TC 8Z4 no. 71 r LIBRARY UNTVERSITY OF CALIFORNIA DAVIS o ?^ 7/ OHKtRSiTY OF CA' VOHMU LIEr.ARY DAVIS COPY 2 STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES BULLETIN NO. 71 UPPER SANTA ANA RIVER ■\- i X DRAINAGE AREA LAND AND WATER USE SURVEY, 1957 „r.t^ EDMUND G. BROWN Governor MAY 1960 HARVEY O. BANKS Director of Water Resources UWi/ERJiTi r '\~Tt\ OCT 1 o lybO LltrinMRY STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES BULLETIN NO. 71 UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY, 1957 EDMUND G. BROWN Governor HAR\TY O. BANKS Director of Water Resources MAY 1960 LIBRARY UNIVERSITY OF CALIFORNIA PA VIS rtesy Pacific Air Industries i- ..••^ U ,2i^-'-'- ■ -*F5> ' I'i'ii.ri' • !"=?*■ r*.' ^7^- . r ".t: ^ttfa The Upper Santa Ana River Drainage Area "The . . . area is composed of the Upper Santa Ana, the San Jacinto and the Elsinore Valleys which are surrounded and sep- arated by hill and mountain land." TABLE OF CONTENTS Page LETTER OF TRANSMITTAL v^ii acknowledgm;nt iJ^ CHAPTER I IIWRODUCTION Authorization 2 Related Investigations and Reports 3 .jcope oi' Investigation and Report 5 CHAPTER II AREA OF INVESTIGATION Location and Description 7 Kydrologic Units 9 Ground Water Basins .... 10 Agricultural Deve].opment 11 Urbein and Suburban Development 12 HistoricauL Changes of liand Use 13 Water Supply 1^ Surface Water 1^ Ground Water 15 Ground Water Litigation 15 Importation of Colorado River Water 17 Sewage and Industrial Waste Disposal 19 CHAPTER III LAND USE Methods and Procedures 20 Categories of Land Use 22 Results of Land Use Survey 2k Change in Land Use 23 i Upper Santa Ana Unit 3I San Jacinto Unit • 31 Elsinore Unit 32 CHAi'Tl';i< IV WATliR Hi^QUIHEI^IiTS Ai^JD USL: Unit Values of Water U:3e , 31^ Net Water U^e U2 Comparison of Water Supply and Water Use hk Imported V/ater , 47 gHAPTER V SUI#mi^Y AI'ID CONCLUSIONS S\;mmary , 50 Conclusions 51 APPPIDIX A. Definition of Terms A-1 B. Water Service Agencies in Upper Santa Ana River Drainage Area in bem Bernardino Coimty, 1957 iiunicipal Water j^i'jtrictL; . , B-1 County water Districts .... B-1 County water VJorks Districts B-1 I-linicipal Water Works E-1 Public Utilities , B-2 Mutual V/ater Companies B-3 C. V/ater Service Agencies in Upper Santa fna River Drainage Area in Riverside County, 1957 Minicipal Water Districts . . ? C-1 County Water Districts .... C-1 Irrigation Districts C-1 ^^unicipal Water Works ...._. C-1 Page Public Utilities C-2 Commercial Water Conrpanies C-2 Mutual Water Conipajiies C-3 PHOTOGRftPHS Following Page Upper Ganta Ana Drainage Area , Frontispiece Ontario, Spring, 19^6 12 Ontario, Spring, 1955 12 Rialto, Fall, 19^6 , 30 RiaLto, Fall, 1957 30 111 TABLES Table riumber faGe 1 Gross Areas of HydroLogic Units and Subunits in Upper Santa Ana River Drainage Area 9 2 Historical Land Use Upper Santa Ana River Drainaee Area 13 3 Estimated Seasonal Deliveries of Imported Colorado River V/ater to Upper Santa Ana River Drainage Area ... l8 k Factors for Reduction of Gross /jrccs to Net VJater Service Areas 22 5 Land Use in Hydrologic Units of the Upper Santa Ana River Drainage Area in 1957 ^5 6 Land Use in Service Areas of Major Water Agencies in Upper Santa Ana River Drainage Area in 1957 27 7 Land Use in Hydrologic Units of the Upper Santa Pjia River Drainage Area in 19^8 and Comparison of Totals for 19^^8 and 1957 29 8 Land Use in the So.n Jacinto Valley in 195^ and 1957 •• • 33 9 Estimated Mean Seasonal Unit VaJ-ues of Consumptive Use of Water on Urban and Suburban Lands, Upper Santa j\na River Drainaige Area 39 10 :;,;:'im:at_-J y.can Seasonal Unit Values of Consumptive Use of V/:'.ter on Irrigated Lands, Upper Santa Ana River Drainage Area ^1 11 Estimated Levels of Net Water Use in Upper Santa Ana River Drainage Area for Conditions of Development in I9I+8 and 1957 ^^3 12 Comparison of Net Water Use and Water Supply of the Upper Santa Ana River Drainage Area 'i5 iv Plate No. PLATES (Plates 1-8 are boxind at end of bixlletin) 1 Location of Investigational Area 2 Major Water Agencies and Hydrologic Units 1957 3 Ground Water Basins h Historical Change in Land Use Upper Santa Ana River Drainage Area 5 Areas of Present Development aind Potential Urban and Irrigable Lands 6 Present Land Use 7 Change in Land Use I9U8-57 8 Location of Area of Land Use Survey of San Jacinto Valley in 195^ EDMUND G. BROWN RVEY O. BANKS Governor AiiORE'.s reply no DIRECTOR P. O. QOX 300 SACRAMENTO ;: fl20 N &TREI1T HI CAOitY G''17t ■ STATE OF CALIFORNIA SACRAMENTO August 26, i960 Honorable Edmund G. Brown, Governor