Vernon City Council
June 16, 2026

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Imported Water
The City receives treated surface water from MWD through CBMWD. Water quality from MWD relating to supply reliability is addressed separately in MWD’s 2025 Regional Urban Water Management Plan.

Central Basin
The City produces groundwater from the Central Basin. The groundwater has been impacted by contamination, including by iron and manganese. However, the City has been reviewing appropriate treatment (blending and/or treatment facilities).

WATER SERIVCE RELIABILITY ASSESSMENT
CWC 10635.
(a) Every urban water supplier shall include, as part of its urban water management plan, an assessment of the reliability of its water service to its customers during normal, dry, and multiple dry water years. This water supply and demand assessment shall compare the total water supply sources available to the water supplier with the long-term total projected water use over the next 20 years, in five-year increments, for a normal water year, a single dry water year, and a drought lasting five consecutive water years. The water service reliability assessment shall be based upon the information compiled pursuant to Section 10631, including available data from state, regional, or local agency population projections within the service area of the urban water supplier.

Information regarding the reliability of the City’s water supplies is based on the historical precipitation data in the Central Basin area. Historical annual precipitation in the Central Basin area is discussed in Section 3.3 and is based on historical data collected from Station 049660 (Whittier City Yard, California). Furthermore, Section 4.2.5.6 of this Plan notes that potential future climate change impacts may result in an increase in the average annual precipitation within the City’s service area, thus indicating use of historical Resolution No. 2026-033

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data is a reasonable and conservative approach. As indicated in Section 3.3, the historical average rainfall in the vicinity of the City’s service area is 14.5 inches. CY 2020 represents an average or normal water year for the City in which the total amount of rainfall was similar to the historical average rainfall. A single dry year for the City was represented in CY 2017, in which the total amount of rainfall was below the historical average rainfall. A five consecutive year drought period for the City is represented from CY 2011 to CY 2015, where the total amount of rainfall during each of these years was less than the historical average rainfall. Table 7-1 summarizes these “base years” for average, single dry, and five consecutive year drought and provides the total amount of water supplies available to the City during those base years. The following discussion assesses the water service reliability of the City’s water supply sources.

Water Service Reliability - Imported Water
The City’s treated imported water supplies from MWD, through CBMWD, may be impacted during a multi-year drought or other conditions which limits MWD from delivering sufficient water supplies to all of its member agencies, and consequently to the City. In anticipation of such a reduction in supplies, MWD developed a WSAP as discussed in Section 6.2.1. The WSAP provides a means of equitably providing reduced water supplies to each of MWD’s member agencies for up to 10 levels of reduction representing up to a 50 percent reduction.

Water Service Reliability - Groundwater

Central Basin Groundwater Production
The Central Basin groundwater supplies are managed by the Central Basin Watermaster (WRD), as discussed in Section 6.2.2. During a normal year (CY 2020), the City met about 82 percent of its total demands with supplies from the Central Basin. During a single Resolution No. 2026-033

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dry year (CY 2017), the City met about 85 percent of its total demands with supplies from the Central Basin. During a five consecutive year drought multiple dry year period (CY 2011 to CY 2015), the City met between 79 and 84 percent of its total demands with supplies from the Central Basin.

Water Service Reliability Summary
Table 7-1 shows the water supplies during the base years (for average year, single dry year and a five consecutive year drought). As a result of the City’s diverse water supply portfolio, water supplies may be re-apportioned during a five consecutive year drought to meet the City’s water demands.

7.2.1 WSRA YEAR-TYPE CHARACTERIZATION

7.2.1.1 TYPES OF YEARS
The City’s base years for an average year, a single dry year, and a five consecutive year drought are discussed in Section 7.2 and are summarized in Table 7-1. As indicated in Chapter 6, the City’s water supplies sources have been sufficient in meeting the City’s historical water demands during an average year, a single dry year, and a five consecutive year drought. An average year was based on a historical year during the past 15 years with a total precipitation similar to the historical average precipitation in the vicinity of the City’s service area. Because a single dry year or a five consecutive year drought period will not compromise the City’s ability to provide a reliable supply of water to its customers, a single dry year in this Plan was selected based on one of the driest years during the past 15 years. The five consecutive year drought period was based on a period of five consecutive dry years during the past 15 years.

As indicated in Section 3.3, the historical average rainfall in the vicinity of the City’s service area is 14.5 inches. CY 2017 represents an average or normal water year for the City in Resolution No. 2026-033

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which the total amount of rainfall was similar to the historical average rainfall. A single dry year for the City was represented in CY 2017, in which the total amount of rainfall was less than the historical average rainfall. A five consecutive year drought period for the City is represented from CY 2011 to CY 2015, where the total amount of rainfall during each of these years was less than the historical average rainfall. Table 7-1 summarizes these “base years” for an average year, a single dry year and a five consecutive year drought period and provides the total amount of water supplies available to the City during those base years.

7.2.1.2 SOURCES FOR WATER DATA
The monthly historical average temperatures (including minimum and maximum), monthly historical average rainfall, and monthly ETo in the vicinity of the City’s service area are discussed in Section 3.3. Historical climate information was obtained from the WRCC, DPW, and from DWR’s CIMIS.

7.2.2 WSRA SUPPLY AND DEMAND COMPARISON
CWC 10635.
(a) Every urban water supplier shall include, as part of its urban water management plan, an assessment of the reliability of its water service to its customers during normal, dry, and multiple dry water years. This water supply and demand assessment shall compare the total water supply sources available to the water supplier with the long-term total projected water use over the next 20 years, in five-year increments, for a normal water year, a single dry water year, and a drought lasting five consecutive water years. The water service reliability assessment shall be based upon the information compiled pursuant to Section 10631, including available data from state, regional, or local agency population projections within the service area of the urban water supplier.

The City primarily obtains its water supplies from groundwater wells located in the Central Basin. As discussed in Section 7.3 and shown in Table 7-2, Table 7-3, and Table 7-4, each of the City’s water supply sources share the same base years. As previously Resolution No. 2026-033

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discussed in Section 7.2.1, a single dry year or a five consecutive year drought period will not compromise the City’s ability to provide a reliable supply of water to its customers.

The City’s projected normal year water demands over the next 25 years are discussed in Section 4.2.6. The ratio of total water supplies (including potable and recycled water supplies) available to the City during a historical average year in CY 2020 (or 7,494 AF) and during a historical single dry year in CY 2017 (or 7,744 AF) was used to estimate the City’s projected water demands during single dry years. The ratio of water supplies available to the City during a historical average year in CY 2020 (or 7,494 AF) and a historical a five consecutive year drought period from CY 2011 to CY 2015 (or 8,705 AF, 8,672 AF, 8,756 AF, 8,395 AF, and 8,217 AF, respectively) was used to estimate the City’s projected water demands during a five consecutive year drought period. The City’s projected dry year water supplies over the next 25 years were based on the minimum supplies needed by the City to meet projected single-dry year demands. Table 7-2, Table 7-3, and Table 7-4 summarize the City’s projected water demands and supplies over the next 25 years in five-year increments, including during normal years, single dry years, and a five consecutive year drought periods. These tables indicate the City can meet water demands during normal years, single dry years, and a five consecutive year drought periods over the next 25 years.

7.2.2.1 NORMAL YEAR
Table 7-2 summarizes the City’s projected water demands and supplies over the next 25 years in five-year increments during normal years. Table 7-2 indicates the City can meet water demands during normal years over the next 25 years.

Resolution No. 2026-033

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7.2.2.2 WATER SERVICE RELIABILITY – SINGLE DRY YEAR
Table 7-3 summarizes the City’s projected water demands and supplies over the next 25 years in five-year increments during single dry years. Table 7-3 indicates the City can meet water demands during single dry years over the next 25 years.

7.2.2.3 FIVE CONSECUTIVE DRY YEARS
Table 7-4 summarizes the City’s projected water demands and supplies over the next 25 years in five-year increments during five consecutive year drought periods. Table 7-4 indicates the City can meet water demands during five consecutive year drought periods over the next 25 years.

7.2.3 WSRA DESCRIPTION OF MANAGEMENT TOOLS AND

OPTIONS
CWC 10620.
(f) An urban water supplier shall describe in the plan water management tools and options used by that entity that will maximize resources and minimize the need to import water from other regions.

As noted in Section 6.2.2, the Central Basin is managed by the WRD. During the period of management under the Judgment, significant drought events have occurred. In each drought cycle the Central Basin has been managed to maintain water levels. Therefore, based on historical and on-going management practices, the City will be able to rely on the Central Basin for adequate supply over the next 25 years under single dry years and a five consecutive year drought periods.

Resolution No. 2026-033

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Section 6.2.2 provides a description of the management of groundwater resources in the Central Basin, as well as information on basin management. Chapter 6 also demonstrates the management structure of the Central Basin provides a reliable source of groundwater supply for the City during a normal year, a single-dry year and a five consecutive year drought. Historical data indicates the Central Basin has been well managed for the full period of the adjudication, resulting in a stable and reliable water supply. Basin management changes are discussed in Section 6.2.2 and include increased direct use of recycled water (see Section 6.2.5) and the planned use of treated recycled water for groundwater replenishment in the Central Basin to reduce the need to import water from other regions. Therefore, the groundwater supplies in the Central Basin are deemed reliable.

DROUGHT RISK ASSESSMENT
CWC 10612.
“Drought Risk Assessment” means a method that examines water shortage risks based on the driest five-year historic sequence for the agency’s water supply, as described in subdivision (b) of Section 10635.

CWC 10635.
(b) Every urban water supplier shall include, as part of its urban water management plan, a drought risk assessment for its water service to its customers as part of information considered in developing the demand management measures and water supply projects and programs to be included in the urban water management plan. The urban water supplier may conduct an interim update or updates to this drought risk assessment within the five-year cycle of its urban water management plan update. The drought risk assessment shall include each of the following:
(1) 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 five consecutive water years, starting from the year following when the assessment is conducted.

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(2) A determination of the reliability of each source of supply under a variety of water shortage conditions. This may include a determination that a particular source of water supply is fully reliable under most, if not all, conditions.
(3) A comparison of the total water supply sources available to the water supplier with the total projected water use for the drought period.
(4) 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.

The City’s source of supplies consist of groundwater from the Central Basin (which is managed by the Central Basin Watermaster), treated imported water purchased through CBMWD and managed by the Metropolitan Water District of Southern California, and recycled water. The following discussion provides a Drought Risk Assessment which assesses the City’s water supply reliability over a five consecutive year drought period.

The City’s DRA incorporates a five consecutive year drought from CY 2026 through CY 2030 and includes a review of water supplies, water uses, and water supply reliability.

7.3.1 DRA, DATA, METHODS, AND BASIS FOR WATER SHORTAGE

CONDITIONS
The City’s DRA was prepared using historical production data from the City’s water supply sources. The following assumptions were considered during the preparation of the City’s DRA for each year of the five consecutive year drought.  The five consecutive year drought period associated with the 2025 Plan is based on five consecutive dry years from CY 2026 through CY 2030.  The projected water supplies available during each year of this five consecutive year drought are assumed to be identical to the water supplies produced during each year between CY 2011 to CY 2015 (which represents the most recent and historical five consecutive year drought).

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 The projected demands during this five consecutive year drought are based on water demands from CY 2020 (a normal year) which were adjusted based on projected population over the next five years along with the ratio of the normal year demands to actual demands over each year of the most recent and historical five consecutive year drought period (from CY 2011 to CY 2015).  The projected demands were compared to the projected supplies to identify potential water supply deficits which may require implementation of the Water Shortage Contingency Plan (discussed further in Chapter 8).

The following methodologies were considered during the preparation of the City’s DRA during for each year of the five consecutive year drought:
 Drought Year 1: The region had experienced an average to above average year of precipitation in the prior year. Water use in the prior year had been below average due to a reduce need for outdoor water use, the groundwater basin had been replenished from above average local stormwater runoff, and imported water supplies were not restricted.
 Drought Year 2: The region experienced a second year of below average precipitation and runoff. Retail customers increase water use for outdoor irrigation to compensate for lack of precipitation. Groundwater and imported water supplies have not been impacted.
 Drought Year 3: The region experienced a third year of below average precipitation and runoff. Retail customers increase water use for outdoor irrigation to compensate for lack of precipitation. Groundwater and imported water supplies have not been impacted. However, there is an increased demand on both groundwater and treated imported water.
 Drought Year 4: The region experienced a fourth year of below average precipitation and runoff. Groundwater supplies have not been impacted. However, there is an increased demand on groundwater.

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 Drought Year 5: Fifth year of below average precipitation and runoff. Groundwater supplies have not been impacted. However, there is an increased demand on groundwater.

7.3.2 DRA INDIVIDUAL WATER SOURCE RELIABILITY
The City’s DRA incorporates a five consecutive year drought based on five consecutive dry years commencing in CY 2026. The quantity of water supplies available for each year during this five consecutive year drought period included in the City’s DRA is assumed to be the same as the quantity of water supplies produced by the City (i.e. demands) during the most recent and historical five consecutive year drought which occurred from CY 2011 to CY 2015. Production data for those years have been tabulated in Section 6.1. The following describes the anticipated reliability of each water source for each year of the five consecutive year drought based on recent experience.

Groundwater
The City produces groundwater supplies from the Central Basin which is actively managed by the Central Basin Watermaster, as described in Section 6.2. The Central Basin is adjudicated; however, the water rights are fixed each year. Consequently, a Central Basin producer cannot produce in excess of its own water rights or rights it may have leased from others. The City also has access to water supplies from treated imported water and recycled water. The quantity of groundwater used (and reliably available) during the most recent and historical five consecutive year drought period have been tabulated in Section 6.1. The City manages its water supply portfolio to optimize the water supplies available each year and to avoid a water supply shortage. The City also had the ability to systematically implement aspects of its Water Shortage Contingency Plan (see Chapter 8). As a result of these collective actions (and experience during prior consecutive five-year droughts), the City does not anticipate a water supply shortage.

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Imported Water
The City can obtain imported water from the Metropolitan Water District of Southern California through CBMWD. Section 6.2.1 describes the planning conducted by the Metropolitan Water District of Southern California regarding treated imported water supplies available to the City. The reliability of MWD’s supplies is also discussed in its 2025 Regional UWMP and is incorporated by reference. The City purchases treated imported water which is delivered directly within its distribution system. The City’s purchases of treated, imported water over the past 15 years have been tabulated in Section 6.1. In the event of a drought which limits imported water supplies, the City will rely on its groundwater production.

The imported water purchases by the City during the most recent and historical five consecutive year drought period have been tabulated in Section 6.1. Because the City’s DRA assumes the most recent and historical five consecutive year drought scenario will be repeated over the next five years, it is assumed the quantity of treated imported water supplies purchased during the most recent and historical five consecutive year drought scenario will be available. Furthermore, this constitutes the minimum amount of treated imported water which may be available in a future five consecutive year drought absent MWD’s programs which it has since implemented.

