The URL can be used to link to this page

Home My WebLink About1997-03-04; Municipal Water District; 354; Draft Urban Water Management PlanCARLSBAD MUNICIPAL WATER DISTRICT - AGEN AB# & TITLE: ACCEPT THE DRAFT URBAN WATER MTG. 03/04/97 MANAGEMENT PLAN AND SCHEDULE A PUBLIC HEARING ON APRIL 8,1997, DEPT. CMWD FOR FINAL ADOPTION IA BILL DEPT. HD. CITY ATTY. CITY MGR. ?@ RECOMMENDED ACTION: Accept the Draft Urban Water Management Plan and schedule a public hearing on April 8, 1997, for final adoption. ITEM EXPLANATION: In 1983, the Urban Management Planning Act (UWMPA) was enacted by the California Legislature under Assembly Bill 797 which is now contained in the California Water Code 10610 et. seq. This legislation requires medium and large urban water purveyors, defined as those serving 3,000 or more customers or providing at least 3,000 acre-feet of water per year (AFY), to prepare and adopt an Urban Water Management Plan (UWMP). The act further requires that the UWMP be updated every five years in order to re-assess and add to previously completed plans and updates. The goals of the UWMP include the following: 1. to summarize the historic, current and projected potable and recycled water use for an urban area; 2. to identify conservation and reclamation measures adopted and practiced; 3. to evaluate the ability of the current supply to meet the future demands, including in time of drought and emergency; 4. to evaluate potential alternative supplies available to the area; 5. to evaluate the effectiveness of specific alternative conservation measures outlined in the Act as they apply to the area; and 6. to provide a schedule for implementation for proposed action. The District has completed an update as required in the UWMPA. A draft UWMP is available for review by the public. It includes a historical review of the agency, and its population, water usage and water quality trends. Revised projections of population growth and water demand are included. The roles of imported water and local water resources in the future water management strategy are also presented. Finally, water conservation efforts are reviewed. ENVIRONMENTAL IMPACT: The draft Urban Management Plan is exempt from CEQA in accordance with Section 10652 of the UWMPA. , - , Page 2 of Agenda Bill NO. s+ FISCAL IMPACT: This draft plan has no financial impact, however, the projects and policies that may evolve from its findings could have a financial impact. These impacts would be handled as the projects or policies are implemented. EXHIBITS: 1. Draft Urban Water Management Plan Update. (On file in the City Clerk's Office). -4 Urban Water DRAFT Management Plan A Report to the State of California Department of Water Resources by the Carlsbad Municipal Water District April 7997 1.1 Urban Water Management Planning Act .......................................................... 1 1.2 Carlsbad Municipal Water District ................................................................... 1 1.3 Format of The Report ........................................................................................ 2 2.1 Historic Water Use ............................................................................................ 4 2.2 Demographic Trends and Economic Activities .................................................. 4 2.3 Water Use Categories ........................................................................................ 6 2.4 Water Demand Projections ............................................................................... 8 3.1 CMWD Commitment to Conservation ........................................................... 11 3.2 Elements of CMWD Conservation Programs .................................................. 11 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 Participation in Metropolitan and County Water Authority Regional Conservation Programs .......................................................... 12 Implementation of Conservation BMPs ................................................ 13 Economic and Financial Incentives to Encourage the Efficient Use of Water ..................................................................... 15 Water Use Regulation Through City Ordinances .................................. 16 Public Relations and Education Programs ............................................ 16 4.1 Existing Sources of Water Supply .................................................................... 19 4.1.1 Historical Water Supplies ..................................................................... 19 4.1.2 His torical Water Demands ................................................................... 20 , 4.2 4.3 4.4 4.5 4.6 4.1.3 1995 Water Demand ............................................................................ 20 TDS Levels in Current Supply ......................................................................... 20 4.2.1 Imported Water Quality ....................................................................... 19 4.2.2 Reclaimed Water Quality ...................................................................... 22 Water Supply Management ............................................................................. 22 Transfers and Exchanges ................................................................................. 23 Comparison of Existing Water Supplies with Projected Demand.. ................. .23 Future Reliability and Vulnerability ................................................................ 24 5.1 CMWD Financial Structure ............................................................................. 26 5.2 Water Rate Structure ....................................................................................... 26 6.1 Response to Prior Drought and Other Emergencies ........................................ 29 6.1.1 CMWD Response to 1987- 1992 Drought ............................................. 29 6.1.2 Response to Temporary Water Shortage in January 1995 ................... .3 1 6.2 Water Shortage Contingency Plan ................................................................... 32 6.2.1 Water Usage ......................................................................................... 32 6.2.2 Worst Case Water Supply ..................................................................... 32 6.2.3 Stages of Action .................................................................................... 33 6.2.4 Mandatory Prohibitions on Water Use ................................................. 34 6.2.5 Consumption Limits ............................................................................. 34 6.2.6 Penalties for Excessive Use ................................................................... 34 6.2.7 Revenue and Expenditure Impacts ........................................................ 34 6.2.8 Implementation .................................................................................... 3.5 6.2.9 Water Use Monitoring Procedures ........................................................ 35 7.1 Potential Water Supply Sources ...................................................................... 36 7.2 Evaluation Criteria .......................................................................................... 36 7.3 Comparison of Water Supply Alternatives ...................................................... 36 7.3.1 Seawater Desalination .......................................................................... 36 7.3.2 Brackish Groundwater Desalination ..................................................... 37 7.3.3 Water Transfers .................................................................................... 37 7.3.4 Reclamation .......................................................................................... 38 7.3.5 Stormwater Recovery ............................................................................ 38 7.3.6 Conservation Programs ......................................................................... 38 Appendix A Appendix B Appendix C Appendix D Urban Water Management Planning Act ............................................ A-l CMWD Ordinance No. 3.5 .................................................................. B-l CMWD 1995 Water Quality Report .................................................. C-l Report to Water Quality Control Board ............................................. D-l ..** e * * ..C *...* * c * CI e * * I * t ** I., *.e * *a.**.* e.r.* *.* *** xi Tables 2-l 2-2 2-3 2-4 2-5 3-l 3-2 4-1 6-l 6-2 Residential Population and Housing Trends in CMWD Service Area.. ...................... .4 Employment Data in CMWD Service Area.. ................................................................ .5 Disaggregation of Residential Water Use ...................................................................... 7 Water Use Factors for San Diego County.. ................................................................... 8 Current and Projected Water Use in CMWD Service Area.. ....................................... .9 Publications Distributed by CMWD ........................................................................... 17 School Education Programs Available Through CMWD ............................................ 17 Sources of Water Supply v. Demand in CMWD Service Area.. ................................ .20 Projected Dry-Year Water Supply in CWA Service Area.. ......................................... .33 Projected Normal Year Water Demands and Supplies in CWA Service Area ............ 33 Figures 2-1 Disaggregated 1994 Water Consumption in CMWD Service Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5-1 CMWD Potable Water Rate Historical Trends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 *r I., ..C **,.* *.* * * I.* *.,** P *c + * t. * *.m*.*.* *.* l .*., iv . . . AF .................. acre feet BMP .............. Best Management Practices CFS ............... cubic feet per second CII ................. commercial, industrial and institutional CMWD ......... Carlsbad Municipal Water District CWA ............. San Diego County Water Authority DRI? .............. Drought Response Plan (CMWD) DWR ............. State of California Department of Water Resources FY .................. fiscal year GPF ............... gallons per flush IICP ............... Incremental Interruption and Conservation Plan (MWD) IID ................ Imperial Irrigation District IRP ................ Integrated Resources Plan (MWD) .............. million acre feet mg/L .............. mill&rams per liter MGD ............. million gallons per day MWD ........... Metropolitan Water District of Southern California NCWA .......... North County Water Agencies SANDAG ...... San Diego Association of Governments TDS.. ............. total dissolved solids ULFT ............ ultra-low flush toilet VID ............... Vista Irrigation District ..* l * * l ...* s *.*...a *.* *,.* I s..* * *.* * l .*...* * + * * *.* “&z Introduction This report has been prepared in response to Water Codes Sections 106 10 through 19656 of the Urban Water Management Planning Act (Act), which were added by statute in 1983, Chapter 1009, and became effective on January 1, 1984. This Act, which was Assembly Bill (AB) 797, requires that “ . . . every urban water supplier providing water for municipal purposes to more than 3,000 customers or supplying more than 3,000 acre feet of water annually to prepare and adopt, in accordance with prescribed requirements, an urban water management plan.” The Act requires urban water suppliers to file plans with the California Department of Water Resources (DWR) every five years describing and evaluating reasonable and practical efficient water uses, reclamation, and conservation activities The Act has evolved since its passage in 1983. There have been several amendments to the Act, with the most recent being in 1994. Some of the amendments provided for additional emphasis on metering, drought contingency planning, and recycling and reclamation. The process of refining the Act continued in 1995, when efforts were made to further develop and clarify various aspects of the Act. The Carlsbad Municipal Water District (CMWD) prepared and adopted Urban Water Management Plans in 1985 and 1990 and filed those plans with DWR. This Urban Water Management Plan is an update of the 1990 plan. There have been a number of changes in CMWD’s water planning and management activities since the 1990 Plan. For example, the District has been more actively involved in water conservation ac- tivities, implementation of a Water Reclamation Master Plan, and pursuing alternative local water resources. Formation and Purpose The City of Carlsbad was incorporated in 1952. Water demands for the area were initially provided by the privately held Carls- bad Mutual Water Company through the utilization of local supplies. Subsequently purchased by the City, the Mutual Water Company constructed a series of wells, pumping stations and transmission facilities to quench the thirst of residential, commercial and agricultural users. The Mutual Water Company obtained rights to 2,382 acre feet of water from the “Mission Basin” of the San Luis Rey River Valley in western Oceanside, and held a license by the State Division of Water Rights for another 1,000 acre feet annually. Additionally, water rights for 150 acre feet annually were held from Calavera Creek and . . . a lesser amount from Agua Hedionda Creek. The original license was for irrigation purposes and was later changed to recreational and fire protection purposes. As demands for water increased, another problem was being realized with the existing water system. In times of high demand, seawater intrusion occurred when water levels within the San Luis Rey River basin dropped. The gradual degradation of water quality prompted the Mutual Water Company to abandon all attempts to utilize this water. This created the need for imported sources. CMWD was formed as a vehicle to import Colorado River water into the City of Carlsbad and the surrounding areas. Its first meeting was held on March 22, 1954. CMWD became a member of the San Diego County Water Authority (CWA) the same year. In January 1990, CMWD became a subsidiary district of the City of Carlsbad. The agency is governed by the Carlsbad City Council acting as the Water District Board of Directors. The pre-merger Board now serves as the District’s Water Commission. The District has 56 employees with the responsibility of providing administration, engineering, field operations, sewer maintenance services, conservation, and public education. This is accomplished through four departments: administration, engineering, operations and construction/ maintenance. One managerial position exists to head each department. The General Manager has the responsibility for daily operations and reports directly to the Executive Manager (City Manager). Service Area Entirely within the City of Carlsbad’s boundaries, CMWD’s service area covers approximately 32 square miles and serves 85 percent of the City. In 1995, the District supplied 14,700 acre feet of water to a population of 58,000 through more than 18,000 service connections. Conveyance, Treatment and Distribution Facilities CMWD purchases treated water from the San Diego County Water Authority, which purchases water from the Metropolitan Water District of Southern California. The District has approximately thirteen days of storage capacity at average daily demands (total storage is approximately 252 million gallons). Eleven water storage tanks and one earthen dam reservoir provide water for Carlsbad through 400 miles of distribution system pipelines. In 1990, the City of Carlsbad adopted a Reclaimed Water Master Plan. This plan covers the development of reclaimed water systems throughout Carlsbad until buildout (estimated to occur in the year 20 15). The City is in Phase II of this five-phase plan. The chapters in this report correspond to the outline presented in the Urban Water Management Planning Act, specifically Sections 10631. 10632 and 10633. The individual chapters corresponding with the specific provisions of the Act are noted below: Chapter 2. Water Demands §10631: (a) past, current and projected potable and recycled water use; ( 1) water savings from conservation measures by user 5 10633: alternative water management groups. practices. Chapter 3. Conservation and Public Affairs Promrams 9 1063 1: (b) ( 1) adopted conservation and reclamation measures: (c) alternative conservation measures; (d) schedule of implementation (of proposed actions); (g) methods to evaluate effectiveness of the conservation measures; (h) steps necessary to implement proposed action; (i) findings, actions and planning relating to water conservation measures; (j) encourage recirculation of water; (k) actions and plans to enforce conservation; (m) community involvement for water management plan- ning. §10632: (a)(5) incentives to alter water use practices; (a) (6) public information and education programs. Chapter 4. Existinn Water Sup& and Manazenaent § 1063 1: (b) ( 1) reclamation measures adopted and being practiced. §10632: (a)( 1) recycled water; (a) (2) exchanges or transfer of water on a short-term or long-term basis; (a)(3) management of water system pressures and peak demand. Chapter 5. Water Pricing and Rate Structures ~$10632: (a)(7) change in pricing, rate structure and regulations. Chapter 6. Drounht and Emergency Management §10631: (e) p rovide an Urban Water Short- age Contingency Plan; (f) frequency and magnitude of supply deficiencies. Chapter 7. Evaluation of Alternatives Q10632: (b) plan preparation, coordination with wastewater and planning agencies. . . Water use within CMWD’s service area is related to a number of climatic, demographic and economic factors. Increases in population and regional economic growth, while slow in recent years, have influenced water use in the past and will continue to do so in the future. Southern California experienced dramatic economic growth during the 1970s and 1980s. During the early 199Os, however, the rate of economic growth declined due to the severity and duration of the recent recession. The recession in California was led by declines in the manufacturing sector; particularly hard-hit were the defense and aerospace industries. Statewide job losses during the recession were concentrated in Southern California, which accounted for almost 75 percent of California’s total job losses from 199 1 to early 1993. Water facilities are part of the region’s Water Demand infrastructure system in the same way that electrical power, natural gas, waste treatment and other utilities are considered infrastructure. Therefore, development for an appropriate and adequate water supply infrastructure is dependent on the anticipated level of growth for the region. Economic growth in Southern California depends upon national and international economic factors (e.g., interest rates, unemployment, capital spending trends) as well as regional population and job growth trends. Population, housing and employment growth in CMWD’s service area are assumed to occur at levels projected by the San Diego Association of Governments (SANDAG) in its Series 8 Regional Growth Forecast. Population and Housing Growth SANDAG estimates indicate that over TABLE 2-1 'fi:, ai~~~ai~~~~~~~~:~~~:: ,:.:. :::,j, .:I: :"' 'f "':l:;,:::::ii,,:::::.i.::,~:::::~~:~:~:~; " :.::i'li'iil'l~~~~~~~nPI~~~,~: 'i'i:~~,~~~f'3~;::., ii:~~~~~~~r~~;!;;gI :“ 15,990 17,640 21,479 30,656 91.7% jjj:;;: : .:. :~.~~~~~~~sci:iii!:iii:ii::l::.il: /. :':':'I:..':.& ~~:~>,~.:.'.:;;~,~ :<:/ :,: :,/,. /,, 7,991 1,272 8,602 1,273 10,125 764 12,160 256 52.2% -79.9% .;. 218 218 218 '218 0.0% Source: SANDAG Series 8 Regional Growth Forecast, 1995 . . ..L*.