Members of the Legislature of the State of California Gentlemen: I have the honor to transmit herewith Department of Water Resources Bulletin No. 71, entitled "Upper Santa Ana River Drainage Area Land and Water Use Survey, 1957". The report has been prepared as a part of the department ' s continuing program of studies of the use of the water i-esources of the State to provide the basis for planning water development, pursuant to Sections 225, 226 and 232 of the Water Code. The report treats those areas of San Bernardino, Riverside, and los Angeles Counties which drain to the Santa Ana River above Prado Dam. It presents data concerning land use and estimates of water use thereon as of 1957- It also evaluates the changes in land and water use since the last survey of the area was made in 19^4^. This informa- tion will be useful to those agencies concerned with making most effective use of existing water supplies and in development of plans for additional water supplies. The results of the 1957 survey of land and water use in the Upper Santa Ana River Drainage Area are siimmarized as follows: 1. During the period from I95O through 1957, the population of the Upper Santa Ana River Drainage Area increased from 381,500 to 5'+8,000, a growth of about 166,500, or kk percent. 2. A direct result of the population growth has been an expansion of the gross water service area of the Upper Santa Ana River Drainage Area from 255,300 acres in 191+8 to 272,200 acres in 1957, an increase of l6,900 acres, or abotit 7 percent. The gross urban and sub- urban areas increased about 28,500 acres, or approximately k3 percent, while the estimated gross irrigated area in the basin was reduced by 11,700 acres. Honorable Edmund G. Brown, Governor Members of the Legislature of the State of California - 2 August 26, I960 3. The estimated mean seasonal level of net water use in the Upper Santa Ana River Drainage Area increased from about 339^00 acre- feet in 1948 to 362,600 acre-feet in 1957, an increase of 23,200 acre- feet, or about 7 per cent. k. The net water use in the area has exceeded the approximate mean annual net local water supply from prior to I926 to the present time. During this period, the deficiency in supply has been met by over- draft on the ground water supply, and in later years, partially by Imported water. 5. The amoxmt of Colorado River water imported to the area increased from 70 acre-feet in 19kj-k8 to ^5,100 acre-feet in 1956-57- This increase was largely used to meet the increased net water use in the area, but in the Eastern Municipal Water District imported water has been used also to replace ground water extractions and to insure optimum water applications. 6. Of the total area of 1,^56,000 acres in the Upper Santa Ana River Drainage Area, there remain about 338,800 acres of habitable area upon which there is now essentially no use of applied water. As these lands are developed, requiring the use of applied water, it is estimated that the level of water requirements will increase, so that by the year 2020 it may reach a seasonal total ranging between 7ll+,000 and 1,3^^9,000 acre-feet, depending upon the degree and nature of development of facil- ities to export sewage from the area. Of this total, local resources will supply up to 266,000 acre-feet per year. Therefore, the Upper Santa Ana River Valley may expect to have a need for imported water supplies in the long-term future of as much as if 50, 000 acre-feet to 1,100,000 acre-feet per year. The ever increasing need for water in the Upper Santa Ana River Drainage Area, coupled with already deficient local water supplies, points up the need for the importation of additional water as soon as possible. Very truly yours, HARVEYjO. BANKS Director ACKEOWLEDGIvENT ValualDie assistance and data used in this investigation smd report were contributed by public and private agencies. Special mention is made of the cooperation received from the following: oan Bernardino County Agricultural Commission, and San Bernardino County Agricultviral Extension Service . The cooperation and assistance received from these agencies is gratefully acknowledged. ix ORGANIZATION STATE DEPARTIvffiNT OF WATER RESOURCES Harvey 0. Banks Director of Water Resources James F. Wright . . . Deputy Director of Water Resources Ralph M. Brody . . . Deputy Director of Water Resources William L. Berry . Chief, Division of Resources Planning Southern California District John R. Teerink District Engineer Lucian J. Meyers Principal Hydraulic Engineer This bulletin was prepared