APPENDIX S EL DORADO COUNTY WATER AGENCY DRAFT WATER USE AND CONSERVATION ANALYSIS

Transcription

1 APPENDIX S EL DORADO COUNTY WATER AGENCY DRAFT WATER USE AND CONSERVATION ANALYSIS

2 Appendix S El Dorado County Water Agency Draft Water Use and Conservation Analysis Prepared by El Dorado County Water Agency Brown and Caldwell S-1

3 TABLE OF CONTENTS 1. Introduction Data Collection Per Capita Water Use El Dorado County Water Purveyors El Dorado Irrigation District Georgetown Divide Public Utility District South Tahoe Public Utility District Regional and Statewide GPCD Comparison Regional Climatic Influences on Water Demand Affect of Population Density and Lot Size and Water Use Regional Baseline GPCD Comparison Historic Conservation Efforts Recent Legislation EID and Placerville Urban Water Conservation GDPUD Urban Water Conservation STPUD Urban Water Conservation References

4 1. INTRODUCTION To better address increased concerns over the availability of regional water supplies and recent legislative conservation mandates, the El Dorado County Water Agency (EDCWA), with the assistance of Brown and Caldwell (BC), has prepared this Water Use and Conservation Analysis for El Dorado County water purveyors. Since the Governor s 2008 call for a 20% reduction in urban water use by 2020, there has been significant effort at the State level in developing both the 20x2020 Water Conservation Plan (20x2020 Plan) and legislation to achieve the Governor s goal. The 20x2020 Plan sets forth a statewide road map to maximize the state s urban water efficiency and conservation. Urban water use includes residential, commercial, and industrial uses. The 20x2020 Plan makes comparisons of water use between regions of and agencies within California by measuring gross gallons per capita per day (GPCD), and establishes urban baseline and target GPCD for each of ten hydrologic regions statewide. SB 7X-7 (Water Code section (b)(4)) codifies the 20x2020 Plan. This report presents an analysis of historic and current local water use, estimates urban GPCD baselines, and documents conservation activity for the El Dorado Irrigation District (EID), including Placerville, Georgetown Divide Public Utility District (GDPUD), and South Tahoe Public Utility District (STPUD) the three largest water purveyors in El Dorado County. Purveyor historic average per capita water use and conservation savings are compared to statewide, regional, and local water system estimates. The report is organized into 5 sections including: an Introduction, Data Collection, Per Capita Water Use, Conservation Efforts, and Conclusions. 2. DATA COLLECTION Water use and population data were requested from EID, GDPUD, and STPUD. To the extent the information was available, the following data were received and used for the analyses presented in this report: Historic and projected population and accounts by customer category for years , Years are used to be consistent with the California Department of Water Resources (DWR) regional baseline estimates. Water consumption by customer category (including recycled water) for years , Unaccounted for water for years , Total raw water diversions for years , Water conservation Best Management Practice (BMP) interventions and historical water savings. For some agencies, in the absence of BMP water savings data, water savings were estimated in accordance with California Urban Water Conservation Council (CUWCC) accepted methodology. 3

