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HomeMy WebLinkAbout; ; COSTA REAL MUNICIPAL WATER DISTRICT - MASTER PLAN FOR PUBLIC WATER SYSTEM; 1985-02-01• .. ---.. ----- -- ----.. -.. -.. ---.. -.. - -.. - COSTA REAL MUNICIPAL WATER DISTRICT MASTER PLAN FOR PUBLIC WATER SYSTEM FEBRUARY, 1985 WOOOSIOE/KUBOTA ANO ASSOCIATES, INC . CONSULTING ENGINEERS CARLSBAD, CALIFORNIA ----.. .. ---.. ------... --- ----... -.. • .. ---.. .. - COSTA REAL MUNICIPAL WATER DISTRICT BOARD OF DIRECTORS Margaret J. Bonas, President N.M. Alrnack, Vice-President Fred W. Maerkle, Secretary Susan Haasl, Treasurer Allan Kelly, Assistant Secretary/Assistant Treasurer GENERAL MANAGER William C. Meadows .. .. .. .. .. --.. .. .. .. .. ... .. .. --.. .. .. ... .. ... .. -.. -.. -.. .. - • - WOODSIDE/KUBOTA & ASSOCIATES, INC . ■NQIN■■NS 2565 Pio Pico Drive• P.O. Box 1095• Carlsbad, California 92008 • (619) 729-1194 Roard of Directors Costa Real Municipal Water District 5950 El Camino Real Carlsbad, CA 92008 Subject: Gentlemen: Master Plan of Public Water System Facilities Costa Real Municipal Water District May 29, 1985 We are pleased to transmit herewith 50 copies of the engineering report entitled "Master Plan of Public Water System Facilities -Costa Real Municipal Water District" dated February, 1985. This submission is made pursuant to authorizations of the District for the updating of all of the existing, adopted, local ''master plans" together with an integration of the Di~trict's master plans with the City of Carlsbad water service area . We invite your evaluation of this updated master plan report with emphasis upon its value to identify and formulate a long-range, District-wide plan for the orderly expansion and modernization of services and facilities in concert with the overall needs of the Carlsbad community as envisioned in the comprehensive general development plan of Carlsbad. There is presented as an attachment to this letter our summary and recommendations . The District is very fortunate to have in place the transmission mains and terminal- distribution storage reservoirs to provide water service for twice the current population -urban development level so that there is time to develop the long-range capital facilities expansion program. Implementing the "Public Facilities Management System," developed by the City of Carlsbad, will result in a fully integrated, cost-effective construction program in concert with all of the other important public facilities that must be constructed as the community continues to grow . We welcome the opportunity to respond to any comments or questions regarding this report and look forward to active participation with the Board of Directors, staff, and all interested parties to insure that this report can ultimately be adopted and be a part of an overall long-range action program for the District. Very truly yours, / I • , , .,. I I ~. ◄ /,{_, c.+----~ ,-1· I Jack Y. Kubota Attachment i In Orange County, Santa Ana --.. -------.. --------------- .. .. --- SUMMARY AND RECOMMENDATIONS From the inception of our Carlsbad community in the late 1800°s through our current planning period which identifies public facility requirements at the year 2000 and beyond, the basic element of the local community water supply has never changed in terms of priorities for the orderly growth and expansion of the entire community . The organization of the Water District in 1954, followed by establishment of the City of Carlsbad vJater Department in 1958, has resulted in the complete modernization of the p11blic water system in the City service area and the development of a vast t ransmi ssi on and arterial water system that serves the entire Di strict area of 20,000 acres. As urban development has taken place, the Water District and the City of Carlsbad have continuously monitored the growth trends, resulting in the preparation and adoption of specific "master plans" so that there would be a completely integrated water system that, on a progressive basis, would serve the entire neF?ds of the District. It is, therefore, appropriate at this juncture of time with the formal agreement of 1983 between the District and the City, that the District should sponsor this first master plan covering the entire Water District that is intencted to update all of the existing plans and to project the public water system to a time of "build-out." One has to contemf)late the total community water supply requirements for a population of 160,000 people that will be served principally by the Costa Real Municipal Water District and two neighboring water agencies, Olivenhain Municipal Water District and San Marcos County Water District. • Utilizing the important data from all of the previously-adopted master plans -and taking advantage of the most recent land-use planning information prepared .. -i i - by the City of Carlsbad, we have been able to carefully analyze in complete detail the ultimate total water supply requirements for all of the service area to the ''build-out" population and permanent urban development. To insure that common "design parameters" have been utilized for water consumption, we have made a detailed analysis of water sales information from data supplied from the City of Carlsbad and the Water Di strict to develop certain projections for actual water consumption for the various uses such as residential, commercial, industrial, recreational, landscaping, and agricultural. Utilizing special "com- puter programs" for hydraulic analysis of public water systems, there has been made a detailed evaluation of all of the existing facilities and the calculation of the required facilities to accommodate the "build-out" water supply requirements. There is displayed in detail in Exhibit "A" the public water system with the identification of the existing facilities as well as all of those future facilities. The specific identification of the major facilities that constitute the future construction program is based upon the parameters of major pipelines 20 inches in diameter or larger, all of the storage facilities, and all of the appurtenant facilities, including pumping and cogeneration systems. The report also identifies those areas of improvement for the operation of the water system as well as the development of local water resources to accommodate emergency situations or potential drought conditions that would have a drastic impact upon the area inasmuch as we are almost wholly dependent upon the imported water supply of the Colorado River and northern California for our ultimate "build-out" water requirements. i i i • • • • • • - • - • --- • -• -.. .. • -.. -----.. -.. -.. .. .. -.. -• .. ---.. ---.. -.. -.. .. -.. .. ------ --.. --.. -.. .. .. - - We have specifically enumerated the various construction projects prioritized in terms of time from the standpoint of our current level of projecting the growth requirements of the District. The City of Carlsbad has a recently-promulgated program of the "Public Facilities Management System" wherein all public facilities are evaluated for their level of service and where necessary, new facilities have to be planned and constructed to meet the various time schedules. There are two major mileposts that are worthy of comment at this point, namely: (1) The District's present pipeline capacity from the aqueduct system of the San Diego County Water Authority, amounting to 58 cubic feet per second (cfs), is roughly 60+ percent of total capacity requirements of 93 cfs, so based upon a "b1Jild-out" of 109,000 people in the District, the current level of pipeline capacity can accommodate almost twice the population that is now being served by the Costa Real Municipal Water District. (2) In the case of elevated ground storage, there is a projected total requirement of 63-mil lion ga 11 ons and as of now, we have 38-mil lion gallons. Here again, the total volume of elevated storage is 60 percent of the total requirement. One other important aspect of the future construction program involves the time at which the several large transmission facilities will need enlargement. We have projected the time frame in the order of when the existing facilities will have to be replaced. It would be most propitious to make the pipeline replacement at the same time the pipeline capacity needs to be increased so that there is a minimum duplication of pipeline facilities. Of course, in certain sectors, capacity i V requirements may exceed the existing supply capabilities even though the pipeline is not ready for replacement. In those instances, the District should make every effort to provide for augmentation of the water supply in given areas by way of complete looping and interties with neighboring water agencies to take care of short-term needs. We recommend that this master plan be carefully reviewed by the staff and the Board of Directors of the District, following which there should be a broad dissemination of the subject matter to the public for the time of a formal public hearing. Following the public hearing process and the determinations to make the appropriate modifications to this master plan, there should be a formal adoption. As mentioned earlier, the City of Carlsbad -Public Facilities Monitoring Program should be fully coordinated with the District's ongoing program for the continuous review of this master plan as adopted and we further recommend that there be complete, detailed reviews in 1990 and 1995 in order to assess carefully the need for adjustments in the schedule for the capital facilities construction program. There is presented herewith a final overall summary in a table format of all of the major facilities projects with their attendant time schedules for construction as well as estimated construction costs based upon 1985 dollars. The District will face the challenging future in the implementation of the several recommendations of this master plan report as well as the development of a long-range financing program that will provide for the necessary funds to implement this program and spread the financial burden on an equitable basis in the future. Based upon the accomplishments that have been made to date, the District is fully capable of promulgating a successful program. V .. • .. .. .. .. .. .. --.. -.. .. .. .. -.. -.. -------• - • - • -• • • -- .. .. .. ----------- .. • -.. -----.. - -.. -.. ---- SUMMARY OF MAJOR FACILITIES, ESTIMATED CONSTRUCTION COSTS, AND PHASING (TABLE IX OF THE REPORT) PHASING I I I MAJOR FACILITIES TOTAL COST (MILLION DOLLARS) I (1985-1990) I I (1990-2000) ( After 2000) (1) Seasonal Storage and Terminal -Regulating - Distribution Storage (2) Major Transmission Facilities (3) Water Treatment, Pumping/Cogeneration and Operations Fae i lit i es (4) Local Water Resources Development (5) Storage and Distribution System -Reconstruction, Relocation, Replacement, and Rehabilitation TOTALS 29.15 9.20 2.90 3.50 8.45 53.20 vi 20.05 4.50 4.60 1.092 8.108 0.95 1.45 0.50 2.50 1.00 1.35 6.60 0.50 22.35 16 .15 14. 