Coachella City Council
June 10, 2026

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 8-26
Table 8-26. DWR 7-2R Normal Year Supply and Demand Comparison - 2030 2035 2040 2045 2050
Supply Totals (AFY)
From DWR Table 6-9R 9,578 11,464 13,074 15,033 16,991
Demand Totals (AFY)
From DWR Table 4-3R 9,578 11,464 13,074 15,033 16,991
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 0 0 0 0 0
Revised
Surplus/(Shortfall)
0 0 0 0 0
Note: Recycled water used for groundwater recharge is presented as a supply and a demand for consistency with DWR reporting framework.

Note: The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability. During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here.

8.7.2.1 Single Dry Year
The single dry year represents a “worst-case” scenario for demand response, jumping to 111 percent of normal conditions in a single year. Due to the reliability of the region’s groundwater basin, water supply availability during a single-dry year scenario was assumed to be similar to the average year scenario.

Projected single dry year District supplies and demands are shown in Table 8-27. Demand is assumed to increase during a single-dry year due to increased irrigation needs. This analysis does not include WSCP use reduction in a single dry year. Urban water supplies during the single dry year are fully reliable as groundwater in storage in the Mission Creek Subbasin is available to serve increased demand. Thus, the supply and demand comparison for the single dry year results in no shortages.

Table 8-27. DWR 7-3R Single Dry Year Supply and Demand Comparison - 2030 2035 2040 2045 2050
Supply Totals (AFY) 10,631 12,602 14,271 16,290 18,310
Demand Totals (AFY) 10,631 12,602 14,271 16,290 18,310
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 0 0 0 0 0
Revised Surplus/(Shortfall) 0 0 0 0 0
Note: Recycled water used for groundwater recharge is presented as a supply and a demand for consistency with DWR reporting framework.

Note: The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability. During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here.

8.7.2.2 Multiple Dry Years
Reliability during a multiple-dry year scenario was assumed to be similar to the average year scenario for reasons discussed previously. Demand is expected to increase during multiple dry year periods due to increased irrigation needs. It is assumed that MSWD’s WSCP would be implemented in the second year of a multiple-dry-year period, reducing some of the increased demand. This reliability forecast conservatively assumes that the WSCP will reduce water use by five percent in the second through fifth years of a multiple year drought. Projected multiple dry-year average-annual District supplies and demands are shown in Table 8-28. The multiple dry year urban water supply reliability is 100 percent, as groundwater in storage in Mission Creek Basin will be used to supplement increased demand. In five consecutive dry year conditions, there are no shortages.

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2025 Coachella Valley Regional Urban Water Management Plan 8-27
Table 8-28. DWR 7-4R Multiple Dry Years Supply and Demand Comparison - - 2030 2035 2040 2045 2050
First Year
Supply Totals (AFY) 9,865 11,774 13,401 15,376 17,351
Demand Totals (AFY) 9,865 11,774 13,401 15,376 17,351
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 0 0 0 0 0
Revised Surplus/(Shortfall) 0 0 0 0 0
Second Year
Supply Totals (AFY) 10,057 11,981 13,618 15,604 17,591
Demand Totals (AFY) 10,057 11,981 13,618 15,604 17,591
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 477 515 541 569 597
Revised Surplus/(Shortfall)1 0 0 0 0 0
Third Year
Supply Totals (AFY) 10,248 12,188 13,836 15,833 17,831
Demand Totals (AFY) 10,248 12,188 13,836 15,833 17,831
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 486 524 551 580 608
Revised Surplus/(Shortfall)1 0 0 0 0 0
Fourth Year
Supply Totals (AFY) 10,440 12,395 14,053 16,062 18,070
Demand Totals (AFY) 10,440 12,395 14,053 16,062 18,070
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 495 534 562 591 619
Revised Surplus/(Shortfall)1 0 0 0 0 0
Fifth Year
Supply Totals (AFY) 10,631 12,602 14,271 16,290 18,310
Demand Totals (AFY) 10,631 12,602 14,271 16,290 18,310
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 504 544 572 601 631
Revised Surplus/(Shortfall)1 0 0 0 0 0
Note: Recycled water used for groundwater recharge is presented as a supply and a demand for consistency with DWR reporting framework.
1The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability.

During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here. Conversely, any water use reduction as a result of WSCP implementation will result in reduced groundwater production and groundwater will remain in storage for future use.

Historically, the groundwater basin has shown signs of overdraft, which could impact reliability in the long term. The implementation of ongoing groundwater management efforts (see Chapter 3 of the RUWMP) seeks to ensure groundwater levels are maintained to mitigate potential overdraft conditions of the basin.

MSWD also continues to implement DMMs to decrease the annual volume of water consumed, along with recycled water for future groundwater replenishment.

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2025 Coachella Valley Regional Urban Water Management Plan 8-28

8.7.3 Drought Risk Assessment
The five-year Drought Risk Assessment (DRA) is intended to evaluate current water supply availability by simulating demand and supply for the next five years under multiple dry year conditions.

Demands are expected to increase from current 2025 demands based on the assumptions during multi-dry year periods. For MSWD, the multiple dry year demand increases by two percent year-over-year from 103 to 111 percent of normal conditions. It is expected that conservation messaging and programs will prevent any significant increase in demands from existing customers due to dry conditions. The groundwater supply is reliable for a five-year dry period as the volume in storage can be drawn down during a dry period.

The data and methodologies used to identify a potential shortage are described in the WSCP. Based on the reliability analysis in Section 8.7, the supply of groundwater is fully reliable under a five-year drought, including consideration of historic droughts in the Coachella Valley and potential impacts of climate change.

The results of the DRA, including estimated savings from the implementation of the WSCP, are summarized in Table 8-29. Any water shortage can be mitigated through use of groundwater in storage and demand reduction via WSCP implementation.

Table 8-29. DWR 7-5 Five-Year Drought Risk Assessment
2026 Gross Water Use (AFY) 8,134
Total Supplies (AFY) 8,134
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit)
Revised Surplus/(Shortfall) 0
Resulting Percent Use Reduction from WSCP Action 0%
2027 Gross Water Use (AFY) 8,292
Total Supplies (AFY) 8,292
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 375
Revised Surplus/(Shortfall)1 0
Resulting Percent Use Reduction from WSCP Action 5%
2028 Gross Water Use (AFY) 8,450
Total Supplies (AFY) 8,450
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 382
Revised Surplus/(Shortfall)1 0
Resulting Percent Use Reduction from WSCP Action 5%

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2025 Coachella Valley Regional Urban Water Management Plan 8-29
2029 Gross Water Use (AFY) 8,608
Total Supplies (AFY) 8,608
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 389
Revised Surplus/(Shortfall)
1 0
Resulting Percent Use Reduction from WSCP Action 5%
2030 Gross Water Use (AFY) 8,756
Total Supplies (AFY) 8,756
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 397
Revised Surplus/(Shortfall)1 0
Resulting Percent Use Reduction from WSCP Action 5%
1The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability.

During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here.

8.8 Water Shortage Contingency Plan
MSWD has developed a WSCP that outlines its strategy for assessing and responding to potential water shortages. Building on the region’s overall high water supply reliability, the WSCP prepares for risks such as prolonged drought, infrastructure failure, regulatory restrictions, contamination, and other emergencies.

It establishes procedures for annual water supply and demand assessments, coordination among regional water agencies, and use of six standardized shortage levels that range from minimal conservation requirements to severe, mandatory restrictions when more than 50 percent supply reduction occurs.

To manage shortages, the WSCP details a suite of supply augmentation methods, demand reduction actions, operational adjustments, communication protocols, and enforcement mechanisms. Actions escalate by shortage level and may include outdoor irrigation limits, reduced water budgets, expanded public outreach, drought surcharges, mandatory rationing, and prohibitions on potable outdoor use. The WSCP also describes financial implications, monitoring and reporting requirements, seismic risk considerations, and emergency response coordination with regional partners. It sets forth legal authorities supporting plan implementation and provides the procedures for adoption, future amendments, and public engagement.

The MSWD WSCP is included in Appendix C of this RUWMP.

8.9 Demand Management Measures
The goal of the Demand Management Measures (DMM) section is to provide a comprehensive description of the water conservation programs that the District has implemented, is currently implementing, and plans to implement to increase water use efficiency.

8.9.1 Existing Demand Management Measures
MSWD has made the State-mandated DMMs a key element in the overall water resource management strategy. MSWD is dedicated to implementing water conservation measures, as demonstrated in the District’s 2004 Water Conservation Master Plan. The Water Conservation Master Plan defines a series of sensible water conservation activities that complement the unique water resource characteristics of MSWD’s service area. The Plan represents a qualitative effort at identifying and screening potential

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 8-30
conservation initiatives and the data will assist MSWD in determining which initiatives should be continued to meet long-term conservation objectives.

As part of the Water Conservation Master Plan, MSWD identified factors affecting water conservation within its service area. Significant factors are impacting water use include the following: limited availability of water as a resource in Coachella Valley; MSWD’s 100 percent dependency on groundwater as a water source; lack of other potable water sources and limited emergency interconnections; assessments to DWA for future imported water supply; continued new residential development in the City of Desert Hot Springs; risk of future degradation of groundwater supplies from septic systems, and commercial and industrial development; and the need to implement costly new sources of water (reclamation/conjunctive use, etc.).

The water conservation principles identified in MSWD’s Water Conservation Master Plan were outlined and include detailed tasks. Overall, the District aims to employ the following principles:
• Clarify and summarize MSWD’s conservation programs, reflecting conservation commitments made through the UWMP and other programs.
• Ensure that the conservation measures adopted by MSWD treat all customers fairly and equitably. • Do not create undue pressure on revenue stability resulting in water costs exceeding local socioeconomic conditions. • Identify and establish measurable conservation targets to be accomplished by MSWD within a reasonable period of time.
• Develop sensible approaches for practical, cost-effective and efficient conservation programs which anticipate and serve the long-term needs of MSWD customers. • Facilitate MSWD’s ability to provide a dependable, reliable supply of water.

The District’s implementation of the DMMs and other water conservation measures are discussed below.

8.9.1.1 Water Waste Prevention Ordinances
In 2004, MSWD adopted two major conservation policy statements: a water conservation master plan and water efficient landscaping guidelines. The Water Conservation Master Plan identifies several key areas in which MSWD will pursue more efficient water use practices, namely: efficient landscaping guidelines; efficient landscaping requirements for new development; and xeriscape demonstration garden; efficient landscaping incentives; conservation education programs in schools, community and bimonthly billing information; tiered water pricing that encourages conservation; updated water shortage ordinance; water audits for the largest users; and rebates for water efficient plumbing fixtures.

Chapter 5.02.040 General Rules (Ordinance 1993-03) provides a statement that customers who knowingly waste water may have their service discontinued by MSWD if conditions are not corrected after being given a violation (MSWD 2025a).

8.9.1.2 Metering
MSWD maintains water meters on all residential, commercial, industrial and municipal connections to it’s water distribution system.

MSWD has an aggressive meter replacement program. Meters are re-built or replaced on a multi-year cycle to ensure accuracy and proper functioning. The District’s water system is fully metered. Therefore, MSWD completes annual checks on the accuracy and operation of production meters by either recalibrating and reinstalling meters, or by replacing meters that do not fall within the required operating range of AWWA standards. Monthly non-revenue water is accounted for. In 2020, MSWD completed a system-wide upgrade to AMI, which allows for the direct transmission of water use data between the point of consumption and the utility. As such, AMI provides a higher level of accuracy, eliminates the need to manually read water meters, improves overall efficiency of operations, and allows for the identification of potential leaks.

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2025 Coachella Valley Regional Urban Water Management Plan 8-31

8.9.1.3 Conservation Pricing
MSWD has a tiered rate structure for water service within its service area. The tiered rate structure is intended to discourage high water use. MSWD may also enact a drought surcharge, as required by Statewide drought measures. For example, during the 2016 California Drought, MSWD implemented a temporary $0.05 per hundred cubic feet drought surcharge, consistent with State drought requirements.

MSWD currently imposes a fixed monthly charge based on meter size and a three-tiered rate structure that impose high rates as water use increases per 100 cubic feet. Most of MSWD’s water customers also receive sewer service from the District. MSWD imposes rates for sewer service based on maximum potential water usage, billed at a uniform rate for single-family and multi-family residential customers. Commercial sewer service fees are based on water usage and also promote water conservation.

8.9.1.4 Public Education and Outreach
MSWD maintains a website (www.MSWD.org) which provides a wide variety of conservation information on Methods to reduce water use; Watering restrictions; A dedicated conservation page; A water efficient planting database; An evaporative cooler maintenance program and primer; Fines and surcharges associated with violation of watering restrictions; Water rebates for installing certain water saving devices and turf removal; and Other frequently asked questions regarding water use and conservation. There is also a section on the MSWD website to report water waste or unauthorized use to the Agency via Survey123 form.

MSWD has also actively leveraged social media platforms like Facebook and Instagram to share campaign visuals, promote rebate deadlines, and celebrate community participation. These posts include graphics, testimonials, and seasonal reminders that align with conservation themes. Additionally, collaborations with local HOAs and property managers—such as the Skyborne & Desert Resort Management Partnership— have enabled targeted outreach through email campaigns and digital flyers. These integrated communication efforts have helped MSWD reach a broader audience, foster community engagement, and drive measurable participation in water-saving programs. Social media campaigns have been used to share visually engaging content that highlights rebate opportunities and conservation success stories, with posts that include graphics and calls to action aligned with seasonal outreach efforts. Targeted mailers and press releases have also been distributed to reinforce messaging around conservation goals and rebate availability, helping to reach residents who may not engage digitally. These communication efforts have played a vital role in increasing public awareness and driving participation in MSWD’s conservation programs, particularly among disadvantaged communities in Desert Hot Springs and surrounding areas.

Moreover, MSWD has partnered with Southern California Edison (SCE) and Southern California Gas Company (SCGC) in school education outreach programs that provide information to children to learn the importance of water conservation.

The Groundwater Guardian Program is a community educational program developed by The Groundwater Foundation, a private, non-profit educational organization recognized internationally (see https://groundwater.org/groundwater-guardian/). "Designation as a Groundwater Guardian Community is presented by The Groundwater Foundation to communities which demonstrate an ongoing participatory approach to protecting groundwater resources." "For continuing designation as a Groundwater Guardian, a community must submit an Annual Entry Form and proposed ROA (Result Oriented Activities) Plan(s) by February each year; continue ongoing activities; and submit an Annual Report in August each year." For more information about The Groundwater Foundation and/or the Groundwater Guardian Program see www.groundwater.org.

The Desert Hot Springs community has three Groundwater Guardian Teams and a Groundwater Guardian Affiliate:
• Desert Hot Springs Groundwater Guardian Team (Community - 1st Designated in 1995) • Mission Springs Water District (Affiliate - 1st Designated in 1997) • Desert Hot Springs High School (nation's 1st Groundwater Guardian Campus Team - 1st Designated in 2000)
• Desert Springs Middle School (Groundwater Guardian Campus Team - 1st Designated in 2004)

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2025 Coachella Valley Regional Urban Water Management Plan 8-32
MSWD regularly publishes the Water Matters newsletter, which features updates on rebate programs, conservation tips, and success stories. Notable editions from June, July, September, and December 2025 have spotlighted initiatives such as smart irrigation controllers and turf replacement incentives. Strategic billboard placements have been used to visually reinforce conservation messaging and direct residents to available rebates and resources.

CV Water Counts
CV Water Counts was formed by the six water suppliers to provide education and awareness of water conversation to Valley residents and businesses. The group was formed in 2008 to reduce water demand, increase water supply, and improve water quality. The CV Water Counts website (https://cvwatercounts.com/) has informative links with educational resources, information on rebates for water saving devices, and upcoming water related events in the area. The CV Water Counts Program uses surveyed data from Coachella Valley residents to guide its water conservation messaging to achieve maximum local impact.

8.9.1.5 Programs to Assess and Manage Distribution System Real Losses MSWD is currently using a wide range of operational policies and practices to ensure the efficient use of its water supply. MSWD conducts monthly monitoring of all water services. In addition, daily inspection of all facilities such as pump stations, wells, reservoirs, valve vaults, etc., is completed. On an annual basis, visual inspection of all easements and pipeline alignments is accomplished.

MSWD conducts water audits and leak detection through various District activities focused on finding and correcting water losses. Field crews visually survey the system as they travel throughout MSWD’s service area on a daily basis. MSWD’s telemetry system, and newly implemented AMI system, also enhances the ability to locate and correct large leaks expeditiously. Leak monitoring is accomplished by all operations field personnel. In the event of a leak, prompt response and investigation are communicated to MSWD by customers and other entities. Leak and other system losses (fire flows) are calculated monthly and recorded in a database.

MSWD demonstrates to all customers how to identify toilet leaks using dye tablets. At public outreach events, MSWD provides the dye tablets at no charge and offers a pamphlet on how to use them. MSWD encourages landlords to make them available to tenants. Finally, the availability of the free tablets is advertised on the MSWD website, stating that customers may come into the District lobby and pick up tablets at no charge. MSWD also offers Indoor Water Conservation kits at no charge to customers. The kits include faucet and kitchen aerators, low-flow shower head, leak detection tablets, and toilet tank, toilet fill cycle divertor. This has been advertised on the MSWD quarterly newsletter as well as the website.

Customers are encouraged to reach out to MSWD and the District mails one out to them at no additional charge.

MSWD works diligently to confirm that the appropriate parties are billed for water loss resulting from damaged fire hydrants, air-vacuums, blow offs, dig-ins, etc. In addition, monthly monitoring of “unaccounted-for” water losses assists in identifying leaks.

To evaluate the effectiveness of these conservation measures, MSWD finance staff will continue to review the data records to confirm that unaccounted-for water remains low and consistent. Following MSWD’s proactive measures, unaccounted-for water losses have reduced to between 3 and 5 percent of total supply over the last five years. Industry guidelines have established a standard rate of water savings based on the repair of a distribution line: a 1-inch crack in a distribution main at 100 pounds per square inch (PSI) can leak 57 gallons per minute. Cost and savings depend on the age of infrastructure for the water system.

MSWD implements programs on leak detection and repair, metering, meter replacement, system flushing, reservoir cleaning and maintenance, valve maintenance and mapping. MSWD continued reviewing distribution system operational procedures and maintenance practices with appropriate field and administrative staff, as detailed in the 2004 Water Conservation Master Plan. These measures will ensure system reliability. The hydrant flushing program will be reviewed for its scope and timing, as well as to determine how much water is lost during flushing.

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2025 Coachella Valley Regional Urban Water Management Plan 8-33
The Desert Willow waterline replacement project included 8,200 linear feet of 8-inch ductile iron pipe which will replace aging 8-inch PVC water lines, and 153 service line replacements. In 2010, MSWD saw approximately 800 service line leak which triggered a service line replacement program. On average MSWD budgeted $100,000-$120,000 annually to replace poly service lines. In 2020, MSWD was seeing approximately 230 service line leaks annually. Over the last decade, MSWD has also implemented seismic valve controls on MSWD’s reservoirs to mitigate water loss during a sizable earthquake event. MSWD also implemented additional water loss tracking at well sites with the installation of flow meters on the pump to waste lines for each well. Most wells will also discharge to drywells or ponds onsite, allowing water to percolate back into the groundwater aquifer in lieu of running off the well sites.

In 2019, MSWD began a system wide AMI program. Since deploying the AMI system, MSWD has seen a substantial decrease in calls to deploy a technician to the property to check the meter for high bill calls or the check reads as MSWD has daily/hourly flow data available through the Neptune 360 dashboard. The system allows MSWD staff to resolve identify issues related to high consumption and resolve them quickly with customers.

8.9.1.6 Water Conservation Program Coordination and Staffing Support MSWD has designated the Programs and Public Affairs Associate responsible for implementing both the conservation master plan as well as monitoring progress in fulfilling DMMs and a State conservation order.

MSWD continues to be involved in water conservation programs and coordinates with the four other water agencies of the Coachella Valley through the CVRWMG and CV Water Counts (www.cvwatercounts.com) regional conservation group.

8.9.1.7 Other Demand Management Measures
MSWD, in concert with the SCE and SCGC, has developed a number of consumption reduction/ conservation program methods for residential, landscape, and commercial/ industrial/institutional customers that include:
• Water Use Surveys/Audits
• Rebates or Giveaways of Plumbing Fixtures and Devices • Rebate Programs including:
o Turf conversion
o High Efficiency Toilets
o Smart Irrigation Controllers
o High Efficiency Washing Machines
• Leak detection and monitoring program
• Evaporative cooler maintenance and assessment program Large landscape irrigation surveys are offered to cost effectively achieve quantifiable water savings. The audits are performed in conjunction with MSWD’s Efficient Landscaping Guidelines, adopted by the District board on December 20, 2004. The guidelines establish effective water efficient landscape requirements for newly installed and rehabilitated landscapes, as well as promote water conservation through climate appropriate plant material and efficient irrigation practices.

Section 0.00.040 of MSWD’s Landscaping Guidelines outlines provisions for landscape water audits. Under the Guidelines, all landscaped areas which exceed 1.0 acre (43,560 square feet), including golf courses, green belts, common areas, multifamily housing, schools, businesses, public works, parks, and cemeteries, may be subject to a landscape irrigation audit at the discretion of MSWD if the District determines that the annual maximum applied water allowance has been exceeded for a minimum of 2 consecutive years. At a minimum, the audit will be conducted by a certified landscape irrigation auditor and shall be in accordance with the California Landscape Irrigation Auditor Handbook, the entire document which is hereby incorporated by reference.

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2025 Coachella Valley Regional Urban Water Management Plan 8-34
The Guidelines also require an irrigation design plan, which includes the installation of separate landscape water meters for all projects except for single-family homes or any project with a landscaped area of less than 2,500 square feet. Automatic control systems shall be required for all irrigation systems and must be able to accommodate all aspects of the design. Mechanical irrigation controllers are prohibited. Plants that require different amounts of water shall be irrigated by separate valves. If one valve is used for a given area, only plants with similar water use shall be used in that area. Anti-drain valves shall be installed in strategic points to prevent low-head drainage. Sprinkler heads shall have application rates appropriate to the plant water use requirements within each control valve circuit. Scheduling aids, including soil moisture sensing devices and ET controllers, are required and recommended, respectively. Emitters shall have applications rates appropriate to the plant water use requirements within each control valve circuit.

Since early 2002, MSWD has been an active participant along with various Coachella Valley area public agencies and private sector organizations to develop a standardized landscape ordinance appropriate to the arid desert climate. The resulting Coachella Valley-Wide Water Efficient Landscape Ordinance (Ordinance No.1302 adopted by CVWD on March 25, 2003) is designed to ensure consistency of landscape water efficiency standards and applies to new and rehabilitated landscapes within the Valley. A key feature of the Ordinance is a 25 percent reduction in landscape water use. This savings is achieved by changing the plant water-use coefficient factor in the formula originally established by AB 325 from 0.8 to 0.6. With this ordinance, new landscaping for any parcel in the Coachella Valley can use no more than 60 percent of the water required for an equivalent sized parcel completely planted in grass.

The City of Desert Hot Springs adopted the District’s Efficient Landscaping Guidelines, and incorporated them into its Ordinance No. 2005-02, which establishes a Water Efficient Landscaping Ordinance within the City’s boundaries. The Ordinance was updated and revised in 2009 and subsequently readopted again by the City. The City’s Ordinance directly follows the District’s Ordinance as applicable to the City’s jurisdiction. In other jurisdictions served by the District, the Riverside County Planning Department and the City of Palm Springs require compliance with the District’s Landscaping Guidelines as a condition of new building permits and/or certificates for occupancy. The current Ordinance No. 17.56 provides updated landscaping standards and guidelines (Desert Hot Springs 2025).

The adoption of MSWD’s Guidelines by the City of Desert Hot Springs, and its consistency with CVWD and City’s water conservation measures, demonstrates MSWD’s commitment to regional collaboration and support for the implementation of large landscape conservation programs.

MSWD’s Water Conservation Master Plan sets forth an initiative to require water efficient practices in landscape plans and irrigation systems of all new or substantially rehabilitated residential and commercial development projects.

In late 2003, MSWD assumed a leadership role in landscape water conservation by partnering with a local builder to develop a series of cost-effective and aesthetically pleasing landscape design options for the builder’s new residential tract. The landscape solutions emphasized the use of native desert and other water-conserving plants, in concert with water efficient irrigation systems. A key goal of this joint venture was to satisfy the maximum applied water allowance budget established by the Coachella Valley-Wide Water Efficient Landscape Ordinance. The landscape designs jointly developed between the District and the builder also reflect several factors important to homeowners, including the style of landscaping, the maintenance demands and water use of a particular design option, and cost. This collaborative effort has resulted in over 30 percent of the homes in Phase 1 of the project featuring water wise landscaping.

MSWD’s leadership and innovation was recognized by the water community when the Association of California Water Agencies (ACWA) presented the District with the Theodore Roosevelt Environmental Award in 2004 for the Lifestyle Landscaping Program.

MSWD was part of the Riverside County Conservation Task Force to create the Riverside County Water Use Efficiency Ordinance. MSWD was an active member of the Task Force to encourage approval and adoption of the ordinance among stakeholders, including County Supervisors, planning agencies, cities, and water districts. To date, a water budget approach has been recommended to allow customers flexibility and does not dictate design implementation. In addition, the Task Force evaluated the use and inclusion of Weather Based Irrigation Controllers (WBIC), enforcement of the Ordinance, support from stakeholders, and emphasis on education as key components of the implementation. The Task Force developed the Model (draft) Ordinance in 2008/09 with compliance by local cities by January 1, 2010.

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MSWD provides resources to assist residents in planning and implementing a desert- friendly landscape.

Residents within the MSWD service area are provided with the steps for water conservation measures in their homes and businesses under the following three categories of land uses: Residential Landscape Makeover, Landscape Planning (in-fill projects which require a building permit), and Landscape Planning (tract projects). The steps for each category are summarized below.

MSWD continues to recommend water-wise and desert-friendly plant materials in homes and businesses.

Desert-friendly landscape styles include the following: Arid, Semi-Arid, and Lush & Efficient. Arid landscapes include slower growing, low water use plant materials and often incorporate decorative rock or mulch into the landscape design. A 2000-square foot, Arid landscape design will use about 29,000 gallons of water per year. Semi-Arid landscapes use plant materials similar to Arid, but may also include a limited turf area for pets and children, if needed.

The Semi-Arid style may include a mix of low and medium water-use plants. A 2000 square foot, Semi-Arid landscape will use about 38,000 gallons of water per year. Lush & Efficient landscapes may incorporate high water use plants or a larger amount of grass. Careful, ongoing maintenance of the irrigation system is a must, as well as shaping the turf areas to conform to sprinkler patterns and avoid runoff. A 2000 square foot, Lush & Efficient landscape will use about 56,000 gallons of water per year. A turf lawn requires heavy maintenance and uses about three times more water than the Semi-Arid landscape. Turf lawns also look out of place, and do not blend in with the desert’s natural beauty. A 2,000 square foot turf landscape will use about 96,000 gallons of water per year.

MSWD also refers its service area residents to the following links for further information:
• The New Mexico Office of the State Engineer 5-step guide to creating a water-wise landscape, called “Xeriscape 101: A Step-by-Step Guide to Creating a Water-Wise Yard.” http://www.ose.state.nm.us/water-info/conservation/xeriscape-101.html. • Gallery of California Heritage Gardens:
http://www.bewaterwise.com/Gardensoft/garden_gallery.aspx • CVWD’s guide, “Lush & Efficient: Gardening in the Coachella Valley,” contains information on topics such as “The Ingredients of a Desert Garden,” “Grouping Plants by Sun and Water Needs,” and “How Much and When to Water.” It also includes a month-to-month gardening calendar for the Coachella Valley and a vast plant database. “Lush & Efficient” can be ordered from CVWD or you can browse the online version at: http://cvwd.org/lush&eff.htm. • The Southern Nevada Water Authority has useful information on general landscape tips at:
http://www.snwa.com/html/ws_landscape_tips.html
• The Alliance for Water Awareness and Conservation (AWAC) provides featured plant updates at:
http://www.hdawac.org/
• The Water Education Water Awareness Committee (WEWAC) provides monthly plant features at:
http://www.usewaterwisely.com/potm.cfm
• MSWD Mission: conservation - Plant Guide provides a custom search tool for water efficient plants and provides calculation on water use and other helpful information for turf replacement and new landscaping, at: http://topratedms.azurewebsites.net/
On its website, MSWD also provides a water budget calculator to assist residents in figuring out what their water allowance is and how the landscape alternatives fit into the allowance. MSWD provides detailed instruction on how to use the calculator, including determining square footage of landscape and annual maximum water allowance for landscape. Based on the calculations, a type of irrigation will be suggested, for example, drip irrigation (non-turf), and the recommended area in which to use spray irrigation.