5 3. PER CAPITA WATER USE This section presents historic average and current GPCD estimates by customer category for EID, GDPUD, and STPUD. As a wholesale customer of EID, the City of Placerville water use information is included in EID s data. Population, total water use and indoor water use estimates are also presented. A comparison of historical average GPCD estimates with available local, regional, and statewide GPCD estimates is also provided. Historical average values are primarily based on data from years Current year estimates are year 2008 data. 3.1 El Dorado County Water Purveyors The following tables, 3-1 through 3-3, present historical average and current year EID, GDPUD, and STPUD population, total GPCD and indoor GPCD by customer category, and total water use where data are available. The notes below each table summarize data sources and the various assumptions that were made to calculate the presented values El Dorado Irrigation District The El Dorado Irrigation District is located on the western slope of the Sierra Nevada generally between the South Fork American River on the north and the North Fork Cosumnes River on the south, and generally between 500 and 4,000 feet (msl). EID is located within the Sacramento River and San Joaquin River Hydrologic Region. EID provides urban and agricultural water through a contiguous treated water system (and two small satellite systems) to approximately 120,000 people. In this analysis, urban and agricultural uses are separated and only urban use is presented. Table 3-1 provides a summary of total water use, GPCD by customer category and indoor GPCD estimates by customer category for the historical period of and for year It should be noted that EID has chosen to use the time frame allowed by SB 7X-7. Table 3-1 El Dorado Irrigation District Urban Water Use Year Population Total GPCD CII w/cii Indoor GPCD CII w/cii Total Water Use (AF) Historic Average ( ) _ _ Current (2008) 119, ,782 Notes: 1. Population and Total Water Use include satellite systems (Outingdale and Strawberry) and wholesale customer City of Placerville. 2. Data provided by EID based on Annual Consumption Report and Water Resource Reports. 3. Population estimates are based on persons per household from year 2000 census (2.63) - multiplied by occupied residential dwellings units. 4. Total urban water use and total urban GPCD estimates include all treated water, less metered agricultural, small farm, potable water turned into ditches for agricultural uses and water held in long term storage. 5. Indoor GPCD is based on lowest bimonthly metered water use as reported in EID bi-monthly demand reports and does not include losses. 4

6 3.1.2 Georgetown Divide Public Utility District The Georgetown Divide Public Utility District is also located on the western slope of the Sierra Nevada foothills, generally between the Middle and South Forks of the American River between 500 and 4,200 feet (msl). GDPUD provides urban and agricultural water service and is located in the Sacramento River Hydrologic Region. Agricultural water is delivered through a system of ditches, while urban water uses are provided for through a separate piped system. In this analysis, urban and agricultural uses are separated and only urban use is presented. Currently, GDPUD is providing potable water service to approximately 9,300 people. Table 3-2 provides a summary of total water use, GPCD by customer category and indoor GPCD estimates by customer category for the historical period of and for year Table 3-2. Georgetown Divide Public Utility District Urban Water Use Year Population Total GPCD CII w/cii Indoor GPCD CII w/cii Total Water Use (AF) Historic Average ( ) _ _ Current (2008) 9, ,144 Notes: 1. Population is based on number of accounts, with an adjustment for multi-family units that are not individually metered, multiplied by 2.63 people per household from the 2000 Census. 2. Historical average values based on metered and water treatment plant production data provided by GDPUD. 3. Indoor GPCD is based on the average of the lowest month plant production. Indoor GPCD by customer category is based on annual customer category water use as a percentage of total water use. Water losses are included in indoor water use estimates South Tahoe Public Utility District The South Tahoe Public Utility District, located at the south end of Lake Tahoe in the Tahoe Basin, provides residential and commercial water service to approximately 32,000 permanent residents and 60,000 tourists. STPUD is located in the North Lahontan Hydrologic Region at an elevation of approximately 6,300 feet. Table 3-3 provides a summary of total water use, GPCD by customer category and indoor GPCD estimates by customer category for the historical period of and for year With approximately 60,000 tourists annually, STPUD may want to consider, in the preparation of its 2010 Urban Water Management Plan, an alternative GPCD calculation method that considers this population. 5

7 Table 3-3 South Tahoe Public Utility District Urban Water Use Year Population Total GPCD CII w/cii Indoor GPCD CII w/cii Total Water Use (AF) Historic Average ( ) _ _ Current (2008) 32, ,635 Notes: 1. Year 2000, 2005 data source is the STPUD 2005 UWMP population based on 2005 and 2010 estimates , 1996, 1997, 1999, 2001, 2003, and 2004 population, account, and water use data based on DWR PWSS reports. 4. Historical annual well production data provided by Randy Curtis, STPUD, 11/02/09 5. Historical water loss is assumed to be 10%, consistent with projected losses. 6. Based on DWR PWSS reports, STPUD serving between 50,000 and 60,000 tourists/year. Tourists are not included in the population estimate. 7. Historical average total GPCD based on population and annual well production data. Historical average GPCD by customer category is based on year 2000 and 2005 customer water use data as reported in the 2005 UWMP. 8. Indoor residential GPCD based on lowest month well production. Indoor GPCD by customer category is based 2000 and 2005 customer water use data as reported in the 2005 UWMP. Water losses are included in indoor water use estimates. 3.2 Regional and Statewide GPCD Comparisons The 20x2020 Plan is based on analyses conducted on a regional and statewide basis. The analyses were done by hydrologic region, which capture topographic and hydrologic characteristics of distinct areas of the State. The regions are shown on Figure 3.1, California Hydrologic Regions. This section of the report compares the results of that analysis, discusses the influence climate and density have on water use, and compares regional differences in water use and local water use characteristics. 6