70 - -,. .. -- - ----------- ----.. ------- .. - TABLE OF CONTENTS LETTER OF TRANSMITTAL SUMMARY AND RECOMMENDATIONS ENGINEERING REPORT: CHAPTER NO. I I I I I I IV V VI VII VIII TABLE NO. I I I I I I IV V DESCRIPTION Introduction Scope and Process of Study Service Area and Existing District-Wide Facilities Land Use and Population Forecasts for Entire District to "Build-Out" Community Water Resources Operations and Maintenance Design Parameters for Community Water System Long-Range Program for Total Water Resource Development and Management --Required New Facilities and Integration with Existing System Water Production -Sales Fire Flow Requirements Required Duration for Fire Flow Storage Requirements (in million gallons) Major Transmission Facilities -Replacement and Enlargement PAGE NO. i i i PAGE NO. 1 6 8 11 14 19 24 38 9 33 34 42 44 TABLE NO. V-A VI VII I IX PLATE NO. 1 APPENDIX TABLE OF CONTENTS (continued) Major Transmission Facilities -Replacement and Enlargement -Detailed Estimate -Quantities and Cost Water Treatment, Pumping/Cogeneration and Operations Facilities Local Water Resources Development Storage and Distribution System -Reconstruction, Relocation, Replacement and Rehabilitation Summary of Major Facilities, Estimated Construction Costs, and Phasing DES CR I PT! ON Residential Water Demand Based on Density of Dwellings Bibliography Exhibit "A" 4S 48 50 52 53 PAGE NO. 26 .. .. • .. - • • .. ---.. .. -.. ---.. .. • .. • .. .. .. • - • - • -- • .. --.. --.. --.. -- I. INTRODUCTION The rich history and the original naming of the Carlsbad community in the late 1800's was directly linked to a famous local "mineral well" that closely matched • the chemical composition of a famous mineral spa in Karlsbad, Czechoslovakia • .. -- Thus, from its very beginning, our "Carlsbad by the Sea" has grown and flourished, and at every milepost of its development, the public water supply for the community has been a prime factor in the expansion of the community to its current vast urban • form. It is evident that as we move into the 21st century, the availability of .. .. .. • --.. -.. .. -- -.. .. .. .. ... -.. --.. water and construction of the substantial infrastructure will be a key element for the orderly growth to its projected "build-out" level of 160,000 people. As a typical , small , coastal community in southern California, it was not until the tapping of the imported water supply from the Colorado River that the entire area moved in an entirely new direction of irrigated agricultural enterprises along the highly desirable coastal land areas followed by urban developments as the community public sewerage facilities would accommodate more substantial urban development . The Costa Real Municipal Water District was originally formed in 1954 (known then as the Carlsbad Municipal Water District) and joining the regional wholesaling agency -the San Di ego County Water Authority, and the Metropolitan Water Di strict of Southern California, Colorado River water became immediately available just in time to replace the local water supply, principally the well fields of the San Luis Rey River, which were deteriorating in quality as well as quantity. The original District boundaries included the Buena Vista Creek -City of Oceanside along the north, Vista, Buena and San Marcos to the east, 01 i venhai n and Leucadia to the -1- south -along the San Marcos Creek, and the Pacific Ocean. The total acreage in 1954 was some 22,000 acres; however, with several detachments, the current acreage of the District is 20,000 acres. Immediately after making the initial arrangements for water delivery, the Board of Directors, with the support and enthusiasm of the local property owners and voters, proceeded with a detailed engineering evaluation of the long-term water supply needs for the entire Water District territory, following which bond issues were put forward to finance the main transmission facilities, In 1957, the District commenced operation of their initial transmission and storage facilities to bring water to the entire District area, and particularly the village area of Carlsbad. Subsequently, 1959 and 1960 major bond issues were passed for local transmission and distribution facilities as well as storage facilities, so that public water service was made available to most of the District territory encompassing some 20,000 acres. Shortly thereafter, in 1963, the District completed its major local storage facilities, Squires Dam I, and the District Administration and Operations Center. At this point, total plant investment exceeded $3 million. During the course of time that the Water District was moving forward with its water supply program, the City of Carlsbad was promulgating its program for the acquisition of two private water companies so that in 1958, it commenced operations of a City Water Department serving some 7,000 acres of land within the Water District area. As both retail water service areas increased in size, the Water District continuously monitored service requirements to insure an ample water supply for the City service area as well as the rest of the District. -2- --------.. ---.. ---.. -----.. -------.. -.. -.. -.. - During the 1960's, the entire area became an active development area, primarily as a result of the availability of public sewer service from the newly constructed Encina Regional Facilities together with the complete facilities of the Leucadia County Water District, which would provide service to the Leucadia community and the newly i dent i fi ed community of La Costa. Both the City of Carlsbad Water Department, for its service area, and the District proceeded on a common course of long-range public water system planning so that there would ultimately be es tab 1 i shed master p 1 an programs that would guide the over a 11 development program for the City service area as wel 1 as the first urban area of La Costa. At this point, it should be borne in mind that there were some 13,000 acres of the District area where a considerable amount of irrigated agriculture was flourishing as a result of the opening of the new lands to truck crops and floral enterprises. The District continued its long-standing policy of encouraging long-range master planning as the various sections of the Water District started receiving attention for permanent urban development, so that commencing in 1969 and through the period to 1983, a total of six local master plans were sponsored and ultimately adopted . Correspondingly, the City of Carlsbad established master plans for its City service area with a 1965 report, an updating of the 1965 report in 1969, and a third report of 1979 encompassing a section of the City service area. As the District moved into the growth and development period commencing in 1980, it became apparent that it was timely to take a broad and comprehensive look at the entire District to bring up to date all of the adopted master plans as well as look at the entire City service area to put together in one comprehensive document all of the water service requirements for the entire Water District service area. The Board of Di rectors authorized the preparation of this overall master plan update -3- with the prime goa 1 of having a totally integrated engineering p 1 anni ng program together with a District-wide long-range construction program that would be in full compatibility with the newly emerging public policy of the City of Carlsbad for the "Public Facilities Management System" {P,F,M.S.). Briefly, the City of Carlsbad has developed a long-range growth management plan that requires a careful monitoring of all of the public facilities that would be required to provide for and promote the orderly growth of the entire Carlsbad community. Inasmuch as the entire Water District service area is included in the "sphere of influence" of the City of Carlsbad, it is imperative that the District and the City of Carlsbad work in complete coordination and cooperation in order to achieve the goals of sound urban planning and development. The City of Carlsbad and the Water District achieved a long-sought goal of the important "Water Service Agreement of May, 1983," which provided for the de 1 egat ion of specific responsibilities of the two agencies in providing overall public water service to the entire Water District area. Among the important responsi bil it ies assigned to the Water District was the task of proceeding with the "p 1 anni ng, financing and construction of all major capital facilities necessary to provide potable water service within the District," Needless to say, the fact that this major master plan updating would be a task under way at the time of the historic agreement is indicative of the insight of the policy makers in moving in the direction of community-wide long-range planning for public facilities. In summary, the District must have this master plan update utilizing the population and growth forecasts of the City of Carlsbad and the numerous engineering studies of the public water system facilities in order to proceed with its important -4- ---- • -- - ---.. ---.. -----.. -.. -.. -.. .. -.. - -- assignments. We acknowledge the generous assistance and cooperation of the following public agencies for the preparation of this report: City of Carlsbad --Department of Utilities, Engineering Department, Fire Department, Planning Department, and Research/Analysis Group City of Oceanside Olivenhain Municipal Water District San Diego County Water Authority San Dieguito Water District San Marcos County Water District Vista Irrigation District -5- II. SCOPE AND PROCESS OF STUDY The limits of the study are as shown on the Costa Real Municipal Water District Master Plan for Puhlic Water System -Exhibit "A" and attached to this report. This area consists of the entire Costa Real Municipal Water District and all of the District territory is within the "sphere of influence" of Carl shad. The fundamental task in long-range public utility planning is to collect and properly interpret the projected urban land-use form as promulgated by the public agencies having that governmental responsibility. For the Costa Real service area, the principal agency is the City of Carlsbad with portions of the unincorporated areas still under the control of the County of San Diego. Additionally, the "coastal area" of the District is controlled by the California Coastal Commission. The Di strict was fortunate to have the cooperation and assistance of the City of Carlsbad Research/Analysis Group which developed the "Land Use Information" for this master plan update. The newly developed information system had already been utilized by the City of Carlsbad for a community-wide "School Location Plan" so that it was very appropriate that the District utilize the available format and data. With the latest projection of land uses in hand, the study program then focused on the assessment of community water resources, the modern operation and maintenance of the public water system, and most importantly, the specific design parameters for the vast network of transmission and distribution facilities. In order to project into the future various water use factors, a detailed analysis was made of -6- ---- • .. -.. -.. -----.. .. .. .. .. .. -.. -.. -.. .. -... --.. .. .. - historical and recent water sales/consumption figures so that Carlsbad's water use pattern could be reasonably identified . Utilizing all of the background information and specific engineering determinations of the currently adopted master plans, the entire existing facilities and future