MSWD then provides a step by step process for selecting the types of plants that will meet the recommended irrigation methods and landscape size. The water use calculator estimates the amount of water that the selected landscape and plant materials will use on an annual basis. Next, MSWD provides recommendations on design and installation of an efficient irrigation system. MSWD encourages public consultation of the District staff as a source of information.

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8.9.2 Implementation of DMMs
The majority of the water conservation programs implemented within MSWD’s service area have been conducted in coordination with the SCGC. MSWD’s best understanding of the nature and extent of these programs over the past five years is reflected in the descriptions above. MSWD has seen reduced water consumption and notification of water waste.

The Mission Springs LivingWise® Program, a school-based energy efficiency education program, is designed to generate immediate and long-term resource savings by bringing interactive, real-world education home to students and their families.

Originally implemented in 2015-2016, MSWD opened the Turf Renate Program back up on May 19, 2021 to incentivize the removal of high water consuming turf grass (and/or significant groundcover plant materials that are similar in water demand) and replace it with desert-friendly, water-efficient landscaping. The program is available to all MSWD customers; including a residential component for single family homes, a commercial component that included for-profit and non-profit businesses and multi-family housing, and a public-properties component included all municipal properties and those considered public, such as parks, medians, government buildings, schools and similar properties. The intent was to replace turf with aesthetically pleasing desert landscaping and reduce water consumption and water runoff as well as increase education about water conservation and desert friendly landscaping. Currently, residents can earn up to $3,000 in rebate per project and commercial property owners can receive up to $10,000 per project.

Each project would receive $2 per square foot of turf removed. Overall, from 2021 to 2025, the Turf Conversion Program issued a total of $87,152 in rebates and supported the conversion of over 40,000 square feet of turf. More than 21 projects were fully funded, with additional applications pending or in progress.

MSWD launched the Toilet Rebate Program on June 2, 2020 to promote water conservation by encouraging the replacement of older, inefficient toilets with high-efficiency models. The program offers financial incentives to residential customers who meet eligibility requirements and submit the necessary documentation. From 2020 to 2025, the program issued over $33,893.78 in rebates to more than 148 recipients. Most applicants were individual homeowners, although some multi-unit properties and commercial entities also participated. The District currently offers up to a $100 rebate for ultra-efficient toilets that use 1.28 gallons per flush (gpf) and up to $150 for premium-efficient toilets that use 1.1 gpf.

Additionally, the District offers a Washer Rebate Program to encourage water and energy conservation through the purchase and installation of a high-efficiency washing machine. The District currently issues rebates up to $150 for the purchase of a high-efficiency washing machine that has a 6 or lower water factor.

As reflected in the 2024-2025 entries, the program issued a total of $2,250 in rebates to 16 recipients, including both homeowners and renters.

MSWD launched the Smart Controller Rebate Program on June 2, 2020, to promote water conservation using smart irrigation technologies. Rebates are currently offered up to $150 for the device and $100 for professional installation for single-family homes, while commercial/HOA properties are offered up to $5,000 for the devices (with MSWD reimbursing 100 percent of the cost up to the first $2,500 and 75 percent of the remaining costs up to $5,000) and up to $750 for professional installation. Between 2023 and 2025, the program issued a total of $8,328.18 in rebates to 21 recipients.

A summary of MSWD conservation DMMs for the years 2020 through 2025 is shown in Table 8-30.

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Table 8-30. Summary of DMM Implementation (2020 – 2025) Conservation Type
Quantity
2020 2021 2022 2023 2024 2025
Residential Turf Replacement (#
completed)
2 5 12 2 1
Residential Turf Replacement ($ Paid) 4,320 8,132 36,460 3,340 34,920 Total Turf Replacement for Residential
and Commercial (Square Feet
Completed)
- - - - - >40,000
Total Turf Replacement for Residential
and Commercial ($ Paid)
- - - - - 87,152
Toilet Rebates (# completed) 7 27 37 39 27 11
Toilet Rebates ($ Paid) 1,100 7,154 9,498 4,800 4,762 6,483 Washer Rebates (# completed) - - - - - 16
Washer Rebates ($ Paid) - - - - - 2,250
Smart Controller Rebates (#
completed)
- - - 3 12 6
Smart Controller Rebates ($ Paid)) - - - 857 900 6,571

8.9.3 Implementation to Achieve Water Use Targets
Through the implementation of MSWD water conservation ordinances and measures, total per-capita MSWD water use significantly dropped from 308 GPCD in 2005 to 189 GPCD in 2020 (a reduction of 38 percent). Many of the water conservation measures already implemented and being implemented by MSWD customers such as turf removal, conversion to drought resistance landscapes, turf replacement, conversion to more efficient irrigation systems and ET-based irrigation controllers, retrofits to toilets and plumbing fixtures, implementation of weather-based irrigation controllers, AMI meters, etc. will have permanent effects on water use (reduction) in the future.

Lower per-capita water use is projected for new housing development (relative to existing housing and development) due to new building codes and landscape ordinances. California’s newly adopted green building code will have a direct impact on home building and water conservation in the State. The new code aims to cut indoor water consumption by at least 20 percent, primarily through more efficient indoor water fixtures. For a three-bedroom house, the saving is estimated to be about 10,000 gallons of water per year, on average.

The California Green Building program also includes outdoor water conservation by reducing the area devoted to high-irrigation lawns and plants, emphasizing natural drought-tolerant plantings, and installing irrigation controls that respond to local weather conditions. This is consistent with MSWD’s 2009 Water Efficient Landscaping Guidelines and the MWELO, which was adopted by the State on July 15, 2015 and was adopted by the City of Desert Hot Springs.

8.10 Plan Adoption, Submittal, and Implementation
This section includes a discussion of MSWD’s process for adopting, submitting, and implementing the RUWMP and MSWD’s WSCP.

8.10.1 Notice of Plan Preparation and Public Hearing
CWC Section 10621(b) requires that water suppliers notify cities and counties within their service area that the UWMP and WSCP are being updated at least 60 days prior to the public hearing. MSWD issued a Notice of Plan Preparation stating that it was updating its plan and would hold a public hearing to consider adoption of the RUWMP and MSWD’s WSCP. MSWD provided written notice to the cities and counties within its service area on March 25, 2026. These entities are identified in Table 8-31, and the notification

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2025 Coachella Valley Regional Urban Water Management Plan 8-38
letters are included in Appendix A of the RUWMP. MSWD provided an additional notice to the cities and counties with the time and date of the public hearing.

Table 8-31. DWR 10-1R Notification to Cities and Counties 60 Day Notice Notice of Public Hearing
City
Desert Hot Springs Yes Yes
Palm Springs Yes Yes
County
Riverside Yes Yes
Prior to the public hearing and in accordance with California Government Code §6066, MSWD provided notice to the public through its website and published announcements of the public hearing in the newspaper on two occasions before the hearing. Copies of the proof of publication are included in Appendix A of the RUWMP.

8.10.2 Public Hearing and Adoption
MSWD held a public hearing on June 3, 2026, located at 66575 Second Street, Desert Hot Springs, CA 92240 to hear public comment and consider adopting this RUWMP and MSWD’s WSCP. As part of the public hearing, MSWD provided information on MSWD’s municipal water demand forecast and supply reliability assessment, as well as an overview of DMMs and the WSCP. The public hearing on the RUWMP and MSWD’s WSCP took place before the adoption of the Plans, which allowed the opportunity to modify the RUWMP and MSWD’s WSCP in response to public input before adoption. After the hearing, the Plans were adopted as prepared or as modified during the hearing.

The City’s adoption resolution for the RUWMP and MSWD’s WSCP is included in Appendix F.

8.10.3 Plan Submittal
MSWD will submit the standard tables electronically to DWR using the DWR Water Use Efficiency Data Portal along with a copy of the final RUWMP. The RUWMP will also be submitted to the California State Library and to the Cities of Desert Hot Springs and Palm Springs and the County of Riverside, which MSWD supplies water to, within 30 days of adoption.

MSWD is not regulated by the California Public Utilities Commission, so notification to the Commission does not apply.

8.10.4 Public Availability
The RUWMP and MSWD’s WSCP will be available on the MSWD website for public viewing within 30 days of filing the plans with DWR. Commencing no later than July 31, 2026, the RUWMP and WSCP will be available for public review at MSWD’s office (see address below) during regular business hours.

Mission Springs Water District
66575 Second Street
Desert Hot Springs, CA 92240
The final documents will also be posted on the CVRWMG website at https://www.cvrwmg.org/uwmp/.

8.10.5 Amending an Adopted UWMP or WSCP
If MSWD identifies the need to amend the adopted RUWMP or MSWD’s WSCP, each of the steps for notification, public hearing, adoption, and submittal will also be followed for the amended RUWMP.

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Chapter 9 Myoma Dunes Mutual Water Company

9.1 Introduction
This chapter describes information specific to Myoma Dunes Mutual Water Company (MDMWC) and its water use efficiency programs. As an urban water supplier, MDMWC is required to prepare a UWMP every five years in response to the requirements of the UWMP Act, CWC Sections 10610 through 10656. This RUWMP serves to meet the UWMP Act requirements for the six participating agencies, and this chapter contains information specific to MDMWC.

Background about the preparation of the RUWMP and the changes in the CWC requirements is presented in Chapter 1 of the RUWMP. The relation of the RUWMP to other planning efforts is described in Chapter 3 of the RUWM.

9.1.1 Chapter Organization
This chapter is organized into the sections recommended by the 2025 UWMP Guidebook prepared by DWR.
• Section 9.1 - Introduction and Lay Description. Provides a discussion on the fundamentals of the UWMP and the required Lay Description of the UWMP. Each UWMP must include a Lay Description of how much water the agency has on a reliable basis, how much it needs for the foreseeable future, what the agency’s strategy is for meeting its water needs, the challenges facing the agency, and any other information necessary to provide a general understanding. • Section 9.2 - Plan Preparation. Provides information on MDMWC’s process for developing the UWMP, including efforts in coordination and outreach.
• Section 9.3 - Service Area Description. Includes maps of the service area, a description of the service area and climate, public water systems, and MDMWC’s organizational structure and history. • Section 9.4 - Water Use Characterization. Describes and quantifies the current and projected urban water uses within MDMWC’s service area.
• Section 9.5 – SB7x7 Baselines, 2020 Targets, and 2025 Reporting. Describes MDMWC’s methods for calculating baseline and 2020 target urban water consumption and reporting 2020 target compliance from the 2020 UWMP.
• Section 9.6 - Water Supply Characterization. Describes and quantifies current and projected sources of urban water available to MDMWC. Includes discussion of potential recycled water uses and supply availability.
• Section 9.7 - Water Service Reliability and Drought Risk Assessment. Describes the reliability of MDMWC’s water supply and projects the reliability for at least the next 20 years. Includes an analysis for normal years, single dry years, and a five-consecutive-year drought. • Section 9.8 - Water Shortage Contingency Plan. Refers to the appendix which provides MDMWC’s staged plan for dealing with water shortages, including a catastrophic supply interruption.
• Section 9.9 - Demand Management Measures. Describes MDMWC’s efforts to promote conservation and to reduce demand through demand management measures. • Section 9.10 - Plan Adoption, Submittal, and Implementation. Describes the steps taken by MDMWC to adopt and submit the UWMP and to make it publicly available. Includes a discussion of MDMWC’s plan to implement the UWMP.
• Appendices. Each Supplier may have information that is best appended to the 2025 UWMP, to support and further clarify information included in the main chapters.

9.1.2 UWMPs in Relation to Other Efforts
The related planning efforts by agencies in the Coachella Valley are described in Chapter 2 of the RUWMP.

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2025 Coachella Valley Regional Urban Water Management Plan 9-2

9.1.3 UWMPs and Grant or Loan Eligibility
MDMWC has prepared and adopted this 2025 UWMP, including compliance with water conservation requirements, and is therefore eligible for State water grants or loans.

9.1.4 Demonstration of Consistency with the Delta Plan for Participants in Covered Actions The participating agencies’ approach to demonstrating reduced reliance on the Delta is described in Chapter 3 of the RUWMP. The analysis of reduced Delta reliance is provided in Appendix B.

9.2 Plan Preparation
This section provides information on MDMWC’s process for developing this RUWMP, including efforts in coordination and outreach.

9.2.1 Plan Preparation
In accordance with the CWC, urban water suppliers must develop a UWMP every five years. An “urban water supplier” is a supplier providing water for municipal purposes to more than 3,000 service connections or supplying 3,000 AFY or more. MDMWC supplies 3,444 AFY to 2,616 municipal service connections and, therefore, surpasses both the volumetric delivery and number of connections thresholds and has prepared a 2025 UWMP.

9.2.2 Basis for Preparing a Plan
MDMWC is a retail public water supplier that meets the definition of an urban water supplier with over 2,600 municipal water service connections in 2025. MDMWC maintains three PWSs with information shown in Table 9-1.

Table 9-1. DWR 2-1R Public Water Systems
Public Water
System Number Public Water System Name
Number of Municipal
Connections 2025
Volume of Water
Supplied 2025 (AF)
3310051 Myoma Dunes Mutual Water Company 2,616 3,939
Total 2,616 3,939

9.2.3 Regional Planning
The regional planning efforts of water supply agencies in the Coachella Valley are described in Chapters 2 and 3 of the RUWMP.

The UWMP Act allows water agencies to prepare their plans either individually or by participation in an area wide, regional, watershed, or basin-wide urban water management plan. MDMWC is participating in the Coachella Valley RUWMP

9.2.4 Individual or Regional Planning and Compliance
The Water Conservation Act of 2009 allows agencies to report progress toward achieving water conservation targets on an individual or regional basis. The agencies have not created a Regional Alliance for the purposes of measuring and reporting water conservation targets.

9.2.5 Fiscal or Calendar Year and Units of Measure
This UWMP reports water use on a calendar year basis, and all volumes are expressed in units of acrefeet (AF), unless otherwise indicated. MDMWC is a retail agency and does not currently sell wholesale water. Table 9-2 shows MDMWC’s supplier identification information used throughout this report.

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2025 Coachella Valley Regional Urban Water Management Plan 9-3
Table 9-2. DWR 2-3 Supplier Identification
Information Supplier Identification
Type of Supplier Supplier is a retail supplier
Fiscal or Calendar Year UWMP Tables are in calendar years Unit of measure used in UWMP AF

9.2.6 Coordination and Outreach
MDMWC does not receive water from a wholesale supplier and meets all its water demands through its own supplies. MDMWC does not currently provide wholesale water to other water agencies.

Outreach and coordination with other local agencies during RUWMP preparation, including notices to the cities and counties within the region, are described in Chapter 1 of the RUWMP.

9.3 Service Area Description
This section includes a description of MDMWC’s service area, climate, and population projections.

9.3.1 General Description
MDMWC is a retail urban water supplier that was established in 1953 to provide potable water service to the community of Bermuda Dunes. MDMWC has grown over the years, seeing housing booms in the mid1980s, late 1990s, and mid-2000s, and it now provides service to approximately 2,450 residents in the Bermuda Dunes area, an unincorporated part of Riverside County, and a portion of La Quinta. MDMWC is a mutual water company that is governed by a four-member Board of Directors.

MDMWC’s service area is approximately 2.6 square miles, generally bounded by Interstate 10 to the north, Washington Street to the west, Fred Waring Drive to the south, and Jefferson Street to the east. There is a small area of homes in the center of the MDMWC service area that is served by CVWD.

The service area is predominantly comprised of single-family residential, with outdoor water use being a major component of this demand category. The service area also includes multi- family residential, commercial, and landscape irrigation demands. Currently, the Bermuda Dunes Country Club (BDCC) and Bermuda Dunes Airport irrigation demands are met with their own private wells, not MDMWC potable water.

The service area is near build-out, with some small pockets of potential development, more so towards the northern and western edges of the service area.

9.3.1.1 Domestic Water Delivery
MDMWC 's water supply source consists solely of groundwater from the Indio Subbasin. Water is extracted via four active groundwater wells with a total nominal production capacity of 10,300 GPM. Two wells were taken out of service since 2020, but total production capacity has been maintained by increasing pumping rates at the four remaining wells. One of the wells pump directly into two respective one-million-gallon reservoirs, which serve as forebays to the distribution system. A capital improvement project is underway to route a well directly to the reservoirs to replace one that was lost. Two booster stations with nominal capacities totaling 7,500 gallons per minute deliver water from the forebays into the distribution system.

Threewells pump directly into the distribution system. Current treatment consists of wellhead chlorine injection. MDMWC serves its customers through a network of pressurized water distribution facilities. The distribution system consists of a single pressure zone that is operated at pressures from approximately 70 to 100 PSI. MDMWC is not interconnected with any other water purveyor and is completely reliant upon its own groundwater well supply and storage.

9.3.2 Service Area Boundary
MDMWC’s service area boundary is shown in Figure 9-1.

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Figure 9-1. MDMWC Service Area Boundary

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9.3.3 Service Area Climate
MDMWC's service area lies within the central Coachella Valley, which experiences an arid climate characterized by low humidity, high summer temperatures, and mild dry winters. The Coachella Valley has a unique climate due to it being situated between two mountain ranges, characterized as arid with yearround warm temperatures and relatively high winds. Precipitation is minimal, typically occurring during the winter months.

Data from climate station in Indio represents climate in the MDMWC service area. Monthly average high temperature reaches 106 degrees and monthly average low temperatures are 39 degrees. Monthly climate data are summarized in Table 9-3 and are shown in Figure 9-2.

Table 9-3. Monthly Average Climate Data (Indio)
Parameter Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Max.

Temperature (F)
72 75 82 87 93 103 106 106 101 90 80 65 88
Average Minimum
Temperature (F)
42 45 52 58 63 70 76 75 69 59 49 39 58
Average Total
Precipitation (in)

0.5 0.6 0.7 0.3 0.1 0.1 0.2 0.1 0.1 0.4 0.2 0.7 3.8
Evapotranspiration,
ETo (in)

2.7 3.6 6.0 7.7 9.2 9.8 9.7 9.1 7.2 5.2 3.3 2.3 75.7
Notes:

Data from California Irrigation Management Information System (CIMIS) Station 200, Indio 2. Data from May 2006 through December 2020
Figure 9-2. Monthly Average Climate Data
A discussion of the potential impacts of climate change on the region is included in Chapter 3 of the RUWMP.

0.5 0.6 0.7 0.3 0.1 0.1 0.2 0.1 0.1 0.4 0.2 0.7

2.7 3.6

6.0 7.7

9.2 9.8 9.7

9.1 7.2

5.2 3.3

2.3 -
20 40
60 80
100
120
-

2.0 4.0

6.0 8.0

10.0 12.0
Temperature (F)
Precipitation and ETo (in)
Precipitation (in) ETo (in) Maximum Air Temperature (F) Minimum Air Temperature (F)

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2025 Coachella Valley Regional Urban Water Management Plan 9-8

9.3.4 Service Area Population and Demographics
This section describes the population and demographics within MDMWC’s service area. MDMWC serves the majority of Bermuda Dunes, which is a Census-Designated Place (CDP) in Riverside County, and a small portion of the City of La Quinta. Current and projected demographics within MDMWC’s service area were developed by SCAG as part of the 2024 Regional Transportation Plan referred to as Connect SoCal (SCAG, 2024). As part of that effort, SCAG performed a detailed evaluation of current and projected future demographics throughout southern California, including the study area for the RUWMP. The Connect SoCal analysis included forecasts for employment, population, and households within cities and unincorporated areas. This demographic information was used to prepare projections of future water demands.

The growth forecasts in SCAG’s Connect SoCal plan included estimates of population, households, and employment through 2050. The 2024 Connect SoCal update projects that the population of Riverside County will increase by approximately 50 percent through 2050. The 2024 update also notes that the region’s population decline between 2019 and 2023 and attributes this decrease to COVID-19 pandemic impacts. Traffic and visitation decline during the pandemic but has recovered to or exceeded pre-pandemic levels in most communities. SCAG notes that the median age is increasing and unpredictable events like the COVID-19 pandemic may cause significant deviations from projected long-term trends.

An important consideration affecting per capita water use in MDMWC is the region’s large seasonal population, which is not counted by the federal census or other demographic data. Due to its mild winter climate and recreational opportunities, Coachella Valley is a popular destination for “snowbirds,” people whose primary residence is outside Coachella Valley but may live there for three to six months during the winter period. In addition, there are people who maintain second homes in Coachella Valley and use them for shorter periods of time throughout the year to participate in various sports, entertainment, and recreational activities. The visitor population also makes use of Coachella Valley’s hotel/motel/time-share resorts as well as mobile home parks. These properties use water year-round for irrigation even when not occupied during the summer months. Per capita water use calculations only consider the permanent population but include all water uses (permanent and seasonal) which leads to higher GPCD estimates.

To estimate service area population both permanent residents and seasonal residents were estimated.

Estimates of the permanent population were made using SCAG housing estimates, housing density, and water meter connections. The water service area shown in Figure 9-1 was intersected with 2019 housing totals from SCAG’s Connect SoCal 2024 growth projection (SCAG, 2024). 2025 household totals were estimated by multiplying the 2019 totals by the growth in residential meter connections from 2019 to 2025.

The permanent population was then estimated by multiplying the 2025 household totals by the number of persons per household for each jurisdiction within MDMWC’s service area using census data. The seasonal population was then estimated by dividing the permanent population totals by the occupancy rate from the Census for each jurisdiction to determine the number of housing units in MDMWC’s service area, and multiplying the total number of housing units by the difference between the average vacancy rate for California and the vacancy rate of each jurisdiction in MDMWC’s service area. This resulting number was used for the seasonal population estimate. Current and projected populations within MDMWC’s service area are presented in Table 9-4.

Table 9-4. DWR 3-1R Current and Projected Population
Population Served 2025 2030 2035 2040 2045 2050
Permanent 8,118 9,828 11,538 11,553 11,567 11,582
Seasonal 1,536 1,818 2,100 2,075 2,050 2,026
Total 9,655 11,646 13,638 13,628 13,618 13,608
A summary of the demographics of the Bermuda Dunes CDP is presented in Table 9-5. Note that these values are not directly representative of MDMWC’s as its water service boundary does not directly coincide with the CDP.

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2025 Coachella Valley Regional Urban Water Management Plan 9-9
Table 9-5. Bermuda Dunes CDP Demographic Data
Age Distribution
Race/Ethnicity
Distribution
Income and
Household Size
Household
Income Distribution
Age Percent Race/Ethnicity Percent Parameter Amount Income Percent 19 years
and under

25.2% White 58.5% Median household
income
$59,860 $24,999 and
under

18.0%
20-34
years

18.0% Black 1.8% Average
household income
$77,829 $25,000-$49,999 23.2%
35-54
years

25.8% Native
American

0.0% Per capita income $33,786 $50,000-$74,999 16.7%
55-64
years

12.6% Asian/Pacific
Islander

3.5% Percent of
Population Below
Poverty Level

12.4% $75,000-$99,999 15.9%
Over 65
years

18.6% Hispanic 33.8% Average
Household Size

2.38 $100,000-
$149,999

13.2%
Other 2.5% $150,000 and
above

13.1%
Notes:

Totals may not equal 100% due to rounding errors.

Reference: American Community Survey 2014-2019 (United States Census Bureau, 2021)

9.3.5 Land Uses within Service Area
Existing land uses within the MDMWC water service area are a mixture of residential, commercial, and open space. Land use jurisdictions with MDMWC’s service area include the City of La Quinta and Riverside County. During its preparation of regional growth projections, SCAG gathered input and coordinated outreach with both jurisdictions. MDMWC has coordinated with these agencies to align its growth projections with local plans.

To support the demand forecast in this RUWMP, MDMWC reached out to each of the cities within the region to request information on additional known development plans or approvals that may not have been included in the 2024 Connect SoCal effort. This information has been incorporated into the RUWMP demand forecast.

9.4 Water Use Characterization
This section describes current and projected urban water system demands within the MDMWC service area. To provide an adequate long-range view of future water needs, this report uses a 25-year planning period from 2025 to 2050. This RUWMP will serve as a source document for future water supply assessments and written supply verifications until the next 5-year UWMP update.

Although the MDMWC service area is substantially built out, there are still many complex factors that impact water use projections such as weather, demand restrictions, housing trends, and landscaping conversions.

9.4.1 Non-Potable Versus Potable Water Use
MDMWC currently serves only potable water to its customers, supplied from the Indio Subbasin. The Indio Subbasin is regionally managed by the six participating agencies in this RUWMP.

9.4.2 Water Use by Sector
Water use for the past five calendar years has been categorized by sector in accordance with the sectors accepted by the Water Use Efficiency (WUE) data online submittal tool. MDMWC’s metering categories generally coincide with the WUE sectors. MDMWC only supplies drinking water from groundwater wells for retail consumption. MDMWC does not supply raw water or recycled water. The water use sectors in the MDMWC service area are summarized in Table 9-6.

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Table 9-6. Water Use Sectors
Sector Description
Single-Family Residential A single-family dwelling unit. A lot with a free-standing building containing one dwelling unit that may include a detached secondary dwelling.

Multi-Family Residential Multiple dwelling units contained within one building or several buildings in a single complex.

Commercial A water user that provides or distributes a product or service.

Landscape Water connections supplying water solely for landscape irrigation. Such landscapes may be associated with multi-family, commercial, industrial, or institutional/governmental sites, but are considered a separate water use sector if the connection is solely for landscape irrigation.

Other Other metered water use that is not assigned to a specific billing category, such as metered construction use, etc.

Losses Non-revenue water is considered the difference between production and measured consumption. Non-revenue water includes distribution system losses as well as authorized non-billed water uses, such as firefighting and flushing.

MDMWC does not sell water to any other agencies or districts and there are no plans to wholesale municipal water in the future. MDMWC does not use its potable water supply for any purpose other than domestic water.

9.4.2.1 Distribution System Losses
Distribution system water losses include real and apparent losses. Real losses are the physical water losses from the water distribution system as well as storage facilities, up to the point of customer consumption.

Apparent losses (also known as “paper losses”) include losses due to water theft, metering inaccuracies, or data errors. Combined, these two components make up total water losses.

MDMWC water losses for the past five years been estimated using the AWWA Method, covered in AWWA M36 – Water Audits and Loss Control Programs, utilizing the AWWA Water Audit Software (WAS). The results are summarized in Table 9-7, and the completed audits are included in Appendix E of the RUWMP.

Table 9-7. DWR 4-4R 12 Month Water Loss Audit Reporting Report Period Start Date
MM YYYY Volume of Water Loss (AFY)
01 2020 415
01 2021 301
01 2022 72
01 2023 27
01 2024 134
CWC Section 10608.34 requires water suppliers to provide data to determine whether the supplier will meet its State Water Board water loss performance standard. MDMWC reports water loss for its distribution system. The real water loss performance standard for MDMWC’s distribution system is 20.5 gallons per connection per day, a 71percent reduction from the state estimated baseline of 70.2 gallons per connection per day. Suppliers will be required to submit a registry of breaks, repairs, and estimates of water loss every three years, beginning in 2029 for the 2025 through 2027 period. Water losses for the supplied data period will be assessed compared to the performance standard. MDMWC’s total water loss currently averages about 45.8 gallons per connection per day, with the most recent reporting year averaging 39.9 gallons of real water loss per connection per day. Table 9-7 shows the City’s progress towards the 2028 Water Loss Standard.