Recycled Water
The City has a recycled water distribution system which it has developed to reduce demands on its potable water supplies as described in Section 6.2.5. The availability of recycled water supplies is not adversely impacted by drought conditions and are locally available.

The quantity of recycled water used during the most recent and historical five consecutive year drought period have been tabulated in Section 6.1. The quantity of recycled water Resolution No. 2026-033

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available during each year of the most recent and historical five consecutive year drought is expected to be available during a future five consecutive year drought.

Summary
The City’s water system has experienced a prior five consecutive year drought with no limitation to its collective water supplies. However, the cost of those water supplies may have increased based on the mix of supplies which are used. Consequently, the City has the ability to enact varying Demand Management Measures (see Chapter 9) to help educate its customers and provide an economic incentive for the retail customers to reduce their water consumption.

7.3.3 DRA TOTAL WATER SUPPLY AND USE COMPARISON
Gross water use for the projected five consecutive year drought is shown on Table 7-5.

Section 7.3.2 describes the water source reliability for each source of supply the City will rely on during a five consecutive year drought. The annual quantities are summed and are also provided on Table 7-5. When necessary, the City can implement various water shortage levels of its Water Shortage Contingency Plan (as discussed in Chapter 8) in order to reduce its water demands. As shown in Table 7-5, assuming no additional water supply benefits will be available from groundwater supplies, the City can implement various stages of its Water Shortage Contingency Plan to balance water demands with available supplies during each year of the projected five consecutive year drought.

OPTIONAL PLANNING TOOL WORKBOOK
DWR has deemed the “Planning Tool Worksheet” as optional and the City is not required by DWR to use the tool. The City has provided sufficient water supplies to its customers, including during long-term droughts and years with historically high water demands. The City has also been able to provide water service to meet maximum day water demands Resolution No. 2026-033

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for these years, including during the summer months. The City obtains the majority of its water supplies from a managed groundwater basin which is not subject to seasonal fluctuation. Consequently, an evaluation regarding water supplies on a monthly basis was not considered.

SUBMITTAL TABLES
The applicable standardized Submittal Tables referenced within Chapter 7 are provided below.

7.4.1 OPTIONAL TABLE 7-1: BASIS OF WATER-YEAR DATA (WSRA) Table 7-1 Basis of Water-Year Data (Reliability Assessment) Resolution No. 2026-033

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7.4.2 TABLE 7-2: NORMAL-YEAR SUPPLY AND USE COMPARISON
Table 7-2 Normal-Year Supply and Use Comparison

2030 (AF) 2035 (AF) 2040 (AF) 2045 (AF) 2050 (AF)
Supply totals
(autofill from Submittal
Table 6-9 R)
7,552 7,889 7,889 7,890 7,891
Use totals
(autofill from Submittal
Table 4-2 R)
7,552 7,889 7,889 7,890 7,891
Surplus/(shortfall) 0 0 0 0 0
WSCP - supply
augmentation benefit
WSCP - use reduction
savings benefit
Revised Surplus/(shortfall)
OPTIONAL Planned WSCP Actions
Submittal Table 7-2 Retail: Normal Year Supply and Use Comparison Water Code Section 10635 (a)
NOTES:

DWR NOTES : Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3.

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7.4.3 TABLE 7-3: SINGLE-DRY-YEAR SUPPLY AND USE COMPARISON Table 7-3 Single-Dry-Year Supply and Use Comparison

Supply totals 7,805 8,153 8,153 8,154 8,155
Use totals 7,805 8,153 8,153 8,154 8,155
Surplus/(shortfall) 0 0 0 0 0
WSCP - supply
augmentation benefit
WSCP - use reduction
savings benefit
Revised
Surplus/(shortfall)
2050 (AF)
DWR NOTES : Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3.

NOTES
Submittal Table 7-3 Retail: Single Dry Year Supply and Use Comparison Water Code Section 10635(a)
OPTIONAL Planned WSCP Actions
2030 (AF) 2035 (AF) 2040 (AF) 2045 (AF)
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7.4.4 TABLE 7-4: MULTIPLE DRY YEARS SUPPLY AND USE COMPARISON Table 7-4 Multiple Dry Years Supply and Use Comparison
2030 (AF) 2035 (AF) 2040 (AF) 2045 (AF) 2050 (AF)
Supply totals 8,773 9,164 9,165 9,165 9,166
Use totals 8,773 9,164 9,165 9,165 9,166
Surplus/(shortfall) 0 0 0 0 0
WSCP - supply augmentation benefit
WSCP - use reduction savings benefit
Revised Surplus/(shortfall)
Supply totals 8,740 9,129 9,130 9,131 9,132
Use totals 8,740 9,129 9,130 9,131 9,132
Surplus/(shortfall) 0 0 0 0 0
WSCP - supply augmentation benefit
WSCP - use reduction savings benefit
Revised Surplus/(shortfall)
Supply totals 8,824 9,217 9,218 9,219 9,220
Use totals 8,824 9,217 9,218 9,219 9,220
Surplus/(shortfall) 0 0 0 0 0
WSCP - supply augmentation benefit
WSCP - use reduction savings benefit
Revised Surplus/(shortfall)
Supply totals 8,460 8,837 8,838 8,839 8,840
Use totals 8,460 8,837 8,838 8,839 8,840
Surplus/(shortfall) 0 0 0 0 0
WSCP - supply augmentation benefit
WSCP - use reduction savings benefit
Revised Surplus/(shortfall)
Supply totals 8,281 8,650 8,651 8,652 8,652
Use totals 8,281 8,650 8,651 8,652 8,652
Surplus/(shortfall) 0 0 0 0 0
WSCP - supply augmentation benefit
WSCP - use reduction savings benefit
Revised Surplus/(shortfall)
Submittal Table 7-4 Retail: Multiple Dry Years Supply and Use Comparison Water Code Section 10635(a)
OPTIONAL Planned WSCP Actions
Third year
Fifth year
DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3.

OPTIONAL Planned WSCP Actions
OPTIONAL Planned WSCP Actions
Fourth year OPTIONAL Planned WSCP Actions
NOTES:

First year
Second year OPTIONAL WSCP Actions
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7.4.5 TABLE 7-5: FIVE-YEAR DROUGHT RISK ASSESSMENT
Table 7-5 Five-Year Drought Risk Assessment
2026 Total
Total Water Use (AF) 6,289
Total Supplies (AF) 8,705
Surplus/Shortfall w/o WSCP Action 2,416
WSCP - supply augmentation benefit (AF)
WSCP - use reduction savings benefit (AF)
Revised Surplus/(shortfall)
2027 Total
Total Water Use (AF) 6,884
Total Supplies (AF) 8,672
Surplus/Shortfall w/o WSCP Action 1,788
WSCP - supply augmentation benefit (AF)
WSCP - use reduction savings benefit (AF)
Revised Surplus/(shortfall)
2028 Total
Total Water Use (AF) 7,575
Total Supplies (AF) 8,756
Surplus/Shortfall w/o WSCP Action 1,181
WSCP - supply augmentation benefit (AF)
WSCP - use reduction savings benefit (AF)
Revised Surplus/(shortfall)
2029 Total
Total Water Use (AF) 7,862
Total Supplies (AF) 8,395
Surplus/Shortfall w/o WSCP Action 533
WSCP - supply augmentation benefit (AF)
WSCP - use reduction savings benefit (AF)
Revised Surplus/(shortfall)
2030 Total
Total Water Use (AF) 8,281
Total Supplies (AF) 8,217
Surplus/Shortfall w/o WSCP Action (64)
WSCP - supply augmentation benefit (AF)
WSCP - use reduction savings benefit (AF) 64
Revised Surplus/(shortfall) 0
NOTES:

DWR NOTES: Units of measure (AF, CCF, MG) must remain
consistent throughout the UWMP as reported in Submittal Table 2-3.

Submittal Table 7-5 Retail: Five-Year Drought Risk
Assessment
Water Code Section 10635(b)(3)
OPTIONAL Planned WSCP Actions (use reduction and supply augmentation)
OPTIONAL Planned WSCP Actions (use reduction and supply augmentation)
OPTIONAL Planned WSCP Actions (use reduction and supply augmentation)
OPTIONAL Planned WSCP Actions (use reduction and supply augmentation)
OPTIONAL Planned WSCP Actions (use reduction and supply augmentation)
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CHAPTER 8

WATER SHORTAGE CONTINGENCY PLAN
LAY DESCRIPTION – CHAPTER 8

WATER SHORTAGE CONTINGENCY PLAN
Chapter 8 (Water Shortage Contingency Plan) of the City’s 2025 Plan discusses and provides the following:
 The City’s Water Shortage Contingency Plan is a detailed approach which presents how the City intends to act, or respond, in the case of an actual water shortage contingency.
 Preparation of the City’s “Annual Water Supply and Demand Assessment” (or Annual Assessment) is discussed. The City is required to submit annually an Annual Assessment. The Annual Assessment includes a review of the City’s “unconstrained” water demands for the current year and for a potential upcoming single dry year. Unconstrained water demands represent the City’s water demands prior to any “response actions” the City may invoke pursuant to the City’s Water Shortage Contingency Plan.
 The City will manage water supplies to minimize the adverse impacts of water shortages. The City’s plan for water usage during periods of shortage is designed to incorporate six standard water shortage levels corresponding to progressive ranges from up to a 10, 20, 30, 40, and 50 percent shortage, and greater than a 50 percent shortage.
 For each declared water supply shortage level, customers will be required to reduce their consumption by the percentage specified in the corresponding water supply shortage level.

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 For each declared water supply shortage level, the City has established response actions to reduce demand on water supplies and to reduce any shortage gaps in water supplies. These demand reduction actions include irrigation and other outdoor use restrictions, rate structure changes, and other water use prohibitions.  The operational changes the City will consider in addressing water shortages on a short-term basis are discussed and include improved monitoring, analysis, and tracking of customer water usage to enforce demand reduction measures.  The City’s Emergency Response Plan is summarized. The Emergency Response Plan provides the management, procedures, and designated actions the City and its employees will implement during emergency situations (including catastrophic water shortages) resulting from natural disasters, system failures, and other unforeseen circumstances.
 The preparation of the City’s seismic risk assessment and mitigation plan is discussed. The locations of earthquake faults in the vicinity of the City’s water service area are provided.
 The effectiveness of the shortage response actions for each of the City’s standard water shortage levels is presented. The City has been able to provide sufficient water supplies to its customers, including during long-term droughts and years with historically high water demands.
 The communication protocols implemented by the City when it declares any water shortage level are presented.
 The compliance and enforcement procedures associated with City’s standard water shortage levels are presented.
 The legal authorities associated with City’s standard water shortage levels are presented.
 The financial consequences associated with City’s standard water shortage levels are presented.
 The City will evaluate the need for revising the Water Shortage Contingency Plan in order to resolve any water shortage gaps, as necessary. The steps necessary Resolution No. 2026-033

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for the City to adopt and amend its Water Shortage Contingency Plan are presented.

The following Water Shortage Contingency Plan includes references to Chapters and Sections from the City of Vernon’s 2025 Urban Water Management Plan:

WATER SUPPLY RELIABILITY ANALYSIS
CWC 10632.
(a)(1) The analysis of water supply reliability conducted pursuant to Section 10635.

CWC 10632.5.
(a) In addition to the requirements of paragraph (3) of subdivision (a) of Section 10632, beginning January 1, 2020, the plan shall include a seismic risk assessment and mitigation plan to assess the vulnerability of each of the various facilities of a water system and mitigate those vulnerabilities.

The City’s sources of supply were discussed in Section 6.2 of the 2025 Plan and consist of groundwater produced from the Central Basin, treated imported water purchased from MWD through CBMWD, and recycled water supplies. The reliability of the various sources of supply are discussed in Chapter 7 of the 2025 Plan. Imported water supplies (treated) may be impacted in the event MWD implements its WSAP due to a water supply shortage.

Finally, recycled water is locally generated and is not impacted by drought conditions. A seismic risk assessment and mitigation plan is discussed in Section 8.4.6.

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ANNUAL WATER SUPPLY AND DEMAND ASSESSMENT PROCEDURES
CWC 10632.
(a) Every urban water supplier shall prepare and adopt a water shortage contingency plan as part of its urban water management plan that consists of each of the following elements CWC 10632.
(a)(2) The procedures used in conducting an annual water supply and demand assessment that include, at a minimum, both of the following:
(A) The written decision-making process that an urban water supplier will use each year to determine its water supply reliability.
(B) The key data inputs and assessment methodology used to evaluate the urban water supplier’s water supply reliability for the current year and one dry year, including all of the following:
(i) Current year unconstrained demand, considering weather, growth, and other influencing factors, such as policies to manage current supplies to meet demand objectives in future years, as applicable.
(ii) Current year available supply, considering hydrological and regulatory conditions in the current year and one dry year. The annual supply and demand assessment may consider more than one dry year solely at the discretion of the urban water supplier.
(iii) Existing infrastructure capabilities and plausible constraints. (iv) A defined set of locally applicable evaluation criteria that are consistently relied upon for each annual water supply and demand assessment. (v) A description and quantification of each source of water supply.

CWC 10632.1.

An urban water supplier shall conduct an annual water supply and demand assessment pursuant to subdivision (a) of Section 10632 and, on or before July 1 of each year, submit an annual water shortage assessment report to the department with information for anticipated shortage, triggered shortage response actions, compliance and enforcement actions, and communication actions consistent with the supplier’s water shortage contingency plan. An urban water supplier that relies on imported water from the State Water Project or the Bureau of Reclamation shall submit its annual water supply and demand assessment within 14 days of receiving its final allocations, or by July 1 of each year, whichever is later.

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By July 1st of every year, the City is required to submit an “Annual Water Supply and Demand Assessment” (Annual Assessment) in accordance with DWR’s guidance and requirements. The Annual Assessment includes a review of the City’s unconstrained water demands (i.e. water demands prior to any projected response actions the City may trigger under this Water Shortage Contingency Plan) for the current year and the upcoming (potential single dry) year. The Annual Assessment also includes also include information regarding anticipated shortages, triggered shortage response actions, compliance and enforcement actions, and communication actions consistent with the City’s Water Shortage Contingency Plan.

During the preparation of each Annual Assessment, the City will evaluate the adequacy of its water supplies for the current and upcoming years. The evaluation will include a review of water supplies for at least a single dry year.

8.2.1 DECISION-MAKING PROCESS
The City produces groundwater supplies from the Central Basin as its primary source of water supply. Consequently, during the third quarter of each fiscal year the City will review its water demands from the initial six months along with the current groundwater basin conditions and local hydrology. This information will be used to help develop the Annual Assessment. A draft of the Annual Assessment will be circulated internally within the City for peer review and comment. Based on comments received, a redraft will be prepared and provided to City managers during the Spring of each year. The draft will subsequently be provided to the General Manager for final review. If necessary, a final draft of the Annual Assessment will be provided to the City Council for review and included in the agenda as part of a City meeting such that it can be approved and any recommended specific shortage response actions may be enacted. The final Annual Assessment will be provided to DWR no later than July 1 of each year.