~*.~****=.*..**.*..~*.**~*.*.~~**.*‘.~***.4 - - TABLE 2-2 Sourcs: SANDAG Series 8 Regional Growth Forecast, lgg.5 (Interlm Forecast, 5/95) 60,000 people resided in CMWD’s service area in 1996. Population projections in the CMWD service area for the years 1996 through 2015 are shown in Table 2-l (page 4). Approximately 40,000 additional people are expected to move into CMWD’s service area by the year 20 15. Persons per household will remain constant at 2.4. SANDAG forecasts steady growth in residential housing. The total housing stock is expected to increase 70 percent by the year 20 15. The vacancy rate is forecasted to decline from 8.6 percent in 1990 to 4.6 percent in 20 15. Table 2- 1 depicts future projections for population and housing increases through 20 15. Industrial and Commercial Activities Carlsbad has prospered by attracting a broad range of industries, who in turn provide a diverse employment base. This is projected to continue in the years to come. Current major employers include the Plaza Camino Real shopping center, Callaway Golf, Cobra Golf, Donjoy, Upper Deck, Puritan Bennett and the La Costa Hotel and Spa. Table 2-2 details past, current and projected trends for the employment base within CMWD’s service area. Ewnomic Trends and Growth Management As stated earlier, the level of economic growth within the entire region depends upon national and global economic factors. The effects of increased development in the 1980s were felt around the country, and probably nowhere more severely than Southern California. Carlsbad’s desirable location, situated on the coast 35 miles north of San Diego, makes it a prime area for increased levels of growth and development. In order to manage this growth, the City of Carlsbad adopted a Growth Management Program. This program assures the adequacy of public facilities and services by providing them concurrent with growth. The purpose of the program is not to stop or control growth, but rather to manage residential, commercial and industrial growth based upon compliance with facility-based performance standards. . . - Water demand within CMWD’s service area declined in the early 1990s as a result of drought rationing, the economic recession and the cooler and wetter weather experienced in 1992 and 1993. Since then, water use has remained relatively constant. In order to better understand water use trends and characteristics, total water consumption has been disaggregated into six major categories: residential, commercial, irrigation, agriculture, reclaimed and industrial. Water usage by these sectors in 1996 is depicted in Figure 2-l. Residential Water Use Although single-family homes currently account for 64 percent of the total housing stock in Carlsbad, they currently account for over 76 percent of total residential water demands. This is due to the fact that on a per housing basis, single-family households tend to use more water than households in a multi-family structure (e.g., duplexes and apartment buildings). Reasons for this indicate that, on average, single-family households tend to have more persons living in the household and are likely to have more water-using appliances and fixtures, and tend to have more landscaping per house. In Carlsbad, residential water use varies according to season and type of use, as shown in Table 2-3 (page 7). For example, residential water demand in the month of March represents 56 percent of the total water demand within the CMWD service area. By contrast, residential demand in the month of August represents only 42 percent of total demand. With regard to type of use, it is estimated that about 70 percent of residential water demands are for indoor water use purposes, while 30 percent are for outdoor water uses. Table 2-3 breaks down residential demand into seasonal and non-seasonal components, as well as specific end uses. This information was developed with the assistance of the Metropolitan Water District, and will give staff an increased understanding of potential water savings due to conservation measures. Industrial and Commercial Water Use Single Family Commercial 16.1% ‘. l . ‘. l . , .’ I’ .’ 4’ Residential 48.2% Multi- Family 24.1% . TABLE2-3 .__---- - &$$$@g &%x+$:; $$g!& 27.9 31.3 16.1 @$&;::;;;: d-...<.. ,.,.,.,., ,.,., 20-30 25-35 10-20 ,’ 69.6 65.4 82.2 C'.. '; . 65-75 60-70 75-85 25.1 22.2 31.2 ::...::.; :.: . . . . .,.,. ,‘, ,’ ‘. .,., .,. ;; ::. 1;: :.‘,,:‘:::‘.‘,:. ‘. ,; ; ..:., 20.2 18.3 25.6 .:. .,; :. i,:;~.,:~::~.):','.:~~,'.:'~.:.: ; .:; :::: ..:;:':' .A".. :. ,' ",.,L ; 13.2 14.4 12.3 :,j::/j:j,;::: :,,,, .; : : ....:.::.:.q ,: :., '. .'. :' "'..".'..'.".: : .;;' :,.. ,' .I; y,::::., ,' ':, : .:.., ', :'. 8.5 11.5 ::/ 9.0 ,. ::. ::... ':: : ,: .;, :, ,:, ,: ). .:~~'~.~'~:::~ '1': ;::':: ::;,;, . . . ,. 2.1 2.0 1.6 ;.:1~1:~~..1.a:1:1:1:,.~ ::......... I..: ,, j ~~~~:..::~~?:.: ::::,:;,/;,:,~, :.:.:.,.:.: :.. ,,,,:,: :. :;.::. ..: :, :i,:,i:~:i:~:::::::::.::,:: .‘. F.‘. ..‘: .:... .,. : ., ., ., ., ., ., ., ., ., ., ., ., ., .,.,. .,. . . ..::y .,:, ::.y.: ,.,.,.,.,.,.,.,..,.,.,,,,,,,,,,, :::,:,,::;,: 1 ,,,,,,,,,,,,,,, ,,, ,.,: 30.4 34.6 17.8 :~::,::::::::i.:::'::iI':il'lil:l:::::l:.c c:;::~~~~~~ 25-35 30-40 15-25 ~~~ 27.2 30.8 16.1 :$::y&,& 1.6 2.0 0.4 1.4 1.8 0.9 0.2 0.0 0.4 Industrial sector water demands amount to the smallest sector of annual water demands. Currently averaging only 2 percent, the seasonal variation fluctuation varies from 2.9 percent in March to 1.8 percent in August. This minor seasonal variation is due to low exterior water demands. Commercial water demands also exhibit minimal seasonal fluctuations, with the March demand equal to 20 percent and the August demand equal to 15 percent. Overall, commercial demand represents 16 percent of the total water demand in the CMWD service area. Commercial water use is a function of total commercial employment (i.e., the number of employees) in the service area. It also depends on the mix of commercial activities that are present. In general, however, commercial water use is similar to residential use in terms of seasonal/non-seasonal and indoor/outdoor components. Im*gation Water Use The effects of seasonal differences will have an obvious influence on irrigation demands. Just ahead of commercial water use, irrigation is the second largest water use in the CMWD service area. Carlsbad’s development over the last decade and a half has brought about the creation of large amount of irrigated areas with various uses, including medians, slopes, parkways and parkways. Seasonal fluctuations range from 6 percent of total demand in March to almost 20 percent in the month of August. The City of Carlsbad adopted a Landscape Manual in 1990 to assist development applicants and landscape architects in understanding the City’s policies toward landscaping. Specifically, the manual requires that irrigation systems be designed to provide the optimum amount of water for plant growth without causing soil erosion or runoff. At the same time, the document requires that landscape design will include water conservation and alternative (non- potable) water sources as primary criteria. CMWD sells approximately 1,000 acre feet per year of reclaimed water for use by customers with irrigation demands. These customers use reclaimed water to irrigate golf courses, median strips and landscaped areas. In 1997, the Carlsbad Flower Fields will be converted to using reclaimed water. Agricultural Water Use Agricultural water have been decreasing in Carlsbad for the last decade and a half. In 1982, this sector accounted for over 32 percent of total water demands. In 1996, this figure was only 8 percent. This sector experiences wide seasonal fluctuations due to weather conditions and timing of the growing seasons. In March, agriculture accounts for 6.1 percent of total consumption in comparison to 9.3 percent in August. Reclaimed Water Use As noted earlier, CMWD sells approximately 1,000 acre feet per year of reclaimed water. Reclaimed water is used only by irrigation customers. These customers use the water to irrigate golf courses, median strips and landscaped areas. Overall, reclaimed water use represents approximately 8.3 percent of total water use in the CMWD service area. Wide seasonal fluctuations occur with reclaimed water use. In March, reclaimed water represents just 2.6 percent of total water use, while in August, it represents 11 percent. Reclaimed water use is lower in the winter to avoid potential runoff into lagoons and the ocean during rainy weather. The City of Carlsbad adopted a Reclaimed Water Master Plan in 1990 which implements five phases. The District is currently in Phase II. The Master Plan covers the development of reclaimed water systems throughout Carlsbad until buildout, which is estimated to occur in the year 20 15. In forecasting residential demand, several factors are taken into consideration, including population, housing mix, TABLE 2-4 Popu!ation (gallons per capita ‘@r day) 178 187 198 ~~~~~~~~Dly (gal~~~~i h;&$ng ~~~~~~~~~:~ :. “! ; ‘,O :,” ,( ;,,, :,,‘:~~;~~~~~~~,~~~~~.~ .(, (,,,,,,, ..‘<:,‘.:.“. ..:: ..~ ..~ ~~:.~~~:,. ,,: ., ‘. ‘:~~~::‘~~,‘:‘,,‘::,‘,‘:::“::::::.~”:,~”” ,” .:.:.r.+: ~oo..il’~~~~~~~~~$‘1~. ...; .,~~~~~~~~~~::~:~i ‘:, ,:: :. .>:..*>s.> . . . . . . .<<<</<y*>s> ,... ;: ,‘. Multi-family (gallons per ,hou+ng unit per day) ‘i60 256 249 “~~~lerciaulndu~~~~~~~l~?~~ .:: ..: ‘:‘:“,~~~~~~;~~ha I:‘,,.k,‘<,’ ; ,‘. :,~~:~~~~~~~~~.:, : ,:: ~:~~~~~~~~.‘ii;::: ,; %’ -ee - . . . . ~=-=.< .,. “Source: ‘: .‘:‘:‘;,::~~~~~~~~~~~ :.:.: j:‘: :&&$&, :,, .,. ,, ,:,:,.~~~~~~~~j~~~~~~ .:.I.:. g:,.y ;; :,,,: ., Metropolitan Water District of Southern California TABLE 2-5 : Average Day Demand :: household occupancy, household income, weather conditions and conservation measures. In the case of commercial and industrial water use, projected demands are a function of employment in commercial, institutional and manufacturing establishments as well as water and wastewater prices and conservation measures. Projected Water Use Projected water use in the CMWD service area was calculated by multiplying projections of long-term demographics (population, housing and employment) with their respective water use factors, as shown in Table 2-4 (page 8). In addition, projected water use incorporates current and future water demand management (conservation) efforts. CMWD is committed to implementing a number of long-term water conservation measures, specifically those referred to as Best Management Practices (BMPs). The effects of these conservation BMPs are reflected in demand projections. The water demand forecast results in Table 2-S show that water use in the CMWD service area is projected to increase almost 200 percent by the year 2015. Factors Influencing Future Water Use The total water use in CMVVD’s service area is expected to grow because of the continuing increases in population and employment in Southern California. However, the growth in water demand may be higher or lower than the rate of population growth, depending on a number of forces that are known to influence water use. Water demand forecasts are not solely a function of population, housing and employment increases or decreases. Average rates of water use (in gallons per capita per day, gallons per housing unit per day or gallons per employee per day) are also expected to change over time. Even without the impacts of water conservation, the average rates of water use can change over time because of other changing demographic and economic characteristics. For example, changes in housing mix (single-family versus multi- family), employment mix (within the non- residential sector), income, persons per household and other factors can affect rates of water use. Trends Causing Increases in Water Use Several trends will tend to increw water use rates in the future. These include: 1. Increasing household income. Increases in income will lead to home improvement investments. These expenditures often include water-using appliances and installations (e.g., additional landscaping and cooling systems). Increases in real income may also translate to larger lot sizes with greater landscape watering requirements. 2. A decreasing share of multi-family housing units in total housing stock. Because multi-family structures share landscaping and swimming pools, and generally have fewer water-using appliances (i.e., washing machines, dishwashers, etc.), the average water use is lower than in detached single family residences. Currently, housing units in multi-family structures represent just over 31 percent of the total housing stock in the CMWD service area. This figure is expected to decline to 28 percent by the year 20 15. 3. An increasing regional per capita product. Demographic projections indicate that a greater share of the population will be employed in the coming decades, causing the gross regional product to grow faster than population. This, in turn, will cause per capita rates of water use to increase. 4. Decreasing household size. Between 1970 and 1990, the average household size decreased. Although this trend is slowing, the result is that more housing units will be built per capita. This trend will result in slight increases in per capita water use. Trends Causing Decreases in Water Use Several trends are expected to decrease water use in CMWD’s service area. The major influences in this category are described as follows: 1. Employment mix. The distribution of employment and economic activities is constantly changing, thus affecting the use of water in the commercial and manufacturing sectors. As employment shifts from the relatively water-intensive manufacturing sector to lower-intensive commercial/institutional sector, this can have the effect of decreasing water use per capita. 2. Plumbing codes. The use of water- efficient fixtures is required by California law and the 1992 National Energy Policy Act. New and remodeled construction must meet the water efficiency standards for toilets, showerheads, faucets and urinals. As newer building stock is added to the existing stock, this will cause average rates of water use to decrease. 3. Conservation programs. Reductions in water use will result from the implementation of Best Management Practices (BMPs). These include residential retrofit programs, leak detection and repair programs, landscaping water efficiency measures (including education about water practices and low water-using plants), and other measures outlined in subsequent sections of this plan. 4. Changes in retail prices. Price increases (in real terms) provide incentives to consumers to use water more efficiently. Water demand studies conducted by the Metropolitan Water District indicate that during the 1980- 1992 period, single-family residential customers decreased, on average, their water use by 0.185 percent for each 1 .O percent increase in the marginal price of water (net of inflation). An average reduction of 0.157 percent per 1 .O percent increase in price was found in all other types of residential housing. Business and industry showed the lowest response of 0.106 percent reductions for 1.0 percent increase in price. The water use factors shown in Table 2-4 account for these influences on the average rates of water use over time. These water use factors were used by CMWD, in conjunction with demographic projections, to forecast water demands. . . Conservation And Public Affairs Programs Southern California faces the challenge of providing a reliable water supply for an expanding population. Conservation plays an important role in planning to reliably meet future water demand. By making wiser use of water, the need for new sources of supply can be lessened. The Carlsbad Municipal Water District recognizes water conservation, or demand management, as a priority in any resource strategy developed for the city. CMWD has developed a variety of effective approaches to water conservation, both independently and in conjunction with the San Diego County Water Authority and the Metropolitan Water District. CMWD is committed to conservation as outlined in the Memorandum of Understanding Regarding Urban Water Conservation in Calijhnia. The District will make good faith efforts to implement the Best Management Practices (BMPs) outlined in the MOU, to develop new cost-effective practices and to initiate these practices as they become feasible. LonpTerm Pmgram Goal The long-term goal of CMWD’s water conservation program is to achieve and maintain a high level of water use efficiency in our service area. The specific objectives include: l elimination of wasteful practices in water use; l development of information on both current and potential conservation practices; and l timely implementation of conservation practices. The five major components of CMWD’s water conservation program are: 1) Participation in the regional conservation programs being implemented or developed by the Metropolitan Water District and the County Water Authority. 2) Implementation of conservation BMPs. 3) Economic and financial incentives to encourage efficient use of water. 4) Water use regulation through city ordinances. 