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Table 9-8 DWR Submittal Table 4-6 Retail: Progress Towards 2028 Water Loss Standard
Real Water Loss
State Water Board Standard Most Recent AWWA Water Loss Audit Public
Water
System ID
#
Did the Water
Board
Calculate a
Water Loss
Standard for
this Public
Water
System?
2028 Real
Water Loss
Standard per
Unit per day
Units for
Real Water
Loss
Drop Down
List
Number of
Units
Volume of
Total Real
Loss
Real Water
Loss Per Unit
per Day
CA3310051 Yes 20.5 Gallons per
Connection
per Day
(GPCD)
2,605 117 39.9
Apparent Water Loss
State Water Board Standard Most Recent AWWA Water Loss Audit Public
Water
System ID
#
Reported
in
Submittal
Table 2-1 R
Did the Water
Board
Calculate a
Water Loss
Standard for
this Public
Water
System?
2028
Apparent
Water Loss
Standard per
Unit per Day
Units for
Apparent
Water Loss
Number of
Connections
Volume of
Total
Apparent
Loss
Apparent
Water Loss
Per Unit per
Day
CA3310051 Yes 42.2 Gallons per
Connection
per Day
(GPCD)
2,605 17.1 5.9

9.4.2.2 Summary of Current Uses
Water use for the past five years is shown in Table 9-8.

Table 9-9. Actual Demands for Water (AFY)
Use Type
Level of Treatment
When Delivered 2020 2021 2022 2023 2024 2025
Single Family Potable 2,474 2,553 2,381 2,284 2,378 2,396 Multi-Family Potable 317 631 591 549 551 598
Commercial Potable 374 89 94 208 233 468
Landscape Potable 274 261 230 211 250 229
Other Potable 132 123 99 56 85 58
Losses Potable 415 301 72 27 134 190
Total Potable 3,987 3,958 3,466 3,335 3,631 3,939
Total 3,987 3,958 3,466 3,335 3,631 3,939

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2025 Coachella Valley Regional Urban Water Management Plan 9-12

9.4.3 Demand Forecast
Local agencies are currently participating in the update of the Indio Subbasin Alternate Plan being prepared to meet requirements of SGMA. The participating agencies coordinated efforts with demand projections being prepared for the Indio Subbasin Alternative Plan and the Mission Creek Subbasin Alternative Plan.

The demand projection approach included the following steps:

1. The projections were based on SCAG’s regional growth forecast prepared as part of their Regional Transportation Plan, Connect SoCal 2024. SCAG gathered input from cities and counties throughout Southern California about expected growth and development for the next 25 years and incorporated the land use designations in each jurisdiction’s General Plan. The SCAG analysis includes estimates of population, households, and employment in each Traffic Analysis Zone (TAZ) in their study area (SCAG 2024).

2. Additional analysis of vacancy rates was performed to estimated baseline and projected housing units for the study area, including housing units used by seasonal residents and other part-time uses.

3. Baseline and projected estimates of employment were used to drive future growth in CII demands

4. Five years of customer billing data (2020 to 2024) were used to develop unit demand factors specific to MDMWC. These factors have units of gallons per housing unit for residential and landscape uses and gallons per employee for CII uses.

5. Water losses were estimated using water loss audits from the last five years (2020 to 2024).

6. Demands were adjusted for the following types of conservation savings:
• Indoor passive conservation savings from the natural replacement of indoor devices and plumbing fixture
• Outdoor water use reduction at new developments from the implementation of The County of Riverside’s Landscape Ordinance
• Outdoor conservation savings from the implementation of the 2015 Model Water Efficiency Landscape Ordinance (MWELO) for future developments.
• Outdoor conservation savings from turf replacement due to local rebate programs • Outdoor conservation savings from the implementation of the State of California’s nonfunctional turf ban Projected municipal demands for MDMWC’s service are shown in Table 9-10.

Table 9-10. DWR 4-2R Projected Demands for Water (AFY)
-
Use Type
Additional
Description
Projected Water Use
2030 2035 2040 2045 2050
Single Family Potable 2,507 2,617 2,598 2,587 2,575
Multi-Family Potable 736 949 946 946 945
Commercial/Industrial/Institutional Potable 204 208 221 235 248 Landscape Potable 191 149 144 139 135
Other Potable 99 99 99 99 99
Losses Potable 202 219 220 221 222
Subtotal Potable 3,883 4,165 4,152 4,148 4,144
Total 3,883 4,165 4,152 4,148 4,144

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2025 Coachella Valley Regional Urban Water Management Plan 9-13

9.4.3.1 Conservation Savings
Demand projections prepared for this RUWMP considered anticipated future water savings (summarized in Step 6 above). The analysis included indoor savings related to toilets, showerheads, dishwashers, clothes washers, faucets, and urinals (categorized as indoor water use) as well as outdoor water use. Indoor conservation is mainly a result of government mandated water efficiency requirements for fixtures, defined as “passive savings”. The model considers these mandates and the average useful life and replacement rates for each type of fixture based on standard industry estimates and plumbing fixture saturation studies.

It assumes that all new construction complies with the plumbing codes in effect at that time and that when a device is replaced, the new device is also in compliance with the current plumbing codes. Estimated frequency of use for each type of fixture was based on a Conservation and Efficiency Potential study by the Pacific Institute were multiplied by the number of housing units to produce the total indoor passive conservation savings (Pacific Institute, 2014).Anticipated outdoor water use savings were based on the implementation of the California MWELO which is the standard for outdoor water conservation for the state and the basis for the County of Riverside’s Ordinance Number 859, Water Efficient Landscape Requirements. The resulting water savings from the MWELO are estimated using an ETAF which adjusts the reference ET for plant requirements and irrigation efficiency. Additional outdoor water use savings are anticipated due to the non-functional turf ban, smart irrigation controllers, and turf replacement. Assembly Bill (AB) 1572, passed in 2023, banned the use of potable water to irrigate non-functional turf (i.e. ornamental grass not used for recreation). The ban will go into effect in phases beginning in 2027 and will affect commercial, institutional, and homeowner association owned properties. MDWMC has rebates in place to encourage water conservation through turf replacement. These savings are not considered passive are they are implemented through incentives under conservation programs.

The anticipated passive savings due to these measures are summarized in Table 9-11. These savings have been incorporated into the demand projections presented in Table 9-10.

Table 9-11. DWR 4-4R Passive Water Savings Projections (AFY) -
Passive Savings
Projected Water Savings (AFY)
2030 2035 2040 2045 2050
Device Replacement 88 158 180 193 206
MWELO 83 154 159 164 169
Non-Functional Turf Ban 55 74 74 74 74
Total Passive Savings 226 385 413 431 449

9.4.3.2 Total Gross Water Use
Total projected gross water use, including both potable and recycled use, is shown in Table 9-12.

Table 9-12. DWR 4-3R Total Gross Water Use (AFY)
- 2025 2030 2035 2040 2045 2050
Potable and Raw Water (AFY)
From DWR Table 4-1R and 4-2R
3,883 4,165 4,152 4,148 4,144 3,883
Recycled Water Demand (AFY)
From DWR Table 6-4R
0 0 0 0 0 0
Total Water Use 3,883 4,165 4,152 4,148 4,144 3,883
Note: Recycled water demands are discussed in Section 8.6.

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2025 Coachella Valley Regional Urban Water Management Plan 9-14

9.4.4 Water Use for Lower Income Households
The SCAG RHNA Housing Need by Income Category is used to develop projections of lower income housing units in future years. Lower income households are those with less than 80 percent of the area’s median household income, adjusted for family size. The City will strive to meet their new construction goals of the RHNA. The demand for lower income households is included in the water use projections in Table 9-9. The connections for lower income households were estimated to be approximately 40 percent of the total residential connections in the service area. MDMWC estimates that approximately 40 percent of its demand is delivered to lower income households. This percentage is expected to remain approximately constant for future years.

9.4.5 Climate Change Considerations
The agencies participating in the Regional UWMP have prepared an assessment of potential climate change impacts on demand. This information is presented in Chapter 3 of the RUWMP.

9.5 SB7x7 Baselines, 2020 Targets, and 2025 Reporting
With the adoption of the Water Conservation Act of 2009 (SB X7-7), the State set a goal of reducing urban water use by 20 percent by the year 2020. Each retail urban water supplier was required to determine its water use during a baseline period and establish water use targets for the years 2015 and 2020 in order to help the State achieve the 20 percent reduction.

In the 2025 UWMP, water agencies must demonstrate compliance with their established water use target for the year 2020. The SBx7-7 Verification Forms were presented in the 2020 UWMP, Appendix E. This section also demonstrates that MDMWC achieved its 2020 water use target in 2020.

9.5.1 SB7x7 Baselines and 2020 Targets
SBx7-7 required urban water suppliers to establish a per capita water use target for 2020 to be calculated by using one of four methods. MDMWC selected to use Method 1, which was calculated based on the selected 10-year baseline of 859 GPCD. Using that criteria, MDMWC’s selected 2020 target was 685 GPCD.

9.5.2 Calculating Population and Gross Water Use
To assess compliance with the 2020 water use target in GPCD, MDMWC’s service area population and gross water use were compared to the SBx7-7 target.

The gross water used was determined from production records. One hundred percent of MDMWC’s supply entering the distribution system is provided by groundwater wells owned and operated by MDMWC. All groundwater wells pump from the Indio Subbasin. As MDMWC does not utilize recycled water, does not place water into long term storage, does not convey water to another urban supplier, does not deliver water for agricultural uses, and does not deliver water to industrial users, no deductions to gross water use were made for these sources. MDMWC’s water use was calculated as 497 GPCD for year 2020.

9.5.3 Supplier Met 2020 Target in 2020
MDMWC met their 2020 target as reflected in Table 9-13 below, which includes their 2020 target and 2020 Actual GPCD. MDMWC was not a part of a merger or consolidation and was not a part of an SBx7-7 Regional Alliance target.

Table 9-13 SB X7-7 2020 Target Progress
Was Supplier part of a
merger or consolidation
since 2020?
Regional Alliance
Target or
Individual Target?
2020
Target
Actual 2020
GPCD
Did Supplier Achieve
Targeted Reduction for
2020?
No Individual Target 685 497 Yes

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2025 Coachella Valley Regional Urban Water Management Plan 9-15

9.6 Water Supply Characterization
This section describes and quantifies the sources of water available to MDMWC.

9.6.1 Water Supply Analysis Overview
Within the MDMWC service area, the only direct water source employed for potable urban water use is local groundwater from MDMWC wells. This groundwater is pumped from the Indio Subbasin of the Coachella Valley Groundwater Basin, which is continuously replenished by DWA and CVWD with imported water. The Indio Subbasin serves as an expansive conjunctive use resource that can ensure a sufficient and sustainable water supply to serve existing uses and projected growth during normal, single‐dry and multiple‐dry years over an extended planning horizon.

9.6.2 Supply Characterization
This discussion includes the types of water supply considered by DWR. As shown in Table 9-14, MDMWC serves 100 percent of customer demands with groundwater.

Table 9-14. Urban Water Supply 2020-2024 (AFY)
Water Supply Additional Description 2020 2021 2022 2023 2024 Groundwater Indio Subbasin 3,987 3,958 3,466 3,335 3,631 Total 3,987 3,958 3,466 3,335 3,631

9.6.2.1 Purchased or Imported Water
MDMWC does not independently purchase, exchange, or import water from any source outside of Coachella Valley. As described in Chapter 3 of the RUWMP, imported water is used on a regional basis for groundwater replenishment.

9.6.2.2 Groundwater
Groundwater is the sole source of supply for MDMWC. MDMWC supplies are primarily from the eastern end of the Indio Subbasin, which is a common groundwater source shared by CVWD, CWA, DWA, Indio, MDMWC, and numerous private groundwater producers. Because the Indio Subbasin is a non-adjudicated basin, MDMWC operates under overlying groundwater rights and pumps supplies from the aquifer as needed to meet demands within its service area. More information about the Indio Subbasin is presented in Chapter 3 of the RUWMP.

MDMWC’s historical groundwater pumping is summarized in Table 9-15.

Table 9-15. DWR 6-1R Groundwater Volume Pumped (AFY)
Groundwater Type Location or Basin Name 2021 2022 2023 2024 2025 Alluvial Basin Indio Subbasin 3,958 3,466 3,335 3,631 3,939 Total 3,958 3,466 3,335 3,631 3,939
Groundwater Quality
MDMWC’s water quality meets MCLs for monitored primary, secondary, or microbial contaminants. All water provided by MDMWC meets all U.S. EPA and SWRCB guidelines (MDMWC 2025a).

In October 2024, the SWRCB approved the country’s first drinking water standard for hexavalent chromium (chromium-6) at 10 μg/L. In November 2025, MDMWC distributed a notice notifying customers of a chromium-6 sample above California’s new drinking water standard. While water systems of MDMWC’s size are not considered in violation of the MCL until after October 1, 2027, the District is working closely with the SWRCB to address the exceedance. MDMWC has completed a chromium-6 Compliance Plan,

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2025 Coachella Valley Regional Urban Water Management Plan 9-16
conducted a water system evaluation, performed treatment and pilot testing, and are preparing engineering design and permitting for treatment improvements (MDMWC 2025b).

9.6.2.3 Surface Water
MDMWC does not use, or plan to use, self-supplied surface water as part of its water supply.

9.6.2.4 Stormwater
MDMWC does not currently use stormwater as a water supply. Stormwater in the Coachella Valley typically percolates into the groundwater basin or is conveyed to the CVSC; however, there is some stormwater catchment at the Whitewater River GRF and other smaller recharge basins. Due to the extremely limited amount of rainfall and runoff in the region, stormwater is not currently regarded as a high priority potential water source.

9.6.2.5 Wastewater and Recycled Water
MDMWC does not own or operate any recycled water infrastructure and does not produce, treat, or distribute recycled water. The District’s services are limited to potable water supply.

Although wastewater collection and treatment services are not directly provided by MDMWC, these services do exist in the MDMWC service area as provided by CVWD. Approximately one-third of MDMWC customers receive wastewater collection service from CVWD. The remaining properties rely on individual septic systems.

Wastewater collected by CVWD within the MDMWC service area is conveyed to CVWD’s WRP-7, located in north Indio, approximately three miles north of MDMWC’s boundary. WRP-7 provides secondary treatment and produces recycled water that is used within CVWD’s recycled water system. However, MDMWC does not receive or distribute recycled water from this facility, and wastewater flows originating within MDMWC’s service area are not separately metered prior to treatment; therefore, flow volumes are estimated.

MDMWC does not provide wastewater collection or wastewater treatment services, does not operate any wastewater treatment plants, and does not have plans at this time to develop recycled water infrastructure.

Irrigation demands within the service area, including the Bermuda Dunes Country Club and Bermuda Dunes Airport, are currently met through private groundwater wells and/or other non-recycled water supplies.

There are no current plans to convert these uses to recycled water service.

Wastewater collection within the MDMWC service area is summarized in Table 9-16.

Table 9-16. DWR 6-2R Wastewater Collected within Service Area in 2025 Wastewater Collection Recipient of Collected Wastewater Name of
Wastewater
Collection
Agency
Wastewater
Volume
Metered or
Estimated
Wastewater
Volume
Collected
from UWMP
Service Area
in 2025 (AFY)
Name of
Wastewater
Agency
Receiving
Collected
Wastewater
Wastewater
Treatment
Plant Name
Wastewater
Treatment
Plant
Located
within
UWMP Area
WWTP
Operation
Contracted
to a Third
Party
CVWD Estimated 591 CVWD WRP-7 No No
Total 591
Note: For MDMWC customers on CVWD sewer, "Volume of Wastewater Collected from UWMP Service Area" was estimated assuming 24 percent of metered water consumption becomes wastewater using an average of expected ranges of indoor versus outdoor use for the Bermuda Dunes area.

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2025 Coachella Valley Regional Urban Water Management Plan 9-17

9.6.2.6 Desalinated Water Opportunities
Developing new desalinated water sources for MDMWC is currently impractical for several reasons including the lack of a saline water source; the distance, costs, and lack of infrastructure for desalinated ocean water; and brine management issues.

9.6.2.7 Water Exchanges and Transfers
MDMWC does not currently participate in direct water exchanges or transfers. Exchanges involving SWP supplies and Colorado River water for groundwater basin replenishment are managed regionally by CVWD and DWA.

While MDMWC does not have any existing emergency interties in operation, MDMWC is currently developing an interconnection with Indio to enhance system reliability and emergency supply capability. As of late 2025, the intertie project has been completed through design and is out to bid for construction. Upon completion, the intertie will provide operational flexibility and emergency supply redundancy between the two agencies.

Opportunities may also exist for future interconnections with CVWD based on the proximity of existing distribution infrastructure; however, no additional intertie projects are currently planned.

9.6.2.8 Future Water Projects
MDMWC’s service area is substantially built out, and recent demand reductions due to drought conditions and demand hardening have further stabilized water use. Accordingly, MDMWC does not have plans for new or substantial water supply projects within the urban water management planning horizon beyond routine capital improvement projects for system maintenance and reliability.

9.6.2.9 Summary of Existing and Planned Sources of Water MDMWC’s existing water supply volumes are presented in Table 9-17. These figures are based on MDMWC production records for 2020. One hundred percent of the supply was from the Indio Subbasin.

Planned water supply volumes are presented in Table 9-18. As the Indio Subbasin is anticipated to be reasonably reliable for the urban water management planning horizon, the projected water supply is assumed to be equivalent to the projected water demand.

Table 9-17. DWR 6-8R Actual Water Supplies
-
Water Supply Additional Detail on Water Supply
2025
Actual Volume
(AFY) Water Quality
Groundwater Indio Subbasin 3,444 Potable
Total 3,444
Table 9-18. DWR 6-9 R Projected Water Supplies (AFY)
Water Supply Additional Detail on Water Supply 2030 2035 2040 2045 2050 Groundwater Indio Subbasin 3,883 4,165 4,152 4,148 4,144 Total 3,883 4,165 4,152 4,148 4,144

9.6.2.10 Special Conditions
Although groundwater is a relatively resilient water supply with respect to climate change, potential effects of a hotter and drier climate could increase water demand within the Coachella Valley. A discussion of potential climate change impacts on MDMWC’s supplies is provided in Chapter 3 of the RUWMP.

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2025 Coachella Valley Regional Urban Water Management Plan 9-18

9.6.3 Energy Use
MDMWC has compiled data to document the energy used for water management operations. MDMWC used the Total Utility Approach to estimate the energy intensity of its water management operations. The data are summarized in Table 9-19.

Table 9-19. DWR O-1B Energy Intensity Reporting
Table O-1B: Recommended Energy Reporting - Total Utility Approach Enter Start Date for Reporting Period 1/1/2025
End Date 12/30/25 Urban Water Supplier Operational Control Is upstream embedded in the values reported? No Sum of All Water Management
Processes
Non-Consequential
Hydropower
Water Volume Units Used AF Total Utility Hydropower Net Utility Volume of Water Entering Process (volume unit) 3,444 0 3,444 Energy Consumed (kWh) 2,472,200 0 2,472,200
Energy Intensity (kWh/volume) 717.8 0.0 717.8
Quantity of Self-Generated Renewable Energy
0 kWh
Data Quality (Estimate, Metered Data, Combination of Estimates and Metered Data) Combination of Estimates and Metered Data
Data Quality Narrative
Energy use data was obtained from electricity consumption records maintained by the agency.

Narrative
The agency uses energy for groundwater production from wells, pumping at booster stations from lower pressure zones to higher pressure zones, and treatment processes.

9.7 Water Service Reliability and Drought Risk Assessment The UWMP Act requires urban water suppliers to assess water supply reliability that compares total projected water use with the expected water supply over the next 20-25 years in five-year increments, including a single dry year and multiple dry years. This section presents the reliability assessment for MDMWC’s service area.

9.7.1 Reliability Overview
Coachella Valley water suppliers are achieving success in sustainable groundwater management and as stewards of local water resources. The regional groundwater supply has historically been able to meet demands during both normal and dry periods. Though increased environmental regulations, competition for water supplies, and recurrent drought conditions have reduced the reliability of imported water, groundwater replenishment has reversed past overdraft conditions.

The “normal year” represents the average water supply conditions and availability to MDMWC. This RUWMP uses the long-term average supply metrics to represent normal year conditions.

The “single dry year” represents the lowest water supply available to MDMWC. Though MDMWC’s groundwater in storage is not constrained in dry years, this RUWMP uses 2021 for the single dry year due to its combination of low precipitation and peak demand. MDMWC’s water use data from the last 20 years was evaluated to understand demand response among its customer base. For MDMWC, the single dry year demand represents 114 percent of normal conditions.

The “multiple dry years” represents the lowest average water supply available to MDMWC for a consecutive multi-year period (five years or more). This is generally considered to be the lowest average surface runoff

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2025 Coachella Valley Regional Urban Water Management Plan 9-19
for a consecutive multiple year period for a watershed since 1903. This RUWMP uses 2020 through 2024 as the multiple dry year period. Although this period is not the driest consecutive five-year period on record, it represents a more accurate demand response to drought conditions due to conservation programs implemented in recent years by MDMWC. For MDMWC, the multiple dry year demand increases by three percent year-over-year to 115 percent of normal conditions.

The available water supplies and demands for MDMWC’s service area were analyzed to understand the region’s ability to satisfy demands during three scenarios: an average water year, single-dry year, and multiple-dry years. The years and availability are summarized in Table 9-20.

Table 9-20. DWR 7-1R Basis of Water Year Data
-
Year Type Base Year
Available Supply if Year Type Repeats
Percent of Average Supply
Average Year 2015-2024 100%
Single-Dry Year 2021 114%
Consecutive Dry Years 1st Year 2020 103%
Consecutive Dry Years 2nd Year 2021 106%
Consecutive Dry Years 3rd Year 2022 109%
Consecutive Dry Years 4th Year 2023 112%
Consecutive Dry Years 5th Year 2024 115%
MDMWC’s groundwater supply has historically been able to meet demands during dry periods.

9.7.2 Water Service Reliability Assessment
The reliability of the groundwater supply is dependent on reliable sources to replenish water extracted from the groundwater basin. To ensure a safe and reliable supply, regional water suppliers collaborate to manage groundwater via the Indio Subbasin Alternative Plan and Mission Creek Subbasin Alternative Plan.

The Coachella Valley Groundwater Basin is un-adjudicated and has sufficient storage to meet the projected pumping conditions on the basin for the next 25 years, and beyond. Thus, issues related to reliability of supply and vulnerability to seasonal and climatic changes do not significantly affect the reliability of the basin. All of the water currently and historically consumed by MDMWC comes from the basin.

Because groundwater supplies have not been vulnerable to seasonal or climatic conditions, the supplies are limited only by available MDMWC pumping capacity. The water quality of MDMWC water supply, consisting entirely of pumped groundwater, meets applicable regulatory criteria.

The Indio Subbasin groundwater in storage will be used in dry years to support potential differences between demands and supply. The groundwater basin has a capacity of approximately 29.8 MAF. It is capable of meeting the water demands of regional agencies for extended periods during normal, single‐dry and multiple‐dry year conditions.

9.7.2.1 Normal Year
The expected water supply availability for an average (normal) year is provided in Table 9-21. This analysis does not include WSCP use reduction in a normal year. The available supply is assumed equivalent to the projected demands since the basin is non-adjudicated and based on the expected reliability of the groundwater basin. The supply and demand comparison for the normal year results in no shortages.

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2025 Coachella Valley Regional Urban Water Management Plan 9-20
Table 9-21. DWR 7-2R Normal Year Supply and Demand Comparison - 2030 2035 2040 2045 2050
Supply Totals (AFY)
From DWR Table 6-9R 3,883 4,165 4,152 4,148 4,144
Demand Totals (AFY)
From DWR Table 4-3R 3,883 4,165 4,152 4,148 4,144
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 0 0 0 0 0
Revised Surplus/(Shortfall) 0 0 0 0 0
Note: The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability. During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here.

9.7.2.1 Single Dry Year
The single dry year represents a “worst-case” scenario for demand response, jumping to 114 percent of normal conditions in a single year. Due to the reliability of the region’s groundwater basin, water supply availability during a single-dry year scenario was assumed to be similar to the average year scenario.

Supply will consist of pumped groundwater. Reliability during a single dry year is shown in Table 9-22.

Demand is assumed to increase during a single-dry year due to increased irrigation needs. This analysis does not include WSCP use reduction in a single dry year. Urban water supplies during the single dry year are fully reliable as groundwater in storage in the Indio Subbasin is available to serve increased demand.

Thus, the supply and demand comparison for the single dry year results in no shortages.

Table 9-22. DWR 7-3R Single Dry Year Supply and Demand Comparison - 2030 2035 2040 2045 2050
Supply Totals (AFY) 4,436 4,758 4,743 4,739 4,735
Demand Totals (AFY) 4,436 4,758 4,743 4,739 4,735
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 0 0 0 0 0
Revised Surplus/(Shortfall) 0 0 0 0 0
Note: The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability. During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here.

9.7.2.2 Multiple Dry Years
Reliability during a multiple-dry year scenario was assumed to be similar to the average year scenario for reasons discussed previously. Demand is expected to increase during multiple dry year periods due to increased irrigation needs. It is assumed that MDMWC’s WSCP would be implemented in the second year of a multiple-dry-year period, reducing some of the increased demand. This reliability forecast conservatively assumes that the WSCP will reduce water use by seven percent in the second through fifth years of a multiple year drought. Table 9-23 summarizes the multiple-dry year supply and demand scenario.

The multiple dry year urban water supply reliability is 100 percent, as groundwater in storage in Indio Basin will be used to supplement increased demand. In five consecutive dry year conditions, there are no shortages.

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2025 Coachella Valley Regional Urban Water Management Plan 9-21
Table 9-23. DWR 7-4R Multiple Dry Years Supply and Demand Comparison - - 2025 2030 2035 2040 2045
First Year
Supply Totals (AFY) 3,999 4,290 4,276 4,273 4,269
Demand Totals (AFY) 3,999 4,290 4,276 4,273 4,269
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 0 0 0 0 0
Revised Surplus/(Shortfall) 0 0 0 0 0
Second Year
Supply Totals (AFY) 4,116 4,415 4,401 4,397 4,393
Demand Totals (AFY) 4,116 4,415 4,401 4,397 4,393
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 288 308 307 307 307
Revised Surplus/(Shortfall)1 0 0 0 0 0
Third Year
Supply Totals (AFY) 4,232 4,540 4,525 4,521 4,517
Demand Totals (AFY) 4,232 4,540 4,525 4,521 4,517
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 296 317 316 316 316
Revised Surplus/(Shortfall)1 0 0 0 0 0
Fourth Year
Supply Totals (AFY) 4,349 4,665 4,650 4,646 4,642
Demand Totals (AFY) 4,349 4,665 4,650 4,646 4,642
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 304 326 325 325 324
Revised Surplus/(Shortfall)1 0 0 0 0 0
Fifth Year
Supply Totals (AFY) 4,465 4,790 4,775 4,770 4,766
Demand Totals (AFY) 4,465 4,790 4,775 4,770 4,766
Surplus/(Shortfall) 0 0 0 0 0
WSCP Use Reduction 312 335 334 333 333
Revised Surplus/(Shortfall)1 0 0 0 0 0
1The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability.

During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here. Conversely, any water use reduction as a result of WSCP implementation will result in reduced groundwater production and groundwater will remain in storage for future use.

Historically, the groundwater basin has shown signs of overdraft, which could impact reliability in the long term. The implementation of ongoing groundwater management efforts (see Chapter 3 of the RUWMP) seeks to ensure groundwater levels are maintained to mitigate potential overdraft conditions of the basin.

MDMWC also continues to implement DMMs and other conservation programs to decrease the annual volume of water consumed.

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2025 Coachella Valley Regional Urban Water Management Plan 9-22

9.7.3 Drought Risk Assessment
The five-year Drought Risk Assessment (DRA) is intended to evaluate current water supply availability by simulating demand and supply for the next five years under multiple dry year conditions Demands are expected to increase from current 2025 demands based on the assumptions of demand increase during multi-dry year periods. For MDMWC, the multiple dry year demand increases by three percent year-over-year to 115 percent of normal conditions. It is expected that conservation messaging and programs will prevent any significant increase in demands by existing customers due to dry conditions. The groundwater supply is reliable for a five-year dry period as the volume in storage can be drawn down during a dry period.

The data and methodologies used to identify a potential shortage are described in the WSCP. Based on the reliability analysis in Section 9.7, the supply of groundwater is fully reliable under a five-year drought, including consideration of historic droughts in the Coachella Valley and potential impacts of climate change.

The results of the DRA, including estimated savings from the implementation of the WSCP, are summarized in Table 9-24. Any water shortage can be mitigated through use of groundwater in storage and demand reduction via WSCP implementation.