facilities were subjected to a complete engineering analysis so that ultimately there would be specifically identified the complete, yet complex, public water system as identified in Exhibit "A." There is identified by color code the existing facilities in red and the future facilities in blue. The final task of the study program was to carefully evaluate ~ of the major facilities that were necessary for water service to the "build-out" of the entire service area and prioritize the construction program, taking into account possible expansion needs and timing with obsolescence where replacement/enlargement was in order . As a point of information, this report will make reference to District boundaries, City of Carlsbad "sphere of influence," City service area, and the total City limits of today. The llistrict service area of 20,000 acres is roughly two-thirds of the total City area as defined by the "sphere of influence." The remaining 10,000 acres are served by two neighboring water agencies; namely, the San Marcos County Water District and the 0livenhain Municipal Water District. Statistics for the District and the entire City will, therefore, be different. -7- III. SERVICE AREA AND EXISTING DISTRICT-WIDE FACILITIES The Water District's 20,000-acre service area of today represents a small reduction from the original boundaries of some 22,000 acres by virtue of detachment of all of the Water District's original territory in the area that is now the City of Oceanside northerly of Highway 78. Add it i anally, mi nor adjustments in boundaries were made with the San Marcos County Water District and the Olivenhain Municipal Water District as the La Costa community commenced development, taking into account geographical and topographical considerations and the water agency having the greatest capahil ity to pro vi de economical public water service. As mentioned earlier, at the inception of the Water District, the Carlsbad community area westerly of El Camino Real and northerly of Agua Hedionda Lagoon together with the small colony of Terramar constituted the original urban area and irrigated agriculture was the predominant land-use activity in the remainder of the District until the La Costa community began flourishing in the middle 1960's. We have since witnessed the vast residential and, most recently, commercial development along the coastal area south of Agua Hedionda Creek, including the major "Carlsbad Car Country," recreational -tourist -commercial areas, and the residential develop- ments between Palomar Airport Road and the Batiquitos Lagoon. Of course, the major commercial center of Plaza Camino Real and all of the apartments, condominiums, and residential dwelling units along El Camino Real and easterly into the Calavera Hills area have resulted in the substantial reduction of areas of irrigated agriculture by the conversion of the land uses. The following Table I shows the recent trends in water production and sales: -8- .. -.. .. TABLE I • • FISCAL YEAR 1978-79 1979-80 1980-81 1981-82 1982-83 1983-84 -Total Water Production 11,162 12,223 13,308 12,715 11,878 12,895 .. (in acre-feet) .. A . Domestic Sales 7,430 8,402 8,680 8,570 8,020 9,303 B. Agriculture 3,732 3,821 4,628 4,145 3,858 3,592 - -... Palomar Airport and its surrounding areas have witnessed one of the most dramatic • changes in the countryside by virtue of the new areas of commercial -industrial .. --.. ----.. .. -.. .. -- ---.. -.. - development that are now under way. The District has added major water transmission and distribution facilities for all of this intensive development in the center of the entire service area and as development moves westerly towards the Pacific Ocean along Palomar Airport Road, there will be a rather substantial service area devoted to commerce and industry. After the initial construction programs of the 1957-1964 era, the District carefully monitored the water system requirements in terms of urban and agricultural develop- ment and water delivery capacities so that in 1969, the District commenced planning with our neighboring water agencies, the City of Oceanside and the Vista Irrigation District, to construct the "Tri-Agencies Pipeline." In 1979, the high-pressure pipeline facility was completed to its existing terminus at the intersection of College Boulevard and Elm Avenue in the Lake Calavera Hills community. This main transmission main became the second source of supply to the Water District. Next, the Water District joined forces with the San Marcos County Water District and the 01 i venhai n Municipal Water District to construct the "South Aqueduct Connection" -9- which would provide us with a third source of supply that would serve all of the La Costa area and the southwesterly reaches of our service area. The other major facility of the District is Squires Dam I, an earth-filled dam located northeasterly of Palomar Airport that has a total capacity of 600 acre-feet. This facility was completed in 1964 to provide for emergency storage for the entire District as well as providing for operations -regulation of the system to accommodate the broad fluctuations of daily and seasonal water demands due to the urban developments as well as the vast agricultural areas. Exhibit "A" shows in red color the total extent of the existing water system facilities to date and, of course, because of the pipeline size considerations, many of the smaller distribution lines are not shown on the map. Attention is directed to the numerous transmission lines that are located within the urban development areas and it should be noted that with the availability and utilization of the established master plans of water service, • • • • new developments have participated in their share for the construction of the • important master plan facilities that provide immediate service to the development areas as well as entire sectors where future urban development is planned. -10- .. ---.. -- ---.. -- IV . LAND USE AND POPULATION FORECASTS FOR ENTIRE DISTRICT TO "BUILD-OUT" The City of Carlsbad has an established general plan -land-use plan for all of the lands that are identified within the "sphere of influence" which includes all of the service area of the Water District. Accordingly, all of the currently-adopted master plans for public water service have taken into account the land-use information which translates to overall water service requirements for all spectrums of land uses, including residential units, commercial complexes, industrial sites, governmental units, open spaces, recreational -parks -golf courses, and greenbelt .. uses. The Water District received the cooperation and assistance of the City of ------ ---- -- .. -.. - --- Carlsbad Research/Analysis Group which commissioned a specific "Water Service Area Land-Use Information Report" dated May, 1983 {draft report). This specific report is listed in the Appendix as a reference document. Briefly, the Research/Analysis Group utilized the methodology developed in conjunction with the program of the San Diego Association of Governments (SANDAG) for the monitoring of growth and population projects utilizing a "grid system'' for the entire general plan area of the City of Carlsbad. The City agency had recently completed a similar study for the development of a "School Location Plan" utilizing the 92-acre grid system developed by SANDAG. As a matter of fact, the growth forecasts for the San Di ego region have for some time been identified as a "series" and at the present time, the most recent Series 6 regional growth forecast has been established by SANDAG for the City of Carlsbad. Additionally, SANDAG has prepared a report entitled "San Di ego County Water Authority Member Agencies," dated January, 1985, setting forth population information. The following is SANDAG population data: -11- YEAR 1990 1995 2000 WATER DISTRICT POPULATION 59,315 73,788 86,777 CITY OF CARLSBAD POPULATION 75,300 92,100 107,300 Taking into account a currently-estimated population of some 35,000 people in the Costa Real Municipal Water District portion of the City of Carlsbad, the immediate relationship can be seen with the study program of this engineering report producing a service area with an estimated population of 109,000 people at "build-out." At .. • .. • ---.. ---- • • ---- this time, it is appropriate to better define the term "build-out." Simply stated, • this is the target population of the entire service area of the Water District at the time permanent urban land uses that are specifically identified by the City of Carlsbad and all of the commercial and business activities as well as occupancy of all of the residences are permanently in place. No specific date has been projected by the City of Carlsbad as to the time of "build-out." The following is a summary of the land uses that we have translated to water supply needs resulting in the overall design of all of the major components of the public water system: -12- -- • -.. • • • - • .. • • • - • -- • ---.. -------.. -- --.. -- 1. Residential Uses -Population* 2. Agricultural Uses 3. Industrial Land Uses 4. 5. Commercial Developments (this includes professional and governmental facilities) Recreational Facilities 1D9,000 people 1,600 acres 2,600 acres 900 acres 3 golf courses plus numerous private and public recreation - park areas * Estimate based on 2.54 people per dwelling unit In summary, the precision that will ultimately result from the utilization of the 92-acre grid system will be enhanced as the entire general plan -land-use program is continuously monitored by the City of Carlsbad in order to maximize the -effectiveness of the P.F .M.S. In addition to the public water supply, the City .. .. -------.. ----.. must concern itself with such important facilities as police and fire, park and recreation, education, traffic circulation, public sewer service, library services, social services, and other new public services. Accordingly, it is very important for the Water District to continue with its long-standing policy for placing strong emphasis upon long-range planning and continuous monitoring of developments to insure that the master plan program in its entirety is maintained on an up-to-date basis. -13- v. COMMUNITY WATER RESOURCES San Oiego County, southern California's most southerly coastal land area, with a semi-arid climate, was able to sustain its water supply needs with local sources of rivers, well fields, and impoundment reservoirs along its major streams and rivers until the tremendous growth of the area corning with the advent of World War II in the early 194O's. Then, it became necessary for the formation of a new regional water resources agency; namely, the San Oiego County Water Authority that was formed in 1944. That agency in turn joined the Metropolitan Water District of Southern California, the public water service agency serving the entire southern California region, which sponsored the Colorado River Aqueduct system that would bring that valuable water supply from Parker Dam in Arizona to southern California. Commencing in the 195O's, there has been developed the vast California Water Plan which ultimately pro vi des for the deli very of water from the Oroville Dam on the Feather River in northern California with delivery all the way down to the