8 Figure 3-1 California Hydrologic Regions 7

9 3.3 Regional Climatic Influences on Water Demand El Dorado County Water Agency A significant natural driver for water demand is climate. Table 3-4 presents various evaportranspiration rates (ET) for several California agencies. ET is an indicator of how much water a plant loses on a daily basis. The higher the ET, the higher the outdoor water use. In El Dorado County and the Sacramento Region in general, plants need more water as compared to coastal areas. As a result, there is a spike in water demand in the hot summer months. As shown on Figure 3-2, California Evapotranspiration Map, and in Table 3-4, the Sacramento Region s ET is approximately 20 percent higher than coastal San Francisco; and approximately 12 percent higher than the Los Angeles Basin. Higher outdoor water uses therefore, should be expected in the Sacramento region as compared to coastal area. Table 3-4 California Evapotranspiration Water Agency Average ET, (in/yr) San Francisco Public Utility Commission LA Department of Water and Power Sacramento Suburban Water District City of Sacramento City of Roseville City of Folsom Placer County Water Agency San Juan Water District (retail) El Dorado Irrigation District Georgetown Divide Pubic Utility District South Lake Tahoe Utility District Source: various agency 2005 urban water management plans and California Irrigation Management Information System (CIMIS), Online

10 Source: (CIMIS 2009) Figure 3-2. California Evapotranspiration Map 9

11 3.4 Affect of Population Density and Lot Size on Water Use The most significant factor affecting average water use per person is population density. Residents in urban areas with high housing densities (apartments, etc.) typically have little or no personal landscape space. The primary landscaped areas these residents have access to are public parks. On the other hand, people in less dense areas, such as the Sacramento area, are living in single family homes with landscaped front and back yards, which require more outdoor water. In more rural regions of El Dorado County and the foothills in general, livestock watering and large garden irrigation also increase water use per person. Table 3-5 presents various California agency population densities and their respective GPCD estimates. It is clear from Table 3-5 that both Los Angeles and San Francisco are significantly denser than El Dorado County or the Sacramento area water agency listed. The California Population Map, Figure 3-3, shows population densities in California. Table 3-5 California Population Densities Water Agency Residents per Acre Total GPCD San Francisco Public Utility Commission Los Angeles Department of Water and Power Sacramento Suburban Water District City of Sacramento City of Roseville City of Folsom Placer County Water Agency San Juan Water District (retail) EL Dorado Irrigation District Georgetown Divide Public utility District South Tahoe Public Utility District Notes: 1. EID s reported total GPCD does not included commercial agricultural and small farm water use, though the acreage reported does. 10

12 El Dorado County Source: U.S. Census Bureau Census Figure 3-3. California Population Map Figure 3-4 shows the relationship between density and GPCD graphically. In large urban centers such as Los Angeles and San Francisco, where density ranges from 14 to 27 people per acre, respectively, water use per person is lower than in less densely populated areas in the state, such as the Sacramento Region and El Dorado County. STPUD is not included in this figure because of their unique transient tourist population. 11