Table 9-24. DWR 7-5 Five-Year Drought Risk Assessment
2026 Gross Water Use (AFY) 4,058
Total Supplies (AFY) 4,058
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit)
Revised Surplus/(Shortfall) 0
Resulting Percent Use Reduction from WSCP Action 0%
2027 Gross Water Use (AFY) 4,176
Total Supplies (AFY) 4,176
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 273
Revised (Surplus/Shortfall)
1 0
Resulting Percent Use Reduction from WSCP Action 7%
2028 Gross Water Use (AFY) 4,294
Total Supplies (AFY) 4,294
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 280
Revised (Surplus/Shortfall)
1 0
Resulting Percent Use Reduction from WSCP Action 7%

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 9-23
2029 Gross Water Use (AFY) 4,412
Total Supplies (AFY) 4,412
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 288
Revised (Surplus/Shortfall)
1 0
Resulting Percent Use Reduction from WSCP Action 7%
2030 Gross Water Use (AFY) 4,530
Total Supplies (AFY) 4,530
Surplus/(Shortfall) without WSCP Action 0
Planned WSCP Actions (Use Reduction and Supply Augmentation) WSCP (Supply Augmentation Benefit)
WSCP (Use Reduction Savings Benefit) 296
Revised (Surplus/Shortfall)
1 0
Resulting Percent Use Reduction from WSCP Action 7%
1The RUWMP participating agencies collaborate on groundwater management plans for long-term sustainability.

During a normal year, single-dry year, or five-dry year period, the agencies could produce additional groundwater if demands exceeded the estimates shown here. Conversely, any water use reduction as a result of WSCP implementation will result in reduced groundwater production and groundwater will remain in storage for future use.

9.8 Water Shortage Contingency Plan
Water shortage contingency planning is a program that is developed in the form of a Water Shortage Contingency Plan (WSCP) that is used to help manage droughts and other short-term water shortages or supply interruptions by temporarily reducing demand and finding alternate water sources to temporarily increase supply utilizing methods that are within the authority of the water agency. As droughts are part of the normal water cycle in California, this type of planning is a necessity.

MDMWC has developed a WSCP to help manage potential future water shortages. The WSCP is being adopted separately from the RUWMP and may be modified as needed based on changing conditions. The WSCP is included in Appendix C of this RUWMP.

9.9 Demand Management Measures
This section describes MDMWC’s water conservation goals, existing and proposed conservation programs, and efforts to promote conservation and reduce demand in order to meet its urban water use reduction targets. Setting goals and selecting appropriate water conservation measures is a continuous process that evolves based upon legislation, technologies, and past measure effectiveness.

9.9.1 Existing Demand Management Measures for Retail
MDMWC aims to reduce unnecessary water usage and eliminate wasteful practices. MDMWC plans to achieve these goals through a combination of promotion, public outreach, voluntary, and mandatory measures. DMMs refer to policies, programs, rules, regulation and ordinances, and the use of devices, equipment, and facilities that, over the long term, have been generally justified and accepted by the industry as providing a reliable reduction in water demand. MDMWC also employs a water conservation staff for support.

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 9-24

9.9.1.1 Water Waste Prevention Ordinances
There are a series of SWRCB ordinances regarding the waste of water that remain in effect at all times.

Depending on State mandates for water use reduction and depending on the stage of the WSCP, additional water waste prevention ordinances may be enacted.

9.9.1.2 Metering
Except for fire protection services, all customer service connections are fully metered. Most multi-family units are served by one meter. A few multi-family units are metered separately at the owner’s request.

MDMWC is also in the process of implementing a meter replacement program and converting to AMI. This AMI conversion will provide more accurate meter data and faster detection of leaks, resulting in reduced water losses.

9.9.1.3 Conservation Pricing
MDMWC has adopted a four-tier budget-based rate structure, which is a conservation rate structure that remains active at all times. Tiers are based upon customer water budgets. There is a fixed meter charge dependent on meter size. As the customer uses water in excess of their budget, the tier increases with a progressively increasing unit water cost.

9.9.1.4 Public Education and Outreach
MDMWC is a partner and contributing member of CV Water Counts (http://cvwatercounts.com), a local program consisting of the six water agencies in the Coachella Valley (see description below). MDMWC provides links on its website (http://www.myomawater.com/) to CV Water Counts as well as Save Our Water (http://saveourwater.com), a statewide conservation program that aims to make water conservation a daily habit through partnering with local water agencies, social marketing, and event sponsorships.

MDMWC also reaches its customers by providing water conservation pamphlets at the MDMWC office, as well as by periodically distributing water conservation related materials through customer water bills.

In addition, MDMWC provides a rebate incentive of $3 per square foot for residential projects and $2 per square foot for HOA’s/commercial properties with pre-approval.

CV Water Counts
CV Water Counts was formed by the six water suppliers to provide education and awareness of water conversation to Valley residents and businesses. The group was formed in 2008 to reduce water demand, increase water supply, and improve water quality. The CV Water Counts website (https://cvwatercounts.com/) has informative links with educational resources, information on rebates for water saving devices, and upcoming water related events in the area. The CV Water Counts Program uses surveyed data from Coachella Valley residents to guide its water conservation messaging to achieve maximum local impact.

9.9.1.5 Programs to Assess and Manage Distribution System Real Losses MDMWC controls water loss by comparing production with consumption, regular and frequent inspection of distribution facilities, advising customers of observed or suspected leakage downstream of meters, and immediate leak repair. Additionally, MDMWC is in the process of converting it’s meters to AMI. AMI provides real-time data, which will allow MDMWC to quickly detect and repair leaks, further reducing losses.

9.9.1.6 Water Conservation Program Coordination and Staffing Support MDMWC adopted a conservation policy in 2003 as part of its Rules and Regulations, encouraging efficiency in water use and actively discouraging the waste of water. The policy covers shortages, waste, and landscaping provisions.

MDMWC has recently added a conservation coordinator to its staff and is in the process of developing a formal water conservation program.

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 9-25

9.9.1.1 Landscape Conversion Rebate Program
Beginning in 2023, MDMWC offers rebates to its customers for converting their outdoor grass landscaping to desert-friendly landscaping, which requires less irrigation. For residential properties, the rebate consists of $3 per square foot of landscaping or turf, up to $6,000 per project. For homeowners associations and commercial properties, the rebate consists of $2 per square foot of landscaping or turf, up to $10,000 per project. Since 2023, 46 residential and 2 commercial/HOA rebates have been issued, amounting to a total of 77,307 square feet of turf conversion.

9.9.1.2 Other Demand Management Measures
MDMWC makes the following conservation assistance available to high consumption users or those who request it at no cost:
• Location and instructions on how to read water meter. • Identifications of high consumption areas.
• Check for leakage.
• Irrigation schedule and check timers.
• Recommendations on sprinkler repair or improvements.
• Information on landscape conservation methods including water efficient design, maintenance, and plant selection.

9.9.2 Implementation
MDMWC has been implementing its conservation policy since 2003, and has continued to support water conservation over the past five years through the DMMs described herein. The conservation pricing, public outreach, and State-mandated measures due to the drought have all had a significant impact on reducing per capita demands. In addition, voluntary customer turf replacement has reduced MDMWC’s largest demand component, landscape irrigation.

MDMWC has achieved its 2020 target per capita water use. MDMWC plans to continue support of its water conservation policy, water conservation program development, and implementation of DMMs to support water conservation as a way of life.

9.10 Plan Adoption, Submittal, and Implementation
This section addresses the CWC requirements for a public hearing, the adoption process for the RUWMP and MDMWC’s WSCP, plan submittal, plan implementation, and the process for amending an adopted UWMP or WSCP.

9.10.1 Notice of Plan Preparation and Public Hearing
CWC Section 10621(b) requires that water suppliers notify cities and counties within their service area that the UWMP and WSCP are being updated at least 60 days prior to the public hearing. MDMWC issued a Notice of Plan Preparation stating that it was updating its plan and would hold a public hearing to consider adoption of the RUWMP and MDMWC’s WSCP. MDMWC provided written notice to the cities and counties within its service area on March 25, 2026. These entities are identified in Table 9-25, and the notification letters are included in Appendix A of the RUWMP. MDMWC provided an additional notice to the cities and counties with the time and date of the public hearing

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 9-26
Table 9-25. DWR 10-1R Notification to Cities and Counties 60 Day Notice Notice of Public Hearing
City
La Quinta Yes Yes
County
Riverside County Yes Yes
Prior to the public hearing and in accordance with California Government Code §6066, MDMWC provided notice to the public through its website and published announcements of the public hearing in the newspaper on two occasions before the hearing. Copies of the proof of publication are included in Appendix A of the RUWMP.

9.10.2 Public Hearing and Adoption
MDMWC held a public hearing on June 11, 2026, located at 79-050 Avenue 42, Bermuda Dunes, CA 92203 to hear public comment and consider adopting this RUWMP and MDMWC ‘s WSCP. As part of the public hearing, MDMWC provided information on MDMWC’s municipal water demand forecast and supply reliability assessment, as well as an overview of DMMs and the WSCP. The public hearing on the RUWMP and MDMWC’s WSCP took place before the adoption of the Plans, which allowed the opportunity to modify the RUWMP and MDMWC’s WSCP in response to public input before adoption. After the hearing, the Plans were adopted as prepared or as modified during the hearing.

The City’s adoption resolution for the RUWMP and MDMWC’s WSCP is included in Appendix F.

9.10.3 Plan Submittal
MDMWC will submit the standard tables electronically to DWR using the DWR Water Use Efficiency Data Portal along with a copy of the final RUWMP. The RUWMP will also be submitted to the California State Library and to the City of La Quinta and the County of Riverside, which MDMWC supplies water to, within 30 days of adoption.

MDMWC is not regulated by the California Public Utilities Commission, so notification to the Commission does not apply.

9.10.4 Public Availability
The RUWMP and MDMWC’s WSCP will be available on the MDMWC website for public viewing within 30 days of filing the plans with DWR. Commencing no later than July 31, 2026, the RUWMP and WSCP will be available for public review at MDMWC’s office (see address below) during regular business hours.

Myoma Dunes Mutual Water Company
79-050 Avenue 42
Bermuda Dunes, CA 92203
The final documents will also be posted on MDMWC’s website at http://www.myomawater.com.

9.10.5 Amending an Adopted UWMP or WSCP
If MDMWC identifies the need to amend the 2025 RUWMP or MDMWC’s WSCP, it will follow similar processes for notification of cities, counties, and the general public. MDMWC will hold a public hearing to consider the amended RUWMP or WSCP and will follow the same procedures for adoption, submittal, and implementation as the original plans.

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 10-1
Chapter 10 References
CVWD. 2025a. 2025-2026 Engineer's Report on Water Supply and Replenishment Assessment. https://cvwd.org/ArchiveCenter/ViewFile/Item/1107. Accessed February 2026. _____. 2025b. Domestic Water Pressure Zones. https://cvwd.org/DocumentCenter/View/3075/CVWDDomestic-Water-Pressure-Zones-PDF. Accessed February 2026. _____. 2025c. 2024-25 Annual Review and Consumer Confidence Report. https://www.cvwd.org/m/newsflash/home/detail/475. Accessed March 2026. _____. 2025d. Chromium-6 Frequently Asked Questions.
https://www.cvwd.org/DocumentCenter/View/8019/Chromium-6-Frequently-AskedQuestion-PDF. Accessed March 2026. _____. 2025e. Third Amendment to the Delivery and Exchange Agreement between MWD and CVWD for 35,000 acre-feet. https://ceqanet.lci.ca.gov/2025050648. Accessed February 2026. _____. 2026. Wastewater Treatment. https://www.cvwd.org/163/Wastewater-Treatment. Accessed February 2026.

Coachella, City of. 2023. Specific Plans. https://www.coachella.org/departments/developmentservices/specific-plans. Accessed February 2026.

Desert Hot Springs, City of. 2025. Landscaping Standards and Guidelines. https://ecode360.com/43993306. Accessed February 2026.

DWA. 2021. Waste Water Restrictions. https://dwa.org/conservation/water-use/restrictions/.

Accessed February 2026.

DWR. 1964. Bulletin No. 108, Coachella Valley Investigation. July 1964.

Indio. 2025a. FY 2025 Water Cost-of-Service.
https://www.indio.org/home/showpublisheddocument/5422/638822000252200000. Accessed February 2026.

Indio. 2025b. Annual Water Quality Report: 2024 Results. https://www.indio.org/home/showpublisheddocument/5591/638864704674670000. Accessed March 2026.

MDMWC. 2025a. Annual Water Quality Report, Reporting Year 2024. https://www.myomawater.com/files/2024_WQ_CA3310051_WR.pdf. Accessed March 2026. _____. 2025b. Important Information About Your Drinking Water: Myoma Dumes Mutual Water Company Has Detected Hexavalent Chromium (Cr6+) Above California’s New Drinking Water Standard. https://www.myomawater.com/files/Cr6_Notice_English_Spanish_Printing_110725.pdf.

Accessed March 2026.

MSWD. 2025a. Water. https://www.mswd.org/governing-resolutions-and-ordinances/page/title-5- water#section5.02.040. Accessed February 2026.
_____. 2025b. Water Master Plan Update. https://www.mswd.org/media/3251. Accessed February 2026.
_____. 2025c. 2024 Water Quality Report. https://www.mswd.org/media/7536. Accessed March 2026.

Pacific Institute. 2014. Urban Water Conservation and Efficiency Potential in California. https://pacinst.org/wp-content/uploads/2014/06/ca-water-urban.pdf. Accessed September 2025.

Item 19.
2025 Coachella Valley Regional Urban Water Management Plan 10-2
SCAG, Southern California Association of Governments. 2020. Connect SoCal. https://scag.ca.gov/sites/default/files/2024-05/0903fconnectsocal-plan_0.pdf. Accessed February 2026.
_____. 2024. Demographics and Growth Forecast. https://www.scag.ca.gov/sites/default/files/2024- 05/23-2987-tr-demographics-growth-forecast-final-040424.pdf. Accessed February 2026.

SWRCB. 1941. License for Diversion and Use of Water 2292 CalWATRS. Accessed February 2026. _____. 1949. License for Diversion and Use of Water 3097 CalWATRS. Accessed February 2026. _____. 1966. License for Diversion and Use of Water 8226 CalWATRS. Accessed February 2026.

Item 19.

Appendix A
Notification Letters and Newspaper Notices of Plan Preparation and Adoption Hearing (To be included in final)

Item 19.

Appendix B
Reduced Delta Reliance

Item 19.

B-1
Coachella Valley Regional Urban Water Management Plan
Quantifying Regional Self-Reliance and Reduced Reliance on Water Supplies from the Delta Watershed
April 2026
1 Background
Under the Sacramento-San Joaquin Delta Reform Act of 2009, state and local public agencies proposing a covered action in the Delta, prior to initiating the implementation of that action, must prepare a written certification of consistency with detailed findings as to whether the covered action is consistent with applicable Delta Plan policies and submit that certification to the Delta Stewardship Council. Anyone may appeal a certification of consistency, and if the Delta Stewardship Council grants the appeal, the covered action may not be implemented until the agency proposing the covered action submits a revised certification of consistency, and either no appeal is filed, or the Delta Stewardship Council denies the subsequent appeal.

An urban water supplier that anticipates participating in or receiving water from a proposed covered action such as a multi-year water transfer, conveyance facility, or new diversion that involves transferring water through, exporting water from, or using water in the Delta should provide information in their 2025 Urban Water Management Plans (UWMPs) that can then be used in the covered action process to demonstrate consistency with Delta Plan Policy WR P1, Reduce Reliance on the Delta Through Improved Regional Water Self-Reliance (WR P1).

The analysis presented here was developed on behalf of the six agencies participating in the 2025 Coachella Valley Regional Urban Water Management Plan (RUWMP). These six agencies include:
• Coachella Valley Water District
• Coachella Water Authority
• Desert Water Agency
• City of Indio
• Mission Springs Water District
• Myoma Dunes Mutual Water Company
This analysis is based on the water used to meet demands throughout the Coachella Valley. 2 Methodology
As stated in WR P1(c)(1)(C), the policy requires that, commencing in 2015, UWMPs include expected outcomes for improved regional self-reliance and measurable reduction in Delta reliance. The expected outcomes for regional self-reliance and reduced Delta reliance were developed using the approach and guidance described in Appendix C of DWR’s 2025 Urban Water Management Plan Guidebook issued in February 2026.

Item 19.

B-2
Key assumptions include:
• All data were obtained from the current 2025 RUWMP, UWMPs from previous years, the Draft 2027 Indio Subbasin Alternative Plan Update, or the Draft 2027 Mission Creek Subbasin Alternative Plan Update.
• While State Water Project (SWP) supplies are imported into the region to support longterm groundwater basin management and do not directly serve urban demands, estimated SWP imports were used in this analysis to understand Delta reliance. • Demands represent average or normal water year conditions. • Analyses were conducted at the regional scale and all data reflect the total contributions of the six RUWMP agencies as well as their customers.

This analysis uses a normal water year representation of 2010 as the baseline. 3 Regional Supplies from the Delta
Coachella Valley Water District and Desert Water Agency are State Water Project (SWP) Contractors. These agencies import SWP water for regional groundwater basin management in accordance with the Indio Subbasin Alternative Plan Update and Mission Creek Subbasin Alternative Plan Update, described in the RUWMP. SWP supply is used for long-term basin management and not for urban water supply.

Further, while these agencies anticipate increases in future SWP contract supplies through the Sites Reservoir and Delta Conveyance Projects, which will be used to ensure basin sustainability, the RUWMP agencies are also increasing recycled water and non-potable water use throughout the region.
4 Demonstration of Regional Self-Reliance
This analysis uses normal water year demands, rather than normal water year supplies to calculate expected outcomes in terms of the percentage of water used. Using normal water year demands serves as a proxy for the amount of supplies that would be used in a normal water year, which helps alleviate issues associated with how supply capability is presented to fulfill requirements of the UWMP Act versus how supplies might be accounted for to demonstrate consistency with WR P1.

Table B-1 shows the results of adding water use efficiency savings back into the normal year demands to represent demands without water use efficiency savings.

Table B-2 estimates water demands without the water use efficiency calculated in Table B-1.

Table B-3 shows expected outcomes for supplies contributing to regional self-reliance both in amount and as a percentage. Table B-3 demonstrates that the agencies are measurably improving regional self-reliance. In the long-term (through 2050), the expected outcome for normal water year regional self-reliance is an increase of nearly 52 percent from the 2010 baseline. The results show that as a region, the agencies and their customers are measurably reducing reliance on the Delta and improving regional self-reliance.

Item 19.

B-3
Table B-4 demonstrates that the agencies are measurably reducing reliance on supplies from the Delta watershed. The results show that as a region, the agencies and their customers are improving regional self-reliance.

While the RUWMP agencies do not use Delta water supplies to meet urban demands, the SWP supplies that are imported to the region for basin management comprise an decreasing share of the region’s water needs. The 2025 RUWMP summarizes continued progress in developing a diversified water portfolio to meet the region’s water needs.

Item 19.

B-1
Table B-1: Optional Calculation of Water Use Efficiency -To be completed if Water Supplier does not specifically estimate Water Use Efficiency as a supply
Baseline
(2010) 2015 2020 2025 2030 2035 2040 2045 2050
Service Area Water Use Efficiency Demands (Acre-Feet)
Service Area Water Demands with Water Use
Efficiency Accounted For 196,155 156,223 176,931 174,119 176,899 181,961 184,868 188,229 191,596 Non-Potable Water Demands 1 1,158 1,158 1,158 1,372 6,758 6,758 6,758 6,758 6,758 Potable Service Area Demands with Water Use
Efficiency Accounted For 197,313 157,381 175,773 172,747 170,141 175,203 178,110 181,471 184,838 Total Service Area Population
Service Area Population 481,800 496,853 507,951 570,255 677,564 784,873 827,162 869,452 911,741 Water Use Efficiency Since Baseline (Acre-Feet)
Per Capita Water Use (GPCD) 365 283 309 270 224 199 192 186 181 Change in Per Capita Water Use from Baseline
(GPCD) -- (83) (57) (95) (141) (166) (173) (179) (184)
Estimated Water Use Efficiency Since Baseline -- 45,936 32,085 60,606 107,124 145,974 160,372 174,316 188,254 1 Non-potable water demands associated with non-urban uses (e.g., agriculture, golf courses) have been removed from the Delta Reliance calculations.

Table B-2: Calculation of Water Demands Without Water Use Efficiency Total Service Area Water Demands (Acre-Feet) Baseline
(2010) 2015 2020 2025 2030 2035 2040 2045 2050
Service Area Water Demands with Water Use
Efficiency Accounted For 196,155 156,223 176,931 174,119 176,899 181,961 184,868 188,229 191,596 Reported Water Use Efficiency or Estimated Water Use
Efficiency Since Baseline -- 45,936 32,085 60,606 107,124 145,974 160,372 174,316 188,254 Service Area Water Demands without Water Use
Efficiency Accounted For 196,155 203,317 207,858 233,353 277,265 321,177 338,482 355,787 373,092

Item 19.

B-2
Table B-3: Calculation of Supplies Contributing to Regional Self-Reliance Baseline
(2010) 2015 2020 2025 2030 2035 2040 2045 2050
Water Supplies Contributing to Regional Self-Reliance (Acre-Feet) Water Use Efficiency -- 45,936 32,085 60,606 107,124 145,974 160,372 174,316 188,254 Water Recycling 1,158 1,158 1,158 1,372 6,758 6,758 6,758 6,758 6,758 Stormwater Capture and Use -- -- -- -- -- -- -- -- --
Advanced Water Technologies -- -- -- -- -- -- -- -- --
Conjunctive Use Projects -- -- -- -- -- -- -- -- --
Local and Regional Water Supply and Storage Projects -- -- -- -- -- -- -- -- -- Other Programs and Projects that Contribute to Regional Self-Reliance
-- -- -- -- -- -- -- -- --
Water Supplies Contributing to Regional Self-Reliance 1,158 47,094 33,243 61,978 113,882 152,732 167,130 181,074 195,012 Service Area Water Demands without Water Use Efficiency (Acre-Feet) Service Area Water Demands without Water Use
Efficiency Accounted For 196,155 203,317 207,858 233,353 277,265 321,177 338,482 355,787 373,092 Change in Regional Self Reliance (Acre-Feet)
Water Supplies Contributing to Regional Self-Reliance 1,158 47,094 33,243 61,978 113,882 152,732 167,130 181,074 195,012 Change in Water Supplies Contributing to Regional SelfReliance -- 45,936 32,085 60,820 112,724 151,574 165,972 179,916 193,854 Percent Change in Regional Self Reliance (As Percent of Demand w/out WUE) Percent of Water Supplies Contributing to Regional SelfReliance 0.59% 23.16% 15.99% 26.56% 41.07% 47.55% 49.38% 50.89% 52.27% Change in Percent of Water Supplies Contributing to
Regional Self-Reliance 22.57% 15.40% 25.97% 40.48% 46.96% 48.79% 50.30% 51.68%

Item 19.

B-3
Table B-4: Calculation of Reliance on Water Supplies from the Delta Watershed Baseline
(2010) 2015 2020 2025 2030 2035 2040 2045 2050
Water Supplies from the Delta Watershed (Acre-Feet)
CVP/SWP Contract Supplies 124,224 95,109 112,578 89,286 89,018 88,750 88,482 88,215 87,947 Delta/Delta Tributary Diversions -- -- -- -- -- -- -- -- -- Transfers and Exchanges of Supplies from the Delta
Watershed --
-- -- -- -- -- -- -- --
Other Water Supplies from the Delta Watershed -- -- -- 1,357 1,355 12,853 12,851 12,850 33,648 Total Water Supplies from the Delta Watershed 124,224 95,109 112,578 90,643 90,374 101,603 101,333 101,065 121,595 Service Area Water Demands without Water Use Efficiency (Acre-Feet) Service Area Water Demands without Water Use
Efficiency Accounted For 196,155 203,317 207,858 233,353 277,265 321,177 338,482 355,787 373,092 Change in Supplies from the Delta Watershed (Acre-Feet) Water Supplies from the Delta Watershed 124,224 95,109 112,578 90,643 90,374 101,603 101,333 101,065 121,595 Change in Water Supplies from the Delta Watershed (29,115) (11,646) (33,581) (33,850) (22,621) (22,891) (23,159) (2,629) Percent Change in Supplies from the Delta Watershed (As a Percent of Demand w/out WUE) Percent of Water Supplies from the Delta Watershed 63.33% 46.78% 54.16% 38.84% 32.59% 31.63% 29.94% 28.41% 32.59% Change in Percent of Water Supplies from the Delta
Watershed -16.55% -9.17% -24.49% -30.73% -31.69% -33.39% -34.92% -30.74%

Item 19.

Appendix C
Water Shortage Contingency Plans

Item 19.

Coachella Valley Water District

Item 19.

Coachella Valley Water District
Water Shortage Contingency Plan
Final Draft
prepared on behalf of
Coachella Valley Water District
51501 Tyler Street
Coachella, California 92236
prepared by
Rincon Consultants, Inc.
2060 Knoll Drive
Ventura, California 93003
May 11, 2026

Item 19.

Water Shortage Contingency Plan
i
Table of Contents
1 Introduction .........................................................................................................................................1 2 Water Supply Reliability Analysis .......................................................................................................2 3 Annual Water Supply and Demand Assessment Procedures ............................................................3

3.1 Decision-Making Process.........................................................................................................3

3.2 Data and Methodologies ..........................................................................................................4

3.2.1 Evaluation Criteria ........................................................................................................4

3.2.2 Water Supply ................................................................................................................4

3.2.3 Current Year Unconstrained Customer Demand..........................................................4

3.2.4 Current Year Supply .....................................................................................................4

3.2.5 Infrastructure Considerations ........................................................................................4

3.2.6 Other Factors ................................................................................................................4 4 Six Standard Water Shortage Levels .................................................................................................4 5 Shortage Response Actions ...............................................................................................................5

5.1 Supply Augmentation ...............................................................................................................5

5.2 Demand Reduction Actions and Mandatory Use Restrictions ..................................................6

5.3 Operational Changes .............................................................................................................11

5.4 Additional Mandatory Restrictions..........................................................................................11

5.5 Emergency Response Plan....................................................................................................11

5.6 Seismic Risk Assessment and Mitigation Plan ......................................................................11

5.7 Shortage Response Action Effectiveness ..............................................................................12 6 Communication Protocols.................................................................................................................12 7 Compliance and Enforcement ..........................................................................................................14

7.1 Penalties.................................................................................................................................14

7.2 Appeals and Exemption Process ...........................................................................................14 8 Legal Authorities ...............................................................................................................................15

8.1 Declaration of Water Shortage...............................................................................................15

8.2 Proclamation of Local Emergency .........................................................................................15 9 Financial Consequences of WSCP Implementation.........................................................................16

9.1 Financial Impacts and Mitigation Action.................................................................................16

9.2 Reporting Cost of Compliance with Excessive Water Use Prohibition During Drought Emergency .............................................................................................................................16 10 Monitoring and Reporting .................................................................................................................16 11 WSCP Refinement Procedures ........................................................................................................17 12 Special Water Feature Distinction ....................................................................................................17 13 Plan Adoption, Submittal, and Availability ........................................................................................17 14 References .......................................................................................................................................18

Item 19.

Water Shortage Contingency Plan
ii
Tables
Table 1. Annual Assessment Decision-Making Process ........................................................ 3 Table 2. Water Shortage Contingency Plan Levels ................................................................ 5 Table 3. Supply Augmentation and Other Actions.................................................................. 6 Table 4. Demand Reduction Actions...................................................................................... 8 Table 5. Communication Plan Outline...................................................................................13 Table 6. Enforcement Actions ..............................................................................................14 Table 7. City and County Coordination on Proclamation of Emergencies ..............................15 Attachments
Attachment A. Coachella Valley Water District Landscape and Irrigation Design Criteria Attachment B. Legal Authority

Item 19.

Water Shortage Contingency Plan
1 1 Introduction
This Water Shortage Contingency Plan (WSCP) describes how the Coachella Valley Water District (CVWD) intends to predict and respond to foreseeable and unforeseeable water shortages, which occur when available water supplies are reduced to a level that cannot support typical demand at any given time. The WSCP serves as a planning document to guide the CVWD governing board, staff, and the public by identifying response actions that allow for efficient and accountable management of water shortages with predictability and transparency. While the WSCP does not provide absolute direction, it offers a range of response options to address varying water shortage conditions.

Water shortages may be triggered by hydrologic limitations in supply—such as prolonged periods of below-normal precipitation and runoff—failures or limitations in supply or treatment infrastructure, or a combination of both. Hydrologic or drought-related shortages typically develop and subside gradually, whereas infrastructure-related shortages tend to occur more suddenly and unpredictably. Water supplies may be interrupted or substantially reduced due to events such as drought, earthquakes that damage delivery or storage facilities, regional power outages, or toxic spills that affect water quality.