in the Water Supply and Utilization Section under the direction of Donald H. HcICillop Senior hydraulic Engineer Roger E. Stephenson Assistant Civil Engineer assisted by Barry P. Brown . . . Assistant Land and Water Use Analyst Robert L. Dahlquist Assistant Land and Water Use Analyst Robert D. Smith. . . . Jiinior Land and Water Use Analyst Claude C. Carter, Jr Engineering Aid II P. A. Towner, Chief Counsel Paul L. Barnea, Chief, Division of A::mini3tratlon Isabel C. Nessler, Coordinator of Reports CHAPTER I INTOODUCTION Southern California has experienced a tremendous gro^rth in population during the last several decades . Grovrch in the part of southern California in Riverside and San Bernardino Counties within the Upper Santa iVna Kiver Drainage Area, while not as spectacular as that of neighboring Qraxige ajid Los Angeles Counties, has still been most impressive. From 1950 to 1957 the percentage increase of population of the area exceeded the average for the 10 southern- most counties of the State, including Los Angeles County, vvi .,h this increase in population has come an increase in land use for residential purposes, amounting to more than h^ per cent since 19W. Industrial expansion during this period has also been very substantial. These increases in urban develop- ment have occurred to a large extent upon lands formerly devoted to irrigated agriculture . Both extensive agricultural development in the valley and the recent expansion of urban and suburban areas have depended heavily upon the under- lying ground \ra.ter basins for their water supplies . Presently these ground water supplies are highly developed, and in some areas overdraft conditions exist. Beginning in 1952, an increasing proportion of v/ater used in the Upper Santa Ana River Drainage Area has been obtained from the Colorado River through facilities of 'The Metropoli"can Water District of Southern California. The delivery of this imported water through surface distribution facilities has had a two-fold benefit on the ground water basins; first, it has replaced water that otherwise would have been pumped, and second, the deep percolation of excess applied water from this source has augmented the ground water supply. -1- This report contains the results of a survey of land use conducted in the Upper Santa Ana River Drainage Area during 1957, and estimates of water requirements as a measure of current levels of water use. An evaluation of the effect of Isind use changes upon the use of water is discussed. The material presented is intended for the use of responsible agencies in making most effective use of existing water supplies and in development of plans for additional water supplies. Authorization The California Legislature of 1929 enacted legislation designated iJhapter 332, Statutes of 1929, quoted in part as follows: "SECTION 1. Out of any money in the state treasury not otherwise appropriated, the sum of four hundred fifty thousand dollars,* or so much thereof as may be necessary, is hereby appropriated to be expended by the state department of public works in accordance with law in conducting work of exploration, investigation and preliminary plans in furl:herance of a coordi- nated plan for the conservation, development and utilization of the water resources of California including the Santa Ana river and its tributaries, the Mojave river and its tributaries, and al3 other wax.er resources of southern California," ^Reduced by the Governor to $390,000. Subsequent sessions of the Legislature have appropriated funds for support of the Division of Water Resources and the Department of Water Resources. Portions of these funds have been utilized for continuing investigations of the water resources of southern California and the utilization thereof in accordance with the legislative intent expressed in the foregoing statute and in ejections 225 and 226 of the State Water Code. Section 232 of the Water Code, added by Chapter 6l, Statutes of 1956 (First Extra Session), further directed the Department of Water Besources to • 2- raaJce continuing investigations to develop "information as to water v^.icn can be made available for exportation from the watersheds in which it originates without depriving those watersheds of water necessary for beneficial uses therein". This legislation specifically requested investigation of the following matters: "(a) The boundaries of the respective vratersheds of the State end the quantities of -vrater originating therein; (b) The quantities of vrater reasonably required for ultimate beneficial use in the respective watersheds; (c) The quantities of water. if anj?