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The Annual Assessments will be instrumental in providing guidance to the City for decisions regarding potential declarations of a water supply shortage and implementation of water reduction stages, instituting mandatory water restrictions, promoting water use efficiency and conservation programs, water rates and drought rate surcharges, and the necessity of pursuing alternative water supplies. This process will help ensure adequate water supplies resources are available to the City.

8.2.2 DATA METHODOLOGIES
The key data inputs and methodologies which will be evaluated by the City during the preparation of the Annual Assessment will include the following:
1) Evaluation Criteria: The locally applicable evaluation criteria used to prepare the Annual Assessment will be identified. The evaluation criteria will include, but is not limited to, an analysis of current local hydrology (including rainfall and groundwater levels), current water demands, a review of water system improvement plans which may impact infrastructure availability, and water quality regulations which may impact groundwater availability.
2) Water Supply: A description of each available water supply source will be provided.

The descriptions will include a quantification of each available water supply source and will be based on review of current production capacities, historical production, Urban Water Management Plans, and prior water supply studies (including Water Supply Assessments and/or Master Plans).
3) Unconstrained Water Demand: The potential unconstrained water demands during the current year and the upcoming (potential single dry) year will be reviewed. The review will include factors such as weather, existing and projected land uses and populations, actual customer consumption and water use factors, monthly Urban Resolution No. 2026-033

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Water Supplier Monthly Reports, existing water shortage levels (see Section 8.3), and existing water conservation ordinances (see Section 9.1). 4) Planned Water Use for Current Year Considering Dry Subsequent Year: The water supplies available to meet the demands during the current year and the upcoming (potential single dry) year will be considered and identified by each type of supply.

The evaluation will include factors such as estimated water demands, weather, groundwater basin operating safe yields, water quality results, existing available pumping capacities, imported water allocations, contractual obligations, regulatory issues, use of emergency interconnections, and the costs associated with producing each water supply source.
5) Infrastructure Considerations: The capabilities of the water distribution system infrastructure to meet the water demands during the current year and the upcoming (potential single dry) year will be considered. Available production capacities (e.g. groundwater well capacities) and distribution system water losses (see Section

4.3) will be reviewed. In addition, capital improvement and replacement projects, as well as potential projects which may increase water system and production capacities (see Section 6.2.10), will be considered.

SIX STANDARD WATER SHORTAGE LEVELS
CWC 10632.
(a)(3)(A) Six standard water shortage levels corresponding to progressive ranges of up to 10, 20, 30, 40, and 50 percent shortages and greater than 50 percent shortage. Urban water suppliers shall define these shortage levels based on the suppliers’ water supply conditions, including percentage reductions in water supply, changes in groundwater levels, changes in surface elevation or level of subsidence, or other changes in hydrological or other local conditions indicative of the water supply available for use.

Shortage levels shall also apply to catastrophic interruption of water supplies, including, Resolution No. 2026-033

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but not limited to, a regional power outage, an earthquake, and other potential emergency events.
(a)(3)(B) An urban water supplier with an existing water shortage contingency plan that uses different water shortage levels may comply with the requirement in subparagraph (A) by developing and including a cross-reference relating its existing categories to the six standard water shortage levels.

The City will manage water supplies prudently to minimize the adverse impacts of water shortages. The City’s plan for water usage during periods of shortage is designed to incorporate six standard water shortage levels corresponding to progressive ranges from up to 10, 20, 30, 40, and 50 percent shortages and greater than a 50 percent shortage.

The City previously adopted Ordinance No. 995 in 1991 (Appendix H), which enacted the Water Conservation Chapter of the City’s Municipal Code to protect the water supplies and to establish standards for reductions in the use of water. The Water Conservation Chapter code was further amended in 2006 through the adoption of City Ordinance No. 1115 (Appendix I) and in October 2009 through the adoption of Ordinance No. 1161 (Appendix J). The current Water Conservation Chapter from the City’s Municipal Code is provided in Appendix K. The City’s Ordinances previously established three (3) water shortage levels. In accordance with the California Water Code in which urban water suppliers are required to define six standard water shortage levels, the City has developed the crosswalk illustrated below (based on the City’s 2020 Plan) that translated the City’s previously established shortage levels to the mandated standard shortage levels. Table 8-1 also provides a cross-reference between the City’s previously established shortage levels and the mandated standard shortage levels.

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Corresponding Relationships Between Supplier's Established Shortage Levels and the WSCP Mandated Shortage Levels
Established
Level
Supply
Condition/Shortage
WSCP
Standard
Level
Shortage Level
1 Up to 30% 1 ≤ to 10%
2 30% to 50% 2 10 to 20%
3 50% or greater 3 20 to 30%
4 30 to 40 %
5 40 to 50 %
6 > 50 %

SHORTAGE RESPONSE ACTIONS
CWC 10632.
(a)(4) Shortage response actions that align with the defined shortage levels and include, at a minimum, all of the following:
(A) Locally appropriate supply augmentation actions.
(B) Locally appropriate demand reduction actions to adequately respond to shortages. (C) Locally appropriate operational changes.
(D) Additional, mandatory prohibitions against specific water use practices that are in addition to state-mandated prohibitions and appropriate to the local conditions. (E) For each action, an estimate of the extent to which the gap between supplies and demand will be reduced by implementation of the action.

Shortage response actions are dependent on the severity of a declared shortage level.

Response actions implement varying improvements and regulations of system Resolution No. 2026-033

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infrastructure and operations, water supply augmentation, demand reduction initiatives and other water use functions to conserve water supplies.

8.4.1 SUPPLY AUGMENTATION
The City does not plan to add a new source of water supply to address customer demands, but instead will consider increased supplies from existing sources. Table 8-2 reflects this approach and does not identify any new supplies. Instead, the City will focus on demand reduction measures in the event existing sources of supply are not sufficient to meet customer demands. As discussed in Chapter 6, the City’s sources of water supply include groundwater produced from the Central Basin, imported surface water purchased from MWD through Central Basin Municipal Water District, and recycled water supplies provided by LACSD. As noted in Section 8.2, the City is required to annually prepare and submit an Annual Assessment which will include a review of water supplies available to meet water demands for the current and upcoming years. If the City is currently in, or considers entering into, one of the standard water shortage levels identified in Section

8.3, the City will consider the water supply (augmentation) actions shown below.

For each water shortage level discussed in Section 8.3, the City will consider supplementing its existing water supplies through purchase of additional imported water supplies. Due to previous critically dry conditions, MWD developed the “Water Supply Allocation Plan” whereby available supplies are equitably allocated to its member agencies, including Central Basin Municipal Water District. The WSAP establishes ten different shortage levels and a corresponding drought allocation to each member agency.

Based on the shortage level established by MWD, the WSAP provides a reduced drought allocation to a member agency for its M&I retail demand. The ratio of MWD water supply drought allocation to local water supply will change based on the WSAP stage. Any Full Service water delivered in excess of a drought allocation is subject to a penalty rate in addition to the normal rate paid for the water.

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In addition to the WSAP, MWD describes supply augmentation actions in its Regional 2025 UWMP, which is incorporated by reference. MWD’s primary first response to any gap between core supplies (from the State Water Project and Colorado River) and demand is to make optimal use of its supply augmentation options, consisting of drawing from flexible supply programs and storage reserves. MWD has developed and actively manages a portfolio of water supply programs including water transfer, storage, and exchange agreements. MWD pursues voluntary water transfer and exchange programs to help mitigate supply/demand imbalances and provide additional dry-year supply sources. Based on MWD’s historical and on-going water supply and storage programs and management practices, the City can potentially continue relying on purchased imported water supplies from MWD through CBMWD for adequate supply augmentation in response to each of the standard water shortage levels identified in Section 8.3.

8.4.2 DEMAND REDUCTION
The City may establish water shortage response actions to reduce demand on water supplies. These demand reduction actions include irrigation and other outdoor use restrictions, rate structure changes, and other water use prohibitions. Depending on the percent reduction in the City water supply and corresponding water shortage level, regulations are made to conserve water and reduce the shortage gap in normal supply levels. Many demand reduction actions, identified as voluntary or mandatory conservation measures, are applicable to all levels of water shortages. The structure of water shortage levels are designed to strongly encourage customers with high per capita usage to achieve proportionally greater reduction than those with low usage. Violations of these demand reduction actions will be considered waste and an unreasonable use of water.

Table 8-3 describes each demand reduction action and its effect on reducing the shortage gap.

A full listing of the restrictions/prohibitions associated with each shortage level is provided below.

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General Prohibitions
The following water conservation requirements are effective at all times and are permanent. Violations of this section will be considered waste and an unreasonable use of water.

A. Limits on Watering Hours. Watering or irrigating of lawn, landscape or other vegetated area with potable water is prohibited between the hours of 10:00 a.m. and 5:00 p.m. on any day, except by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, or for very short periods of time for the express purpose of adjusting or repairing an irrigation system.

B. Limit on Watering Duration. Watering or irrigating of lawn, landscape or other vegetated area with potable water using a landscape irrigation system or a watering device that is not continuously attended is limited to no more than 15 minutes watering per day per station. This subsection does not apply to landscape irrigation systems that exclusively use very low-flow drip type irrigation systems when no emitter produces more than two gallons of water per hour and weather based controllers or stream rotor sprinklers that meet a 70% efficiency standard.

C. No Excessive Water Flow or Runoff. Watering or irrigating of any lawn, landscape or other vegetated area in a manner that causes or allows excessive water flow or runoff onto an adjoining sidewalk, driveway, street, alley, gutter or ditch is prohibited.

D. No Washing Down Hard or Paved Surfaces. Washing down hard or exterior paved surfaces, including, but not limited to, sidewalks, walkways, driveways, parking areas, patios or alleys, is prohibited except when necessary to alleviate safety or Resolution No. 2026-033

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sanitary hazards, and then only by use of a hand-held bucket or similar container, a handheld hose equipped with a positive self-closing water shut-off device, a lowvolume, high-pressure cleaning machine equipped to recycle any water used, or a low-volume high-pressure water broom.

E. Obligation to Fix Leaks, Breaks or Malfunctions. Excessive use, loss or escape of water through breaks, leaks or other malfunctions in the water user's plumbing or distribution system for any period of time after such escape of water should have reasonably been discovered is prohibited and shall be repaired as soon as reasonably practicable.

F. Re-Circulating Water Required for Water Fountains and Decorative Water Features. Operating a water fountain or other decorative water feature that does not use recirculated water is prohibited.

G. Limits on Washing Vehicles. Using water to wash or clean a vehicle, including, but not limited to, any automobile, truck, van, bus, motorcycle, boat or trailer, whether motorized or not is prohibited, except by use of a hand-held bucket or similar container or a hand-held hose equipped with a positive self-closing water shutoff nozzle or device. This subsection does not apply to any commercial vehicle washing facility.

H. Drinking Water Served Upon Request Only. Eating or drinking establishments, including, but not limited to, a restaurant, hotel, café, cafeteria, bar, or other public place where food or drinks are sold, served, or offered for sale, are prohibited from providing drinking water to any person unless expressly requested.

I. No Installation of Single Pass Cooling Systems. Installation of single pass cooling systems is prohibited in buildings requesting new water service.

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J. Limits on Commercial Car Wash and Laundry Systems. Installation of nonrecirculating water systems is prohibited in new commercial conveyor car wash and new commercial laundry systems.

Water Shortage Level 1
A Water Shortage Level 1 may be declared when the City Council determines it is likely that the City will suffer a shortage in City water supplies up to 10% of its normal water supplies.

In addition to the General Prohibitions identified above, the following water conservation requirements apply during a declared Water Shortage Level 1:

A. Limits on Watering Days. Watering or irrigating of lawn, landscape or other vegetated area with potable water is limited to three days per week on a schedule established and posted by the City. Watering or irrigating of lawn, landscape or other vegetated area with potable water is prohibited between the hours of 6:00 a.m. and 6:00 p.m. Pacific Standard Time. This provision does not apply to landscape irrigation zones that exclusively use very low flow drip type irrigation systems when no emitter produces more than two gallons of water per hour. This provision also does not apply to watering or irrigating by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, or for very short periods of time for the express purpose of adjusting or repairing an irrigation system.

B. Obligation to Fix Leaks, Breaks or Malfunctions. All leaks, breaks, or other malfunctions in the water user's plumbing or distribution system must be repaired within 72 hours of notification by the City unless other arrangements are made with the City.

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Water Shortage Level 2
A Water Shortage Level 2 may be declared when the City Council determines it is likely that the City will suffer a shortage in City water supplies up to 20% of its normal water supplies.

In addition to the General Prohibitions identified above, the following water conservation requirements apply during a declared Water Shortage Level 2:

A. Limits on Watering Days. Watering or irrigating of lawn, landscape or other vegetated area with potable water is limited to three days per week on a schedule established and posted by the City. Watering or irrigating of lawn, landscape or other vegetated area with potable water is prohibited between the hours of 6:00 a.m. and 6:00 p.m. Pacific Standard Time. This provision does not apply to landscape irrigation zones that exclusively use very low flow drip type irrigation systems when no emitter produces more than two gallons of water per hour. This provision also does not apply to watering or irrigating by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, or for very short periods of time for the express purpose of adjusting or repairing an irrigation system.

B. Obligation to Fix Leaks, Breaks or Malfunctions. All leaks, breaks, or other malfunctions in the water user's plumbing or distribution system must be repaired within 72 hours of notification by the City unless other arrangements are made with the City.

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Water Shortage Level 3
A Water Shortage Level 3 will be declared when the City Council determines it is likely that the City will suffer a shortage in City water supplies up to 30% of its normal water supplies.

In addition to the General Prohibitions identified above, the following water conservation requirements apply during a declared Water Shortage Level 3:

A. Limits on Watering Days. Watering or irrigating of lawn, landscape or other vegetated area with potable water is limited to three days per week on a schedule established and posted by the City. Watering or irrigating of lawn, landscape or other vegetated area with potable water is prohibited between the hours of 6:00 a.m. and 6:00 p.m. Pacific Standard Time. This provision does not apply to landscape irrigation zones that exclusively use very low flow drip type irrigation systems when no emitter produces more than two gallons of water per hour. This provision also does not apply to watering or irrigating by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, or for very short periods of time for the express purpose of adjusting or repairing an irrigation system.

B. Obligation to Fix Leaks, Breaks or Malfunctions. All leaks, breaks, or other malfunctions in the water user's plumbing or distribution system must be repaired within 72 hours of notification by the City unless other arrangements are made with the City
Water Shortage Level 4
Upon the declaration by the City of a Water Shortage Level 4, the City will implement the mandatory Level 4 conservation measures identified in this section. In addition to the Resolution No. 2026-033

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prohibited uses of water identified in the above sections, the following additional water conservation requirements apply during a declared Water Shortage Level 4:

A. Watering Days. Watering or irrigating of lawn, landscape or other vegetated area with potable water is limited to two days per week on a schedule established and posted by the City. During the months of November through March, watering or irrigating of lawn, landscape or other vegetated area with potable water is limited to no more than one day per week on a schedule established and posted by the City. This provision does not apply to landscape irrigation zones that exclusively use very low flow drip type irrigation systems when no emitter produces more than two gallons of water per hour. This provision also does not apply to watering or irrigating by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, or for very short periods of time for the express purpose of adjusting or repairing an irrigation system.