This WSCP describes the following:

1. Water Supply Reliability Analysis. Summarizes the CVWD’s water supply analysis and reliability and identifies the key issues that may trigger a shortage condition.

2. Annual Water Supply and Demand Assessment Procedures. Describes the key data inputs, evaluation criteria, and methodology for assessing the system’s reliability for the coming year and the steps to formally declare any water shortage levels and response actions.

3. Six Standard Shortage Stages. Establishes water shortage levels to clearly identify and prepare for shortages.

4. Shortage Response Actions. Describes the response actions that may be implemented or considered for each stage to reduce gaps between supply and demand as well as minimize social and economic impacts to the community.

5. Communication Protocols. Describes communication protocols under each stage to ensure customers, the public, and CVWD governing board are informed of shortage conditions and requirements.

6. Compliance and Enforcement. Defines compliance and enforcement actions available to administer demand reductions.

7. Legal Authority. Lists the legal documents that grant CVWD the authority to declare a water shortage and implement and enforce response actions.

8. Financial Consequences of WSCP Implementation. Describes the anticipated financial impact of implementing water shortage stages and identifies mitigation strategies to offset financial burdens.

9. Monitoring and Reporting. Summarizes the monitoring and reporting techniques to evaluate the effectiveness of shortage response actions and overall WSCP implementation. Results are used to determine if additional shortage response actions should be activated or if efforts are successful and response actions should be reduced.

10. WSCP Refinement Procedures. Describes the factors that may trigger updates to the WSCP and outlines how to complete an update.

11. Special Water Features Distinctions. Identifies exemptions for ponds, lakes, fountains, pools, and spas, etc.

12. Plan Adoption, Submittal, and Availability. Describes the process for the WSCP adoption, submittal, and availability after each revision.

Item 19.

Water Shortage Contingency Plan
2 CVWD is one of six agencies in the Coachella Valley participating in the development of a 2025 Regional Urban Water Management Plan (RUWMP). Each agency is adopting the RUWMP to meet its reporting requirements under the Urban Water Management Planning Act (UWMP Act). Each agency is also adopting its own WSCP. The agencies have sought to align their shortage levels and shortage response actions to the extent possible, with the intent of reducing confusion for neighboring customers during a shortage. This document is compliant with the California Water Code (CWC) Section 10632 and incorporated guidance from the California Department of Water Resources (DWR) 2025 UWMP Guidebook (DWR 2026).
2 Water Supply Reliability Analysis
This section provides a summary of the supply reliability analysis presented in Chapter 4 of the RUWMP and highlights key issues that could create a shortage condition.

The water supplies of the agencies in the Coachella Valley generally have a high degree of reliability.

The RUWMP participating agencies meet most of their urban demands with groundwater produced from the Indio and Mission Creek Subbasins of the Coachella Valley Groundwater Basin. The groundwater basin is large enough to provide storage that allows continued production during dry periods. Because production exceeds the recharge provided by precipitation and return flows, the agencies use imported water to recharge the groundwater basin. These sources of imported water for replenishment include:
• Colorado River water that CVWD receives primarily through the Coachella Canal for replenishment at Thomas E. Levy Groundwater Replenishment Facility (GRF) and Palm Desert GRF, and a small portion through Metropolitan Water District of Southern California’s (MWD’s) Colorado River Aqueduct for replenishment at Whitewater River GRF. • State Water Project (SWP) water that CVWD and Desert Water Agency (DWA) have rights to receive. Because the SWP infrastructure does not extend into the Coachella Valley, CVWD and DWA have an exchange agreement with MWD to receive Colorado River water from its Colorado River Aqueduct for replenishment at Whitewater River GRF. In return, MWD receives SWP water through the SWP infrastructure based on the annual SWP allocations to CVWD and DWA.

CVWD’s Colorado River water supplies meet the demands of agricultural and non-potable customers, as well as groundwater replenishment (to augment the Valley’s potable water supply). With the 2007 Interim Guidelines for the Colorado River expiring in 2026, CVWD has been actively participating in the negotiations for the successor agreement. Although the terms of the agreement are still being negotiated, there is a likelihood that supply reductions may be necessary to respond to changes in the Colorado River hydrology. Any impacts to CVWD’s supplies and resultant actions will be discussed with the CVWD Board and updated in CVWD’s Canal Water Shortage Contingency Plan, which is Chapter 3.10, Article XII of CVWD’s administrative code.

Drought conditions in the Sierra Nevada would influence the SWP water allocation; thus, reducing the SWP Exchange water received by CVWD and DWA. Reductions in SWP allocations have occurred during prior droughts and SWP reliability is forecasted by DWR to continue declining with future climate changes (DWR 2025). SWP exchange water is used for replenishment of the Indio and Mission Creek Subbasins and is not a direct source of urban water supply. Consequently, water use restrictions due to drought involving the SWP water supply would likely be implemented only during a prolonged drought.

During dry periods when less imported water is available, groundwater production will exceed the amount of recharge, and the volume of groundwater in storage will be reduced. However, these reductions can be reversed in wet years when additional imported water is available. The Coachella Valley Groundwater Basin is a large basin which provides a buffer during dry periods, thus allowing the agencies to develop long-term plans and programs to manage regional water supplies. The Indio Subbasin Alternative Plan Update (Indio Subbasin GSAs 2021) and Mission Creek Subbasin Alternative Plan Update (Mission Creek Subbasin Management Committee 2021) both address groundwater sustainability considering hydrologic variability of replenishment supplies and other local water sources.

Item 19.

Water Shortage Contingency Plan
3 The reliability analysis for CVWD is presented in Section 4.7 of CVWD’s chapter of the RUWMP. Although that analysis demonstrates that the region’s urban water supply is reliable, there are potential issues that could create a shortage condition. These include:
• An extended drought more severe than historic events, possibly exacerbated by climate change. • A natural disaster or a malevolent act that leads to prolonged disruption of imported water delivery from the Colorado River or the SWP.
• Reductions in imported water supply due to environmental restrictions related to endangered species or habitat protection.
• Identification of a currently unregulated contaminant that has widespread effects on the region’s groundwater supply.
• Regulatory mandates to reduce water use.

Water shortage contingency planning provides a way to plan for these risks and anticipate actions that can be implemented to manage the impacts. This plan describes how CVWD intends to respond to such shortage events. The responses have been aligned with those of other RUWMP participating agencies to the extent possible.
3 Annual Water Supply and Demand Assessment Procedures
CVWD is required to prepare an Annual Water Supply and Demand Assessment (Annual Assessment) and submit it to DWR each year. The Annual Assessment is intended to meet requirements of Water Code Section 10632.1 and assess the likelihood of a water shortage occurring during the next 12 months.

This section of the WSCP outlines the procedures that CVWD will use to prepare the Annual Assessment.

These are consistent procedures that CVWD will follow annually to determine whether to activate the WSCP.

3.1 Decision-Making Process
DWR requires a defined decision-making process for performing the Annual Assessment. The process and anticipated timeline are presented in Table 1.

Table 1. Annual Assessment Decision-Making Process
Anticipated
Timeline of
Each Year Activities
February CVWD staff review available data related to anticipated supplies and demands.

March The six agencies participating in the Coachella Valley RUWMP review the data and determine whether a consistent region-wide determination on water supply reliability can be made. If needed, individual agencies may elect to activate their WSCP at different shortage levels than other participating agencies.

April CVWD staff make a determination whether to recommend implementation of shortage response actions.

May If shortage response actions are to be implemented, CVWD management present the recommendation to the governing board for consideration.

If the governing board decides to implement the WSCP, provide public notice of a hearing to consider changes in the implementation of the shortage response actions.

June CVWD staff prepare the Annual Assessment and submit to DWR by July 1.

Item 19.

Water Shortage Contingency Plan
4 3.2 Data and Methodologies
This section describes the data and methodologies that will be used to evaluate water system reliability for the Annual Assessment.

3.2.1 Evaluation Criteria
CVWD will rely on locally applicable criteria for each Annual Assessment. These criteria will include the findings of the Annual Reports prepared for the Indio Subbasin and the Mission Creek Subbasin for compliance with the Sustainable Groundwater Management Act. Findings from CVWD’s annual Engineer’s Report on Water Supply and Replenishment Assessment will also be incorporated.

3.2.2 Water Supply
CVWD’s anticipated supplies will be quantified for the near-term future, and descriptive text will be used to note any anticipated reductions in supply.

3.2.3 Current Year Unconstrained Customer Demand
CVWD will prepare an estimate of unconstrained demand (as the term is used in Water Code Section 10632(a)(2)(B)(i)). The estimated demand will be calculated using the demand projection approach described in Section 4.7 of CVWD’s chapter of the RUWMP, in combination with updated data for connections, climate, changes in land use, and recent water usage history.

3.2.4 Current Year Supply
CVWD will describe the anticipated use of water supplies for the coming year, with the assumption that the following year will be dry. The supplies will be characterized in a manner consistent with the RUWMP, in combination with updated data for climate and recent observations.

3.2.5 Infrastructure Considerations
CVWD will describe any potential infrastructure constraints on the ability to deliver adequate supplies to meet expected customer demands in the coming year. CVWD will verify that its system of wells, pipelines, pump stations, and storage tanks have adequate capacity to deliver the anticipated demands.

CVWD will describe any anticipated capital projects that are intended to address constraints in production, treatment, or distribution.

3.2.6 Other Factors
CVWD will describe any specific locally applicable factors that could influence or disrupt supplies. CVWD will also describe unique local considerations that are incorporated as part of the Annual Assessment. 4 Six Standard Water Shortage Levels
The RUWMP participating agencies have elected to use the six standard shortage levels included in guidance documents prepared by DWR. The six standard water shortage levels correspond to progressively increasing estimated shortage conditions (up to 10-, 20-, 30-, 40-, 50- percent, and greater than 50-percent shortage compared to the normal reliability condition). These levels are described in Table 2.

Item 19.

Water Shortage Contingency Plan
5 Table 2. Water Shortage Contingency Plan Levels
Shortage
Level
Percent Shortage
Range Description Shortage Response Actions
1 Up to 10% Normal water supplies Mandatory prohibitions defined by the state, rebate programs, ongoing
restrictions that include water waste,
and tiered rates or conservation
penalties.
2 Up to 20% Slightly limited water
supplies
Outdoor water use restrictions based on
time of day, increased water waste
patrols
3 Up to 30% Moderately limited
water supplies
Outdoor water use restrictions on days
per week, restrictions on filling
swimming pools
4 Up to 40% Limited water supplies Limits on new landscaping, expanded public information campaign
5 Up to 50% Significantly limited
water supplies
Limits on watering of parks or school
grounds
6 Greater than 50% Severe shortage or
catastrophic incident
No potable water use for outdoor
purposes
Each level in Table 2 represents an anticipated reduction in the supplies that would normally be available to CVWD. These supply reductions could be the result of a variety of potential causes including natural forces, system component failure or interruption, regulatory actions, contamination, or any combination of factors. CVWD may need to activate shortage levels across its entire service area or within certain areas that are impacted by an event.

The levels involve voluntary and mandatory conservation measures and restrictions, depending on the causes, severity, and anticipated duration of the water supply shortage. The locally appropriate shortage response actions that would be taken at each level to address the resulting gap between supplies and demands are described in the following section.
5 Shortage Response Actions
This section describes the shortage response actions that would be taken by CVWD at each shortage level. These actions have been grouped into categories including:
• Supply Augmentation Actions
• Demand Reduction Actions and Mandatory Use Restrictions • Operational Changes

5.1 Supply Augmentation
For long-range planning, CVWD continues to evaluate opportunities for transfers, exchanges, and other purchases of imported water to increase supply reliability. CVWD and DWA collaborate to replenish the Indio and Mission Creek Subbasins with imported water, creating a stored supply that can be used for emergencies or longer-term shortages. CVWD and DWA are also making investments in increasing supply reliability from the SWP through the Delta Conveyance Facility and in securing new supplies like Sites Reservoir.

Additionally, the RUWMP participating agencies continue to implement water conservation measures and increase use of recycled water usage to reduce groundwater demand. CVWD’s demand management programs are described in Section 4.9 of CVWD’s chapter of the RUWMP.

Item 19.

Water Shortage Contingency Plan
6 In their WSCP, agencies have the option of identifying short-term supply augmentation actions that would be taken during a shortage. These actions are intended to be separate from the long-range planning efforts to sustainably manage the groundwater basin. The short-term supply augmentation measures that could be implemented are presented in Table 3.

Table 3. Supply Augmentation and Other Actions
Shortage
Level
Supply
Augmentation
Methods and
Other Actions
by Water
Supplier
How much is this going to
reduce the shortage gap?
Additional Explanation or Reference
Volume or
Percentage
Shortage Gap
Reduction
Value
1 - 6 Exchanges Volume Medium Emergency connections with neighboring agencies could be
activated or constructed to help
exchange water with adjoining systems.
5 Increased NonPotable Water
Use
Volume Medium In areas where recycled water or other
non-potable supply is available,
customers could be mandated to use
these supplies and cease use of potable
water.
6 Other Actions Volume Medium Additional non-potable water sources such as new shallow groundwater wells.

5.2 Demand Reduction Actions and Mandatory Use Restrictions The RUWMP participating agencies have aligned their demand reduction actions to the greatest extent possible, while allowing each agency to tailor its response to the unique characteristics of its service area.

The agencies conducted public workshops to gather input on actions that could be taken during a water shortage. The input from stakeholders was used to select and prioritize actions that reflected the values of the community. Key elements of the input included:
• The importance of recognizing the conservation efforts that many customers have already made and not imposing requirements for all customers to meet the same percentage reduction in water use.
• The importance of involving Homeowner Associations (HOAs) to help implement and communicate response actions to individuals.
• The benefits of tiered rates in allowing customers to pay less for their basic efficient use and more for higher use.
• A balanced program should include incentives (such as expanded rebates for turfgrass removal) as well as penalties (such as drought or conservation penalties). • A range of approaches is needed to communicate with customers and end users, including social media, web sites, bill inserts, presentations, and virtual tours, ideally in multiple languages.

The demand reduction actions that could be implemented at each shortage level are shown in Table 4.

During a shortage, CVWD may implement some or all of the actions as needed, depending on actual conditions.

As described in Section 4.9 of CVWD’s chapter of the RUWMP, CVWD implements demand management measures (DMMs) to increase water use efficiency. The RUWMP includes description of water waste prevention ordinances, metering, conservation pricing, and public education and outreach programs for conservation.

Item 19.

Water Shortage Contingency Plan
7 CVWD implements mandatory restrictions on water use through its Landscape Ordinance provided in Attachment A. This ordinance includes prohibitions on the installation of non-functional turf in new development and penalties for violation of inefficient landscape irrigation runoff. Through this ordinance, customers who may be exceeding Maximum Applied Water Allowance provided by CVWD may be interviewed for water usage to ensure compliance and may be found to have service discontinued if causing water waste.

Item 19.

Water Shortage Contingency Plan
8 Table 4. Demand Reduction Actions
Shortage
Level ID Demand Reduction Actions
How much is this going to
reduce the shortage gap?
Penalty or
Enforcement
Volume or
Percentage
Shortage Gap
Reduction Value
1 1.1 Applying any water to outdoor landscapes in a manner that causes runoff such that water flows onto adjacent property, non-irrigated areas, private and public walkways, roadways, parking lots, or structures is prohibited.

Volume Low Yes

1.2 Using any water in a fountain or other decorative water feature is prohibited, unless the water recirculates.

Volume Low Yes

1.3 Applying water to driveways, sidewalks, concrete or asphalt is prohibited unless to address immediate health and safety needs.

Reasonable pressure washer or water broom use is permitted.

Volume Low Yes

1.4 Spray irrigation of outdoor landscapes during and within 48 hours after rainfall of 0.10 inches is prohibited.

Volume Low Yes

1.5 Using a hose to wash a vehicle, windows, or solar panels is prohibited unless an automatic shut-off nozzle or pressure washer is used.

Volume Low Yes

1.6 Broken sprinklers shall be repaired within five business days of notification by agency, and leaks shall be repaired as soon as practical.

Volume Low Yes

1.7 Draining and refilling of private swimming pools is discouraged, unless necessary for health and safety or leak repair.

Volume Low No

1.8 Hotels will provide guests the option of choosing not to have towels and linens laundered daily.

Volume Low No

1.9 Agency shall discourage overseeding. Volume Low No

1.10 Agency shall provide rebates for landscape efficiency. Volume High No

1.11 Agency shall offer water use surveys/audits. Volume Medium No

1.12 Agency shall provide rebates on plumbing fixtures and devices. Volume Medium No

1.13 Agency may impose water budget based tiered rates or conservation penalties to encourage water use efficiency
Volume Medium Yes

Item 19.

Water Shortage Contingency Plan
9 Shortage
Level ID Demand Reduction Actions
How much is this going to
reduce the shortage gap?
Penalty or
Enforcement
Volume or
Percentage
Shortage Gap
Reduction Value
2 2.1 During times designated by the CVWD Board, outdoor water use is prohibited for spray irrigation except for leak checks or with an agency approved conservation alternative plan.

Volume Medium Yes

2.2 Restaurants can serve water only on request. Volume Low No

2.3 Agency shall encourage use of non-potable water for construction, if available.

Volume Low No

2.4 Agency shall actively discourage overseeding. Volume Medium No

2.5 Agency shall expand public information campaign. Volume Medium No

2.6 Agency shall increase water waste patrols. Volume Medium Yes

2.7 Agency shall reduce hydrant and dead-end line flushing. Volume Low No 3 3.1 Outdoor water use is allowed only three days a week for spray irrigation (Monday, Wednesday, and Friday).

Volume High Yes

3.2 Drip or subterranean irrigation is allowed seven days per week, during non-daylight hours.

Volume Medium Yes

3.3 Commercial nurseries are to use water only on alternate days during non-daylight hours for outside operations.

Volume Low Yes

3.4 Decorative ponds, non-irrigation system golf course water hazards, fountains, and other waterscape features are not to be filled or replenished.

Volume Low Yes

3.5 No filling of swimming pools or landscaping ponds unless necessary for health and safety or leak repair.

Volume Low Yes

3.6 Commercial car washes must use recycled water or recirculating water systems.

Volume Medium Yes

3.7 Spray irrigation of medians and parkways is prohibited. Volume Medium Yes

3.8 Agency shall encourage counties, cities, Homeowners Associations (HOAs) and other enforcement agencies to suspend code enforcement and fines for brown turfgrass areas and to otherwise comply with new State laws regarding limitations on such enforcement.

Volume Low No

Item 19.

Water Shortage Contingency Plan
10 Shortage
Level ID Demand Reduction Actions
How much is this going to
reduce the shortage gap?
Penalty or
Enforcement
Volume or
Percentage
Shortage Gap
Reduction Value

3.9 Agency shall strengthen customer billing messages with use comparisons.

Volume Medium No

3.10 Agency shall implement water use audits targeted to key customers to ensure compliance with directives.

Volume Medium No

3.11 Agency shall expand rebate programs. Volume Medium No

3.12 Agency shall impose mandatory drought penalties Volume High Yes 4 4.1 Turfgrass landscapes may not be watered except where subterranean or non-potable water systems are used
Volume High Yes

4.2 Agency shall increase mandatory drought penalties from 3.12. Volume High Yes

4.3 Agency shall expand public information campaign. Volume Medium No 5 5.1 Watering turfgrass is prohibited. Volume High Yes

5.2 The use of misting systems is prohibited. Volume Medium Yes

5.3 Turfgrass at parks and school grounds are to be watered with recycled water, if available, or not at all.

Volume Medium Yes

5.4 Golf course greens and tees may be watered no more than two times per week during non-daylight hours with recycled water, or not at all.

Volume Medium Yes

5.5 Trees, desert plants and shrubs may be watered only with drip, subterranean or non-adjustable bubbler irrigation systems during nondaylight hours.

Volume High Yes

5.6 Agency shall increase mandatory drought penalties from 4.2. Volume High Yes

5.7 Agency shall impose moratorium or net zero demand on new connections.

Volume N/A Yes
6 6.1 Commercial nurseries shall discontinue all use of potable water for watering and irrigation.

Volume Low Yes

6.2 Watering of livestock is permitted as necessary. Volume N/A Yes

6.3 Outdoor water use is prohibited. Volume High Yes

6.4 Restaurants must use disposable cups, plates, and utensils. Volume Low Yes

6.5 Agency shall implement mandatory rationing. Volume High Yes

Item 19.

Water Shortage Contingency Plan
2 5.3 Operational Changes
CVWD has identified potential operational changes that could be made to help address a short-term gap between demands and available supplies. These include improved monitoring and analysis of customer water usage, reductions in flushing of hydrants and dead-end lines, and use of emergency connections with neighboring water agencies. Some of the potential actions are included in Table 4. CVWD may also expedite planned system improvement projects that include reduction in water loss (e.g., replacement of water mains that are experiencing higher rates of leaks and breaks).

5.4 Additional Mandatory Restrictions
CVWD has identified a series of restrictions that could be implemented at different shortage levels. These restrictions are included in the demand reduction actions in Table 4.

5.5 Emergency Response Plan
The Water Code requires that an agency’s WSCP address catastrophic water shortages and plans to address them. This information can be addressed in the agency’s Emergency Response Plan (ERP).

CVWD’s ERP contains sensitive information related to potential vulnerabilities or impacts of natural disasters or malevolent acts. Therefore, these documents are not typically made publicly available.

CVWD’s ERP outlines specific disaster-related procedures to guide staff in responding efficiently to catastrophic interruptions of water supply.

Five of the RUWMP participating agencies collaborate on planning efforts, including emergency response, through the Coachella Valley Regional Water Management Group (CVRWMG). In addition, CVWD, DWA, Indio, and MSWD are members of the California Water/Wastewater Agency Response Network (CalWARN), which supports and promotes emergency preparedness. More information about CalWARN is available at their web site at www.calwarn.org.

The region’s imported water supplies from the Colorado River and the SWP could be disrupted by an earthquake. Because the agencies use local groundwater to meet urban demands, the agencies could continue to meet short-term urban demands with groundwater production. The agencies have installed backup generators at key water production facilities to allow continued operation during a power outage.

DWR has plans in place to make emergency repairs to the SWP, and MWD has plans in place to make emergency repairs to the CRA. CVWD has plans to make emergency repairs to the Coachella Canal.

CVWD staff receives regular Incident Command System (ICS) training through the Federal Emergency Management Agency (FEMA), and drills are conducted routinely. CVWD remotely monitors the status of most key facilities at CVWD headquarters, which enables them to detect areas affected by disasters. The other RUWMP participating agencies also participate in ICS training and regularly monitor key water facilities remotely.

If imported water supplies were disrupted for an extended period, it would reduce the water supply available for replenishment of the groundwater basin. It could also lead to increased groundwater pumping by non-urban users who normally use imported canal water. CVWD would implement levels of this WSCP as needed if pumping needed to be decreased while imported water supplies were interrupted.

5.6 Seismic Risk Assessment and Mitigation Plan
Water Code Section 10632.5 requires the agencies to assess seismic risk to water supplies as part of their WSCP. The code also requires a mitigation plan for managing seismic risks. In lieu of conducting their own seismic risk assessment, which can be a lengthy process, suppliers can comply with the Water Code requirement by submitting the relevant local hazard mitigation plan or multi-hazard mitigation plan.

CVWD is a participant in the Riverside County Multi-Jurisdictional Local Hazard Mitigation Plan (MJLHMP) which was updated in 2025 (Riverside County 2023). The Riverside County MJLHMP includes an assessment of the region’s vulnerability to a broad range of hazards, including earthquakes.

It also describes mitigation strategies and actions to reduce the impacts of a seismic event. The RUWMP

Item 19.

Water Shortage Contingency Plan
2 participating agencies continue to include seismic risk assessment in their planning process for system improvements.

Additionally, CVWD has also prepared and implements its own LHMP which was updated in 2024 (CVWD 2024). The CVWD LHMP is used to identify short- and long-term policies, programs, and other activities to reduce risk of CVWD assets and protect residents following hazard events.

5.7 Shortage Response Action Effectiveness
As a standard operating procedure, water is tracked through the production, distribution, and billing systems. During water shortage conditions, water use can be measured in comparison to what is considered to be normal year demand (i.e., current customer base with approximately average rainfall), or in reference to a specific base year as may be dictated by Statewide requirements.

The effectiveness of actions initiated at each shortage response is challenging to measure and can vary significantly. Effectiveness is also impacted by successful communication and outreach efforts. It is also difficult to assess the effectiveness of each activity separately as each stage implements several activities at once. For the purpose of WSCP implementation, it is assumed that the upper end of the water savings would come from the use of multiple demand reduction actions in a stage. Reduction in the shortage gap for Stages 2-6 assumes all measures in the previous stage(s) are implemented and those savings are counted toward the total reduction in the shortage gap. 6 Communication Protocols
Timely and effective communication is a key element of WSCP implementation. CVWD will need to inform customers, the general public, and other government entities of WSCP actions taken during a water shortage (either one determined by the Annual Assessment, an emergency, catastrophic, or other event). An overview of planned communication approaches is provided in Table 5. These protocols have been aligned between the RUWMP participating agencies where possible, but some are tailored to the needs of CVWD’s service area. CVWD will adjust its communication strategy as needed to address issues that are impacting the entire service area or limited areas.

Item 19.

Water Shortage Contingency Plan
13 Table 5. Communication Plan Outline
Level 1
Up to 10% Voluntary
Conservation
Level 2
Up to 20% Mandatory
Conservation
Levels 3 and 4
Up to 30% or 40% Mandatory
Conservation
Levels 5 and 6
Up to 50% or Over 50%
Mandatory Conservation
Standard outreach efforts in effect
(media relations, social media,
website)
Update conservation messages to
generate immediate
actions/behaviors by public,
include information on
enforcement actions
Update conservation messages to
raise awareness for more severe
water-saving actions/behaviors by
public, highlight need for reduced
outdoor water use
Update conservation messages to
reflect extreme or emergency
condition and likely need to focus
water use on health/safety needs
Promote ongoing Water Use
Efficiency (WUE) programs and
tools and partnerships designed
to achieve long-term water
management goals
Increase promotion of ongoing
WUE programs/tools with
targeted promotion to highly
impacted customers.

Increase promotion of ongoing
WUE programs/tools with
targeted promotion to highly
impacted customers.

Suspend promotion of long-term
WUE programs/tools to focus on
imminent needs.

Standard conservation campaign
including promotion of water
efficiency rebate programs.

Supplement Level 1 activities with
additional tactics as needed;
provide regular condition updates
to customers as needed and to
the media upon request; promote
water assistance programs to
vulnerable populations; enhance
outreach to impacted industries
and customers.

Supplement Level 2 outreach with
additional tactics as needed;
provide regular condition updates
to customers and the media as
needed; promote water
assistance programs to
vulnerable populations; increase
outreach to impacted industries
and customers.

Supplement Level 3-4 outreach
with additional tactics as needed;
provide regular condition updates
to customers and the media as
needed; promote water
assistance programs to
vulnerable populations; increase
outreach to impacted industries
and customers.

Board reports on public
communication and water-use
efficiency outreach activities via
the monthly General Manager’s
Report.

Provide updates to elected
officials, civic leaders, and the
board as needed.

Provide conservation updates to
the board as needed; issue
briefings with elected officials,
civic and business leaders as
needed.

Continue providing board reports
and briefings as needed; issue
briefings with elected officials,
civic and business leaders as
needed.

Standard coordination with
regional partners including other
water agencies.

Enhance coordination with local
neighboring agencies, regional
partners and local/state/federal
policy makers as needed.

Continue enhanced coordination
with local neighboring agencies,
regional partners and
local/state/federal policy makers
as needed.

Increase enhanced coordination
with neighboring agencies,
regional partners, and
local/state/federal policy makers
as needed (e.g. daily or weekly
briefings or email updates, etc.).

Item 19.

Water Shortage Contingency Plan
14 7 Compliance and Enforcement
This section describes how CVWD will ensure compliance with and enforce provisions of the WSCP. The RUWMP participating agencies have worked together to align their policies where possible, but each agency implements its compliance and enforcement actions within its service area.

7.1 Penalties
The penalties that could be imposed for non-compliance are summarized in Table 6. As described in Section 4.9 of CVWD’s chapter of the RUWMP, CVWD Landscape and Irrigation System Design Ordinance includes prohibitions on the installation of non-functional turf in new development and penalties for non-compliance with the Ordinance. Through this ordinance, customers who may be exceeding Maximum Applied Water Allowance provided by CVWD may be interviewed for water usage to ensure compliance and may be found to have service discontinued if causing water waste.