international border of the United States and Mexico. The Costa Real Municipal Water District places its entire reliance upon its parent agencies, San Diego County Water Authority and the Metropolitan Water District of Southern California, to fulfill their total responsibilities to insure that the local community will have a firm and reliable supply of imported water that will meet all of the community needs for the future. There is strong activity in all arenas of water resources development, including the continued legislative and statewide concern for the completion of the California Water Plan (the through- delta system) as well as continuing the search for the augmentation of the water -14- • • I I I • • • • • • • • • • • • • • • .. • • • • • .. .. -.. - • • ----------.. -.. supply that has been lost to southern California as a result of the determinations made for the sharing of the Co 1 orado River supply with the State of Arizona. Due to the lack of completion of the State Water Project, aggravated by the 1982 defeat of the Peripheral Cana 1 by Ca 1 i forni a' s voters, attention has begun to refocus upon the local water supplies, primarily as a means of having an emergency water supply available at the time of some failure of the imported water aqueduct systems and, additionally, in the time of potential water shortages due to extreme • drought conditions. Carlsbad continues to maintain its water rights in the San .. ---.. Luis Rey River and there is a potential for the utilization of that well field; however, there must be a joint program with all of the water users of that valley in order to provide a regulated environment to avoid deterioration of water quality and providing on a regional basis the production and treatment of water to a • satisfactory level. The City of Carlsbad has recently completed a "Report on the --------.. -.. -.. -.. --- Evaluation of Lake Calavera and the Mission Basin Well Field and Water Resource,'' dated April 14, 1984, prepared by Glenn M. Reiter Associates, which details the potential of the San Luis Rey River well field. A prime recommendation of that report is that the City of Carlsbad and the City of Oceanside should enter into a joint development program so that the full potential of that local water supply can be evaluated. The City of Carlsbad also has ownership of a second well field in the Agua Hedionda Creek upstream of the coastal Agua Hedionda Lagoon. Originally, this well field supplied the Terramar community and there has been virtually no use of the well field in the public water system since acquisition in 1958. This water supply is highly mineralized (T.D.S. = more than 1,000 MGL) so that in any develop- ment mode, demineralization would be necessary in order to improve the water quality sufficiently for use in the public water system. Ultimately, the efficacy of -15- developing the Agua Hedionda Creek well field would be the result of a comprehensive study of the practical yield that could be achieved in the small drainage basin and the practicability of utilizing the seasonal runoff from the creek. One other important source of local water supply would be the vast quantities of reclaimed wastewater that could be made available by the activation of several local wastewater reclamation plants as well as construction of new facilities, depending upon the market needs for such a secondary water supply. The City of Carlsbad has in place the new Calavera Hills wastewater reclamation plant and has adopted a comprehensive master plan for the entire City so that there is a strong potential for the construction of the various components of a reclaimed wastewater distribution and storage system that could supply the secondary water service needs of the Costa Real Water District potable water service area. Additionally, the Leucadia County Water District has in operation its wastewater reclamation plant located at the head of the Bat i quitos Lagoon and it, too, can furnish reclaimed wastewater to the several water users as the needs arise. Carlsbad's neighboring water district to the southeast, Olivenhain Municipal Water District, has an active and ambitious plan for the development of the Mount Israel Reservoir, which will provide for a small impoundment area, but more importantly, provide for a large seasonal storage reservoir to store imported water and then the local water service requirements during peak periods can be drawn from this impounding reservoir. Preliminary engineering studies indicate that the proposed reservoir would have a total capacity of up to 12,000 acre-feet of water and an adjunct to the facility would be a large-scale recreational area as well as fishing and boating on the reservoir. Because the Costa Real Water District has a joint -16- --.. -.. --------- ... • .. • .. .. .. -.. -.. -.. -.. -.. -- pipeline system in place with the Olivenhain Municipal Water District, our District should consider participation in this regional storage reservoir project to insure the availability of the emergency water supply for the future. The Water District has been very fortunate to work with its neighboring agencies over the years to develop joint pipeline projects, provide for emergency inter- connections between water agencies, and cooperate at the local community levels to insure mutual aid and assistance where necessary. As time goes on, it will be imperative for all agencies to work to greater levels of joint effort and to expand upon the concepts of neighborhood and regional development projects that will benefit the entire coastal North County area . Up to this point, we have discussed in detail the matters of availability and quantities of water that will be provided to the Carlsbad community to the point of "build-out;" however, we should focus upon the water quality aspects of our community water supply. In the case of the imported water supply, Metropolitan Water District of Southern California has the complete responsibility to insure that our water supply is pure, wholesome, and meets all of the rigid standards of physical, chemical, and bacteriological quality. To this end, Metropolitan provides complete treatment for all of its domestic water service, and Carlsbad's three water connections to the San Diego Aqueduct system are piped to furnish "finished water" to the District. As the supply leaves the main treatment facilities of Metropolitan, there is a final disinfection treatment known as ''chloramination" and at the takeoffs for the direct delivery to Carlsbad, facilities are in place or can be constructed to provide supplementary disinfection treatment. In the case of • the local water supplies, there would be extensive treatment and as noted earlier, .. .. -17--- demineralization utilizing expensive electrical energy that would be necessary because of the high mineral content of our local water supplies. In time of substantial seasonal rainfall, it is possible that the local stream flows may improve in chemical quality; however, in the long term, we would expect that viability of the project would have to take into acccount the economics of demineralization. Overall, water quality considerations are not an element that would be compromised in any manner insofar as any source of supply, be it imported or locally developed. Today's water consumer and the future customers will expect, demand, and have the right to enjoy life with a reasonable quantity of water with the highest attainable level of quality, -18- -.. -.. .. .. .. -------.. .. -.. -.. ---.. ---.. .. .. .. .. --- VI . OPERATIONS ANO MAINTENANCE The unique character of the 20,000-acre service area of the Water District, which starts at sea level of the Pacific Ocean and moves easterly to the foothill areas with a maximum elevation of close to 600 feet in the La Costa area, describes the geographical and topographical setting that significantly impacts the overall design characteristics of the water system as well as the daily operations of the entire system. The original design parameters for the major transmission mains, arterial mains, and storage facilities envision water service in such a manner that there would be some pumping to reach the high hills areas of the Water District. As time went along and the local master plans came under intensive study, the Water District moved to the basic concept that it would take advantage of the high water pressure available from the San Diego Aqueduct system (approximately elevation 1000) so that in the development of new transmission facilities, the District would maintain the high-pressure water service to a 11 of the highest points of the Di strict service area in order to eliminate pumping systems that would require large amounts of energy, either electrical or internal combustion engines, which would become very expensive in the years ahead. As a matter of fact, with the completion of the Tri-Agencies Pipeline in 1979, plans have been progressing to where a large pumping station in the Lake Cal avera Hi 11 s community area has al ready been taken out of service and an existing pumping facility at the Ellery Reservoir in the City service area will be taken out of service upon the completion of a short section of a City service area intertie . With the entire District being under a mode of high-pressure water service with a gradual reduction in water pressure as the system is developed westerly towards -19- the coastline, the major thrust of the operations and maintenance becomes one of supervising the entire water system contro 1 with pressure-regulating stations at the various strategic locations. The master plan for the entire District service area carefully i denti fies the various pressure zones which are appropriate and Exhibit "A" shows in great detail the various locations of existing pressure- regulating stations as well as all of those proposed in the future. Coupled with the regulation of water volumes and pressures, there is a continuous need for e 1 evated storage to accommodate the peak flows, fire flows or other emergency needs. Here again, the operation mode is for the continuous monitoring of water levels in these elevated storage tanks and additionally, Squires Dam I, our main emergency storage -regulating reservoir, provides the flexibility of operating this substant i a 1 water system serving in its ro 1 e as a regulating reservoir to match the constant flow deliveries from the three aqueduct connections. From the inception of the construction and operation of the transmission facilities in 1957, the District has relied on one supervisory control system providing for the control of flow into Squires Dam I. The remainder of the operations activities are carried on by the District's personnel in traveling to all of the remote locations of the reservoirs. With continuing urbanization, the coverage of the entire District facilities will include local neighborhoods and fully improved streets. This master plan study has, as one of its main benefits, put together a fully integrated water system based upon all of the locally-adopted master plans and as a consequence, identifies in great detail the manner in which the entire operations can be conducted and control the inflow to the District from the three aqueduct connections. In this setting, it is appropriate