B. Obligation to Fix Leaks, Breaks or Malfunctions. All leaks, breaks, or other malfunctions in the water user's plumbing or distribution system must be repaired within 48 hours of notification by the City unless other arrangements are made with the City.

C. Limits on Filling Ornamental Lakes or Ponds. Filling or refilling ornamental lakes or ponds is prohibited, except to the extent needed to sustain aquatic life, provided that such animals are of significant value and have been actively managed within the water feature prior to declaration of a supply shortage level under this chapter.

D. Limits on Washing Vehicles. Using water to wash or clean a vehicle, including, but not limited to, any automobile, truck, van, bus, motorcycle, boat or trailer, whether motorized or not, is prohibited except by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off Resolution No. 2026-033

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nozzle or device, by high pressure/low volume wash systems, or at a commercial car washing facility that utilizes a recirculating water system to capture or reuse water.

E. Limits on Filling Residential Swimming Pools and Spas. Refilling of more than one foot and initial filling of residential swimming pools or outdoor spas with potable water is prohibited.

F. Commercial Nurseries Watering Limitations. Commercial nurseries shall be prohibited from watering lawn, landscaped or other turf areas more often than every other day and shall be prohibited from watering between the hours of 10:00 a.m. and 4:00 p.m.

G. Mandatory Water Restrictions. No customer shall make, cause, use or permit the use of City water for any purpose in excess of 85% of the amount used the same corresponding monthly billing period two years preceding the City Council declaring a Phase I Water Supply Shortage. In the case of newly established business, no restriction shall be required until such time that the business has been established for one year, at which time the preceding year's corresponding monthly billing shall be used to determine the businesses monthly water consumption.

Water Shortage Level 5
Upon the declaration by the City of a Water Shortage Level 5, the City will implement the mandatory Level 5 conservation measures identified in this section. In addition to the prohibited uses of water identified in the above sections, the following additional water conservation requirements apply during a declared Water Shortage Level 5:

A. Watering Days. Watering or irrigating of lawn, landscape or other vegetated area with potable water is limited to two days per week on a schedule established and Resolution No. 2026-033

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posted by the City. During the months of November through March, watering or irrigating of lawn, landscape or other vegetated area with potable water is limited to no more than one day per week on a schedule established and posted by the City. This provision does not apply to landscape irrigation zones that exclusively use very low flow drip type irrigation systems when no emitter produces more than two gallons of water per hour. This provision also does not apply to watering or irrigating by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, or for very short periods of time for the express purpose of adjusting or repairing an irrigation system.

B. Obligation to Fix Leaks, Breaks or Malfunctions. All leaks, breaks, or other malfunctions in the water user's plumbing or distribution system must be repaired within 48 hours of notification by the City unless other arrangements are made with the City.

C. Limits on Filling Ornamental Lakes or Ponds. Filling or refilling ornamental lakes or ponds is prohibited, except to the extent needed to sustain aquatic life, provided that such animals are of significant value and have been actively managed within the water feature prior to declaration of a supply shortage level under this chapter.

D. Limits on Washing Vehicles. Using water to wash or clean a vehicle, including, but not limited to, any automobile, truck, van, bus, motorcycle, boat or trailer, whether motorized or not, is prohibited except by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, by high pressure/low volume wash systems, or at a commercial car washing facility that utilizes a recirculating water system to capture or reuse water.

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E. Limits on Filling Residential Swimming Pools and Spas. Refilling of more than one foot and initial filling of residential swimming pools or outdoor spas with potable water is prohibited.

F. Commercial Nurseries Watering Limitations. Commercial nurseries shall be prohibited from watering lawn, landscaped or other turf areas more often than every other day and shall be prohibited from watering between the hours of 10:00 a.m. and 4:00 p.m.

G. Mandatory Water Restrictions. No customer shall make, cause, use or permit the use of City water for any purpose in excess of 85% of the amount used the same corresponding monthly billing period two years preceding the City Council declaring a Phase I Water Supply Shortage. In the case of newly established business, no restriction shall be required until such time that the business has been established for one year, at which time the preceding year's corresponding monthly billing shall be used to determine the businesses monthly water consumption.

Water Shortage Level 6
A Water Shortage Level 6 is also referred to as an "Emergency" condition. A Water Shortage Level 6 condition exists when the City of Vernon declares a water shortage emergency or when the City Council determines that the City will suffer a shortage of more than 50% of its normal water supplies. Upon the declaration of a Water Shortage Level 6 condition, the City shall notify its residents and businesses that a significant reduction in consumer demand is necessary to maintain sufficient water supplies for public health and safety and shall implement the mandatory Water Shortage Level 6 conservation measures identified in this section.

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In addition to the prohibited uses of water identified in the Sections above, the following water conservation requirements apply during a declared Water Shortage Level 6 Emergency:

A. No Watering or Irrigating. Watering or irrigating of lawn, landscape or other vegetated area with potable water is prohibited. This restriction does not apply to the following categories of use, unless the City has determined that recycled water is available and may be applied to the use:

1. Maintenance of vegetation, including trees and shrubs, that are watered using a hand-held bucket or similar container, handheld hose equipped with a positive self-closing water shut-off nozzle or device;

2. Maintenance of existing landscape necessary for fire protection;

3. Maintenance of existing landscape for soil erosion control;

4. Maintenance of plant materials identified to be rare or essential to the wellbeing of protected species;

5. Maintenance of landscape within active public playing fields and school grounds, provided that such irrigation does not exceed two days per week according to the schedule established in Section 13.20.060(A) and the time restrictions as established in Section 13.20.050(A) of the City’s Municipal Code;

6. Actively irrigated environmental mitigation projects.

B. Obligation to Fix Leaks, Breaks or Malfunctions. All leaks, breaks, or other malfunctions in the water user's plumbing or distribution system must be repaired within 24 hours of notification by the City unless other arrangements are made with the City.

C. Commercial Nurseries Watering Limitations. Commercial nurseries shall be prohibited from watering lawn, landscaped or other turf areas more often than Resolution No. 2026-033

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every third day and shall be prohibited from watering between the hours of 6:00 a.m. and 6:00 p.m.

D. Mandatory Water Restrictions. No customer shall make, cause, use or permit the use of City water for any purpose in excess of 75% of the amount used the same corresponding monthly billing period two years preceding the City Council declaring a Phase I Water Supply Shortage. In the case of a newly established business, no restriction shall be required until such time that the business has been established for one year, at which time the preceding year's corresponding monthly billing period shall be used to determine the businesses monthly water consumption.

E. Fire Hydrant Use. The use of water from a fire hydrant shall be limited to fire fighting and related activities. Other uses of City water for municipal purposes shall be limited to activities necessary to maintain the public health, safety and welfare.

F. Customer Water Conservation Report. The City may, by written request, require all commercial and industrial customers using 100 acre feet or more per year of potable water to submit a water conservation plan and quarterly progress reports on such plan. The conservation plan shall include recommendations for increased water savings, including increased water recycling based on feasibility. The quarterly report shall include progress to date on implementation of such recommendations.

8.4.3 OPERATIONAL CHANGES
During a water supply shortage situation, the City will manage its water supply resources to provide sufficient water supplies capable of meeting the demands of its customers.

Section 8.4.2 describes the City’s standard water shortage levels and associated demand reduction measures. Section 8.4.1 describes the City’s water supply sources and water Resolution No. 2026-033

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supply augmentation actions available. The supply augmentation actions and demand reduction measures, when implemented, may potentially result in short-term operational changes which are necessary to allow the City to utilize all available water supply sources in response to water shortage situations.

As noted in Section 8.2, the City is required to annually prepare and submit an Annual Assessment which will include a review of the water supplies available to meet water demands for the current and upcoming years. Preparation of the Annual Assessment will assist the City in determining any potential operational changes. In addition, the City’s standard water shortage levels and the associated demand reduction measures, in conjunction with the City’s existing Demand Management Measures (discussed in Chapter 9), will be essential to the City in reducing water demands during any water shortage period. The operational changes the City will consider in addressing noncatastrophic water shortages on a short-term basis include the following:
 Improved monitoring, analysis, and tracking of customer water usage to enforce demand reduction measures
 Optimized production from existing available water supply sources  Potential use of emergency supply sources, including emergency interconnections  Potential blending of water supply resources
 Improved monitoring, maintenance, and repairs to reduce water distribution system losses

8.4.4 ADDITIONAL MANDATORY RESTRICTIONS
The mandatory restrictions which are implemented by the City to reduce customer demands are discussed in Section 8.4.2. There are no additional mandatory restrictions planned at this time.

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8.4.5 EMERGENCY RESPONSE PLAN
Catastrophic water shortages are incorporated in the City’s standard water shortage levels (identified in Section 8.3) and the associated demand reduction measures (described in Section 8.4.2). In addition to the water supply augmentation actions (Section 8.4.1) and potential operational changes (Section 8.4.3) which the City may consider in order to continue providing sufficient water supplies, the City will review and implement any necessary steps included in its “Emergency Response Plan”.

As part of the “America’s Water Infrastructure Act of 2018”, community water systems serving a population greater than 3,300 people, including the City, are required to review and update their “Risk and Resilience Assessment” (RRA) and the associated “Emergency Response Plan” (ERP) every five (5) years. However, due to security concerns regarding the submitting of these reports, water systems are required to submit certifications to the United States Environment Protection Agency (USEPA), from March 31, 2025 and December 31, 2026, confirming the current RRA and ERP have been reviewed and updated.

The City’s RRA, previously prepared in 2021 and updated in 2026, evaluates the vulnerabilities, threats, and consequences from potential hazards to the City’s water system. The City prepared its RRA (which is incorporated by reference) by evaluating the following items:
 Natural hazards and malevolent acts (i.e., all hazards);  Resilience of water facility infrastructure (including pipes, physical barriers, water sources and collection, treatment, storage and distribution facilities, and electronic, computer and other automated systems);
 Monitoring practices;
 Financial systems (e.g., billing systems);
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 Chemical storage and handling; and
 Operation and maintenance.

The City’s RRA evaluated a series of potential malevolent acts, natural hazards, and other threats in order to estimate the potential “monetized risks” (i.e. associated economic consequences to both the water system and surrounding region, and the likelihood of occurrence) associated with the City’s water facility assets. The cost-effectiveness of implementing potential countermeasures to reduce risks was also reviewed.

The City’s ERP, previously prepared in 2021 and updated in 2026, provides the management, procedures, and designated actions the City and its employees will implement during emergency situations (including catastrophic water shortages) resulting from natural disasters, system failures and other unforeseen circumstances. The City’s ERP (which is incorporated by reference) provides the guidelines for evaluating an emergency situation, procedures for activating an emergency response, and details of the different response phases in order to ensure that customers receive a reliable and adequate supply of potable water. The scope of the ERP includes emergencies which directly affect the water system and the ability to maintain safe operations (such as a chlorine release, and earthquake or a threat of contamination). The ERP also incorporates the results of City’s RRA and includes the following:
 Strategies and resources to improve resilience, including physical and cybersecurity
 Plans and procedures for responding to a natural hazard or malevolent act  Actions and equipment to lessen the impact of a natural hazard or malevolent act  Strategies to detect natural hazards or malevolent act The City will review the ERP for procedures regarding the utilization of alternative water supply sources in response to water supply shortages, including during the standard Resolution No. 2026-033

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water shortage levels. The City will also review applicable procedures described in the ERP regarding any necessary temporary shutdown of water supply facilities, including appropriate regulatory and public notifications.

8.4.6 SEISMIC RISK ASSESSMENT AND MITIGATION PLAN
CWC 10632.5.
(a) In addition to the requirements of paragraph (3) of subdivision (a) of Section 10632, beginning January 1, 2020, the plan shall include a seismic risk assessment and mitigation plan to assess the vulnerability of each of the various facilities of a water system and mitigate those vulnerabilities.
(b) An urban water supplier shall update the seismic risk assessment and mitigation plan when updating its urban water management plan as required by Section 10621. (c) An urban water supplier may comply with this section by submitting, pursuant to Section 10644, a copy of the most recent adopted local hazard mitigation plan or multihazard mitigation plan under the federal Disaster Mitigation Act of 2000 (Public Law 106-390) if the local hazard mitigation plan or multihazard mitigation plan addresses seismic risk.

The City prepared a local “Hazard Mitigation Plan” in 2023. The Hazard Mitigation Plan identifies effective ways to assess the significant natural hazards (including earthquakes) that may affect the City and its residents. The Hazard Mitigation Plan provides resources, information, and strategies to reduce the City’s vulnerability to these hazards, while providing guidance for the coordination of mitigation activities throughout the City. The Hazard Mitigation Plan includes mitigation projects necessary to reduce seismic risk to the City’s water distribution system facilities (including its distribution system pipelines, groundwater wells, booster pumps, and storage reservoirs) and potential disruptions in providing water service. The City’s Hazard Mitigation Plan is provided in Appendix L.

The County of Los Angeles prepared a “All-Hazards Mitigation Plan” in 2025 which identified methods to assess significant natural hazards (including earthquakes) affecting areas throughout Los Angeles County, and the mitigation strategies necessary to reduce Resolution No. 2026-033

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risks, including seismic risk. The County’s All-Hazards Mitigation Plan is provided in Appendix M.

The California Geological Survey has published the locations of numerous faults which have been mapped in the Southern California region. Although the San Andreas fault is the most recognized and is capable of producing an earthquake with a magnitude greater than 8 on the Richter scale, some of the lesser-known faults have the potential to cause significant damage. The locations of these earthquake faults in the vicinity of the City’s water service area are provided in the figure below. The faults that are located in close proximity to and could potentially cause significant shaking in the City’s water service area include the East Montebello fault and the Newport-Inglewood fault. .

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Location of Earthquake Faults
Source: https://maps.conservation.ca.gov/cgs/fam/App/
The California Geological Survey provides earthquake hazard maps5 based on the Modified Mercalli Intensity (MMI) scale, which measures earthquake shaking intensity and its impacts on people, objects, and buildings. The area within the City’s service area has an MMI of approximately 9.5 calculated based on the level of shaking that has a 2 percent chance of being exceeded in 50 years (or the level of shaking with an approximate 2,500- year average repeat time). An MMI at this intensity (violent shaking) can result in buildings shifted off foundations, cracked, or tilted, the ground cracked, and underground pipes broken. As discussed in Section 8.4.5, the City has prepared an Emergency Response Plan which provides the management, procedures, and designated actions the City and its employees will implement during emergency situations resulting from natural 5 https://conservation.ca.gov/cgs/sh/earthquake-shaking-potential City’s Service Area
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disasters, including during earthquakes, to ensure that customers receive a reliable and adequate supply of potable water. The City’s ERP is incorporated by reference.

