35, 23',11" N;
Long 120, 52', 29" W
NPDES No.
CA0047881 Ocean outfall Yes Secondary,
Disinfected - 23 1,015 1,015 0 0 0
TOTAL 1,015 1,015 0 0 0
Water Supply Characterization Section 6
City of Morro Bay 6-9 2020 Urban Water Management Plan
6.2.5.3 Recycled Water System Description
The City does not currently have a recycled water system in place.
6.2.5.4 Potential, Current, and Projected Recycled Water Uses
The City began evaluation of recycled water starting in 2016 with a Water Reclamation Facility Master
Plan (FMP). The FMP evaluated the treatment costs associated with both potable and non‐potable
recycled water options. In order to determine the best recycled water end use, the City evaluated
numerous non‐potable and potable recycled water options in the Water Reclamation Facility Plan. The
treatment costs developed in the FMP were used as an input for the alternatives analysis in the Water
Reclamation Facility Plan. The alternatives analysis in the Water Reclamation Facility Plan considered
both economic and non‐economic criteria to evaluate four recycled water options and ultimately
recommended indirect potable recharge (IPR) of groundwater at one of two injection locations in the
City. The IPR alternative was recommended in part because it has the highest potential for potable
water offset. The City then began OneWater Morro Bay to evaluate IPR along with other potable water
supply options available including desalination and groundwater without augmentation. When evaluated
against these other water supply options, IPR was recommended based on its drought resiliency and
ability to offset imported water use (i.e., SWP).
The WRF will utilize three processes to meet the virus, Giardia, and Cryptosporidium log
reduction requirements required by the Division of Drinking Water (DDW). These processes are:
• Ultrafiltration (UF).
• Reverse Osmosis (RO)
• Ultraviolet advanced Oxidation Process (UV AOP)
The City plans on injecting recycled water into the Morro Valley Basin when the WRF system is in
place. However, the City only plans on extracting additional IPR water on an as needed basis. The
City’s current permit with the SWRCB allows for extraction of 581 AFY of water from the Morro Valley
Basin. With the implementation of the IPR Project, it is envisioned that the City would be able to extract
more than 581 AFY because the City would be injecting additional water into the groundwater basin
that is not subject to the SWRCB permit extraction limits.
6.2.5.5 Actions to Exchange and Optimize Future Recycled Water Use.
As described in the previous section, the City has investigated the potential for groundwater recharge
for a potential indirect potable reuse project. Table 6-5 summarizes the City’s immediate planning efforts
to encourage and optimize recycled water use. The expected increase of recycled water use in the City
is based on the projected amount that the City will need during a consecutive drought described in
Chapter 7.
Water Supply Characterization Section 6
City of Morro Bay 6-10 2020 Urban Water Management Plan
Table 6-5. DWR 6-6R Methods to Expand Future Recycled Water Use
NAME OF ACTION DESCRIPTION PLANNED
IMPLEMENTATION YEAR
EXPECTED INCREASE OF
RECYCLED WATER USE
(AFY)1
Water Reclamation
Facility2
Groundwater Recharge (IPR)
injection into the Lower Morro
Valley Groundwater Basin.
2025 317*
TOTAL 317
*.The City is still in the process of evaluating the exact amount of water the City will be able to extract from the IRP project,
however based on preliminary hydrogeological studies this value reported is a conservative and reasonable quantity. The
most recent hydrogeologic study performed by GSI Solutions Inc. can be found on the City's website here:
https://morrobaywrf.com/wp-content/uploads/Characterization-and-Selection-of-Project-Area.pdf
1. The City plans on injecting recycled water into the Morro Valley Basin when the WRF system is in place. However, the City
only plans on extracting additional IPR water on an as needed basis.
2. Additional information on the project can be found on the City's website at https://morrobaywrf.com/documents/
6.2.6 Desalinated Water Opportunities
The City’s desalination plant was originally permitted and constructed in 1992 to provide seawater
desalination during a drought emergency. In 2009, the City’s desalination plant was expanded to treat
brackish groundwater. The two treatment trains, seawater reverse osmosis and brackish water reverse
osmosis, which historically have been able to treat 645 AFY and 581 AFY, respectively. The latter
treatment train is capable of treating the entire 581 AFY of Morro Valley Basin groundwater that the City
is permitted to extract.
In 2010 the desalination plant served as The City’s primary source of water supply for a few months
due to an extended SWP shutdown. The desalination plant is currently used on a very limited basis to
treat high‐nitrate groundwater from the Morro Valley Basin in order to supplement SWP supply. The
plant provides a source of backup and emergency water supply in case of future SWP supply
reductions or service outages. Once the City has gone through the permitting process with California
Coastal Commission and the Water Board, the plant could potentially serve as a primary source of
supply, replacing the SWP water. Currently, the City has decommissioned associated equipment due to
equipment age and needed repairs. While desalinated water is not currently used as part of the City’s
available supply, the City has maintained its permits and wells for the seawater desalination plant for
potential future use.
6.2.7 Water Exchanges and Transfers
The City does not, at this time, pursue separate water transfer or exchange opportunities with other
agencies or suppliers. Such an arrangement could occur in the future.
6.2.8 Future Water Projects
While the City constructs capital improvement projects, as needed, as part of its maintenance of
existing water supply infrastructure, these projects do not increase the City’s water supply and therefore
are not included here. However, The City plans to construct a water recycling treatment plant and
distribution system as described in Sections 6.2.5.3 through Section 6.2.5.5. The proposed water
reclamation facility is listed in Table 6-6, which summarizes future water supply projects. The City only
plans on extracting additional IPR water on an as needed basis. Therefore, the expected increase of
recycled water supplies the City has available is based on the projected amount that the City will need
during a consecutive drought, as described in Chapter 7.
Water Supply Characterization Section 6
City of Morro Bay 6-11 2020 Urban Water Management Plan
Table 6-6. DWR 6-7R Expected Future Water Supply Projects or Programs
NAME OF
FUTURE
PROJECTS OR
PROGRAMS
JOINT PROJECT
WITH OTHER
SUPPLIERS
AGENCY
NAME DESCRIPTION
PLANNED
IMPLEMENTATI
ON YEAR
PLANNED FOR
USE IN YEAR
TYPE
EXPECTED
INCREASE IN
WATER SUPPLY
TO SUPPLIER
(AFY)1
Water
Reclamation
Facility2
No
Groundwater
Recharge (IPR)
injection into the
Lower Morro
Valley
Groundwater
Basin.
2025 Multi-Dry Year 317*
*.The City is still in the process of evaluating the exact amount of water the City will be able to extract from the IRP project,
however based on preliminary hydrogeological studies this value reported is a conservative and reasonable quantity. The
most recent hydrogeologic study performed by GSI Solutions Inc. can be found on the City's website here:
https://morrobaywrf.com/wp-content/uploads/Characterization-and-Selection-of-Project-Area.pdf
1. The City plans on injecting recycled water into the Morro Valley Basin when the WRF system is in place. However, the City
only plans on extracting additional IPR water on an as needed basis.
2. Additional information on the project can be found on the City's website at https://morrobaywrf.com/documents/
6.2.9 Climate Change Effects
Future water use may be affected by climate change.
“Projections of climate change in California indicate a further intensification of wet and dry extremes
and shifting temperatures that can…affect both water use and supplies. Extreme and higher
temperatures can lead to increases in water use…Projections of more frequent, severe, and prolonged
droughts could lead to not only less surface water available, but also exacerbating ongoing stressors in
groundwater basins across the state” (California Department of Water Resources, March 2021).
Higher temperatures decrease the amount of precipitation available for groundwater recharge and from
surface water sources while increasing water use, especially for outdoor use. Reductions in future
supply due to impacts associated with climate change were based on estimates from the 2019 DWR
State Water Project Delivery Capability Report and considered as part of the projected supply
discussed in Chapter 6 and Chapter 7. Increases in future water use patterns due to climate change
factors were considered as part of the conservative demand projection provided in Chapter 4. Imported
surface water from the SWP is potentially subject to cutbacks for climatic, legal, environmental and
water quality reasons.
6.2.10 Summary of Existing and Planned Sources of Water
The City’s actual and projected supply is shown in Table 6-7 and Table 6-8.
Water Supply Characterization Section 6
City of Morro Bay 6-12 2020 Urban Water Management Plan
Table 6-7. DWR 6-8R Actual Water Supplies
Table 6-8. DWR 6-9R Projected Water Supplies
PROJECTED WATER SUPPLY
2025 2030 2035 2040 2045
WATER SUPPLY ADDITIONAL DETAIL ON
WATER SUPPLY
REASONABLY
AVAILABLE
VOLUME (AFY)
TOTAL RIGHT OR
SAFE YIELD
REASONABLY
AVAILABLE
VOLUME (AFY)
TOTAL RIGHT OR
SAFE YIELD
REASONABLY
AVAILABLE
VOLUME (AFY)
TOTAL RIGHT OR
SAFE YIELD
REASONABLY
AVAILABLE
VOLUME (AFY)
TOTAL RIGHT OR
SAFE YIELD
REASONABLY
AVAILABLE
VOLUME (AFY)
TOTAL RIGHT OR
SAFE YIELD
Purchased or Imported Water SWP 1,313 1,313 1,313 1,313 1,313
Brackish Groundwater (Morro
Basin)
Treated brackish
groundwater at RO plant 407 407 407 407 407
TOTAL 1,720 1,720 1,720 1,720 1,720
2020
WATER SUPPLY ADDITIONAL DETAIL ON WATER SUPPLY ACTUAL VOLUME (AFY) WATER QUALITY TOTAL RIGHT OR SAFE YIELD (AFY)
Purchased or Imported Water SWP 1,029 Drinking Water 1,313
Brackish Groundwater (Morro Basin) Treated brackish groundwater at RO plant 61 Drinking Water 407
TOTAL 1,090 1,720
Water Supply Characterization Section 6
City of Morro Bay 6-13 2020 Urban Water Management Plan
6.3 Energy Intensity
Per Water Code Section 10631.2.(a), the City must include information that could be used to calculate
the energy intensity of their water service. The City’s water service energy intensity was estimated
based on readily available electrical billing data and water production data. Billing records from July
2020 through July 2021 provided the annual total kilowatt hours used in the City’s service area. Energy
usage is tracked by the City in the following categories: extracting and diverting water from groundwater
wells, treating the City’s supplies, and distributing potable supplies. The City’s average water service
energy intensity was 368.4 kilowatt hours per AF (kWh/AF), as shown in Table 6-9.
Table 6-9. Energy Reporting – Water Supply Process Approach (DWR Table O-1A)
Start Date for Reporting Period: 07/06/2020
End Date for Reporting Period: 07/07/2021
URBAN WATER SUPPLIER OPERATIONAL CONTROL
WATER MANAGEMENT PRACTICES NON-CONSEQUENTIAL
HYDROPOWER
EXTRACT
AND
DIVERT
PLACE IN
STORAGE CONVEYANCE TREATMENT DISTRIBUTION TOTAL
UTILITY HYDROPOWER NET UTILITY
Total
Volume of
Water
Entering
Process
(AF)
64 N/A N/A 64 1,056 1,056 N/A 1,056
Energy
Consumed
(kWh)
90,544 N/A N/A 116,354 182,101 388,9
99 N/A 388,999
ENERGY
INTENSITY
(KWH/AF)
1,416.3 N/A N/A 1,820.0 172.4 368.4 N/A 368.4
7-1
7
URBAN WATER MANAGEMENT PLAN
Water Service Reliability and Drought Risk Assessment
This section considers the City’s water supply reliability during normal,
single dry, and multiple dry water years over the planning horizon. A
Drought Risk Assessment of the next five years is also included.
Water service reliability corresponds to an urban water supplier’s
ability to meet projected future customer demand under a variety
of reasonably expected conditions. The supply reliability
assessment discusses factors (i.e., climatic, environmental, water
quality and legal) that could potentially limit the expected quantity
of water available from the City’s current and projected sources of
supply through 2045. Multiple drought scenarios are considered
and the quantitative impacts of the aforementioned factors on
water supply and demand are discussed, as well as possible
methods for addressing these issues. This chapter also includes
the drought risk assessment (DRA), which provides a quick
snapshot of the anticipated surplus or deficit if a drought were to
occur in the next five years.
IN THIS SECTION
• Water Service
Reliability
Assessment
• Drought Risk
Assessment
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-2 2020 Urban Water Management Plan
Evaluating the water service reliability is critical for water management as it can help identify potential
problems before they happen. Water managers can then take proactive steps to mitigate shortages by
encouraging water use efficiency, implementing the WSCP, securing new water supplies, and/or
investing in infrastructure.
This section describes that the water service reliability assessment and DRA results indicate that no
water shortages are anticipated within the next 25-years under normal, single dry water years, and
multiple dry water years.
7.1 Water Service Reliability Assessment
The City’s 2020 UWMP water service reliability assessment compares total projected water supply and
demands over the next 25 years in five-year increments under normal, single dry water year, and five-
year consecutive dry period. This section presents the reliability assessment for the City’s service area.
7.1.1 Constraints on Water Sources
7.1.1.1 SWP Constraints
Climactic and environmental factors are the main constraint on the City’s SWP supply. Climatic factors
affecting the reliability of a given water supply system are generally a function of seasonal precipitation
and runoff characteristics. As such, limited recharge and/or drought conditions pose threats to
availability of SWP supplies.
California has experienced below-average precipitation and runoff since approximately 2006, resulting
in reduced storage in SWP reservoirs. In response, DWR has continued to limit SWP allocations to
contractors. As described in Chapter 6 Section 2.1, the City’s “drought buffer” allocation has minimized
the effects of reduced Table A allocations. The City is entitled to a maximum SWP delivery allocation of
1,313 AFY with a 100% SWP allocation; however, when DWR’s SWP allocations are lower than 100%,
the City can use its 174 percent (2,290 AFY of buffer) “drought buffer” to receive its full 1,313 AFY
allocation when the SWP can deliver at least 36.44 percent of contracted allocations. SWP allocations
lower than 36.44 percent result in reduced maximum deliveries as demonstrated in Table 7-1.
For example, if Table A allocations were 50% of contracted amounts, without a drought buffer the City
would receive 657 AFY of water considering the City’s subcontracts, and with a drought buffer of 1,313
AF the City would receive an additional 656 AFY for a total of 1,313 AFY. In any given year, however,
under its current contracts the City’s total SWP deliveries cannot exceed 1,313 AFY and the amount that
can be stored in San Luis Reservoir follows the methodology described in the following Section.
Available SWP to City =
If: (Table A Allocation + Drought Buffer)*(Annual Allocation %) > Table A Allocation
Then: Available SWP to City = Table A Allocation
Available SWP to City =
If: (Table A Allocation + Drought Buffer)*(Annual Allocation %) < Table A Allocation
Then: Available SWP to City = (Table A Allocation + Drought Buffer)*(Annual Allocation %)
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-3 2020 Urban Water Management Plan
Example for 50% Annual Allocation
(1,313 AFY + 2,290 AFY)*(50%) > 1,313 AFY
1,802 AFY > 1,313 AFY
Available SWP to City = 1,313 AFY
Example for 20% Annual Allocation
(1,313 AFY + 2,290 AFY)*(20%) < 1,313 AFY
721 AFY < 1,313 AFY
Available SWP to City = 721 AFY
Table 7-1: SWP Water Available to the City Based on Annual Allocation
ANNUAL ALLOCATION % SWP WATER AVAILABLE TO CITY (AFY)
100% 1313
90% 1313
80% 1313
70% 1313
60% 1313
50% 1313
40% 1313
38% 1313
37% 1313
36% 1297
30% 1081
20% 721
10% 360
The City’s water supply from the SWP also has the potential to be affected by environmental issues,
particularly involving the Delta Smelt in the Sacramento-San Joaquin Delta issues. SWP pumping
capacities were reduced as a result of the May 2007 federal court ruling to protect Delta smelt.
However, as mentioned previously, the City has a drought buffer which helps protect the City from
reduced SWP supplies. Therefore, even when SWP supplies are decreased, the City’s excess SWP
entitlement provides a buffer so that contracted volumes to water purveyors, like the City, may still be
provided in full. However, it is possible that the Delta’s fragile ecosystem, along with severely
decreased precipitation patterns, may affect SWP supply reliability for the City to a greater degree at
some point in the future (Fugro Consultants, April 2016).
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-4 2020 Urban Water Management Plan
7.1.1.2 Groundwater Constraints
Water quality of Morro Valley Basin is the main constraint on groundwater production. Water Quality of
the Morro Valley Basin has been of concern in regard to high concentrations of Nitrate (NO3) and
Salinity (TDS). Recent reports indicate upstream fertilizer runoff by agricultural land use has been found
to be the leading cause of nitrate contamination in the groundwater basin leading to concentrations as
high as 220 mg/L. During drought years, the low groundwater elevation leads to potential seawater
intrusion issues threatening the basin groundwater quality. Studies have found that TDS concentrations
have ranged from 400 to 1000 mg/L in the Morro Valley Basin. Prior to public distribution, the City treats
groundwater yield from the Morro well field for both nitrate and TDS at the BWRO Facility and then
finished water is sent to the Kings Tank. While the City has pumping rights to 581 AFY of groundwater
from the Morro Valley Basin, since the groundwater must first go through RO treatment at the BWRO
Facility, the City can only yield approximately 407 AFY (70% of the 581 AFY that the City has pumping
rights to) due to losses during treatment. During drought years the City has potential to improve the
treatment efficiency through operational changes and/or blending modifications. To be conservative
when analyzing the City’s water service reliability and assessing drought risk, available groundwater is
reported as 407 AFY which assumes the typical 70% treatment efficiency.
7.1.2 Year Type Characterization
7.1.2.1 Types of Years
This section considers the City’s water supply reliability during three climate-related water scenarios, or
water year types: average year, single-dry year, and five-consecutive dry years.
These water year types are defined by DWR as follows:
• Average Year: The average or normal year is a year or an averaged range of years in the
historical sequence that most closely represents mean rainfall and recharge levels and patterns.
• Single-Dry Year: This is defined as the year with the minimum useable supply. The supply
quantities for this condition are derived from the minimum historical annual yield.
• Five-Consecutive Year Drought: The driest five-year historical sequence for the supplier, which
may be the lowest average water supply available for five years in a row. Water systems are more
vulnerable to these droughts of long duration because they deplete water storage reserves in local
and state reservoirs and in groundwater basins. The supply quantities for this condition are derived
from the actual supplies available during the minimum historical five-year running average yields.
7.1.2.2 Sources for Water Data
7.1.2.2.1 State Water Project
DWR periodically compiles a report on the supply reliability of SWP water under current and projected
future water conditions. DWR’s 2019 Delivery Reliability Report describes the historical and projected
deliveries to the State Water Contractors during normal years and over various drought-year periods.
Although the relative percent deliveries included in the 2019 Delivery Reliability Report apply
specifically to State Water Contractors allocations, these percentages correspond to percent reduction
that the City may experience in drought conditions. Table A allocations from the 2019 Delivery
Reliability Report projected an average delivery of 58% (California Department of Water Resources,
2020). The 58% allocation combined with the City’s drought buffer will allow the City to receive 1,313
AFY under average year conditions. Factoring in this projected average, 2019 was selected as a
representative average year because the City’s full allocation of 1,313 AFY was available due to their
drought buffer as described in Section 7.1.1.1. SWP supplies for single dry year deliveries were
calculated using the minimum historical Table A allocation from 2000-2020. SWP supplies for
consecutive dry years were calculated using the minimum 5-year average historical Table A allocations
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-5 2020 Urban Water Management Plan
from 2000-2020, however future conditions may alter supply availability assumptions. As additional
climate change data becomes available the water service reliability assessment and the DRA will be
updated in future iterations of the UWMP. Since SWP water makes up largest share of the City’s water
supply, the base years for SWP were also used for the other water supplies.
Table 7-2. DWR 7-1R Basis for Water Year Data (Reliability Assessment)
SWP
YEAR TYPE BASE YEAR
AVAILABLE SUPPLY IF YEAR TYPE REPEATS
VOLUME AVAILABLE (AFY) PERCENT OF AVERAGE
SUPPLY
Average Year 2019 1,313 100%
Single-Dry Year 2014 180 14%
Consecutive Dry Years 1st Year 2012 1,313 100%
Consecutive Dry Years 2nd Year 2013 1,261 96%
Consecutive Dry Years 3rd Year 2014 180 14%
Consecutive Dry Years 4th Year 2015 721 55%
Consecutive Dry Years 5th Year 2016 1,313 100%
7.1.2.2.2 Morro Valley Basin Groundwater
The City has access to groundwater supply from the Morro Valley Basin (Groundwater Basin No. 3-41).
The City has 581 AFY of water from the Morro Valley Basin allocated to them via groundwater permits.
The groundwater permits from the California State Water Resources Control Board (SWRCB) Division
of Water Rights are provided in Appendix H.
While the City has rights to 581 AFY of groundwater pumping rights, the quality of water within the
Morro Valley Basin is poor and requires treatment to reduce nitrate levels. Due to the groundwater
requiring treatment, the City can only yield approximately 70% of the 581 AFY that the City has rights to
as available supply. With treatment taken into consideration, the City reliably has access to 407 AFY
from the Morro Valley Basin.
However, it is important to note that the City has made and continues to make planning efforts to limit
its groundwater pumping to within sustainable amounts due to the threat of seawater intrusion.
Therefore, as described in Chapter 6, the City intends to develop a Water Reclamation Facility to utilize
recycled water to replenish the City’s local groundwater basin through IPR in order to enhance
groundwater supply reliability.
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-6 2020 Urban Water Management Plan
Table 7-3. DWR 7-1R Basis for Water Year Data (Reliability Assessment)
GROUNDWATER
YEAR TYPE BASE YEAR
AVAILABLE SUPPLY IF YEAR TYPE REPEATS
VOLUME AVAILABLE (AFY) PERCENT OF AVERAGE
SUPPLY
Average Year 2019 407 100%
Single-Dry Year 2014 407 100%
Consecutive Dry Years 1st Year 2012 407 100%
Consecutive Dry Years 2nd Year 2013 407 100%
Consecutive Dry Years 3rd Year 2014 407 100%
Consecutive Dry Years 4th Year 2015 407 100%
Consecutive Dry Years 5th Year 2016 407 100%
7.1.3 Water Service Reliability
Results of the water supply and demand analysis for normal, single dry, and five-year consecutive
droughts are shown in the following tables. The City expects to meet demands under all water year
scenarios as shown in Table 7-4 through Table 7-6 and will continue to promote water conservation to
ensure reliability and resiliency.