5) Public relations and education programs. Each of these components plays an important role in the implementation of demand management measures, and is discussed in subsequent sections. Both Metropolitan and the County Water Authority offer regional programs and activities to their member agencies. These measures are designed to incorporate water conservation into short-term and long-term water management plans. ULFT Voucher Program Through this program, participating customers are offered a voucher redeemable with local plumbing dealers for up to $75 off the purchase price of an approved ultra-low flush toilet (ULFT). Single-family, multi- family, commercial, industrial and institutional customers are eligible to participate. Horizontal-Axis Clothes WashinK Machine Rebate Program This program offers customers a rebate of $100 for the purchase and installation of a new horizontal-axis clothes washing machine. This program generates both water and energy savings and is available to single- family, multi-family, commercial, industrial and institutional customers. It is offered in conjunction with San Diego Gas & Electric. Public Institutions Plumbing Retrofit Program The plumbing retrofit program provides direct funding assistance to public agencies to purchase 1.6 gallon per ULFTs to retrofit select public facilities such as libraries, schools, park and recreation centers, fire stations, city administrative offices, etc. The County Water Authority and Metropolitan fund the purchase cost of the ULFTs, and the public facility participants are responsible for insuring ULFT installation. Commercial, Industrial and Institutional (CII) Survev Program The CII Program offers complimentary surveys to the top 10 percent of all CMWD’s commercial, industrial and institutional water customers. The purpose of the program is to offer cost-effective recommendations to CII customers on how to reduce their facilities’ water consumption without affecting processes or production levels. Large Turf Water Management Prowam This program provides a survey of the irrigation system and landscape at sites with two or more acres of irrigated landscape. Using methodology developed by Cal Poly San Luis Obispo, the surveyor performs catch-can tests, makes numerous soil and plant observations, and calculates irrigation schedules. Agricultural Water Management Program This agricultural program provides irrigation system evaluations to agricultural properties with two or more acres of irrigated crop or grove. The surveyor makes observations of the plant material, soil and irrigation system. Emission uniformity and pressure readings are determined for the irrigation system and recommendations are given along with crop data and industry information about the particular type of irrigation equipment in use. Residential Survev Program CMWD’s Residential Survey Program provides water conservation surveys to all . . customers upon request. This survey is conducted free of charge. The District’s Water Conservation Specialist, a certified irrigation auditor, completes a thorough interior and exterior water usage analysis, including reviewing water history with the customer, checking for leaks, assisting in the installation of low-flow showerheads and faucet aerators (provided by CMWD), and suggesting an improved irrigation system. . Water Hunt Pmgram In 1994, CMWD participated in MWD’s Water Hunt Program. This program combined water conservation education with the distribution of low-flow showerheads in a low-cost package program. School children from kindergarten to grade six conducted home water audits with the help of a treasure hunt-style map. By following directions on the map, the students found water waste in the home, and determined if low-flow showerheads or toilet-displacement devices were needed. The students then returned the Water Hunt audits to the classroom. Distribution Svstem Water Audits, Leak Detection and Repair In 1994, CMWD participated in a County Water Authority-sponsored Distribution System Water Audit. After accounting for all metered uses, authorized unmetered uses and known losses, the resulting amount of unaccounted-for water, expressed as a percentage of supply, was found to be 2.74 percent. A large portion of this unaccounted- for water is attributed to seepage and evaporation from the lake at Maerkle Dam. Information derived from the water audit was used to determine the need for leak detection and repair programs. It was also used to determine the accuracy of sales meters on the treated water system, which was found to be over 98 percent. In 199 1, the Department of Water Resources circulated a document outlining Best Management Practices (BMPs). These BMPs are urban water conservation practices intended to reduce long-term urban demands. They are part of an overall state water management planning program which recognizes the need to provide reliable urban water supplies and protect the environment. CMWD has implemented a variety of conservation measures designed to meet the goals outlined in the BMPs. These measures, along with the corresponding BMP, are as follows: 1. Interior and exterior water audits and incentive programs for single-family residential, multi-family residential and governmentaUinstitutiona1 customers. CMWD has offered water audits to all residential, commercial, industrial and institutional customers since 199 1. These audits are free of charge and are currently funded entirely by the District. CMWD averages 300 audits per year. Audit components include: reviewing water usage history with the customer, checking for leaks inside and outside, checking for low water use plumbing devices, inspecting irrigation systems, recommending improvements and providing conservation literature. 2. Plumbing, new and retrojt. A City ordinance was adopted in August, 1991 which requires ULFTs in new construction and retrofits. State legislation effective January 1, 1992 requires the installation of efficient plumbing in new .**.CI.*.**.e***.~l.***.***.~**~.**.**~*.**.~.*~. x3 , construction (1.6 gpf toilets; 2.5 gpm showerheads; 1.0 gpf urinals; and 2.2 gpm kitchen/bathroom faucets). State legislation effective January 1, 1994 requires that only ULFTs be sold in California. CMWD offers free faucet aerators, water-saving showerheads and toilet tank devices to all customers. 3. Distribution system water audits, leak detection and repair. A system audit for CMWD was conducted by an independent engineering firm in 1994. Results showed that less than 3 percent of the water in the potable system is unaccounted for. A large portion of this is attributed to seepage and evaporation from the lake at Maerkle Dam. Audit results also showed that our water meters measure the amount of water used within the normally accepted range of accuracy. 4. Metering with commodity rates for all new connections and retro$tting connections. All of CMWD’s services are metered. 5. Large landscape water audits and incentives. CMWD’s Water Conservation Specialist has been trained to conduct turf audits. In addition, the District has the equipment and software to perform them in-house, and have been doing so since 1991. Currently, large turf audits (> 2 acres) are conducted by the Mission Resource Conservation District and funded by the County Water Authority. 6. Landscape water conservation requirements for new and existing commercial, industrial, institutional, governmental and multi-family developments. The City of Carlsbad’s landscape ordinance sets forth water conserving landscape design and irrigation techniques as requirements for new developments. 7. Public information. CMWD has an extensive public information program, including: a quarterly newsletter mailed to all customers, computerized landscape advice, water awareness calendars, a speakers bureau, bill inserts, information on the water bill regarding previous usage, an annual promotional event at the local mall, information booths at Village Fairs, various promotional campaigns, and membership in NCWA, a consortium of 11 water agencies. 8. School education. CMWD has education programs available for all elementary grade levels, such as: Water Wabbit (I<-1st); annual poster contest (4th); watershed awareness program (2nd & 5th); water quality education (high school); Admiral Splash (4th); and California Smith, W.I. (6th). 9. Commercial and industrial water conservation. Water audits are offered free of charge to all small and medium commercial and industrial customers. Large customers are addressed through a joint audit program with MWD. 10. New commercial and industrial water use review. This BMP involves the review of proposed water uses for new commercial and industrial water service before completion of a building permit. CMWD has not yet implemented this requirement. 11. Conservation pricing. CMWD currently has a conservation rate of $1.52 available to all customer classifications based on water usage relative to meter size. 12. Landscape water consewation for new and existing single-family homes. CMWD currently offers computerized water-conserving landscape advice for individual customers. In addition, residential water audits provide valuable information on outdoor water conservation. Literature on this subject is also available. 13. Water waste prohibition. In 199 1, CMWD adopted the Carlsbad Water Ethic which specifies responsible water use and is designed to promote the most reasonable, wise and efficient use of water Carlsbad. Practices include: 4 New landscaping shall incorporate drought-tolerant plant materials and drip irrigation systems, wherever possible. 4 4 4 4 4 Water can never leave the user’s property due to over-irrigation of landscape. Watering must be done during the early morning or evening hours to minimize evaporation (between 4:00 p.m. and 9:00 a.m. the following morning). All leaks must be investigated and repaired. Water cannot be used to clean paved surfaces, such as sidewalks, driveways, parking areas, etc., except to alleviate immediate safety or sanitation hazards. Reclaimed or recycled water shall be used wherever and whenever available. We also have an ordinance for water cutbacks that addresses water softeners, cooling systems, car washes, commercial laundries, and decorative fountains. 14. Water consewation coordinator. CMWD has one full-time Water Conservation Specialist and an analyst devoting half-time to conservation coordination. 1.5. Financial incentives. Financial incentives from CMWD to facilitate the implementation of conservation programs include: public facility retrofits to purchase and install water-saving plumbing devices; irrigation assistance, to purchase devices to improve the efficiency of irrigation systems; and $75 ULF toilet vouchers, for the replacement of older toilets. 16. Ultra-low flush toilets. CMWD has offered rebates and vouchers worth up to $75 for the replacement of older toilets with 1.6 gpf ULF toilets. Several thousand rebates have been issued to Carlsbad customers since the program’s inception in 1990. The current program is limited to vouchers only. Significant conservation effects can be achieved by certain features of water rate structures. CMWD’s rate structure offers a conservation rate of $1.52 per unit t all customers based on water usage relative to meter size (see Chapter 5 for more details). In conjunction with Metropolitan and the County Water Authority, CMWD also offers direct financial incentives to participants in the following programs: . Ultra-low-flush toilet vouchers ($75 each); l Horizontal-axis clothes washer rebates ($100 each); and l Public institutions plumbing retrofit (amount varies by institution). In 199 1, the CMWD Board of Directors adopted Ordinance No. 35 establishing a water conservation program. This ordinance, included as Appendix B, was established based on the need to conserve water and to avoid or minimize the effects of any future shortages. Ordinance No. 35 specifies six stages of conservation, ranging from the Stage 1 “reasonable use of water” to the Stage 6 mandatory 40 percent cutback. Customers are notified of any stage beyond Stage 1 through mass mailings, public announcements and newspaper advertisements. Further details of CMWD’s water conservation stages will be discussed in the Water Shortage Contingency Plan in Chapter 6. Ordinance No. 35 also endorses the Carlsbad Water Ethic, which was discussed in Section 3.2.2. CMWD continues to develop and implement public relations and education programs that teach and encourage efficient water use. Through these programs, CMWD has adapted to both drought and non- drought conditions by ernphasizing the benefits of water conservation during times of emergency and times of normal water availability. With the assistance of Metropolitan and the County Water Authority, CMWD is able to provide innovative programs that show our customers how to change their water behavior without changing their lifestyle. To get water conservation messages to homes, schools and workplaces in the community, CMWD pursues three main programs: 1) Public information. 2) Education programs. 3) Community relations. These components are designed to encourage customers of all ages to integrate conservation measures into their daily lives. Public information campaigns and the related education programs will continue to be an important part of CMWD’s water management and conservation efforts. Public Information Public information is an integral part of any water conservation program. This aspect is crucial to the success of any agency’s ability to realize actual water savings. One of the key features of CMWD’s public information program is the literature distributed to encourage water conservation as a way of life in Carlsbad. Through these publications, the District is better able to illustrate the concepts and objectives of water conservation. To keep CMWD customers apprised of local water activities, the District publishes a quarterly newsletter, Tt%e IV&&e. This newsletter is included with the water bill and discusses issues directly related to the services provided by CMWD. Literature is collected from a variety of professional water organizations, including MWD, CWA and the American Water Works Association. These publications address a myriad of issues, and many are available in Spanish. Table 3- 1 on page 17 TABLE 3-1 Education Programs The Waterline . . . . . . . C%WD ,, ,,, ,.,::. ~~~~~~~oc .pri!~~~~~~~~~~~~~~~~~~~~~~~~~~‘~~~~~~ :-i*:.: ,.,.,. :,. F*>> ,.,.,.,.,.,. ..,.:., ,: ..,:,:,:,:,,~,~~:~.~.:,:.:~~:,~~~~~~?:’:.~ : :::‘i.:...~...~~~~~~~~...~~ .,,.. 1.. *<xx-- .“----, :; . . . . . . . . . . **>.:: _ ~~;~,;:.:,:.~~&g*~ Splash Activity Book AWWA .‘... ~~~~~~~“~~~?:‘,‘,‘.‘,’ ,‘~I”~~:~~~~~~ ~~~ : ‘j, : .~ The Day iKg<water StoYLg ,,~~~~~~~~~~~cve.~~~~~~~~,:~,::: “i. .: &&jjA ,. ,. ,:; .<:?*<*~.:.~< :;;, :,, ,, “‘y..::. .,:... <s&m> ,‘, :. Sunset you Can Make A Difference MWD ~q;::::::::::.‘.: :< /. .’ ‘.’ .’ .‘.’ . .,.,.,.,.....,.,.. >...m&3$$A., ,,,, .,.,.,. I..:~,.:~ ..?... . . . . . . .,.,. :., :.. :: < ::.ii::~~~~~~~~~~~~~~~~~~~~~~~~:.:.:.:.~.’. gJti@jik tktpr,~~~~~~.. ::I 1: : ::; ~:,~~~~~~~~~~~~~~~~~ ‘: ;,: !,:,:~~~~;~*>~~: .,. ;. : ,: ‘:T;:‘::, :.,:,. _ : ,,, ,, ,.,. ,.* .,.. . :: .?:?“,:::.:‘- .’ Hard Facts About Soft Ii&r CWA :‘,‘,:,‘,‘,:~~~~“‘:“:“‘:“‘:: $ / ,‘. .‘,:<pcE:Ti ::,:; 1, ::‘: ;; ..:, .$..‘: ,:.; )’ ,,, ;; :,:,.y: .y:; i,sz~.. : .: ; ., ,.,.,,. ., ,,, : ~~~:~~~~~~qrrrv :::‘: :iii~Fiii;;:;~~; ; :$ y<(t: ;.‘.:::::‘,:::;: .~~~~~~~~.I ‘H.0 Tadav ” CWA ” Save Water Now - Here’s How CWA How Safe is Safe? Water Talk ..-_-. .-... CWA _ Conserve Water As A Rule AWWA Key: AWWA = American Water Works Association CMWD = Carlsbad Municipal Water District CWA = San Diego County Water Authority EBMUD = East Bay Municipal Utility District MWD = Metropolitan Water District WEF=Water Education Foundation lists the publications available to CMWD customers. Many of these publications have been incorporated into the District’s education programs. CMWD maintains a video library available to customers and educators on a loan-basis. Topics covered by these videos include San Diego water history, water-wise gardening, the hydrologic cycle and policy issues facing California. In conjunction with Metropolitan and the County Water Authority, CMWD provides school education programs for virtually all grade levels. CMWD is able to provide presentations, literature, videos and a water quality testing kit to classrooms from elementary through high school levels. In addition, teacher in-services and seminars are available through the County Water Authority. Table 3-2 lists the educational programs available through CMWD. Communitv Relations In addition to school programs, CMWD strives to help the public understand the importance of infrastructure projects and water conservation through a community relations program that includes a speakers bureau, appearances at community events, water bill stuffers and messages, computerized landscape advice, various promotional campaigns and an annual water awareness event. A few of these programs are discussed below. Computerized Landscape Advice CMWD offers customers computerized landscape advice through the PlantMaster” Elementary l Water Wabbit l Admiral Splash l California Smith, W.I. l All About Water l Where in the World is Water? l Watershed Awareness l Geography of Water l Water Awareness Poster Contest l Mobile Science Van l Travelina Water Librarv program. This program is able to give customized advice by taking various customer specifications on plant materials, such as soil type, sun exposure, water needs, bloom color, etc., and generating a list of plants that match those needs. Customers can then take the plant list to a nursery and make their purchase. Promotional Campaigns CMWD is a member of North County Water Agencies (NCWA), a consortium of eleven water agencies in northern San Diego County who have come together to promote water conservation in the most efficient and cost-effective way possible. As a member of NCWA, the District has participated in numerous promotional campaigns, including: l Chill Out! Campaign, encouraging customers to chill tap water before drinking, eliminating the chlorine taste. l Don’t Let Your Water Conservation Eforts Evaporate, a campaign slogan that has become synonymous with NCWA. l Water Awareness Poster Calendar, an annual calendar featuring the artwork of the previous year’s 4* grade poster contest winners. l Our Changing Water Needs, a traveling display depicting the history of water in San Diego County. Water Awareness Event Each May, NCWA holds a Water Awareness Celebration at a local shopping mall. This event combines educational skits and children’s shows with hands-on demonstrations and literature to teach customers of all ages about wise water use. This event has been held annually since 1991, and has hosted over 1,000 area customers each year. Legislative/Liaison and Media Activities In addition to the program components listed above, CMWD is able to benefit from the legislative and media activities implemented by Metropolitan and the County Water Authority. These agencies serve as our representatives regarding the review and support of legislation, and act as liaisons between state water agencies. In addition, the mass media campaigns coordinated by Metropolitan and the County Water Authority directly benefit CMWD by increasing customer awareness about the need to conserve and the importance of infrastructure improvements. These are campaigns that may be cost- prohibitive for CMWD and other smaller water agencies to implement on their own. . ten Existing Water Supply And Management Carlsbad is located in a semi-arid coastal desert environment averaging 9.3 inches of rain annually. Prolonged rain storms are rare. The city is 100 percent reliant on imported water from the San Diego County Water Authority and the Metropolitan Water District of Southern California. Until 1960, CMWD’s historical water supply included groundwater, surface water, and imported water. Groundwater was obtained from wells in the San Luis Rey River Basin, located in the City of Oceanside, and wells located along Agua Hedionda Creek in Carlsbad. Surface water was obtained from Calavera Lake, an earthen dam reservoir designed to capture and treat surface runoff flowing into Calavera Creek. Calavera Lake included a water treatment plant and stored groundwater pumped from wells in the San Luis Rey River basin during the winter months. This groundwater was used later during peak water demand periods. Imported water was conveyed through aqueducts from the Colorado River by the Metropolitan Water District. At that time, imported water was not processed through a water treatment plant, but rather screened and chlorinated prior to use. Local groundwater and surface water supplies were abandoned in the 1960s due to poor water quality and the ability to directly supply lower-cost imported water to customers. Overall, groundwater quality degraded to the point where the levels of total dissolved solids (TDS) in the wells exceeded 1500 mg/L. The water treatment plant that existed at Calavera Lake was subsequently abandoned and dismantled. CMWD began receiving imported water deliveries in 19.55 through existing aqueduct connections located in the City of Oceanside. A pipeline was constructed in 1956 by CMWD to convey imported water directly to Carlsbad and unincorporated areas. From 1962 to 1992, CMWD’s water demand was met exclusively by imported water sources. In 1991, CMWD began delivering reclaimed water to supplement its imported water supply. Through agreements with two other agencies, CMWD obtained 2.0 mgd of reclaimed water from the Meadowlark Water Reclamation Facility, and 0.75 mgd from the Gafner Water Reclamation Plant. These plants are owned and operated by the Vallecitos Water District and the Leucadia County Water District, respectively. Since 1992, reclaimed water demand has increased due to new land development projects. These projects connect into a reclaimed water system consisting of TABLE 4-1 . . . . . . . ~~~~~~ Domestic Agrjcu/tura/ @ ‘:“‘.‘%*<> ;:gs;?; Sales ““““d Sales .;,. :: 6,997.3 3,967.8 ., .,,, .