13 GPCD Density (residents per acre) Large Urban Centers Sacramento Area EID GDPUD Sacramento Area Large Urban Centers Figure 3--4 Density versus GPCD Regional Baseline GPCD Comparisons This section compares El Dorado County water purveyor per capita use with other California water agencies and regional estimates. Table 3-6 presents per capita water use by customer class, as well as various ET and densities estimates, in order to demonstrate the proportional relationship between water use, density, and climate as discussed previously. Statewide baseline information, for the most part, is based on DWR Public Water System Statistics (PWSS), and ranges from 154 GPCD in the Central Coast Region, where the climate is cooler, water supplies are limited and the cost of water is high, to a high of 346 GPCD in the arid Colorado River Region. The Sacramento River and San Joaquin River Regions are in the middle of the range at 253 and 248 GPCD, respectively. These regional averages are shown in Table 3-6, together with the urban water use of several greater Sacramento area water agencies, ranging from 215 to 387 GPCD. GDPUD and EID urban water use is estimated 199 and 272 GPCD, respectively. The North Lahontan Region is also in the middle of the statewide range at 243 GPCD. STPUD, located in the North Lahontan Region, urban water use is estimated to be 214 GPCD. It should be noted that urban water use reported to DWR though the PWSS, which is used to calculate the GPCD baseline, is based on treatment plant production and does not include losses between the source and the treatment plant discharge. 12

14 As demonstrated in the Table 3-6, outdoor water use is a significant part of the demand profile for single-family households, and reflects a large part of the differences among regional data. In all regions, outdoor water consumption exceeds 40 percent of consumption. In Regions 5 through 8, it represents more than 60 percent of total demand, and almost 70 percent of demand in Regions 9 and 10. EID s historic average GPCD of 272 is more than the Region 5 and 6 averages, while the GDPUD s estimated baseline GPCD of 199 is less than the Region 5 average of 253 GPCD. When comparing El Dorado County Region 5 water agencies with the average of the Sacramento area water agencies GPCD of 299, all El Dorado County both EID and GDPUD have a lower GPCD. The baseline GPCD estimate of 214 for STPUD is lower than the Region 8 GPCD of 243. As expected, lower densities are proportional to higher per capita water use and as demonstrated in Figure 3-4, when density is considered, EID and GDPUD per capita water use per acre is lower than other water agencies in the Sacramento area. This is likely due to that fact that El Dorado County western slope water agencies have been metering urban water use since the 1970s and 1980s, while Sacramento area water uses are only partially metered. 13

15 Population (current) Table 3-6 California Water Agency and Regional Per Capita Water Use, ET, Population and Water use Population Population density (residents per acre) density (residents per square mile) Baseline GPCD Range, GPCD Baseline GPCD BaselineCII GPCD Baseline SF Indoor GPCD Baseline SF Outdoor GPCD Baseline SF GPCD Baseline Indoor GPCD Standard average ET, (in/yr) Baseline Total Indoor water use, GPCD Agency or region Hydrologic Region Region 1: North Coast Region 2: San Francisco Bay Region 3: Central Coast Region 4: South Coast Region 5: Sacramento River Region 6: San Joaquin Region 7: Tulare Lake Region 8: North Lahontan Region 9: South Lahontan Region 10: Colorado River California statewide weighted average Large Urban Centers San Francisco Public Utility Commission 799, , Los Angeles Department of Water and Power 4,071, , Sacramento Area Sacramento Suburban Water District 160, , City of Sacramento 475, , City of Roseville 112, , City of Folsom 65, , Placer County Water Agency 96, , San Juan Water District (retail) 30, , El Dorado County Region 5: Sacramento River EID 119, , GDPUD 9, Region 8: North Lahontan STPUD 32, , Notes: 1. Region 1-10 estimates source: DWR. 20x2020 Water Conservation Plan February See previous report tables for notes on EID, GDPUD, and STPUD values. 3. Region 1-10 historical average data is based on years ND means there was not enough historical data to calculate a publishable value; or calculating this value was beyond the scope of this effort. 5. Data source for LADWP, SFPUC, PCWA, Roseville, SSWD, SJWD, and Folsom are excerpts from PCWA and Regional Water Authority efforts to impact 20x2020 legislation. Historical average data for these agencies is based on years , as available. 14