7.1.3.1 Water Service Reliability – Normal Year
The normal year water demands through 2045 are estimated based on the per capita water use targets
summarized in Chapter 4 and populations presented in Chapter 3. The projected normal water year
water supply and demand projections are provided in Table 7-4. The available supplies during a normal
year represent 58% SWP allocation, which allows the City to receive the full 1,313 AFY of SWP water
allocated to the City, as described in Section 7.1.1.1, as well as 100% of the City’s groundwater
entitlement (assuming 70% efficiency in groundwater treatment).
Table 7-4. DWR 7-2R Normal Year Supply and Demand Comparison
2025 2030 2035 2040 2045
Supply Totals
From Table 6-9R 3,151 3,151 3,151 3,151 3,151
Demand Totals
From Table 4-3R 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 1,818 1,785 1,751 1,706 1,706
7.1.3.2 Water Service Reliability – Single Dry Year
The projected single dry year water demands through 2045 are based on the minimum SWP allocation
which occurred in 2014. For years 2025 to 2045, the supply numbers include the addition of 407 AFY
from groundwater production with treatment, as well as stored SWP. As shown in Table 7-5, the City’s
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-7 2020 Urban Water Management Plan
supplies meet projected demands even during single-dry year conditions. Without the supplemental
supply from groundwater and stored SWP water, the City can meet their demands by implementing
additional conservation measures, implementing the WSCP, or utilizing IPR water as described in
Chapter 6.
Table 7-5. DWR 7-3R Single Dry Year Supply and Demand Comparison
2025 2030 2035 2040 2045
Supply Totals
From Table 6-9R 1,702 1,702 1,702 1,702 1,702
Demand Totals
From Table 4-3R 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 369 336 302 257 257
1. Supply includes assumes stored SWP at the beginning of year 2025 is equivalent to stored SWP available to the City in
2021
7.1.3.3 Water Service Reliability – Five Consecutive Dry Years
The projected consecutive dry year water demands through 2045 are based on the minimum 5-year
average SWP allocations which occurred in years 2012-2016. The anticipated supply decrease during
a multiple dry year period, compared to a normal year, is based on the actual water supply availabilities
during the identified base years. All years include 407 AFY of groundwater as part of supply. During the
third consecutive dry year, 1,115 AFY of stored SWP will be delivered from storage in addition to any
available SWP and the baseline groundwater supply of 407 AFY in years 2025-2045. Because the City
has the ability to store their unused SWP allocation in the San Luis Reservoir for later use during dry
years, they can leverage this supply to meet demand when needed.
During the fourth consecutive dry year in 2045, 317 AFY of water from the IPR project (described in
Chapter 6) will be pumped in addition to the baseline groundwater supply of 407 AFY in order to meet
demands. As shown in Table 7-6 and Figure 7-1, the City’s supplies will meet the projected demands
even during consecutive dry year conditions when supplemental supplies from groundwater and stored
SWP are included. Without the supplemental supply from stored SWP or additional groundwater
through IPR, the City can also adapt to reduced supplies by implementing conservation and/or the
WSCP. Figure 7-1 shows which supply would be utilized to meet demands during a 5-year consecutive
drought-period if a five-consecutive year drought were to occur in 2045. Supply used to meet demands
is characterized as supplies shown below the demand line in Figure 7-1 in order of supply listed from
bottom to top. For example, in the 3rd consecutive dry year the City envisions using all available SWP
water first, then switching to available stored state water, and finally utilizing groundwater to meet any
additional demands if available stored state water were to be depleted. In a drought year such as the
4th consecutive dry year, shown in Figure 7-1, the City may pump IPR water on an as needed basis to
meet demands.
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-8 2020 Urban Water Management Plan
Figure 7-1: Water Service Reliability - Five Consecutive Dry Years
1,313 1,261
180
721
1,313
1,431
1,299
1,115 -
-
407
407
407
407
407
317
3,151
2,967
1,702
1,445
1,720
1,445 1,445
1,445 1,445 1,445
-
500
1,000
1,500
2,000
2,500
3,000
3,500
Consecutive Dry
Years 1st Year
Consecutive Dry
Years 2nd Year
Consecutive Dry
Years 3rd Year
Consecutive Dry
Years 4th Year
Consecutive Dry
Years 5th YearAFYMultiple Dry Years Supply and Demand Comparison for 2045
State Water Stored State Water Groundwater
IPR Supplies Available Demand
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-9 2020 Urban Water Management Plan
Table 7-6. DWR 7-4R Multiple Dry Years Supply and Demand Comparison
2025 2030 2035 2040 2045
First Year
Supply Totals 3,151 3,151 3,151 3,151 3,151
Demand Totals 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 1,818 1,785 1,751 1,706 1,706
Second Year
Supply Totals 2,967 2,967 2,967 2,967 2,967
Demand Totals 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 1,634 1,601 1,567 1,522 1,522
Third Year
Supply Totals 1,702 1,702 1,702 1,702 1,702
Demand Totals 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 369 336 302 257 257
Fourth Year
Supply Totals 1,445 1,445 1,445 1,445 1,445
Demand Totals 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 112 79 45 0 0
Fifth Year
Supply Totals 1,720 1,720 1,720 1,720 1,720
Demand Totals 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 387 354 320 275 275
Sixth Year
Supply Totals 1,720 1,720 1,720 1,720 1,720
Demand Totals 1,333 1,366 1,400 1,445 1,445
DIFFERENCE: 387 354 320 275 275
1. Supply includes 407 AFY of Morro Valley Basin groundwater as well as SWP water.
2. Stored SWP was assumed to be equal to the quantity of stored SWP water available to the City at the beginning of
2021 of 1,431 AFY.
3. During the fourth consecutive dry year in 2045, 317 AFY of groundwater will be pumped via the IPR Project in addition to
the baseline supply of 407 AFY.
7.1.4 Descriptions of Management Tools and Options
The City is currently working on a WRF to create a local and drought-resistant water supply. A key step
to reducing imports will be to bolster local groundwater reliability by creating a seawater intrusion
barrier and enhancing recharge to the groundwater basin. Additionally, improving water conservation
and utilizing recycled water sources will allow the City to reduce its reliance on imported SWP
demands. Additional information regarding the City’s water conservation efforts is available in Chapter
8 and Appendix G.
7.2 Drought Risk Assessment
New to the 2020 UWMP, CWC Section 10635 (b) now requires a DRA. The DRA provides a quick
snapshot of the anticipated surplus or deficit if a five-consecutive year drought were to occur in the next
five years. The DRA can be modified or updated outside of the UWMP five-year plan cycle, so a
description of the data, methodology, and basis for shortage conditions must be included in this 2020
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-10 2020 Urban Water Management Plan
UWMP. The DRA evaluates each water supply’s reliability and compares available water supplies and
projected demands during a five-consecutive dry years scenario. This short-term analysis can help
water suppliers foresee undesired risks, such as upcoming shortages, and provide time to evaluate and
implement the necessary response actions needed to mitigate shortages in a less impactful manner to
the community and environment. If demands cannot be met by the expected available supply, shortage
response actions from the City’s WSCP may be implemented. Details about the City’s WSCP are
provided in Chapter 8 and Appendix G.
7.2.1 Data, Methods, and Basis for Water Shortage Condition
The data, methods, and basis for a water shortage condition were identified using the DRA tool
developed by DWR. The DRA looks at historical consumption data by customer class, populated from
billing records, and historical supply data by source from production reports. Based on this data,
historical consumption was projected based on population growth and was compared to the historical
production during the consecutive dry base years (2012-2016). The drought risk assessment is based
off historical data, however future conditions may alter supply availability assumptions. As additional
climate change data becomes available the DRA will be updated in future iterations of the UWMP.
7.2.2 DRA Water Source Reliability
As described previously, the City does not anticipate any supply shortages within the next five years as
shown in Table 7-7.
7.2.3 Total Water Supply and Use Comparison
Table 7-7 shows the City’s projected supplies and demands if there are five consecutive dry years from
2021-2025. The City will be able to meet demand by utilizing their stored SWP water to address any
deficits in the next 5 years. The City has the ability to store their unused SWP allocation in the San Luis
Reservoir for later use during dry years. The City had 1,431 AFY of stored SWP water at the start of
2021 and will need to utilize stored SWP water if there is a five consecutive dry years starting in 2021.
Figure 7-2 shows supply, including stored SWP water, meeting the projected demand if the drought
continues. Stored SWP calculations account for the framework that DWR has for storing SWP in San
Luis Reservoir.
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-11 2020 Urban Water Management Plan
Figure 7-2. 2021–2025 Drought Risk Assessment, Supply and Demand Projections
1,313 1,261
180
721
1,313
1,431 1,606
1,680 624
60
407
407
407
407 407
3,151
3,274
2,267
1,752 1,780
1,138
1,187 1,236 1,285 1,334
-
500
1,000
1,500
2,000
2,500
3,000
3,500
2021 2022 2023 2024 2025Available Supply (AFY)Drought Risk Assessment
State Water Stored State Water Groundwater Supplies Available Demand
Water Service Reliability and Drought Risk Assessment Section 7
City of Morro Bay 7-12 2020 Urban Water Management Plan
Table 7-7. DWR 7-5 Five-Year Drought Risk Assessment to Address Water Code Section 10635(b)
2021
Gross Water Use 1,138
Total Supplies 3,151
Surplus/Shortfall without WSCP Action 2,013
Planned WSCP Actions (Use Reduction and Supply Augmentation)
WSCP (Supply Augmentation Benefit) 0
WSCP (Use Reduction Savings Benefit) 0
Revised Surplus/Shortfall 2,013
Resulting Percent Use Reduction from WSCP Action 0%
2022
Gross Water Use 1,187
Total Supplies 3,274
Surplus/Shortfall without WSCP Action 2,087
Planned WSCP Actions (Use Reduction and Supply Augmentation)
WSCP (Supply Augmentation Benefit) 0
WSCP (Use Reduction Savings Benefit) 0
Revised Surplus/Shortfall 2,087
Resulting Percent Use Reduction from WSCP Action 0%
2023
Gross Water Use 1,236
Total Supplies 2,267
Surplus/Shortfall without WSCP Action 1,031
Planned WSCP Actions (Use Reduction and Supply Augmentation)
WSCP (Supply Augmentation Benefit) 0
WSCP (Use Reduction Savings Benefit) 0
Revised Surplus/Shortfall 1,031
Resulting Percent Use Reduction from WSCP Action 0%
2024
Gross Water Use 1,285
Total Supplies 1,752
Surplus/Shortfall without WSCP Action 467
Planned WSCP Actions (Use Reduction and Supply Augmentation)
WSCP (Supply Augmentation Benefit) 0
WSCP (Use Reduction Savings Benefit) 0
Revised Surplus/Shortfall 467
Resulting Percent Use Reduction from WSCP Action 0%
2025
Gross Water Use 1,334
Total Supplies 1,780
Surplus/Shortfall without WSCP Action 446
Planned WSCP Actions (Use Reduction and Supply Augmentation)
WSCP (Supply Augmentation Benefit) 0
WSCP (Use Reduction Savings Benefit) 0
Revised Surplus/Shortfall 446
Resulting Percent Use Reduction from WSCP Action 0%
1. This meets DWR requirements and assessment of actual 2021 conditions and potential future dry conditions will be
included in the Annual Assessment.
8-1
8
URBAN WATER MANAGEMENT PLAN
Water Shortage Contingency Plan
The WSCP is a detailed plan for how the City intends to predict and respond
to foreseeable and unforeseeable water shortages. A water shortage occurs
when the water supply is reduced to a level that cannot support typical
demand at any given time or reduction in demand is otherwise needed.
The WSCP is used to provide guidance to the City, staff, and the
public by identifying anticipated shortages and response actions
to allow for efficient management of any water shortage with
predictability and accountability. The WSCP is a detailed proposal
for how the City intends to act in the case of an actual water
shortage condition. The WSCP is not intended to provide absolute
direction but rather to provide options to manage water shortages.
Official water shortage declarations by the City may include any
combination of components described in the WSCP.
IN THIS SECTION
• Summary of the
Plan
Water shortages can be triggered by a hydrologic limitation in supply (i.e., a prolonged
period of below normal precipitation), limitations or failure of supply and treatment
infrastructure, compliance with State mandates for water use efficiency, or a combination
of conditions. Hydrologic or drought limitations tend to develop and abate more slowly,
whereas infrastructure failure tends to happen quickly and relatively unpredictably.
Water supplies may be interrupted or reduced significantly in several ways, such as
during a drought that limits supplies, an earthquake that damages water delivery or
storage facilities, a regional power outage, or a toxic spill that affects water quality.
Water Shortage Contingency Plan Section 8
City of Morro Bay 8-2 2020 Urban Water Management Plan
This WSCP describes the following:
Water Supply Reliability Analysis: Summarizes the City’s water supply analysis and reliability and
identifies the key issues that may trigger a shortage condition.
Annual Water Supply and Demand Assessment Procedures: Describes the key data inputs,
evaluation criteria, and methodology for assessing the system’s reliability for the coming year and the
steps to formally declare any water shortage levels and response actions.
Six Standard Shortage Levels: Establishes water shortage levels to clearly identify and prepare for
shortages.
Shortage Response Actions: Describes the response actions that may be implemented or considered
for each level to reduce gaps between supply and demand as well as minimize social and economic
impacts to the community.
Communication Protocols: Describes communication protocols under each level to ensure
customers, the public, and local government agencies are informed of shortage conditions and
requirements.
Compliance and Enforcement: Defines compliance and enforcement actions available to administer
demand reductions.
Legal Authority: Lists the legal documents that grant the City the authority to declare a water shortage
and implement and enforce response actions.
Financial Consequences of WSCP Implementation: Describes the anticipated financial impact of
implementing water shortage levels and identifies mitigation strategies to offset financial burdens.
Monitoring and Reporting: Summarizes the monitoring and reporting techniques to evaluate the
effectiveness of shortage response actions and overall WSCP implementation. Results are used to
determine if shortage response actions should be adjusted.
WSCP Refinement Procedures: Describes the factors that may trigger updates to the WSCP and
outlines how to complete an update.
Special Water Features Distinctions: Defines considerations and definitions for water use for
decorative features versus pools and spas.
Plan Adoption, Submittal, and Availability: Describes the WSCP adoption process, submittal, and
availability after each revision.
The WSCP is a standalone document that can be modified as needed and is included as Appendix G.
9-1
9
URBAN WATER MANAGEMENT PLAN
Demand Management Measures
This chapter provides a comprehensive description of the water
conservation programs that the City has implemented for the past five
years, is currently implementing, and plans to implement in order to meet
the 2020 urban water use reduction targets.
The section of the CWC addressing Demand Management
Measures (DMMs) was significantly modified in 2014, based on
recommendations from the Independent Technical Panel (ITP) to
the legislature. The ITP was formed by DWR to provide
information and recommendations to DWR and the Legislature on
new DMMs, technologies and approaches to water use efficiency.
The ITP recommended, and the legislature enacted, streamlining
the requirements from the 14 specific measures reported on in the
2010 UWMP to six more general requirements plus an “other”
category for measures agencies implemented in addition to the
required elements.
IN THIS SECTION
• Existing Demand
Management
Measures
• Reporting
Implementation
• Future Requirement
The required measures are summarized in Table 9-1. The City actively promotes public
awareness and education of water supply sources and the public’s role in conserving
water and protecting shared resources. The City is committed to implementing cost
effective programs that will increase water use efficiency throughout the service area.
Demand Management Measures Section 9
9-1
Table 9-1. Demand Management Measures
MEASURE
1 Water waste prevention ordinances
2 Metering
3 Conservation pricing
4 Public education and outreach
5 Programs to assess and manage distribution system real loss
6 Water conservation program coordination and staffing
Additional DMM implementation information is provided in the following sections.
9.1 Existing Demand Management Measures for Retail
Demand management is an integral part of sustainably managing water resources in California.
Implementing water use DMMs that help lower demands can improve the water service reliability and
help meet state and regional water conservation goals. Consistent with the requirements of the CWC,
this section describes the demand measurement measures from Table 9-1 that have been
implemented in the past five years and will continue to be implemented into the future in order to meet
the City’s 2020 water use targets pursuant to CWC Section 10608.20.
The City recognizes that using water efficiently and minimizing water waste is an integral component of
an effective water management strategy and is committed to providing education, tools, and incentives
to help its customers understand and manage their water use. Water demand has already shown
significant decline in the City’s service area in recent years and the City’s water demand in 2020 was
90 GPCD which exceeds the 2020 SB X7-7 target of 116 GPCD.
9.1.1 Water Waste Prevention Ordinances
According to the 2020 UWMP Guidebook, a water waste ordinance explicitly states the waste of water
is to be prohibited. The ordinance may prohibit specific actions that waste water, such as excessive
runoff from landscape irrigation, or use of a hose outdoors without a shut off nozzle. A water waste
prevention ordinance is in place at all times and is not dependent on a water shortage for
implementation. Executive Order B-37-16 “Making Water Conservation a California Way of Life”
directed State agencies to update temporary emergency water restrictions and transition to permanent,
long-term improvements in water use by taking actions and included using water more wisely and
eliminating water waste.
As detailed in Chapter 8 and Appendix G, the City restricts water waste through its municipal code
ordinance which lists the prohibited uses of water supplied by the City and defines water waste. During
water supply shortages, the City enforces these regulations through two processes. The code
enforcement process and the Water Division work order process. If a code enforcement complaint is
received it is logged and investigated. The Public Works Director has the ability after providing written
warning to terminate water service. Additionally, a penalty can be assessed for excessive water use. If
a complaint is received directly by the Water Division a work order is issued. Water Division staff then
investigate the issue and if an actual water waste incident occurs, the case is forwarded to code
enforcement.
City of Morro Bay 9-2 2020 Urban Water Management Plan
The City Council may impose water rationing requirements as it deems appropriate in accordance with
the municipal code. The City will declare a water shortage emergency as the City Council deems
necessary and will coordinate with the County of San Luis Obispo and neighboring cities for the
possible proclamation of a local emergency.
9.1.2 Metering
The City has fully implemented metering of its water system. The City requires that all long-term and
short-term water connections be metered and maintains metering accuracy utilizing its meter
replacement schedule. Meters are read once a month and are replaced if broken or unreadable.
Additionally, the City flags zero read meters each month and checks them to ensure they are working
correctly. While the City does not currently have smart meters, they may be considered in the future.
9.1.3 Conservation Pricing
According to the 2020 UWMP Guidebook, a conservation pricing structure is always in place and is not
dependent on a water shortage for implementation. In addition, rates cannot be seen as penalties for
excessive water use. Conservation pricing is designed to discourage wasteful water habits and
encourage conservation. The City has fully implemented conservation pricing with its tiered water rate
schedule. Customer water meters determine volumetric water use and customers are billed in
accordance with the water rate structure. The tiered water rate schedule (higher unit cost with
increased consumption) encourages water conservation. Water rates are available for customer review
on the City’s website (https://www.morro-bay.ca.us/97/Water-Sewer-Services).
9.1.4 Public Education and Outreach
The City implements an active conservation outreach program and raises awareness about water
conservation through advertising, press releases, and media events and provides its customers with a
water usage comparison on their water bills. Additionally, the City’s website
(www.morrobayca.gov/waterconservation) provides information related to programs, rebates, water
saving tips and announcements about upcoming events. The City’s rebate program was expanded in
July 2015 to include Cash for Grass, rain barrel, smart irrigation controller, and irrigation retrofit rebates.
The City also benefits from outreach programs provided through other neighboring agencies.
The City incorporates conservation minded articles routinely in its utility newsletters, public
conservation notices, announcements at public meetings, and television advertisements on the public
access channel. Additionally, the City provides water conservation materials to the local schools and at
the Morro Bay Community Library. During severely restricted water supply conditions, the City provides
restaurants with signage to only provide water upon request and provides hotels with "cling" stickers
with a water conservation message for the bathroom mirrors.
9.1.5 Programs to Assess and Manage Distribution System Real Losses
The City recognizes the need to optimize local water resources, minimize the need for imported water,
and discourage wasteful practices. The City conducts water audits, leak detection, and repairs on an
ongoing basis. Through metering, the City closely monitors water production and consumption, and
investigates any unaccounted-for water to determine water loss on a monthly basis. The City also
began using the AWWA water audit software in 2016 to aid in monitoring system losses.
City of Morro Bay 9-3 2020 Urban Water Management Plan
9.1.5.1 Construction Water Meters
The City has a program in which contractors are issued water meters by the City for use during
construction. The contractors are required to use non-potable water during construction, as recorded by
the issued water meters.
9.1.5.2 System Water Audits, Leak Detection
The City implements this program by conducting audits of water production and delivery records to
determine any losses within the distribution/transmission system. By comparing the production amount
and total deliveries to customers, an overall water balance is calculated to identify possible meter
problems or to detect leaks. City staff actively determine the sources of water loss though the system
and prioritize system repairs and replacements.
9.1.5.3 Leak Repair
The City's field staff regularly watches for water waste and leaks then notifies and works with
customers to address the situation. Supervisors, customer service staff, meter readers, and the
flushing/sampling crew inspect customer usage routinely for anomalies. Incidents of water waste are
investigated and recommendations for correction are provided. Water sources are regulated and can
be disconnected in cases of excessive leakage and/or facilities failure.
9.1.5.4 Pipeline Replacement
The City replaces pipelines on an as needed basis when leaks or insufficient pipelines are identified
which has reduced pipeline water losses.
9.1.6 Water Conservation Program Coordination and Staffing Support
The City does not engage a designated Water Conservation Coordinator, but the job is fulfilled through
the staffing in the City’s Public Works Department. The City has designated the Public Works Director
as the acting Water Conservation Coordinator and additional staff members in the department assist
the Director in these duties.
9.1.7 Other Demand Management Measures
9.1.7.1 Residential Plumbing Retrofit
The City has been implementing this program through its retrofit upon sale ordinance, which requires
sellers of residential properties in the City to retrofit existing toilets, faucets, and showerheads with
aerators and low flow equipment prior to sale.
9.1.7.2 High Efficiency Washing Machine Rebate Program
Each residential address in the City is eligible for a rebate for the replacement of a standard or high
water use washing machine with an approved energy efficient unit. Rebate applications can be found
on the City’s website and rebates are available in the amount of $100. The City’s program began in
2015 and has provided 149 rebates totaling $14,900.