-“ii : i:, .: 8,770.O 4,614,8 i,;ii;,:,‘j::,::;f I.,. .I’ 11,176.8 i;jg 2,5(yjo ~~~~~i-l 1 4,450-j *>;;$.. . ..’ &$: , 3,257mo 2,000.0 .~~~~Sil~ $&g ;zzt 1,435.5 ,i;:):):j / : ,: ,.,.,. 1 l Delivery of reclaimed water began in 1991 distribution pipelines, a 2 mgd pump station and two reservoirs with a combined storage capacity of 2.5 million gallons. The historical demand for water since 1975 compared to the sources of supply is shown in Table 4- 1. Peak water demand occurred in 1989 with a record amount of nearly 18,000 acre feet purchased. Since then, water conservation practices and higher water rates have resulted in a significant reduction in the demand for water. The necessity for reduced water consumption by CMWD customers was the result of a reduction in the available imported water supply from the 1986 to 1993 drought. Although water was not rationed, MWD placed financial penalties on its member agencies if they exceeded their water demand of FY 1988-89. MWD enacted this penalty to discourage any increases in the imported water demand. To avoid paying the financial penalty, CMWD adopted an increasing block rate structure to discourage high water use. In 1993, this structure was changed to a flat rate. In addition, water conservation programs were expanded to discourage the use of excessive amounts of water for irrigation purposes during the drought. While these conservation programs continue, CMWD no longer discourages the use of water for irrigation. The inclining block rate structure combined with water conservation programs resulted in a 3,200 acre feet or 17 percent reduction in the demand for water by FY 1994-95. It is not anticipated that demand will be reduced further by the existing customers. In 1995, CMWD purchased 14,708 acre feet of imported water to meet its potable water demand. The maximum day demand was approximately 22 mgd, occurring in August. That same year, CMWD purchased and sold I,04 1 acre feet of reclaimed water. The peak demand for reclaimed water was 194 acre feet (2 mgd) occurring in the month of August. The total combined maximum day demand for imported and reclaimed water was 24 mgd. The quality of imported water has been an issue for the San Diego region since the aqueduct connection to the Colorado River in 1947. Colorado River water has twice the salt content (TDS) of groundwater sources in MWD’s service area. The TDS level was reduced when water from the State Water Project was first introduced and blended with Colorado River water. However, this water supply has some unique quality problems with high levels of bromides and organic humic substances associated with salt water intrusion and agricultural tail water. These specific water quality problems post serious concerns when addressing future compliance with new and proposed regulations associated with the 1986 Safe Drinking Water Act. In spite of this, CWA’s primary source of imported water remains the Colorado River. Imported water is treated by MWD at the Skinner Filtration Plant in western Riverside County prior to being delivered to CMWD . This treatment plant was constructed in the late 1970s and presently has a capacity of 600 mgd. The water is processed through several treatment systems, as follows: l The water is first stored at Lake Skinner, an open reservoir, and serves as a forebay for the filtration plant. To protect water quality from potential contamination, no body contact with the water is permitted at Lake Skinner. l The water is then coagulated and flocculated prior to being delivered to sedimentation tanks. Coagulants cause very fine particles suspended in the water to clump together into larger particles during the flocculation process. The sedimentation tanks remove suspended solids that are heavier than . water and this process reduces the loading to the filters. Finally, the water is passed through filters to remove the remaining suspended particles and is disinfected using chloramines. Water treatment analyses continuously show that the water delivered to CMWD meets all state and federal water quality standards. CMWD’s 1995 Water Quality Report is included as Appendix C for reference. The primary source of the imported water is the Colorado River. However, State Project water is blended at MWD’s Lake Skinner Filtration Plant. The amount of State Project water blended with Colorado River water varies throughout the year and also varies year to year. Operational concerns by MWD and the availability of State Project water dictate the amount of blending that occurs. Under the current strategy, CMWD receives mainly Colorado River water containing TDS levels of 530 to 700 mg/L. In comparison, those agencies in MWD’s service area who receive only State Project water have TDS levels of 200 to 400 mg/L in their supply . The level of TDS is important because it impacts the cost of future reclamation programs. The higher TDS levels in the imported water, combined with an incremental increase of approximately 250 mg/L discharged into the sewer system, can require that desalination be implemented at wastewater treatment plants to maintain the levels below 1,000 mg/L. Surveys indicate that CMWD’s irrigation customers do not want to purchase reclaimed water having a level of TDS above 1000 mg/L. This level is also the maximum recommended in secondary drinking water standards. Reclaimed water is treated to meet State of California Title 22 requirements for non- restricted recreational impoundment. This regulation states that their are no limitations imposed on body-contact water sport activities and that this water is suitable for all uses except drinking. The processes to reclaim water include primary, secondary, and tertiary treatment of wastewater. Primary treatment includes grit removal screening. This process is followed by biological contactors which allow bacteria organisms to breakdown the sewage and turn it into a sludge that is then removed from the water in the secondary clarifiers. Following this process, the water is coagulated, flocculated, filtered and disinfected using chlorine prior to placement in the distribution pipelines. The final water quality achieved meets the State of California standards for unrestricted use of reclaimed water in irrigation applications. The latest water quality reports submitted to the Regional Water Quality Control Board, San Diego Region, are attached in Appendix D. In 1995, CMWD used reclaimed water to irrigate two golf courses and the landscaping in median parkways, school grounds, shopping centers, and a small area along the Interstate 5. As a result of the 1986 to 1993 drought, the reliability of the imported water supply was a major concern to CMWD. Even though the drought ended in the winter of 1993, MWD, CWA, and CMWD have taken a proactive approach to the reduced reliability of the imported water supply. MWD has developed an Integrated Resources Plan (IRP) which commits it to supply no less than 90 percent of the imported water demands in normal years, and no less than 80 percent of the imported water demands during drought conditions. However, these levels of supply are predicated on certain projects, policies, and agreements being secured by MWD. A major concern to CMWD was the fact that MWD could no longer guarantee 100 percent water reliability. For this reason, CMWD began developing a reclaimed water system based on a master plan adopted in 199 1. The initial system, referred to as Phase I, was implemented and can currently supply 2.75 mgd of tertiary treated reclaimed water. Although this does not drought-proof the CMWD service area, it does provide greater water reliability. CMWD is investigating other alternative water resources to supplement the imported water supply. These resources include sea water and brackish groundwater desalination, storm water recovery, aquifer storage and recovery, reclamation, and water transfers. The investigations on these programs will culminate in a feasibility report scheduled for completion in 1997. After these projects are rated as to their feasibility and ability to be implemented, a decision will be made on which projects to pursue. Implementation of any of these alternatives will occur over the next five years. As of 1996, CMWD’s available water supplies include imported water and reclaimed water as discussed previously. To protect water quality from potential installation of a floating polyethylene cover and asphalt liner. Improvements are also being made to the Phase I reclaimed water system with the construction of distribution pipelines within new land development projects. CalTrans is also constructing five miles of pipeline in the Interstate 5 freeway within the Carlsbad city limits to change its irrigation supply from potable to reclaimed water. The District’s potable water supply is exclusively imported water via aqueducts from MWD and CWA. Potable water demand in the CMWD service area has been projected to have a maximum day demand of 42.42 mgd occurring in the year of 20 15. An additional 20 mgd of potable water will be required if the reclaimed water supply is not constructed to meet irrigation demands. Total water demand in the CMWD service area, including potable and reclaimed water, is projected tdbe 62.42 mgd. to the imported wateraqueducts. These connections have the following rated capacity: There are four existing CMWD connections During emergencies, CMWD has access to Olivenhain Municipal Water District, the San Dieguito Water District, and the inter-ties with four neighboring water Vallecitos Water District. These interties are retailing agencies: the City of Oceanside, the CMWD No. 1 40 cfs* CMWD No. 2 10 cfs for transferring limited amounts of water between agencies during emergencies and short-term planned or unanticipated water system outages. CMWD No. 3 20 cfs CMWD No. 4 Total 20 cfs 90 cfs (58.17 mgd) CMWD does not have long-term agreements with adjacent agencies to supply water through interconnections. These agencies have insufficient local water supplies to satisfy more than a fraction of each agency’s current demands, much less provide a long- term additional supply to CMWD. However, CMWD is in preliminary discussions with the Vista Irrigation District to transfer water in from their local surface water supply. In addition, future exchanges could occur with the City of Oceanside to utilize water rights available to CMWD in the San Luis Rey River Basin. *cfs = cubic feet per second The imported water connections are sufficient to supply the ultimate maximum day demand of 42.42 mgd, assuming a 20 mgd reclaimed water system is developed. However, if the reclaimed water system is not expanded above the current Phase I system, or other alternative supplies are not developed, then a shortfall would occur in supplying the total maximum day demand of 62.42 mgd. The ultimate CMWD water delivery system will be capable of meeting the maximum day water demand with the construction of several planned improvements, including transmission mains and storage reservoirs. This system is considered reliable since ten days of emergency water supply will be available to CMWD because of its 200 million gallon Maerkle Reservoir. This emergency supply assumes that all reservoirs are full, which is not necessarily the case on a day-to-day basis. The water system is also considered reliable since it is gravity-flow, resulting from the imported water aqueducts having a higher hydraulic grade line elevation than the CMWD service area. This results in high water pressure being made available to CMWD. Therefore, the system is not dependent on pump stations, which are subject to power outages. It should also be noted that the elevation of the Skinner Filtration plant is high enough to result in a gravity-flow system in the imported water aqueducts. The weakest area in terms of reliability occurs in the imported water sources. Two issues are of particular concern. First, MWD’s imported water aqueducts cross several major earthquake fault lines. Consequently, these aqueducts could be severely damaged during a major earthquake. This situation also exists between the Skinner Filtration Plant and CMWD. Second, MWD’s allocation of State Project water has been reduced from 2.1 million acre feet to less that 700,000 acre feet per year. Environmental constraints can reduce this even further. Similarly, MWD is being required to reduce its demand on the Colorado River to its allocated limit. Even the Los Angeles Aqueduct’s allowable flows from the Owen’s Valley have been reduced. Consequently, the existing dependable supply of imported water to Southern California has been reduced from 4.2 MAF to 2.7 MAF since 1984. MWD, CWA and CMWD are undertaking studies and making preparations to develop projects to meet their service area needs for the next 20 years. These projects include the following: Emeraencv Water Storage Project (CWA) The Emergency Water Storage Project is designed to supply water over a &month period in the event of a rupture of the imported water aqueducts. CMWD could use water from the storage reservoir should an earthquake damage the aqueducts feeding treated water from the Skinner Filtration Plant. An environmental impact statement has been prepared for the 90,000 acre-foot storage reservoir project. Design of the reservoir is scheduled to begin in 1997. East Side Resewoir (MWD) The East Side Reservoir, now under construction, will be MWD’s largest reservoir with a capacity of 800,000 acre feet. This reservoir will be in service in the year 2000 and is located where it will be able to supply water to the entire MWD service area. It is also directly up stream of the Skinner Filtration Plant, which supplies treated water to CMWD. Imperial Irrigation DistridCWA Water Transfer Negotiations are under way by the County Water Authority to purchase excess water entitlement rights that the Imperial .* l ..*.il * l a.* l * I) It * * ‘..li.. ..L l ...* * * ilc * l .* *.*.*.. 24 Irrigation District (IID) may have available in the Colorado River. The entitlements may be up to 400,000 acre feet per year based on conservation practices implemented by IID. This agreement, combined with their other water supply sources, will assist in meeting the water supply needs of CWA . Reclaimed Water, Alternative Water Sources and Water Transfers (CMWD) CMWD is committed to further expansion of the existing reclaimed water system to support a maximum day demand of 20 mgd. In addition, planning is underway to develop alternative water supplies for an additional 3.2 mgd from several available local sources. These sources include sea water and brackish groundwater desalination and storm water recovery. Water transfers with adjacent agencies are also potential sources of water. This could include sharing in a water treatment plant proposed by Olivenhain Municipal Water District, to be located adjacent to the Emergency Storage Reservoir planned by CWA. The initial planning document for CMWD’s alternative water supplies is scheduled to be completed in 1997. Water Pricing and Rate Structures CMWD’s pricing structure is designed to achieve seven objectives: 1) 2) 3) 4) 5) 6) 7) Revenue sz&f?ciency. Water rates should be set at a level adequate to meet operating and capital costs, and to build and maintain reasonable reserves. Equitability. Rates should be set so that users pay in direct proportion to the costs of the services they receive. Encourage conservation. The rate structure should encourage conservation without penalizing normal usage. Growth pays fair share. New users should pay their fair share of costs so that existing users are not burdened with providing capacity for new users. Simplicity. Rates should be simple so that customers can understand them, and staff can implement, administer and bill efficiently. FZexibiZity. Rates should be flexible enough to accommodate changes in the regional water situation, such as fluctuations in supply and demand. Reclaimed water subsidy. Since the use of reclaimed water is beneficial to all water users, rates may be set so that potable users subsidize the reclaimed system. LeEal Basis CMWD was formed in 1952. The District’s financial structure is determined by state legislation which enables enterprise districts to provide services within a limited area and collect fees for these services. In 1990, CMWD became a subsidiary district of the City of Carlsbad, but maintained its ability to establish water rates and impose availability charges. Sources of Revenue The District’s primary source of revenue is derived from the sale of water. Currently, this source accounts for almost 78 percent of revenue generated. Other sources include delivery charges, connection fees, major facility charges and property taxes. As stated earlier, CMWD’s rate structure is designed to meet seven objectives: revenue sufficiency, equitability, conservation encouragement, growth’s payment of their fair share, simplicity, flexibility, and reclaimed water subsidization. The following section will describe the District’s current water rate structure. Water Rates CMWD currently charges $1.70 per unit ( 100 cubic feet) of potable water for all FIGURE 5-l $2.00 $1.50 $1.00 $0.50 1958 1977 1980 1683 ii91 1992 1993 1997 customer classifications. A conservation rate of $1.52 is available to all customers based on their water usage relative to their meter size (see page 28). Figure 5-l shows the historical trend of potable water rates in the CMWD service area. Through the Metropolitan Water District, CMWD adopted the Interim Agricultural Water Program. This program gives agricultural customers an opportunity to receive a water rate of $1.39 per unit. In exchange for the discount, these customers agree that during times of drought, their water deliveries will be reduced by 30 percent from their base year usage (1989-90) before mandatory restrictions are placed on other customers. If the drought is more severe, their deliveries may be cut by as much as 90 percent. In addition to potable water, CMWD currently serves reclaimed water to forty-two customers. The rate for reclaimed water is $1.62 per unit, which represents a 5 percent discount from the potable rate. Other Water Sewice Charges A monthly delivery charge is assessed to cover the costs of having water available and ready for use. These charges vary by meter size, and range in price from $9.25 for a 5/8- inch meter to $404.50 for an 8-inch meter. A one-time connection fee is also based on meter size and ranges from $2,400 for a 5/8- inch meter to $115,200 for an 8-inch meter. Impact of Rate Structure on Water Use MWD has undertaken a major research effort to determine the impact of retail prices on water conservation. Preliminary results indicate that from 1980 to 1992, single- family residential customers in Southern California decreased their water use, on average, by 0.185 percent for each 1 .O percent increase in the marginal price of water (taking into account inflation). An average reduction of 0.15 7 percent per 1 .O percent increase in price was found in all other types of residential housing. Businesses showed the lowest response of 0.106 percent reduction for 1.0 percent increase in price. Current Price and Rate Structure CMWD conducted a rate study in 1995 to incorporate the objectives discussed at the beginning of this chapter. The following issues represent changes from the previous rate structure: The previous rate structure applied the conservation rate to single-family customers only. Connection Fees: Connections fees are now based on meter size rather than “equivalent dwelling unit”. A new connection fee was also established for reclaimed water users. Delivey Charges: Delivery charges were revised to more accurately reflect the impact on the system as meter size increases. In addition, the “per dwelling unit” charge for multi-family customers was eliminated. Commodity Rates: The potable commodity rate remained constant at $1.70 per unit, while reclaimed water was discounted 5 percent over potable rates to $1.62 per unit. Conservation Rate: The conservation rate of $1.52 now applies to all customer classifications based on water usage relative to meter size, as follows: Maximum Meter Size Mon thlv Usace 5/8” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 units 3/4” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 units 1 1, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 units l-1/2” . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 units 2” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 units 3” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 units 4” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 units 6” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 units 8” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336 units Drought And Emevgen y Management The effective management of water supply shortages is an important responsibility of water agencies in Southern California. Shortages may be caused by droughts, failures of major water transmission facilities during earthquakes, an acute contamination of supplies due to chemical spills, or other adverse conditions. The need for an effective management program to mitigate water supply shortages arises from CMWD’s experiences during the recent drought. The current approach to managing water shortages has evolved from these drought experiences. The following section describes CMWD’s drought response measures during the shortage. In response to the severity of the drought, MWD adopted the Incremental Interruption and Conservation Plan (IICP) in 1990 and assigned each public water agency monthly conservation targets. These targets ranged from voluntary reductions in Stage I of the IICP to a mandatory 60 percent reduction in Stage VI. The District realized that an aggressive, action-oriented strategy was needed to meet Metropolitan’s reduction targets and to assure positive response and cooperation from District customers. In order to assist customers in their efforts to reduce water usage, CMWD adopted a Drought Response Plan (DRP) in 1991. This comprehensive DIU? included a variety of water-saving programs and emphasized a widespread public information and education campaign. These programs were targeted to every sector in the District’s customer base. The DRP contained four primary elements: 1) public information; 2) development of a “water ethic”; 3) implementation of conservation programs; and 4) development of a rate structure designed to encourage conservation. Public Information and Education Programs Coordination with neighboring water agencies. The City of Carlsbad is served by three separate water agencies: CMWD, the Olivenhain Municipal Water District and the Vallecitos Water District. An objective of the DRP was to create a program that avoided possible confusion from the public’s perspective. Therefore, a concerted effort was made to unify programs of the three agencies whenever possible. . Monthly conservation reports. In order to inform District customers on the progress of ..*.***..~..**.~.Z~.***~..~.~~.~***.****.**.”.*,. 29 their conservation efforts, monthly consumption reports were developed and published in local newspapers and on water bills. Public service announcements. Local television, radio and newspapers were used for disseminating up-to-date water information. Billingformat. The water bill format was redesigned to include information on the customer’s previous year’s water usage during the same billing period, an itemization of charges, and an enlarged message area. Mass mailing. A newsletter was developed and distributed to all customers to inform them of a wide variety of District conservation programs, as well as detailed information on new rates structures. Special mailings were sent to specific groups informing them of unique programs to assist with their conservation efforts. Community relations programs. A speakers bureau was established to address community groups such as homeowners associations, garden clubs, schools and scout groups. Carlsbad Water Ethic In 199 1, the CMWD Board of Directors adopted the Carlsbad Water Ethic. This Ethic specifies responsible water use and is designed to promote the most reasonable, wise and efficient use of water. It is intended that these practices are followed at all times, and adopted as a way of life. The Water Ethic is discussed further in Chapter 3. Consewation Programs Water audits. In addition to the traditional residential water audit, District staff was available to assist all users in the development of water-saving procedures. This included commercial, institutional, industrial and governmental customers. Showerhead retro$t. The District’s low-flow showerhead retrofit program was expanded to hotels, motels and other commercial users so that greater water savings could be achieved. Large tqf irrigation audits. Water management audits were expanded to include homeowners associations, schools, and landscape management companies. Toilet rebate program. In 1990, CMWD established an independent toilet rebate program in which customers received $100 rebates for replacing their old plumbing fixtures with ULFTs. This program ran until CMWD joined with the County Water Authority’s ULFT program in 199 1. Xeriscape promotion. The City’s Parks and Recreation Department, with assistance from CMWD, completed a landscape manual in which xeriscape principles were mandated for all new development. Rate Structure The goal of the rate structure developed to meet IICP conservation goals was three-fold: achieve water conservation through pricing; establish equitable water rates; and generate sufficient revenue to fund any penalties assessed from the IICP by Metropolitan. In order to encourage water conservation during the drought, an inclining block rate was established in 199 1, as follows: l-7 units (single-family only) . . . . $0.90/unit Up to allocation* . . . . . . . . . . . . . . . . . . $1.1 S/unit l-20% over allocation* . . . . . . . . . $1.43/unit >20% over allocation* . . . . . . . . . $1.73/unit *Allocation was based on a percentage of conservation required from the base year usage. This inclining block rate was in effect until October, 1992. Each year, MWD performs maintenance on its water delivery system and shuts down the corresponding aqueduct servicing several of its member agencies. Typically, the County Water Authority also uses this time to perform routine maintenance. In 1995, this shutdown was scheduled to occur from January 30 through February 8. CMWD receives 100 percent of its water via the treated water aqueducts that were to be shutdown. As a result, the District’s Board of Directors declared a Temporary Water Shortage effective two days prior to the actual shutdown, lasting until the re- establishment of water service through the aqueduct. In the past, CMWD customers were not affected by aqueduct shutdowns because of the District’s ability to use water stored in Maerkle Reservoir. However, this reservoir was scheduled for lining and covering as required by state and federal standards. Therefore, water in the reservoir was unavailable for use. Without the use of this reservoir, Carlsbad has a storage capacity of 45.5 million gallons. On an annual average, Carlsbad delivers 12.9 million gallons of water to its customers daily. During the winter months, water consumption decreases to about 11.5 million gallons per day, including both interior and exterior usage. The shutdown was scheduled for ten days and could have potentially been extended by the need for additional maintenance or weather delays. It was critical that a Temporary Water Supply Shortage be declared and customers asked to minimize indoor water use during this time. In preparation for the shutdown, all water storage facilities in Carlsbad were filled to capacity. Water availability from a neighboring water agency was also secured. However, the key to getting through the shutdown successfully was reducing water use for the lo-day period. Customer Restrictions In accordance with CMWD’s Water Conservation Ordinance adopted in 199 1, the following water use restrictions were in effect during the temporary shortage: No outdoor watering or vehicle washing. No refilling of pools, spas and fountains. Temporary discontinuance of all agricultural irrigation. Serving of water only on request at restaurants. Recommended limited indoor water usage. District staff patrolled the service area to monitor water usage and enforce the restrictions mentioned above. Customers not complying with the restrictions were subject to the following: 1) First violation: verbal notice. 2) Second violation: personal written notice. .c*.*+*~.c~.**...~*.**...~*.**.~.~~..***.***~***. 31 - 3) Third violation: installation of a flow restricting device for a period of at least 48 hours and imposition of any costs associated with installation of the device.. Customer Notification District staff notified customers of the temporary shortage using four means: Mass mailing, A postcard was mailed to all District customers one week prior to the shutdown, explaining why the shortage was occurring, the various water use restrictions, and who to call for further information. Contingency Plan in accordance with State law. CMWD refers to this plan as an operational guideline in the event of a severe water shortage. As a member agency, CMWD is included as part of the San Diego County Water Authority’s Urban Water Shortage Contingency Plan. The District is completely reliant upon CWA for its water, since we have no local sources. Therefore, CMWD is directly affected by CWA’s plan. For this reason, much of this Water Shortage Contingency Plan will reference the CWA plan, and its regional procedures and policies regarding supply and emergencies. In addition to postcards, special notices were mailed to all irrigation customers and the top water users in the service area, asking for their cooperation. Newspaper ads. A newspaper advertisement was placed in the local newspapers on three consecutive days prior to the shutdown, covering the same information as the postcard. Cable television announcement. A notice about the shutdown ran on the community access calendar on the local cable television station during the entire shutdown period. Water use in CMWD’s service area is related to a number of climatic, demographic and economic factors. Increases in population and regional economic growth, while slow in recent years, have influenced water use in the past and will continue to do so in the future. This subject is discussed in detail in Chapter 2. Press releases. Press releases were distributed As a member agency, CMWD is bound by to all local newspapers explaining the CWA’s worst case or “dry-year” supply conditions of the shutdown and the resulting scenario, as depicted in Table 6- 1. For water use restrictions. A press conference comparison purposes, Table 6-2 shows and facility tour were also held for members normal year demand and supplies. If a severe of the press. shortage were to occur, CMWD would receive direction from CWA as to its In February, 1992, the CMWD Board of Directors adopted the Water Shortage .**.~..I.*I.~*...**..*....*..*.~.**.*~~*.**.~.**. 32 - TABLE 6-1 The worst case scenario assumes a 3 1 percent reduction in imported water supplies from the Metropolitan Water District, a level of shortage that occurred in 1991-92. This scenario also assumes that a certain amount of carryover storage will be available from both CWA and MWD, and that water transfers would be available in amounts larger than previously used. Reclaimed supplies were reduced to account for lower wastewater flows during a water shortage. The resulting 2010 water shortage, or conservation requirement, is 12 percent. The CMWD Board of Directors adopted Ordinance No. 35 in March, 199 1 to address the drought situation that was then facing Southern California. This ordinance outlined six stages of water alerts that describe different required conservation savings. These conservation efforts ranged from voluntary compliance with reasonable conservation efforts in Stage 1 to a mandatory 40 percent reduction in Stage 6. The text of Ordinance No. 35 is included in Appendix B. Drought response stage actions become effective when CWA declares that it is unable to provide sufficient water supplies to meet the ordinary demands and requirements of its member agencies without depleting available water supplies, to the extent that insufficient water would be available for human consumption, sanitation and fire protection. When the Water Authority announces its stage declaration, TABLE 6-2 $g (2,,~()) t$j (37,000) (52,000) (70,000) 718,000 781,000 832,000 (60,000) (60,000) (60,000) (18,000) (36,000) (50,000) (5,000) (10,000) (15,000) ***..**~.**.**...CI.**.*..*.***~.*~.*.**.~*.~.**. 33 CMWD concurrently would declare its corresponding stage. Another situation that would trigger the response stages outlined in Ordinance No. 35 is a water shortage due to pipeline breaks or repairs. In addition to the conservation levels listed in Ordinance No. 35, the District developed and adopted the Carlsbad Water Ethic on March 5, 199 1. The Ethic is designed to promote responsible and efficient use of water. The practices specified in the Carlsbad Water Ethic are discussed in Chapter 6. During a water shortage, allocations for the District are established by the County Water Authority, based on the Incremental Interruption and Conservation Plan (IICP) established by MWD. The IICP includes several stages of delivery reductions CWA determined largely by the availability of imported supplies from the State Water Project and local supplies from MWD’s member agencies. The IICP featured financial penalties for agencies that failed to reduce deliveries to the appropriate level. Using the IICP allocations as a basis, CMWD requires all customer classifications to reduce their water consumption in accordance with the stages listed in Ordinance No. 35. The District is assessed a financial surcharge for exceeding the allocations set by the County Water Authority. Additionally, Ordinance No. 35 stipulates penalties assessed to customers who exceed the targets indicated in each stage. A flow restrictor may be placed on a customer’s service if the target is exceeded for three consecutive months. Prior to the implementation of the District’s new rate structure in July, 1996, CMWD derived 83 percent of its revenue from commodity charges. This heavy reliance on variable revenue left the District vulnerable to fluctuations in water sales. The new rate structure lessened our reliance on variable charges and shifted revenues to fixed sources such as the monthly delivery charge. In the event that revenues are less than required to meet the District’s financial obligations, a reserve fund has been established. Prudent fiscal management requires that reserve funds be established and maintained at adequate levels to provide short term capital in case of emergencies. The District’s operating reserves represent approximately 40 percent of annual operating expenses, This balance is necessary because of our dependence on CWA and MWD for our water supply. In the event of a water emergency, Ordinance No. 35 would be activated to respond to the level of shortage. At that time, drought response stage actions would go into effect and the District would be operating with reduced water sales. The amount of decreased revenue would depend upon the response stage under which the District would operate. .*~.Z*...,*.***..**.~*.~..*.**.*.*~..***..*.*.**. 34 - - . . . Ordinance No. 35 is currently in force to respond to the necessary level of shortage. As conditions change, the ordinance is designed to allow the District to declare different stages corresponding to the CWA’s declarations. Water use monitoring procedures are discussed in Section 6 of Ordinance No. 35, which requires the District to monitor the projected supply and demand for water on a daily basis. .Z~.***~.~*.*~.*.**..*.*.**.~*.~***.**.~..*.*.**. 35 - . CMWD’s primary source of water is imported water from MWD via CWA. The Environmental Impact. The project or current policies adopted by MWD and CWA conservation program should not have an state that they will supply 80 percent of impact that cannot be mitigated. imported water requirements in the worst case scenario. This position is based on the Water Rate Impact. The cost of the project assumption that MWD receives a specific or conservation program should be amount of water from the State Water acceptable within the rate payers’ ability to Project and the Colorado River. It also accept any change in the water rate. Most assumes that major reclamation and water projects have a financial impact that will be conservation goals are met within its service paid through the water rates unless grant funds are obtained from State and Federal area by its member agencies to make up any shortfall in the imported supplies. Sea water desalination is not included in their mix of water supply options at this time. agencies. Potential local resources for CMWD include sea water and groundwater desalination, water transfers, reclamation, and storm water recovery. The evaluation criteria to be used in determining which water supplies and conservation programs to pursue include the following four items: At the present time, a detailed cost breakdown of each alternative water source is unknown. In 1997, CMWD will complete a report that updates the water, sewer and reclaimed water master plans. This report will also include a preliminary analysis of alternative local water supplies that could produce 3.2 mgd. The following is a discussion of the alternatives being considered. Evaluation Of Alternatives Acceptance. The community must be willing to accept the project, the water supply, or conservation program for it to be successful. Ability to Implement. The project or policy must be able to be implemented within a reasonable amount of time, and be technologically feasible for CMWD. CMWD is directly adjacent to the Pacific Ocean, which makes’ it an ideal location for a desalination project. Two sites are potentially available for a sea water .**.*~**.**..*..*C”..*.~.*“..*....~.~.**.~*...