to proceed with a practical design and construction of a supervisorial control system that will provide for a central -20- --------.. control facility at the Water District headquarters to regulate the flows in the entire Di strict. This type of a control system becomes practical as the entire area urbanizes and there are sufficient underground telephone and cable t.v. communication cables available for all of the District's reservoirs, pressure- regulating stations, pumping stations, control valve stations, and such facilities • that can be monitored instantaneously by telemetry. The central control station ---.. .. -.. ----------.. .. .. --- .. .. .. can take that data and make the appropriate adjustments in the entire water system to accommodate hourly and daily flow demand fluctuations. Ultimately, it would be conceivable that the District would consider a fully "comp uteri zed" operations system as is now the case in some large public water system operations • The maintenance and upkeep of the community water system is a continuous task of providing sufficient surveillance and monitoring of all of the facilities in place so that there is a continuous level of preventive maintenance and orderly reconditioning and rehabilitation of facilities. It is fortunate that the District promulgated some of the highest standards for construction from the commencement of its construction program in 1957 so that the District is burdened primarily with the specific prob 1 em areas of corrosion of stee 1 pipe that was a part of the original construction program. As permanent urban developments commenced in the early 1960's, non-corrosive "asbestos cement pipe" and a variety of high quality appurtenances were adopted as standard specifications of the District so that the entire distribution system of the Water District is maintained at a high level of its original quality and durability. The above-ground regulating reservoirs include both steel tanks as well as prestressed concrete tanks, and the steel tanks in particular require regular inspection, rehabilitation, and repainting from time to time. The ~later District has also made advances in the environmental considerations -21- of its many facilities so that the reservoir sites have been landscaped, including the planting of trees and shrubs, so that there would be full compatibility with the attractive neighborhood settings. As time goes on, the District will be called upon to increase its financial resources and its maintenance attention to these facilities to insure the "good neighbor policy" and mitigate any levels of "visual pollution." At the present time, the District maintains one basic system of telemetry; that is, the remote control -information system for water system operations. This system currently in service provides for the main Palomar Airport Road aqueduct connection to be monitored by way of remote water level recorders at the Santa Fe I terminal- regulating reservoir. With this water level information being transmitted to the District Operations Center on El Camino Real, there is established an electronic linkage so that an "in-line" control valve in the main line in El Camino Real is operated from the District office to maintain a proper water level in the Santa Fe I reservoir some four miles away. Ultimately, the District will need a network of such telemetry systems to adequately and efficiently control the day-to-day operations program. In the arena of major transmission mains that are steel pipe, the District has in place corrosion control systems known as "cathodic protection systems." This means of protecting steel pipe is important for the long-term utilization of steel pipe where the corrosion potential is very high. In all instances where steel pipe is utilized because of design considerations, test stations are required and at an appropriate time, the necessary protection features should be constructed. -22- • I • • • • • • • • • • • • • • • • • • • • • • • • • • • --.. - • - - • -- .. - • ---.. -... ---.. ---------.. -----.. --- - Thereafter, a regular testing and surveillance program must be adhered to in order to insure that the steel pipe is fully protected at all times. Inasmuch as the fact that the Di strict receives fully treated water from the San Diego County Water 11.uthority, it is incumbent upon the District to maintain the highest level of operations and maintenance so that there is no degradation in the quality of the water that is ultimately served to the customer. 11.t the present time, the major source of potential water degradation is the open, unlined reservoir, Squires Dam I. At this open reservoir, there is a regular water quality monitoring program and to insure the purity of the water, the District provides for supplemen- tary disinfection as the water is drawn from the reservoir. This report identifies a project that would result in the extensive modernization of this open reservoir, resulting in a full lining and a covering system. -23- VII. DESIGN PARAMETERS FOR COMMUNITY WATER SYSTEM A. Specific "Unit Volumes" for Population, Commerce, Industry, Recreational and Other Uses. In order to determine water demands for present and projected land uses, an extensive study was made of actual water use. Water meter records were reviewed covering the period from July, 1979, through June, 1982, in the City of Carlsbad service area and the Costa Real Municipal Water District. Approximately 530 meter records were reviewed for residential, industrial, commercial, schools, freeway landscaping, farming, and public facilities. These records were compared with studies conducted in other similar areas in • • • • • • • .. • • - • -• • -.. - Orange and San Diego Counties. As expected, there were wide variations of • water uses in similar types of land uses. In most water studies, a water demand is applied for each person in the projected future population. The only available data is from meters serving a dwelling unit. Since our detailed information from the City of Carlsbad Research/Analysis Group was in single-family or multi-family dwelling units, we analyzed water demand according to dwelling units. The meter records for single family and multi-family varied widely and there was a concern that averages would not properly project future demands. Further studies were made of the actual lot sizes of the different residential area studies. The meter records were converted to gallons per day per dwelling unit, and compared with the number of dwelling units per gross acre (including streets). This data plotted into a fairly uniform curve. This -24- ------.. .. --.. .. .. -.. .. --- ---.. -.. .. .. -.. -.. --.. .. -- .. .. -.. .. -.. .. .. -.. -.. .. • .. curve was compared with the results of other studies and design criteria of other water agencies and the results were very similar. Therefore, a design curve was established which indicates demands based on the number of dwelling units per gross acre ( see Pl ate I). This curve was used in the study to apply demand factors to the dwelling units provided by the Research/Analysis Group for the ultimate "build-out" of the study area. -25- " 'i ~ I I I ~ " LI ~ " .. I " ... I ~ p u 'l M ! ' .. n .. ~ ~ 1800 1600 t:::: 1400 z ::::, C, ~ 1200 ..J ..J w ~ C 1000 a: w c.. ?i 800 C a: w c.. 600 • ..J c( C, 400 200 0 0 I I I ! I I I I I I I l l I I I l l l l l l l ! i I I I I l I l I I I I l l l l l I l I I I l ' ' ' \ ', ' \\ \ '· ',, .... .... .... .... ...... 2 4 -26- RESIDENTIAL WATER DEMAND BASED ON DENSITY OF DWELLINGS PLATE I MASTER PLAN FOR PUBLIC WATER SYSTEM -------- ·-······ .... .... .... .... ...... "'"-----' -----1. ___ ------------------~---------·----------i,.--------------------■ ----------· "·--------------------'"'---------■ ----------· ----------. ---- 6 8 10 12 14 16 18 20 22 24 26 28 30 32 DWELLING UNITS PER ACRE C.M.W.D. SZ-11$ • • • • • • • • .. • • -.. - • -• .. ---.. .. -.. -.. .. -.. -.. .. ---- Industrial water uses varied considerably as well. Records varied from around 100 gallons per day per acre (gpdpa) to over 6,000 gpdpa for Burroughs . In the City service area, actual use averaged around 1,800 gpdpa, once Burroughs was excluded. In the Costa Real Municipal Water District, meter data was reviewed for Beckman Instruments and Hughes Aircraft, which resulted in uses of 2,400 to 3,500 gpdpa for the highest years of the three years studied. When the Palomar Airport Business Park was developed, Costa Real Municipal Water District planned for a maximum day flow of 2,000 gallons per minute (gpm) plus 4,000 gpm fire flow for the 408.6 acres in the park. This results in an average yearly demand of 3,524 gpdpa. Other agencies use values from 1,700 to 4,900 gpdpa for industry. The principal industrial complex in the entire study area will be around the Palomar Airport. This development could be similar to Orange County (John Wayne) Airport where Irvine Ranch Water District projects industrial demand of 3,000 gpdpa. Based on the data reviewed and the above facts, we have selected the demand of 3,000 gpdpa for the industrial areas, but maintain the 2,000 gpm for the Palomar Airport Business Park • In commercial areas, the demands differ according to use and, therefore, there are rather varied demands. Mesa Consolidated Water District (Costa Mesa) uses 1,600 gpdpa for large shopping centers, 2,680 gpdpa for general commercial and 3,125 gpdpa for neighborhood commercial. Irvine Ranch Water District uses 1,800 gpdpa for commercial. The City of Signal Hill uses 2,680 gpdpa. Meter records in the City of Carlsbad service area indicated the following results: -27- Automobile Retail Sales Intensive Regional Retail Restaurants Motels 980 gpdpa 840 gpdpa 2,910 gpdpa 3,360 gpdpa There are not many new commercial areas proposed in the study area. Therefore, the existing data should give a reasonably accurate trend. For this study, a minimum of 1,000 gpdpa was used for automobile and intensive regional retail, 1,800 gpdpa for general commerce, including the central business district, and 3,000 gpdpa for neighborhood commercial and restaurants, and 3,500 gpdpa for motels. For agricultural areas, meter records were reviewed for several areas. In general, these results indicated demands less than what is normally considered necessary. For berries, the meter records varied to 1,880 gpdpa ( 2 .1 acre- feet) with a high month of 3,609 gpdpa. Some local farmers indicated the need of 3.5 acre-feet per year (3,125 gpdpa). From tomato meter records, 1,090 gpdpa (1.2 acre-feet per year) was the yearly average. A high month was 2,753 gpdpa. It has been indicated that tomatoes require from 2.0 to 2.8 acre-feet per year (1,786 to 2,500 gpdpa). Since tomatoes are the main crop within the study area, we used a demand of 2,500 gpdpa to assure an ample supply. This demand would al so support up to nine dwe 11 i ng uni ts per acre if controls and some existing trends shift. For freeway landscaping, records for three years averaged 2,640 gpd per 1,000 feet of freeway. From other three-year records, the highest-use year of the -28- I I I • I • • • ■ ■ • • • • ■ ■ ■ • • • • • --------.. ---------.. .. .. .. .. - three years studied was four to ten percent higher than the average. By increasing the above average by ten percent, a high year would be approximately 2,900 gpd per 1,000 feet. This demand was used for the study. Schools were analyzed as follows: TYPE Elementary Junior High High School AVERAGE SIZE ACRES 10 20 50 PERCENTAGE LANDSCAPED 60 50 40 ACRES LANDSCAPED 6 20 Estimating that landscaping requires 3. 