City of Morro Bay 9-4 2020 Urban Water Management Plan
9.1.7.3 Residential Ultra-Low-Flush Toilet Replacement Programs
The City implements this rebate program as an incentive to replace existing standard flush toilets with
ultra-low-flush toilets in single and multi-family residences. Rebates of up to $100 per retrofitted
bathroom are provided to participants and a building inspector will need to inspect the property to verify
the retrofit was done in order to receive the rebate. Compensation is limited to dual flush toilets.
Applications can be found on the City’s website. The City’s program began in 2015 and has replaced
171 toilets for a total rebate amount of $17,100.
9.1.7.4 Cash for Grass Program
The City offers property owners a rebate program to help convert water-thirsty grass to water efficient
landscaping at a rate of $0.50 per square foot. The minimum rebate amount is $100 (200 square feet of
grass removed), and the maximum rebate amount offered is $500 (1,000 square feet or more
removed). Applications can be found on the City’s website or picked up in person at the Public Works
office. The City’s program began in 2015 and has removed 26,021 square feet of turf for 30 property
owners. Rebates resulted in a total of $9,978 to property owners who elected to participate in the
program.
9.1.7.5 Irrigation retrofit Rebate Program
The City offers a rebate incentive for homeowners to convert overhead sprinklers to drip irrigation.
Customers will receive up to $0.25 per square foot of removed overhead sprinkler, with a minimum
area removed of 200 square feet ($50) and a maximum of 400 square feet ($100). Rebate applications
can be found on the City’s website or picked up at the Public Services office. The City’s program began
in 2015 and has removed 1,400 square feet of overhead sprinklers resulting in a total rebate amount of
$200 for two residents.
9.1.7.6 Smart Irrigation Controller Rebate Program
The City offers a rebate of up to $100 for customers who purchase irrigation controllers that
automatically adjust irrigation scheduling based on the site and weather conditions. These controllers
stop irrigating when it rains and applies water when it is dry and will automatically cycle and soak to
reduce runoff on slopes. Customers will need to arrange pre-retrofit removal verification and post-
retrofit removal inspections in order to receive the rebate. Rebate applications can be found on the
City’s website or picked up at the Public Works office. The City’s program began in 2015 and a total of
4 controllers have been installed for a total rebate amount of $400.
9.1.7.7 Rain Barrel Rebate Program
The City offers a rebate of up to $50 to customers for the purchase of 50 gallon or more rain barrel.
Customers will need to arrange pre-retrofit removal verification and post-retrofit removal inspections in
order to receive the rebate. Rebate applications can be found on the City’s website or picked up at the
Public Works office. The City’s program began in 2015 and 55 rain barrels have been purchased and
installed for a total rebate amount of $2,750.
City of Morro Bay 9-5 2020 Urban Water Management Plan
9.2 Reporting Implementation
Water conservation efforts over the past five years have included rebates to customers for water-
efficient washing machines, toilet retrofits, cash for grass, irrigation retrofits, rain barrels and “SMART”
irrigation controllers as noted in Section 9.1.7. Since rebate programs began in 2015, the City has
provided over $45,000 to help residents conserve water.
9.2.1 Implementation Efforts to Achieve Water Use Targets
For decades, the City has valued and promoted conservation and will continue to do so. As a result, the
City water use is below target objectives set by the State of California. Despite meeting the targets, the
City will continue to implement existing conservation programs and explore additional programs to
avoid substantial increases in demands.
9.3 Water Use Objectives (Future Requirements)
The City customers are efficient and have reduced their GPCD consumption to less than the State
target. The City continues to promote conservation and will evaluate additional measures if and when
future requirements are established.
10-1
10
URBAN WATER MANAGEMENT PLAN
Plan Adoption, Submittal, and Implementation
This chapter describes the steps taken to adopt and submit the UWMP and to
make it publicly available. This chapter will also include a discussion of the
agency’s plan to implement the UWMP.
The 2020 UWMP and 2020 WSCP were prepared in a
transparent manner that actively engaged stakeholders and the
public to seek and distribute water use, supply, and reliability
information to strengthen the City’s ability to assess and plan for
the City’s water future. In addition, the UWMP and WSCP relied
on existing policies and plans that previously involved
stakeholders, cities, counties, water agencies, and the public to
build on prior efforts and stakeholder engagement.
IN THIS SECTION
• Public Hearing
Notices
• Adoption Process
• Amending the
UWMP and WSCP
City of Morro Bay 10-2 2020 Urban Water Management Plan
10.1 Inclusion of All 2020 Data
The City has included all requisite 2020 data in the development of this UWMP.
10.2 Notice of Public Hearing
10.2.1 Notice to Cities and Counties
CWC Section 10621(b) requires that suppliers notify the cities and counties in which they serve water
that the UWMP and WSCP are being updated at least 60 days prior to the public hearing. To fulfill this
requirement, on August 9, 2021, the City notified the County of San Luis Obispo of their intent to
complete the 2020 UWMP, WSCP and amend the 2015 UWMP. The City also provided notification to
SLOCOG and CCWA. Copies of the 60-day notification letters are included in Appendix B.
10.2.2 Notice to the Public
Per Government Code 6066, the City notified the public about the 2020 UWMP and WSCP public
hearing once a week for two successive weeks in advance of the meeting in the San Luis Obispo
Tribune. The public hearing was first noticed on September 28, 2021 and noticed again on October 5,
2021. Public hearing notifications were also sent to the same distribution list as the 60-day notifications
via email. The hearing notices are attached as Appendix B. Table 10-1 summarizes notifications
provided by the City.
The City also made the UWMP and WSCP available for public review on September 28, 2021 and
maintained a copy of the documents in their office and on the City website prior to the public hearing for
review.
Table 10-1. DWR 10-1R Notifications
COUNTY 60 DAY NOTICE
County of San Luis Obispo X
OTHER 60 DAY NOTICE
San Luis Obispo Council of Governments X
Central Coast Water Authority X
10.3 Public Hearing and Adoption
The 2020 UWMP, 2020 WSCP, and 2015 UWMP appendix were included as agenda items, noticed,
and reviewed in a Public Hearing at the regularly scheduled City Council meeting on October 12, 2021.
This hearing provided the agencies and members of the public a chance to comment on the Draft
documents. The public hearing took place before the adoption allowing opportunity for the report to be
modified in response to public input. The City Council adopted the 2020 UWMP, 2020 WSCP, and
2015 UWMP appendix on Month XX, 2021. A copy of the City Council Resolution of Plan Adoption is
included as Appendix C.
City of Morro Bay 10-3 2020 Urban Water Management Plan
10.4 Plan Submittal
The 2020 UWMP, WSCP, and 2015 UWMP Appendix were submitted to DWR within 30 days of
adoption using the DWR Water Use Efficiency (WUE) Data Portal. The documents were also submitted
to the California State Library and to the County of San Luis Obispo within 30 days of adoption.
10.5 Public Availability
Commencing no later than within 30 days of adoption, the City will have a copy of the 2020 UWMP and
WSCP available for public review at the City’s office (see address below) during regular business
hours. The final documents will also be posted on the City’s website as noted below.
595 Harbor Street, Morro Bay, CA 93422
https://www.morro-bay.ca.us
10.6 Amending an Adopted UWMP or Water Shortage Contingency
Plan
Amendments to the City’s 2020 UWMP and WSCP will be made on an as needed basis. Table 10-2
outlines the general steps to adopt, submit, and/or amend the UWMP and/or WSCP.
Should the City need to amend the adopted 2020 UWMP or WSCP in the future, the City will hold a
public hearing for review of the proposed amendments to the document. The City will send a 60-day
notification letter to all cities and counties within the City’s service area and notify the public in the same
manner as set forth in this Chapter. Once the amended document is adopted, a copy of the final
version will be sent to the California State Library, DWR (electronically using the WUEdata reporting
tool), and San Luis Obispo County within 30 days of adoption. The final version will also be made
available to the public both online on the City’s website and in person at the City’s office during normal
business hours.
Table 10-2. Steps to Adopt, Submit and Implement the UWMP and WSCP
STEP TASK DESCRIPTION TIMEFRAME
1 Notice to cities and
counties
Notify cities and counties within the service area
that the UWMP or WSCP is being updated. It is
recommended that the notice includes:
1. Time and place of public hearing.
2. Location of the draft Plan, latest revision
schedule, and contact information of the
Plan preparer.
At least 60 days before
public hearing.
* If desired, advance notices
can be issued without
providing time and place of
public hearing.
2 Publish Plan Publish the draft UWMP or WSCP in advance of
public hearing meeting
Recommended at least 2
weeks before public hearing.
3 Notice to the public
Publish two notifications of the public hearing in a
local newspaper notice at least once a week for
two consecutive weeks, with at least 5 days
between publications. This notice must include:
1. Time and place of hearing.
2. Location of the draft UWMP or WSCP.
At least 2 weeks before
public hearing.
* Include a copy of public
notices in plan.
City of Morro Bay 10-4 2020 Urban Water Management Plan
STEP TASK DESCRIPTION TIMEFRAME
4 Public hearing and
optional adoption
Host at least one public hearing before adopting
the UWMP or WSCP to:
1. Allow for community input.
2. Consider the economic impacts for
complying with the Plan.
For UWMP only
As part of public hearing,
1. Provide information on the SBX7-7
baseline water use, target water use,
compliance status, and implementation
plan.
2. If needed, re-adopt a method for
determining urban water use targets
Public hearing date
* Adoption can be combined
if public hearing is on the
agenda before adoption
5 Adoption
Before submitting the UWMP or WSCP to DWR,
the governing body must formally adopt it. An
adoption resolution must be included, as an
attachment or as a web address indicating where
the adoption resolution can be found online.
At public hearing or at a
later meeting.
*The UWMP or WSCP can
be adopted as prepared or
as modified after the
hearing.
6 Plan submittal
Submit the adopted or amended UWMP or
WSCP via the WUE Data Portal within 30 days of
adoption or by July 1, if updated with the UWMP
five-year cycle.
Within 30 days of adoption
or by July 1st, whichever
comes first.
7 Plan availability
Submit a CD or hardcopy of the adopted UWMP
or WSCP to the California State Library within 30
days of adoption.
California State Library Government Publications
Section Attention: Coordinator, Urban Water
Management Plans P.O. Box 942837 Sacramento,
CA 94237-0001
Provide a copy (hardcopy or electronic) of the
adopted UWMP or WSCP to any cities and
counties within the service area.
Make the UWMP or WSCP available to the
public by posting the Plan on website or making a
hardcopy available for public review during
normal business hours.
Within 30 days after
adoption
9
Other - Notification to
Public Utilities
Commission
For water suppliers regulated by the California
Public Utilities Commission submit UWMP and
WSCP as part of the general rate case filing.
REF-1
URBAN WATER MANAGEMENT PLAN
References
Beacon Economics & SLOCOG Staff. (June 2017). 2050 Regional Growth Forecast for San Luis Obispo County:
Population, Housing, and Employment Projections.
California Department of Water Resources. (February 2016). Methodologies for Calculating Baseline and
Compliance Urban Per Capita Water Use.
California Department of Water Resources. (March 2021). Urban Water Management Plan Guidebook 2020.
California Department of Water Resources. (2020). Final State Water Project Delivery Capability Report
2019.
Carollo. (October 2018). OneWater Morro Bay. Morro Bay.
City of Morro Bay. (2021, May). Plan Morro Bay.
CIMIS. (2021). Retrieved from California Irrigation Management Information System:
https://cimis.water.ca.gov/WSNReportCriteria.aspx
City of Morro Bay. (May 2021). Plan Morro Bay. City of Morro Bay.
GSI Water Solutions, Inc. (June 2020) Characterization and Selection of Project Area for Injection Testing, City
of Morro Bay.
Resources, C. D. (March 2021). Guidebook to Assist Water Suppliers in the Preparation of a 2020 Urban
Water Management Plan.
Resources, C. D. (March 2021). Urban Water Management Plan Guidebook 2020.
San Luis Obispo County Public Works. (2021, September 10). Recording Rain Station Monthly Precipitation
Report - Canet #747. Retrieved from San Luis Obispo County:
https://www.slocounty.ca.gov/getattachment/46236ac8-f036-4167-aee7-682630b9963a/Canet-
Precipitation-Data-Site-747.aspx
SBCAG. (2019). Regional Growth Forecast 2050 Santa Barbara County.
SLOCOG. (2019, October 2). 2019 Regional Housing Needs Allocation Plan. Retrieved from
https://www.dropbox.com/s/stbw4b26apatv3f/_2019%20RHNA%20Plan_adopted_final.pdf?d=0
U.S. Census Bureau. (Accessed August 1, 2021). QuickFacts: Morro Bay city, California. Retrieved from
https://www.census.gov/quickfacts/morrobaycitycalifornia
United States Census Bureau. (n.d.). American Community Survey Narrative Profiles. Temescal Valley CDP,
California. (U.S. Department of Commerce) Retrieved from United States Census Bureau:
https://www.census.gov/acs/www/data/data-tables-and-tools/narrative-
profiles/2019/report.php?geotype=place&state=06&place=49362
A
DWR Checklist
2020 Guidebook Location Water Code Section Summary as Applies to UWMPSubject2020 UWMP Location (Optional Column for Agency Review Use)Chapter 110615A plan shall describe and evaluate sources of supply, reasonable and practical efficient uses, reclamation and demand management activities.Introduction and Overview Chapter 1Chapter 1 10630.5Each plan shall include a simple description of the supplier’s plan including water availability, future requirements, a strategy for meeting needs, and other pertinent information. Additionally, a supplier may also choose to include a simple description at the beginning of each chapter.SummaryChapter 1, Section 1.2 & Beginning of Each ChapterSection 2.2 10620(b)Every person that becomes an urban water supplier shall adopt an urban water management plan within one year after it has become an urban water supplier.Plan Preparation Not ApplicableSection 2.6 10620(d)(2)Coordinate the preparation of its plan with other appropriate agencies in the area, including other water suppliers that share a common source, water management agencies, and relevant public agencies, to the extent practicable.Plan Preparation Chapter 2, Section 2.3Section 2.6.2 10642Provide supporting documentation that the water supplier has encouraged active involvement of diverse social, cultural, and economic elements of the population within the service area prior to and during the preparation of the plan and contingency plan.Plan PreparationChapter 1, Section 1.3 & Chapter 2, Section 2.3Section 2.6, Section 6.1 10631(h)Retail suppliers will include documentation that they have provided their wholesale supplier(s) - if any - with water use projections from that source.System SuppliesChapter 2, Section 2.3 & Appendix BSection 2.6 10631(h)Wholesale suppliers will include documentation that they have provided their urban water suppliers with identification and quantification of the existing and planned sources of water available from the wholesale to the urban supplier during various water year types.System Supplies Not ApplicableSection 3.1 10631(a)Describe the water supplier service area.System DescriptionChapter 3, Section 3.1Section 3.3 10631(a)Describe the climate of the service area of the supplier.System DescriptionChapter 3, Section 3.2Section 3.4 10631(a)Provide population projections for 2025, 2030, 2035, 2040 and optionally 2045.System DescriptionChapter 3, Section 3.3.1Section 3.4.210631(a)Describe other social, economic, and demographic factors affecting the supplier’s water management planning.System Description Chapter 3, Section 3.3.2Sections 3.4 and 5.4 10631(a) Indicate the current population of the service area.System Description and Baselines and TargetsChapter 3, Section 3.3.1Section 3.5 10631(a)Describe the land uses within the service area.System DescriptionChapter 3, Section 3.4Section 4.210631(d)(1)Quantify past, current, and projected water use, identifying the uses among water use sectors. System Water UseChapter 4, Section 4.2Section 4.2.410631(d)(3)(C)Retail suppliers shall provide data to show the distribution loss standards were met.System Water UseChapter 4, Section 4.2.3Section 4.2.610631(d)(4)(A)In projected water use, include estimates of water savings from adopted codes, plans and other policies or laws. System Water Use Chapter 4, Section 4.2.4Section 4.2.6 10631(d)(4)(B)Provide citations of codes, standards, ordinances, or plans used to make water use projections.System Water Use Chapter 4, Section 4.2.4Section 4.3.2.4 10631(d)(3)(A) Report the distribution system water loss for each of the 5 years preceding the plan update. System Water UseChapter 4, Section 4.2.3Section 4.410631.1(a)Include projected water use needed for lower income housing projected in the service area of the supplier.System Water Use Chapter 4, Section 4.3Section 4.5 10635(b)Demands under climate change considerations must be included as part of the drought risk assessment.System Water UseChapter 4, Section 4.4; Chapter 6, Section 6.2.9; Chapter 7, Section 7.1.2; Chapter 7. Section 7.2Chapter 5 10608.20(e)Retail suppliers shall provide baseline daily per capita water use, urban water use target, interim urban water use target, and compliance daily per capita water use, along with the bases for determining those estimates, including references to supporting data.Baselines and TargetsChapter 5, Section 5.1 & Appendix EChapter 5 10608.24(a) Retail suppliers shall meet their water use target by December 31, 2020. Baselines and TargetsChapter 5, Section 5.2 & Appendix ESection 5.1 10608.36Wholesale suppliers shall include an assessment of present and proposed future measures, programs, and policies to help their retail water suppliers achieve targeted water use reductions.Baselines and Targets Not ApplicableSection 5.2 10608.24(d)(2)If the retail supplier adjusts its compliance GPCD using weather normalization, economic adjustment, or extraordinary events, it shall provide the basis for, and data supporting the adjustment.Baselines and Targets Not ApplicableSection 5.5 10608.22Retail suppliers’ per capita daily water use reduction shall be no less than 5 percent of base daily per capita water use of the 5 year baseline. This does not apply if the suppliers base GPCD is at or below 100.Baselines and TargetsChapter 5, Section 5.1 & Appendix E
Section 5.5 and Appendix E 10608.4Retail suppliers shall report on their compliance in meeting their water use targets. The data shall be reported using a standardized form in the SBX7-7 2020 Compliance Form.Baselines and TargetsChapter 5, Section 5.2 & Appendix ESections 6.1 and 6.210631(b)(1)Provide a discussion of anticipated supply availability under a normal, single dry year, and a drought lasting five years, as well as more frequent and severe periods of drought.System Supplies Chapter 6, Section 6.2 & Chapter 7Sections 6.1 10631(b)(1)Provide a discussion of anticipated supply availability under a normal, single dry year, and a drought lasting five years, as well as more frequent and severe periods of drought, including changes in supply due to climate change. System Supplies Chapter 6, & Chapter 7Section 6.1 10631(b)(2)When multiple sources of water supply are identified, describe the management of each supply in relationship to other identified supplies.System Supplies Chapter 6, Section 6.2 Section 6.1.1 10631(b)(3)Describe measures taken to acquire and develop planned sources of water.System SuppliesChapter 6, Section 6.2.5Section 6.2.810631(b)Identify and quantify the existing and planned sources of water available for 2020, 2025, 2030, 2035, 2040 and optionally 2045.System Supplies Chapter 6, Section 6.1Section 6.2 10631(b)Indicate whether groundwater is an existing or planned source of water available to the supplier.System Supplies Chapter 6, Section 6.2.2Section 6.2.2 10631(b)(4)(A)Indicate whether a groundwater sustainability plan or groundwater management plan has been adopted by the water supplier or if there is any other specific authorization for groundwater management. Include a copy of the plan or authorization.System SuppliesChapter 6, Section 6.2.2 & Appendix HSection 6.2.210631(b)(4)(B)Describe the groundwater basin.System SuppliesChapter 6, Section 6.2.2Section 6.2.210631(b)(4)(B)Indicate if the basin has been adjudicated and include a copy of the court order or decree and a description of the amount of water the supplier has the legal right to pump.System Supplies Chapter 6, Section 6.2.2Section 6.2.2.1 10631(b)(4)(B)For unadjudicated basins, indicate whether or not the department has identified the basin as a high or medium priority. Describe efforts by the supplier to coordinate with sustainability or groundwater agencies to achieve sustainable groundwater conditions. System Supplies Chapter 6, Section 6.2.2Section 6.2.2.4 10631(b)(4)(C)Provide a detailed description and analysis of the location, amount, and sufficiency of groundwater pumped by the urban water supplier for the past five yearsSystem Supplies Chapter 6, Section 6.2.2Section 6.2.2 10631(b)(4)(D)Provide a detailed description and analysis of the amount and location of groundwater that is projected to be pumped.System Supplies Chapter 6, Section 6.1Section 6.2.7 10631(c)Describe the opportunities for exchanges or transfers of water on a short-term or long- term basis.System Supplies Chapter 6, Section 6.2.7Section 6.2.5 10633(b)Describe the quantity of treated wastewater that meets recycled water standards, is being discharged, and is otherwise available for use in a recycled water project.System Supplies (Recycled Water)Chapter 6, Section 6.2.5Section 6.2.5 10633(c) Describe the recycled water currently being used in the supplier's service area.System Supplies (Recycled Water)Chapter 6, Section 6.2.5Section 6.2.5 10633(d)Describe and quantify the potential uses of recycled water and provide a determination of the technical and economic feasibility of those uses.System Supplies (Recycled Water)Chapter 6, Section 6.2.5Section 6.2.5 10633(e)Describe the projected use of recycled water within the supplier's service area at the end of 5, 10, 15, and 20 years, and a description of the actual use of recycled water in comparison to uses previously projected.System Supplies (Recycled Water)Chapter 6, Section 6.2.5Section 6.2.510633(f)Describe the actions which may be taken to encourage the use of recycled water and the projected results of these actions in terms of acre-feet of recycled water used per year.System Supplies (Recycled Water)Chapter 6, Section 6.2.5Section 6.2.510633(g)Provide a plan for optimizing the use of recycled water in the supplier's service area.System Supplies (Recycled Water)Chapter 6, Section 6.2.5Section 6.2.6 10631(g)Describe desalinated water project opportunities for long-term supply.System SuppliesChapter 6, Section 6.2.6Section 6.2.510633(a)Describe the wastewater collection and treatment systems in the supplier’s service area with quantified amount of collection and treatment and the disposal methods.System Supplies (Recycled Water)Chapter 6, Section 6.2.5Section 6.2.8, Section 6.3.7 10631(f)Describe the expected future water supply projects and programs that may be undertaken by the water supplier to address water supply reliability in average, single-dry, and for a period of drought lasting 5 consecutive water years.System Supplies Chapter 6, Section 6.2.8Section 6.4 and Appendix O 10631.2(a)The UWMP must include energy information, as stated in the code, that a supplier can readily obtain. System Suppliers, Energy IntensityChapter 6, Section 6.3Section 7.2 10634Provide information on the quality of existing sources of water available to the supplier and the manner in which water quality affects water management strategies and supply reliabilityWater Supply Reliability AssessmentChapter 7, Section 7.1.1Section 7.2.4 10620(f)Describe water management tools and options to maximize resources and minimize the need to import water from other regions.Water Supply Reliability AssessmentChapter 7, Section 7.1.1Section 7.3 10635(a)Service Reliability Assessment: Assess the water supply reliability during normal, dry, and a drought lasting five consecutive water years by comparing the total water supply sources available to the water supplier with the total projected water use over the next 20 years.Water Supply Reliability AssessmentChapter 7