-, available for export from the respective watersheds; and (d) The areas which can be served by the water available for export~from each watershed ; (¥) The present uses of water wit hin each v/atershed together with the apparent claim of water right attaching thereto, excluding individual uses of water involving diversions of smeill quantities which, in the judgment of the Director of Water Resources, are insufficient in the aggregate to materially affect the quantitative determinations included in the report." (Emphasis supplied) Pursuant to the foregoing legislative directives, the Bepar'bment of Water Resources began a program of continuing surveys of land and water use in the water deficient southern California area during 1957- Sur-/eys are mtide in one of five portions of the whole area each year, so that land and water use are determined at five-year intervals. This report contains the results of the land and water use survey in the Upper Santa Ana River Drainage Area conducted in 1957. Related Investigations and Reports The California Legislature of 19k'J, by Chapter 15^^, Statutes of 19^7, directed the Department of Water Resources sind its predecessor agencies to conduct a comprehensive investigation of the water resources of the entire State of California. The investigation had for its purpose the preparation of ■3- The California Water Plan. Results of the investigation axe contained in three publications: California State Water Resources Board Bulletin No. 1, "Water Resources of California", 1951; California State Water Resources Board Bulletin No. 2, "Water Utilization and Requirements of California", June, 1955; and California State Department of Water Resources Bulletin No. 3, "The California Water Plan", May, 1957 • The investigations for Bulletin No. 2 included a survey of land use in 19'<-8 and a determination of water utiliza- tion in the Upper Santa Ana River Drainage Area for conditions of 1950. The California Legislature included in its Budget Act of 1956, Item U19.5 which provided funds for investigation of alternative routes for anueduct facilities proposed for the Feather River and Delta Diversion Projects, authorized hy the Legislature of 1951- Investigations conducted by the Depart- ment pursuant to this and subsequent appropriations, culminated in publication of Department of Water Resources' Bulletin No. "JQ, "Investigation of Alterna- tive Aqueduct Systems to Serve Southern California," dated December, 1959- The investigation included forecasts of water requirements in the Upper Santa Ana River Drainage Area to the year 2020. The following reports also contain information pertinent to land smd water use within the Upper Santa Ana River Drainage Area: CsLLifomia State Department of Public Works, Division of Engineering and Irrigation. "Santa Ana Investigation, Flood Control and Conservation". Bulletin No. 19. December, I928. California State Department of Public Works, Division of Water Resources. "Pacific Slope of Southern California". Bulletin No. 30. Unpublished. California State Department of Public Works, Division of Water Resources. "South Coastal Basin Investigation, Overdraft on Ground Water Basins". Bulletin No. 53- 19^7- -h- California State Department of Water Resources. "Santa Ana River Investigation". Bulletin No. I5. Febraary, 19by. Hed.1, William Hammond, State Engineer. ''Report of the State Engineer to the Legislature of the State of California, Session of l380" . Part IV, Appendix on Irrigation in San Bernardino and Los Angeles Counties. I88O. Hall, William Hammond, State Engineer. "Irrigation in Southern California". I888. Harding, S. T. "San Jacinto Hydrographic Investigation Report". California State Department of Public Works, Division of Vfater Rights. December, 1922. Lippincott, Joseph Barlow. "Development and Application of Water near San Bernardino, Colton and Riverside, California". Part I, V/ater Supply and Irrigation Papers of the United States Geological Survey No. 59. House Document No. 59. 