5 acre-feet per year, less 1.0 for annual rainfall, leaves 2.5 acre-feet per year or 2,230 gpdpa. From the City of Carlsbad sewer study, the following figures were determined for water use within the school buildings: Elementary Junior High High School 500 gpdpa 1,100 gpdpa 1,300 gpdpa Applying these figures to the above areas, we obtain the following: Elementary Junior High High School 1,840 gpdpa 2,215 gpdpa 2,190 gpdpa -29- These demands are very similar to residential demands for the range between one to six dwelling units per acre. Therefore, in undeveloped areas, actual sites for schools need not be precisely located because adjacent residential demands will be very similar. Fire flow requirements will be the main concern for school sites. For the study, 1,900 gpdpa for e 1 ementary schoo 1 s and 2,200 gpdpa for junior and senior high schools were used for the demands. Operating pressures within the study area were redefined in a few areas, with most remaining the same as established by present use or adopted master plans. Zones are set using current development trends and California Department of Public Health guidelines, The minimum allowable pressure has been set at 40 pounds per square inch (psi), with the exception of smal 1 areas in the developed City area and on Mount Marron, and a maximum working pressure of 150 psi for most areas. The minimum pressure may be as low as 20 psi under fire flow conditions. Water main sizes were determined using a maximum velocity within the pipe 1 i nes of approximately eight feet per second with some exceptions for peak hour or fire flow conditions. The maximum flow in each of the pipelines was based on the maximum daily consumption plus the required fire flows or peak hour demands, whichever was greater. In addition, the pipelines are sized so that head 1 asses due to friction wi 11 not result in pressure reductions be 1 ow those previously stated. Maximum pressure has been set for 150 psi, except where it is necessary to extend pipelines across low I I • I areas where the pressure may be greater. These high pressures represent a • maximum pressure at static conditions within the pressure zones. -30- • • • • • ---• • • • -------.. -.. .. .. -.. .. .. .. .. -.. -.. -.. .. - .. -.. - It has been customary in the water industry to double the average yearly water demands to obtain the maximum day flows and to increase the average yearly demand by a factor of four to obtain the peak hour fl ow. A review of current records indicates that these factors should provide good results. Water use records were reviewed for turf and agricultural i rri gat ion to see if any other adjustments should be considered due to more uniform use of water. From studies conducted by the University of California, South Coast Field Station, turfgrass requires about 42 inches per year. The Carlsbad area normally receives about 12 inches per year of rainfall resulting in about 30 inches per year of i rri gat ion required or an average of two and one-half inches per month. During hot months, usually July and August, the average demand is six inches per month or 3.7 gpm per acre. This is approximately twice the yearly average. Due to the uniform application, this amount would be similar to a maximum day. If irrigation is applied for 12 hours of the day, the peak hour would be twice the maximum day. Due to this reasoning, it is felt that the above maximum day and peak hour factors can be used for turfgrass and landscape irrigation • From the agriculture meter records, the peak months of water use ranged from 1.6 to 3.9 of average yearly use. The average ratio of nine farm areas reviewed was 2.2. Using the same reasoning we used for the turfgrass, use of the maximum day and peak hour factors for agricultural irrigation does not appear out-of-line • -31- B. Fire Protection Requirements Fi re fl ow requirements have been determined with the guidance of the Fi re Marshal of the City of Carlsbad, utilizing current insurance underwriters requirements and predictions of the type of construction that will be utilized in the future. The fire fl ow requirements for each building or development are dependent upon the size of building, location, type of construction and whether a fire sprinkling system is included. In order to make future projections, we can only utilize average figures from present types of development. The established fire fl ow requirements used in the report are summarized in Table II. The duration of time for the fire flow requirement is set forth in Table III. -32- • • • • • ■ ■ ' --.. -TABLE II -FIRE FLOW REQUIREMENTS - -DWELLING UNITS FIRE FLOW (IN LAND USE PER ACRE GALLONS PER MINUTE) --1. RL -Low Density ( 0-1.5 1500 -1750 -2. RLM -Low Medium Density ( 1.5-4 1750 -3. RM -Medium Density 4-10 ) 2500 -4. RMH -Medium High Density 10-20 ) 3500 -5. RH -High Density ( 20-30 3500 -6. N --Neighborhood Commercial 3000 -4000 -7. C -Community Commercial 3000 -4000 -8. PI -Industrial 3000 -4000 .. 9 E, J, H,HC,P-Schools 3000 -10. RR! -Intensive Regional Retail 6000 -----NOTE: Fire flow recommendations from City of Carlsbad Fire Department. ----.. .. ---.. -33--- TABLE II I REQUIRED DURATION FOR FIRE FLOW REQUIRED FIRE FLOW GPM 10,000 and greater 9,500 9,000 8,500 8,000 7,500 7,000 6,500 6,000 5,500 5,000 4,500 4,000 3,500 3,000 2,500 and less -34- REQUIRED DURATION HOURS 10 9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 ---------------------.. .. .. ... .. .. -.. -----.. .. .. • -.. --.. .. ------------.. -------------- .. -... - c . Hydraulic Network Analysis In past years there have been numerous water system studies for separate areas within the Costa Real Municipal Water District and within the City of Carlsbad service area. To date, no overa 11 analysis of the magnitude of this study incorporating the entire area in one report has been done. Accordingly, to begin this study, all existing master plans in the area were thoroughly reviewed. These included City of Carlsbad studies prepared by Kubota & Lill in January, 1966, and Engineering Science in 1969, plus a study of the Northeast Quadrant Water Service Area by Woodside/Kubota in June, 1979, Studies within the Costa Real Municipal Water District included the following that were prepared by the authors of this report: Rancho Carrillo -Master Plan for Public Water System -July, 1974 Improvement District No, 2 -West of El Camino Real (Poinsettia Area) - February, 1975 Improvement District No. 3 -North and East of El Camino Real - July, 1977 Improvement District Nos. 2 and 3 -Palomar Airport Area -March, 1981 La Costa Reimbursement Study -April, 1981 North and South of Palomar Airport Road and East of El Cami no Real - July, 1982 Overview for Public Non-Potable Water Sources and Master Plan for Public Non-Potable Water System -September, 1982 -35- Next, utilizing a complete "computer program" for engineering analysis, a pipe network was set up with 12 different pressure zones or areas. After i nit i a 1 computer runs, revisions and adjusted connections were made between the different areas. Added computer runs were made to test the total system. Pipes in the system were analyzed and increased or decreased in size as needed, Several pressure-reducing stations were removed and minor adjustments made. Once the total system appeared to balance, a final analysis was made on the main feeds from the aqueduct, so the ultimate sizes could be determined. The final results of the computer data for maximum day and peak hour have been assembled in notebooks for future reference. This data, along with the proposed development in each 92-acre grid of the study area, establishes a basis for future review of the system and a means of analyzing any possible changes in future development. Al 1 of the technical data generated for this Master Pl an Study has been compiled into one technical supplement entitled "Water System Computer Analysis for Master Plan for Public Water System and Supplementary Technical Data," dated February, 1985, Included in this supplement are the following principal items: 1. 2. Population and Land Use data devised from the input of the City of Carlsbad, Grid maps established by the City of Carlsbad. -36- .. .. .. .. --.. .. ... ---- - --.. -.. • --.. -.. .. --• .. .. .. • • .. • • • • • • -• -• • ---.. -.. -.. -.. .. .. .. .. .. .. -.. .. .. .. --.. 3, 4 . 5, Compilation of data to set the design flow demands for the entire water system . Complete water system layout sheets and "computer run" data sheets for all required mathematical calculations. A large District map identifying the several pressure zones estab- lished on the basis of the master plan studies and the development of the water system to date. -37- VIII. LONG-RANGE PROGRAM FOR TOTAL WATER RESOURCE DEVELOPMENT AND MANAGEMENT REQUIRED NEW FACILITIES AND INTEGRATION WITH EXISTING SYSTEM With the detailed discussions and the actual implementation of all of the processes for evaluation of land-use information, water consumption data, review of the numerous engineering reports as listed in the Appendix, making an assessment of the full spectrum of design parameters, and ultimately conducting the lengthy and complex engineering analysis of the composite of all of the currently-approved master pl ans by means of a "computer program," we have arrived at the pl ace where we can specifically identify the various facilities that will be necessary to be constructed over a period of time in order to adequately serve the entire Water District at build-out. Of course, these recommended facilities are all based upon the current practical levels of engineering design practices and projections, and we must restate the fact that a master pl an such as this must undergo continuous evaluation for updating in order to reflect the necessary changes as civilization makes its advances. There is presented herewith in detail the major Mtcil it i es segregaterl into the various elements of the entire community water supply. One important aspect of this presentation is our recommendation relating to the projected time at which each of these facilities should be placed into the long-range program for construction. We have established the following phasing for all of the public water system facilities: PHASE I PHASE II PHASE III -38- 1985 -1990 1990 -2000 after 2000 • • • • • • I • I • • • I - -,. - .. -- -.. ----- -.. ---.. ----- .. This phasing system is based upon the reco11JT1endations made by the City of Carlsbad so that the Water District's public water system expansion program will be in coordination with all of the public facilities as identified in the "Public Facilities Management System" (P.F.M.S.). In fact, one of the City of Carlsbad's latest master plan studies, namely the "Sewer Master Plan -City of Carlsbad" dated June, 1984, prepared by Neste, Bructin P. Stone, utilizes the same system and identifies specifically those major public sewerage facilities that are projected to serve the build-out requirements of the City of Carlsbad sanitary sewer