Section 7.310635(b)Provide a drought risk assessment as part of information considered in developing the demand management measures and water supply projects.Water Supply Reliability AssessmentChapter 7, Section 7.2Section 7.3 10635(b)(1)Include a description of the data, methodology, and basis for one or more supply shortage conditions that are necessary to conduct a drought risk assessment for a drought period that lasts 5 consecutive years.Water Supply Reliability AssessmentChapter 7, Section 7.2Section 7.310635(b)(2)Include a determination of the reliability of each source of supply under a variety of water shortage conditions.Water Supply Reliability AssessmentChapter 7, Section 7.2Section 7.3 10635(b)(3)Include a comparison of the total water supply sources available to the water supplier with the total projected water use for the drought period. Water Supply Reliability AssessmentChapter 7Section 7.3 10635(b)(4)Include considerations of the historical drought hydrology, plausible changes on projected supplies and demands under climate change conditions, anticipated regulatory changes, and other locally applicable criteria. Water Supply Reliability AssessmentChapter 7Chapter 810632(a) Provide a water shortage contingency plan (WSCP) with specified elements below. Water Shortage Contingency PlanningChapter 8 & Appendix GChapter 8 10632(a)(1) Provide the analysis of water supply reliability (from Chapter 7 of Guidebook) in the WSCPWater Shortage Contingency PlanningAppendix G, Section 1.1Section 8.10 10632(a)(10)Describe reevaluation and improvement procedures for monitoring and evaluation the water shortage contingency plan to ensure risk tolerance is adequate and appropriate water shortage mitigation strategies are implemented.Water Shortage Contingency PlanningAppendix G, Section 1.2, 1.9, 1.10 Section 8.210632(a)(2)(A)Provide the written decision-making process and other methods that the supplier will use each year to determine its water reliability. Water Shortage Contingency PlanningAppendix G, Section 1.2 Section 8.2 10632(a)(2)(B)Provide data and methodology to evaluate the supplier’s water reliability for the current year and one dry year pursuant to factors in the code.Water Shortage Contingency PlanningAppendix G, Section 1.2 Section 8.3 10632(a)(3)(A)Define six standard water shortage levels of 10, 20, 30, 40, 50 percent shortage and greater than 50 percent shortage. These levels shall be based on supply conditions, including percent reductions in supply, changes in groundwater levels, changes in surface elevation, or other conditions. The shortage levels shall also apply to a catastrophic interruption of supply.Water Shortage Contingency PlanningAppendix G, Section 1.3Section 8.3 10632(a)(3)(B)Suppliers with an existing water shortage contingency plan that uses different water shortage levels must cross reference their categories with the six standard categories.Water Shortage Contingency PlanningAppendix G, Section 1.3Section 8.4 10632(a)(4)(A)Suppliers with water shortage contingency plans that align with the defined shortage levels must specify locally appropriate supply augmentation actions. Water Shortage Contingency PlanningAppendix G, Section 1.4.2Section 8.4 10632(a)(4)(B) Specify locally appropriate demand reduction actions to adequately respond to shortages. Water Shortage Contingency PlanningAppendix G, Section 1.4Section 8.4 10632(a)(4)(C) Specify locally appropriate operational changes. Water Shortage Contingency PlanningAppendix G, Section 1.4.3Section 8.4 10632(a)(4)(D)Specify additional mandatory prohibitions against specific water use practices that are in addition to state-mandated prohibitions are appropriate to local conditions. Water Shortage Contingency PlanningAppendix G, Section 1.4.4Section 8.4 10632(a)(4)(E)Estimate the extent to which the gap between supplies and demand will be reduced by implementation of the action.Water Shortage Contingency PlanningAppendix G, Section 1.4.1Section 8.4.6 10632.5 The plan shall include a seismic risk assessment and mitigation plan.Water Shortage Contingency PlanAppendix G, Section 1.4.6Section 8.5 10632(a)(5)(A)Suppliers must describe that they will inform customers, the public and others regarding any current or predicted water shortages.Water Shortage Contingency PlanningAppendix G, Section 1.5Section 8.5 and 8.610632(a)(5)(B) 10632(a)(5)(C)Suppliers must describe that they will inform customers, the public and others regarding any shortage response actions triggered or anticipated to be triggered and other relevant communications.Water Shortage Contingency PlanningAppendix G, Section 1.5Section 8.6 10632(a)(6)Retail supplier must describe how it will ensure compliance with and enforce provisions of the WSCP.Water Shortage Contingency PlanningAppendix G, Section 1.6Section 8.7 10632(a)(7)(A) Describe the legal authority that empowers the supplier to enforce shortage response actions. Water Shortage Contingency PlanningAppendix G, Section 1.7Section 8.7 10632(a)(7)(B)Provide a statement that the supplier will declare a water shortage emergency Water Code Chapter 3. Water Shortage Contingency PlanningAppendix G, Section 1.7; and Chapter 9, Section 9.1.1Section 8.710632(a)(7)(C)Provide a statement that the supplier will coordinate with any city or county within which it provides water for the possible proclamation of a local emergency. Water Shortage Contingency PlanningAppendix G, Section 1.7; and Chapter 9, Section 9.1.1Section 8.810632(a)(8)(A)Describe the potential revenue reductions and expense increases associated with activated shortage response actions.Water Shortage Contingency PlanningAppendix G, Section 1.8Section 8.8 10632(a)(8)(B)Provide a description of mitigation actions needed to address revenue reductions and expense increases associated with activated shortage response actions.Water Shortage Contingency PlanningAppendix G, Section 1.8
Section 8.810632(a)(8)(C)Retail suppliers must describe the cost of compliance with Water Code Chapter 3.3: Excessive Residential Water Use During DroughtWater Shortage Contingency PlanningAppendix G, Section 1.8Section 8.9 10632(a)(9)Retail suppliers must describe the monitoring and reporting requirements and procedures that ensure appropriate data is collected, tracked, and analyzed for purposes of monitoring customer compliance.Water Shortage Contingency PlanningAppendix G, Section 1.9Section 8.1110632(b)Analyze and define water features that are artificially supplied with water, including ponds, lakes, waterfalls, and fountains, separately from swimming pools and spas.Water Shortage Contingency PlanningAppendix G, Section 1.11Sections 8.12 and 10.4 10635(c)Provide supporting documentation that Water Shortage Contingency Plan has been, or will be, provided to any city or county within which it provides water, no later than 30 days after the submission of the plan to DWR.Plan Adoption, Submittal, and ImplementationAppendix G, Section 1.12; Chapter 10Section 8.1410632(c)Make available the Water Shortage Contingency Plan to customers and any city or county where it provides water within 30 after adopted the plan.Water Shortage Contingency PlanningAppendix G, Section 1.12; Chapter 10Sections 9.1 and 9.3 10631(e)(2)Wholesale suppliers shall describe specific demand management measures listed in code, their distribution system asset management program, and supplier assistance program.Demand Management Measures Not ApplicableSections 9.2 and 9.3 10631(e)(1)Retail suppliers shall provide a description of the nature and extent of each demand management measure implemented over the past five years. The description will address specific measures listed in code.Demand Management Measures Chapter 9, Section 9.1Chapter 10 10608.26(a)Retail suppliers shall conduct a public hearing to discuss adoption, implementation, and economic impact of water use targets (recommended to discuss compliance).Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.3; Appendix G, Section 1.12Section 10.2.1 10621(b)Notify, at least 60 days prior to the public hearing, any city or county within which the supplier provides water that the urban water supplier will be reviewing the plan and considering amendments or changes to the plan. Reported in Table 10-1.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.2Section 10.410621(f)Each urban water supplier shall update and submit its 2020 plan to the department by July 1, 2021.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.4; Appendix G, Section 1.12Sections 10.2.2, 10.3, and 10.5 10642Provide supporting documentation that the urban water supplier made the plan and contingency plan available for public inspection, published notice of the public hearing, and held a public hearing about the plan and contingency plan.Plan Adoption, Submittal, and ImplementationChapter 10, Section 5; Appendix BSection 10.2.210642The water supplier is to provide the time and place of the hearing to any city or county within which the supplier provides water.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.2; Appendix BSection 10.3.2 10642Provide supporting documentation that the plan and contingency plan has been adopted as prepared or modified.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.4; Appendix G, Section 1.12; Appendix CSection 10.4 10644(a)Provide supporting documentation that the urban water supplier has submitted this UWMP to the California State Library.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.4Section 10.4 10644(a)(1)Provide supporting documentation that the urban water supplier has submitted this UWMP to any city or county within which the supplier provides water no later than 30 days after adoption.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.5Sections 10.4.1 and 10.4.2 10644(a)(2)The plan, or amendments to the plan, submitted to the department shall be submitted electronically.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.4Section 10.5 10645(a)Provide supporting documentation that, not later than 30 days after filing a copy of its plan with the department, the supplier has or will make the plan available for public review during normal business hours.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.5Section 10.5 10645(b)Provide supporting documentation that, not later than 30 days after filing a copy of its water shortage contingency plan with the department, the supplier has or will make the plan available for public review during normal business hours.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.5Section 10.610621(c)If supplier is regulated by the Public Utilities Commission, include its plan and contingency plan as part of its general rate case filings. Plan Adoption, Submittal, and ImplementationNot ApplicableSection 10.7.2 10644(b)If revised, submit a copy of the water shortage contingency plan to DWR within 30 days of adoption.Plan Adoption, Submittal, and ImplementationChapter 10, Section 10.6
B
Notifications
8/09/2021
John Diodati
County of San Luis Obispo/ San Luis Obispo County Flood Control and Water Conservation District
1050 Monterey St. (Room 206)
San Luis Obispo, CA 93408
Delivered via Email
CITY OF MORRO BAY – NOTICE OF PREPARATION OF THE 2020 URBAN WATER MANAGEMENT
PLAN, WATER SHORTAGE CONTINGENCY PLAN AND APPENDIX TO THE 2015 URBAN WATER
MANAGEMENT PLAN
Dear John Diodati,
The City of Morro Bay (City) is in the process of preparing and updating its 2020 Urban Water
Management Plan (UWMP) and Water Shortage Contingency Plan (WSCP) in compliance with the Urban
Water Management Planning Act. An update of the City’s UWMP is required every five (5) years. In
addition, the City is preparing an Appendix to both the 2020 UWMP and the 2015 UWMP to
demonstrate consistency with Delta Plan Policy WR P1, Reduce Reliance on the Delta Through Improved
Regional Water Self-Reliance (California Code Reg., tit.23, §5003). The 2015 UWMP is being amended
only to report reduced reliance on the Delta and this action is separate from adoption of the 2020
UWMP and adoption of the WSCP.
Water Code section 10621(b) requires an urban water supplier updating its UWMP and WSCP to notify
cities and counties within its service area of the update at least sixty (60) days prior to holding a public
hearing thereby encouraging public involvement and agency coordination. This letter serves as the City’s
notice that it is preparing and updating its 2020 UWMP, WSCP, and amending its 2015 UWMP.
A copy of City’s draft 2020 UWMP and WSCP will be available for review on the City’s website in fall of
2021, and the City will subsequently hold a noticed public hearing on the 2020 UWMP, WSCP and
Appendix to the 2015 UWMP in advance of its proposed adoption. The City invites you to submit
comments and consult with the City regarding its UWMP and WSCP.
The City’s website (https://www.morrobayca.gov/water) will give updates on the 2020 UWMP, WSCP,
and 2015 UWMP amendment. If you have any questions, comments, or input regarding these
documents, please contact Damaris Hanson, Environmental Programs Manager, via email
at dhanson@morrobayca.gov or by phone at (805)772-6265.
Sincerely,
Damaris Hanson
Environmental Programs Manager
City of Morro Bay
8/09/2021
John Brady
Central Coast Water Authority
255 Industrial Way
Buellton, CA 93427
Delivered via Email
CITY OF MORRO BAY – NOTICE OF PREPARATION OF THE 2020 URBAN WATER MANAGEMENT
PLAN, WATER SHORTAGE CONTINGENCY PLAN AND APPENDIX TO THE 2015 URBAN WATER
MANAGEMENT PLAN
Dear John Brady,
The City of Morro Bay (City) is in the process of preparing and updating its 2020 Urban Water
Management Plan (UWMP) and Water Shortage Contingency Plan (WSCP) in compliance with the Urban
Water Management Planning Act. An update of the City’s UWMP is required every five (5) years. In
addition, the City is preparing an Appendix to both the 2020 UWMP and the 2015 UWMP to
demonstrate consistency with Delta Plan Policy WR P1, Reduce Reliance on the Delta Through Improved
Regional Water Self-Reliance (California Code Reg., tit.23, §5003). The 2015 UWMP is being amended
only to report reduced reliance on the Delta and this action is separate from adoption of the 2020
UWMP and adoption of the WSCP.
Water Code section 10621(b) requires an urban water supplier updating its UWMP and WSCP to notify
cities and counties within its service area of the update at least sixty (60) days prior to holding a public
hearing thereby encouraging public involvement and agency coordination. This letter serves as the City’s
notice that it is preparing and updating its 2020 UWMP, WSCP, and amending its 2015 UWMP.
A copy of City’s draft 2020 UWMP and WSCP will be available for review on the City’s website in fall of
2021, and the City will subsequently hold a noticed public hearing on the 2020 UWMP, WSCP and
Appendix to the 2015 UWMP in advance of its proposed adoption. The City invites you to submit
comments and consult with the City regarding its UWMP and WSCP.
The City’s website (https://www.morrobayca.gov/water) will give updates on the 2020 UWMP, WSCP,
and 2015 UWMP amendment. If you have any questions, comments, or input regarding these
documents, please contact Damaris Hanson, Environmental Programs Manager, via email
at dhanson@morrobayca.gov or by phone at (805)772-6265.
Sincerely,
Damaris Hanson
Environmental Programs Manager
City of Morro Bay
8/09/2021
Peter Rodgers
San Luis Obispo Council of Governments
114 Marsh Street
San Luis Obispo, CA 93041
Delivered via Email
CITY OF MORRO BAY – NOTICE OF PREPARATION OF THE 2020 URBAN WATER MANAGEMENT
PLAN, WATER SHORTAGE CONTINGENCY PLAN AND APPENDIX TO THE 2015 URBAN WATER
MANAGEMENT PLAN
Dear Peter Rodgers,
The City of Morro Bay (City) is in the process of preparing and updating its 2020 Urban Water
Management Plan (UWMP) and Water Shortage Contingency Plan (WSCP) in compliance with the Urban
Water Management Planning Act. An update of the City’s UWMP is required every five (5) years. In
addition, the City is preparing an Appendix to both the 2020 UWMP and the 2015 UWMP to
demonstrate consistency with Delta Plan Policy WR P1, Reduce Reliance on the Delta Through Improved
Regional Water Self-Reliance (California Code Reg., tit.23, §5003). The 2015 UWMP is being amended
only to report reduced reliance on the Delta and this action is separate from adoption of the 2020
UWMP and adoption of the WSCP.
Water Code section 10621(b) requires an urban water supplier updating its UWMP and WSCP to notify
cities and counties within its service area of the update at least sixty (60) days prior to holding a public
hearing thereby encouraging public involvement and agency coordination. This letter serves as the City’s
notice that it is preparing and updating its 2020 UWMP, WSCP, and amending its 2015 UWMP.
A copy of City’s draft 2020 UWMP and WSCP will be available for review on the City’s website in fall of
2021, and the City will subsequently hold a noticed public hearing on the 2020 UWMP, WSCP and
Appendix to the 2015 UWMP in advance of its proposed adoption. The City invites you to submit
comments and consult with the City regarding its UWMP and WSCP.
The City’s website (https://www.morrobayca.gov/water) will give updates on the 2020 UWMP, WSCP,
and 2015 UWMP amendment. If you have any questions, comments, or input regarding these
documents, please contact Damaris Hanson, Environmental Programs Manager, via email
at dhanson@morrobayca.gov or by phone at (805)772-6265.
Sincerely,
Damaris Hanson
Environmental Programs Manager
City of Morro Bay
Final Newspaper Postings to be Incorporated Upon Adoption and Finalization of
the UWMP
Appendix C
C
Resolutions
Resolutions To Be Incorporated Upon Adoption and Finalization of the UWMP
D
AWWA Water Loss Audits
Water Audit Report for:
Reporting Year:
All volumes to be entered as: ACRE-FEET PER YEAR
Master Meter and Supply Error Adjustments
WATER SUPPLIED Pcnt:Value:
Volume from own sources:3 36.204 acre-ft/yr 3 acre-ft/yr
Water imported:7 960.850 acre-ft/yr 4 acre-ft/yr
Water exported:n/a 0.000 acre-ft/yr acre-ft/yr
Enter negative % or value for under-registration
WATER SUPPLIED:997.054 acre-ft/yr Enter positive % or value for over-registration
.
AUTHORIZED CONSUMPTION
Billed metered:3 977.697 acre-ft/yr
Billed unmetered:n/a 0.000 acre-ft/yr
Unbilled metered:n/a 0.000 acre-ft/yr Pcnt:Value:
Unbilled unmetered:5 2.493 acre-ft/yr 1.25%acre-ft/yr
AUTHORIZED CONSUMPTION:980.190 acre-ft/yr
WATER LOSSES (Water Supplied - Authorized Consumption)16.864 acre-ft/yr
Apparent Losses Pcnt:Value:
Unauthorized consumption:5 2.493 acre-ft/yr 0.25%acre-ft/yr
Customer metering inaccuracies:3 9.876 acre-ft/yr 1.00%acre-ft/yr
Systematic data handling errors:5 2.444 acre-ft/yr 0.25%acre-ft/yr
Apparent Losses:14.813 acre-ft/yr
Real Losses (Current Annual Real Losses or CARL)
Real Losses = Water Losses - Apparent Losses:2.052 acre-ft/yr
WATER LOSSES:16.864 acre-ft/yr
NON-REVENUE WATER
NON-REVENUE WATER:19.357 acre-ft/yr
= Water Losses + Unbilled Metered + Unbilled Unmetered
SYSTEM DATA
Length of mains:9 72.0 miles
Number of active AND inactive service connections:9 5,478
Service connection density:76 conn./mile main
Yes
Average length of customer service line:6 15.0 ft
Average operating pressure:1 65.0 psi
COST DATA
Total annual cost of operating water system:10 $4,235,000 $/Year
Customer retail unit cost (applied to Apparent Losses):9 $11.21
Variable production cost (applied to Real Losses):5 $2,565.92 $/acre-ft
WATER AUDIT DATA VALIDITY SCORE:
PRIORITY AREAS FOR ATTENTION:
1: Water imported
2: Billed metered
3: Customer metering inaccuracies
Default option selected for Systematic data handling errors - a grading of 5 is applied but not displayed
Average length of customer service line has been set to zero and a data grading score of 10 has been applied
Are customer meters typically located at the curbstop or property line?
AWWA Free Water Audit Software:
Reporting Worksheet
2.493
2016 1/2016 - 12/2016
City of Morro Bay (4010011)
<----------- Enter grading in column 'E' and 'J' ---------->
Based on the information provided, audit accuracy can be improved by addressing the following components:
$/100 cubic feet (ccf)
Default option selected for unauthorized consumption - a grading of 5 is applied but not displayed
*** YOUR SCORE IS: 62 out of 100 ***
A weighted scale for the components of consumption and water loss is included in the calculation of the Water Audit Data Validity Score
?
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?
?
?
?Click to access definition
?
?
?
?
?
?
Please enter data in the white cells below. Where available, metered values should be used; if metered values are unavailable please estimate a value. Indicate your confidence in the accuracy of the input
data by grading each component (n/a or 1-10) using the drop-down list to the left of the input cell. Hover the mouse over the cell to obtain a description of the grades
?
?
?
?
?
?
(length of service line, beyond the property boundary,
that is the responsibility of the utility)
Use buttons to select
percentage of water supplied
OR
value
?Click here:
for help using option
buttons below
?
?
?
?
+
+Click to add a comment
WAS v5.0
+
+
+
+
+
+
American Water Works Association.
?
?
?
+
+
+
+
+
+
+
+
+
+
+
+
+Use Customer Retail Unit Cost to value real losses
?
To select the correct data grading for each input, determine the highest grade where the
utility meets or exceeds all criteria for that grade and all grades below it.
AWWA Free Water Audit Software v5.0 Reporting Worksheet 1
Water Audit Report for:
Reporting Year:
All volumes to be entered as: ACRE-FEET PER YEAR
Master Meter and Supply Error Adjustments
WATER SUPPLIED Pcnt:Value:
Volume from own sources:3 106.353 acre-ft/yr 3 0.00%acre-ft/yr
Water imported:7 924.825 acre-ft/yr 3 0.00%acre-ft/yr
Water exported:n/a 0.000 acre-ft/yr acre-ft/yr
Enter negative % or value for under-registration
WATER SUPPLIED:1,031.178 acre-ft/yr Enter positive % or value for over-registration
.