5Tth Congress, 1st Session, 1902. Scope of Investigation and Report This report contains data on present land and \irater use in the Upper Santa Ana River Drainage Area. In addition, there are presented an evaluation of historical changes in land and water use and comparisons of present water use with the water requirement forecast for the year 2020 in Department of V/ater Resources Bulletin No. 78. Land use in the Upper Santa Ana River Drainage Area was determined by a detailed survey conducted during the summer of 1957° "Jse was made of results of land use and land classification studies conducted in connection with the preparation of State Water Resources Bulletin No. 2, edong with the methods and procedures used therefor. In a portion of the San Jacinto unit, the field survey consisted primarily of noting the changes in land use which occurred subsequent to a similar survey conducted in 195^ • Unit values of vrater use derived in connection with the preparation of State Water Resources Board Bulletin No. 2 v/ere reviewed in order to evaluate their applicability to 1957 conditions of development. This review included a field and office study of water use by k3 establishments, representing about 38 per cent of the acreage devoted to industrial manufac- turing and processing in the area investigated. Data obtained from studies of unit values of water use were used in conjunction with the land use survey to estimate present levels of water requirements and net water use. Additional data on loceil water supplies, importations of water from outside sources, and sewage exports were developed from material in the Hepartment's files and from information obtained from operating agencies in tne area of investigation. The text of this report makes frequent use of terms related to land. and water use which require definition in order to avoid confusion. Each tern, is defined upon the first occasion of its use in the text material, and a list of these definitions is presented in Appendix A. The results of this survey of land and water use in the Upper Santa Ana River Drainage Area are presented in four chapters following this intro- ductory chapter, entitled as follows: CHAPTER II AREA OF INVESTIGATION CH;^J?TSR III LAI© USE CHAPTER IV VJ/vTER REQUIREMFJWTS AND USE ch/pter V 3Uim;>jw and concuusions Attached to this report are eight plates ajid Appendix A, Definition of Terms; Appendix B, Directory of Water Service /igencies in Upper Santa Ana River Drainage Area of San Bernardino County; and Appendix C, Directory of V/ater Service Agencies of Upper Santa Ana River Drainage Area in Riverside County. -6- CHAPi-EK II AEEA OF Iil'»fE3TIGATI0N 'Hhe area of investigation, termed the "Upper Santa Ana River Drainage Area" coraprisec the drains^e area of the S?.nta Ana River above Prado Dam. It includes large portions of San Bernardino and Riverside Counties and smaller sections of Orjijige and Log Angeles Counties. The general location is shown on Plate 1, "Location of Investigational Area". The boundary of the area is shown in detail on Plete 2, "ftejor Water Agencies and Hydrologic Units, 1957''. Location and Description The Upper Santa Ana River Drainage Area is situated on the Pacific slope of southern California between the drainage areas of the San Gabriel and Sajita i'Cirgarita Rivers;. It embraces a total area of i>.bout 2,275 square miles, and is roughly rectangular in shape with a north-south width averaging about 45 miles and an east-west length averaging about 50 miles. The area is composed of the Upper Santa Ana, the San Jacinto, and the Elsinore Valleys, -,;hich are surrounded and separated by hills and moun- tains. 'The northern and eastern boundaries are fonned by the rugged San Gabriel, San Bernardino, and San Jacinto Motintains, which attain elevations in excess of 10,000 feet, while the western boundary is formed by the Chino Hills and the Santa Ana Mountains. A relatively low-lying series of rolling hills and drainage divides provide the southern boundary of the area and separate it from the adjacent watershed of the Santa Margarita River. '.The oanta Ana River, the principaJ. stream draining the area, rises in the San Bernardino Mountains and flows southwesterly across the Upper Santa Ana Valley to the ^nta Ana Narrows below Prado Dam, from which it crosses Orange County and discharges to the Pacific Ocean near ite\/port. iVincipal tributaries to this stream in the Upper ixanta Ana Valley are Lytle, Deer, Day, Cucaraontia, Uin jUitonio, and Chino Creeks . The San Jacinto Hiver is the principal stream './hich drains the Can Jacinto Valley. This stream, which is joined by such tributaries as Bautista, Indian, Potet, and Potrero Creeks, eventually leaves the San Jacinto Valley through Railroad Canyon whence it discharges into Elsinore Valley and Lake Elsinore. Lake Elsinore is drained by 'i'emescal Wash, which joins the Ganta aia liiver near Corona. However, discharge from Lake Elsinore has not occurred r,ince 1917- In general, the