8.4.7 SHORTAGE RESPONSE ACTION EFFECTIVENESS
The effectiveness of the shortage response actions for each of the standard water shortage levels identified in Section 8.3 is evident in the City’s historical ability to meet its customer’s water demands in response to a water supply shortage. In addition, the City imposes water consumption regulations and restrictions, and supports local agencies in efforts to enforce regulations and prohibitions on water use. The effectiveness of each of the City’s shortage response actions, in order to reduce any potential gaps between supply and demand, has been quantified in the expected demand reduction provided in Table 8-2 and Table 8-3.

Section 6.1 provides a tabulation of the City’s historical annual water demands for each water supply source. During the past 15 years, the City experienced a five consecutive year drought within its service area from CY 2011 to CY 2015. Throughout this extended dry year period, the City’s annual water production ranged from 8,217 AF to 8,765 AF, with an average of approximately 8,549 AF. In addition, historical records indicate the City previously produced a maximum of up to 12,232 AF during CY 2000. The City has been able to provide sufficient water supplies to its customers, including during long-term droughts and years with historically high water demands. In addition, the City has been able to provide water service to meet maximum day water demands for these years, including during the summer months.

The City’s water demands during the most recent five years (from CY 2021 to CY 2025) averaged approximately 5,890 AFY. Due to conservation efforts and demand management measures (discussed in Chapter 9), the City’s recent water demands have been less than its historical water demands, including during long-term droughts. The City’s projected water demands (during normal, single dry, and multiple dry years) are Resolution No. 2026-033

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provided in Section 7.2.3 and are anticipated to incorporate similar reductions in water use rates as a result of the shortage response actions, ongoing conservation efforts, and demand management measures. Because the City’s projected water demands are similar to or less than its historical water demands, it is anticipated the City will be able to continue providing sufficient water supplies to its customers to meet projected water demands, including during long-term droughts. In addition, based on historical and ongoing management practices, the City will be able to continue relying on its water supply sources from the Central Basin for adequate supply augmentation in response to each of the standard water shortage levels identified in Section 8.3.

Based on the City’s ability in meeting water demands during past water supply shortages, adopted water shortage levels, adjusted operating safe yields, and long-term droughts, it is anticipated that the City will be able to continue providing sufficient water supplies to its customers during any of its standard water shortage levels. Although adequate supplies are anticipated, the cost of those water supplies may become incrementally more expensive. The City will enact varying levels of its water shortage contingency plan to encourage retail customers to reduce water consumption and at the same time reduce the need to use the more expensive water supplies. Notwithstanding, the effectiveness of each of the City’s shortage response actions, in order to reduce any potential gaps between supply and demand, has been quantified in the expected demand reduction provided in Table 8-3. The effectiveness of the City’s shortage response actions is based on the City’s water demands prior to 2015 (unconstrained demands). The City reduced its water demands in 2015 in response to the Governor’s April 1, 2015 Executive Order B-29-15 which mandated statewide reduction in water use of 25 percent. The City’s actual water demand reduction during this period was used to estimate the extent of water use reductions for the City’s Water Shortage Levels. The City’s Water Shortage Levels 1, 2, 3, 4, 5, and 6 are expected to reduce water demands by up to 10%, 20%, 30%, 40%, 50%, and greater than 50%, respectively.

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Emergency regulations previously adopted by the SWRCB pursuant to Executive Order N-7-22 (issued on March 28, 2022 by California Governor Gavin Newsom) required urban water suppliers to implement Level 2 of their Water Shortage Contingency Plans meant to address up to a 20% shortage of water supplies. The regulations also required urban water suppliers to establish a ban on irrigating non-functional turf at commercial, industrial, and institutional properties (including grass in front of or next to large industrial or commercial buildings). The ban did not include watering turf that is used for recreation or other community purposes, water used at residences or water to maintain trees.

Pursuant to Executive Order N-5-23 issued on March 24, 2023 by California Governor Gavin Newsom, the requirement for urban water suppliers to implement Level 2 of their Water Shortage Contingency Plans was removed. As of June 5, 2024, SWRCB statewide water conservation emergency regulations have expired. In October 2023, however, the California State Legislature passed Assembly Bill 1572, which phases in a ban on decorative grass watering in commercial, industrial, and institutional areas permanently beginning January 2027.

COMMUNICATION PROTOCOLS
CWC 10632.
(a)(5) Communication protocols and procedures to inform customers, the public, interested parties, and local, regional, and state governments, regarding, at a minimum, all of the following:
(A) Any current or predicted shortages as determined by the annual water supply and demand assessment described pursuant to Section 10632.1. (B) Any shortage response actions triggered or anticipated to be triggered by the annual water supply and demand assessment described pursuant to Section 10632.1. (C) Any other relevant communications.

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As discussed in Section 8.2, the City prepares an Annual Water Supply and Demand Assessment to review potential water demands and supply conditions for the upcoming fiscal year. If a water shortage is determined, the General Manager of Public Utilities shall file a report and documentation supporting the need for such a determination with the City Council. If the City Council makes a determination, its resolution shall set forth the findings which support such determination. The City will publish a notice regarding the shortage in a local newspaper of and a copy of the notice shall be sent with each water bill or by any other mailing to the address to which the City customarily mails the billing statement for fees for water service. Any prohibitions or limitations on the use of water associated with a water shortage level shall become effective 30 days after such mailing or on such a date as specified in the notice.

COMPLIANCE AND ENFORCEMENT
CWC 10632.
(a)(6) For an urban retail water supplier, customer compliance, enforcement, appeal, and exemption procedures for triggered shortage response actions as determined pursuant to Section 10632.2.

Violation by any customer of the water use prohibitions under any water shortage level shall be penalized as follows:
 First Violation. A written notice of a first violation shall be issued to the customer.  Second Violation. For a second violation the City shall impose a surcharge in an amount equal to 10% of the customer's water bill.

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 Third and Subsequent Violations. For a third and each subsequent violation, the City may impose an additional surcharge of 10% for each such violation and the City may install a flow restricting device on the service of the customer at the premises at which the violation occurred for a period determined by the General Manager of Public Utilities. The City shall charge the customer the reasonable costs incurred for installing and for removing the flow-restricting device and for restoration of normal service. The charge shall be paid before service can be restored.

The shall give notice of violation to the customer committing the violation in writing by certified mail to the address as appears on the regular water bill. The notice shall contain a description of the facts of the violation, a statement of the possible penalties for each violation and a statement informing the customer of his or her right to a hearing on the merits of the violation.

LEGAL AUTHORITIES
CWC 10632.
(a)(7)(A) A description of the legal authorities that empower the urban water supplier to implement and enforce its shortage response actions specified in paragraph (4) that may include, but are not limited to, statutory authorities, ordinances, resolutions, and contract provisions.
(B) A statement that an urban water supplier shall declare a water shortage emergency in accordance with Chapter 3 (commencing with Section 350) of Division 1. [see below] (C) A statement that an urban water supplier shall coordinate with any city or 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.

CWC Division 1, Section 350
The governing body of a distributor of a public water supply, whether publicly or privately owned and including a mutual water company, shall declare a water shortage emergency condition to prevail within the area served by such distributor whenever it finds and determines that the Resolution No. 2026-033

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ordinary demands and requirements of water consumers cannot be satisfied without depleting the water supply of the distributor to the extent that there would be insufficient water for human consumption, sanitation, and fire protection.

In the event that the demand of water consumers cannot be satisfied without depleting a substantial amount of water supply needed for human consumption, sanitation, and fire protection, the City shall declare a water shortage emergency (in accordance with Water Code Chapter 3 commencing with Section 350 of Division 1 regarding water shortage emergencies). the City shall coordinate with any city or county within its service area for possible declaration of a local emergency, as defined in Section 8588 of the Government Code.

The City previously adopted Ordinance No. 995 (Appendix H), Ordinance No. 1115 (Appendix I), and Ordinance No. 1161 (Appendix J) which updated the Water Conservation Chapter from the City’s Municipal Code (Appendix K). The City’s Municipal Code provides a mechanism for the City to implement water shortage levels based on the severity of a water supply shortage.

FINANCIAL CONSEQUENCES OF WSCP
CWC 10632.
(a)(8) A description of the financial consequences of, and responses for, drought conditions, including, but not limited to, all of the following:
(A) A description of potential revenue reductions and expense increases associated with activated shortage response actions described in paragraph (4). (B) A description of mitigation actions needed to address revenue reductions and expense increases associated with activated shortage response actions described in paragraph (4). (C) A description of the cost of compliance with Chapter 3.3 (commencing with Section 365) of Division 1. [retail urban suppliers only]
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During periods of water supply shortages, state-mandated water use restrictions, or emergency conditions, the City may require its customers to reduce demands below levels projected under the current water rate structure. Under any of these circumstances, the City may experience a decrease in revenues that may result in insufficient funds to meet projected expenses.

As an industrial City, few of the actions related to discretionary water use reduction will impact revenue or expenditures, given the small associated demands. It should be noted that revenue associated with rates for water service are not a significant portion of the City’s operating budget; therefore, even the impact of water use prohibitions under water shortage levels will be minimal. Furthermore, the City may change its rate structure as necessary to account for a revenue shortfall.

MONITORING AND REPORTING
CWC 10632.
(a)(9) For an urban retail water supplier, monitoring and reporting requirements and procedures that ensure appropriate data is collected, tracked, and analyzed for purposes of monitoring customer compliance and to meet state reporting requirements.

The City is required to submit an Annual Assessment in accordance with DWR’s guidance and requirements. The Annual Assessment will include a review of the City’s unconstrained water demands (i.e. water demands prior to any projected response actions the City may trigger under this WSCP) for the current year and the upcoming (potential single dry) year. The City will also include information regarding anticipated shortages, triggered shortage response actions, compliance and enforcement actions, Resolution No. 2026-033

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and communication actions consistent with the City’s WSCP. See Section 8.2 for further discussion of the Annual Assessment.

The City’s water production and consumption data are recorded by meters and reviewed regularly by City staff. Data will be monitored and compared periodically and used to measure the effectiveness of any water shortage contingency stage that may be implemented.

WSCP REFINEMENT PROCEDURES
CWC 10632.
(a)(10) Reevaluation and improvement procedures for systematically monitoring and evaluating the functionality of the water shortage contingency plan in order to ensure shortage risk tolerance is adequate and appropriate water shortage mitigation strategies are implemented as needed.

The City’s Water Shortage Contingency Plan has been prepared as an adaptive management plan. As discussed in Section 8.9, the City will monitor and report on the implementation of the Water Shortage Contingency Plan. The City will review the implementation results for any current or potential shortage gaps between water supplies and demands. The City will evaluate the need for revising the Water Shortage Contingency Plan in order to resolve any shortage gaps, as necessary. The City will consider the following potential revisions in the event of a potential shortage gap:
 Implementation of additional public outreach, education, and communication programs (in addition to the programs discussed in Chapter 9).  Implementation of more stringent water use restrictions under the standard water shortage levels (discussed in Section 8.4)
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 Implementation of stricter enforcement actions and penalties (discussed in Section

8.6)
 Improvements to the water supply augmentation responses (discussed in Section

8.4.1), as well as any associated operational changes (discussed in Section 8.4.3) which may be required
 Incorporation of additional actions recommended by City staff or other interested parties
The City will use the monitoring and reporting data to evaluate the ability for these potential revisions to resolve any shortage gaps which may occur within the standard water shortage levels.

This Water Shortage Contingency Plan is adopted as part of the City’s 2025 Urban Water Management Plan adoption process discussed in Section 10.3. It is anticipated the City will review, revise, and adopt an updated Water Shortage Contingency Plan as part of preparing its 2030 Urban Water Management Plan as necessary. However, the City will continue to review the monitoring and reporting data, and if needed, update the Water Shortage Contingency Plan more frequently. Any updates to the City’s Water Shortage Contingency Plan will include a public hearing and adoption process by the City Council (see Section 8.12).

SPECIAL WATER FEATURE DISTINCTION
CWC 10632.
(b) For purposes of developing the water shortage contingency plan pursuant to subdivision (a), an urban water supplier shall 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.

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The City’s Water Shortage Contingency Plan defines “decorative water features” as water features which are artificially supplied with water, including ponds, lakes, waterfalls, and fountains, but excluding pools and spas. In general, there are additional health and safety considerations in the water supplied to pools and spas compared to decorative water features. As a result, the City’s Water Shortage Contingency Plan has reviewed the response actions, enforcement actions, and monitoring and reporting programs separately for decorative water features and for pools and spas, as applicable.

PLAN ADOPTION, SUBMITTAL, AVAILABILITY, AND AMENDMENT

PROCEDURES
CWC 10632.
(c) The urban water supplier shall make available the water shortage contingency plan prepared pursuant to this article to its customers and any city or county within which it provides water supplies no later than 30 days after adoption of the water shortage contingency plan.

The City’s Water Shortage Contingency Plan is adopted as part of the City’s 2025 Urban Water Management Plan adoption process discussed in Chapter 10. The process for adopting the City’s Water Shortage Contingency Plan includes the following:
 The City will conduct a public hearing and make the Water Shortage Contingency Plan available for public inspection.
 The City will provide notification of the time and place of the public hearing to any city or county in which water is provided.
 The City will publish notice of public hearing in a newspaper once a week, for two successive weeks (with at least five days between publication dates).  The City Council will adopt the 2025 Urban Water Management Plan and the Water Shortage Contingency Plan
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 As part of submitting the 2025 Urban Water Management Plan to DWR, the City will also submit the Water Shortage Contingency Plan (electronically through DWR’s online submittal tool) within 30 days of adoption and by July 1, 2026. The City will submit a copy of the Water Shortage Contingency Plan to the California State Library and to any city or county in which water is provided within 30 days of adoption. In addition, the City will make the Water Shortage Contingency Plan available for public review within 30 days of adoption.

If there are any subsequent amendments required, the process for adopting an amended Water Shortage Contingency Plan includes the following:
 The City will conduct a public hearing and make the amended Water Shortage Contingency Plan available for public inspection.
 The City Council will adopt the amended Water Shortage Contingency Plan  The City will submit the amended Water Shortage Contingency Plan to DWR (electronically through DWR’s online submittal tool) within 30 days of adoption Additional information regarding the adoption, submittal, and availability of the City’s Water Shortage Contingency Plan (and 2025 Urban Water Management Plan) is provided in Chapter 10.

RESOURCES AND REFERENCES
DWR’s Final 2025 UWMP Guidebook provides a listing of resources and references which can be helpful during the preparation of a Water Shortage Contingency Plan.

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SUBMITTAL TABLES
The applicable standardized Submittal Tables referenced within Chapter 8 are provided below.