AUTHORIZED CONSUMPTION
Billed metered:3 1,003.673 acre-ft/yr
Billed unmetered:n/a 0.000 acre-ft/yr
Unbilled metered:n/a 0.000 acre-ft/yr Pcnt:Value:
Unbilled unmetered:5 2.578 acre-ft/yr 1.25%acre-ft/yr
AUTHORIZED CONSUMPTION:1,006.251 acre-ft/yr
WATER LOSSES (Water Supplied - Authorized Consumption)24.927 acre-ft/yr
Apparent Losses Pcnt:Value:
Unauthorized consumption:5 2.578 acre-ft/yr 0.25%acre-ft/yr
Customer metering inaccuracies:3 10.138 acre-ft/yr 1.00%acre-ft/yr
Systematic data handling errors:5 2.509 acre-ft/yr 0.25%acre-ft/yr
Apparent Losses:15.225 acre-ft/yr
Real Losses (Current Annual Real Losses or CARL)
Real Losses = Water Losses - Apparent Losses:9.702 acre-ft/yr
WATER LOSSES:24.927 acre-ft/yr
NON-REVENUE WATER
NON-REVENUE WATER:27.505 acre-ft/yr
= Water Losses + Unbilled Metered + Unbilled Unmetered
SYSTEM DATA
Length of mains:9 72.0 miles
Number of active AND inactive service connections:9 5,478
Service connection density:76 conn./mile main
Yes
Average length of customer service line:6 15.0 ft
Average operating pressure:1 65.0 psi
COST DATA
Total annual cost of operating water system:10 $5,479,700 $/Year
Customer retail unit cost (applied to Apparent Losses):9 $11.21
Variable production cost (applied to Real Losses):5 $2,985.10 $/acre-ft
WATER AUDIT DATA VALIDITY SCORE:
PRIORITY AREAS FOR ATTENTION:
1: Water imported
2: Billed metered
3: Customer metering inaccuracies
Based on the information provided, audit accuracy can be improved by addressing the following components:
$/100 cubic feet (ccf)
Default option selected for unauthorized consumption - a grading of 5 is applied but not displayed
*** YOUR SCORE IS: 61 out of 100 ***
A weighted scale for the components of consumption and water loss is included in the calculation of the Water Audit Data Validity Score
Default option selected for Systematic data handling errors - a grading of 5 is applied but not displayed
Average length of customer service line has been set to zero and a data grading score of 10 has been applied
Are customer meters typically located at the curbstop or property line?
AWWA Free Water Audit Software:
Reporting Worksheet
2.578
2017 1/2017 - 12/2017
City of Morro Bay (4010011)
<----------- Enter grading in column 'E' and 'J' ---------->
?
?
?
?
?
?Click to access definition
?
?
?
?
?
?
Please enter data in the white cells below. Where available, metered values should be used; if metered values are unavailable please estimate a value. Indicate your confidence in the accuracy of the input
data by grading each component (n/a or 1-10) using the drop-down list to the left of the input cell. Hover the mouse over the cell to obtain a description of the grades
?
?
?
?
?
?
(length of service line, beyond the property boundary,
that is the responsibility of the utility)
Use buttons to select
percentage of water supplied
OR
value
?Click here:
for help using option
buttons below
?
?
?
?
+
+Click to add a comment
WAS v5.0
+
+
+
+
+
+
American Water Works Association.
?
?
?
+
+
+
+
+
+
+
+
+
+
+
+
+Use Customer Retail Unit Cost to value real losses
?
To select the correct data grading for each input, determine the highest grade where the
utility meets or exceeds all criteria for that grade and all grades below it.
AWWA Free Water Audit Software v5.0 Reporting Worksheet 1
Water Audit Report for:
Reporting Year:
All volumes to be entered as: ACRE-FEET PER YEAR
Master Meter and Supply Error Adjustments
WATER SUPPLIED Pcnt:Value:
Volume from own sources:3 92.630 acre-ft/yr 3 0.00%acre-ft/yr
Water imported:7 960.340 acre-ft/yr 3 0.00%acre-ft/yr
Water exported:n/a 0.000 acre-ft/yr acre-ft/yr
Enter negative % or value for under-registration
WATER SUPPLIED:1,052.970 acre-ft/yr Enter positive % or value for over-registration
.
AUTHORIZED CONSUMPTION
Billed metered:3 1,008.650 acre-ft/yr
Billed unmetered:n/a 0.000 acre-ft/yr
Unbilled metered:n/a 0.000 acre-ft/yr Pcnt:Value:
Unbilled unmetered:5 2.630 acre-ft/yr 1.25%acre-ft/yr
AUTHORIZED CONSUMPTION:1,011.280 acre-ft/yr
WATER LOSSES (Water Supplied - Authorized Consumption)41.690 acre-ft/yr
Apparent Losses Pcnt:Value:
Unauthorized consumption:5 2.632 acre-ft/yr 0.25%acre-ft/yr
Customer metering inaccuracies:3 10.188 acre-ft/yr 1.00%acre-ft/yr
Systematic data handling errors:5 2.522 acre-ft/yr 0.25%acre-ft/yr
Apparent Losses:15.342 acre-ft/yr
Real Losses (Current Annual Real Losses or CARL)
Real Losses = Water Losses - Apparent Losses:26.347 acre-ft/yr
WATER LOSSES:41.690 acre-ft/yr
NON-REVENUE WATER
NON-REVENUE WATER:44.320 acre-ft/yr
= Water Losses + Unbilled Metered + Unbilled Unmetered
SYSTEM DATA
Length of mains:9 77.0 miles
Number of active AND inactive service connections:5 5,502
Service connection density:71 conn./mile main
Yes
Average length of customer service line:6 15.0 ft
Average operating pressure:1 65.0 psi
COST DATA
Total annual cost of operating water system:10 $5,469,556 $/Year
Customer retail unit cost (applied to Apparent Losses):9 $15.31
Variable production cost (applied to Real Losses):5 $2,169.69 $/acre-ft
WATER AUDIT DATA VALIDITY SCORE:
PRIORITY AREAS FOR ATTENTION:
1: Water imported
2: Billed metered
3: Customer metering inaccuracies
Default option selected for Systematic data handling errors - a grading of 5 is applied but not displayed
Average length of customer service line has been set to zero and a data grading score of 10 has been applied
Are customer meters typically located at the curbstop or property line?
AWWA Free Water Audit Software:
Reporting Worksheet
2.630
2018 1/2018 - 12/2018
City of Morro Bay (4010011)
<----------- Enter grading in column 'E' and 'J' ---------->
Based on the information provided, audit accuracy can be improved by addressing the following components:
$/100 cubic feet (ccf)
Default option selected for unauthorized consumption - a grading of 5 is applied but not displayed
*** YOUR SCORE IS: 60 out of 100 ***
A weighted scale for the components of consumption and water loss is included in the calculation of the Water Audit Data Validity Score
10.000
?
?
?
?
?
?Click to access definition
?
?
?
?
?
?
Please enter data in the white cells below. Where available, metered values should be used; if metered values are unavailable please estimate a value. Indicate your confidence in the accuracy of the input
data by grading each component (n/a or 1-10) using the drop-down list to the left of the input cell. Hover the mouse over the cell to obtain a description of the grades
?
?
?
?
?
?
(length of service line, beyond the property boundary,
that is the responsibility of the utility)
Use buttons to select
percentage of water supplied
OR
value
?Click here:
for help using option
buttons below
?
?
?
?
+
+Click to add a comment
WAS v5.0
+
+
+
+
+
+
American Water Works Association.
?
?
?
+
+
+
+
+
+
+
+
+
+
+
+
+Use Customer Retail Unit Cost to value real losses
?
To select the correct data grading for each input, determine the highest grade where the
utility meets or exceeds all criteria for that grade and all grades below it.
AWWA Free Water Audit Software v5.0 Reporting Worksheet 1
Water Audit Report for:
Reporting Year:
All volumes to be entered as: ACRE-FEET PER YEAR
Master Meter and Supply Error Adjustments
WATER SUPPLIED Pcnt:Value:
Volume from own sources:3 101.272 acre-ft/yr 3 0.25%acre-ft/yr
Water imported:7 968.480 acre-ft/yr 3 0.25%acre-ft/yr
Water exported:n/a 0.000 acre-ft/yr acre-ft/yr
Enter negative % or value for under-registration
WATER SUPPLIED:1,067.084 acre-ft/yr Enter positive % or value for over-registration
.
AUTHORIZED CONSUMPTION
Billed metered:3 951.104 acre-ft/yr
Billed unmetered:n/a 0.000 acre-ft/yr
Unbilled metered:n/a acre-ft/yr Pcnt:Value:
Unbilled unmetered:5 13.339 acre-ft/yr 1.25%acre-ft/yr
AUTHORIZED CONSUMPTION:964.443 acre-ft/yr
WATER LOSSES (Water Supplied - Authorized Consumption)102.642 acre-ft/yr
Apparent Losses Pcnt:Value:
Unauthorized consumption:5 2.668 acre-ft/yr 0.25%acre-ft/yr
Customer metering inaccuracies:3 9.607 acre-ft/yr 1.00%acre-ft/yr
Systematic data handling errors:5 2.378 acre-ft/yr 0.25%acre-ft/yr
Apparent Losses:14.653 acre-ft/yr
Real Losses (Current Annual Real Losses or CARL)
Real Losses = Water Losses - Apparent Losses:87.989 acre-ft/yr
WATER LOSSES:102.642 acre-ft/yr
NON-REVENUE WATER
NON-REVENUE WATER:115.980 acre-ft/yr
= Water Losses + Unbilled Metered + Unbilled Unmetered
SYSTEM DATA
Length of mains:9 77.0 miles
Number of active AND inactive service connections:3 5,530
Service connection density:72 conn./mile main
Yes
Average length of customer service line:6 15.0 ft
Average operating pressure:5 65.0 psi
COST DATA
Total annual cost of operating water system:10 $8,812,645 $/Year
Customer retail unit cost (applied to Apparent Losses):9 $16.24
Variable production cost (applied to Real Losses):5 $2,660.60 $/acre-ft
WATER AUDIT DATA VALIDITY SCORE:
PRIORITY AREAS FOR ATTENTION:
1: Water imported
2: Billed metered
3: Customer metering inaccuracies
Based on the information provided, audit accuracy can be improved by addressing the following components:
$/100 cubic feet (ccf)
Default option selected for unauthorized consumption - a grading of 5 is applied but not displayed
*** YOUR SCORE IS: 60 out of 100 ***
A weighted scale for the components of consumption and water loss is included in the calculation of the Water Audit Data Validity Score
10.000
Default option selected for Systematic data handling errors - a grading of 5 is applied but not displayed
Average length of customer service line has been set to zero and a data grading score of 10 has been applied
Are customer meters typically located at the curbstop or property line?
AWWA Free Water Audit Software:
Reporting Worksheet
Default option selected for Unbilled unmetered - a grading of 5 is applied but not displayed
2.630
2019 1/2019 - 12/2019
City of Morro Bay (4010011)
<----------- Enter grading in column 'E' and 'J' ---------->
?
?
?
?
?
?Click to access definition
?
?
?
?
?
?
Please enter data in the white cells below. Where available, metered values should be used; if metered values are unavailable please estimate a value. Indicate your confidence in the accuracy of the input
data by grading each component (n/a or 1-10) using the drop-down list to the left of the input cell. Hover the mouse over the cell to obtain a description of the grades
?
?
?
?
?
?
(length of service line, beyond the property boundary,
that is the responsibility of the utility)
Use buttons to select
percentage of water supplied
OR
value
?Click here:
for help using option
buttons below
?
?
?
?
+
+Click to add a comment
WAS v5.0
+
+
+
+
+
+
American Water Works Association.
?
?
?
+
+
+
+
+
+
+
+
+
+
+
+
+Use Customer Retail Unit Cost to value real losses
?
To select the correct data grading for each input, determine the highest grade where the
utility meets or exceeds all criteria for that grade and all grades below it.
AWWA Free Water Audit Software v5.0 Reporting Worksheet 1
E
SB X7-7 Verification and Compliance
SB X7-7 Table 0: Units of Measure Used in UWMP*
(select one from the drop down list)
Acre Feet
*The unit of measure must be consistent with Table 2-3
NOTES:
Parameter Value Units
2008 total water deliveries 13,060 Acre Feet
2008 total volume of delivered recycled water - Acre Feet
2008 recycled water as a percent of total deliveries 0.00%Percent
Number of years in baseline period1, 2 10 Years
Year beginning baseline period range 1995
Year ending baseline period range3 2004
Number of years in baseline period 5 Years
Year beginning baseline period range 2003
Year ending baseline period range4 2007
SB X7-7 Table-1: Baseline Period Ranges
1 If the 2008 recycled water percent is less than 10 percent, then the first baseline period is a continuous 10-year period. If the amount of recycled water
delivered in 2008 is 10 percent or greater, the first baseline period is a continuous 10- to 15-year period. 2 The Water Code requires
that the baseline period is between 10 and 15 years. However, DWR recognizes that some water suppliers may not have the minimum 10 years of baseline
data.
3 The ending year must be between December 31, 2004 and December 31, 2010.
4 The ending year must be between December 31, 2007 and December 31, 2010.
5-year
baseline period
Baseline
10- to 15-year
baseline period
NOTES:
NOTES:
SB X7-7 Table 2: Method for Population Estimates
Method Used to Determine Population
(may check more than one)
1. Department of Finance (DOF)
DOF Table E-8 (1990 - 2000) and (2000-2010) and
DOF Table E-5 (2011 - 2015) when available
3. DWR Population Tool
4. Other
DWR recommends pre-review
2. Persons-per-Connection Method
Population
Year 1 1995 9,748
Year 2 1996 9,657
Year 3 1997 9,824
Year 4 1998 9,904
Year 5 1999 9,994
Year 6 2000 10,176
Year 7 2001 10,196
Year 8 2002 10,231
Year 9 2003 10,220
Year 10 2004 10,315
Year 11
Year 12
Year 13
Year 14
Year 15
Year 1 2003 10,220
Year 2 2004 10,315
Year 3 2005 10,374
Year 4 2006 10,354
Year 5 2007 10,448
10,224
Year
2015
SB X7-7 Table 3: Service Area Population
10 to 15 Year Baseline Population
5 Year Baseline Population
2015 Compliance Year Population
NOTES:
Exported
Water
Change in
Dist. System
Storage
(+/-)
Indirect
Recycled
Water
This column will
remain blank
until SB X7-7
Table 4-B is
completed.
Water
Delivered for
Agricultural
Use
Process Water
This column will
remain blank
until SB X7-7
Table 4-D is
completed.
Year 1 1995 1,406 - - 1,406
Year 2 1996 1,501 - - 1,501
Year 3 1997 1,535 - - 1,535
Year 4 1998 1,326 - - 1,326
Year 5 1999 1,393 - - 1,393
Year 6 2000 1,400 - - 1,400
Year 7 2001 1,410 - - 1,410
Year 8 2002 1,454 - - 1,454
Year 9 2003 1,421 - - 1,421
Year 10 2004 1,477 - - 1,477
Year 11 0 - - - -
Year 12 0 - - - -
Year 13 0 - - - -
Year 14 0 - - - -
Year 15 0 - - - -
1,432
Year 1 2003 1,421 - - 1,421
Year 2 2004 1,477 - - 1,477
Year 3 2005 1,361 - - 1,361
Year 4 2006 1,371 - - 1,371
Year 5 2007 1,446 - - 1,446
1,415
1,090 - - - 1,090
* NOTE that the units of measure must remain consistent throughout the UWMP, as reported in Table 2-3
NOTES:
SB X7-7 Table 4: Annual Gross Water Use *
2015
10 to 15 Year Baseline - Gross Water Use
10 - 15 year baseline average gross water use
5 Year Baseline - Gross Water Use
5 year baseline average gross water use
2015 Compliance Year - Gross Water Use
Baseline Year
Fm SB X7-7 Table 3
Volume Into
Distribution
System
This column
will remain
blank until SB
X7-7 Table 4-A
is completed.
Annual
Gross
Water Use
Deductions
Volume
Entering
Distribution
System
Meter Error
Adjustment*
Optional
(+/-)
Corrected
Volume
Entering
Distribution
System
Year 1 1995 986 986
Year 2 1996 1,261 1,261
Year 3 1997 985 985
Year 4 1998 38 38
Year 5 1999 34 34
Year 6 2000 4 4
Year 7 2001 11 11
Year 8 2002 1 1
Year 9 2003 1 1
Year 10 2004 49 49
Year 11 0 -
Year 12 0 -
Year 13 0 -
Year 14 0 -
Year 15 0 -
Year 1 2003 1 1
Year 2 2004 49 49
Year 3 2005 204 204
Year 4 2006 257 257
Year 5 2007 276 276
- -
SB X7-7 Table 4-A: Volume Entering the Distribution
System(s)
Complete one table for each source.
10 to 15 Year Baseline - Water into Distribution System
5 Year Baseline - Water into Distribution System
2015 Compliance Year - Water into Distribution System
Name of Source
Baseline Year
Fm SB X7-7 Table 3
* Meter Error Adjustment - See guidance in Methodology 1, Step 3 of
Methodologies Document
NOTES:
This water source is:
The supplier's own water source
A purchased or imported source
2015
Chorro Basin
Volume
Entering
Distribution
System
Meter Error
Adjustment*
Optional
(+/-)
Corrected
Volume
Entering
Distribution
System
Year 1 1,995 420 420
Year 2 1,996 240 240
Year 3 1,997 249 249
Year 4 1,998 0 0
Year 5 1,999 0 0
Year 6 2,000 0 0
Year 7 2,001 0 0
Year 8 2,002 32 32
Year 9 2,003 28 28
Year 10 2,004 213 213
Year 11 - 0
Year 12 - 0
Year 13 - 0
Year 14 - 0
Year 15 - 0
Year 1 2,003 28 28
Year 2 2,004 213 213
Year 3 2,005 150 150
Year 4 2,006 80 80
Year 5 2,007 35 35
0 0
Name of Source Morro Basin
SB X7-7 Table 4-A: Volume Entering the Distribution
Baseline Year
Fm SB X7-7 Table 3
2015
* Meter Error Adjustment - See guidance in Methodology 1, Step 3 of
Methodologies Document
NOTES:
This water source is:
The supplier's own water source
A purchased or imported source
10 to 15 Year Baseline - Water into Distribution System
5 Year Baseline - Water into Distribution System
2015 Compliance Year - Water into Distribution System
Volume
Entering
Distribution
System
Meter Error
Adjustment*
Optional
(+/-)
Corrected
Volume
Entering
Distribution
System
Year 1 1,995 0 0
Year 2 1,996 0 0
Year 3 1,997 0 0
Year 4 1,998 0 0
Year 5 1,999 0 0
Year 6 2,000 0 0
Year 7 2,001 0 0
Year 8 2,002 48 48
Year 9 2,003 13 13
Year 10 2,004 10 10
Year 11 - 0
Year 12 - 0
Year 13 - 0
Year 14 - 0
Year 15 - 0
Year 1 2,003 13 13
Year 2 2,004 10 10
Year 3 2,005 0 0
Year 4 2,006 25 25
Year 5 2,007 19 19
138 138
R/O Plant - Treated brackish groundwater
This water source is:
The supplier's own water source
A purchased or imported source
10 to 15 Year Baseline - Water into Distribution System
5 Year Baseline - Water into Distribution System
2015 Compliance Year - Water into Distribution System
Name of Source
2015
* Meter Error Adjustment - See guidance in Methodology 1, Step 3 of
Methodologies Document
NOTES:
SB X7-7 Table 4-A: Volume Entering the Distribution
Baseline Year
Fm SB X7-7 Table 3
Volume
Entering
Distribution
System
Meter Error
Adjustment*
Optional
(+/-)
Corrected
Volume
Entering
Distribution
System
Year 1 1,995 0 0
Year 2 1,996 0 0
Year 3 1,997 301 301
Year 4 1,998 1288 1,288
Year 5 1,999 1359 1,359
Year 6 2,000 1396 1,396
Year 7 2,001 1399 1,399
Year 8 2,002 1373 1,373
Year 9 2,003 1379 1,379
Year 10 2,004 1205 1,205
Year 11 - 0
Year 12 - 0
Year 13 - 0
Year 14 - 0
Year 15 - 0
Year 1 2,003 1379 1,379
Year 2 2,004 1205 1,205
Year 3 2,005 1007 1,007
Year 4 2,006 1009 1,009
Year 5 2,007 1116 1,116
952 952
State Water
This water source is:
The supplier's own water source
A purchased or imported source
SB X7-7 Table 4-A: Volume Entering the Distribution
Baseline Year
Fm SB X7-7 Table 3
2015
* Meter Error Adjustment - See guidance in Methodology 1, Step 3 of
Methodologies Document
NOTES:
Name of Source
10 to 15 Year Baseline - Water into Distribution System
5 Year Baseline - Water into Distribution System
2015 Compliance Year - Water into Distribution System
Service Area
Population
Fm SB X7-7
Table 3
Annual Gross
Water Use
Fm SB X7-7
Table 4
Daily Per
Capita Water
Use (GPCD)
Year 1 1995 9,748 1,406 129
Year 2 1996 9,657 1,501 139
Year 3 1997 9,824 1,535 139
Year 4 1998 9,904 1,326 120
Year 5 1999 9,994 1,393 124
Year 6 2000 10,176 1,400 123
Year 7 2001 10,196 1,410 123
Year 8 2002 10,231 1,454 127
Year 9 2003 10,220 1,421 124
Year 10 2004 10,315 1,477 128
Year 11 0 - -
Year 12 0 - -
Year 13 0 - -
Year 14 0 - -
Year 15 0 - -
128
Service Area
Population
Fm SB X7-7
Table 3
Gross Water Use
Fm SB X7-7
Table 4
Daily Per
Capita Water
Use
Year 1 2003 10,220 1,421 124
Year 2 2004 10,315 1,477 128
Year 3 2005 10,374 1,361 117
Year 4 2006 10,354 1,371 118
Year 5 2007 10,448 1,446 124
122
10,224 1,090 95
NOTES:
5 Year Average Baseline GPCD
2015 Compliance Year GPCD
2015
Baseline Year
Fm SB X7-7 Table 3
SB X7-7 Table 5: Gallons Per Capita Per Day (GPCD)
Baseline Year
Fm SB X7-7 Table 3
10 to 15 Year Baseline GPCD
10-15 Year Average Baseline GPCD
5 Year Baseline GPCD
128
122
2015 Compliance Year GPCD 95
SB X7-7 Table 6: Gallons per Capita per Day
Summary From Table SB X7-7 Table 5
10-15 Year Baseline GPCD
5 Year Baseline GPCD
NOTES:
Supporting Documentation
Method 1 SB X7-7 Table 7A
Method 2 SB X7-7 Tables 7B, 7C, and 7D
Contact DWR for these tables
Method 3 SB X7-7 Table 7-E
Method 4 Method 4 Calculator
SB X7-7 Table 7: 2020 Target Method
Select Only One
Target Method
NOTES:
Agency May
Select More
Than One as
Applicable
Percentage of
Service Area
in This
Hydrological
Region
Hydrologic Region
"2020 Plan"
Regional
Targets
Method 3
Regional
Targets
(95%)
North Coast 137 130
North Lahontan 173 164
Sacramento River 176 167
San Francisco Bay 131 124
San Joaquin River 174 165
100%Central Coast 123 117
Tulare Lake 188 179
South Lahontan 170 162
South Coast 149 142
Colorado River 211 200
117
SB X7-7 Table 7-E: Target Method 3
Target
(If more than one region is selected, this value is calculated.)