Upper Santa Ana River Drainage Area enjoys an equable climate with wajrm dry summers and mild winters. Both temperature and precipi- tation vary considerably with distance from the ocean, elevation, and topo- graphy. At Riverside, about 38 miles from the ocean and 9OO feet above sea level, -vhe ~e:f.Eons.l oemr^erature has varied between extremes of 21° F, and lib" v., averaging 63° >■ ihe meaja temperature at Squirrel Inn, situated at e,n elevation of 5i700 feet in the San Bernardino Mountains is 52° F., and extremes of 7" i • below zero and 99° F. have been recorded. Precipitation characteristically occurs in the form of rain, although a portion falls in the mountains as snow. In general, the quantity of preci- pitation incieases with elevation. The mean seasonal precipitation at an elevation of 1,030 feet, in the City of San Bernardino, for the 50-year period 1g97-19^7> was lU.ll inches, ranging from a maximum of 29.65 inches during the lyUO-iil season to a minimum of J.^Q inches during the 1933-3^ season. Squirrel .n, r,t v.a ei.tnrvtion 'j,'i'^>J i'ecL, hus v. mean seasonal rainfall of '+2.19 inches, -8- with e. recorded me-ximum rainfall of 17.61 inches during the I915-I6 season and a miniinuin recorded rainfall of 16.39 inches during the 1927-28 season. Hydrologic Units For purposes of this investigation, the Upper Santa Ana River Drainage Area vas divided into three hydrologic units, "Upper Santa .'Ina Unit", "San Jacinto Unit ', and "Elsinore Unit". Based on geological consi- derations reliited to the occurrence of ground water, the Upper Santa j'ma. Unit was further subdivided into the San Timoteo, Bunker Hill, Riverside, and Chino subunits. These hydrologic units and subunits are delineated on Plate 2. Gross areas of the units are presented in Table 1. TABLE I GROriG AREAS OF HYISiOLCGIC J-\ITS ATiD 5ANTA ANA In acres Upper Santa Ana Unit 1. San Timoteo Subunit 87,80i^ 2. Bunker Hill Subunit 330,730 3. Chino Subunit 291,710 h. Riverside Subunit 2^6, 9H Total, Upper Santa i\na Unit 967,188 Geui Jacinto Unit ^63,623 Elsinore Unit 2:?, 246 Total, Upper Santa liXis. River Drainage Area 1,^56,057 -9- Ground Vfater Basins A factor of great importance in the development of the Upper Seinta .\nv area ic the oristence of If^rpe ground water resources underlying most of the v:illey areas, ihese ground ',.'ater resources are contained in a number of major bodies of ground \.ater-bearing deposits. Extractions of ground water from these basins have provided water supplies for the extensive urban and agricultural development. ihe vater-bearing deposits of the Upper Santa Ana River Drainage Area are comprised primarily of alluvit-.l grcvel, cand, and clay sediments of the late Tertiary and Quartenary age. 'Ihese deposits have been subjected to extensive faulting, creating barriers to ground water movement and serving to subdivide the valleys into a number of separate ground water basins . Although areas of confined ground water occur, they are not extensive. The water- bearing deposits i.re replenished primarily by deep penetration of rainfall on the vaDley floor and deep percolation of runoff from the surrounding moun- tains. A li^rge ■•:;rt of the water-bearing deposits are relatively coarse- grained and the recharge potential and storage capacity are ample to permit a relatively high degree of conservation and cyclic reguii^cion of local water supplies for extractions by ground water users. iiormaJ ground '.rater movement generally follows the slope of the sur- face terrain. In the Upper Santa /Jia Unit, this movement is southwesterJ.y toirard rr.;.do l>j,m v/here *che v.-iter rises in the bed of the !./\nta /vna iHvcr and flows through the vianta Ana Iferrows Canyon int.o Orange County. ilie ground water basins in zlie Upper Santa Ana River Drainage >b:ea were dellner.ted in State Division of Water l^eoources Bulletin No. 53> "Couxh -10- Coastal Basin Investigation, Overdraft on Ground Water Basins, 19^7". The ground crater basin "boundaries presented therein are shovm on Plate 3^ entitled "Ground Water Basins". Agricultural Development 'x'he first kno\m. cgriculturt 1 development in the Upper Santa iina River Drainage Area occurred as early as l8lO in the vicinity of what is knoim as the Bunker Hill area. However, it was during the latter half of the 19th Century that significant exfansion of irrigated lands commenced. A.ccording to William H. Hall, in "Report of the titate Engineer to the Legislature of the State of California, Session l880'', irrigated crops during that period included