16 4. HISTORIC CONSERVATION EFFORTS This section presents historic conservation efforts for EID (including Placerville), GDPUD, and STPUD. Historical quantifiable water savings and a summary of each agency s conservation programs are presented. 4.1 Recent Legislation In November 2009, Senate Bill (SB) X7-7 passed in the legislature and was signed into law. SB X7-7 requires water agencies to establish a per capita water use baseline and target using one of four methods: (1) Eighty percent of the urban retail water supplier s baseline per capita daily water use using a 10-year average; (2) The per capita daily water use that is estimated using the sum of several defined performance standards. This method requires quantifying the landscaped area and the baseline commercial, industrial, and institutional use; (3) Ninety-five percent of the applicable state hydrologic region target, as set forth in the state s draft 20x2020 Water Conservation Plan (dated April 30, 2009); and (4) A method that shall be developed by DWR and reported to the Legislature no later than December 31, 2010, with a public draft available by Oct. 1, The method will identify per capita targets that cumulatively result in a statewide 20-percent reduction in urban daily per capita water use by December 31, SB X7-7 does not account for water savings resulting from conservation efforts prior to This one size fits all legislation does not recognize the substantial investment made by El Dorado County western slope water agencies who have been metered and implementing conservation programs since the 1970 s. Tthe CUWCC estimates in its Utility Operations Program Metering with Commodity Rates, a 20% reduction in demand should result from metering and volumetric pricing. This would imply that metering and volumetric pricing alone could satisfy the 20% conservation requirement of SB 7X-7 for agencies that currently employ unmetered connections, or that agencies that do meter and employ volumetric pricing have already achieved 20% water conservation, as compared to agencies that do not meter or employ volumetric pricing. 4.2 EID and Placerville Urban Water Conservation According to the 1999 Agreement between El Dorado Irrigation District and the City of Placerville for a Water Supply, EID and Placerville are both mandated to implement a water conservation demand management measures program as required by Federal and State regulations. Placerville agrees to contract with EID for these water conservation services and reimburse EID for implementation costs. EID, whose service area surrounds the City of Placerville, tracks water savings for its own customers as well as savings for Placerville customers; therefore, historical and projected conservation savings and water use are presented jointly for the two water purveyors. 15

17 In 2008, EID and Placerville saved approximately 9,300 AF of water through metering (formerly BMP 4). Both agencies have potable water systems that are fully metered, and both employ tiered rate structures. Water savings resulting from metering is based on an estimated 20 percent reduction in water use according to the CUWCC. Approximately 3,600 AF in additional savings, resulting from other BMP implementation, was realized in Recycled water production at EID s Deer Creek and El Dorado Hills Wastewater Treatment Plants offset potable water use by approximately 3,500 AF in Figure 4-1 presents EID and Placerville s historical urban and agricultural water use and conservation savings resulting from metering and other BMP implementation. 70,000 El Dorado Irrigation District & City of Placerville Water Use 60,000 50,000 Acre-feet 40,000 30,000 20,000 10,000 EID recycled water use EID/Placerville BMP savings Actual EID/Placerville water use Year Figure 4-1. EID and Placerville Historical Water Use and Water Conservation Savings The following is a summary of EID water conservation programs that are also available to City of Placerville water service customers: Toilet rebates: for the installation of new high-efficiency, WaterSense rated toilets in pre-1992 residences. Clothes washer rebates: for new TIER 3 high-efficiency clothes washers. Home water audits: plumbing retrofit kits including low-flow showerheads, faucet aerators, and toilet tank dams, and distribution of water saving publications. Toilet leak detection: toilet dye tabs to detect leaks. Commercial/Industrial/Institutional (CII) Toilet rebates: for the installation of new high-efficiency, WaterSense rated toilets or urinals installed in pre-1992 commercial establishments. 16