NOTES:
5 Year
Baseline GPCD
From SB X7-7
Table 5
Maximum 2020
Target1
Calculated
2020 Target2
Confirmed
2020 Target
122 116 117 116
SB X7-7 Table 7-F: Confirm Minimum Reduction for 2020 Target
1 Maximum 2020 Target is 95% of the 5 Year Baseline GPCD except for suppliers at or below 100
GPCD.
2 2020 Target is calculated based on the selected Target Method, see SB X7-7 Table 7 and
corresponding tables for agency's calculated target.
NOTES:
Confirmed
2020 Target
Fm SB X7-7
Table 7-F
10-15 year
Baseline GPCD
Fm SB X7-7
Table 5
2015 Interim
Target GPCD
116 128 122
SB X7-7 Table 8: 2015 Interim Target GPCD
NOTES:
SB X7-7 Table 0: Units of Measure Used in 2020 UWMP*
(select one from the drop down list)
Acre Feet
*The unit of measure must be consistent throughout the UWMP, as
reported in Submittal Table 2-3.
NOTES:
NOTES: 2020 United States Census Bureau Data
SB X7-7 Table 2: Method for 2020 Population Estimate
Method Used to Determine 2020 Population
(may check more than one)
1. Department of Finance (DOF) or
American Community Survey (ACS)
3. DWR Population Tool
4. Other
DWR recommends pre-review
2. Persons-per-Connection Method
10,757 2020
SB X7-7 Table 3: 2020 Service Area Population
2020 Compliance Year Population
NOTES:
Exported
Water *
Change in
Dist. System
Storage*
(+/‐)
Indirect
Recycled
Water
This column will
remain blank
until SB X7‐7
Table 4‐B is
completed.
Water
Delivered
for
Agricultural
Use*
Process Water
This column will
remain blank
until SB X7‐7
Table 4‐D is
completed.
1,090 ‐ ‐ 1,090
NOTES:
SB X7‐7 Table 4: 2020 Gross Water Use
2020 Volume
Into
Distribution
System
This column will
remain blank until
SB X7‐7 Table 4‐A
is completed.
2020 Gross Water
Use
2020 Deductions
* Units of measure (AF, MG , or CCF) must remain consistent throughout the UWMP, as reported in SB X7‐7 Table 0 and
Submittal Table 2‐3.
Compliance
Year 2020
Volume Entering
Distribution System 1
Meter Error
Adjustment 2
Optional
(+/‐)
Corrected Volume
Entering
Distribution System
61.19 ‐ 61
Volume Entering
Distribution System 1
Meter Error
Adjustment 2
Optional
(+/‐)
Corrected Volume
Entering
Distribution System
1,028.88 1,029
This water source is (check one):
The supplier's own water source
NOTES:
SB X7‐7 Table 4‐A: 2020 Volume Entering the Distribution System(s), Meter
Error Adjustment
Complete one table for each source.
Name of Source SWP Water
Name of Source
SB X7‐7 Table 4‐A: 2020 Volume Entering the Distribution System(s) Meter
Error Adjustment
Complete one table for each source.
1 Units of measure (AF, MG , or CCF) must remain consistent throughout the UWMP, as reported in SB
X7‐7 Table 0 and Submittal Table 2‐3. 2 Meter
Error Adjustment ‐ See guidance in Methodology 1, Step 3 of Methodologies Document
NOTES
This water source is (check one):
The supplier's own water source
A purchased or imported source
Morro Basin
Compliance Year
2020
A purchased or imported source
1 Units of measure (AF, MG , or CCF) must remain consistent throughout the UWMP, as reported in SB
X7‐7 Table 0 and Submittal Table 2‐3. 2 Meter Error
Adjustment ‐ See guidance in Methodology 1, Step 3 of Methodologies Document
Compliance Year
2020
2020 Gross Water
Fm SB X7-7 Table 4
2020 Population Fm
SB X7-7 Table 3 2020 GPCD
1,090 10,757 90
SB X7-7 Table 5: 2020 Gallons Per Capita Per Day
(GPCD)
NOTES:
Extraordinary
Events1
Weather
Normalization1
Economic
Adjustment1
90 ‐ ‐ ‐ ‐ 90 116 YES
NOTES:
1 All values are reported in GPCD
2 2020 Confirmed Target GPCD is taken from the Supplier's SB X7‐7 Verification Form Table SB X7‐7, 7‐F.
SB X7‐7 Table 9: 2020 Compliance
Optional Adjustments to 2020 GPCD
Did Supplier
Achieve
Targeted
Reduction for
2020?
Actual 2020
GPCD1
2020 Confirmed
Target GPCD 1, 2TOTAL
Adjustments1
Adjusted 2020
GPCD 1
(Adjusted if
applicable)
Enter "0" if Adjustment Not Used
F
Appendix F: Demonstration
of Reduced Delta Reliance
2
Quantifying Regional Self-Reliance and
Reduced Reliance on Water Supplies from the
Delta Watershed
1. Background
Under the Sacramento-San Joaquin Delta Reform Act of 2009, state and local public agencies proposing
a covered action in the Delta, prior to initiating the implementation of that action, must prepare a written
certification of consistency with detailed findings as to whether the covered action is consistent with
applicable Delta Plan policies and submit that certification to the Delta Stewardship Council. Anyone may
appeal a certification of consistency, and if the Delta Stewardship Council grants the appeal, the covered
action may not be implemented until the agency proposing the covered action submits a revised
certification of consistency, and either no appeal is filed, or the Delta Stewardship Council denies the
subsequent appeal.
An urban water supplier that anticipates participating in or receiving water from a proposed covered action
such as a multi-year water transfer, conveyance facility, or new diversion that involves transferring water
through, exporting water from, or using water in the Delta should provide information in their 2015 and
2020 Urban Water Management Plans (UWMPs) that can then be used in the covered action process to
demonstrate consistency with Delta Plan Policy WR P1, Reduce Reliance on the Delta Through Improved
Regional Water Self-Reliance (WR P1).
WR P1 details what is needed for a covered action to demonstrate consistency with reduced reliance on
the Delta and improved regional self-reliance. WR P1 subsection (a) states that:
(a) Water shall not be exported from, transferred through, or used in the Delta if all the following
apply:
(1) One or more water suppliers that would receive water as a result of the export, transfer,
or use have failed to adequately contribute to reduced reliance on the Delta and improved
regional self-reliance consistent with all of the requirements listed in paragraph (1) of
subsection (c);
(2) That failure has significantly caused the need for the export, transfer, or use; and
(3) The export, transfer, or use would have a significant adverse environmental impact in
the Delta.
WR P1 subsection (c)(1) further defines what adequately contributing to reduced reliance on the Delta
means in terms of (a)(1) above.
(c)(1) Water suppliers that have done all the following are contributing to reduced reliance on the
Delta and improved regional self-reliance and are therefore consistent with this policy:
(A) Completed a current Urban or Agricultural Water Management Plan (Plan) which has
been reviewed by the California Department of Water Resources for compliance with the
applicable requirements of Water Code Division 6, Parts 2.55, 2.6, and 2.8;
(B) Identified, evaluated, and commenced implementation, consistent with the
implementation schedule set forth in the Plan, of all programs and projects included in the
Plan that are locally cost effective and technically feasible which reduce reliance on the
Delta; and
(C) Included in the Plan, commencing in 2015, the expected outcome for measurable
reduction in Delta reliance and improvement in regional self-reliance. The expected
outcome for measurable reduction in Delta reliance and improvement in regional self-
reliance shall be reported in the Plan as the reduction in the amount of water used, or in
the percentage of water used, from the Delta watershed. For the purposes of reporting,
water efficiency is considered a new source of water supply, consistent with Water Code
section 1011(a).
The analysis and documentation provided below include all the elements described in WR P1(c)(1) that
need to be included in a water supplier’s UWMP to support a certification of consistency for a future
covered action.
2. Methodology
As stated in WR P1(c)(1)(C), the policy requires that, commencing in 2015, UWMPs include expected
outcomes for improved regional self-reliance and measurable reduction in Delta reliance. WR P1 further
states that those outcomes shall be reported in the UWMP as the reduction in the amount of water used,
or in the percentage of water used, from the Delta. The expected outcomes for the City of Morro Bay’s
(City’s) regional self-reliance and reduced Delta reliance were developed using the approach and
guidance described in Appendix C of DWR’s Urban Water Management Plan Guidebook 2020 issued in
March 2021 (Guidebook Appendix C).
The methodology used to determine the City’s improved regional self-reliance is consistent with the
approach detailed in DWR’s UWMP Guidebook Appendix C, including the use of narrative justifications
for the accounting of supplies and the documentation of specific data sources. Some of the key
assumptions underlying the City’s demonstration of reduced reliance include:
• All data were obtained from the current 2020 UWMP or previously adopted UWMPs and represent
average or normal water year conditions.
• All analyses were conducted at the service area level, and all data reflect the total contributions
of the City and its customers.
• Future projects that are covered actions requiring a certification of consistency with the Delta Plan
were excluded from this analysis.
To calculate the expected outcomes for improved regional self-reliance and reduced Delta reliance, the
outcomes need to be compared to a baseline. This analysis uses a normal water year representation of
2010 as the baseline, which is consistent with the approach described in the Guidebook Appendix C.
Data for the 2010 baseline were taken from the City’s 2005 UWMP, as UWMPs generally do not provide
normal water year data for the year that they are adopted (i.e., 2005 UWMP forecasts begin in 2010,
2010 UWMP forecasts begin in 2015, and so on).
Consistent with the 2010 baseline data approach, the expected outcomes for improved regional self-
reliance and reduced Delta reliance for 2015 and 2020 were taken from the City’s 2010 and 2015
UWMPs, respectively. Expected outcomes for 2025-2045 are from the current 2020 UWMP.
Documentation of the specific data sources and assumptions are included in the discussions below.
3. Demonstration of Regional Self-Reliance
Service Area Demands without Water Use Efficiency
In alignment with the Guidebook Appendix C, this analysis uses normal water year demands, rather than
normal water year supplies to calculate expected outcomes in terms of the percentage of water used.
Normal water year demands serve as a proxy for the amount of supplies that would be used in a normal
water year, which helps alleviate issues associated with how supply capability is presented to fulfill the
requirements of the UWMP Act versus how supplies might be accounted for to demonstrate consistency
with WR P1.
Because WR P1 considers water use efficiency savings a source of water supply, water suppliers can
calculate their embedded water use efficiency savings based on changes in forecasted per capita water
use compared to the baseline. As explained in the Guidebook Appendix C, water use efficiency savings
must be added back to the normal year demands to represent demands without water use efficiency
savings accounted for; otherwise, the effect of water use efficiency savings on regional self-reliance
would be overestimated. Table 1 shows the results of this adjustment for the City. Supporting narratives
and documentation for all the data shown in Table 1 are provided below.
Service Area Demands with Water Use Efficiency
The service area water demands shown in Table 1 represent the total municipal and industrial (M&I)
water demands for the City’s retail service area.
The M&I demand data shown in Table 1 were collected from the following sources:
• Baseline (2010): City’s 2005 UWMP, Table 4-3
• 2015: City’s 2010 UWMP, Table 3-7
• 2020: City’s 2015 UWMP, Table 4-2
• 2025-2045: City’s 2020 UWMP, Table 4-4
Service Area Population
The population data shown in Table 1 were collected from the following sources:
• Baseline (2010): City’s 2010 UWMP, Table 2-1
• 2015: City’s 2015 UWMP, Table 3-1
• 2020-2045: City’s 2020 UWMP, Table 3-2
Estimated Water Use Efficiency Since Baseline
The “Estimated Water Use Efficiency Since Baseline” was calculated using “Potable Service Area
Demands with Water Use Efficiency” divided by “Service Area Population” and then comparing with 2010
Per Capita Water Use.
Service Area Water Demands without Water Use Efficiency
In Table 2, the “Service Area Demands with Water Use Efficiency” was added to the “Estimated Water
Use Efficiency Since Baseline” to obtain the “Service Area Water Demands without Water Use Efficiency
Accounted For”.
Supplies Contributing to Regional Self-Reliance
For a covered action to demonstrate consistency with the Delta Plan, WR P1 subsection (c)(1)(C) states
that water suppliers must report the expected outcomes for measurable improvement in regional self-
reliance. Table 3 shows expected outcomes for supplies contributing to regional self-reliance both in
amount and as a percentage. The numbers shown in Table 3 represent efforts to improve regional self-
reliance for the City’s entire service area. Supporting narratives and documentation for all the data
provided in Table 3 are described below.
Water Use Efficiency
The water use efficiency information shown in Table 3 is taken directly from Table 1.
Advanced Water Technologies
In the past, the City has used desalinated water as a supply. However, the City’s desalination plant has
been used minimally over the last decade. The desalination plant provides a source of backup and
emergency water supply in case of future State Water Project (SWP) supply reductions or service
outages. Currently, the facility is in a state of needed repair and is not in use and is therefore not
included as a future supply source. The City’s advanced water technologies shown in Table 3 refer to
desalinated water and were from the following sources:
• Baseline (2010): City’s 2005 UWMP, assumed consistent with supply identified for the next three
years (2006-2009) in Table ES-10.
• 2015: City’s 2010 UWMP, Table 4-1
• 2020: City’s 2015 UWMP, Table 6-9
• 2025-2045: Not applicable at this time.
Local and Regional Water Supply and Storage Projects
Other programs and projects that contribute to regional self-reliance shown in Table 3 include the City’s
local groundwater supply. These values come from the following sources:
• Baseline (2010): City’s 2005 UWMP, Table 5-3
• 2015: City’s 2010 UWMP, Table 4-1
• 2020: City’s 2015 UWMP, Table 6-9
• 2025-2045: City’s 2020 UWMP, Table 6-9
4. Summary of Expected Outcomes for Reduced Reliance on the Delta
As stated in WR P1(c)(1)(C), the policy requires that, commencing in 2015, UWMPs include expected
outcomes for measurable reduction in Delta reliance and improved regional self- reliance. WR P1 further
states that those outcomes shall be reported in the UWMP as the reduction in the amount of water used,
or in the percentage of water used, from the Delta.
The expected outcomes for the City’s reduced Delta reliance and regional self-reliance were developed
using the approach and guidance described in Guidebook Appendix C issued in March 2021.
Regional Self-Reliance
The results shown in Table 3 demonstrate that the City’s service area is improving its regional self-
reliance. The following provides a summary of the near-term (2025) and long-term (2045) expected
outcomes for City’s Delta reliance on supplies from the Delta watershed:
• Near-term (2025) – Normal water year regional self-reliance is expected to increase by about 400
AFY from the 2010 baseline (Table 3).
• Long-term (2045) – Normal water year regional self-reliance is expected to increase by
approximately 430 AFY from the 2010 baseline (Table 3).
5. UWMP Implementation
In addition to the analysis and documentation described above, WR P1 subsection (c)(1)(B) requires that
all programs and projects included in the UWMP that are locally cost-effective and technically feasible,
which reduce reliance on the Delta, are identified, evaluated, and implemented consistent with the
implementation schedule. WR P1 (c)(1)(B) states that:
(B) Identified, evaluated, and commenced implementation, consistent with the implementation
schedule set forth in the Plan, of all programs and projects included in the Plan that are locally
cost effective and technically feasible which reduce reliance on the Delta[.]
In accordance with Water Code Section 10631(f), water suppliers must already include in their UWMP a
detailed description of expected future projects and programs that they may implement to increase the
amount of water supply available to them in normal and single-dry water years and for a period of drought
lasting five consecutive years. The UWMP description must also identify specific projects, including a
description of the increase in water supply that is expected to be available from each project, and include
an estimate regarding the implementation timeline for each project or program.
Chapter 6 of the City’s 2020 UWMP summarizes the implementation plan and water portfolio to meet the
region’s water needs.
6
Table 1. Optional Calculation of Water Use Efficiency
Table 2. Calculation of Service Area Water Demands Without Water Use Efficiency
Table 3. Calculation of Supplies Contributing to Regional Self-Reliance
Table 4. Calculation of Reliance on Water Supplies from the Delta Watershed
G
Water Shortage Contingency Plan
2020 Urban Water
Management Plan
Public Draft
SEPTEMBER 2021 CITY OF MORRO BAY
City of Morro Bay ii Water Shortage Contingency Plan
CITY OF MORRO BAY
Water Shortage
Contingency Plan
SEPTEMBER 2021
Prepared by Water Systems Consulting, Inc.
City of Morro Bay i Water Shortage Contingency Plan
TABLE OF CONTENTS
List of Figures ..................................................................................................................................................... ii
List of Tables ...................................................................................................................................................... ii
Water Shortage Contingency Plan ............................................................................................................ 1-1
1.1 Water Supply Reliability Analysis ................................................................................................ 1-3
1.2 Annual Water Supply and Demand Assessment ......................................................................... 1-3
1.2.1 Key Data Inputs and Evaluation Criteria ............................................................................. 1-3
1.2.2 Annual Assessment Procedures .............................................................................................. 1-6
1.3 Six Standard Water Shortage Levels .......................................................................................... 1-6
1.4 Shortage Response Actions ............................................................................................................. 1-8
1.4.1 Demand Reduction ................................................................................................................... 1-8
1.4.2 Supply Augmentation ........................................................................................................... 1-13
1.4.3 Operational Changes .......................................................................................................... 1-13
1.4.4 Additional Mandatory Restrictions .................................................................................... 1-13
1.4.5 Emergency Response Plan ................................................................................................... 1-14
1.4.6 Seismic Risk Assessment and Mitigation Plan ................................................................... 1-14
1.4.7 Shortage Response Action Effectiveness ........................................................................... 1-15
1.5 Communication Protocols .............................................................................................................. 1-15
1.6 Compliance and Enforcement ...................................................................................................... 1-15
1.7 Legal Authorities ............................................................................................................................ 1-16
1.8 Financial Consequences of WSCP .............................................................................................. 1-16
1.9 Monitoring and Reporting ............................................................................................................ 1-17
1.10 WSCP Refinement Procedures .................................................................................................. 1-17
1.11 Special Water Feature Distinction ........................................................................................... 1-17
1.12 Plan Adoption, Submittal, and Availability ............................................................................ 1-18
1.13 Resources and References ......................................................................................................... 1-18
Attachment 1: Adoption Resolution ......................................................................................................... 1-19
Water Shortage Contingency Plan Appendix G
City of Morro Bay ii Water Shortage Contingency Plan
LIST OF FIGURES
Figure 1-1: Table A Allocations that May Lead to a Shortage ............................................................ 1-5
Figure 1-2: Water Shortage Levels Crosswalk ....................................................................................... 1-8
LIST OF T ABLES
Table 1-1. Key Data Inputs for the Annual Assessment. ........................................................................ 1-5
Table 1-2. DWR 8-1 Water Shortage Contingency Plan Levels ......................................................... 1-7
Table 1-3. Estimated Savings by Shortage Level ................................................................................ 1-11
Table 1-4. DWR 8-3 Demand Reduction Actions ................................................................................. 1-12
1-1
Water Shortage Contingency
Plan
This Water Shortage Contingency Plan (WSCP) is a detailed plan for how the
City of Morro Bay (City) intends to predict and respond to foreseeable and
unforeseeable water shortages. A water shortage occurs when the water
supply is reduced to a level that cannot support typical demand at any given
time or reduction in demand is otherwise needed.
This WSCP is used to provide guidance to the City, staff, and the
public by identifying anticipated shortages and response actions to
allow for efficient management of any water shortage with
predictability and accountability. The WSCP is a detailed proposal
for how the City intends to act in the case of an actual water
shortage condition. This WSCP is not intended to provide absolute
direction but rather to provide options to manage water shortages.
Official water shortage declarations by the City may include any
combination of components described in this WSCP.
Water shortages can be triggered by a hydrologic limitation in
supply (i.e., a prolonged period of below normal precipitation),
limitations or failure of supply and treatment infrastructure,
compliance with State mandates for water use efficiency, or a
combination of conditions. Hydrologic or drought limitations tend to
develop and abate more slowly, whereas infrastructure failure tends
to happen quickly and relatively unpredictably. Water supplies may
be interrupted or reduced significantly in several ways, such as
during a drought that limits supplies, an earthquake that damages
water delivery or storage facilities, a regional power outage, or a
toxic spill that affects water quality.
IN THIS SECTION
• Water Supply
Reliability
• Annual Assessment
Procedures
• Shortage Levels
• Shortage Response
Actions
• Communication
Protocols
• Compliance,
Enforcement, and
Legal Authority
• Financial
Consequences
• Implementation
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-2 Water Shortage Contingency Plan
This WSCP describes the following:
Water Supply Reliability Analysis: Summarizes the City’s water supply analysis and reliability
and identifies the key issues that may trigger a shortage condition.
Annual Water Supply and Demand Assessment Procedures: Describes the key data inputs,
evaluation criteria, and methodology for assessing the system’s reliability for the coming year
and the steps to formally declare any water shortage levels and response actions.
Six Standard Shortage Levels: Establishes water shortage levels to clearly identify and
prepare for shortages.
Shortage Response Actions: Describes the response actions that may be implemented or
considered for each level to reduce gaps between supply and demand as well as minimize
social and economic impacts to the community.
Communication Protocols: Describes communication protocols under each level to ensure
customers, the public, and local government agencies are informed of shortage conditions and
requirements.
Compliance and Enforcement: Defines compliance and enforcement actions available to
administer demand reductions.
Legal Authority: Lists the legal documents that grant the City the authority to declare a water
shortage and implement and enforce response actions.
Financial Consequences of WSCP Implementation: Describes the anticipated financial impact
of implementing water shortage levels and identifies mitigation strategies to offset financial
burdens.
Monitoring and Reporting: Summarizes the monitoring and reporting techniques to evaluate the
effectiveness of shortage response actions and overall WSCP implementation. Results are used
to determine if shortage response actions should be adjusted.
WSCP Refinement Procedures: Describes the factors that may trigger updates to the WSCP
and outlines how to complete an update.
Special Water Features Distinctions: Defines considerations and definitions for water use for
decorative features versus pools and spas.
Plan Adoption, Submittal, and Availability: Describes the WSCP adoption process, submittal,
and availability after each revision.