vineyards, orchards of semi tropical and deciduous fruits, corn, potatoes, alfaJfa, and truck gardens. The most important single development of this era was the establishment of the cJtrus industry in the Riverside area about 1870, Shipments of citras fruit to eastern points began during the 1880 's. This activity comprised both dry farm operations and irrigation operations utilizing diverted surface runoff and limited ground water pumping. Commencing about I9OO, the planting of orchards, primarily citrus, became common. The greatest influence on expansion of agricultural develop- ment ^ra,s the introduction of the deep well turbine pump. V/ith this type of equipment, ground water pumping on a latrge scale began, bringing about an increase of approximately ^10 per cent in aigricultural acreage between 1888 and 1926. In 19^8 more than 183,000 neb cropped acres were devoted to irri- gated agriculture in the investigational area. The principal crops included citrus, vineyards, ^ruck crops, alfalfa, and pasture. There has been a -11- decrease of approximately six per cent in acreage devoted to agriculture during the lact nine yeara, primarily as a result of urban encroachment on agricul- tural lands . Urban and Suburb g. n Develocment The Upper Santa Ana River Drainage firea. is still primarily an agri- cultural area. However, recent population growth suggests a transformation tovard a uredominc-.tely urb':ji and suburbfji area, rhis transformation has been most apparent in the vestern uortion of the Up:;;er Santa Ana Unit adjacent to Los Angeles County and around the cities of San Bernardino and Riverside. The population of the Upper banta Ana River Drainage /.rea gre',; more or less constantly from the middle of the 19th Century until 19^*^* accompany- ing the agricultural expansion of the area, ihe v.-ar years, 19'rl through 19^ tJ^ brought a l&rge number of military personnel to bases in the area and increased the demand for both agricultural and industrial workers . After the w.?,r, many vho hcvd migrr.ted to the area remained because of the favorable cli- mate end ;iLe&-Si.nu Living conditions. lAiring the postwar years, this growth has continued as elsewhere in southern California. .>t the time of the lypo census, the combined population of i'Jiver- side and .j--.n Benv:rdino (.'ountiec v/ithin the area of invec-tigation was 3SJ-^500. btudies conducted by the JJepartment of V.'ater Kesources in connection with BuJ.lecin No. 73 indicate that by 1957 the population within the area heui in'.:re^.;ed to about 5^8. OOu, about kk per cent greater th,ri^'. i.he:..e reaide.'nts ue-i-endeLi. lor ^hc most par., on .larms, facLorie;j, ■1^- .* Spring 1946 Courtesy Spence Air Photos Courtesy Spence Air Photos Spring 1955 Ontario "A large parf of ihe new urban and suburban acreage was devoted fo residential development." and. comriiercial enterprises -i/ithin the area for their livelihoods, although some workers commuted from the Ponona area to coastal Los Angeles County. Industrial development in the Upper Santa Ana Drainage Area has been of very modest proportions, compared to that experienced in Los Angeles County. Prior to World War II, the principal industrial activity was the processing of ft^rii^ulwurtJ. pruductK. Signii'ic:cjit recent developments include the Kaiser Steel facilities near Fontana and numerous smaller manufacturing estahlishraeats in the vicinity of San Bernti'dino and Riverside, Comrflercial development has kept pace with related urban development. Historical Changes of Land Use The growth of irrigated agriculture and urban land use in the Upper Santa Ana River Drainage Area, based on surveys made in 1912, 1926, 1932, 19^2, and 19^, as well as the sur-/ey of 1957^ is presented in iable 2. '£i\BLE 2 HISTORICAL LAJSD USE UPPER SANTA ANA RIVER DRAINAGE AREA Gross Areas in Acres : Irrigated : Urban and Ye£..r : agriculture : suburban 1912 li;5,800 13,400^ 1927 201,200, 17i^,800° 182,800 19, -'^00 35,300^ 1932 19if2 i^l,800 191^8 192, 500 62,800 1957 180,300 91, i^OO Totals 159,200 220,600 210,100? 224, 600 255,300 272, 200 a. Estimated on ratio of urban to total acreage in 1926. b. Estimated for San Jacinto Unit on the basis of Land Use Surveys conducted in 1926, 1938, and 19^+8. -13- These changes are presented graphically on PJate U, entitled Histori- cal Change in Ls-nd Use Upper Santa Ana River Drainage Area". 