~** 36 . desalination plant. The first is a 35-acre parcel south of the Encina Water Pollution Control Facility. The second site is the Encina Power Plant owned by San Diego Gas & Electric. Existing technology for desalination includes reverse osmosis, or a heat transfer process similar to multistage flash. At a production rate of 3.2 mgd, the brine produced could be discharged into the ocean outfall used by the Encina Water Pollution Control Facility. Technically, the project could be implemented within the next five years. The water produced would be acceptable for potable use in the water supply. Environmental impacts could be mitigated based on plants already approved in California, such Santa Barbara, Santa Catalina, Morro Bay and Cambria. Studies at other locations indicate the cost could be high compared to imported water. In comparison, it is estimated that it costs Santa Barbara $2,000 per acre foot to operate their reverse osmosis plant. This cost is compared to $450 per acre foot for CMWD to purchase imported water. CMWD and MWD are presently investigating newer technologies that may reduce this cost to $750 per acre foot. Results of these investigations are expected by 1999. Only one groundwater basin within the District has a TDS level below 1,000 mg/L. However, the safe yield in this basin is estimated to be less than 100 gpm. The next lowest water quality groundwater basin for TDS ranges from 1,500 to 2,000 mg/L. This is the San Luis Rey Basin located along the San Luis Rey River in the City of Oceanside, in which CMWD has entitlement to 500 acre feet per year. The City of Oceanside is presently operating a 5 mgd desalination plant in this basin. Their cost for this water with rebates from MWD is approximately $500 per acre foot, making this water supply very competitive with imported water. For CMWD, once the water is pumped and desalinated, it would still need to be conveyed over ten miles for direct use in the District’s service area. The cost of constructing the conveyance pipeline and pumps plus the O&M cost would need to be added to the cost of the treated water. The remaining basins within the District have a TDS level greater than 5,000 mg/L. Use of this water requires new wells pumping to a desalination plant. The brine produced could be discharged to an existing ocean outfall. The technology is readily available to desalinate brackish groundwater and deliver acceptable quality water to our customers. The project’s feasibility is evidenced by the reverse osmosis plant operated by the City of Oceanside. In addition, any environmental impacts could be mitigated. However, the cost for this water could be high. CMWD has the potential to receive local water supplies from two agencies: the City of Oceanside and the Vista Irrigation District (VID). Preliminary discussions have taken place with these agencies. A transfer could occur with the City of Oceanside by wheeling water from the San Luis Rey groundwater basin through Oceanside’s existing pipeline system to CMWD’s service area. This project is technically feasible assuming CMWD shares in the cost of expanding Oceanside’s desalination plant or in expanding their local water treatment plant. The environmental impacts should be minor considering the use of existing treatment facilities and pipelines. The cost for this water would need to be negotiated. VID has rights to surface water and groundwater at Lake Henshaw. They have the ability to convey this water through their water system to CMWD’s boundary. Therefore, VID is in need of a storage reservoir. One proposal states that in lieu of constructing a new reservoir, VID could share in the capacity of CMWD’s existing Santa Fe II reservoir in exchange for a portion of their local supply. Although the cost for this water would need to be negotiated and verified in terms of its reliability and quantity, the overall cost may be close to the imported water rate. CMWD has completed Phase I of a five- phase reclaimed water master plan which supplies 2.75 mgd. At build-out in the year 20 1.5, the irrigation demand for reclaimed water is estimated at 10 mgd average day flow and a maximum day demand of 20 mgd. The Phase II system is envisioned to supply an additional 5 mgd . Previous master plans indicated the Phase II project will cost $20 million to $30 million, depending on the treatment required, the location of the treatment plant, and the transmission main system selected. While the project is technologically feasible, an investigation is required to determine the resulting cost for reclaimed water customers. These investigations are to be completed in 1997. Phase II is expected to be implemented within the next five years Storm flows during the winter months occur at very high rates, often up to 15,000 cfs in some locations. Storm flows vary in water quality, depending on their location and whether its the first storm of the year or toward the end of the season. Water quality is also influenced by non-source point pollution. Stormwater flows can be captured and stored for later use in the reclamation system. These flows can also be placed in groundwater aquifers by injection wells and then extracted during peak water demand periods. Certain ground water basins could be improved through this injection process. This program has been successfully implemented in the State of Florida and is considered technically feasible. An analysis must be done on the ability to store water at Calavera Lake or through the construction of a new large scale reservoir on San Marcos Creek. Investigations are also needed on the groundwater basins to determine the amount of water that could be injected into the ground for storage. Preliminary information will be presented in a report scheduled for completion in 1997. As shown in Chapter 3, the District has taken an aggressive approach to promoting water conservation to provide permanent water savings without affecting lifestyles or the economy. In conjunction with CWA and MWD, the District will continue to implement water-efficient programs. ~.e..~.**.**.*.**.**...* 2% . - Conservation is viewed in a similar light as local water development because each unit of water conserved frees up a unit for other uses. Conservation has also proven to be very cost-effective and, like local water projects, reduces the costs of purchasing, transporting and storing imported water. One of the consequences of implementing new conservation programs is a concept known as demand hardening, which is the diminished ability or willingness of customers to reduce demand during a shortage. This occurs because every incremental addition to conservation causes total water use to approach a minimum limit, the point at which demand is truly essential and cannot be further reduced without causing health or economic harm. The significance of this is that during future water shortages, the room for conserving non-essential water supplies will be minimal. l . CALIFORNIA URBAN WATER MANAGEMENT PLANNING ACT CALIFORNLA WATER CODE DIVISION 6 PART 2.6 URBAN WATER MANAGEMENT PLANNING CHAPTER 1. GENERAL DECLARATION AND POLICY 10610. This part shall be know and may be cited as the “Urban Water Management Planning Act.” 106 10.2. The Legislature finds and declares as follows: (a) The waters of the state are a limited and renewable resource subject to ever increasing demands. (b) The conservation and efficient use of urban water supplies are of statewide concern; however, the planning for that use and the implementation of those plans can best be accomplished at the local level. (c) A long-term, reliable supply of water is essential to protect the productivity of California’s businesses and economic climate. (d) As part of its long-range planning activities, every urban water supplier should make every effort to ensure the appropriate level of reliability in its water service sufficient to meet the needs of its various categories of customers during normal, dry, and multiple dry water years. (e) This part is intended to provide assistance to water agencies in carrying out their long- term resource planning responsibilities to ensure adequate water supplies to meet the needs of both existing customers and future demands for water. 10610.4. The Legislature finds and declares that it is the policy of the state as follows: (a) The management of urban water demands and efficient use of water shall be actively pursued to protect both the people of the state and their water resources. (b) The management of urban water demands and efficient use of urban water supplies shall be a guiding criterion in public decisions. (c) Urban water suppliers shall be required to develop water management plans to actively pursue the efficient use of available supplies. CHAPTER 2. DEFINITIONS 106 11. Unless the context otherwise requires, the definitions of this chapter govern the construction of this part. 10611.5. “Demand management” means those water conservation measures, programs, and incentives that prevent the waste of water and promote the reasonable and efficient use and reuse of available supplies. 106 12. “Customer” means a purchaser of water from a water supplier who uses the water for municipal purposes, including residential, commercial, governmental and industrial uses. 106 13. “Efficient use” means those management measures that result in the most effective use of water so as to prevent its waste or unreasonable use or unreasonable method of use. 10614. “Person” means any individual, firm, association, organization, partnership, business, trust, corporation, company, public agency or any agency of such an entity. 106 15. “Plan” means an urban water management plan prepared pursuant to this part. A plan shall describe and evaluate sources of supply, reasonable and practical efficient uses, reclamation and demand management activities. The components of the plan may vary according to an individual community or area’ s characteristics and its capabilities to efficiently use and conserve water. The plan shall address measures for residential, commercial, governmental, and industrial water demand management as set forth in Article 2 (commencing with Section 10630) of Chapter 3. In addition, a strategy and time schedule for implementation shall be included in the plan. 106 16. “Public agency” means any board, commission, county, city and county, city, regional agency, district, or other public entity. 106 16.5, “Recycled water” means the reclamation and reuse of wastewater for beneficial use. 10617. “Urban water supplier” means a supplier, either publicly or privately owned, providing water for municipal purposes either directly or indirectly to more than 3,000 customers or supplying more than 3,000 acre-feet of water annually. An urban water supplier includes a supplier or contractor for water, regardless of the basis of right, which distributes or sells for ultimate resale to customers. This part applies only to water supplied from public water systems subject to Chapter 7 (commencing with Section 4010) of Part 1 of Division 5 of the Health and Safety Code. CHAPTER 3. URBAN WATER MANAGEMENT PLANS Article 1. General Provisions 10620. (a) Every urban water supplier shall prepare and adopt an urban water management plan in the manner set forth in Article 3 (commencing with Section 10640). (b) Every person that becomes an urban water supplier shall adopt an urban water management plan within one year after it has become an urban water supplier. (c) An urban water supplier indirectly providing water shall not include planning elements in its water management plan as provided in Article 2 (commencing with Section 10630) that would be applicable to urban water suppliers or public agencies directly providing water, or to their customers, without the consent of those suppliers or public agencies. (d) ( 1) An urban water supplier may satisfy the requirements of this part by participation in areawide, regional, watershed, or basinwide urban water management planning where those s.....e e *...~...s.....c a ,......e e..r)...e l . . . *..c A-2 plans will reduce preparation costs and contribute to the achievement of conservation and efficient water use. (2) Each urban water supplier shall coordinate the preparation of its plan with other appropriate agencies in the area , including other water suppliers that share a common source, water management agencies, and relevant public agencies, to the extent practicable. (e) The urban water supplier may prepare the plan with its own staff, by contract, or in cooperation with other governmental agencies. 1062 1. (a) Each urban water supplier shall update its plan at least once every five years on or before December 3 1, in years ending in five and zero. (b) The amendments to, or changes in, the plan shall be adopted and filed in the manner set forth in Article 3 (commencing with Section 10640). Article 2. Contents of Plans 10630. It is the intention of the Legislature, in enacting this part, to permit levels of water management planning commensurate with the numbers of customers served and the volume of water supplied. 1063 1. A plan shall be adopted in accordance with this chapter and shall do all of the following: (a) Describe the service area of the supplier, including current and projected population, climate, and other demographic factors affecting the supplier’s water management planning. The projected population estimates shall be based upon data from the state, regional, or local service agency population projections within the service area of the urban water supplier and shall be in five-year increments to 20 years or as far as data is available. (b) Identify and quantify, to the extent practicable, the existing and planned sources of water available to the supplier over the same five-year increments as described in subdivision (a). (c) Describe the reliability of the water supply and vulnerability to seasonal or climatic shortage, to the extent practicable, and provide data for each of the following: ( 1) An average water year. (2) A single dry water year. (3) Multiple dry water years. For any water source that may not be available at a consistent level of use, given specific legal, environmental, water quality, or climatic factors, describe plans to replace that source with alternative sources or water demand management measures, to the extent practicable. (d) Describe the opportunities for exchanges or transfers of water on a short-term or long- term basis. (e) ( 1) Quantify, to th e extent records are available, past and current water use, over the same five-year increments described in subdivision (a), and projected water use, identifying the uses among water use sectors including, but not necessarily limited to, all of the following uses: e e.s a...~ a.....* . . . . . ..a a..~..*.*.* *...a ..e . . ..a A-3 (A) Single-family residential. (B) Multifamily. (C) Commercial. (D) Industrial. (E) Institutional and governmental. (F) Landscape. (G) Sales to other agencies. (H) Saline water intrusion barriers, groundwater recharge, or conjunctive use, or any combination thereof. (I) Agricultural. (2) The water use projections shall be in the same five-year increments as described in subdivision (a). (f) Provide a description of the supplier’s water demand management measures. This description shall include all of the following: (1) A description of each water demand management measure that is currently being implemented, or scheduled for implementation, including the steps necessary to implement any proposed measures, including, but not limited to, all of the following: (A) Interior and exterior water audits and incentive programs for single-family residential, multifamily residential, governmental, and institutional customers. (B) Enforcement of plumbing fixture efficiency standards and programs to retrofit less efficient fixtures. (C) Distribution system water audits, leak detection, and repair. (D) Metering with commodity rates for all new connections and retrofit of existing connections. (E) Large landscape water audits and incentives. (F) Landscape water conservation requirements for new and existing commercial, industrial, institutional, governmental, and multifamily developments. (G) Public information. (H) School education. (I) Commercial and industrial water conservation. (J) New commercial and industrial water use review. (I<) Conservation pricing for water service and conservation pricing for sewer service, where the urban water supplier also provides sewer service. (L) Landscape water conservation for new and existing single-family homes. (M) Water waste prohibitions. (N) Water conservation coordinator. (0) Financial incentives to encourage water conservation. (P) Ultra-low-flush toilet replacement. (2) A schedule of implementation for all water demand management measures proposed or described in the plan. (3) A description of the methods, if any, that the supplier will use to evaluate the effectiveness of water demand management measures implemented or described under the plan. (4) An estimate, if available, of existing conservation savings on water use within the supplier’s service area, and the effect of such savings on the supplier’s ability to further reduce demand. (g) An evaluation of each water demand management measure listed in paragraph (1) of subdivision (f) that is not currently being implemented or scheduled for implementation. In the course of the evaluation, first consideration shall be given to water demand management measures, or combination of measures, which offer lower incremental costs than expanded or additional water supplies. This evaluation shall do all of the following: (1) Take into account economic and noneconomic factors, including environmental, social, health, customer impact, and technological factors. (2) Include a cost-benefit analysis, identifying total benefits and total costs. (3) Include a description of funding available to implement any planned water supply project that would provide water at a higher unit cost. (4) Include a description of the water supplier’s legal authority to implement the measure and efforts to work with other relevant agencies to ensure the implementation of the measure and to share the cost of implementation. (h) Urban water suppliers that are members of the California Urban Water Conservation Council and submit annual reports to that council in accordance with the “Memorandum of Understanding Regarding Urban Water Conservation in California,” dated September 199 1, may submit the annual reports identifying water demand management measures currently being implemented, or scheduled for implementation, to satisfy the requirements of subdivisions (f) and (9). 10632. The plan shall provide an urban water shortage contingency analysis which includes each of the following elements which are within the authority of the urban water supplier: (a) Stages of action to be undertaken by the urban water supplier in response to water supply shortages, including up to a 50 percent reduction in water supply, and an outline of specific water supply conditions which are applicable to each stage. (b) An estimate of the minimum water supply available during each of the next three water years based on the driest three-year historic sequence for the agency’s water supply. . ..c . ..e ,..s..., e *.s..c e e..s ..c a...~......* s.e.e A-5 (c) Actions to be undertaken by the urban water supplier to prepare for, and implement during, a catastrophic interruption of water supplies including, but not limited to, a regional power outage, an earthquake, or other disaster. (d) Additional, mandatory prohibitions against specific water use practices during water shortages, including, but not limited to, prohibiting the use of potable water for street cleaning. (e) Consumption reduction methods in the most restrictive stages. Each urban water supplier may use any type of consumption reduction methods in its water shortage contingency analysis that would reduce water use, are appropriate for its area, and have the ability to achieve a water use reduction consistent with up to a 50 percent reduction in water supply. (f) Penalties or charges for excessive use, where applicable. (g) An analysis of the impacts of each of the actions and conditions described in subdivisions (a) to (f), inclusive, on the revenues and expenditures of the urban water supplier, and proposed measures to overcome those impacts, such as the development of reserves and rate adjustments. (h) A draft water shortage contingency resolution or ordinance. (i) A mechanism for determining actual reductions in water use pursuant to the urban water shortage contingency analysis. 