18 Clothes washer rebates: for new TIER 3 commercial grade high-efficiency clothes washers. Water surveys: for CII properties to assist in identifying any plumbing leaks and/or fine tuning their irrigation schedules. Includes both indoor and landscape surveys with a detailed report that offers water-saving recommendations. Pre-rinse spray nozzles: offering new low-flow, high-efficiency, and high-velocity prerinse spray valves to replace older 2 to 6 gallon per minute spray valves. Agriculture Irrigation Management Services program: developed in the late 1970s through cooperation with local growers, EID, the University of California Cooperative Extension, and local, state, and federal governments. The program, which is offered to all agriculture-metered irrigation accounts in EID's service area, uses weather and soil moisture information to provide growers with suggested irrigation dates and run times and utilizes a grower advisory committee for input and outreach to agricultural customers. Participants in the program save a total of more than 2,500 acre-feet of water every year. EID also maintains the State CIMIS station at Camino. Raw water distribution system leak detection and repair. Landscape Smart irrigation controller rebates: landscape water survey for residential and CII customer to replace automatic clocks with qualifying Smart climate-based irrigation controllers that use evapotransporation (ET) or soil moisture sensors to determine when to irrigate. Irrigation system improvement rebates: available for existing irrigation systems. Large landscape sub-metering with ET controller: available to CII customers, excluding Placerville, to separate landscape irrigation from building uses for more efficient monitoring of irrigation demands. Smart ET controller vouchers: targeting CII customers as well as owner associations that maintain common or front yard landscaping. Educational Elementary and middle school educational materials: available to all local school districts within the EID service area and the City of Placerville. The materials include interactive classroom booklets (K-8) concerning water conservation, the water cycle, wastewater treatment, our environment, recycling, and water-themed coloring books. Newspapers in Education program: delivers newspapers and educational supplements to classrooms. Landscape publications: available in the lobby of EID s headquarters building, including materials on water-efficient landscape design and plant selection. The popular, interactive CD ROM Water-Wise Gardening in the Gold Country Region is also available in the lobby and online Demonstration garden: The EID headquarters building grounds feature droughttolerant and native plant species. Signage identifies the plants. Events: water-efficiency publications and materials are distributed at EID booths during outreach events such as home and garden shows and numerous community events. Recycled Water 17

19 EID operates two reclamation plants and deliveries approximately 3,500 acre-feet of recycled water each year to CII customers, residential dwellings for front and back yard irrigation and treatment plant uses. Recycled water use is mandatory, where feasible, within the service area. In addition to the water conservation elements above, EID implements the following foundational best management practices. Volumetric metering of water system customers with tiered commodity rates, including meter testing and programmatic replacement within the contiguous system. Enforcement of a water waste prohibition regulation including outreach at yearly public meetings. Water loss control including [pressure management and leak detection analysis and intervention. Wholesale agency assistance to the City of Placerville. Designation of full-time water conservation coordinator. 4.3 GDPUD Urban Water Conservation In 2008, GDPUD saved approximately 430 AF of water through metering (formerly BMP 4). Savings are based on an estimated 20 percent reduction in water use according the CUWCC. GDPUD urban water use has been metered since the 1970 s. Figure 4-2 presents GDPUD s historical urban water use and conservation savings. 3,000 GDPUD Water Use 2,500 2,000 Acre-feet 1,500 1,000 GDPUD BMP savings Actual GDPUD water use Year Figure 4-2. GDPUD Historical Water Use and Water Conservation Savings 18