Table 6. Enforcement Actions
Water
Shortage
Level
First Three
Violations
Fourth
Violation
(within rolling
12 months)
Fifth Violation
(within rolling
12 months)
Subsequent
Violations
Additional
Information
1 - 6 Notice of noncompliance
Notice of noncomplianceNotice of noncompliance$50 fine, followed by
$100 fine,
followed by,
$200 fine,
followed by
$500 fine
followed by
$1,000 fine,
followed by
$2,000 fine
The General Manager
may initiate
procedures to
terminate water
service, seek
injunctive relief in the
Superior Court, or take
enforcement action,
including discontinuing
or appropriately
limiting water service
by the installation of a
flow restricting device
to any customer, for
more than six
violations of the
Ordinance in a rolling
twelve-month period.

7.2 Appeals and Exemption Process
This section describes the appeals and exemption processes.

Any water user violating the regulations and restrictions on water use may receive a written notice for the violation. The water user shall have seven days from receipt of the notice to submit a written request for a hearing. If no hearing is requested, or at the hearing it is determined that the water user has committed a violation, a civil penalty may be levied.

The government codes and ordinances that are used to implement these policies and processes are discussed in Section 7.

Item 19.

Water Shortage Contingency Plan
15 8 Legal Authorities
This section describes the legal authorities that CVWD relies upon to implement the shortage response actions and the associated enforcement actions.

CVWD’s District Code Section 3.30 codifies the WSCP (CVWD 2026). A copy of the legal authority is included in Attachment B.

8.1 Declaration of Water Shortage
In accordance with Water Code Chapter 3 (commencing with Section 350) of Division 1 general provisions regarding water shortage emergencies, CVWD shall declare a water shortage emergency in the event of a catastrophic interruption in supply.

8.2 Proclamation of Local Emergency
CVWD shall coordinate with any city or county within which it provides water supply services for the possible proclamation of a local emergency under California Government Code, California Emergency Services Act (Article 2, Section 8558). Table 7 contains a list of contacts for all cities or counties for which the RUWMP participating agencies provide service in the WSCP. Along with developed coordination protocols, this can facilitate compliance with this section of the Water Code in the event of a local emergency as defined in subpart (c) of Government Code Section 8558.

Table 7. City and County Coordination on Proclamation of Emergencies City or County Contact CVWD CWA DWA Indio MDMWC MSWD
Imperial County Office of Emergency
Services
X
Riverside County Emergency
Management
Department

X X X X X X
City of La Quinta Emergency
Management Division
X X X
City of Indio Emergency Services
Coordinator
X X X
City of Coachella Emergency Services
Coordinator
X X X
City of Palm Desert Emergency Services
Coordinator
X
City of Cathedral City Emergency Manager X X
City of Indian Wells Emergency Services
Coordinator
X
City of Rancho Mirage Emergency Services
Coordinator
X
City of Palm Springs Emergency
Management
Coordinator
X X
City of Desert Hot
Springs
Emergency Services
Coordinator
X X

Item 19.

Water Shortage Contingency Plan
16 9 Financial Consequences of WSCP Implementation
This section describes the anticipated financial consequences to CVWD of implementing the WSCP. The description includes potential reductions in revenue due to lower water sales and increased expenses associated with implementing the shortage response actions.

9.1 Financial Impacts and Mitigation Action
Potential financial impacts of implementing the WSCP could include:
• Reduced revenue from reduced water use
• Increased staff costs for tracking, reporting, patrolling, and enforcing restrictions • Economic impacts associated with water-dependent businesses in the service area Potential mitigation measures include:
• Triggering drought rate structures or surcharges
• Using financial reserves
• Reducing operation and maintenance expenses (expenses related to source of supply and pumping will fall due to reduced imported water availability and/or water production) • Deferring capital improvement projects
• Reducing future projected operation and maintenance expenses • Increasing fixed readiness-to-serve charge
• Increasing commodity charge and water adjustment rates to cover revenue shortfalls • Seeking alternative source of funding, such as state or federal grants or loans • Other financial management mechanisms
CVWD will monitor financial conditions during a water shortage and take appropriate actions as needed.

CVWD maintains financial reserves that can be used to continue operations during a period of reduced water sales. CVWD has the ability to increase water rates or implement surcharges or penalties to increase revenues from water sales.

9.2 Reporting Cost of Compliance with Excessive Water Use Prohibition During Drought Emergency
To ensure customers comply with the restrictions implemented in a water shortage emergency, additional costs may be incurred to monitor and enforce response actions. The incurred cost may vary depending on the shortage stage and duration of the water shortage emergency. The cost of compliance may be tracked when a shortage is declared. CVWD may track staff time and resources used to implement the WSCP, including reduced revenue, implementing and enforcing shortage response actions, and communication and outreach efforts.

CVWD currently has Operating and Capital Improvement Program reserves, funded and available for use as intended. In the short term, the use of these reserves would have no impact on CVWD customers or CVWD. In the long term, rates would possibly be raised to replenish reserves. 10 Monitoring and Reporting
This section describes how CVWD will monitor and report on implementation of the WSCP.

CVWD will gather data on key water use metrics and use the data to evaluate the effectiveness of response actions in achieving their intended water use reduction purposes. CVWD will also gather data on customer compliance to evaluate the effectiveness of enforcement actions. CVWD will gather and report data at frequencies adequate to meet reporting requirements established by the State Water Resources Control Board and other government agencies, as needed.

Item 19.

Water Shortage Contingency Plan
17 CVWD will monitor water use by customers using billing systems and operational control systems to monitor production and consumption. Each customer is metered, and billing records will be compiled and used to observe trends in water consumption. Each groundwater well and imported water connection point is also metered, and production records will be used to observe trends in water production. Levels in reservoirs can be monitored using the operational control systems to help identify potential high usage or leaks. CVWD staff may also perform field visits and record observations to monitor water use and identify potential issues for follow-up.

For agencies that have budget-based rates, the consumption by customers will be compared to the water budgets to determine effectiveness of response actions. For agencies without defined water budgets for each customer, the consumption records will be aggregated by customer class to evaluate response actions and identify potential additional measures.
11 WSCP Refinement Procedures
CVWD will monitor the implementation of this plan to evaluate its effectiveness as an adaptive management tool. The monitoring and reporting program described in Section 9 will provide information on the effectiveness of the shortage response actions during any shortage levels that may be invoked. If CVWD determines that the shortage response actions are not effective in producing the desired results, CVWD will initiate a process to refine the WSCP. CVWD will consider the addition of new shortage response actions, or changing the levels when shortage response actions are implemented. Suggestions for refinements will be collected from agency staff, customers, industry experts, and the general public.

The RUWMP participating agencies will share data and suggestions for refinement to identify opportunities to increase the effectiveness of the WSCP while maintaining alignment with other agencies in the region when possible.
12 Special Water Feature Distinction
The RUWMP participating agencies have distinguished swimming pools and spas as recreational water features, while non-pool and non-spa water features are considered decorative water features. This distinction is used in the shortage response actions because decorative water features have the potential to use recycled water, while pools and spas (recreational water features) use potable water for health and safety considerations. However, this distinction does not apply to the hot mineral spring pools and spas throughout the Desert Hot Springs area; while they are recreational, they also do not rely on potable water.
13 Plan Adoption, Submittal, and Availability
This 2025 WSCP was presented for adoption at the CVWD public meeting on May 27, 2026. Notifications were sent to the cities and counties as described in CVWD’s 2025 UWMP. To comply with the notice to the public, CVWD published notices in the local newspaper at least two weeks in advance with five days between publications. The WSCP was also made available prior to the public hearing.

The WSCP was formally adopted on May 27, 2026, by CVWD Ordinance, included in the 2025 UWMP.

The WSCP was made available to all staff, customers, and any affected cities, counties, or other members of the public at CVWD’s office and online within 30 days of the adoption date.

The WSCP was submitted to DWR via the Water Use Efficiency Data Portal at the same time as the 2025 UWMP, but no later than July 1, 2026. A hard copy of the 2025 UWMP and WSCP were submitted to the California State Library within 30 days of adoption. Electronic and/or hard copies were provided to all cities and counties within CVWD’s service area within 30 days of adoption.

Based on DWR’s review of the WSCP, CVWD will make any amendments in its adopted WSCP, as required and directed by DWR. If CVWD revises its WSCP, then an electronic copy of the revised WSCP will be submitted to DWR within 30 days of its adoption.

Item 19.

Water Shortage Contingency Plan
18 14 References
Coachella Valley Water District (CVWD). 2024. 2024 Local Hazard Mitigation Plan Update. Available:
https://www.cvwd.org/611/Local-Hazard-Mitigation-Plan. Accessed: March 2026. ________2026. Coachella Valley Water District Code, Chapter 3.10 Canal Irrigation and Drainage System Rules and Regulations. Available: https://cvwd.district.codes/CVWDC/3.10. Accessed:

March 2026.

Riverside County, Emergency Management Department. 2023. County of Riverside Operational Area, Multi‑Jurisdictional Local Hazard Mitigation Plan (MJLHMP). Revised May 2025. Available:
https://rivcoready.org/sites/g/files/aldnop181/files/users/user41/MJLHMP%205.1.25a.pdf.

Accessed: March 2026.

California Department of Water Resources (DWR). 2025. The State Water Project Draft Delivery Capability Report 2025. Available: https://s3.amazonaws.com/og-production-open-data-cnra892364687672/resources/5d238ff5-899b-4357-8835- 5b043f61f5da/draft_dcr25_mainreport_final_2025-12-17.pdf?X-Amz-Algorithm=AWS4-HMACSHA256&X-Amz-Credential=AKIAJJIENTAPKHZMIPXQ%2F20260326%2Fus-east1%2Fs3%2Faws4_request&X-Amz-Date=20260326T153526Z&X-Amz-Expires=86400&X-AmzSignedHeaders=host&X-AmzSignature=e566cc11139e9b5f7a637211d7d4c9398103a10178af68066d0fce98ee10b431.

Accessed: March 2026.
_______2026. 2025 Urban Water Management Plan Guidebook. Available: water.ca.gov/-/media/DWRWebsite/Web-Pages/Programs/Water-Use-And-Efficiency/Urban-Water-Use-Efficiency/UrbanWater-Management-Plans/Final-2025-UWMP-Guidebook/Final-2025-UWMP-GuidebookAccessible.pdf. Accessed: February 2026.Indio Subbasin Groundwater Sustainability Agencies (GSAs). 2021. 2022 Indio Subbasin Water Management Plan Update: Sustainable Groundwater Management Act Alternative Plan. Available: https://www.indiosubbasinsgma.org/alternative-planupdate/. Accessed: February 2026.

Mission Creek Subbasin Management Committee. 2021. 2022 Mission Creek Subbasin Alternative Plan Update. Available: http://www.missioncreeksubbasinsgma.org/alternative-plan-update/.

Accessed: February 2026.

Item 19.

Attachment A. Coachella Valley Water District Landscape and Irrigation Design Criteria Ordinance

Item 19.

Attachment B. Legal Authority

Item 19.

Coachella Water Authority

Item 19.

Coachella Water Authority
Water Shortage Contingency Plan
Final Draft
prepared on behalf of
Coachella Water Authority
53462 Enterprise Way
Coachella, California 92236
prepared by
Rincon Consultants, Inc.
2060 Knoll Drive
Ventura, California 93003
May 11, 2026

Item 19.

Water Shortage Contingency Plan
i
Table of Contents
1 Introduction .........................................................................................................................................1 2 Water Supply Reliability Analysis .......................................................................................................2 3 Annual Water Supply and Demand Assessment Procedures ............................................................3

3.1 Decision Making Process .........................................................................................................3

3.2 Data and Methodologies ..........................................................................................................4

3.2.1 Evaluation Criteria ........................................................................................................4

3.2.2 Water Supply ................................................................................................................4

3.2.3 Current Year Unconstrained Customer Demand .........................................................4

3.2.4 Current Year Supply .....................................................................................................4

3.2.5 Infrastructure Considerations .......................................................................................4

3.2.6 Other Factors................................................................................................................4 4 Six Standard Water Shortage Levels .................................................................................................4 5 Shortage Response Actions ...............................................................................................................5

5.1 Supply Augmentation ...............................................................................................................5

5.2 Demand Reduction Actions and Mandatory Use Restrictions ..................................................6

5.3 Operational Changes .............................................................................................................10

5.4 Additional Mandatory Restrictions..........................................................................................10

5.5 Emergency Response Plan....................................................................................................10

5.6 Seismic Risk Assessment and Mitigation Plan ......................................................................10

5.7 Shortage Response Action Effectiveness ..............................................................................11 6 Communication Protocols.................................................................................................................11 7 Compliance and Enforcement ..........................................................................................................13

7.1 Penalties.................................................................................................................................13

7.2 Appeals and Exemption Process ...........................................................................................13 8 Legal Authorities ...............................................................................................................................13

8.1 Declaration of Water Shortage...............................................................................................13

8.2 Proclamation of Local Emergency .........................................................................................14 9 Financial Consequences of WSCP Implementation.........................................................................14

9.1 Financial Impacts and Mitigation Actions ...............................................................................14

9.2 Reporting Cost of Compliance with Excessive Water Use Prohibition During Drought Emergency .............................................................................................................................15 10 Monitoring and Reporting .................................................................................................................15 11 WSCP Refinement Procedures ........................................................................................................15 12 Special Water Feature Distinction ....................................................................................................16 13 Plan Adoption, Submittal, and Availability ........................................................................................16 14 References .......................................................................................................................................17

Item 19.

Water Shortage Contingency Plan
ii
Tables
Table 1. Annual Assessment Decision-Making Process........................................................................3 Table 2. Water Shortage Contingency Plan Levels ...............................................................................5 Table 3. Supply Augmentation and Other Actions...................................................................................6 Table 4. Demand Reduction Actions ......................................................................................................7 Table 5. Communication Plan Outline..................................................................................................12 Table 6. Enforcement Actions ..............................................................................................................13 Table 7. City and County Coordination on Proclamation of Emergencies............................................14 Attachments
Attachment A: City of Coachella Municipal Code Section 13.03 Attachment B: Coachella Valley Association of Governments Landscape Ordinance

Item 19.

Water Shortage Contingency Plan
1 1 Introduction
This Water Shortage Contingency Plan (WSCP) describes how the Coachella Water Authority (CWA) intends to predict and respond to foreseeable and unforeseeable water shortages, which occur when available water supplies are reduced to a level that cannot support typical demand at any given time. The WSCP serves as a planning document to guide the City Council, staff, and the public by identifying response actions that allow for efficient and accountable management of water shortages with predictability and transparency. While the WSCP does not provide absolute direction, it offers a range of response options to address varying water shortage conditions.

Water shortages may be triggered by hydrologic limitations in supply—such as prolonged periods of below-normal precipitation and runoff—failures or limitations in supply or treatment infrastructure, or a combination of both. Hydrologic or drought-related shortages typically develop and subside gradually, whereas infrastructure-related shortages tend to occur more suddenly and unpredictably. Water supplies may be interrupted or substantially reduced due to events such as drought, earthquakes that damage delivery or storage facilities, regional power outages, or toxic spills that affect water quality.

This WSCP describes the following:

1. Water Supply Reliability Analysis. Summarizes the CWA’s water supply analysis and reliability and identifies the key issues that may trigger a shortage condition.

2. Annual Water Supply and Demand Assessment Procedures. Describes the key data inputs, evaluation criteria, and methodology for assessing the system’s reliability for the coming year and the steps to formally declare any water shortage levels and response actions.

3. Six Standard Shortage Stages. Establishes water shortage levels to clearly identify and prepare for shortages.

4. Shortage Response Actions. Describes the response actions that may be implemented or considered for each stage to reduce gaps between supply and demand as well as minimize social and economic impacts to the community.

5. Communication Protocols. Describes communication protocols under each stage to ensure customers, the public, and City Council are informed of shortage conditions and requirements.

6. Compliance and Enforcement. Defines compliance and enforcement actions available to administer demand reductions.

7. Legal Authority. Lists the legal documents that grant CWA the authority to declare a water shortage and implement and enforce response actions.

8. Financial Consequences of WSCP Implementation. Describes the anticipated financial impact of implementing water shortage stages and identifies mitigation strategies to offset financial burdens.

9. Monitoring and Reporting. Summarizes the monitoring and reporting techniques to evaluate the effectiveness of shortage response actions and overall WSCP implementation. Results are used to determine if additional shortage response actions should be activated or if efforts are successful and response actions should be reduced.

10. WSCP Refinement Procedures. Describes the factors that may trigger updates to the WSCP and outlines how to complete an update.

11. Special Water Features Distinctions. Identifies exemptions for ponds, lakes, fountains, pools, and spas, etc.

12. Plan Adoption, Submittal, and Availability. Describes the process for the WSCP adoption, submittal, and availability after each revision.

Item 19.

Water Shortage Contingency Plan
2 CWA is one of six agencies in the Coachella Valley participating in the development of a 2025 Regional Urban Water Management Plan (RUWMP). Each agency is adopting the RUWMP to meet its reporting requirements under the Urban Water Management Planning Act (UWMP Act). Each agency is also adopting its own WSCP. The agencies have sought to align their shortage levels and shortage response actions to the extent possible, with the intent of reducing confusion for neighboring customers during a shortage. This document is compliant with the California Water Code (CWC) Section 10632 and incorporated guidance from the California Department of Water Resources (DWR) 2025 UWMP Guidebook (DWR 2026).
2 Water Supply Reliability Analysis
This section provides a summary of the supply reliability analysis presented in Chapter 4 of the RUWMP and highlights key issues that could create a shortage condition.

The water supplies of the agencies in the Coachella Valley generally have a high degree of reliability.

The RUWMP participating agencies meet most of their urban demands with groundwater produced from the Indio and Mission Creek Subbasins of the Coachella Valley Groundwater Basin. The groundwater basin is large enough to provide storage that allows continued production during dry periods. Because production exceeds the recharge provided by precipitation and return flows, the agencies use imported water to recharge the groundwater basin. These sources of imported water for recharge include:
• Colorado River water that CVWD receives primarily through the Coachella Canal for replenishment at Thomas E. Levy Groundwater Replenishment Facility (GRF) and Palm Desert GRF, and a small portion through Metropolitan Water District of Southern California’s (MWD’s) Colorado River Aqueduct for replenishment at Whitewater River GRF.
• State Water Project (SWP) water that CVWD and Desert Water Agency (DWA) have rights to receive. Because the SWP infrastructure does not extend into the Coachella Valley, CVWD and DWA have an exchange agreement with MWD to receive Colorado River water from its Colorado River Aqueduct to for replenishment at Whitewater River GRF. In return, MWD receives SWP water through the SWP infrastructure based on the annual SWP allocations to CVWD and DWA.

Drought conditions are not expected to affect CVWD’s Colorado River water supply due to the agency’s high priority allocation. Colorado River water is not a direct source of urban water supply; it is used for groundwater replenishment and non-potable irrigation uses. If a reduction in Colorado River water supply occurred, CVWD would initially reduce deliveries to groundwater replenishment projects. Subsequent reductions in delivery would be applied by the CVWD Board of Directors as provided in CVWD’s Canal Water Shortage Contingency Plan, Chapter 3.10, Article XII of CVWD’s administrative code (CVWD 2026).

Drought conditions in the Sierra Nevada would influence the SWP water allocation; thus reducing the SWP Exchange water received by CVWD and DWA. Reductions in SWP allocations have occurred during prior droughts and SWP reliability is forecasted by DWR to continue declining with future climate changes (DWR 2025). SWP exchange water is used for replenishment of the Indio and Mission Creek Subbasins and is not a direct source of urban water supply. Consequently, water use restrictions due to drought involving the SWP water supply would likely be implemented only during a prolonged drought.

During dry periods when less imported water is available, groundwater production will exceed the amount of recharge, and the volume of groundwater in storage will be reduced. However, these reductions can be reversed in wet years when additional imported water is available. The Coachella Valley Groundwater Basin is a large basin which provides a buffer during dry periods, thus allowing the agencies to develop long-term plans and programs to manage regional water supplies. The Indio Subbasin Alternative Plan Update (Indio Subbasin GSAs 2021) and Mission Creek Subbasin Alternative Plan Update (Mission Creek Subbasin Management Committee 2021) both address groundwater sustainability considering hydrologic variability of replenishment supplies and other local water sources.

Item 19.

Water Shortage Contingency Plan
3 The reliability analysis for CWA is presented in Section 5.7 of CWA’s chapter of the RUWMP. Although that analysis demonstrates that the region’s urban water supply is reliable, there are potential issues that could create a shortage condition. These include:
• An extended drought more severe than historic events, possibly exacerbated by climate change. • A natural disaster or a malevolent act that leads to prolonged disruption of imported water delivery from the Colorado River or the SWP.
• Reductions in imported water supply due to environmental restrictions related to endangered species or habitat protection.
• Identification of a currently unregulated contaminant that has widespread effects on the region’s groundwater supply.
• Regulatory mandates to reduce water use.

Water shortage contingency planning provides a way to plan for these risks and anticipate actions that can be implemented to manage the impacts. This plan describes how CWA intends to respond to such shortage events. The responses have been aligned with those of other RUWMP participating agencies to the extent possible.
3 Annual Water Supply and Demand Assessment Procedures
CWA is required to prepare an Annual Water Supply and Demand Assessment (Annual Assessment) and submit it to DWR each year. The Annual Assessment is intended to meet requirements of Water Code Section 10632.1 and present an assessment of the likelihood of a water shortage occurring during the next 12 months. This section of the WSCP outlines the procedures that CWA will use to prepare the Annual Assessment. The procedures defined in this section will allow CWA to follow a consistent annual procedure for making the determination of whether to activate the WSCP.

3.1 Decision Making Process
DWR requires a defined decision-making process for performing the Annual Assessment. The process and anticipated timeline are presented in Table 1.

Table 1. Annual Assessment Decision-Making Process
Anticipated Timeline
of Each Year Activities
February CWA staff review available data related to anticipated supplies and demands.

March The six agencies participating in the Coachella Valley RUWMP review the data and determine whether a consistent region-wide determination on water supply reliability can be made. If needed, individual agencies may elect to activate their WSCP at different shortage levels than other participating agencies.

April CWA staff will make a determination whether to recommend implementation of shortage response actions.

May If shortage response actions are to be implemented, CWA management will present the recommendation to the governing board for consideration.

If the governing board decides to implement the WSCP, it will provide public notice of a hearing to consider changes in the implementation of the shortage response actions.

June CWA staff prepares the Annual Assessment and submits to DWR by July 1.

Item 19.

Water Shortage Contingency Plan
4 3.2 Data and Methodologies
This section describes the data and methodologies that will be used to evaluate water system reliability for the Annual Assessment.

3.2.1 Evaluation Criteria
CWA will rely on locally applicable criteria for each annual assessment. These criteria will include the findings of the annual reports prepared for the Indio Subbasin and the Mission Creek Subbasin for compliance with the Sustainable Groundwater Management Act. Findings from the annual Engineer’s Report on Water Supply and Replenishment Assessment will also be incorporated.

3.2.2 Water Supply
CWA’s anticipated supplies will be quantified for the near-term future, and descriptive text will be used to note any anticipated reductions in supply.

3.2.3 Current Year Unconstrained Customer Demand
CWA will prepare an estimate of unconstrained demand (as the term is used in Water Code Section 10632(a)(2)(B)(i)). The estimated demand will be calculated using the demand projection approach described in Section 4 of each agency’s chapter of the RUWMP, in combination with updated data for connections, climate, changes in land use, and recent water usage history.

3.2.4 Current Year Supply
CWA will describe the anticipated use of water supplies for the coming year, with the anticipation that the following year will be dry. The supplies will be characterized in a manner consistent with the RUWMP, in combination with updated data for climate and recent observations.

3.2.5 Infrastructure Considerations
CWA will describe any potential infrastructure constraints on the ability to deliver adequate supplies to meet expected customer demands in the coming year. CWA will verify that its system of wells, pipelines, pump stations, and storage tanks have adequate capacity to deliver the anticipated demands. CWA will describe any anticipated capital projects that are intended to address constraints in production, treatment, or distribution.

3.2.6 Other Factors
CWA will describe any specific locally applicable factors that could influence or disrupt supplies. CWA will also describe unique local considerations that are considered as part of the Annual Assessment. 4 Six Standard Water Shortage Levels
The RUWMP participating agencies have elected to use the six standard shortage levels included in guidance documents prepared by DWR. The six standard water shortage levels correspond to progressively increasing estimated shortage conditions (up to 10-, 20-, 30-, 40-, 50- percent, and greater than 50-percent shortage compared to the normal reliability condition). These levels are identified in Table 2.

Item 19.

Water Shortage Contingency Plan
5 Table 2. Water Shortage Contingency Plan Levels
Shortage
Level
Percent Shortage
Range Description
Narrative Summary of Shortage
Response Actions
1 Up to 10% Normal water supplies Mandatory prohibitions defined by the state, ongoing rebate programs
2 Up to 20% Slightly limited water
supplies
Outdoor water use restrictions on time of
day, increased water waste patrols
3 Up to 30% Moderately limited
water supplies
Outdoor water use restrictions on days per
week, restrictions on filling swimming pools
4 Up to 40% Limited water supplies Limits on new landscaping, expanded public information campaign
5 Up to 50% Significantly limited
water supplies
Limits on watering of parks or school
grounds
6 Greater than 50% Severe shortage or
catastrophic incident
No potable water use for outdoor purposes
Each level in Table 2 represents an anticipated reduction in the supplies that would normally be available to CWA. These supply reductions could be the result of a variety of potential causes including natural forces, system component failure or interruption, regulatory actions, contamination, or any combination of factors. CWA may need to activate shortage levels across its entire service area or within certain areas that are impacted by an event.

The levels involve voluntary and mandatory conservation measures and restrictions, depending on the causes, severity, and anticipated duration of the water supply shortage. The locally appropriate shortage response actions that would be taken at each level to address the resulting gap between supplies and demands are described in the following section.
5 Shortage Response Actions
This section describes the shortage response actions that would be taken by CWA at each shortage level.

These actions have been grouped into categories including:
• Supply Augmentation Actions
• Demand Reduction Actions and Mandatory Use Restrictions • Operational Changes

5.1 Supply Augmentation
For long-range planning, CWA continues to evaluate opportunities for transfers, exchanges, and other purchases of imported water to increase supply reliability. CVWD and DWA collaborate to replenish the Indio and Mission Creek Subbasins with imported water, creating a stored supply that can be used for emergencies or longer-term shortages. CVWD and DWA are also making investments in increasing supply reliability from the SWP through the Delta Conveyance Facility and in securing new supplies like Sites Reservoir.

Additionally, the RUWMP participating agencies continue to implement water conservation measures and increase use of recycled water usage to reduce groundwater demand. CWA’s demand management programs are described in CWA’s chapter of the RUWMP.

In their WSCP, agencies have the option of identifying short-term supply augmentation actions that would be taken during a shortage. These actions are intended to be separate from the long-range planning efforts to sustainably manage the groundwater basin. The short-term supply augmentation measures that could be implemented are presented in Table 3.

Item 19.

Water Shortage Contingency Plan
6 Table 3. Supply Augmentation and Other Actions
Shortage
Level
Supply
Augmentation
Methods and
Other Actions by
Water Supplier
How much is this going to
reduce the shortage gap?
Additional Explanation or
Reference
Volume of
Percentage
Shortage Gap
Reduction
Value
1 - 6 Exchanges Volume Medium Emergency connections with neighboring agencies could be
activated or constructed to help
exchange water with adjoining
systems.
5 Other Actions Volume Medium In areas where recycled water supply is available, customers
could be mandated to use recycled
water and cease use of potable
water.
6 Other Actions Volume Medium Additional non-potable water sources such as new shallow
groundwater wells.

5.2 Demand Reduction Actions and Mandatory Use Restrictions The RUWMP participating agencies have aligned their demand reduction actions to the greatest extent possible, while allowing each agency to tailor its response to the unique characteristics of its service area.