10633. The plan shall provide, to the extent available, information on recycled water and its potential for use as a water source in the service area of the urban water supplier. To the extent practicable, the preparation of the plan shall be coordinated with local water, wastewater, groundwater, and planning agencies and shall include all of the following: (a) A description of the wastewater collection and treatment systems in the supplier’s service area, including a quantification of the amount of wastewater collected and treated and the methods of wastewater disposal. (b) A description of the recycled water currently being used in the supplier’s service area, including, but not limited to, the type, place, and quantity of use. (c) A description and quantification of the potential uses of recycled water, including, but not limited to, agricultural irrigation, landscape irrigation, wildlife habitat enhancement, wetlands, industrial reuse, groundwater recharge, and other appropriate uses, and a determination with regard to the technical and economic feasibility of serving those uses. (d) The projected use of recycled water within the supplier’s service area at the end of 5, 10, 1.5, and 20 years. (e) A description of actions, including financial incentives, which may be taken to encourage the use of recycled water, and the projected results of these actions in terms of acre-feet of recycled water used per year. (f) A plan for optimizing the use of recycled water in the supplier’s service area, including actions to facilitate the installation of dual distribution systems and to promote recirculating uses. 10635. (a) Every urban water supplier shall include, as part of its urban water management plan, an assessment of the reliability of its water service to its customers during normal, dry, and multiple dry water years. This water supply and demand assessment shall compare the total water supply sources available to the water supplier with the total projected water use over the next 20 years, in five-year increments, for a normal water year, a single dry water year, and multiple dry water years. The water service reliability assessment shall be based upon the information compiled pursuant to Section 1063 1, including available data from the state, regional, or local agency population projections within the service area of the urban water supplier. (b) The urban water supplier shall provide that portion of its urban water management plan prepared pursuant to this article to any city or county within which it provides water supplies within 60 days of the submission of its urban water management plan. (c) Nothing in this article is intended to create a right or entitlement to water service or any specific level of water service. (d) Nothing in this article is intended to change existing law concerning an urban water supplier’s obligation to provide water service to its existing customers or to any future, potential customers. Article 3. Adoption and Implementation of Plans 10640. Every urban water supplier required to prepare a plan pursuant to this part shall prepare shall prepare its plan pursuant to Article 2 (commencing with Section 10630). 1064 1. An urban water supplier required to prepare a plan may consult with, and obtain comments from, any public agency or state agency or any person who has special expertise with respect to water demand management methods and techniques. 10642. Each urban water supplier shall encourage the active involvement of diverse social, cultural, and economic elements of the population within the service area prior to and during the preparation of the plan. Prior to adopting a plan, the urban water supplier shall make the plan available for public inspection and shall hold a public hearing thereon. Prior to the hearing, notice of the time and place of hearing shall be published within the jurisdiction of the publicly owned water supplier pursuant to Section 6066 of the Government Code. A privately owned water supplier shall provide an equivalent notice within its service area. After the hearing, the plan shall be adopted as prepared or as modified after the hearing. 10643. An urban water supplier shall implement its plan adopted pursuant to this chapter in accordance with the schedule set forth in its plan. 10644. (a) An urban water supplier shall file with the department a copy of its plan no later than 30 days after adoption. Copies of amendments or changes to the plans shall be filed with the department within 30 days after adoption. (b) The department shall prepare and submit to the Legislature, on or before December 3 1, in the years ending in six and one, a report summarizing the status of the plans adopted pursuant to this part. The report prepared by the department shall identify the outstanding . ..e t...s..s...e s..s.....+.c e . . . . ..*...a s..s...o A-7 elements of the individual plans. The department shall provide a copy of the report to each urban water supplier that has filed its plan with the department. The department shall also prepare reports and provide data for any legislative hearings designed to consider the effectiveness of plans submitted pursuant to this part. 10645. Not later than 30 days after filing a copy of its plan with the department, the urban water supplier and the department shall make the plan available for public review during normal business hours. CHAPTER 4. MISCELLANEOUS PROVISIONS 10650. Any actions or proceedings to attack, review, set aside, void, or annul the acts or decisions of an urban water supplier on the grounds of noncompliance with this part shall be commenced as follows: (a) An action or proceeding alleging failure to adopt a plan shall be commenced within 18 months after that adoption is required by this part. (b) Any action or proceeding alleging that a plan, or action taken pursuant to the plan, does not comply with this part shall be commenced within 90 days after filing of the plan or amendment thereto pursuant to Section 10644 or the taking of that action. 1065 1. In any action or proceeding to attack, review, set aside, void, or annul a plan, or an action taken pursuant to the plan by an urban water supplier on the grounds of noncompliance with this part, the inquiry shall extend only to whether there was a prejudicial abuse of discretion. Abuse of discretion is established if the supplier has not proceeded in a manner required by law or if the action by the water supplier is not supported by substantial evidence. 10652. The California Environmental Quality Act (Division 13 (commencing with Section 2 1000) of the Public Resources Code) does not apply to the preparation and adoption of plans pursuant to this part or to the implementation of actions taken pursuant to Section 10632. Nothing in this part shall be interpreted as exempting from the California Environmental Quality Act any project that would significantly affect water supplies for fish and wildlife, or any project for implementation of the plan, other than projects implementing Section 10632, or any project for expanded or additional water supplies. 10653. The adoption of a plan shall satisfy any requirements of state law, regulation, or order, including those of the State Water Resources Control Board and the Public Utilities Commission, for the preparation of water management plans or conservation plans; provided, that if the State Water Resources Control Board or the Public Utilities Commission requires additional information concerning water conservation to implement its existing authority, nothing in this part shall be deemed to limit the board or the commission in obtaining that information. The requirements of this part shall be satisfied by any urban water demand management plan prepared to meet federal laws or regulations after the effective date of this part, and which substantially meets the requirements of this part, or by any existing urban water management plan which includes the contents of a plan required under this part. 10654. An urban water supplier may recover in its rates the costs incurred in preparing its plan and implementing the reasonable water conservation measures included in the plan. Any best water management practice that is included in the plan that is identified in the “Memorandum of Understanding Regarding Urban Water Conservation in California” is deemed to be reasonable for the purposes of this section. 10655. If any provision of this part or the application thereof to any person or circumstances is held invalid, that invalidity shall not affect other provisions or applications of this part which can be given effect without the invalid provision or application thereof, and to this end the provisions of this part are severable. 10656. An urban water supplier that does not prepare, adopt, and submit its urban water management plan to the department in accordance with this part, is ineligible to receive drought assistance from the state until the urban water management plan is submitted pursuant to Article 3 (commencing with Section 10640) of Chapter 3. . ..c . ..a ,..c . . . . . ..c . . . e I.* e . . ..I..* e...a...a e.e A-9 . ORDINANCE NO. 35 AN ORDINANCE OF THE CARLSBAD MUNICIPAL WATER DISTRICT FINDING THE NECESSITY FOR AND ADOPTING A WATER CONSERVATION PROGRAM BE IT ORDAINED by the Board of Directors of the Carlsbad Municipal Water District as follows: Section 1. Declaration of Poliw. California Water Code Sections 375 et. seq. permit public entities which supply water at retail to adopt and enforce a water conservation program to reduce the quantity of water used by the people therein for the purpose of conserving the water supplies of such public entity. The Board hereby establishes a comprehensive water conservation program pursuant to California Water Code Sections 375 et seq., based upon the need to conserve water supplies and to avoid or minimize the effects of any future shortage. Section 2. Findings. The Board finds and determines that a water shortage could exist based upon the occurrence of one or more of the following conditions: (a) A general water supply shortage due to increased demand or limited supplies. (b) Distribution or storage facilities of the Metropolitan Water District of Southern California, the San Diego County Water Authority, the District, or other agencies become temporarily or permanently inadequate. The Board also finds and determines that the conditions prevailing in the San Diego County area require that the water sources available be put to maximum beneficial use to the extent to which they are capable, and that the waste or unreasonable use, or unreasonable method of use, of water be prevented and that the conservation of such water be encouraged with a view to the maximum reasonable and beneficial use thereof in the interest of the people of the District and for the public welfare. Section 3. Application. The provisions of this ordinance shall apply to all water served to persons, customers, and property by the District. Section 4. Authorization. The District General Manager, or a designated representative, is hereby authorized and directed to implement the provisions of this ordinance. Additionally, the General Manager, or designated representative is hereby authorized to make minor and limited exceptions to prevent undue hardship or unreasonable restrictions, provided that water shall not be wasted or used unreasonably and the purpose of this ordinance can be accomplished. . . . ..*.C~*..~*..**.**~*.**.*.**.**.*~*..*~..~.*.~~~ . Section 5. Water Conservation Stages. No person shall knowingly use water or permit the use of water supplied by the District for commercial, industrial, agricultural, governmental, or any other purpose in a manner contrary to any provision of this ordinance, in an amount in excess of the amounts authorized by this ordinance or during any period of time other than the periods of time specified in this ordinance. At no time shall water be wasted or used unreasonably. Unreasonable uses of water are those that violate the Carlsbad Water Ethic, a policy adopted by the Board to establish a list of prudent water uses to be followed regardless of the availability of local or imported water supplies. The following stages shall take effect upon declaration as herein provided: (a) Stage 1 - Voluntary Compliance - Water Watch. Stage 1 applies during normal periods to encourage conservation by the reasonable use of water in accordance with the Carlsbad Water Ethic. (b) Stage 2 - Enforcement Required - Water Alert. Stage 2 applies during periods that the District determines that water usage should be reduced approximately 10% in order to meet all of the water demands of its customers, either now or in the foreseeable future. Implementation of Stage 2 should result in an average of 10% reduction in water use from a base period to be determined at the time of declaration. Specific mandated restrictions in water use for Stage 2 are as follows: 1) Construction Usage - All construction water must be reclaimed water or nonpotable water, if available. 2) Development Con&nation - a) After declaration of Stage 2 and prior to issuance of any building permit, the developer will be required to certify that a 10% reduction of the projected average water usage for that development shall be achieved. b) In addition to the requirements in paragraph 2a), developer shall be requited to present a Plan to identify how 10% of the projected average water usage generated by the development will be offset by reduction in water use by existing customers. The Plan must be approved by the General Manager and its implementation guaranteed before a building permit will be issued. The Plan implementation may be guaranteed by installation or construction of the required improvements, or through payments of fees as determined by the General Manager. (c) Stage 3 - Enforcement Required - Water Warning. Stage 3 applies during periods when the District determines that water usage should be reduced approximately 15% in order to meet all of the water demands of its customers now or in the foreseeable future. Implementation of Stage 3 should result in a minimum of 15% reduction in water use from a base period to be determined at the time of declaration. Specific mandated restrictions in water use for Stage 3 are as follows: 1) Construction Usage - All construction water must be reclaimed water or nonpotable water, if available. 2) Development Construction - a) After declaration of Stage 3 and prior to issuance of any building permit, the developer will be required to certify that a 15% reduction of the projected average water usage for that development shall be achieved. b) In addition to the requirements in paragraph 2a), developer shall be required to present a Plan to identify how 15% of the projected average water usage generated by the development will be offset by reductions in water use by existing customers. The Plan must be approved by the General Manager and its implementation guaranteed before a building permit will be issued. The Plan implementation may be guaranteed by installation or construction of the required improvements, or through payments of fees as determined by the General Manager. (d) Stage 4 - Enforcement Required - Water Warning. Stage 4 applies during periods when the District determines that water usage should be reduced approximately 20% in order to meet all of the water demands of its customers now or in the foreseeable future. Implementation of Stage 4 should result in a minimum of 20% reduction in water use from a base period to be determined at the time of declaration. Specific mandated restrictions in water use for Stage 4 are as follows: 1) Construction Usage - All construction water must be reclaimed water or nonpotable water, if available. 2) Development Construction - a) After declaration of Stage 4 and prior to issuance of any building permit, the developer will be required to certify that a 20% reduction of the projected average water usage for that development shall be achieved. b) In addition to the requirements in paragraph 2a), developer shall be required to present a Plan to identify how 20% of the projected average water usage generated by the development will be offset by reductions in water use by existing customers. The Plan must be approved by the General Manager and its implementation guaranteed before a building permit will be issued. The Plan implementation may be guaranteed by installation or construction of the required improvements, or through payments of fees as determined by the General Manager. (e) Stage 5 - Enforcement Required - Water Warning. Stage 5 applies during periods when the District determines that water usage should be reduced approximately 30% in order to meet all of the water demands of its customers now . ..* c * * * l l .* L * *.* * * *..* *.*.e c ..*.*.*.*..* a..* * *. H-3 or in the foreseeable future. Implementation of Stage 5 should result in a minimum of 30% reduction in water use from a base period to be determined at the time of declaration. Specific restrictions in water use for Stage 5 are as follows: 1) 2) 3) 4) Landscape (except residential) - Eliminate watering of ornamental turf areas. Water only actively used turf areas no more than twice per week. Trees and shrubs may be watered only twice per week using a hand held hose with a positive shutoff nozzle or drip irrigation. Use of reclaimed water, however, is exempt. Household and Household Members (Residential landscapes) - Water no more than twice per week using only hand held hose with positive shutoff nozzle or drip irrigation systems. Eliminate sprinkler use. Construction Usage - All construction water must be reclaimed or nonpotable. Issuance of construction meters will be only for testing and disinfection of potable waterlines. Development Construction - a) After declaration of Stage 5 and prior to the issuance of any building permit, the developer will be required to certify that a 30% reduction of the projected average water usage for that development shall be achieved. b) In addition to the requirements in paragraph 4a), developer shall be required to present a Plan to identify how 30% of the projected average water usage generated by the development will be offset by reductions in water use by existing customers. The Plan must be approved by the General Manager and its implementation guaranteed before a building permit will be issued. The Plan implementation may be guaranteed by installation or construction of the required improvements, or through payments of fees as determined by the General Manager. cf) Stage 6 - Enforcement Required - Water Warning. Stage 6 applies during periods when the District determines that water usage should be reduced approximately 40% in order to meet all of the water demands of its customers now or in the foreseeable future. Implementation of Stage 6 should result in a minimum of 40% reduction in water use from a base period to be determined at the time of declaration. Specific mandated restrictions in water use for Stage 6 are as follows: 1) Landscape (except residential) - Same requirements as Stage 5 plus irrigate playing fields only. 2) Household and Household Members (Residential landscapes) - Same as Stage 5 and no outside irrigation except with water reclaimed from indoor use with hand held bucket to effect a 40% cutback. 3) Construction Usage - Same as Stage 5. e.... e l **t.* c * *.* s..,. * * * % * * * I.., *.* + ..C . ..