This WSCP was prepared in conjunction with the City’s 2020 Urban Water Management Plan (UWMP)
(Water Systems Consulting Inc., August 2021) and is a standalone document that can be modified as
needed. This document is compliant with the California Water Code (CWC) Section 10632 and
incorporated guidance from the State of California Department of Water Resources (DWR) UWMP
Guidebook 2020 (Department of Water Resources, 2020) and the American Water Works Association
(AWWA) Manual of Water Supply Practices (M60) Drought Preparedness and Response (American
Water Works Association (AWWA), 2019).
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-3 Water Shortage Contingency Plan
1.1 Water Supply Reliability Analysis
This section is consistent with CWC Section 10632(a)(1) and describes the key findings of the water
supply reliability analysis conducted pursuant to CWC Section 10635, which is presented in Chapter 7
of the City’s 2020 UWMP. As part of the 2020 UWMP, water suppliers must perform long-term (2025-
2045) water service reliability assessment to evaluate reliability under normal, single dry year, and five-
year consecutive dry year periods and a short-term (2021-2025) Drought Risk Assessment (DRA) to
evaluate reliability under a five-year consecutive dry year period. Water supply reliability reflects the
City’s ability to meet the water needs of its customers with water supplies under varying conditions. The
analysis considers plausible hydrological and regulatory variability, infrastructure capacity, climate
conditions, and other factors that affect the City’s water supply and demand. The City expects to meet
demands under all water year scenarios while continuing to promote conservation.
The DRA analyzes historical data to allow the City to view patterns and more reliably determine if there
could be any water shortages within a given time frame. The DRA looks at historical consumption data
by customer class, populated from billing records, and historical supply data by source from production
reports. Next, future demand and supply estimates for the planning period are analyzed to determine if
there are any gaps between supply and demand. As mentioned above, the City does not anticipate a
supply shortage. The City is committed to promoting conservation and use of recycled water to
increase its supply portfolio, resiliency, and subsequent reliability as described in Chapter 7 of the 2020
UWMP.
1.2 Annual Water Supply and Demand Assessment
As established by CWC Section 10632.1, urban water suppliers must conduct an Annual Water Supply
and Demand Assessment (Annual Assessment) and submit an Annual Water Shortage Assessment
Report to DWR beginning by July 1, 2022, and every year after. The Annual Assessment is an
evaluation of the short-term outlook for supplies and demands to determine whether the potential for a
supply shortage exists and whether there is a need to trigger a WSCP shortage level and response
actions to maintain supply reliability. The annual report should report the anticipated shortage level,
triggered shortage response actions, compliance and enforcement actions, and communication actions
that will be implemented to mitigate the shortage identified in the Annual Assessment.
1.2.1 Key Data Inputs and Evaluation Criteria
Declarations of water supply conditions will occur annually, or more frequently if conditions warrant it,
after evaluation by City staff and the approval by City Council at a public meeting. Such resolution will
be based on the current shortage situation, the amount of imported water available from the State
Water Project (SWP), and other inputs shown below. The respective water shortage condition dictates
the degree at which shortage response actions are implemented at any time in the City. Some of the
potential reasons to change stages are listed as follows:
• Advancement to subsequent stage
Emergency condition, such as failure of pumping equipment, etc., that requires a
percentage of water consumption reduction greater than that of the current stage.
Regulatory action that requires a percentage reduction or compliance with a water
consumption standard.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-4 Water Shortage Contingency Plan
Failure to maintain target water consumption reduction goal of a given stage.
• Withdrawal to previous stage
Emergency condition has been decreased in severity or resolved, so that the previous target
goal may be utilized.
Regulatory action or standard has been resolved or modified.
Water consumption reductions have been above that necessary to meet target goals of the
current stage.
The City is responsible for supplying water for the health and safety needs of the community. If it
appears that the City may be unable to supply the demands and requirements of the water customers,
the City Council may declare a water supply shortage condition.
Key data inputs and their sources for the Annual Assessments are summarized in Table 8-1 and
described in detail in Section 1.2.2. Evaluation criteria that can be used to determine and declare
severity of supply shortages may include any, or combinations, of the following:
Historic rainfall: reflects changes to supply due to reduced imported SWP availability or
changes to water usage patterns influenced by weather
Existing infrastructure capabilities and plausible constraints: reflects limited production and
distribution capacity due to a variety of factors potentially including, but not limited to, man-
made or natural catastrophic events
Customer demands: reflects current year and one projected single dry year conditions for
comparison to available supplies
SWP Table A Allocation: reflects how much SWP water will be available to the City. Since
SWP is currently the main supply source for the City, the City may consider implementing a
shortage based on available SWP water. Figure 8-1 shows some scenarios in which the
City may want to consider implementing a shortage based on Table A Allocation
percentages in addition to consideration of available stored SWP water.
Stored SWP: Amount of stored SWP available to the City in the San Luis Reservoir reflects
an additional supply that can be used to meet demands.
State mandates: reflects State orders and mandatory compliance with water use efficiency
standards
Other locally applicable evaluation criteria as necessary
A shortage emergency may be declared when it is demonstrated that conditions threaten the ability to
provide water for public health, safety, and welfare of the community. Furthermore, compliance with
State mandates for water use efficiency can be declared during drought or in preparation for future
droughts, such as in response to the Governor’s drought declarations in the 2012-2016 drought with a
subsequent Executive Order B-37-16 and related legislation for Making Conservation a California Way
of Life.
Short-term and long-term supply shortages may be caused by constrained production capacity or
natural or man-made catastrophic emergencies and include, but are not limited to, the following events:
power outages, winter storms, wildfires, earthquakes, structural failures, contamination, and bomb
threats. These types of emergencies may limit the City’s immediate ability to provide adequate water
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-5 Water Shortage Contingency Plan
service to meet the requirements for human consumption, sanitation, and fire protection. Impacts of
such emergencies vary in duration; thus, consumption reduction measures and prohibitions may differ
for short-term and long-term shortages.
Table 1-1. Key Data Inputs for the Annual Assessment.
KEY DATA INPUT SOURCE
Rainfall Monthly rainfall data. Rainfall sources for the City include weather stations at the
Fire Station and WWTP.
SWP Allocation SWP allocation and storage data, input from the City’s staff.
Stored SWP SLOFCWCD, Stored SWP available to the City from the San Luis Reservoir.
Infrastructure capabilities
and plausible constraints
Production data, input from the City’s Water Division staff.
Customer demands Customer billing data, Water equivalency table, 2020 UWMP projections, input
from the City’s Water Division staff.
State mandates Executive Orders from the Governor, State Water Resources Control Board orders
and policies, input from the City’s Water Division staff.
Figure 1-1: Table A Allocations that May Lead to a Shortage
1081
901
721
540
360
180
407
407
407
407
407
407
2025 Demands, 1,334
Stage 1 , 1,272
Stage 2 , 1,128
Stage 3 , 1,001
Stage 4 , 666
Stage 5 , 659
0
200
400
600
800
1000
1200
1400
1600
30%25%20%15%10%5%Available Supply (AFY)Table A allocation %
Table A Allocation That May Lead to a Shortage
SWP Available GW Supply 2025 Demands Stage 1
Stage 2 Stage 3 Stage 4 Stage 5
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-6 Water Shortage Contingency Plan
1.2.2 Annual Assessment Procedures
City staff will perform the Annual Assessment between May-June, or on a more frequent basis if
necessary. Steps to conduct the Annual Assessment are as follows:
1. Staff gather the key inputs, compile historical data, and analyze potential supply and demand
gaps.
2. Staff provide insight on demand trends, water supply conditions, and production capacity.
3. The Public Works Director is charged with submitting an annual water report to the City Council,
Public Works Advisory Board and Planning Commission; reviewing and approving the water
equivalency units required by individual projects; monitoring the water equivalency program
during each year; periodically updating the basis for a water equivalency unit and the water
equivalency table and adjusting them based on significant changes of water consumption by
land use type; and developing operating procedures for the administration of the water
equivalency program and allocating water equivalency units to projects established for the year,
in accordance with the water equivalency program.
4. The Public Works Director, based upon information from the annual water report will make
recommendations to the City Manager about the advancement, withdrawal, or termination of
water shortage levels and will provide reports on water supply and demand status as required.
At a minimum, an “Annual Water Report” will be made available to the Director and City Council
on an annual basis.
5. Based on water supply and water demand information, the City Council may order by resolution
that the appropriate water shortage stage be implemented or terminated in accordance with the
applicable provisions of this WSCP and the relevant provisions of the Morro Bay Municipal
Code, the Government Code, and the CWC. Findings and recommendations are presented to
the City Council.
6. The City Council will declare the level of shortage required at the implementation or termination
of each level and the declaration shall remain in effect until the City Council declares otherwise.
7. When a resolution of the City Council has been issued to change the water stage, the public will
be notified through publication of the resolution in the local newspaper, on the City’s website,
and in the billing statement.
8. The City will develop and/or implement appropriate communication protocols and applicable
response actions.
The Annual Assessment starts in 2022 with the first Annual Assessment Report due to DWR by July 1,
2022.
1.3 Six Standard Water Shortage Levels
This section is consistent with CWC Section 10632(a)(2) and describes the City’s water shortage
levels. New to the CWC, water suppliers must now adopt water shortage levels that equivalently
address six standard water shortage levels. Shortage levels indicate the gap between supply and
demand compared to normal year conditions. DWR standardized six shortage levels to provide a
consistent regional and statewide approach to measure water supply shortage conditions. The six
shortage levels correspond to 10-, 20-, 30-, 40-, 50-percent, and greater than 50 percent shortage
compared to the normal reliability conditions. However, a water supplier may use its own shortage
levels if a crosswalk is included relating its existing shortage levels to the six standard levels. The
crosswalk between the City’s five levels and the standard water shortage levels is shown in Figure 1-2.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-7 Water Shortage Contingency Plan
Table 1-2 shows the City’s five stages and their representative shortages. As shown in Table 1-2, the
water shortage stages include consideration of water shortages up to a Stage 5 Shortage, an
Emergency Water Supply Shortage, which includes a greater than 50% shortage stage with a
corresponding water demand reduction objective of greater than 50 percent. Each stage includes a
water reduction objective, supply conditions and percent of normal water supply, which may vary based
on the nature of water supply emergency. The implementation of the plan is dependent on the cause,
severity, and anticipated duration of the water supply shortage. A combination of water conservation
measures, known as shortage response actions, would be used to reduce water usage in the event of
water shortages.
Table 1-2. DWR 8-1 Water Shortage Contingency Plan Levels
SHORTAGE
LEVEL
PERCENT SHORTAGE
RANGE1
SHORTAGE RESPONSE ACTIONS
1 Up to 5% Normal Water Supply Conditions
2 5 to 15% Moderately Restricted Water Supply Conditions: Required savings may be met
through a combination of quantifiable and unquantifiable actions. The City will
only implement measures to the extent necessary to mitigate a water shortage,
although estimates may indicate a greater savings is obtainable. It is anticipated
that some of the required savings will be met through quantifiable shortage
response actions and the remaining savings will be met through other actions,
including communication and outreach efforts. For a list of all specific shortage
response actions and their potential savings, please refer to Table 1-3.
3 15 to 25% Severely Restricted Water Supply Conditions: Required savings may be met
through a combination of quantifiable and unquantifiable actions. The City will
only implement measures to the extent necessary to mitigate a water shortage,
although estimates may indicate a greater savings is obtainable. It is anticipated
that some of the required savings will be met through quantifiable shortage
response actions and the remaining savings will be met through other actions,
including communication and outreach efforts. For a list of all specific shortage
response actions and their potential savings, please refer to Table 1-3.
4 25 to 50% Critical Water Supply Conditions: Required savings may be met through a
combination of quantifiable and unquantifiable actions. The City will only
implement measures to the extent necessary to mitigate a water shortage,
although estimates may indicate a greater savings is obtainable. It is anticipated
that some of the required savings will be met through quantifiable shortage
response actions and the remaining savings will be met through other actions,
including communication and outreach efforts. For a list of all specific shortage
response actions and their potential savings, please refer to Table 1-3.
5 50% or greater Emergency Water Supply Conditions: Required savings may be met through a
combination of quantifiable and unquantifiable actions. The City will only
implement measures to the extent necessary to mitigate a water shortage,
although estimates may indicate a greater savings is obtainable. It is anticipated
that some of the required savings will be met through quantifiable shortage
response actions and the remaining savings will be met through other actions,
including communication and outreach efforts. For a list of all specific shortage
response actions and their potential savings, please refer to Table 1-3.
1 One stage in the Water Shortage Contingency Plan must address a water shortage of greater than 50%.
NOTE: Percent supply reduction is based upon Morro Bay's 2015 UWMP
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-8 Water Shortage Contingency Plan
Figure 1-2: Water Shortage Levels Crosswalk
1.4 Shortage Response Actions
This section is in accordance with CWC Section 10632(a)(4) and 10632.5(a) and describes the
response actions that may be implemented or considered for each level with emphasis to minimize
social and economic impacts to the community. The City expects to mitigate supply shortages through
a variety of response actions including demand reduction actions, supply augmentation, operational
changes, and mandatory prohibitions.
This WSCP identifies various actions to be considered by the City during water shortage conditions. In
the event of a water shortage, the City will evaluate the cause of the shortage to help inform which
response actions should be implemented. Depending on the nature of the water shortage, the City can
elect to implement a combination of response actions to mitigate the shortage and reduce gaps
between supply and demand. It should be noted that all actions listed for Level 1 apply to Level 2, 3, 4,
and 5. Likewise, Level 2 actions apply to Levels 3, 4, and 5, Level 3 actions apply to Level 4 and 5, and
Level 4 actions apply to Level 5. If necessary, the City may enact additional actions that are not listed in
this WSCP. The following section discusses the potential response actions for each of the City’s five
water supply shortage levels.
1.4.1 Demand Reduction
In order to reduce water demands during water shortage periods, the City Council can declare an
emergency by resolution and thereby authorize the implementation of the WSCP as outlined in the
municipal code. The resolution declares which of the five stages is enacted. The actions to be
undertaken during each stage include, but are not limited to, the following:
Stage 1 Normal Water Supply Conditions - The demand reduction actions for this stage include:
Outdoor water use for washing vehicles, boats, paved surfaces, buildings or other similar uses
shall be attended and have hand-controlled water devices, typically including spring-loaded
shutoff nozzles.
Outdoor irrigation resulting in excessive gutter runoff is prohibited.
Marinas and waterfront installations: all hoses shall have spring-loaded shutoff nozzles or
similar controlling devices.
Restaurants shall serve drinking water only in response to a specific request by the customer.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-9 Water Shortage Contingency Plan
Newly planted landscaping or newly seeded lawns installed prior to the date these mandatory
conservation requirements are imposed may be temporarily exempted from the provisions of
subsection A2 of the City’s 13.04.345 Mandatory Water Conservation Requirements; provided,
the owner/tenant establishes documentation satisfactory to the city conclusively proving the
planting date. Any temporary exemption shall expire when the planting is sufficiently established
to survive without excessive gutter runoff. All other conservation measures remain applicable
during the temporary exemption.
Stage 2 Moderately Restricted Water Supply Conditions - Stage 2 includes actions undertaken in
Stage 1. The demand reduction actions for this stage include:
No water shall be used for cleaning driveways, patios parking lots, sidewalks, streets, or other
such uses except where necessary to protect the public health or safety.
Outdoor Irrigation.
o Outdoor irrigation is prohibited between the hours of ten a.m. and four p.m.
o All consumers are directed to use no more water than necessary to maintain
landscaping.
Restaurants shall serve drinking water only in response to a specific request by a customer.
Newly planted landscaping or newly seeded lawns installed prior to the date these mandatory
conservation requirements are imposed may be temporarily exempted from the provisions of
subsection B1 of the City’s 13.04.345 Mandatory Water Conservation Requirements; provided,
the owner/tenant establishes documentation satisfactory to the city conclusively proving the
planting date. Any temporary exemption shall expire when the planting is sufficiently established
to survive without excessive gutter runoff. All other conservation measures remain applicable
during the temporary exemption.
Stage 3 Severely Restricted Water Supply Conditions - Stage 3 includes all steps taken in prior
stages regarding allotments and mandatory conservation rules. The demand reduction actions for this
stage include:
Outdoor Water Use (Except Irrigation).
o Washing cars by use of a hose is prohibited. Use of a bucket is permitted subject to non-
wasteful applications.
Outdoor Irrigation.
o Irrigation of private and public landscaping, turf areas, and gardens is permitted at even-
numbered addresses only on Wednesdays and Sundays, and at odd-numbered
addresses only on Tuesdays and Saturdays. All consumers are directed to use no more
water than necessary to maintain landscaping.
o Newly planted landscaping or newly seeded lawns installed prior to the date these
mandatory conservation requirements are imposed may be temporarily exempted from
the provisions of subsection (C)(2)(b) of the City’s 13.04.345 Mandatory Water
Conservation Requirements; provided, the owner/tenant establishes documentation
satisfactory to the city conclusively proving the planting date. Any temporary exemption
shall expire when the planting is sufficiently established to survive with twice per week
watering. All other conservation measures remain applicable during the temporary
exemption.
Marinas and Waterfront Installations.
o Use of fresh water to wash down boats, docks, or other incidental activities is prohibited.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-10 Water Shortage Contingency Plan
Emptying and refilling of swimming pools and commercial spas is prohibited except to prevent
structural damage and/or to comply with public health regulations.
Use of potable water for compaction or dust control purposes in construction activities is
prohibited.
Any dysfunctional water fixtures in public or commercial facilities shall be repaired within three
days of receipt of notification by the city.
All visitor-serving facilities in the city shall prominently display these mandatory water
conservation requirements for the benefit and education of visitors to the community. Such
display shall be done in a permanent vandal-resistant manner. Visitor-serving facilities shall
include, but not be limited to, all motels, restaurants, campgrounds, recreational vehicle parks,
mobile home parks, service stations, public restrooms, etc. The owners or managers of such
facilities shall distribute to all customers a printed handout or flyer describing these mandatory
water conservation requirements. Such handouts or flyers shall be provided to the owners or
managers of such facilities by the city free of charge.
Stage 4 Critical Water Supply Conditions - Stage 4 includes all steps taken in prior stages regarding
allotments and mandatory conservation. The demand reduction actions for this stage include:
Outdoor Water Use (Except Irrigation).
o Washing cars by use of a hose is prohibited. Use of a bucket is permitted subject to non-
wasteful applications.
Outdoor Irrigation.
o Irrigation of private and public landscaping, turf areas, and gardens is permitted at even-
numbered addresses only on Wednesdays and Sundays, and at odd-numbered
addresses only on Tuesdays and Saturdays. All consumers are directed to use no more
water than necessary to maintain landscaping.
o Newly planted landscaping or newly seeded lawns installed prior to the date these
mandatory conservation requirements are imposed may be temporarily exempted from
the provisions of subsection (C)(2)(b) of the City’s 13.04.345 Mandatory Water
Conservation Requirements; provided, the owner/tenant establishes documentation
satisfactory to the city conclusively proving the planting date. Any temporary exemption
shall expire when the planting is sufficiently established to survive with twice per week
watering. All other conservation measures remain applicable during the temporary
exemption.
Stage 5 Emergency Water Supply Conditions - Stage 5 includes all steps taken in prior stages
regarding allotments and mandatory conservation. The demand reduction actions for this stage include:
The City Council may impose water-rationing requirements as it deems appropriate with
Sections 13.04.330 and 13.04.340.
In the event of a water supply shortage, the City may implement voluntary and mandatory compliance
measures to induce water conservation. The City’s Municipal Code 13.04.345 includes prohibitions on
various wasteful water uses during a declared water supply shortage (Appendix I). Additionally, the
City may choose to utilize measures that are listed in Table 1-4 at various shortage levels.
Although it is difficult to estimate the volume of savings for each action, the City expects to meet
required reductions through a combination of response actions in conjunction with outreach and
communication efforts to the extent necessary to mitigate any impacts from a water shortage. The
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-11 Water Shortage Contingency Plan
estimated water savings potential summarized in Table 1-3 and Table 1-4 represent a range from
published industry references.
Table 1-3. Estimated Savings by Shortage Level
LEVEL
SUPPLY
CONDITION/SHORTAGE,
%
NORMAL SUPPLY,
AF
REQUIRED SAVINGS1,
AF
ESTIMATED SAVINGS
FROM QUANTIFIABLE
ACTIONS2, AF
ESTIMATED
SAVINGS FROM
UNQUANTIFIABLE
ACTIONS, AF
1 <5% 1,090 55 1 54
2 5-15% 1,090 164 3 161
3 15-25% 1,090 273 348 166
4 25-50% 1,090 545 374 171
5 >50% 1,090 556 374 182
1 Required savings may be met through a combination of quantifiable and unquantifiable actions. The City will only implement measures to the extent
necessary to mitigate a water shortage, although estimates may indicate a greater savings is obtainable. It is anticipated that required savings will be met
through quantifiable shortage response actions and through other unquantifiable actions, including outreach efforts.
2 Quantifiable savings are estimated based on various published sources and are provided as a guide. The degree of implementation of actions can vary in
each stage and can result in a wide range of savings. For a list of all the City’s specific shortage response actions and their maximum potential savings, refer
to Table 1-4.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-12 Water Shortage Contingency Plan
Table 1-4. DWR 8-3 Demand Reduction Actions
SHORTAGE
LEVEL
DEMAND REDUCTION ACTIONS HOW MUCH IS THIS
GOING TO REDUCE
THE SHORTAGE GAP?
ADDITIONAL EXPLANATION
OR REFERENCE
PENALTY, CHARGE, OR
OTHER ENFORCEMENT
1 Expand Public Information
Campaign
No
1 Provide Rebates on Plumbing
Fixtures and Devices
No
1 Provide Rebates for Landscape
Irrigation Efficiency
No
1 Provide Rebates for Turf
Replacement
No
1 Other - Require automatic shut
of hoses
Yes
1 CII - Restaurants may only serve
water upon request
1 AFY Yes
1 Landscape - Restrict or prohibit
runoff from landscape irrigation
Yes
2 Landscape - Limit landscape
irrigation to specific times
2 AFY Watering shall not take place
between the hours of 10:00
am and 4:00 pm
Yes
2 Other - Prohibit use of potable
water for washing hard surfaces
Yes
3 Other - Prohibit vehicle washing
except at facilities using
recycled or recirculating water
Yes
3 Other - Prohibit use of potable
water for construction and dust
control
2 AFY Yes
3 Other water feature or
swimming pool restriction
Draining of pools or refilling
shall be done only for health
or safety reasons.