The agencies conducted public workshops to gather input on actions that could be taken during a water shortage. The input from stakeholders was used to select and prioritize actions that reflected the values of the community. Key elements of the input included:
• The importance of recognizing the conservation efforts that many customers have already made and not imposing requirements for all customers to meet the same percentage reduction in water use.
• The importance of involving Homeowner Associations (HOAs) to help implement and communicate response actions to individuals.
• The benefits of tiered rates in allowing customers to pay less for their basic efficient use and more for excessive use.
• A balanced program should include incentives (such as expanded rebates for turfgrass removal) as well as penalties (such as drought rates).
• A range of approaches is needed to communicate with customers and end users, including social media, web sites, bill inserts, presentations, and virtual tours, ideally in multiple languages.

The demand reduction actions that could be implemented at each shortage level are shown in Table 4.

During a shortage, CWA may implement some or all of the actions as needed, depending on actual conditions. As described in Section 5.9 of CWA’s chapter of the RUWMP, CWA implements demand management measures (DMMs) to increase water use efficiency. The RUWMP includes description of water waste prevention ordinances, metering, conservation pricing, and public education and outreach programs for conservation.

CWA prohibits wasting water as cited in the City of Coachella Municipal Code Chapter

13.03.044(Attachment A) and adopted the Coachella Valley Association of Governments (CVAG) Water Efficient Landscape Ordinance No. 1302.5 (Attachment B).

Item 19.

Water Shortage Contingency Plan
7 Table 4. Demand Reduction Actions
Shortage
Level ID Demand Reduction Actions
How much is this going to
reduce the shortage gap?
Penalty or
Enforcement
Volume or
Percentage
Shortage Gap
Reduction
Value
1 1.1 Applying any water to outdoor landscapes in a manner that causes runoff such that water flows onto adjacent property, non-irrigated areas, private and public walkways, roadways, parking lots, or structures is prohibited.

Volume Low No

1.2 Using any water in a fountain or other decorative water feature is prohibited, unless the water recirculates.

Volume Low No

1.3 Applying water to driveways, sidewalks, concrete or asphalt is prohibited unless to address immediate health and safety needs. Reasonable pressure washer or water broom use is permitted.

Volume Low No

1.4 Spray irrigation of outdoor landscapes during and within 48 hours after rainfall of 0.10 inches is prohibited.

Volume Low No

1.5 Using a hose to wash a vehicle, windows, or solar panels is prohibited unless an automatic shut-off nozzle or pressure washer is used.

Volume Low No

1.6 Broken sprinklers shall be repaired within five business days of notification by agency, and leaks shall be repaired as soon as practical.

Volume Low No

1.7 Draining and refilling of private swimming pools is discouraged, unless necessary for health and safety or leak repair.

Volume Low No

1.8 Hotels will provide guests the option of choosing not to have towels and linens laundered daily.

Volume Low No

1.9 Agency shall discourage overseeding. Volume Low No

1.10 Agency shall provide rebates for landscape efficiency. Volume High No

1.11 Agency shall offer water use surveys/audits. Volume Medium No

1.12 Agency shall provide rebates on plumbing fixtures and devices. Volume Medium No

Item 19.

Water Shortage Contingency Plan
8 Shortage
Level ID Demand Reduction Actions
How much is this going to
reduce the shortage gap?
Penalty or
Enforcement
Volume or
Percentage
Shortage Gap
Reduction
Value
2 2.1 Outdoor water use is prohibited during daylight hours for spray irrigation except for leak checks or with an agency approved conservation alternative plan.

Volume Medium Yes

2.2 Restaurants can serve water only on request. Volume Low Yes

2.3 Agency shall encourage use of non-potable water for construction, if available.

Volume Low No

2.4 Agency shall actively discourage overseeding. Volume Medium No

2.5 Agency shall reduce outdoor water budget by 10% Volume Medium Yes

2.6 Agency shall expand public information campaign. Volume Medium No

2.7 Agency shall increase water waste patrols. Volume Medium Yes

2.8 Agency shall reduce hydrant and dead-end line flushing. Volume Low No 3 3.1 Outdoor water use is allowed only three days a week for spray irrigation (Monday, Wednesday, and Friday).

Volume High Yes

3.2 Drip or subterranean irrigation is allowed seven days per week, during nondaylight hours.Volume Medium Yes

3.3 Commercial nurseries are to use water only on alternate days during nondaylight hours for outside operations.Volume Low Yes

3.4 Decorative ponds, non-irrigation system golf course water hazards, fountains, and other waterscape features are not to be filled or replenished.

Volume Low Yes

3.5 No filling of swimming pools or landscaping ponds unless necessary for health and safety or leak repair.

Volume Low Yes

3.6 Commercial car washes must use recycled water or recirculating water systems.

Volume Medium Yes

3.7 Spray irrigation of medians and parkways is prohibited. Volume Medium Yes

3.8 Agency shall encourage counties, cities, Homeowners Associations (HOAs) and other enforcement agencies to suspend code enforcement and fines for brown turfgrass areas and to otherwise comply with new State laws regarding limitations on such enforcement.

Volume Low No

Item 19.

Water Shortage Contingency Plan
9 Shortage
Level ID Demand Reduction Actions
How much is this going to
reduce the shortage gap?
Penalty or
Enforcement
Volume or
Percentage
Shortage Gap
Reduction
Value

3.9 Agency shall strengthen customer billing messages with use comparisons. Volume Medium No

3.10 Agency shall implement water use audits targeted to key customers to ensure compliance with directives.

Volume Medium No

3.11 Agency shall expand rebate programs. Volume Medium No 4 4.1 Turfgrass landscapes may not be watered except where subterranean or non-potable water systems are used.

Volume High Yes

4.2 Agency shall implement or modify drought rate surcharge. Volume High Yes

4.3 Agency shall reduce outdoor water budget by up to 25%. Volume High Yes

4.4 Agency shall expand public information campaign. Volume Medium No 5 5.1 Watering turfgrass is prohibited. Volume High Yes

5.2 The use of misting systems is prohibited. Volume Medium Yes

5.3 Turfgrass at parks and school grounds are to be watered with recycled water, if available, or not at all.

Volume Medium Yes

5.4 Golf course greens and tees may be watered no more than two times per week during non-daylight hours with recycled water, or not at all.

Volume Medium Yes

5.5 Trees, desert plants and shrubs may be watered only with drip, subterranean or non-adjustable bubbler irrigation systems during non-daylight hours.

Volume High Yes

5.6 Agency shall reduce outdoor water budget by up to 50%. Volume High Yes

5.7 Agency shall impose moratorium or net zero demand on new connections. Volume N/A Yes

Item 19.

Water Shortage Contingency Plan
10 5.3 Operational Changes
CWA has identified potential operational changes that could be made to help address a short-term gap between demands and available supplies. These include improved monitoring and analysis of customer water usage, reductions in flushing of hydrants and dead-end lines, and use of emergency connections with neighboring water agencies. Some of the potential actions are included in Table 4. CWA may also expedite planned system improvement projects that include reduction in water loss (e.g., replacement of water mains that are experiencing higher rates of leaks and breaks).

5.4 Additional Mandatory Restrictions
CWA has identified a series of restrictions that could be implemented at different shortage levels. These restrictions are included in the demand reduction actions in Table 4.

5.5 Emergency Response Plan
The Water Code requires that an agency’s WSCP address catastrophic water shortages and plans to address them. This information can be addressed in the agency’s Emergency Response Plan (ERP).

CWA’s ERP contains sensitive information related to potential vulnerabilities or impacts of natural disasters or malevolent acts. Therefore, these documents are not typically made publicly available.

CWA’s ERP outlines specific disaster-related procedures to guide staff in responding efficiently to catastrophic interruptions of water supply.

Five of the RUWMP participating agencies collaborate on planning efforts, including emergency response, through the Coachella Valley Regional Water Management Group (CVRWMG). In addition, CVWD, DWA, Indio, and MSWD are members of the California Water/Wastewater Agency Response Network (CalWARN), which supports and promotes emergency preparedness. More information about CalWARN is available at their web site at www.calwarn.org.

The region’s imported water supplies from the Colorado River and the SWP could be disrupted by an earthquake. Because the agencies use local groundwater to meet urban demands, the agencies could continue to meet short term urban demands with groundwater production. The agencies have installed backup generators at key water production facilities to allow continued operation during a power outage.

DWR has plans in place to make emergency repairs to the SWP, and MWD has plans in place to make emergency repairs to the CRA. CVWD has plans to make emergency repairs to the Coachella Canal.

CVWD staff receives regular Incident Command System (ICS) training through the Federal Emergency Management Agency (FEMA), and drills are conducted routinely. CVWD remotely monitors the status of most key facilities at CVWD headquarters, which enables it to detect areas affected by disasters.

RUWMP participating agencies also participate in ICS training and regularly monitor key water facilities remotely.

If imported water supplies were disrupted for an extended period, it would reduce the water supply available for replenishment of the groundwater basin. It could also lead to increased groundwater pumping by non-urban users who normally use imported canal water. CWA would implement levels of this WSCP as needed if pumping needed to be decreased while imported water supplies were interrupted.

5.6 Seismic Risk Assessment and Mitigation Plan
Water Code Section 10632.5 requires the agencies to assess seismic risk to water supplies as part of their WSCP. The code also requires a mitigation plan for managing seismic risks. In lieu of conducting their own seismic risk assessment, which can be a lengthy process, suppliers can comply with the Water Code requirement by submitting the relevant local hazard mitigation plan or multi-hazard mitigation plan.

CWA is a participant in the Riverside County Multi-Jurisdiction Local Hazard Mitigation Plan (MJLHMP) which was updated in 2025 (Riverside County 2023). Riverside County MJLHMP includes an assessment of the region’s vulnerability to a broad range of hazards, including earthquakes. It also describes mitigation strategies and actions to reduce the impacts of a seismic event. The RUWMP

Item 19.

Water Shortage Contingency Plan
11 participating agencies continue to include seismic risk assessment in their planning process for system improvements.

5.7 Shortage Response Action Effectiveness
As a standard operating procedure, water is tracked through the production, distribution, and billing systems. During water shortage conditions, water use can be measured in comparison to what is considered to be normal year demand (i.e., current customer base with approximately average rainfall), or in reference to a specific base year as may be dictated by Statewide requirements.

The effectiveness of actions initiated at each shortage response is challenging to measure and can vary significantly. Effectiveness is also impacted by successful communication and outreach efforts. It is also difficult to assess the effectiveness of each activity separately as each stage implements several activities at once. For the purpose of WSCP implementation, it is assumed that the upper end of the water savings would come from the use of multiple demand reduction actions in a stage. Reduction in the shortage gap for Stages 2-6 assume all measures in the previous stage(s) are implemented and those savings are counted toward the total reduction in the shortage gap. 6 Communication Protocols
Timely and effective communication is a key element of WSCP implementation. CWA will need to inform customers, the general public, and other government entities of WSCP actions taken during a water shortage (either one determined by the Annual Assessment, an emergency, catastrophic, or other event).

An overview of planned communication approaches is provided in Table 5. These protocols have been aligned between the RUWMP participating agencies where possible, but some are tailored to the needs of CWA’s service area. CWA will adjust its communication strategy as needed to address issues that are impacting the entire service area or limited areas.

Item 19.

Water Shortage Contingency Plan
12 Table 5. Communication Plan Outline
At all times
Level 1
Up to 10% Voluntary
Conservation
Level 2
Up to 20% Mandatory
Conservation
Levels 3 and 4
Up to 30% or 40%
Mandatory Conservation
Levels 5 and 6
Up to 50% or Over 50%
Mandatory Conservation
Standard outreach efforts
in effect (media relations,
social media, website)
Update message platform
to reflect conditions, District
response, and needed
actions from public
Update campaign and
messages to generate
immediate
actions/behaviors by
public, include information
on enforcement actions
Update campaign and
messages to raise
awareness for more severe
water-saving
actions/behaviors by public,
highlight need for reduced
outdoor water use
Update campaign and
messages to reflect
extreme or emergency
condition and likely need to
focus water use on
health/safety needs
Promote ongoing Water
Use Efficiency (WUE)
programs and tools and
partnerships designed to
achieve long-term water
management goals
Announce status change to
key stakeholders and
general public (e.g., News
release, social media, etc.)
Announce status change to
key stakeholders and
general public (e.g., News
release, social media, etc.)
Announce status change to
key stakeholders and
general public (e.g., News
release, social media, etc.)
Announce emergency
status to key stakeholders
and general public (e.g.,
News release, social
media, etc.)
Standard coordination with
MWD and regional partners
Include increased
conservation messages on
website and in standard
outreach efforts; provide
regular condition updates
to stakeholders/media
Supplement Level 1
activities with additional
tactics as needed; provide
regular condition updates
to stakeholders/media
Supplement Level 2
outreach with additional
tactics as needed; provide
regular updates to
stakeholders/media on
conditions
Supplement Level 3-4
outreach with additional
tactics as needed; provide
regular condition updates
to stakeholders/media on
conditions
Board reports on public
communication and wateruse efficiency outreach
activities at least annually.

Enhance promotion of
ongoing WUE
programs/tools; deploy
targeted advertising
Conduct issue briefings
with elected officials, other
key civic and business
leaders
Conduct specialized
outreach to HOAs and local
organizations
Suspend promotion of
long-term WUE
programs/tools to focus on
imminent needs
Initiate regular Board
reports on campaign efforts
Increase promotion of
ongoing WUE
programs/tools
Promote available water
assistance resources for
vulnerable populations;
specialized outreach to
impacted industries
Continue enhanced
coordination with neighbor
agencies and
local/state/federal policy
makers as needed (e.g.
daily or weekly briefings or
email updates, etc.)

Item 19.

Water Shortage Contingency Plan
13 7 Compliance and Enforcement
This section describes how CWA will ensure compliance with and enforce provisions of the WSCP. The RUWMP participating agencies have worked together to align their policies where possible, but each agency implements its compliance and enforcement actions within its service area.

7.1 Penalties
The penalties that could be imposed for non-compliance are summarized in Table 6.

Table 6.Enforcement Actions
Water
Shortage
Level
First
Violation
Second
Violation
(within 12
months)
Third Violation
(within 12
months)
Subsequent
Violations
Additional
Information
1 Written
warning
$15
administrative
fee
$50
administrative
fee
$100
administrative
fee
2 Written
warning
$100
administrative
fee
$150
administrative
fee
$300
administrative
fee
3 Written
warning
$150
administrative
fee
$300
administrative
fee
$500
administrative
fee
4 - 6 $300
administrative
fee
$500
administrative
fee
$500
administrative
fee
$500
administrative
fee

7.2 Appeals and Exemption Process
This section describes the appeals and exemption processes.

Any water user violating the regulations and restrictions on water use may receive a written notice for the violation. The water user shall have seven days from receipt of the notice to submit a written request for a hearing. If no hearing is requested, or at the hearing it is determined that the water user has committed a violation, a civil penalty may be levied.

The government codes and ordinances that are used to implement these policies and processes are discussed in Section 7.
8 Legal Authorities
This section describes the legal authorities that CWA relies upon to implement the shortage response actions and the associated enforcement actions.

Chapter 13.03 of the Coachella Municipal Code provides the legal authority to enforce water service conditions, including the WSCP. A copy of the legal authority is included in Attachment A.

8.1 Declaration of Water Shortage
In accordance with Water Code Chapter 3 (commencing with Section 350) of Division 1 general provisions regarding water shortage emergencies, CWA shall declare a water shortage emergency in the event of a catastrophic interruption in supply.

Item 19.

Water Shortage Contingency Plan
14 8.2 Proclamation of Local Emergency
CWA shall coordinate with any city or county within which it provides water supply services for the possible proclamation of a local emergency under California Government Code, California Emergency Services Act (Article 2, Section 8558). Table 7 contains a list of contacts for all cities or counties for which the RUWMP participating agencies provide service in the WSCP. Along with developed coordination protocols, this can facilitate compliance with this section of the Water Code in the event of a local emergency as defined in subpart (c) of Government Code Section 8558.

Table 7. City and County Coordination on Proclamation of Emergencies City or County Contact CVWD CWA DWA Indio MDMWC MSWD
Imperial County Office of Emergency
Services
X
Riverside County Emergency
Management
Department

X X X X X X
City of La Quinta Emergency
Management Division
X X X
City of Indio Emergency Services
Coordinator
X X X
City of Coachella Emergency Services
Coordinator
X X X
City of Palm Desert Emergency Services
Coordinator
X
City of Cathedral City Emergency Manager X X
City of Indian Wells Emergency Services
Coordinator
X
City of Rancho
Mirage
Emergency Services
Coordinator
X
City of Palm Springs Emergency
Management
Coordinator
X X
City of Desert Hot
Springs
Emergency Services
Coordinator
X X
9 Financial Consequences of WSCP Implementation
This section describes the anticipated financial consequences to CWA of implementing the WSCP. The description includes potential reductions in revenue due to lower water sales and increased expenses associated with implementing the shortage response actions.

9.1 Financial Impacts and Mitigation Actions
Potential financial impacts of implementing the WSCP could include:
• Reduced revenue from reduced water use
• Increased staff costs for tracking, reporting, patrolling, and enforcing restrictions • Economic impacts associated with water-dependent businesses in the service area Potential mitigation measures include:
• Triggering of drought rate structures or surcharges

Item 19.

Water Shortage Contingency Plan
15 • Using financial reserves
• Reducing operation and maintenance expenses (expenses related to source of supply and pumping will fall due to reduced water production)
• Deferring capital improvement projects
• Reducing future projected operation and maintenance expenses • Increasing fixed readiness-to-serve charge
• Increasing commodity charge and water adjustment rates to cover revenue shortfalls • Seeking alternative source of funding, such as state or federal grants or loans • Other financial management mechanisms
CWA will monitor financial conditions during a water shortage and take appropriate actions as needed.

CWA maintains financial reserves that can be used to continue operations during a period of reduced water sales. CWA has the ability to increase water rates or implement surcharges or penalties to increase revenues from water sales.

9.2 Reporting Cost of Compliance with Excessive Water Use Prohibition During Drought Emergency
To ensure customers comply with the restrictions implemented in a water shortage emergency, additional costs may be incurred to monitor and enforce response actions. The incurred cost may vary depending on the shortage stage and duration of the water shortage emergency. The cost of compliance may be tracked when a shortage is declared. CWA may track staff time and resources used to implement the WSCP, including reduced revenue, implementing and enforcing shortage response actions, and communication and outreach efforts.
10 Monitoring and Reporting
This section describes how CWA will monitor and report on implementation of the WSCP. CWA will gather data on key water use metrics and use the data to evaluate the effectiveness of response actions in achieving their intended water use reduction purposes. CWA will also gather data on customer compliance to evaluate the effectiveness of enforcement actions. CWA will gather and report data at frequencies adequate to meet reporting requirements established by the State Water Resources Control Board and other government agencies, as needed.

CWA will monitor water use by customers using billing systems and operational control systems to monitor production and consumption. Each customer is metered, and billing records will be compiled and used to observe trends in water consumption. Each groundwater well and water connection point is also metered, and production records will be used to observe trends in water production. Levels in reservoirs can be monitored using the operational control systems to help identify potential high usage or leaks.

CWA staff may also perform field visits and record observations to monitor water use and identify potential issues for follow-up.

For agencies that have budget-based rates, the consumption by customers will be compared to the water budgets to determine effectiveness of response actions. For agencies without defined water budgets for each customer, the consumption records will be aggregated by customer class to evaluate response actions and identify potential additional measures.
11 WSCP Refinement Procedures
CWA will monitor the implementation of this plan to evaluate its effectiveness as an adaptive management tool. The monitoring and reporting program described in Section 9 will provide information on the effectiveness of the shortage response actions during any shortage levels that may be invoked. If CWA determines that the shortage response actions are not effective in producing the desired results,

Item 19.

Water Shortage Contingency Plan
16 CWA will initiate a process to refine the WSCP. CWA will consider the addition of new shortage response actions, or changing the levels when shortage response actions are implemented. Suggestions for refinements will be collected from agency staff, customers, industry experts, and the general public. The RUWMP participating agencies will share data and suggestions for refinement to identify opportunities to increase the effectiveness of the WSCP while maintaining alignment with other agencies in the region when possible.
12 Special Water Feature Distinction
The RUWMP participating agencies have distinguished swimming pools and spas as recreational water features, while non-pool and non-spa water features are considered decorative water features. This distinction is used in the shortage response actions because decorative water features have the potential to use recycled water, while most pools and spas (recreational water features) use potable water for health and safety considerations. However, this distinction does not apply to the hot mineral spring pools and spas throughout the Desert Hot Springs area; while they are recreational, they also do not rely on potable water.
13 Plan Adoption, Submittal, and Availability
This 2025 WSCP was presented for adoption by the City Council public meeting on June 10, 2026.

Notifications were sent to the cities and counties as described in CWA’s 2025 UWMP. To comply with the notice to the public, the City published notices in the local newspaper at least two weeks in advance with 5 days between publications. The WSCP was also made available prior to the public hearing.

The WSCP was formally adopted on June 10, 2026, by City Council Resolution included in the 2025 UWMP. The WSCP was made available to all staff, customers, and any affected cities, counties, or other members of the public at the City’s office and online within 30 days of the adoption date.

The WSCP was submitted to DWR via the Water Use Efficiency Data Portal at the same time as the 2025 UWMP, but no later than July 1, 2026. A hard copy of the 2025 UWMP and WSCP were submitted to the California State Library within 30 days of adoption. Electronic and/or hard copies were provided to all cities and counties within CWA’s service area within 30 days of adoption.

Based on DWR’s review of the WSCP, CWA will make any amendments in its adopted WSCP, as required and directed by DWR. If CWA revises its WSCP, then an electronic copy of the revised WSCP will be submitted to DWR within 30 days of its adoption.

Item 19.

Water Shortage Contingency Plan
17 14 References
Coachella Valley Water District (CVWD). 2024. 2024 Local Hazard Mitigation Plan Update. Available:
https://www.cvwd.org/611/Local-Hazard-Mitigation-Plan. Accessed: March 2026. ________2026. Coachella Valley Water District Code, Chapter 3.10 Canal Irrigation and Drainage System Rules and Regulations. Available: https://cvwd.district.codes/CVWDC/3.10. Accessed:

March 2026.

Riverside County, Emergency Management Department. 2023. County of Riverside Operational Area, Multi‑Jurisdictional Local Hazard Mitigation Plan (MJLHMP). Revised May 2025. Available:
https://rivcoready.org/sites/g/files/aldnop181/files/users/user41/MJLHMP%205.1.25a.pdf.

Accessed: March 2026.

California Department of Water Resources (DWR). 2025. The State Water Project Draft Delivery Capability Report 2025. Available: https://s3.amazonaws.com/og-production-open-data-cnra892364687672/resources/5d238ff5-899b-4357-8835- 5b043f61f5da/draft_dcr25_mainreport_final_2025-12-17.pdf?X-Amz-Algorithm=AWS4-HMACSHA256&X-Amz-Credential=AKIAJJIENTAPKHZMIPXQ%2F20260326%2Fus-east1%2Fs3%2Faws4_request&X-Amz-Date=20260326T153526Z&X-Amz-Expires=86400&X-AmzSignedHeaders=host&X-AmzSignature=e566cc11139e9b5f7a637211d7d4c9398103a10178af68066d0fce98ee10b431.

Accessed: March 2026.
_______2026. 2025 Urban Water Management Plan Guidebook. Available: water.ca.gov/-/media/DWRWebsite/Web-Pages/Programs/Water-Use-And-Efficiency/Urban-Water-Use-Efficiency/UrbanWater-Management-Plans/Final-2025-UWMP-Guidebook/Final-2025-UWMP-GuidebookAccessible.pdf. Accessed: February 2026.Indio Subbasin Groundwater Sustainability Agencies (GSAs). 2021. 2022 Indio Subbasin Water Management Plan Update: Sustainable Groundwater Management Act Alternative Plan. Available: https://www.indiosubbasinsgma.org/alternative-planupdate/. Accessed: February 2026.

Mission Creek Subbasin Management Committee. 2021. 2022 Mission Creek Subbasin Alternative Plan Update. Available: http://www.missioncreeksubbasinsgma.org/alternative-plan-update/.

Accessed: February 2026.

Item 19.

Attachment A. City of Coachella Municipal Code Section 13.03

Item 19.

Chapter 13.03

WATER SERVICE SYSTEM
Article I
General
Sections:

13.03.010 Department createdSupervision.

13.03.011 Office of general manager
created-Appointment,
duties, compensation.

13.03.012 Application for service
required.

13.03.013 Liability for cost of
changing connection.

13.03.014 Conditions of connection.

13.03.015 Deposits requiredAmount.

13.03.016 Deposits not
interest-bearing.

13.03.017 Application of deposit.

13.03.018 Connection and meter
installation charges.

13.03.019 Monthly charges.

13.03.020 Reading of meters, billing
of charges-When bills
due.

13.03.021 Charge when property
vacant.

13.03.022 Individual connections and
meters requiredExceptions.

13.03.023 Combining readings of
separate meters.

13.03.024 Resale, misuse of water.

13.03.025 Curb cock requiredLiability for damage.

13.03.026 Pressure conditions.

13.03.027 Work requiring changes in
mains and connections.
528.29

13.03.028 Fire service connections.

13.03.029 Water to pass through
meter.

13.03.030 Use of water from
hydrants.

13.03.031 Unauthorized turning
water on or off.

13.03.032 Using water to test pipes
and fixtures.

13.03.033 Boiler connections.

13.03.034 Charge for temporary
connections.

13.03.037 Temporary connections
remote from property.

13.03.038 Special arrangements for
short term temporary
service.

13.03.039 Emergency shut-off
required.

13.03.040 Meter reading periodCharge when meter
defective-To whom bills
mailed.

13.03.041 Meter testingAdjustment of bill.

13.03.042 Shutting off water at
consumer's request.

13.03.043 Shutting off water for
repairs, extensions and
violations.

13.03.044 Wasting water prohibited.

13.03.045 Water emergency
regulations authorized.

13.03.046 Notice of declaration of
emergency.

13.03.047 Charges for turning water
on and off.

13.03.048 Unauthorized turning on
of water.

13.03.049 Removal of
non-registering meters.
(Coachella Supp. No. 16)

Item 19.

13.03.050 Admission of department
employees.

13.03.051 Employees not to make
repairs or be paid money.

13.03.052 Turning water on at
vacant premises-Valve
required on property side
of meter.

13.03.053 Using water without
making application.

13.03.054 Department not liable for
damages inside meter.

13.03.055 Miscellaneous services of
department.

13.03.056 Mains declared property
of department.

13.03.057 Notice before working on
street-Liability for
damages.

13.03.058 Use of fire hydrants.

13.03.059 Manner of opening fire
hydrants.

13.03.060 Taking water away from
fire hydrant.

13.03.061 Obstructing access to
hydrants and water
fixtures.

13.03.062 No rent for meters and
appliances.

13.03.063 Relocating connection.

13.03.064 Meters and appliances
departmentpropertyMaintenance.

13.03.065 Care by consumers to
avoid damage to
department property.

13.03.066 Permission required for
work affecting department
property-Bypasses
prohibited.
{Coachella Supp. No. 16) 528.30

13.03.067 Additional connection
charge when consumer has
not paid cost of main
extension.

13.03.068 Main extensions and
replacement at city cost.

13.03.069 Extensions to
unsubdivided property.

13.03.070 Extension designs--
Specifications.

13.03.071 Cost of extensions to or in
populated areas.

13.03.072 Extensions to areas
subdivided by conveyances.

13.03.073 Main to be installed before
street paved.

13.03.074 Extensions to new
subdivisions.

13.03.075 Alternative procedures for
mains and extensions to
new areas.

13.03.076 Additional regulations
authorized.

13.03.077 Water system connection
charge.

13.03.078---13.03.100 Reserved.

Article II
Fees, Charges and Billing
Sections:

13.03.101 Collection.

13.03.102 Water meter rates and
commodity charge.

13.03.103 Calculation of water bill.

13.03.104 Private fire lines-Inside
city limits.

13.03.105 Private fire lines-Outside
city limits.

13.03.106 Additional charge.

13.03.107 City use.

13.03.108 Construction and
miscellaneous uses.

Item 19.

13.03.109 Standby or partial service.

13.03.110 Application for service.

13.03.111 Application for service--
Single-family domestic.

13.03.112 Noncompliance.

13.03.113 Deposit.

13.03.114 Payment-Enforcement.

13.03.115 Disputed or erroneous
bills.

13.03.116 Lien for delinquent
charges.

13.03.117 Termination of service.

13.03.118 Reconnection.

13.03.119 Restoration of terminated
service.

13.03.120 Annual review of rates;
pass-through of rate
increases.

13.03.121-13.03.140 Reserved.