* c *.. B-4 4) Development Construction - a) After declaration of Stage 5 and prior to issuance of any building permit, the developer will be required to certify that a 40% reduction of the projected average water usage for that development shall be achieved. b) In addition to the requirements in paragraph 4a), developer shall be required to present a Plan to identify how 40% of the projected average water usage generated by the development will be offset by reductions in water use by existing customers. The Plan must be approved by the General Manager and its implementation guaranteed before a building permit will be issued. The Plan implementation may be guaranteed by installation or construction of the required improvements, or through payments of fees as determined by the General Manager. Section 6. Implementation of Conservation Stages. The District shall monitor the projected supply and demand for water by its customers on a daily basis. The Manager shall determine the extent of the conservation required through the implementation and/or termination of particular conservation stages in order for the District to prudently plan for and supply water to its customers. Thereafter the Manager may order that the appropriate stage of water conservation be implemented or terminated in accordance with the applicable provision of this Ordinance. The declaration of any stage beyond Stage 1 shall be made by a mass mailing and public announcement and notice shall be published a minimum of three (3) consecutive times in a newspaper of general circulation. The stage designated shall become effective immediately upon announcement. The declaration of any stage beyond Stage 1 shall be reported to the Board at its next meeting. The Board shall thereupon ratify the declaration, rescind the declaration,’ or direct the declaration of a different stage. Section 7. Penalty. (a) Penalties. It shall be unlawful for any customer of the District to fail to comply with any of the provisions of this ordinance and of the Carlsbad Water Ethic. Failure to comply with any of the provisions of this Ordinance and of The Carlsbad Water Ethic shall be as follows: 1) For the first violation by any customer of any of the provisions of this Ordinance or the Carlsbad Water Ethic, the District shall verbally notice the fact of such violation to the customer. 2) For a second violation by any customer of any of the provisions of this Ordinance or the Carlsbad Water Ethic, the District shall issue a personal notice of the fact of such violation to the customer. 3) For a third violation by a customer of any provision of this ordinance or the Carlsbad Water Ethic, the District may install a flow restricting device of one gallon per minute (1 GPM) capacity for services of up to one and one-half inch size and comparatively sized restrictors for larger services upon a prior determination that the customer has repeatedly violated the provisions of this Ordinance or the Carlsbad Water Ethic regarding the conservation of water and that such action is reasonably .*.* * e.* ** * * * .a a f ** * * rl a.* * ****..e * *.*.*.* ct..* *.* g-5 necessary to assure compliance with this ordinance or the Carlsbad Water Ethic regarding the conservation of water. Such action shall be taken only after a hearing held by the District Manager or designee, where the customer has an opportunity to respond to the District’s information or evidence that the customer has repeatedly violated the provisions of this Ordinance or the Carlsbad water Ethic regarding the conservation of water and that such action is reasonably necessary to assure compliance with this ordinance and the Carlsbad Water Ethic regarding the conservation of water. As determined by the General Manager any such restricted service may be restored upon application of the customer made not less than forty-eight (48) hours after the implementation of the action restricting service and only upon a showing by the customer that the customer is ready, willing and able to comply with the provisions of this Ordinance or the Carlsbad Water Ethic regarding the conservation of water. Prior to any restoration of service, the customer shall pay all District charges for any restriction of service and its restoration as provided for in the District’s rules governing water service. Any willful tampering with or removal of any flow restriction device shall result in termination of service for a period to be determined by the General Manager. Notice. The District shall give notice of each violation to the customer committing such violation as follows: 1) For any violation of the provisions of this Ordinance or the Carlsbad Water Ethic, the District may give written notice of the fact of such violation to the customer personally or by U. S. mail, first class, registered postage paid. 2) If the penalty assessed is, or includes, the installation of a flow restrictor to the customer, notice of the violation shall be given in the following manner: a.By giving written notice thereof to the customer personally; or b. If the customer be absent from or unavailable at either his place of residence or his assumed place of business, by leaving a copy with some person of suitable age and discretion at either place, and sending a copy through the U. S. mail, first class, registered postage prepaid, addressed to the customer at his place of business, residence, or such other address provided by the customer for bills for water or electric service if such can be ascertained; or c. If such place or residence, business or other address cannot be ascertained, or a person of suitable age or discretion at any such place cannot be found, then by affixing a copy in a conspicuous place on the property where the failure to comply is occurring and also be delivering a copy to a person of suitable age and discretion there residing, or employed, if such person can be found, and also sending a copy through the U. S. mail, first class, registered postage prepaid, addressed to the customer at the place where the property is situated as well as such other address provided by the customer for bills for water or electric service if such can be ascertained. - . Said notice shall contain, in addition to the facts of the violation, a statement of the possible penalties for each violation and statement informing the customer of his right to a hearing on the violation. (c) Appeals. Any customer against whom a penalty is levied pursuant to this section shall have a right to an appeal, in the first instance to the District General Manager or designee with the right of appeal to the District’s Water Commissioners, on the merits of the alleged violation, upon written request of that customer to the District within fifteen days of the date of notification of the violation. Section 8. CEQA Exemption. The Carlsbad Municipal Water District finds that this Ordinance and actions taken hereafter pursuant to this Ordinance are exempt from the California Environmental Quality Act as specific actions necessary to prevent or mitigate an emergency pursuant to Public Resources Code Section 2 1080(b)(4) and the California Environmental Quality Act Guidelines Section 15269(c). The Manager of the District is hereby authorized and directed to file a Notice of Exemption as soon as possible following adoption of this ordinance. Section 9. Repeal of Ordinance No. 30. An Ordinance of the Carlsbad Municipal Water District Finding the Necessity for and Adopting an Emergency Water Management Program to Replace Ordinance No. 28 (Ordinance No. 30) is hereby repealed in its entirety. Section 10. Effective Date and Publication. This Ordinance shall become effective as of the date of adoption and shall be published within ten days of adoption, pursuant to the California Water Code Section 376. PASSED, APPROVED AND ADOPTED by the Board of Directors of the Carlsbad Municipal Water District at a meeting held on March 5, 199 1. 1995 WATER QUALITY REPORT CARLSBAD MUNICIPAL WATER DISTRICT *.*****.C****~..*~.***..**.****..~.*.**..~..~~.. C-l : -‘- L The WateiWne CMWD Passes All Water Quality Tests Carlsbad’s Water Exceeds Safe Drinking Water Standards, According to 1995 Water Quality Report vv ant to find out what’s really in a glass of Carlsbad water? Just looking at it won’t give you many clues. But the 1995 Water Quality Report will. Increasing concerns about the environment have extended to questions about the safety of the water we drink. This report provides information on the constituents present in our water in comparison to strict state and federal standards. As you go through the constituents listed, you’ll see that the water provided by CMWD is of a higher quality than required by state and federal standards. Now more than ever, the Carlsbad Municipal Water District is committed to providing you with the highest quality water available. Who Tests the Water? The annual Water Quality Report is the culmination of continuous monitoring and daily sampling collected from the point of treatment by the Metropolitan Water District at the Lake Skinner Filtration Plants, which are located in Southern Riverside County. For even greater quality control, numerous sampling points are located throughout Carlsbad. CMWD took over 1,700 bacteriological samples alone during 1995 from 33 sampling stations located in various Carlsbad neighbor- hoods. There were more than 10,000 miscellaneous tests run routinely throughout the year to monitor conditions within the District’s distribu- tion system, a system that produced over five billion gallons of water during 1995 to satisfy Carlsbad’s demands. What Are The Standards? Drinking water standards have been established by the State of California Department of Health Services and the U.S. Environmental Protection Agency (EPA). CMWD’s compliance with these standards assures our customers of high quality safe drinking water. Primary Standards protect the public health from substances in the water. They govern substances which may be harmful to humans or affect their health if consumed over a lifetime. Secondary Standards govern the aesthetic qualities of water, including taste, odor, clarity and mineral content. These standards specify limits for substances which affect whether or not consumers find the water acceptable. Exceeding these levels is not generally dangerous to health. CMWD’s Commitment Our proven track record of providing consistent, high-quality water best demonstrates our commit- ment to your health and safety. As a Carlsbad customer, you can rest assured that your water will always be of the highest quality and safe to drink. That is our pledge to you. If you have additional questions or concerns regarding the quality of your water, you can contact CMWD’s Operations Division at 438-2722. For more detailed information on testing procedures and results, contact the Metropolitan Water District of Southern California at (213) 217-6850 and ask for Mark Beuhler, Director of Water Quality. Or, you can write to him at MWD, P.O. Box 54153, Los Angeles, California, 90054-0153. . And Now, A Word About Water Quality Standards... Now that you know how we test our water, you may want to know what standards we use to measure its safety. Maximum contaminant levels (MCLs) have been established based on what can be consumed in a lifetime without adverse health effects - about half a gallon of water every day for 70 years. Most of the substances listed on page 3 occur naturally in our environment and in the foods we eat. Their standards have safety margins that take into act contaminant exposures fro other sources, such as food and air. For this reason, MCLs for water should not be regarded as fine lines minute particles can shield bacteria otherwise killed by disinfection. between safe and danger concentrations. MCLs are set for the following parameters: Organics - Natural organic compounds include fibers, animal fats and oils, vegetable oils, starch and sugars. Synthetic organic compounds come from chemical processes. These include pesticides, herbicides, lubricants, automotive fuel additives and detergents. Inorganics - Though naturally occurring, the effects of inorganics range from benefi- cial to dangerously effects include . nitrates and lead. Microbiological Clarity - Cloudiness or turbidity in water is caused bytinyparticlessuchascl silt or other suspended matter. Clarity is regulated because quality. Detection of coliform may indicate the presence of disease causing bacteria. Other microorgan- isms, such as algae, can produce undesirable tastes and odors. Radioactivity - Radioactivity in water originates from natural sources and human activities. The potential exposure to radiation in water is a fraction of the exposure from all other natural sources. Hardness - Water’s hardness, sometimes expressed as grams per gallon, refers to the amount of calcium and magnesium present. When levels are low, water is “soft”. Because hard water reacts with soap, many laundry detergents contain softening ingredients to improve their effectiveness. Total Dissolved Solids (TDS) - Water is a universal solvent, dissolving matter it comes into contact with. TDS is a measure- ment of the total mineral content of water. Minerals give water its taste. Blending water from various sonrces can affect TDS levels and taste. PARAMETER STATE MCL FED MCL Combined Filter Effluent Turbidity (NTU) 0.5 (b) 0.5 (b) ~B%sx?b&gid (42) Total Coliform 5.0% 5.0% Fetal Coliform /E. coli (cl w ckgarkic meas {q/L) Total Trihalomethanes (d) 0.10 0.10 Inorganic ichemic~f~) Aluminum l(KI.2) #(O.OS-0.2) Arsenic 0.05 0.05 Barium 1 2 Fluoride (g) 1.4-2.4 4.0(#2.0) Nickel 0.1 0.1 Nitrate (as N) 10 01) 10 Nitrate plus Nitrite (as N) 10 10 Selenium 0.05 0.05 I&wIi~ueEdes @C&j (analyzed every four years, for four consec Gross Alpha 15 15 Gross Beta 50 *50 Radium-226 (i) 5 5 (*20) Radon-222 NS *300 Strontium-90 8 8 Tritium 20,000 20,000 Uranium 20 *30 Chloride (m@) Color (units) Corrosivity Cklor Threshold (units) pH (units) Specific Conductance @mho/cm) Sulfate (mg/L) Total Dissolved Solids (mg/L) **250 250 15 15 non-corrosive non-corrosive 3 3 NS 6.5-8.5 **900 NS **250 250 (*500) *500 500 Alkalinity as CaCO, (mg/L) Calcium (mg/L) Hardness as CaCO, (mg/L) Heterotrophic Plate Count (CFU/mL) (1) Magnesium (mg/L) Potassium (mg/L) Sodium (mg/L) Total Organic Carbon (mg/L) NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3 3 3 i 1 I I i % f ! j i :$ti I I i / I I I ! j i I I I 3 3 I 1 33 SKINNER PLANTS Filtration Plant Effluents (a) Avg 0.07 Range 0.05-0.12 0.14% O-0.27% w 04 0.042 0.022-0.059 0.203 0.152-0.268 0.0022 0.0019-.0025 0.125 0.118-0.132 0.22 0.18-0.27 0.006 0.005-0.006 0.17 0.08-0.33 0.17 0.08-0.33 0.002 0.002 ve quarters) 4.9 ND-9.4 7.7 2.6-17.8 ND ND-l.2 ND ND-83 ND ND-2.3 ND ND-1762 3.4 ND-4.9 90 83-104 2 l-4 x (i) C&k) 8.07 7.89-8.20 978 891-1096 242 212-302 601 540-7 13 0.07 0.05-0.09 111 103-125 68 60-78 279 247-325 <l cl 26 24-32 4.5 4.0-5.0 93 82-110 2.62 2.34-2.92 Coliform Bacteria (presence/absence) ‘, REPORT TO WATER QUALITY CONTROL BOARD Meadowlark Reclamation Facility Effluent Compliance Report Report Generated by Vallecitos Water District . ..****.**..C*.~**+**~**~~~~*~..**~***..**.*~~.~ x3-x . - Vallecitom Water Dimt -,t Meadowlark Realmmation Fa,ility Monthly Effluent Compliance Report ordar NO. 93-23 Report For: December 1995 Report Due: January 1996 Iample Point: Chlorine Contact Tank Sunplem Collected Byt Dawn McDougle, Shawn Askine Samples Analyzed By: Dawn McDougle, Shawn Askine, RWA Laboratory Staff , L-- Parameter Discharge Requirements Monthly Daily Sample Analysis Results 246.4 346 0.023 0.027 0.697 c Date Sampled Sample Type CoInposite Compoeite Composite milli mhos/cz Composite lulf ate Iron Nanganese Hethylene Blue Active Substance 12/5/95 12/6/95 0.3 0.4 -I-- 0.05 0.06 Composite 12/5/95. 12/6/95 C-site 12/5/95 12/6/95 Composite 0.5 I 0.6 12/5/95* 12/6/95 Composite Potable Water Supply Parameter IQuartr - Yri Smmple Analysis Result Chloride I 3rd - 95 I 83.2 mg/L I I Rote: The discharge requirement for Chloride is not to exceed 200 rug/L over quarterly potable water supply. I Report Prepared By: Dawn R. Signed Under Penalty of Perjury: L . Vallecitos Water Distrrct Neadowlark Reclamation Facility Reservoir Compliance Report Monthly Rffluent and 0rd.r. No. 93-23 Report Por: December 1995 Repart Due: January 1996 Swle Point: Chlorine Contact Tank, Reservoir Shore Sample Type: Chlorine Contact Tank - Grab, Reservoir S8lnphm Collected By: Dawn HcDougle, Shawn Askine Samplam Analyzed By: Dawn McDougle, Shawn Askine Date SUllplOd ------I 12/l/95 :ss%: ::m 1216195 :mz 12/g/95 12/10/95 12/11/95 12/12/95 12/13/95 12/14/95 12/15/95 12/16/95 12/17/95 12/18/95 12/19/95 12/20/95 12/21/95 12/22/95 12/23/95 12/24/95 12/25/95 12/26/95 12/27/95 12/28/95 12/29/95 12/30/95 12/31/95 Nonthly Avotagm Plant Effluent Flow * Volume ** Do Chlorine Coliforms (=D) ------ 473098 474886 477050 476171 475985 1175989 1436163 1222389 949984 940280 1196587 1408460 1388080 1401625 1363964 1391828 1390118 1380842 1388100 1372876 1367684 1352571 1349278 1360105 1347108 1347763 1314374 1220919 1311070 1319157 1293878 o%f/L) PS ----- -0 2: 5.3 4.3 6.85 ::"9 6.87 4.0 3.0 6.78 2.7 33:: 6.89 ::i 6.90 4.7 2.5 6.82 ki 6.2 7.04 5.3 6.94 ::: 2.7 6.78 3.7 4.5 42:; 6.91 3.7 6.86 4.1 4.7 6.87 ::: mdu 0-I. 8.10 8.20 7.10 8.90 8.10 5.20 9.60 7.50 7.20 4.70 8.50 8.50 10.00 5.90 8.70 8.10 7.80 8.90 9.80 8.60 9.30 8.70 10.00 9.90 11.70 9.50 9.80 8.80 8.50 9.00 11.30 (MPM/100mL) (NTU) - * ----o---- ----II--- * ,““:zs, es Surface ** DO (mg/L) 2 3 4 <2 <2 <2 <2 2 <2 2 <2 <2 <2 <2 2 <2 <2 <2 <2 e2 <2 <2 8 <2 <2 2 <2 <2 <2 4 0.73 * 0.70 * 0.83 t 0.88 * 0.94 * 0.87 l 0.87 * 0.85 * 0.80 * 0.90 * 0.73 * 0.74 * 0.79 l 0.94 * 0.80 * 0.71 l 0.77 * 0.65 * 0.76 * 0.72 * 0.73 l 0.67 * 0.58 t 0.67 * 0.64 * 0.59 * 0.73 * 0.64 l 0.84 + 0.67 * 0.56 l 3.5 5.2 3:; 5:s 2.4 2: a:; 2; 8.5 9.4 7.9 5.7 7.5 9.5 9.9 6.1 6.6 5:: 2.2 ::: 5.4 Z 7.1 1173171 4.2 8.58 l *t 0.75 5.5 Line - Grab Turbidity l * An additional 23.4% of Meadowlark's treated flow was discharged to mtorage reservoir. ** Dissolved Gxygen *** Coliform monthly median for December is ~2 MPR/lOO II&. Report Prepared By: Dawn R. McDougle ~*~***..***“.*.“*~“*.*~.*“**~*.*.*.**~*~*.**..*~ D-3 _- 4. . Vallecitoo Water Dietrict Meadowlark Reclamation Facility Monthly Effluent Compliance Report Order No. 93-23 Report For: December 1995 Report Due: January 1996 Sample Point: Chlorine Contact Tank Sunple Type: Compolrite bamplee Collected By: Dawn McDougle, Shawn Askine Samples Analysed By: Dawn McDougle, Shawn Askine Composite Date From To m-o- -0 12/3/95 3%; 12/10/95 12/12/95 12/14/95 '12/17/95 12/18/95 12/21/95 12/25/96 12/26/95 12/28/95 - 12/4/95 - 12/6/95 - 12/8/95 - 12/11/95 - 12/13/95 - 12/15/95 - 12/18/95 - 12/19/95 - 12/22/95 - 12/26/95 - 12/27/95 - 12/29/95 Monthly Average Daily Limits m---------o- Biochemical Total Oxygen Suspended Demand Solids ------ o-o--- 3.9 ' rig/L 6.3 mg/L 6.1 mg/L 3.1 mg/L 5.1 mg/L 3.8 mg/L 3.3 mg/L 3.0 mg/L 3.1 mg/L 3.0 rag/L 4.5 mg/L 4.9 mg/L 4.2 mg/L 1.2 mg/L 1.2 mg/L 1.5 mg/L 1.1 mg/L 1.3 mg/L 1.6 mg/L 1.4 leg/L 1.5 mg/L 1.6 mg/L 1.0 mg/L 1.9 mg/L 1.8 mg/L 1.4 mg/L Volatile Suspended Solids o---o- 0.9 lng/L 1.0 mg/L 0.9 mg/L 0.8.mg/L 1.0 mg/L 1.1 mg/L 1.1 leg/L 1.1 mg/L 1.3 leg/L 1.0 lag/L 1.3 mg/L 1.2 mg/L 1.1 mg/L Total Dissolved Solids 0-o--- 1098 mg/L 1080 mg/L 1068 mg/L 1056 mg/L 1010 mg/L 1018 mg/L 1000 mg/L 1026 mg/L 1018 mg/L 1058 mg/L 1058 mg/L 1040 mg/L *lo44 mg/L Biochemical Oxygen Demand ................................ 45 Jng/L Total Suspended Solids ................................... 45 lug/L Total Dissolved Solids ................................... 1500 mg/L Monthly Limits (Monthly Average) -~--1---1---11---------I----- Biochemical Oxygen Demand . . . . . . . ..*...................... 30 mg/L Total Suspended Solids . . . . . . . . . . . . . . . ..*.................. 30 mg/L December Potable Total Dissolved Solids..................704 mg/L * Effluent Total Dissolved Solids are not to exceed 400 mg/L over Monthly Potable Total Dinsolved Solids. Report Prepared By: Dawn R. Signed Under Penalty of Perj .“*.~~*C”**.~**“~....~***.~.~****~..”.*”..*~.*”* D-4