system. Of course, as stated earlier, the overall growth programs as being monitored by the P.F .M.S. will quickly identify those projects which should be accelerated and those, perhaps, which can be delayed for a period of time. Although the entire master plan describes in detail all of the transmission facilities recommended to fulfill the capacity requirements to "build-out," there is, of necessity, the need to isolate those major facilities which, on the basis of overall District-wide benefit, should be the specific responsibility of the District to plan, finance, and construct on a priority basis matched with the pace of growth and water demand. To achieve this goal, the Board of Directors has a 1 ready activated a comprehensive pub 1 i c po 1 icy with the sponsorship of the 1984 "Certification of Participation" (C.O.P.) financing program involving a financing package of $12.6 million to construct three large terminal -storage -regulating reservoirs (see Table IV). In addition to all of the reservoir projects, pipelines of 20 inches or larger have been recommended as part of the major facilities to be • the responsibility of the District. -----39--- All of the projects that are described in detail include the estimated construction cost based upon 1984 dollars, so that at such time a project is activated for construction, the appropriate adjustments should be made to take into account the construction cost indexes that are currently in force (the Engineering News Record Construction Cost Index is the common factor that can be utilized for this purpose). A 11 of the estimated construction costs inc 1 ude the actua 1 cost for • -------.. - construction as well as the incidental expenses. In the event there are special • financial proceedings such as major bond issues, assessment district proceedings, or the like, any expenses for "financing" will need to be added to the estimated construction costs that are stated herein. A. Seasonal Storage and Terminal -Regulation -Distribution Storage The Water District's original concept of providing "finished" or treated water storage only within the District's service area was attained with the construction of Squires Dam I in 1964, providing for some 600 acre-feet of ----.. .. -.. -.. .. seasonal -emergency storage. Because of the location in terms of elevation, .. the reservoir has a 1 imited capability for water service to the higher grounds of the Water District unless substantial pumping takes place; thus, in times of emergency or shutdown of the aqueduct system, the District has had to rely upon interconnnections from neighboring water districts. As the District was growing, it became evident that we would want to increase the capacity of our local seasonal -emergency storage so that in 1972, the District acquired a 60-acre site immediately to the north of the existing Squires Dam I. In order to preserve the land and ultimately construct Squires Dam II, preliminary engineering studies have demonstrated the feasibility of -40- -.. ... -.. .. -----.. .. - ---• .. • .. .. ... .. .. .. .. ----• -----.. -.. ----... .. ... .. .. .. .. an earth-filled dam and there would also be involved a lining system and entire covering system inasmuch as treated water would be stored. Under the latest public health requirements of the State Department of Health Services, it would be mandatory for the District to construct a covering system for a reservoir of this character. Because of the need to move forward with the rehabilitation and reconstruction of the existing Squires Dam I with a lining and covering system (this will be discussed further in a later section of this chapter), we have recommended that Squires Dam II be a Phase I project and we estimate a total project cost at $6,200,000.00. Table IV 1 i sts these seasonal -storage facilities. Terminal -regulation -distribution storage facilities are essential for the day-to-day operations of the di stri but ion system and a 11 of the previously- adopted master plans have specifically identified the storage reservoirs and where the capacities would have to be increased or new facilities constructed. Table IV also identifies the total storage requirements for the entire District service area and notes in particular that we have identified the elevations for the purpose of relating to the pressure zones that have been established for the District: -41- I .i,, N I RESERVOIR OR LOCATION A. SEASONAL STORAGE Squires Dam I Squires Dam II A -Subtotals RESERVOIR OR LOCATION DESIGN ELEVATION 490 500 FLOOR ELEVATION B. TERMINAL-REGULATING-DISTRIBUTION SYS. Elm -City service area 255 Ellery -City service area 330 Skyline -City service area 241 "B" TAP Terminal -Cala. Hills 446 "C" -No. of Cannon Road 392 Evans Point -Kelly Ranch 349 "E" -Paul Ecke Ranch 264 "D" -So. of Palomar Airport Rd. 384 La Costa -Alga Road 319 Hi -East of El Fuerte 700 "A" (Santa Fe) -No. of Palomar 664 Airport Road Santa Fe I I -So. of Palomar 700 Airport Road B -Subtotals GRANO TOTALS OF COST * Under construction. TABLE IV STORAGE REQUIREMENTS (in million gallons) CAPACITY EXISTING FUTURE 200 -0- -0-300 200 300 CAPACITY EXISTING FUTURE 1.5 -0- 5.0 -0-1.5 -0-6.0* -0- 1.0 -0- -0-2.5 1.5 -0- 2.5 14.5 1.5 1.5 6.0* -0- 2.5** -0- 9.0* 9.0 38.0 27.5 ** To be abandoned; replaced by Santa Fe II Reservoir. *** First increment -6.00 M.G. **** Second Increment -8.00 M.G. ***** Second Increment -9.00 M.G. 1111111111 •■•■I ■ a ■•■■■ • • TOTAL 200 300 500 TOTAL 1.5 5.0 1.5 6.0 1.0 2.5 1.5 17.0 3.0 6.0 -0- 18.0 63.0 PHASING (ALL COSTS IN MILLIONS OF DOLLARS I II I II 6.200 6.200 PHASING (ALL COSTS IN MILLIONS OF DOLLARS I 2. 750* 1.200 3.000*** 2 .400* 4.500* 13.850 20.050 - II 4.500***** 4.500 4.500 II I 4.00**** 0.60 4.600 4.600 • • ■ • -• -.. • .. -.. .. .. .. .. .. --.. .. • -------- --.. ----.. ---- B • Major Transmission Facilities --Replacement and Enlargement This latest updating of all of the currently-adopted master plans shows some minor modifications in the sizing of the main transmission facilities; however, by and large, our basic strategy of pinpointing the need for larger transmission mains to be tied in with the replacement of the existing steel water mains constructed in the era of 1957-1963 will be very practical provided there is sufficiency of the other smaller feeder lines and a complete looping of the entire Di strict from north to south. You wi 11 note that we are recommending that all but one of the replacements of existing steel t ransmi ss ion mains and the companion enlargement of those pipelines for capacity purposes be geared to the Phase III period, or after the year 2000. The one specific exception, namely the second supply line from the San Diego Aqueduct system to our Santa Fe II Reservoir system, would be in Phase II, primarily for the purpose of increasing our pipeline deli very capacity into the District during the period of 1990-2000. Following are Tables V and V-A, which describe each of the major pipelines together with their construction cost and the phasing period that we are recommending: -43- DESCRIPTION Palomar Airport Road (36", 39", and 42" steel main) El Camino Real (20" to 36" steel main) Squires Dam (42" steel main) TOTALS TABLE V MAJOR TRANSMISSION FACILITIES REPLACEMENT ANO ENLARGEMENT ESTIMATED CONSTRUCTION COST (1985 DOLLARS) 4,100,000 3,600,000 1,500,000 9,200,000 -44- PHASE I PHASE II (1985-1990} (1990-2000} 1,092,000 1,092,000 .. .. .. • .. .. PHASE III - (After 2000} • 3,008,000 • --3,600,000 • • 1,500,000 -.. .. 8,108,000 • • .. .. .. .. .. .. .. .. .. -... .. .. -.. - ----.. ---.. I. -.. ---.. -.. TABLE V-A MAJOR TRANSMISSION FACILITIES REPLACEMENT AND ENLARGEMENT DETAILED ESTIMATE -QUANTITIES AND COST PALOMAR AIRPORT ROAD A. 42" diameter steel pipe (replaces 27" diameter pipe) 5,200 l .f. @$210.00/1 .f. B. 39" diameter steel pipe (replaces 27" diameter pipe) 6,500 l .f. @$200.00/1.f. c. 36" diameter steel pipe (replaces 27" and 20" steel pipe) 7,300 l.f. @$190.00/1.f. D. Incidental expenses (includes project contingencies) ESTIMATED TOTAL • II. EL CAMINO REAL .. .. -.. ---------.. --... - A. 36" diameter steel pipe (replaces 20" diameter pipe) 12,100 l.f. @$190.00/1.f. B. 24" diameter steel pipe (replaces 20" diameter pipe) 4,000 l.f. @$150.00/1.f. c. 20" diameter steel pipe (replaces 10" diameter pipe) 2,900 l.f. @$130.00/1.f. D. Incidental expenses (includes project contingencies) ESTIMATED TOTAL III. SQUIRES DAM -TRANSMISSION MAIN A. 42" diameter steel pipe (replaces 27" diameter pipe) 6,200 l .f. @$210.00/l .f. B. Incidental expenses (includes project contingencies) ESTIMATED TOTAL ESTIMATED GRAND TOTAL -45- $1,092,000 1,300,000 1,387,000 321,000 $4,100,000 $2,299,000 600,00D 377,000 324,000 $3,600,000 $1,302,000 198,000 $1,500,000 $9,2DO,OOO In utilizing the basic strategy that the pipelines be enlarged at the time the replacement is necessary, there must be a firm understanding that certain instances may arise where 1 imi ted sections of the existing stee 1 1 i nes may need replacement due to a local operations and maintenance circumstance such as advanced corrosion, accessibility, or utilities conflict, In these situations, there must be flexibility exercised and individual determinations made to advance the schedules of replacement and enlargement. -46- • • I • I I • I I I • I • I • I --.. .. ... -----.. ---------... ---------.. -,. .. ,. -.. - c . Water Treatment, Pumping/CoGeneration and Operations Facilities In this category of facilities, the District has as a first priority a disinfection program for the water supply from the Tri-Agencies Pipeline connection system. We anticipate that this wi 11 be a joint project with the City of Oceanside and the Vista Irrigation District and the project is scheduled for the immediate future. With the recent focus upon local systems of generating electrical energy, the District has already conducted the preliminary engineering study demonstrating the feasibility of constructing and operating an electrical generating system at Squires Dam I to harness the energy of the free discharge into the reservoir from the aqueduct connection. This initial study identified the potential of long-term revenue and the timing of such a program wi 11 come into focus as the overall costs of energy production become more stabilized. The District has a number of other locations where small hydroelectric units can be installed; however, we are recommending that cogeneration facilities be limited to Squires Dam I (and II) as well as Point "D," which is the inter- section of Palomar Airport Road and El Camino Real where we have a major pressure-regulating station. The District-wide operations program will require substantial modernization and implementation of telemetry -supervisory control systems. A careful look at Exhibit "A" will demonstrate the numerous regulating stations and reservoirs that must all have continuous surveillance and the strategic locations where control valves wi 11 need to be operated on an hour-to-hour -47- • • • • or daily basis in order to pro vi de a full level of service to a 11 of the -District's 20,000-acre service area. Accordingly, this master plan update ■ i dent i fies a substantial commitment to this modernization program coupled • with the capability to provide this service with the advent of urban