Yes
3 Landscape - Limit landscape
irrigation to specific days
266 AFY Yes
3 Other - Customers must repair
leaks, breaks, and malfunctions
in a timely manner
77 AFY Expeditious leak repair
(within 72 hrs)
Yes
4 Other - Customers must repair
leaks, breaks, and malfunctions
in a timely manner
26 AFY Expeditious leak repair
(within 24 hrs)
Yes
4 Implement or Modify Drought
Rate Structure or Surcharge
Yes
5 Implement or Modify Drought
Rate Structure or Surcharge
Yes
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-13 Water Shortage Contingency Plan
1.4.2 Supply Augmentation
Given the City’s sufficient supply, the City has no immediate plan to augment supply in response to
shortages. During dry years, the City can utilize stored SWP from the San Luis Reservoir as available
or extract additional groundwater as needed while abiding by any safe yield restrictions on the basin.
1.4.3 Operational Changes
During shortage conditions, operations may be affected by demand reduction responses. Operational
changes to address a short-term water shortage may be implemented based on the severity of the
reduction goal. The City will maximize its groundwater supply by implementing operational strategies
and demand reduction measures. As part of the Annual Assessment process, the City will consider
their operational procedures at the time of a shortage to identify changes that can be implemented to
address water shortage on a short-term basis, include but not limited to:
Expansion of public information campaign to educate and inform customers of the water
shortage emergency and required water savings
Water conservation newsletter and water conservation webpage both include updated water
information, water conservation tips, information about water conservation programs by the City
and other agencies.
Specify the days and/or hours during which water users may irrigate;
Require users to supply their own drinking and cooking water;
Hold all customers to specified maximum usages of water for each category of users;
Take any other action which the City Council deems necessary to protect the public health or
safety, prevent contamination of wells or other sources of water, or ensure an adequate water
supply;
Improve the efficiency of groundwater nitrate treatment by blending and/or matching the well
supply to the input capabilities of the RO system by fine tuning the pump output with the
installation of SCADA or installing a day tank ahead of the WTF.
1.4.4 Additional Mandatory Restrictions
In addition to the mandatory conservation and rationing measures imposed in Stages 1 through 5, the
City Council and the Public Works Director are authorized to take further actions including:
Limit irrigation to specified hours, or prohibit irrigation;
Prohibit the filling or refilling of swimming pools, hot tubs or spas.
Outdoor irrigation resulting in excessive runoff is prohibited
Using potable water for street washing is prohibited
Any use which results in excessive gutter runoff is prohibited
Washing boats, marinas, buildings and outdoor paved areas is prohibited
Emptying and refilling swimming pools and commercial spas is prohibited
The use of potable water for compaction, dust control and construction purposes is prohibited
Any water use that results in gutter runoff is prohibited
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-14 Water Shortage Contingency Plan
1.4.5 Emergency Response Plan
In 2021, the City will complete a Risk and Resilience Assessment (RRA) and Emergency Response
Plan (ERP) in accordance with America’s Water Infrastructure Act (AWIA) of 2018. The purpose of the
RRA and ERP is to meet the AWIA compliance requirements and plan for long-term resilience of the
City’s infrastructure. The RRA will assess the City’s water system to identify critical assets and
processes that may be vulnerable to human and natural hazards, and to identify measures that can be
taken to reduce risk and enhance resilience from service disruption for the benefit of customers. The
RRA identifies and characterizes both infrastructure-specific and system-wide vulnerabilities and
threats and quantifies the consequences of disruption. The RRA also identifies various options (and
constraints) in addressing and mitigating risk. The RRA, in conjunction with the ERP, charts a course
for water system resilience. The RRA also provided various recommendations to increase reliability of
the City’s system. Since critical pieces of infrastructure and specific vulnerabilities are detailed in the
RRA and ERP, the contents of the document are confidential and for use by the City’s staff only.
However, the City can confirm that these plans meet the requirements set forth by AWIA and evaluate
seismic risks and mitigation actions to the City’s infrastructure.
In the event of a water shortage emergency resulting from equipment failure, power outage, or other
catastrophe the City may implement its five-stage plan for conservation, as described above, with either
voluntary or mandatory reductions depending on the severity of the shortage. For severe disasters
(Stage 5), mandatory water use reductions are specified.
A catastrophic supply interruption can occur when the City loses one or more of its main water supplies.
The likelihood of experiencing a simultaneous loss of more than one supply is low. For instance, local
power outages may limit use of groundwater, but the City has stand-by emergency generators to assist
in times of short-term power outages. If the available supply is insufficient to meet the demand and
water quality requirements, an emergency notification will be sent to all water customers, to inform
them of the condition. The message will include the expected duration of the condition, and restrictions
on water use for the duration of the condition. Additional actions which The City will implement during a
catastrophic interruption of water supply due to an earthquake are outlined below:
Assess the condition of the water supply system. Arrange to provide emergency water (e.g., use
of groundwater supplies in the event of non-availability of the SWP water).
Identify priorities including hospitals, schools, and other emergency operation centers.
Complete the damage assessment checklist for reservoirs, water treatment plants, wells and
boosters, system transmission and distribution.
Coordinate with fire district to identify immediate firefighting needs.
Determine any health hazard of the water supply and issue any notification to the customers, if
necessary.
Make arrangements to conduct bacteriological tests, in order to determine possible
contamination.
1.4.6 Seismic Risk Assessment and Mitigation Plan
Disasters, such as earthquakes, can and will occur without notice. Refer to the 2019 San Luis Obispo
County Multi-Jurisdictional Hazard Mitigation Plan (Appendix J) Section 5.3.10 for Seismic Risk
Assessment and Section 7 for Mitigation Plan procedures.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-15 Water Shortage Contingency Plan
1.4.7 Shortage Response Action Effectiveness
The City determines the actual reduction in water use through metering. Data from production meters
and from customer usage meters is used to analyze the water conservation impacts during shortages.
Additionally, customers can track their usage as recorded on their monthly water bill.
Additionally, the City tracks actual reductions in water use based on the water shortage contingency
analysis, by monitoring system demands at each of the City’s five water tank sites using the
Supervisory Control and Data Acquisition (SCADA) system. The SCADA system tracks current
production as well as tank levels giving information on demands. Water use analysis can be performed
on a daily and/or weekly basis depending on monitoring needs, and customer usage is analyzed
monthly.
Estimates of the effectiveness for actions have been included in Table 1-3. It is assumed that a given
required shortage to be addressed in each level can be met by quantifiable measures and the
remainder of shortage can be addressed by unquantifiable measures, both from Table 1-4, operations
changes and additional mandatory restrictions. It is expected that response actions effectiveness is
also a result of successful communication and outreach efforts.
1.5 Communication Protocols
This section is in accordance with CWC Section 10632(a)(5) and describes the communication
protocols and procedures to inform customers, the public, and state and local officials of any current or
predicted water shortages. When a shortage level is enacted or changed, a notice is sent to all water
customers in their water bill and the City’s website updated. Based on the severity of the shortage
condition, the City may also advertise on the local Channel 20 what the shortage conditions are and
ways to save water. The city website contains various brochures and links to ways water customers
can conserve water indoors and outdoors. When the City moves to severely restricted water supply
notices are provided containing the mandatory water restrictions to all visitor serving facilities. The
notice is to be displayed by the facility in a prominent area to educate Morro Bays visitors. The city has
an active Facebook and Nextdoor account and will provide water conservation messaging as deemed
necessary.
1.6 Compliance and Enforcement
The City’s WSCP enforces prohibitions and assesses penalties for prohibited water use violation as
described below:
If customer violates irrigation restrictions, the City shall turn off the customer’s water after giving
written notice to the customer;
If customer flagrantly wastes water, the City shall turn off the customer’s water after giving
written notice to the customer;
If customer fails to repair leaks within three days of notification, the City shall turn off the
customer’s water after giving written notice to the customer;
If limits to maximum usages of water are set and a customer violates that use, the customer
may be assessed a penalty of $3 per hundred cubic feet (hcf) of water used over the maximum.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-16 Water Shortage Contingency Plan
1.7 Legal Authorities
The City’s WSCP is found in the City’s municipal code of ordinances within Chapter 13.04 Water
Service and Rates. Within Chapter 13.04, Section VII Emergencies includes the four subsections which
comprise the City’s WSCP. The WSCP’s four subsections are detailed as:
Section 13.04.320 Determination of low water levels - Grants the City Council authority to
declare when a low water level condition exists.
Section 13.04.330 Council water conservation powers - Identifies the water conservation
powers of the City Council when it is deemed necessary to conserve water during low water
level periods.
Section 13.04.340 Public works director powers - Identifies the legal authority of the Public
Works Director to enforce water conservation measures if the City Council adopts a resolution
declaring a low water level or water system emergency.
Section 13.04.345 Mandatory water conservation requirements - Identifies the mandatory water
conservation requirements for the five increasing levels, or stages, of conservation as the City’s
water supplies are reduced during drought conditions.
Under State law, the City is authorized after declaration of a water shortage emergency to restrict the
water uses and to prohibit the waste or use of the City’s water during such periods for any purpose
other than domestic use, sanitation, fire protection or such other uses as may be determined by the City
Council.
The City shall coordinate with San Louis Obispo County, within which it provides water supply services,
for the possible proclamation of a local emergency, as defined in Section 8558 of the Government
Code.
1.8 Financial Consequences of WSCP
The majority of the operating costs for most water agencies are fixed rather than a function of the
amount of water sold. As a result, when significant conservation programs are undertaken, it is
frequently necessary to raise water rates because the revenue generated is based on lower total
consumption while the revenue required is basically fixed. In order to counteract the financial impact of
conservation, the City may institute Water Shortage Emergency Rates so that lower projected water
consumption would generate added revenue needed by the City.
The Water Shortage Emergency Rates are designed to help the water enterprise remain financially
stable during periods of emergency water shortages and reduced water sales. In 2015, the City Council
held a public hearing and approved Resolution No. 30-15, which adopts water rate increases and
establishes Water Shortage Emergency Rates.
The Water Shortage Emergency Rates help the City remain financially stable during periods of
emergency water shortages and reduced water sales. These rates apply to metered water use.
Pursuant to California law, any applied Water Shortage Emergency Rates will not exceed the City’s
cost of providing service. The City only implements Water Shortage Emergency Rates, as needed, to
support financial stability under a more-severe Stage 4 or Stage 5 water shortage emergency.
The City is also required, by agreement with Central Coast Water Authority, to maintain a financial
reserve of 25 percent of annual operating costs. There is no specific City policy authorizing the use of
such reserves for drought-related financial shortfalls.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-17 Water Shortage Contingency Plan
In the event Water Division funds were significantly affected by drought-related shortfalls, capital
projects could be delayed or an internal service loan from either the General Fund or Wastewater Fund
could be implemented. Internal service loan(s) would require Council approval.
1.9 Monitoring and Reporting
This section is in accordance with CWC Section 10632(a)(9) and describes the reporting requirements
and monitoring procedures to implement the WSCP and track and evaluate the response actions
effectives.
As described in Section 1.2, the City intends to track its supplies and project demands on an annual
basis, and if supply conditions described in Table 1-2 are projected, the City will enact their WSCP.
Monitoring demands is essential to ensure the WSCP response actions are adequately meeting
reductions and decreasing the supply/demand gap. This will help to analyze the effectiveness of the
WSCP or identify the need to activate additional response actions.
The water savings from implementation of the WSCP will be determined based on monthly production
reports which will be compared to the supply from prior months, the same period of the prior year, and/
or the allocation. At first, the cumulative consumption for the various sectors (e.g., residential,
commercial, etc.) will be evaluated for reaching the target demand reduction level. Then, if needed,
individual accounts will be monitored. Weather and other possible influences may be accounted for in
the evaluation.
1.10 WSCP Refinement Procedures
This section is consistent with CWC Section 10632 (a)(10). The WSCP is best prepared and
implemented as an adaptive management plan. The City will use results obtained from monitoring and
reporting procedures (described in Section 1.9) to evaluate any needs for revisions. The WSCP is
used to provide guidance to the Council, staff, and the public by identifying response actions to allow
for efficient management of any water shortage with predictability and accountability.
To maintain a useful and efficient standard of practice in water shortage conditions, the requirements,
criteria, and response actions need to be continually evaluated and improved upon to ensure that its
shortage risk tolerance is adequate, and the shortage response actions are effective and up to date
based on lessons learned from implementing the WSCP. Potential changes to the WSCP that would
warrant an update include, but are not limited to, any changes to shortage level triggers, changes to the
shortage level structure, and/or changes to the response actions. Any prospective changes to the
WSCP would need to be presented at a public hearing, staff would obtain any comments and City
Council would adopt the updated WSCP. The steps to formally amend the WSCP are discussed in
Section 1.12.
Potential refinements will be documented and integrated in the next WSCP update. If new response
actions are identified by staff or public, these could be advertised as voluntary actions until these are
formally adopted as mandatory.
1.11 Special Water Feature Distinction
The CWC Section 10623 (b) now requires that suppliers analyze and define water features that are
artificially supplied with water, including ponds, lakes, waterfalls, and fountains, separately from
swimming pools and spas, as defined in subdivision (a) of Section 115921 of the Health and Safety
Code. Non-pool or non-spa water features may use or be able to use recycled water, whereas pools
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-18 Water Shortage Contingency Plan
and spas must use potable water for health and safety considerations so limitations to pools and spas
may require different considerations compared to non-pool or non-spa water features.
1.12 Plan Adoption, Submittal, and Availability
This section was completed pursuant to CWC Section 10632(a)(c). Because the WSCP is a standalone
document that can be updated as needed.
This 2020 WSCP was presented for adoption to the City Council at the October 12, 2021 Council
meeting. Notifications were sent to all necessary Cities, Counties, and Districts 60 days prior to the
October 12, 2021 public board meeting. To comply with the notice to the public, the City published
notices in the local newspaper two weeks in advance with 5 days between publications. Copies of the
60-day notices and public hearing newspaper notices are provided in Appendix B. The WSCP was also
made available in advance of the public hearing.
The WSCP was formally adopted on October 12, 2021 by the City Council through Resolution 21-XX,
included as Attachment 1. The WSCP was made available to all staff, customers, and any affected
cities, counties, or other members of the public at the City and online within 30 days of the adoption
date.
1.13 Resources and References
American Water Works Association (AWWA). (2019). Manual of Water Supply Practices, Drought
Preparedness and Response.
Department of Water Resources. (2020). Urban Water Management Plan Guidebook 2020.
Water Systems Consulting Inc. (August 2021). City of Morro Bay 2020 UWMP.
Water Shortage Contingency Plan Appendix G
City of Morro Bay 1-19 Water Shortage Contingency Plan
Attachment 1: Adoption Resolution
H
Groundwater Permits
I
City Water Conservation Municipal Code
Created: 2021-04-15 09:39:54 [EST]
(Supp. No. 19)
Page 1 of 3
13.04.345 Mandatory water conservation requirements.
A. Normal Water Supply Conditions.
1. Outdoor water use for washing vehicles, boats, paved surfaces, buildings or other similar uses shall be
attended and have hand-controlled water devices, typically including spring-loaded shutoff nozzles.
2. Outdoor irrigation resulting in excessive gutter runoff is prohibited.
3. Marinas and waterfront installations: all hoses shall have spring-loaded shutoff nozzles or similar
controlling devices.
4. Restaurants shall serve drinking water only in response to a specific request by the customer.
5. Newly planted landscaping or newly seeded lawns installed prior to the date these mandatory
conservation requirements are imposed may be temporarily exempted from the provisions of
subsection A2 of this section; provided, the owner/tenant establishes documentat ion satisfactory to
the city conclusively proving the planting date. Any temporary exemption shall expire when the
planting is sufficiently established to survive without excessive gutter runoff. All other conservation
measures remain applicable during the temporary exemption.
B. Moderately Restricted Water Supply Conditions.
1. Use of water which results in excessive gutter runoff is prohibited.
2. Outdoor water use for washing vehicles, boats, buildings or other similar uses shall be attended and
have hand-controlled water devices, typically including spring-loaded shutoff nozzles.
3. No water shall be used for cleaning driveways, patios parking lots, sidewalks, streets, or other such
uses except where necessary to protect the public health or safety.
4. Outdoor Irrigation.
a. Outdoor irrigation is prohibited between the hours of ten a.m. and four p.m.
b. All consumers are directed to use no more water than necessary to maintain landscaping.
5. Marinas and WaterfrontInstallations.
a. Use of fresh water to wash down boats, docks, or other incidental activities shall be attended and
have hand-controlled devices, typically including spring-loaded shutoff nozzles.
b. All hoses shall have spring-loaded shutoff nozzles or similar controlling devices.
6. Restaurants shall serve drinking water only in response to a specific request by a customer.
7. Newly planted landscaping or newly seeded lawns installed prior to the date these mandatory
conservation requirements are imposed may be temporarily exempted from the provisions of
subsection B1 of this section; provided, the owner/tenant establishes documentation satisfactory to
the city conclusively proving the planting date. Any temporary exemption shall expire when the
planting is sufficiently established to survive without excessive gutter runoff. All other conservation
measures remain applicable during the temporary exemption.
C. Severely Restricted Water Supply Conditions.
1. Outdoor Water Use (Except Irrigation).
a. Use of water which results in excessive gutter runoff is prohibited.
b. No water shall be used for cleaning driveways, patios, parking lots, sidewalks, streets, or other
such uses except where necessary to protect the public health or safety.
Created: 2021-04-15 09:39:54 [EST]
(Supp. No. 19)
Page 2 of 3
c. Washing cars by use of a hose is prohibited. Use of a bucket is permitted subject to nonwasteful
applications.
2. Outdoor Irrigation.
a. Outdoor irrigation is prohibited between the hours of ten a.m. and four p.m.
b. Irrigation of private and public landscaping, turf areas, and gardens is permit ted at even-
numbered addresses only on Wednesdays and Sundays, and at odd-numbered addresses only on
Tuesdays and Saturdays. All consumers are directed to use no more water than necessary to
maintain landscaping.
c. Newly planted landscaping or newly seeded lawns installed prior to the date these mandatory
conservation requirements are imposed may be temporarily exempted from the provisions of
subsection (C)(2)(b) of this section; provided, the owner/tenant establishes documentation
satisfactory to the city conclusively proving the planting date. Any temporary exemption shall
expire when the planting is sufficiently established to survive with twice per week watering. All
other conservation measures remain applicable during the temporary exemption.
3. Marinas and Waterfront Installations.
a. Use of fresh water to wash down boats, docks, or other incidental activities is prohibited.
b. All hoses shall have spring-loaded shutoff nozzles or similar controlling devices.
4. Restaurants shall serve water only in response to a specific request by a customer.
5. Emptying and refilling of swimming pools and commercial spas is prohibited except to prevent
structural damage and/or to comply with public health regulations.
6. Use of potable water for compaction or dust control purposes in construction activities is prohibited.
7. Any dysfunctional water fixtures in public or commercial facilities shall be repaired within three days of
receipt of notification by the city.
8. All visitor-serving facilities in the city shall prominently display these mandatory water conservation
requirements for the benefit and education of visitors to the community. Such display shall be done in
a permanent vandal-resistant manner. Visitor-serving facilities shall include, but not be limited to, all
motels, restaurants, campgrounds, recreational vehicle parks, mobilehome parks, service stations,
public restrooms, etc. The owners or managers of such facilities shall distribute to all customers a
printed handout or flyer describing these mandatory water conservation requirements. Such handouts
or flyers shall be provided to the owners or managers of such facilities by the city free of charge.
D. Critical Water Supply Conditions.
1. Outdoor Water Use (Except Irrigation).
a. Use of water which results in gutter runoff is prohibited.
b. No water shall be used for cleaning driveways, patios, parking lots, sidewalks, streets or other
such uses, except where necessary to protect the public health or safety, and then only by use of
a bucket of water and brush.
c. Washing cars or other mobile vehicles and equipment, including trailers and boats on trailers, is
permitted only by the use of a bucket of water. No use of hoses, even if equipped with a shut -off
nozzle, is permitted. Commercial car washes are exempt from these provisions.
d. Use of potable water to wash buildings, houses or mobilehomes is prohibited.
2. Outdoor Irrigation.
Created: 2021-04-15 09:39:54 [EST]
(Supp. No. 19)
Page 3 of 3
a. Outdoor irrigation is prohibited between the hours of nine a.m. and five p.m.
b. Irrigation of landscaping and gardens is permitted at even-numbered addresses only on
Wednesdays, and at odd-numbered addresses only on Tuesdays. Noncommercial food-crop
gardens are exempt from these restrictions.
3. Marinas and Waterfront Installations.
a. Use of fresh water to wash down boats or docks, or for other incidental activities, is prohibited.
b. All hoses shall have spring-loaded shutoffs or similar devices, and may be used only to fill water
tanks of boats or to flush outboard engines.
4. Restaurants shall serve water only in response to a specific request by a customer.
5. Emptying and refilling swimming pools and spas is prohibited except to prevent structural damage
and/or to comply with public health regulations.
6. Use of potable water for compaction or dust-control purposes in construction activities is prohibited.
7. Any dysfunctional water fixtures in public commercial facilities shall be repaired immediately.
8. All visitor-serving facilities in the city shall prominently display these mandatory water conservation
requirements for the benefit and education of visitors to the community. Such display shall be done in
a permanent, vandal-resistant manner. Visitor-serving facilities shall include, but not be limited to, all
motels, restaurants, campgrounds, recreational vehicle parks, mobilehome parks, service stations,
public restrooms, etc. The owners or managers of such facilities shall distribute to all customers a
printed handout or flyer describing these mandatory water conservation requirements. Such handouts
or flyers shall be provided to the owners or managers of such facilities by the city free of charge.
E. Emergency Water Supply Conditions. The city council may impose water rationing requirements as it de ems
appropriate in accordance with Sections 13.04.330 and 13.04.340.
(Ord. 417 § 2, 1992; Ord. 381, 1990; Ord. 374 §§ 2 — 4, 1990; Ord. 347 § 3, 1989)
J
San Luis Obispo Country Multi-
Jurisdictional Hazard Mitigation Plan
Omitted from Final to reduce file size and total pages.
A copy of the San Luis Obispo County Multi-
Jursdictional Hazard Mitigation Plan (October 2019)
can be found by following the link below:
https://www.slocounty.ca.gov/Departments/Planning-
Building/Forms-Documents/Plans-and-
Elements/Elements/Local-Hazard-Mitigation-Plan/San-
Luis-Obispo-County-Multi-Jurisdictional-Hazard.pdf