20 The following is a summary of GDPUD Water Conservation Program: Metering of domestic water customers with tiered commodity rates: Almost all (99.8%) of the District's domestic water connections are metered and all water is billed volumetrically. Efficient Application of Irrigation Water: Untreated irrigation water is contracted and billed for the irrigation season on the basis of a specified flow rate. Deliveries from ditches are metered. Deliveries from pipelines are made through pressure-activated flow metering devices. There are two evaporation/weather stations that were established with the support and cooperation of the Department of Water Resources and Georgetown Divide Resource Conservation District. Maintenance of Water Use Records by User Type: The data provided by record keeping is fundamental to evaluating the effectiveness of water conservation programs. System Pressure Control Program: The district operates with 8 pressure zones and forty-nine pressure reducing stations. Leak Reduction: The district actively implements programs to reduce losses in both the treated and untreated water conveyance systems. Public Information and School Education Programs: GDPUD has a public information program promoting conscientious use of water resources. District personnel speak at local schools, service clubs, neighborhood association meetings, etc. Demonstration Garden: A demonstration of drought tolerant plants has been established at the district office. Water Waste Prohibition: In response to the drought years , the district's Board of Directors passed an ordinance in 1983 that authorized abatement procedures to curtail blatant water waste. GDPUD plans to improve its water conservation program through a Cosumnes, American, Bear and Yuba (CABY) watershed group grant. The grant application work plan identifies residential and utility conservation programs including, improving customer education and awareness, water audits, plumbing retrofits and meter replacements. 4.4 STPUD Urban Water Conservation In 2008, STPUD saved approximately 600 AF of water through metering. Savings are based on an estimated 20 percent reduction in water use according to the CUWCC. Since 1992, all new connections have been required to be metered. Most commercial accounts are currently metered and there are plans to install 2,800 residential meters in 2010 and the remaining 140 commercial meters in 2011, pending grant funding. Although STPUD is working toward metering all of its customers, funding for this activity is a significant barrier. Figure 4-3 presents STPUD s historical water use and conservation savings. 19

21 STPUD Water Use Acre-feet 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 1,000 STPUD BMP savings Actual STPUD water use Year Figure 4-3. STPUD Historical Water Use and Water Conservation Savings The following is a summary of STPUD Water Conservation Program. A more detailed description of STPUD s conservation best management practices can be found in its 2005 UWMP. Scheduled Irrigation Days: As water production nearly triples during warm summer months, the District has implemented scheduled irrigation days. Turf Buy Back Program: The District offers a turf buy back program to provide a financial incentive for homeowners to remove lawn areas that are rarely used and convert to water efficient landscaping. Washing Machine Rebate Program: The District currently offers a rebate for clothes washers with a water factor of 5.0 or less. Water Upon Request Program: To address the high demand of water consumption of restaurants in a tourist town, the District offers a Water Upon Request Program which provides table tents, menu stickers and a plaque for restaurants that only serve patrons water upon their request. Outreach and Education: Information regarding conservation and outdoor conservation kits are distributed at community events throughout the year and continually presented in local television, newspaper, and radio advertisements, as well as bill inserts. The District also plays an active role in the local school district by offering a Wonders of Water curriculum to kindergarten through fifth grade students every Fall. 20

22 5. REFERENCES Brown and Caldwell. City of Placerville 2005 Urban Water Management Plan, August Brown and Caldwell. El Dorado Irrigation District 2005 Urban Water Management Plan January California Energy Commission (CEC). California s Water-Energy Relationship - Staff Report California Irrigation Management Information System (CIMIS), Online Curtis, Randy. Communication. STPUD Historical annual well production November Department of Water Resources. 20x2020 Water Conservation Plan Draft 30 April Department of Water Resources. California Water Plan Department of Water Resources. Public Water System Statistic Reports for El Dorado Irrigation District, Georgetown Divide Public Utility District, South Tahoe Public Utility District, the City of Placerville, and Grizzly Flats Community Services District El Dorado County Water Agency. Water Resources Development and Management Plan. December 2007 El Dorado Irrigation District. Annual Consumption Report and Water Resource Reports, El Dorado Irrigation District. Annual letter to EID from the Director of Finance for the City of Placerville, Kennedy/Jenks Consultants. South Tahoe Public Utility District Urban Water Management Plan 2005 Update January Pesses, Randy, Public Works Director, City of Placerville. Communication. November 2009 Sacramento Municipal Utility District (SMUD). Analysis of Energy-Water Demand Siren and Associates Environmental Consultants. Georgetown Divide Public Utility District Urban Water Management Plan URS. Grizzly Flats Community Services District Water Supply and Demand Update - Draft. August El Dorado Irrigation District. Deanne Kloepfer conservation communication. Grizzly Flats Community Services District. Jodi Lauther conservation communication. Grizzly Flats Community Services District, Ordinance South Tahoe Public Utility District. Shelly Barnes conservation communication. 21