development and a local system of underground telecommuni cati ans. In some instances, it may be necessary to utilize wireless systems; however, we would recommend that this be a last resort. There is presented herewith Table VI which describes all of the recommended projects in this phase of the overall master plan program: TABLE VI WATER TREATMENT, PUMPING/COGENERATION AND OPERATIONS FACILITIES ESTIMATEO CONSTRUCTION COST PHASE I PHASE II PHASE II I DES CR I PT! ON (1985 DOLLARS) (1985-1990) (1990-2000) ( After 2000) Ch l orami nation 200,000 200,000 Station at T.A.P. Connection Squires Dam I -600,000 600,000 Pumping/Cogeneration Station Point "D" -600,000 600,000 Pumping/Cogeneration Station District-Wide 1,500,000 Operations Telemetry/ 750,000 250,000 500,000 Supervisory Control System TOTALS 2,900,000 950,000 1,450,000 500,000 -48- • • • • -- • • • -------• -.. • - --- --- -.. .. --.. -.. .. .. -.. -.. -.. -.. .. -.. .. .. .. .. .. ---- .. • .. .. - D. Local Water Resources Development Chapter V described the several local water resources that are available for the District to consider for development. Table VII describes the three major projects that are recommended and all three projects merit joint programming with the appropriate pub 1 i c agency. In the case of the San Luis Rey River well field, the previously mentioned Reiter engineering report identifies the need for the District and City of Carlsbad to join forces with the City of Oceanside, which has the principal water rights of the river, and put together a regional project. In the case of the Agua Hedionda Creek water supply potential, we would recommend that the District work closely with the City of Carlsbad to determine whether or not there may be a possible intertie into the emerging non-potable water supply of the City of Carlsbad to augment the reclaimed wastewater that would become available • Olivenhain Municipal Water District's Mount Israel Reservoir project is an ambitious endeavor and this report's recommendation provides funding sufficient for the construction of the necessary facilities to permit deli very of a maximum of 14 cubic feet per second of water from Mount Israel to our South Aqueduct Connection system. As the detailed planning advances for this reservoir project, the District would be encouraged to work closely with the 01 ivenhain people to determine if there is economic efficacy to actually participate in the construction of the reservoir and acquire storage capacity rights and share in capacity rights to the filtration pl ant and pipelines to insure the future emergency capacity for the District • -49- You will note that attention to the local water resources development is recommended to be in the Phase I I and Phase I I I eras inasmuch as the prime need of the entire Water District is to complete the construction of the reservoirs and Squires Dam II during the Phase I program. TABLE VII LOCAL WATER RESOURCES DEVELOPMENT DESCRIPTION San Luis Rey River Well Field -New Wells and Demineralization Plant* Agua Hedionda Creek Well Field and Stream Flow Diversion Mt. Israel Reservoir Project -Olivenhain Municipal Water District** TOTALS * Reiter Report -April, 1984 ESTIMATED CONSTRUCTION COST (1985 DOLLARS) 1,500,000 1,000,000 1,000,000 3,500,000 ** O.M.W.D. Report -April, 1984 (E.I.R.) -50- PHASE I (1985-1990) PHASE II (1990-2000) 1,500,000 1,000,000 2,500,000 PHASE III (After 2000) 1,000,000 1,000,000 I • • • • • • • • • • • ,. ,. • • ,. • ,. • • - • • • .. • • • • • • --- • • .. .. ---------------.. ---.. .. .. -.. ------ - .. ... - E. Storage and Distribution System --Reconstruction, Relocation, Replacement, and Rehabilitation Squires Dam I is the only storage facility that requires substantial work for a complete lining and the installation of a covering system in order to protect the treated -finished water that is piped directly to the distribution system of the District. The State Department of Heal th Services is becoming increasingly concerned with the continued operation of this facility and under the programs recommended in this master plan, work on Squires Dam I would commence after the District had constructed and placed into service Squires Dam I I. The basic reason for this strategy is the fact that the Di strict should have available on-line the emergency storage capability and addition- ally, the day-to-day operations of the Water District would be severely hampered in the event the availability of the regulating feature of the Squires Dam system was eliminated . The City service area of the City of Carlsbad has undergone major changes and modernization in the last ten years; however, as urban land uses continue to increase the overa 11 water service requirements, it is necessary to proceed with the water main replacement program. Pursuant to the Reiter engineering report, the first increment of work involving $1.85 million is spread out over the next 15 years, with a major portion being done in the Phase I period and a second level of work in Phase II. Additionally, there is recommended a second increment, estimated to cost $2 million, to be spread over the period of Phase II and Phase III. This second increment of work would become better identified after there has been completed an inventory of all of the existing -51- facilities and a reanalysis of the entire water service requirements, taking into account the 1 and-use forms that will ultimately be determined by the City of Carlsbad and the State of California Coastal Commission, We should point out here that not included in the master plan program and the identified overall funding is the replacement cost for existing facilities that are functioning and not subject to "enlargement" for capacity require- • • • • • • • • • • • ments. Additionally, there is no allocation recommended for the existing ■ steel tanks, the oldest of which has been in service since 1961. There follows Table VIII which lists in detail the storage and distribution system: TABLE VIII STORAGE AND DISTRIBUTION SYSTEM RECONSTRUCTION, RELOCATION, REPLACEMENT, AND REHABILITATION DESCR I PT! ON Squires Dam I - Reconstruction and Covering Existing Reservoir City Service Area Water Main Replacement Program (First Increment) City Service Area Water Main Replacement Program (Second Increment) TOTALS * Per Reiter report. ESTIMATED CONSTRUCTION COST (1985 DOLLARS) 4,600,000 1,850,000* 2,000,000 8,450,000 -52- PHASE I (1985-1990) 1,350,000 1,350,000 PHASE I I (1990-2000) 4,600,000 500,000 1,500,000 6,600,000 PHASE III (After 2000) 500,000 500,000 • • • • • • • • • • • • • • • .. • .. • .. -.. -.. - .. ----- -.. -.. .. -.. -.. -... -.. -.. -.. --.. .. .. -.. .. .. .. - F. Summary of Projects and Estimated Costs The recommended master plan has divided all of the major facilities into five categories and each section has been detailed in terms of project description, estimated project cost, and recommended time interval of construction . There is presented herewith Table IX which summarizes all of this important information: TABLE IX SUMMARY OF MAJOR FACILITIES, ESTIMATED CONSTRUCTION COSTS, AND PHASING MAJOR FACILITIES ( 1) Seasonal Storage and Terminal -Regulating - Distribution Storage (2) Major Transmission Facilities (3) Water Treatment, Pumping/Cogeneration and Operations Facilities (4) Local Water Resources Development (5) Storage and Distribution System -Reconstruction, Relocation, Replacement, anrl Rehabilitation TOTALS TOTAL COST (MILLION DOLLARS) 29.15 9.20 2.90 3.50 8.45 53.20 -53- I (1985-1990) 20.05 0.95 1.35 22.35 PHASING I I (1990-2000) 4.50 1.092 1.45 2.50 6.60 16.15 I II (After 2000} 4.60 8,108 0,50 1.00 0.50 14. 70 • -.. • .. • • • • • .. " • • • APPENDIX • .. -.. • --.. -... _, -- • -.. .. .. .. -- • - -.. -.. .. ---.. .. .. .. .. ---- BIBLIOGRAPHY Bartle Wells Associates, Costa Real Municipal Water District, Carlsbad, San Die o Count , California, $12,600,000 1984 Certificates of Partici ation, pr, Brown and Caldwell, City of Carlsbad -Sewerage System Improvement Program, November, 1976 . City of Carlsbad, Research/Analysis Group -- City of Carlsbad -Water Service Area -Land Use Information, May, 1983. (Draft) Public Facilities Management System, October 19, 1982. Engineering-Science, Inc., Preliminary Report -Water System Improvements -City .. of Carlsbad, May, 1969. .. .. .. .. • .. .. Kuhota, Jack, and Lill, Wayne, City of Carlsbad -Water System Engineering Study, January, 1966 . Mooney-Lettieri and Associates, Final Environm nmental Assessment for the Mt. Israe eservo,r 1ego - State of California -SCH #82020313 -Ol istrict, Neste, Brudin & Stone Incorporated, Sewer Master Plan -City of Carlsbad, June, 1984 . • Reiter, Glenn M., & Associates --.. .. .. .. .. .. .. .. .. Diagnostic Analysis of the City of Carlsbad and Costa Real Municipal Water District Areas, September 22, 1981 . A Report on the Evaluation of Lake Calavera and Mission Basin Well Field as Water Resources -City of Carlsbad, April 14, 1984 . San Diego County Water Authority -- Aqueduct Operation Plan and Review of 1974 Filtered Water Distribution Study, June, 1980, A Study of Potential Water Supply for San Diego County, July, 1983. Water Service Agreement -City of Carlsbad and Costa Real Municipal Water District, May 25, 1983. Woodside/Kubota and Associates, Inc. Overview for Public Non-Potable Water Sources and Master Plan for Public Non-Potable Water System -Costa Real Municipal Water District, September, 1982. for Major Carlsbad Municipal Water District, January, . torage Hydroelectric Generating Potential at Squires Dam -Costa Real Municipal Water District, March, 1983. • • • I • I • • • I • • • • • • • • • • .. .. .. • • • .. .. .. ---.. • • \ ' \ SCALE: 1"• 1,500' -----~ 0 1,500 3,000 5,000 LEGEND COSTA REAL MUNICIPAL WATER DISTRICT BOUNDARY 1111II111111111111111111111 10", 12" EX ISTING WATER SYSTEM -------~:·!..'!~-----•••••••••••••••••• 14':16",1811 20··,21 ·•,27 " -------------------- \ ' " \ ' ' . ' I \ N ' \ 30" 3 3•· 39" ............. \,, \ @ RESERVOIR <J PRESSURE REGU LATING STATION • • • • • • • • • • -:, WAT ER 8 " 10"thru 27" PROPOSED SYSTEM • RESERVOIR ◄ PRESSURE REGULATING STATION COSTA REAL MUNICIPAL WATER DISTRICT MASTER PLAN FOR PUBLIC WATER SYSTEM prepared by: WOODS IDE -KUBOTA & ASSOCIATES CONSULTING E"4G_I NEERS CARLSBAD, CALIFORNIA date:OCTOBER 1983 AND FEBRUARY 1985 \ ,-\J . -~~ri~rrj-f.ii' ~ "" ' -'i.ll'' - l\ ' oO ,, JO ,, ,. South Carlsbad 8-ch ~11, .. P11rk ;;. , ,. . -, • ' ,. \ _,, ,., \ ,, .. • ., . ' J r ' ~ .. ~, . ' ' ' !r. , . -' \ I t \, ,. • \ 1 ) • : • ■ • • ! . • • , . ! • • -------.., ' ' '. . ' ,,, &·' . . , ' ' . ' . -. . -~ . . . ' ' . 3 \ I -z I \-, \ , , I (:"' ,,. '--71 _ \ I I I I I :···--.. \ • • I : ' . . • • . - ":>, I • . ' . ' • ' I • ' ' I • • • • ' ,.. \ 0 V, A .,,. ,./ . -'--I l I -7 ----- ~ I I • ,\ \ op, ( ) r \ <:) ' LA COSTA HI _.,, R,ESER)/01 6.0 ~.G.' STORAG l • Iii" ,.,,,. ( t ',' \ \-r < , -✓> ( ,..-' / -36 17 , ✓ ,-' CJNJTAS ·- . . . • .. ✓ I I , ✓ I , ✓ , 32 --:::-\_7 .. ~c:·:.:.:. ----- ,.) \,_ '\. 33 -~1 cc# \ l ).< .. --·· I / l I •••• I ------1·· , -.-, l I I ,.r·l - 1 • I ) I ,,,--I _ __,_ I •.'\ I ·-. I '\ I --! ' I I ,, 4 • -.. ►~' 'I' ,!'1 ,, I ,,' I ,','I I ,- ' I I I I I I .- I .I _.,/I I / I ) I ' ' ' I I . ' :"'\ 1.----J· • I . , ·•:. ,f · ... ; • \ .. \ I ) L ( I I