8.14.1 TABLE 8-1: CROSS REFERENCE FOR STANDARD VS. SUPPLIER

SHORTAGE LEVELS
Table 8-1 Cross-Reference for Standard vs. Supplier Shortage Levels Resolution No. 2026-033

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8.14.2 TABLE 8-2: SUPPLY AUGMENTATION AND OTHER ACTIONS Table 8-2 Supply Augmentation and Other Actions

Yes
Volume or
Percentage
Drop down
Shortage Gap
Reduction Value
(May be a range)
(AF)
1 Transfers Volume 0 Not applicable (see Notes)
2 Transfers Volume 0 Not applicable (see Notes)
3 Transfers Volume 0 Not applicable (see Notes)
4 Transfers Volume 0 Not applicable (see Notes)
5 Transfers Volume 0 Not applicable (see Notes)
6 Transfers Volume 0 Not applicable (see Notes)
Submittal Table 8-2 Retail: Supply Augmentation and Other Actions Water Code Section 10632(a)(4)(A),(C) and (E)
Add additional rows as needed
NOTES: The City will consider increased production from the Central Basin using existing facilities to address increased demands.

As noted on Table 8-3, the City plans to implement demand reduction measures in the event water supplies from existing sources are not sufficient to meet anticipated demands.

Is the Supplier completing this table using the standard six levels? (yes/no) How much is this going to reduce the
shortage gap?
DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3.

Shortage
Level
Supply Augmentation Methods and
Other Actions by Water Supplier
Drop down list
Thes e are the only categories that will
be accepted by the WUEdata online
s ubmittal tool
Additional Explanation or Reference
(OPTIONAL)
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8.14.3 TABLE 8-3: DEMAND-REDUCTION ACTIONS
Table 8-3 Demand Reduction Actions

Yes
Volume or
Percentage
Drop down
Shortage Gap
Reduction Value
(May be a range)
(AF)
1 Landscape - Limit landscape
irrigation to specific times Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Watering or irrigating of lawn,
landscape or other vegetated area with potable
water is prohibited between the hours of 10:00
a.m. and 5:00 p.m. on any day, except by use of a
hand-held bucket or similar container, a handheld hose equipped with a positive self-closing water hut-off nozzle or device, or for very short
periods of time for the express purpose of
adjusting or repairing an irrigation system.

Yes
1 Landscape - Limit landscape
irrigation to specific times Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Watering or irrigating of lawn,
landscape or other vegetated area with potable
water using a landscape irrigation system or a
watering device that is not continuously
attended is limited to no more than fifteen (15)
minutes watering per day per station. This
subsection does not apply to landscape
irrigation systems that exclusively use very lowflow driptype irrigation systems when no emitter produces more than two (2) gallons of
water per hour and weather based controllers or
stream rotor sprinklers that meet a seventy
percent (70%) efficiency standard.

Yes
1 Landscape - Restrict or prohibit
runoff from landscape irrigation Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Watering or irrigating of any lawn,
landscape or other vegetated area in a manner
that causes or allows excessive water flow or
runoff onto an adjoining sidewalk, driveway,
street, alley, gutter or ditch is prohibited.

Yes
1 Other - Prohibit use of potable
water for washing hard surfaces Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Washing down hard or exterior
paved surfaces, including but not limited to
sidewalks, walkways, driveways, parking areas,
patios or alleys, is prohibited except when
necessary to alleviate safety or sanitary hazards,
and then only by use of a hand-held bucket or
similar container, a hand-held hose equipped
with a positive self-closing water shut-off
device, a low- volume, high-pressure cleaning
machine equipped to recycle any water used, or
a low-volume high-pressure water broom.

Yes
Is the Supplier completing this table using the standard six levels? (yes/no) Submittal Table 8-3 Retail: Demand Reduction Actions
Water Code Section 10632(a)(4)(B),(D), and (E)
Add additional rows as needed
How much is this going to reduce the
shortage gap?
Shortage
Level
Demand Reduction Actions
Drop down list
These are the only categories that will
be accepted by the WUEdata online
submittal tool. Select those that apply.

Additional Explanation or Reference
(OPTIONAL)
Penalty, Charge,
or Other
Enforcement?
For Retail Suppliers
Only
Drop Down List
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1 Other - Customers must repair
leaks, breaks, and malfunctions in a
timely manner
Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Repair as soon as reasonably
practicable. Yes
1 Water Features - Restrict water use
for decorative water features, such
as fountains
Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Operating a water fountain or
other decorative water feature that does not
use re-circulated water is prohibited.

Yes
1 Other - Prohibit vehicle washing
except at facilities using recycled or
recirculating water
Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Using water to wash or clean a
vehicle, including but not limited to any
automobile, truck, van, bus, motorcycle, boat or
trailer, whether motorized or not is prohibited,
except by use of a hand-held bucket or similar
container or a hand-held hose equipped with a
positive self-closing water shut-off nozzle or
device. This subsection does not apply to any
commercial vehicle washing facility.

Yes
1 CII - Restaurants may only serve
water upon request
Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Eating or drinking establishments,
including but not limited to a restaurant, hotel,
cafe, cafeteria, bar, or other public place where
food or drinks are sold, served, or offered for
sale, are prohibited from providing drinking
water to any person unless expressly requested.

Yes
1 CII - Other CII restriction or
prohibition Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Installation of single pass cooling
systems is prohibited in buildings requesting
new water service.

Yes
1 CII - Other CII restriction or
prohibition Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
(Permanent) Installation of non-re-circulating
water systems is prohibited in new commercial
conveyor car wash and new commercial laundry
systems.

Yes
1 Landscape - Limit landscape
irrigation to specific days Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
Watering or irrigating of lawn, landscape or
other vegetated area with potable water is
limited to three (3) days per week on a schedule
established and posted by the City.

Yes
1 Landscape - Limit landscape
irrigation to specific times Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
Watering or irrigating of lawn, landscape or
other vegetated area with potable water is
prohibited between the hours of 6:00 a.m. and
6:00 p.m. Pacific.Standard Time. This provision
does not apply to landscape irrigation zones that
exclusively use very low flow drip type irrigation
systems when no emitter produces more than
two (2) gallons of water per hour. This provision
also does not apply to watering or irrigating by
use of a hand-held bucket or similar container, a
hand-held hose equipped with a positive selfclosing water shut-off nozzle or device, or for very short periods of time for the express
purpose of adjusting or repairing an irrigation
system.

Yes
1 Other - Customers must repair
leaks, breaks, and malfunctions in a
timely manner
Volume
Collective reduction
from all Shortage
Level 1 actions is up
to 186 AFY
All leaks, breaks, or other malfunctions in the
water user's plumbing or distribution system
must be repaired within seventy-two (72) hours
of notification by the city unless other
arrangements are made with the city.

Yes
2 Other Volume
Collective reduction
from Shortage Level
1 plus all Shortage
Level 2 actions is up
to 372 AFY
All actions under Shortage Level 1 Yes
Resolution No. 2026-033

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3 Other Volume
Collective reduction
from Shortage Level
2 plus all Shortage
Level 3 actions is up
to 558 AFY
All actions under Shortage Level 2 Yes
4 Landscape - Limit landscape
irrigation to specific days Volume
Collective reduction
from Shortage Level
4 actions is up to 744
AFY
Watering or irrigating of lawn, landscape or
other vegetated area with potable water is
limited to two (2) days per week on a schedule
established and posted by the city. During the
months of November through March, watering
or irrigating of lawn, landscape or other
vegetated area with potable water is limited to
no more than one (1) day per week on a
schedule established and posted by the city.

This provision does not apply to landscape
irrigation zones that exclusively use very low
flow drip type irrigation systems when no
emitter produces more than two (2) gallons of
water per hour. This provision also does not
apply to watering or irrigating by use of a handheld bucket or similar container, a hand-held hose equipped with a positive self-closing water
shut-off nozzle or device, or for very short
periods of time for the express purpose of
adjusting or repairing an irrigation system.

Yes
4 Other - Customers must repair
leaks, breaks, and malfunctions in a
timely manner
Volume
Collective reduction
from Shortage Level
4 actions is up to 744
AFY
All leaks, breaks, or other malfunctions in the
water user's plumbing or distribution system
must be repaired within forty-eight (48) hours of
notification by the city unless other
arrangements are made with the city.

Yes
4 Water Features - Restrict water use
for decorative water features, such
as fountains
Volume
Collective reduction
from Shortage Level
4 actions is up to 744
AFY
Filling or refilling ornamental lakes or ponds is
prohibited, except to the extent needed to
sustain aquatic life, provided that such animals
are of significant value and have been actively
managed within the water feature prior to
declaration of a supply shortage level under this
article.

Yes
4 Other - Prohibit vehicle washing
except at facilities using recycled or
recirculating water
Volume
Collective reduction
from Shortage Level
4 actions is up to 744
AFY
Using water to wash or clean a vehicle, including
but not limited to, any automobile, truck, van,
bus, motorcycle, boat or trailer, whether
motorized or not, is prohibited except by use of
a hand-held bucket or similar container, a handheld hose equipped with a positive self-closing water shut-of nozzle or device, by high
pressure/low volume wash systems, or at a
commercial car washing facility that utilizes a recirculating water system to capture or reuse water.

Yes
4 Other water feature or swimming
pool restriction Volume
Collective reduction
from Shortage Level
4 actions is up to 744
AFY
Refilling of more than one (1) foot and initial
filling of residential swimming pools or outdoor
spas with potable water is prohibited.

Yes
4 Landscape - Limit landscape
irrigation to specific times Volume
Collective reduction
from Shortage Level
4 actions is up to 744
AFY
Commercial Nurseries shall be prohibited from
watering lawn, landscaped or other turf areas
more often than every other day and shall be
prohibited from watering between the hours of
10:00 a.m. and 4:00 p.m.

Yes
4 Other Volume
Collective reduction
from Shortage Level
4 actions is up to 744
AFY
No customer shall make, cause, use or permit
the use of city water for any purpose in excess
of eighty-five percent (85%) of the amount used
the same corresponding monthly billing period
two (2) years preceding the city council
declaring a Phase I Water Supply Shortage. In
the case of a newly established business, no
restriction shall be required until such time that
the business has been established for one (1)
year, at which time the preceding year's
corresponding monthly billing shall be used to
determine the businesses monthly water
consumption.

Yes
Resolution No. 2026-033

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5 Other Volume
Collective reduction
from Shortage Level
5 plus all Shortage
Level 5 actions is up
to 930 AFY
All actions under Shortage Level 4 Yes
6 Landscape - Prohibit certain types
of landscape irrigation Volume
Collective reduction
from Shortage Level
6 actions is greater
than 930 AFY
Watering/irrigating of lawn/landscape/other
vegetated areas with potable water is
prohibited. Restriction does not apply to the
following categories of use, unless the city has
determined that recycled water is available and
may be applied to the use: Maintenance of (1)
vegetation, including trees and shrubs, that are
watered using a hand-held bucket or similar
container, hand held hose equipped with a
positive self-closing water shut-off nozzle or
device; (2) existing landscape necessary for fire
protection; (3) existing landscape for soil
erosion control; (4) plant materials identified to
be rare or essential to the well- being of
protected species; (5) landscape within active
public playing fields and school grounds,
provided that such irrigation does not exceed
two (2) days per week according to the schedule
established and the time restrictions
established above; (6) Actively irrigated
environmental mitigation projects.

Yes
6 Other - Customers must repair
leaks, breaks, and malfunctions in a
timely manner
Volume
Collective reduction
from Shortage Level
6 actions is greater
than 930 AFY
All leaks, breaks, or other malfunctions in the
water user's plumbing or distribution system
must be repaired within twenty four (24) hours
of notification by the city unless other
arrangements are made with the city.

Yes
6 Landscape - Limit landscape
irrigation to specific times Volume
Collective reduction
from Shortage Level
6 actions is greater
than 930 AFY
Commercial Nurseries shall be prohibited from
watering lawn, landscaped or other turf areas
more often than every third (3rd) day and shall
be prohibited from watering between the hours
of 6:00 a.m. and 6:00 p.m.

Yes
6 Other Volume
Collective reduction
from Shortage Level
6 actions is greater
than 930 AFY
No customer shall make, cause, use or permit
the use of city water for any purpose in excess
of seventy-five percent (75%) of the amount
used the same corresponding monthly billing
period two (2) years preceding the city council
declaring a Phase I Water Supply Shortage. In
the case of a newly established business, no
restriction shall be required until such time that
the business has been established for one (1)
year, at which time the preceding year's
corresponding monthly billing period shall be
used to determine the businesses monthly
water consumption.

Yes
6 Other Volume
Collective reduction
from Shortage Level
6 actions is greater
than 930 AFY
The use of water from a fire hydrant shall be
limited to fire fighting and related activities.

Other uses of city water for municipal purposes
shall be limited to activities necessary to
maintain the public health, safety and welfare.

Yes
6 Other Volume
Collective reduction
from Shortage Level
6 actions is greater
than 930 AFY
The city may, by written request, require all
commercial and industrial customers using 100
acre feet or more per year of potable water to
submit a water conservation plan and quarterly
progress reports on such plan. The conservation
plan shall include recommendations for
increased water savings, including increased
water recycling based on feasibility. The
quarterly report shall include progress to date
on implementation of such recommendations.

Yes
NOTES:

DWR NOTES: Units of measure (AF, CCF, MG) must remain consistent throughout the UWMP as reported in Submittal Table 2-3.

Resolution No. 2026-033

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CHAPTER 9

DEMAND MANAGEMENT MEASURES
LAY DESCRIPTION – CHAPTER 9

DEMAND MANAGEMENT MEASURES
Chapter 9 (Demand Management Measures) of the City’s 2025 Plan discusses and provides the following:
 The City has implemented “Demand Management Measures” to reduce its water demands and achieve its water use targets (discussed in Chapter 5)  The City’s Demand Management Measures include adoption of an ordinance to prevent water waste.
 The City’s Demand Management Measures include metering of all customer connections, including separate metering for single-family residential, multi-family residential, commercial, industrial, and institutional/governmental facilities.  The City’s Demand Management Measures include conservation pricing. The City’s current water rate structure promotes water conservation by customers.  The City’s Demand Management Measures include public education and outreach programs regarding water conservation.
 The City’s Demand Management Measures include various actions to assess and manage water distribution system losses.
 Additional Demand Management Measures including rebate, conservation, and educational programs are discussed.
 A summary of the Demand Management Measures the City has implemented over the past five (5) years is provided. The City met the 2020 Water Use Target Resolution No. 2026-033

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(discussed in Chapter 5) through the implementation of these Demand Management Measures.

DEMAND MANAGEMENT MEASURES FOR RETAIL SUPPLIERS
CWC 10631.
(e) Provide a description of the supplier’s water demand management measures. This description shall include all of the following:
(1)(A) For an urban retail water supplier, as defined in Section 10608.12, a narrative description that addresses the nature and extent of each water demand management measure implemented over the past five years. The narrative shall describe the water demand management measures that the supplier plans to implement to achieve its water use targets pursuant to Section 10608.20.
(B) The narrative pursuant to this paragraph shall include descriptions of the following water demand management measures:
(i) Water waste prevention ordinances.
(ii) Metering.
(iii) Conservation pricing.
(iv) Public education and outreach.
(v) Programs to assess and manage distribution system real loss. (vi) Water conservation program coordination and staffing support. (vii) Other demand management measures that have a significant impact on water use as measured in gallons per capita per day, including innovative measures, if implemented.