Article ill
Water Service Connections
Sections:

13.03.141 Inside city limits.

13.03.142 Outside city limits.

13.03.143 Separate connections
required-Exceptions.

13.03.144 Connection.

13.03.145 ViolationDisconnection-Notice.

13.03.146 Subdivision.

13.03.147 Temporary service
connection-Purpose.

13.03.148 Temporary service
connection-Deposit.

13.03.149 Temporary service
connection-Charges.

13.03.150 Temporary service
connection-Duration.
528.31

13.03.151 Temporary service
connection-Conversion to
permanent service
connection.

13.03.152-13.03.170 Reserved.

Sections:

Article IV
Water Mains

13.03.171 Definitions.

13.03.172 Water line contamination.

13.03.173 Property serviced.

13.03.174 Connection to existing
main.

13.03.175 Computation of
construction charge.

13.03.176 Extension-Made at
applicant's expense-Type
of construction.

13.03.177 Extension-ApplicationDeposit-Charges.

13.03.178 Application-Supply-main
charge.

13.03.179 Reimbursement of
construction costs.

13.03.180 Installation in new
subdivisions.

13.03.181 Territory annexed.

13.03.182 Variances.

13.03.183 Distribution system water
pressure.

13.03.184-13.03.200 Reserved.

Article V
Water Meters
Sections:

13.03.201 Water meters.

13.03.202 Monthly readingsSpecial readings.

13.03.203 Bimonthly readingsComputation of billSpecial readings. (Coachella Supp. No. 16)

Item 19.

13.03.204 Separate water meters
required-Exception.

13.03.205 Ownership-Replacement
and repairs.

13.03.206 Meter tests.

13.03.207 Adjustment of bills for
meter error.

13.03.208 Access to water meter.

13.03.209-13.03.240 Reserved.

Sections:

Article VI
Backflow Prevention

13.03.254 Purpose.

13.03.255 Policy.

13.03.256 Definitions.

13.03.257 Cross-connection
prohibited.

13.03.258 Surveys and investigations.

13.03.259 Type of protection
required.

13.03.260 Backflow prevention
assemblies.

13.03.261 Backflow prevention
supervisor.

13.03.262 Administrative procedures.

13.03.263 Water service termination.

13.03.264 Backflow prevention
assembly charge.

13.03.265 Noncompliance.

13.03.266---13.03.269 Reserved.

Article VII
Capital Facilities Expansion Fee and Fund
Sections:

13.03.270 Intent and purpose.

13.03.271 Water facilities expansion
fee.

13.03.272-13.03.285 Reserved.

13.03.286 Policy.
(Coachella Supp. No. 16) 528.32

13.03.287 Funds established.

13.03.288 Appropriations.

13.03.289 Allocation of interest
earnings.

13.03.290 Loans from water funds.

13.03.291 Allocation of personnel
and equipment costs.

13.03.292-13.03.300 Reserved.

Article VIII
Water Wells
Sections:

13.03.301 Purpose--Authority and
implementation.

13.03.302 Definitions.

13.03.303 Permit requirement.

13.03.304 Conditions of approval.

13.03.305 Conditions of denial.

13.03.306 Expiration or extension of
permit.

13.03.307 Permit revocation or
suspension.

13.03.308 Hearings.

13.03.309 Licensing and registration
of water well drillers and
contractors.

13.03.310 Standards.

13.03.311 Lateral (horizontal) well
standards.

13.03.312 Required inspection of well
site.

13.03.313 Required inspections of
wells.

13.03.314 Discharge of drilling
fluids.

13.03.315 General location of water
wells.

13.03.316 Well logs.

13.03.317 Water well surface
construction features.

Item 19.

13.03.318 Disinfection of water
wells.

13.03.319 Water quality standards.

13.03.320 Private well evaluations.

13.03.321 Well abandonment.

13.03.322 Public nuisance
abatement.

13.03.323 Declaration of proposed
reuse.

13.03.324 Administrative variance.

13.03.325 Violations and penalties.

13.03.326 Conflict with existing
laws.

13.03.327-13.03.340 Reserved.

Article I
General

13.03.010 Department createdSupervision.

A utilities department is created in the
city and the supervision of such department shall be under the direction of the utilities general manager.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.011 Office of general manager
created-Appointment,
duties, compensation.

The office of utilities general manager
is created, which office shall be appointed
by the city manager. The utilities general
manager shall be the administrative officer
of the water authority and shall discharge
such duties and receive such compensation
as shall be provided by resolution or ordinance or by the city manager. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.015

13.03.012 Application for service
required.

All applications for water must be made
in writing on forms provided by the city and
must be signed by the applicant.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.013 Liability for cost of changing
connection.

Should the service connection installed
pursuant to the request of an applicant be
of the wrong size or installed at a wrong
location, the cost of all charges required
shall be paid by the applicant; provided,
however, the provisions of this subsection
shall not apply where there is no error in
said application.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.014 Conditions of connection.

Every service connection made upon
receipt of an application as provided above
shall be subject to the following conditions:

A. The applicant shall pay the stipulated rates at the time and in the manner provided in this chapter.

B. The utilities department may change
rates and temporarily discontinue the service at any time without notice to the consumer.

C. The utilities department and the city
shall not be liable for any damage by water
or otherwise resulting from defective plumbing, broken or faulty service or water mains, or resulting from any condition of the water
itself, or any substance that may be mixed
with or be in the water as delivered to any
consumer.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.015 Deposits required-Amount.

Consumers guarantee deposits are required for water service pursuant to section

13.03.113.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)
528.33 (Coachella Supp. No. 16)

Item 19.

13.03.016

13.03.016 Deposits not interest-bearing.

No interest shall be payable at any time
upon any deposit made by any consumer
for service under the provisions of this chapter.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.017 Application of deposit.

Guarantee deposits shall be refunded
after twelve (12) months of continuous, satisfactory payment history (i.e., no delinquencies). If an account is closed in fewer than twelve (12) months, or if an account is closed
with any balance remaining on deposit, such
balance shall be applied to the closing bill.

Any balance in excess of ninety-nine cents
($0.99) of any deposit remaining after the
closing bill for service has been settled will
be returned promptly, provided nothing is
owing to the utilities department by the
depositor for water delivered to any former
address. Further application of deposits shall
be made as provided in section 13.03.113.B.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.018 Connection and meter
installation charges.

A. The utilities department shall make
charges as adopted by ordinance of the city
council or authority for installation of and
the perpetual maintenance of all water services, meters and appurtenances thereto, same to remain the property of the utilities
department. Such charges, in addition to all
other usual and regular charges of such
utilities department, including charges for
water main extensions and connections, must
be paid before work will be performed.

B. Whenever an installation is required
by an applicant that is not covered by the
above schedule of charges, such work will
be done with charges based upon the cost of
such installation as required by an applicant, which will be established by ordinance of the city council or authority.
(Coachella Supp. No. 16) 528.34
C. The schedule of charges adopted by
the city council or authority will include
meter boxes except where the basement is
excavated to the curb line, in which case the
applicant shall provide at his or her own
expense an adequate vault and cover to
house such meter and appurtenances in accordance with utilities department requirements.

D. If a meter and service installation
exceeds fifty (50) feet in length or for any
other valid reason it cannot be installed for
the amount stated in the above schedule of
charges due to the peculiarity of the proposed services, the water department reserves the right to make such installation on the basis of the costs of such installation as
determined by the utilities department.

E. When services are installed for automatic fire sprinkler service, the applicant must install at his or her own expense a
detector check valve of design and at a
location approved by the utilities department.

F. When a meter and service are installed, and application is made for an increase in size of service and meter at the same location, a schedule of credits as adopted by ordinance of the city council or authority will be allowed for the meter removed on the above schedule of charges for installation.

G. Whenever services, meters, fire hydrants or other appurtenances are required to be moved or exchanged by an applicant
for any reasons whatsoever, the charges for
such removal shall be made on the basis of
the cost of such removal as determined by
the utilities department.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.019 Monthly charges.

Monthly charges shall be made for water and for fire hydrants, pursuant to ordinance duly adopted by the city council of

Item 19.
the city of Coachella, California or the authority for those rates within the city limits, outside the city limits and for the circumstances where each customer's water is measured through a meter. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.020 Reading of meters, billing of
charges-When bills due.

For convenience in the reading of meters and the preparation of water bills, the utilities department is expressly authorized,
and it shall be its duty, to divide the city into
districts. These districts may, from time to
time, be revised or changed as necessary or
desirable, in order to equalize the work of
reading meters and billing. The meters in
each district so established shall be read on
approximately the same day of each and
every month, except when Saturdays, Sundays and legal holidays intervene. Water bills on such meter readings shall be prepared and mailed to the consumers in each district on approximately the same day of
each or every other month, except when
Saturdays, Sundays and legal holidays intervene. Fifteen (15) days shall be allowed from the date of mailing such bills for the
payment thereof.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.021 Charge when property
vacant.

In case a house becomes vacant the
regular minimum rate shall be charged and
collected from the owner thereof whether
water is used or not, unless the utilities
department is notified in writing of the fact
that the property is unoccupied and the
utilities department is requested to cut off
the water service therefrom.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.022 Individual connections and
meters required-Exceptions.

A. Two or more buildings under one
ownership and on the same lot or parcel of
528.35

13.03.024
land must be supplied by individual or separate service connections and meters except in the case of a court or in case of buildings
located on the rear of an inside lot, one
service and meter may be installed by the
owner to cover more than one building.

B. The utilities department, however,
reserves the right to limit the number of
buildings or the area of the land under one
ownership to be supplied by one service
connection.

C. A service connection shall not be
used to supply adjoining property of a different owner, or to supply property of the same owner across a street or alley.

D. When property provided with a service connection is subdivided, such service connection shall be considered as belonging to the lot or parcel of land which it directly enters.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.023 Combining readings of
separate meters.

For the purpose of making charges, all
meters supplying a consumer's premises will
be considered separately, and the readings
thereof will not be combined, except that
where the water department shall, for operating necessity, install in place of one meter, two or more meters, then the readings of
such two or more meters will be combined
for the purpose of making charges; provided, however, that the minimum water rates shall be applied to each such meter.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.024 Resale, misuse of water.

Unless specially agreed upon the consumer shall not resell any of the water received by him from the utilities department to any other person, or for any other purpose or on other premises than specified in his application for service.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)
(Coachella Supp. No. 16)

Item 19.

13.03.025

13.03.025 Curb cock requiredLiability for damage.

Every service connection installed by
the utilities department shall be equipped
with a curb cock or wheel valve on the inlet
side of the meter; such valve or curb cock
being intended exclusively for the use of the
utilities department in controlling the water
supply through the service connection pipe.

If the curb cock or wheel valve is damaged
by consumer's use to an extent requiring
replacement, such replacement shall be at
the consumer's expense.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.026 Pressure conditions.

All applicants for service connections
or water service shall be required to accept
such conditions of pressure and service as
are provided by the distributing system at
the location of the proposed service connection, and to hold the utilities department harmless from all damage arising from low
pressure or high pressure conditions or interruptions of service. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.027 Work requiring changes in
mains and connections.

Where persons, corporations or contractors making improvements, etc., requiring excavations in streets wherein water mains
and service connections exist, requiring such
water mains and service connections to be
cut and refitted, lowered or raised, etc., said
persons, corporations or contractors shall
make written request to the utilities department, insuring the payment of all costs incurred by the utilities department in making the changes necessary or required to be made.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.028 Fire service connections.

A. When a fire service connection is
installed the valve governing same will be
(Coachella Supp. No. 16) 528.36
closed and sealed and remain so until a
written order is received from the owner of
the premises to have water turned on. After
water is turned on the utilities department
shall not be held liable for damages of any
kind whatsoever that may occur to the premises serviced by reason of the installation, maintenance, use, fluctuation of pressure,
or interruption of supply.

B. In no case shall any connection be
made with any sprinkler or fire service without written consent of the utilities department, and should it be found that any such unauthorized connection has been made,
or that water has been used from a sprinkler
or fire service for any other purpose than
extinguishing a fire, the water service shall
be shut off and not turned on again until a
sum equivalent to the monthly minimum
provided for at that time, for a similar sized
regular installation, is paid covering the entire period during which the service has been installed. A standard meter of the
equivalent size of the service pipe shall be
installed by the utilities department at the
owner's expense at rates provided in Section

13.03.018.

C. The utilities department reserves the
right to install on each fire service connection a by-pass meter, such installation to be made at the expense of the owner of the
property.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.029 Water to pass through meter.

A. All services not otherwise provided
for in these rules and regulations shall be
metered, and all city water used on any
premises shall pass through a meter.

B. No by-pass or connection between
the meter and the main shall be made, maintained or permitted except as may be installed by the utilities department for sprinkler or fire service. Water served to any premises, where there is or has been any

Item 19.
infringement of this section will be shut off
at once, and will not be turned on again
until full satisfactory settlement has been
made with the utilities department for such
infringement.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.030 Use of water from hydrants.

A. Persons wishing to take a supply of
water from a fire hydrant must make application to the utilities department for such service. The utilities department will make
the necessary connections and install a meter of required size.

B. When water is required for construction purposes of any type, upon making proper application a service connection will
be made with a main or at a hydrant at the
most accessible point to the construction
work. When the connection is not sufficiently accessible and water must be taken to the work in a tank wagon or barrel, such
supply shall be taken through the meter as
installed. In no case will water be furnished
for any purpose except through a meter.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.031 Unauthorized turning water
on or off.

Turning on or off water at the curb or
inlet side of the meter by other than authorized employees of the utilities department in any instance or for any purpose whatsoever is unlawful. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.032 Using water to test pipes and
fixtures.

Whenever plumbers or other persons
connecting service pipes to the property or
outlet side of the meter may use the water
for testing pipes and fixtures at an unoccupied building, they shall see that water is properly shut off before leaving same.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)
528.37

13.03.037

13.03.033 Boiler connections.

A. It is unlawful for any person or persons to draw water from any city water supply pipe direct into any stationary steam
boiler.

B. All boilers or other heaters supplied
with city water shall be installed in compliance with the city's plumbing code and California state safety regulations. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.034 Charge for temporary
connections.

A temporary service connection may be
installed at the same charge as provided for
a regular service connection.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.037 Temporary connections
remote from property.

When water service is required by an
owner of real property on which there now
exists or is planned for immediate construction a dwelling, other structure or improvement requiring domestic water service and there is no water main adjacent to such
property the utilities department may grant
permission to said applicant to have a service connection and meter set at the nearest existing water main. The applicant must
agree in writing to the following conditions,
to pay all costs of installation and maintenance of a pipeline from the service connection and meter to his or her property and assume all responsibility, liability for, and
the payment of all costs and damages growing out of the installation, operation or failure of such pipeline. Such connection
and pipeline shall be installed an used as a
temporary arrangement only; that no water
shall be conveyed through such pipeline for
the use of any residence or property other
than the property for which it was originally intended; and that at such time as a regular permanent water main may be in-
(Coachella Supp. No. 16)

Item 19.

13.03.037
stalled to serve the property under this agreement, and on written demand of the utilities department the applicant must bear his or her proportionate share of the costs of
such main extension and at his or her expense shall install a regular domestic water service, and shall discontinue the use of
such temporary service connections and
pipeline.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.038 Special arrangements for
short term temporary service.

For temporary service over a short period, special arrangements may be made to secure water supply as follows:

A. From an installed service connection not in use.

B. From an outlet at the inlet side of a
meter on a service connection that is in use,
provided the applicant shall first secure the
owner's permission to make such connection, and shall agree to pay the cost of making the connection.

C. From house faucets, provided the
applicant shall first have arranged with the
consumer who pays for water used through
the service.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.039 Emergency shut-off required.

Consumers are instructed that in laying
service pipe from the building to the meter,
it is compulsory that a full way gate valve be
placed in the line, inside the meter box, for
use in shutting off the water in case of
emergency.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.040 Meter reading periodCharge when meter
defective-To whom bills
mailed.

Under ordinary conditions continuous
service meters shall be read monthly on
(Coachella Supp. No. 16) 528.38
approximately the same day of the month,
provided, however, that the utilities department may, at its discretion, read the meter of any consumer on a bi-monthly schedule
and a bill issued showing the period covered
by the meter readings, the quantity of water
used and the total charge for the service
rendered. If the meter readings indicate that
a large or unusual consumption has occurred, the readings will be checked before the bill is mailed. The utilities department's
services will be available without charge in
assisting in locating the probable causes of
high consumption. When it is impossible to
read the meter due to any obstructions, an
average bill, or a series of average bills, will
be rendered, and the accumulated overread or under-read (if any) will be adjusted at the next actual reading date. If the meter
fails to register, the charge for water will be
based upon the average of the comparable
period of the preceding year, taking into
consideration the volume of business,
weather conditions, and any other factors
that may assist in determining an equitable
charge. Unless the applicant for water service shall direct otherwise, all bills will be mailed to the premises where water service
is furnished.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.041 Meter testing-Adjustment
of bill.

A. When the accuracy of a water meter is in question, the utilities department shall upon the request of the consumer cause
an official test to be made upon deposit by
the consumer in an amount established by
ordinance of the city council or authority.

B. If, upon examination of the meter
to ascertain the accuracy of its operation, it
shall be found to register over three percent
more water than actually passes through it,
another meter will be substituted therefor,
and the fee charged for such test will be

Item 19.
refunded to the person making the application. An adjustment for a period of three months prior to the test will be made on the
basis of the percentages the meter is in error.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.042 Shutting off water at
consumer's request.

Upon application of the owner or occupant of a building or premises served by a water service connection to have the water
shut off at the supply or inlet side of the
meter, the department will shut the water
off, and at the same time will record the
reading of the meter.

13.03.043 Shutting off water for
repairs, extensions and
violations.

The department reserves the right to
shut off the water supply from any premises
at any time without notice, for the purpose
of making repairs, extensions or other necessary purposes, or for any infraction of this chapter.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.044 Wasting water prohibited.

It is unlawful for any person to willfully
or neglectfully waste water in any manner
whatsoever, and any person having knowledge of any conditions whereby water is being wasted shall immediately notify the
department of such fact.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.045 Water emergency regulations
authorized.

The city manager or utilities general
manager is hereby authorized to determine
and declare that a water shortage emergency exists in any or all parts of the city, and upon such determination, to promulgate such regulations, rules and conditions 528.39

13.03.047
relative to the time of using water, the purpose or purposes for which it may be used, and such other necessary limitations as will,
in his or her opinion, relieve the water shortage in any such section or sections of the city.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.046 Notice of declaration of
emergency.

Upon such emergency declaration by
the city manager or utilities general manager, it shall be his or her duty to have public notice given by publishing a notice
giving the extent, terms and conditions respecting the use and consumption of water, at least once in the official newspaper of
such city. Upon such declaration and publication of such notice due and proper notice shall be deemed to have been given each and every consumer supplied with water by
the city.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.047 Charges for turning water on
and off.

A. A charge in an amount established
by ordinance of the city council or authority will be made by the department for turning on the water supply, when requested by the consumer. No charge will be made for
shutting off of the water supply, when requested by the consumer, incident to the closing of an account.

B. When service has been disconnected
on account of nonpayment of water bills,
or on account of failure to make the required cash guarantee deposit, or for any other violation of this chapter, a charge in
an amount established by ordinance of the
city council or authority shall be made by
the department for turning on the water.

The amount, plus the consumer's unpaid
outstanding bills, must be paid by the consumer before service is renewed. (Ord. No. 1057, § 3(Exh. C), 10-23-13)
(Coachella Supp. No. 16)

Item 19.

13.03.048

13.03.048 Unauthorized turning on of
water.

It is unlawful for the occupants of the
premises to tum on the water, or cause it to
be turned on, after it has been shut off at
the curb or meter for any of the above
reasons, and in addition to any other penalties prescribed by law, the water will be shut off again, the curb cock shall be sealed,
the meter taken out, and a charge, in an
amount established by ordinance of the city
council or authority, will be made for the
expenses incurred.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.049 Removal of non-registering
meters.

When a non-registering meter is removed for failure to operate, a notice shall be left on the premises informing the consumer that the old meter supplying such premises has been removed for failure to
operate, and that a new meter has been set
in its place. This notice shall also inform the
consumer that in the event the removed
meter shall be found upon examination to
have been injured and rendered ineffective
because of the backing up of hot water or
steam from the consumer's water heater or
boiler, the expense of the damage caused
thereby will be charged to such consumer.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.050 Admission of department
employees.

Employees of the utilities department
shall be admitted during all reasonable hours
to the consumer's premises for the purpose
of inspecting, testing, checking, changing,
or reading water meters installed thereon,
and shall upon request and proper identification be admitted for said purpose to any building or structure located upon such
premises. All employees of the utilities department engaged in such work shall be (Coachella Supp. No. 16) 528.40
furnished with identification badges or letters of authority from an official of the utilities department.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.051 Employees not to make
repairs or be paid money.

Employees of the utilities department
are prohibited from making any sort of
repairs to consumer's fixtures on the property side of the meter. No money shall be paid to any utilities department employee
for any service unless he or she shall be an
authorized collector for the city.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.052 Turning water on at vacant
premises-Valve required on
property side of meter.

Whenever, in response to a tum-on order, a utilities department employee shall find the house or property vacant, he or she
shall endeavor to ascertain if water is running on the inside of the building. If this is found to be the case the water will be left
shut off at the meter and a notice shall be
left at the house stating why the water was
not turned on. All property owners shall be
required, for their own convenience and
safety, to have or provide a full way gate
valve in the line inside the meter box on the
property side of the meter.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.053 Using water without making
application.

A. A person taking possession of
premises and using water through an active
service connection without having made application to the water department for water service shall be held liable for the water
delivered from the date of the last recorded
meter reading, and if the meter was, found
inoperative the quantity of water consumed
will be estimated.

Item 19.

B. If proper application for water service is not made promptly upon notification to do so by the water department, or if accumulated bills for service are not paid
immediately, the service may be discontinued by the water department without further notice. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.054 Department not liable for
damages inside meter.

The utilities department's jurisdiction
and responsibility ends at the meter, and the
water department will in no case be liable
for damages occasioned by water running
from open or faulty fixtures, or from broken or damaged pipes beyond the utilities department's meter.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.055 Miscellaneous services of
department.

The utilities department is always willing to render any reasonable service in connection with the supply of water service to consumers upon application at the main
office of the utilities department; provided,
however, that reasonable charges may be
made for any expense involved in rendering
the service.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.056 Mains declared property of
department.

All water pipes which have been approved by the utilities department, constructed in streets, easements, alleys, or other public thoroughfares within the corporate
limits of the city shall become the property
of the utilities department.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.057 Notice before working on
street-Liability for
damages.

All persons, who open, grade, regrade,
fill, excavate, or otherwise work on a street,
528.41

13.03.061
shall give at least three days' written notice
to the utilities department for the removal,
raising, lowering, or otherwise displacement of any water mains, pipes, fittings, meters, or other water system property that
may interfere with such street work. Persons performing such work shall be liable for damage to city properties.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.058 Use of fire hydrants.

Fire hydrants are provided for the sole
purpose of extinguishing fires, and are to be
opened and used only by the fire department and utilities department, or such other persons as are specially authorized by the
utilities department, upon such person or
persons making application at the main office of the utilities department. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.059 Manner of opening fire
hydrants.

To insure safety of fire hydrants for fire
protection, any person authorized by the
utilities department to open fire hydrants
will be required to use only an approved
Spanner wrench, and to replace the caps on
outlets when the same are not in use. Failure to meet this requirement will be sufficient cause to prohibit further use of the hydrants, and the refusal of subsequent authorization for use of the fire hydrants. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.060 Taking water away from fire
hydrant.

It is unlawful for any person or persons
to carry away any water from any fire hydrant without a written permit, furnished upon a regular application, from the utilities department. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.061 Obstructing access to
hydrants and water fixtures.

It is unlawful for any person to place
upon or about any fire hydrant, gate valve,
(Coachella Supp. No. 16)

Item 19.

13.03.061
manhole, curb-cock stop-cock, meter or meter box connected with water pipes of the system of water-works, any material, debris
or structure of any kind so as to prevent
free access to the same at all times.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.062 No rent for meters and
appliances.

No rent or other charge shall be made
by the consumer against the utilities department nor by said utilities department against the consumer for placing or maintaining
any meter or appliance upon the consumer's premises.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.063 Relocating connection.

Any person desiring to change the location of a service that has already been installed shall make application to the utilities department and, upon payment in advance of the cost of time and material,
including excavation and repaving, as estimated by the city engineer, the utilities department will cause said change to be made. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.064 Meters and appliances
department propertyMaintenance.

All water meters and appliances installed by the utilities department at its expense upon the consumer's premises shall remain at all times the property of the city
and shall be maintained, repaired, and renewed by the utilities department when rendered unserviceable by normal wear and tear, and may be removed from the consumer's premises at any time. (Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.065 Care by consumers to avoid
damage to department
property.

A. The consumer shall exercise reasonable care to prevent water meters and appli- (Coachella Supp. No. 16) 528.42
ances on his/her premises from being injured or destroyed, and shall refrain from interfering with the same. Where replacements, repairs, or adjustments of any water meter or other appliance are rendered necessary by any act resulting from malice or neglect of the consumer, or any member of
his or her family, or of anyone employed by
him or her, the cost thereof shall be charged
to and paid for by the consumer on presentation of the bill therefor.

B. Any damage which may result from
hot water or steam from any boiler or heater
on the consumer's premises shall be paid for
by the consumer on presentation of a bill
therefor.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.066 Permission required for work
affecting department
property-Bypasses
prohibited.

It is unlawful for any person to move,
alter, interfere with, or remove, or cause the
same to be done, any water meter or appliance installed by the utilities department without first obtaining written permission
from the utilities general manager, or to
make or maintain any bypass or other connection between the meter and main water line.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.067 Additional connection charge
when consumer bas not paid
cost of main extension.

Every applicant for water service for
mains installed prior to the date of application who has not theretofore either in person or through his predecessor, in interest, paid his or her proportionate share of the
cost of the water main, with respect to the
property to be served, shall before such
application will be acted upon or water furnished pursuant thereto, pay to the utilities

Item 19.
department a main connection charge (front
footage fee) in an amount established by
ordinance of the city council or authority
for each lineal foot of existing water main
adjacent to the parcel. Such connection
charge is in addition to all other usual and
regular charges of the utilities department
including charges for service connection and
meter installation.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.068 Main extensions and
replacement at city cost.

Whenever the utilities general manager
recommends and the public interest or convenience requires the extension of any water main or the replacement of any substandard water main or mains of the utilities department, the city council or authority
may make water main extensions and replacements of substandard mains, provided that funds are available.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.069 Extensions to unsubdivided
property.

A. When an application is made for
water service which requires a water main
extension to serve property not conventionally subdivided into city lots, the area shall be considered acreage, and the extension
shall be made at the expense of the applicant as hereinafter provided.

B. The required extension shall originate at the nearest adequate existing water main as determined by the utilities general
manager and shall extend to and full length
along the property to be provided with water service.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.070 Extension designsSpecifications.

A. The design, location, materials and
standards of construction of any and all
extensions shall be approved by the utilities
general manager.
528.43

13.03.071
B. The design of an extension shall be
based upon consideration of adequate capacity to meet the present and future requirements of the area to be benefited, of distribution system operation and efficiency,
of maintenance requirements, and of anticipated life of such extension.

C. Extensions shall generally be located on the south and east sides of dedicated city streets or in rights-of-way granted to the city for water main location. Under
no circumstances shall any structure be
placed over any water main or extension.

D. Materials and standards of construction shall be those which have been adopted and are used by the utilities department for the area and class of service to be provided.
(Ord. No. 1057, § 3(Exh. C), 10-23-13)

13.03.071 Cost of extensions to or in
populated areas.

The cost of an extension to or in a
populated area shall be borne by the applicant requiring such extension, in conformity with the following provisions:

A. Upon receipt of an application for
water service which requires an extension,
when such application is properly filled out
and provides an accurate description of the
property to be served, the city council shall
cause the utilities department to prepare a
map showing the area to be benefited by
such extension and to make an estimate of
cost of installation of the proposed extension. The applicant shall then deposit an amount established by ordinance of the city
council or authority with the city. Following receipt of such deposit, the water superintendent shall cause the proposed extension to be constructed. Or, upon approval of the utilities general manager and subject
to specifications of and inspection by the
utilities department, the proposed extension may be installed by private contract at the applicant's sole expense.
(Coachella Supp. No. 16)