9.1.1 IMPLEMENTATION OVER THE PAST FIVE YEARS
The City is committed to implementing water conservation programs and works collaboratively with CBMWD to provide water conservation programs for its customers.

As a sub-agency of CBMWD, the City’s customers have the benefit of participating in Resolution No. 2026-033

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CBMWD’s conservation efforts. The highlights of DMM implementation over the past five years are described below.

As discussed in Section 9.1.3.1, the City Council previously adopted several ordinances which updated the Water Conservation Chapter of the City’s Municipal Code which provides a mechanism for the City to implement water shortage levels and is continued to be used by the City.

As discussed in Section 9.1.3.2, the City metered all customer connections, including separate metering for single-family residential, multi-family residential, commercial, industrial, and institutional/governmental facilities during the past five years.

As discussed in Section 9.1.3.3, the City’s rate structure includes a water consumption rate for its potable customers and a reduced water rate for recycled water use. These rates are designed to encourage conservation, while reducing the burden on those already conserving.

As discussed in Section 9.1.3.4, the City distributes information promoting water conservation through local news media and numerous printed materials. City staff also provide presentations at Vernon City Elementary School to highlight efficient use of resources and water conservation.

As discussed in Section 9.1.3.5, the City tracks the difference between water produced or purchased and the amount of water sold to its customers. The City’s computer billing program enables the City to log water use data and history of each service. The City can monitor unaccounted for water and perform repairs to fix leaks as necessary.

As described in Section 9.1.3.6, the conservation coordinator duties are performed by the City’s Water Administrator. The Water Administrator’s duties include managing the Resolution No. 2026-033

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provisions in the water conservation program, implementing the public information program, and planning the school education program.

As described in Section 9.1.3.7, the City participates in MWD’s “SoCal Water$mart” regional rebate program, which is available to the City’s residential and commercial customers. There are rebates available for indoor plumbing including high efficiency clothes washers and toilets. Rebates are also available for outdoor plumbing include those for weather-based irrigation controllers, rotating sprinkler nozzles, and replacement of irrigated lawn with drought tolerant plants or other approved landscape options.

9.1.2 IMPLEMENTATION TO ACHIEVE WATER USE TARGETS
CWC 10631.
(e)(1)(A) For an urban retail water supplier, as defined in Section 10608.12, a narrative description that addresses the nature and extent of each water demand management measure implemented over the past five years. The narrative shall describe the water demand management measures that the supplier plans to implement to achieve its water use targets pursuant to Section 10608.20.

The Demand Management Measures implemented by the City are discussed in Section

9.1.3. Descriptions regarding the nature and extent of these Demand Management Measures implemented by the City over the past five years are discussed in Section 9.1.1.

The City will continue to implement these Demand Management Measures and other water conservation programs and work collaboratively with Central Basin Municipal Water District to provide water conservation programs for its residents.

As indicated in Section 5.2.2, the City previously met its 2020 Water Use Target as part of the 2020 Plan. The City met the 2020 Water Use Target through the implementation of the Demand Management Measures discussed in Section 9.1.3. Continued Resolution No. 2026-033

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implementation of these Demand Management Measures will assist the City in meeting water use targets and objectives.

9.1.3 REQUIRED DEMAND MANAGEMENT MEASURES

9.1.3.1 WATER WASTE PREVENTION ORDINANCES
The City previously adopted Ordinance No. 995 (Appendix H), Ordinance No. 1115 (Appendix I), and Ordinance No. 1161 (Appendix J) which updated the Water Conservation Chapter of the City’s Municipal Code (Appendix K). The City’s Municipal Code provides a mechanism for the City to implement water shortage levels which include measures to prevent water waste include landscape irrigation during specified hours and days, use of recirculated water in decorative water features, and prohibition of washing down hard or paved surfaces.

9.1.3.2 METERING
CWC 526.
(a) Notwithstanding any other provision of law, an urban water supplier that, on or after January 1, 2004, receives water from the federal Central Valley Project under a water service contract or subcontract… shall do both of the following:
(1) On or before January 1, 2013, install water meters on all service connections to residential and nonagricultural commercial buildings… located within its service area.

CWC 527.
(a) An urban water supplier that is not subject to Section 526 shall do both of the following:
(1) Install water meters on all municipal and industrial service connections located within its service area on or before January 1, 2025.

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The City is fully metered for all customer sectors, including separate meters for single family residential, multi-family residential, commercial, industrial, large landscapes, and all institutional/governmental facilities. Further information regarding the City’s service fees and conservation pricing is provided in Section 9.1.3.3.

9.1.3.3 CONSERVATION PRICING
The City’s water rate structure includes a water consumption rate based on every hundred cubic feet of water used. After a minimum monthly meter charge, every unit of water used by customers is charged at the same water consumption rate. The City’s water rate structure also includes a reduced water rate for recycled water use. These water rates are designed to encourage conservation, while reducing the burden on those already conserving. A water rate sheet showing current rates is provided in Appendix N.

9.1.3.4 PUBLIC EDUCATION AND OUTREACH
Public information regarding the City’s mission, programs, and events are constantly distributed to numerous interested parties in order to promote water conservation. The City provides information to customers at the City’s Customer Service Counter. The City distributes numerous printed materials to the community including articles on water quality, conservation, and infrastructure improvement information. In addition, the City publishes an annual water quality report, which provides quality information, and promotes water conservation. The annual water quality report is electronically available on the City’s website, and notice of availability is mailed to every service address.

Customers can request a hard copy be mailed to them free of charge and hard copies are also available over the counter at City’s Customer Service Counter. Publications are also available for download on the City’s website.

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In coordination with CBMWD, the City provides water conservation information and links to wholesaler programs on its website.

The City is almost entirely industrial and commercial, with a very small residential population. The City’s service area includes only one school (Vernon City Elementary School). City staff provide presentations at the school to highlight efficient use of resources and water conservation. City staff also provide water facility tours to students

9.1.3.5 PROGRAMS TO ASSESS AND MANAGE DISTRIBUTION

SYSTEM REAL LOSS
The City’s estimated water system losses are discussed in Section 4.3. The City tracks the difference between water produced or purchased and the amount of water sold to its customers. All water delivered to the City is recorded on master meters connected to each well. Water distributed by the City to its customers is metered, with the exception of water used from fire hydrants for emergencies, periodic flushing, leaks and theft. The City’s computer billing program enables the City to log water use data and history of each service. Data for each service includes an account number, address, meter size and charges along with the water usage. With this data, the City can monitor unaccounted for water and perform repairs to fix leaks as necessary.

9.1.3.6 WATER CONSERVATION PROGRAM COORDINATION AND

STAFFING SUPPORT
The City’s designated water conservation coordinator is the Water Administrator. The Water Administrator spends approximately five percent of the time managing the provisions in the water conservation program, implementing the public information program, and planning the school education program. During periods of declared drought, the time allocated to conservation duties increases. The Water Administrator often Resolution No. 2026-033

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represents the City at regional and statewide workshops and organizations. In addition, the Water Administrator also seeks Federal, State, and local funding to develop new programs that promote water conservation throughout the City’s water service area.

9.1.3.7 OTHER DEMAND MANAGEMENT MEASURES
The City participates in MWD’s “SoCal Water$mart” rebate program. Through MWD’s SoCal Water$mart, residential and commercial customers are eligible for rebates to help encourage water efficiency and conservation. The SoCal Water$mart program offers rebates on a wide variety of water-saving technologies including high efficiency clothes washers and toilets. Rebates are also available for outdoor plumbing include those for weather-based irrigation controllers, rotating sprinkler nozzles, and replacement of irrigated lawn with drought tolerant plants or other approved landscape options.

DEMAND MANAGEMENT MEASURES FOR WHOLESALE SUPPLIERS
CWC 10631.
(e) Provide a description of the supplier’s water demand management measures. This description shall include all of the following:
(2) For an urban wholesale water supplier, as defined in Section 10608.12, a narrative description of the items in clauses (ii), (iv), (vi), and (vii) of subparagraph (B) of paragraph (1), and a narrative description of its distribution system asset management and wholesale supplier assistance programs.

The City is not a wholesale agency and is not required by DWR to complete Section 9.2.

Resolution No. 2026-033

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CHAPTER 10

PLAN ADOPTION, SUBMITTAL, AND IMPLEMENTATION
LAY DESCRIPTION – CHAPTER 10

PLAN ADOPTION, SUBMITTAL, AND IMPLEMENTATION
Chapter 10 (Plan Adoption, Submittal, and Implementation) of the City’s 2025 Plan discusses and provides the following:
 The steps the City has performed to adopt and submit its 2025 Plan are detailed  The steps the City has performed to adopt and submit its Water Shortage Contingency Plan are detailed
 The City coordinated the preparation of its 2025 Plan with the City of Vernon, the County of Los Angeles, and CBMWD. The City notified these agencies at least sixty (60) days prior to the public hearing of the preparation of the 2025 Plan and invited these agencies to participate in the development of the 2025 Plan.  The City provided a notice of the public hearing to the same agencies regarding the time, date, and place of the public hearing.
 The City published a newspaper notification of the public hearing, once a week for two successive weeks
 The City conducted a public hearing to discuss and adopt the City’s 2025 Plan and City’s Water Shortage Contingency Plan.
 Within 30 days of adoption, the City submitted the 2025 Plan and Water Shortage Contingency Plan to the California Department of Water Resources.  Within 30 days of adoption, the City submitted all data tables associated with the 2025 Plan to the California Department of Water Resources.

Resolution No. 2026-033

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 Within 30 days of adoption, the City submitted a copy of the 2025 Plan to the State of California Library.
 Within 30 days of adoption, the City submitted a copy of the 2025 Plan (and Water Shortage Contingency Plan) to the County of Los Angeles Registrar- Recorder/ Clerk’s office and the City Clerk’s Office.
 Within 30 days after submittal of the 2025 Plan to the California Department of Water Resources, the City made the 2025 Plan (including the Water Shortage Contingency Plan) available at the City Clerk’s Office and on the City’s website.  The steps the City will perform to amend the 2025 Plan and/or the Water Shortage Contingency Plan, if necessary, are provided.

PLAN COMPLETION TIMELINE
The data provided in the City’s 2025 Plan and the Water Shortage Contingency Plan is provided on a CY basis through December 31, 2025 (as discussed in Section 2.5).

NOTICE OF PLAN PREPARATION
CWC 10621.
(b) Every urban water supplier required to prepare a plan shall … at least 60 days prior to the public hearing on the plan … notify any city or county within which the supplier provides waters supplies that the urban water supplier will be reviewing the plan and considering amendments or changes to the plan.

As discussed in Section 2.4.2, the City coordinated the preparation of the 2025 Plan with Central Basin Municipal Water District. The City notified this agency, as well the cities and county within which the City provides water supplies, at least sixty (60) days prior to Resolution No. 2026-033

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the public hearing of the preparation of the 2025 Plan and invited them to participate in the development of the Plan. A copy of the notification letters sent to these agencies is provided in Appendix D.

NOTICE OF PUBLIC HEARING
CWC 10642.
…Prior to adopting either, the urban water supplier shall make both the plan and the water shortage contingency plan available for public inspection and shall hold a public hearing or hearings thereon. Prior to any of these hearings, notice of the time and place of the hearing shall be published within the jurisdiction of the publicly owned water supplier pursuant to Section 6066 of the Government Code. The urban water supplier shall provide notice of the time and place of a hearing to any city or county within which the supplier provides water supplies.

Government Code 6066.

Publication of notice pursuant to this section shall be once a week for two successive weeks.

Two publications in a newspaper published once a week or oftener, with at least five days intervening between the respective publication dates not counting such publication dates, are sufficient. The period of notice commences upon the first day of publication and terminates at the end of the fourteenth day, including therein the first day.

The City provided a notice of the public hearing to the City of Vernon and the County of Los Angeles. The notice includes the time and place of the public hearing. Copies of the notice of the public hearing are provided in Appendix D. Table 10-1 summarizes the agencies which were provided notifications by the City.

The City encouraged the active involvement of the population within its service area prior to and during the preparation of the Plan. Pursuant to Section 6066 of the Government Code, the City published a notice of public hearing in the newspaper during the weeks of June 1, 2026 and June 8, 2026. A notice of public hearing was also provided to the City Clerk’s office and was posted throughout the City of Vernon and on the City’s website. A copy of the published notice is provided in Appendix D. To ensure the draft 2025 Plan Resolution No. 2026-033

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and the draft Water Shortage Contingency Plan were available for review, the City placed a copy at the City Clerk’s Office located at City Hall and made a copy available for review on its website.

PUBLIC HEARING AND ADOPTION
CWC 10642.

Each urban water supplier shall encourage the active involvement of diverse social, cultural, and economic elements of the population within the service area prior to and during the preparation of both the plan and the water shortage contingency plan. Prior to adopting either, the urban water supplier shall make both the plan and the water shortage contingency plan available for public inspection and shall hold a public hearing or hearings thereon…. After the hearing or hearings, the plan or water shortage contingency plan shall be adopted as prepared or as modified after the hearing or hearings.

Government Code Section 7291
…every local public agency… serving a substantial number of non- English-Speaking people, shall employ a sufficient number of qualified bilingual persons in public contact positions or as interpreters to assist those in such positions, to ensure provision of information and services in the language of the non-English-speaking person.

Prior to adopting the draft 2025 Plan and the draft Water Shortage Contingency Plan, the City held a public hearing on June 16, 2026 which included input from the community regarding the City’s draft 2025 Plan and the draft Water Shortage Contingency Plan.

Following the public hearing, the City adopted both the draft 2025 Plan and the draft Water Shortage Contingency Plan (included in Chapter 8). A copy of the resolution adopting the 2025 Plan and the Water Shortage Contingency Plan is provided in Appendix O.

Resolution No. 2026-033

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PLAN SUBMITTAL
CWC 10621.
(e) .Each urban water supplier shall update and submit its 2025 plan to the department by July 1, 2026…
CWC 10635.
(c) The urban water supplier shall provide that portion of its urban water management plan prepared pursuant to this article to any city or county within which it provides water supplies no later than 60 days after the submission of its urban water management plan.

CWC 10644.
(a) (1) An urban water supplier shall submit to the department, the California State Library, and any city or county within which the supplier provides water supplies a copy of its plan no later than 30 days after adoption.

The City’s submittal process for its 2025 Plan and the Water Shortage Contingency Plan is discussed below.

10.5.1 SUBMITTING A UWMP AND WATER SHORTAGE

CONTINGENCY PLAN TO DWR
Within 30 days of adoption of the 2025 Plan by the City Council, the City submitted the adopted 2025 Plan (including the Water Shortage Contingency Plan) to DWR. The 2025 Plan and Water Shortage Contingency Plan were submitted through DWR’s “Water Use Efficiency (WUE) Data Portal” website.

DWR developed a checklist which was used by the City to assist DWR with its determination that the City’s 2025 Plan has addressed the requirements of the California Water Code. The City has completed the DWR checklist by indicating where the required CWC elements can be found within the City’s 2025 Plan (See Appendix B).

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10.5.2 ELECTRONIC DATA SUBMITTAL
CWC 10644.
(a)(2) The plan, or amendments to the plan, submitted to the department …shall be submitted electronically and shall include any standardized forms, tables, or displays specified by the department.

Within 30 days of adoption of the 2025 Plan, the City submitted all data tables associated with the 2025 Plan through DWR’s “Water Use Efficiency Data Portal” website.

10.5.3 SUBMITTING A UWMP, INCLUDING WSCP, TO THE

CALIFORNIA STATE LIBRARY
Within 30 days of adoption of the 2025 Plan by the City Council, a copy (CD or hardcopy) of the 2025 Plan was submitted to the State of California Library. A copy of the letter to the State Library will be maintained in the City’s file. The 2025 Plan will be mailed to the following address if sent by regular mail:

California State Library
Government Publications Section
Attention: Coordinator, Urban Water Management Plans
P.O. Box 942837
Sacramento, CA 94237-0001
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The 2025 Plan will be mailed to the following address if sent by courier or overnight carrier:

California State Library
Government Publications Section
Attention: Coordinator, Urban Water Management Plans
900 N Street
Sacramento, CA 95814

10.5.4 SUBMITTING A UWMP TO CITIES AND COUNTIES
Within 30 days of adoption of the 2025 Plan (including the Water Shortage Contingency Plan) by the City Council, a copy of the 2025 Plan was submitted to the County of Los Angeles Registrar / Recorders office and the City Clerk’s Office. A copy of the letter to the County of Los Angeles will be maintained in the City’s file.

PUBLIC AVAILABILITY
CWC 10645.
(a) Not later than 30 days after filing a copy of its plan with the department, the urban water supplier and the department shall make the plan available for public review during normal business hours.
(b) Not later than 30 days after filing a copy of its water shortage contingency plan with the department, the urban water supplier and the department shall make the plan available for public review during normal business hours.

Within 30 days after submittal of the 2025 Plan to DWR, the City made the 2025 Plan (including the Water Shortage Contingency Plan) available at the City Clerk’s Office located at City Hall during normal business hours and on the City’s website.

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NOTIFICATION TO PUBLIC UTILITIES COMMISSION
CWC 10621.
(c) An urban water supplier regulated by the Public Utilities Commission shall include its most recent plan and water shortage contingency plan as part of the supplier’s general rate case filings.

The City is not regulated by the California Public Utilities Commission.

PLAN IMPLEMENTATION
CWC 10643.

An urban water supplier shall implement its plan adopted pursuant to this chapter in accordance with the schedule set forth in its plan.

The City will implement any schedules set forth in the adopted 2025 Plan.

AMENDING AN ADOPTED UWMP OR WATER SHORTAGE CONTINGENCY
PLAN
CWC 10621.
(d) The amendments to, or changes in, the plan shall be adopted and filed in the manner set forth in Article 3 (commencing with Section 10640).

CWC 10644.

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(a)(1) Copies of amendments or changes to the plans shall be submitted to the department, the California State Library, and any city or county within which the supplier provides water supplies within 30 days after adoption.

The City’s amendment process for its 2025 Plan is discussed below.

10.9.1 AMENDING A UWMP OR WSCP
If the City amends the adopted 2025 Plan, the City will conduct a similar notification and public hearing process for the amended 2025 Plan as discussed in Sections 10.2, 10.3, and 10.4. The amended Plan will then be submitted to DWR, the State of California Library, the County of Los Angeles Registrar / Recorders office, and the City Clerk’s Office.

10.9.2 SUBMITTING REVISED WATER SHORTAGE CONTINGENCY
PLAN
CWC 10644.
(a) If an urban water supplier revises its water shortage contingency plan, the supplier shall submit to the department a copy of its water shortage contingency plan prepared…no later than 30 days after adoption, in accordance with protocols for submission and using electronic reporting tools developed by the department.

If the City amends the adopted 2025 Plan (including the Water Shortage Contingency Plan), the amended Plan (and Water Shortage Contingency Plan) will undergo adoption by the City’s governing board. Within 30 days of adoption, the amended Plan (and Water Shortage Contingency Plan) will then be submitted to DWR, the State of California Library, the County of Los Angeles Registrar / Recorders office, and the City Clerk’s Office.

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CALIFORNIA DEPARTMENT OF WATER RESOURCES REVIEW OF

SUBMITTED PLANS
As discussed in Section 1.5, DWR will review the 2025 Plans to ensure that they address the California Water Code requirements. Following DWR’s review, water suppliers will be notified of the results of the review via a formal review letter. These review letters will also be available to the public on DWR’s WUEdata portal. In cases where DWR finds that a Plan does not properly address item(s) in the Water Code, DWR will reach out to the water supplier to discuss needed corrections and correction procedures.

SUBMITTAL TABLES
The applicable standardized Submittal Tables referenced within Chapter 10 are provided below.

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10.11.1 SUBMITTAL TABLE 10-1: NOTIFICATION TO CITIES AND

COUNTIES
Table 10-1 Notification to Cities and Counties
City Name 60 Day Notice
Drop Down (yes/no)
Notice of Public
Hearing
Drop Down (yes/no)
Vernon Yes Yes
County Name
Drop Down List
60 Day Notice
Drop Down (yes/no)
Notice of Public
Hearing
Drop Down (yes/no)
Los Angeles County Yes Yes
Submittal Table 10-1 Retail: Notification to Cities and Counties
Water Code Section 10621(b) and 10642
Add additional rows as needed
Add additional rows as needed
NOTES:

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Hubbard St
W Riggin S t
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D ewar Ave
E 3rd S t
Whit tier Blvd
E Olympic Blvd
W Beverly
B
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Eas t Los
Angeles
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Loma Vista Ave Salt Lake Ave
cox A Wil ve
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Atlantic Ave
Garfie d Ave l
Bandini Blvd
E Sl
aus
on Ave
E Slauson Ave
S Downey Rd
Cudahy
Bell
Maywood
Commerce
Bell Gardens
Water System Boundary
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CITY OF VERNON

WATER SERVICE AREA
Ü
0 0.3 0.6
Miles
FIGURE 1
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12th S t
Crocker S
Wall S t
Sot S o S t
E 7th S t
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E 16th St
arb H r
o
na Fwy
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S t
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E Slauso
n Ave
Long Beach Blvd
Leonis Blv
d
E
Gage Ave
d lon Blv Ava
E Vernon Ave
Firest
one
Blvd
Vernon
Walnut Park
Huntington
Park
Florence -Graham
S Woods Ave
y Rd wne S Do
S Ge hr ar e t Av
n Ave S Rowa
Hubbard St
W Riggin S t
W Pomona Blv
d
D ewar Ave
E 3rd S t
Whit tier Blvd
E Olympic Blvd
W Beverly
B
Whit tier
Blvd
Hazard
Eas t Los
Angeles
5 E 26th S t
Loma Vista Ave Salt Lake Ave
cox A Wil ve
Rand
olph
S t
Ferg
uson
Dr
Flo
ren
ce
Pl
Northside Dr
Ave Otis
Broad
way
Liv
e Oa
k S t
Triggs
S t
Bissell S t
Gif ford Ave
S Downey Rd
Ave Ajax
Wiley Burk Ave e
Filmore S
t
Liberty Blv
d
Harbor S t
Plaska Ave
Atlantic Ave
Garfie d Ave l
Bandini Blvd
E Sl
aus
on Ave
E Slauson Ave
S Downey Rd
Cudahy
Bell
Maywood
Commerce
Bell Gardens
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CITY OF VERNON

WATER SERVICE AREA AND CITY BOUNDARIES
FIGURE 2 Ü
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Miles
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CITY OF VERNON

CENTRAL BASIN LOCATION
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NOTICE OF CITY COUNCIL PUBLIC HEARING
The City Council of the City of Vernon will conduct a public hearing on Tuesday, June 16, 2026, at 9:00 a.m. (or as soon thereafter as the matter can be heard) which you may attend at Vernon City Hall, City Council Chamber, 4305 Santa Fe Avenue, Vernon, CA 90058 to:

Consider Adoption of the 2025 Urban Water Management Plan (UWMP) and the Water Shortage Contingency Plan (WSCP)
On June 16, 2026, the City Council will conduct a public hearing to consider the adoption of the 2025 UWMP and WSCP. The purpose of the hearing is to consider public comments prior to recommending that the City Council adopt the proposed 2025 UWMP, including the proposed WSCP.

The proposed 2025 UWMP and WSCP are prepared in accordance with the California Urban Water Management Planning Act (Act). The Act requires the City, as an urban water supplier, to prepare and adopt an Urban Water Management Plan to analyze water management issues unique to its water service area, including local and imported water supply sources, forecasted water demands, water conservation issues, and water shortage contingency planning. The City is required to update its plan at least once every five years with last adoption by the City Council occurring in 2021.

All relevant documents will be available for public review on the City’s website once the agenda for the meeting is posted or from the City Clerk at [email protected] or (323) 583-8811, ext. 546. All interested persons will be given an opportunity to comment on the above-referenced items during the public hearing. In addition, written comment or questions may be submitted prior to the hearing as set forth below. Written Testimony or questions must be received prior to 9:00 a.m. on the date of the hearing.

Please send your comments or questions to:

Joanna Moreno, P.E., Water Administrator
City of Vernon
4305 Santa Fe Avenue, Vernon, CA 90058
(323) 583-8811, ext. 888 Email: [email protected] If you challenge the adoption of the 2025 UWMP and WSCP or any provision thereof in court, you may be limited to raising only those issues you or someone else raised at the hearing described in this notice or in written correspondence delivered to the City of Vernon at, or prior to, the meeting.
.
.

Item 21 Page 627 of 835
In compliance with the Americans with Disabilities Act (ADA), if you need special assistance to participate in the meeting, please contact the City Clerk Department at (323) 583-8811, ext. 546 at least 48 hours prior to the meeting to assure arrangements can be made.

The hearing may be continued, adjourned, or cancelled and rescheduled to a stated time and place without further notice of a public hearing.

Dated: May 27, 2026 Genoveva Rocha, City Clerk
Publish: June 1 and June 8, 2026
.
.

Item 21 Page 628 of 835

CALIFORNIA NEWSPAPER SERVICE BUREAU
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D A I L Y J O U R N A L C O R P O R A T I O N
To the right is a copy of the notice you sent to us for publication in the LA OPINION. Please read this notice carefully and call us with any corrections.

The Proof of Publication will be filed with the County Clerk, if required, and mailed to you after the last date below. Publication date(s) for this notice is (are):

Daily Journal Corporation
Serving your legal advertising needs throughout California. Call your local Mailing Address : 915 E 1ST ST, LOS ANGELES, CA 90012
Telephone (213) 229-5300 / Fax (213) 229-5481
Visit us @ WWW.LEGALADSTORE.COM

GENOVEVA ROCHA

CITY OF VERNON CITY CLERK
4305 SANTA FE AVE
VERNON, CA 90058

HRG NOTICE OF HEARING
Notice of Public Hearing - Urban Water Management Plan
06/01/2026 , 06/08/2026
BUSINESS JOURNAL, RIVERSIDE (951) 784-0111
DAILY COMMERCE, LOS ANGELES (213) 229-5300
LOS ANGELES DAILY JOURNAL, LOS ANGELES (213) 229-5300
ORANGE COUNTY REPORTER, SANTA ANA (714) 543-2027
SAN FRANCISCO DAILY JOURNAL, SAN FRANCISCO (800) 640-4829 SAN JOSE POST-RECORD, SAN JOSE (408) 287-4866
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Notice Type:

Ad Description:

COPY OF NOTICE
4047857
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An invoice will be sent after the last date of publication. If you prepaid this order in full, you will not receive an invoice.

NOTICEOFCITY

COUNCIL

PUBLICHEARING
TheCityCouncilofthe
CityofVernonwill
conductapublichearing
onTuesday,June16,
2026,at9:00a.m.(oras
soonthereafterasthe
mattercanbeheard)
whichyoumayattendat
VernonCityHall,City
CouncilChamber,4305
SantaFeAvenue,
Vernon,CA90058to:

ConsiderAdoptionof
the2025UrbanWater
ManagementPlan
(UWMP)andtheWater
ShortageContingency
Plan(WSCP)
OnJune16,2026,the
CityCouncilwillconduct
apublichearingto
considertheadoptionof
the2025UWMPand
WSCP.Thepurposeof
thehearingistoconsider
publiccommentspriorto
recommendingthatthe
CityCounciladoptthe
proposed2025UWMP,
includingtheproposed
WSCP.

Theproposed2025
UWMPandWSCPare
preparedinaccordance
withtheCaliforniaUrban
WaterManagement
PlanningAct(Act).The
ActrequirestheCity,as
anurbanwatersupplier,
toprepareandadoptan
UrbanWater
ManagementPlanto
analyzewater
managementissues
uniquetoitswater
servicearea,including
localandimportedwater
supplysources,
forecastedwater
demands,water
conservationissues,and
watershortage
contingencyplanning.

TheCityisrequiredto
updateitsplanatleast
onceeveryfiveyears
withlastadoptionbythe
CityCounciloccurringin
2021.

Allrelevantdocuments
willbeavailableforpublic
reviewontheCity's
websiteoncetheagenda
forthemeetingisposted
orfromtheCityClerkat
cityclerk@cityofvernonca.
govor(323)583-8811,
ext.546.Allinterested
personswillbegivenan
opportunitytocomment
ontheabove-referenced
itemsduringthepublic
hearing.Inaddition,
writtencommentor
questionsmaybe
submittedpriortothe
hearingassetforth
below.WrittenTestimony
orquestionsmustbe
receivedpriorto9:00
a.m.onthedateofthe
hearing.

Pleasesendyour
commentsorquestions
to:J
oannaMoreno,P.E.,
WaterAdministrator
CityofVernon
4305SantaFeAvenue,
Vernon,CA90058
(323)583-8811,ext.888
Email:
jmoreno@cityofvernonca.
gov
Ifyouchallengethe
adoptionofthe2025
UWMPandWSCPor
anyprovisionthereofin
court,youmaybelimited
toraisingonlythose
issuesyouorsomeone
elseraisedatthehearing
describedinthisnoticeor
inwritten
correspondence
deliveredtotheCityof
Vernonat,orpriorto,the
meeting.

Incompliancewiththe
Americanswith
DisabilitiesAct(ADA),if
youneedspecial
assistancetoparticipate
inthemeeting,please
contacttheCityClerk
Departmentat(323)583-
8811,ext.546atleast48
hourspriortothemeeting
toassurearrangements
canbemade.

Thehearingmaybe
continued,adjourned,or
cancelledand
rescheduledtoastated
timeandplacewithout
furthernoticeofapublic
hearing.

Dated:May27,2026
GenovevaRocha,City
Clerk
Publish:June1andJune
8,2026
6/1,6/8/26
CNS-4047857#

LAOPINION
..

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