'This plate compares increasing urban and agricultural areas with the gross area classi- fied a^ susceptible of development for urban and agricultural purposes in titate Water Rer.ources Board Bulletin No. 2. Water Supply Historically, vTater supplies for the urban and agricultural develop- ments in the Upper Santa Ana Area have been derived primarily from ground vr.ter jumping and to a limited extent fi-om storage and/or diversion of surface run- off. In recent years, increasing amounts of v/ater imported through the Colo- rado River Aqueduct have been utilized. sJuri'gce V.'ater xlie first recorded use of the surface water supplies was that made by the n:! .:i.:n i',;.therr-. -.ho diverted the flow of the Santa Ana River in Santa : tVjua :.in e-irly as x6lO. By I850 facilities had been developed for addi- •..■.••nc.i diversions from the Santa Ana River in Santa Ana Canyon and below the location of the present City of Col ton sJid from San Antonio Creek. Mormons from Salt lake City settled in the Santa Ana River Basin in the early iQ^O's, purchasing land in Upper Santa Ana Valley, founding the City cf C.v.n Bernardino and acquiring the rights to the Mill Creek flow formerly o-v.-ned by the mission fathers, 'ihose settlers also diverted water for irri- g'.'ti.;n from the Santa Ana River north of the present location of Redlands, and from Lytle Creek to the west of what is now the City of San Bernardino. iAjring this ueriod surface flow v;as developed to provide water power to operate sv.v and i'iour mills. During the l880's, several larger water supply developments v.-ere constructed to provide water for rapidly increasing citrus production. Bear Vc'.'lley A'-m v;as coar.tructed at thir. time, in addition to a number of canaJ.s, including the Gage 8,nd the Kivorside Cainals. These caxials diverted surface atrc.vjn lio;.', sup_x;,c;'ientec:. by ground water primarily from flowing veils in the Bunker Hill area, and conveyed these waters to service areas in the vicinities of the cities of ^Aiveriiide, isji Bernardino, i\edlands, and iiialto. Ground Vfeter Around the turn of the century, introduction of the deep -well turbine pump made possible extractions of ground water in large quantities. From that time, extractions of ground water increased rapidly. In Division of ..'ater Resources Bulletin No. 53 it was estimated that consumptive use of water on developed .lands in the Upper Santa Ima, River Draina-ge Area amounted to more than 300,000 acre-feet in 19^2. Considering the efficiency of application of water, it is probable that extractions of ground v;ater and diversions of sur- face waters amounted to more than ifOO,000 acre -feet during that year. In Bulletin No. 53 it was estimated that the ground water overdraft in the Upper Santa Ana Unit ^ra.s about 22,000 acre-feet for culturaJ. conditions of 19^5- iiince that time, extractions of ground water have continued to increase, pro- viding v^ater supplies for the extensive development which has occurred. Ground Water Litigation During 1951, the Orange County V/ater District initiated eui action -15- in the Superior Court of the State of California, in and for the County of San Bernardino, against the cities of Riverside, San Bernardino, Colton, and Redlands for a declaration of rights to the surface emd underground flows of the Santa ;\na Hiver System and em injunction to prevent the cities from taking water from the system in excess of their rights . In 1957, Judge Albert Ross rendered a decision enjoining the cities from taking or diverting from the natural supply of the Santa Ana River System vreiter in excess of their prescriptive rights acquired prior to the beginning of the action in October, 1951, as determined by the court, and granting them a limited period to find other sources or v/ater supply. The decision eilso re- auired the cities, during such period, zo provide exchange v/ater to Orange County for water produced by the cities in excess of that provided in the decision, or to pay the cost of purchasing a like amount from the Metropolitan water District of Southern California. On appeal, ( Orange County Water District v. City of Riverside , 173 A.C.A. 167' » the District Court of Appeal ordered the trial court to redeter- mine the cities ' prescriptive rights, excluding therefrom all production made in the exercise of riparian or overlying rights, as distinguished I'rom pre- scriptive rights, and excluding appropriated water obtained by virtue of ovmer- ship of stock in mutual vra.ter compeinies or other nonmunicipai agencies having rights to produce water from the system. The court also ruled that it should be made clear in the judgment enjoining the cities from exceeding their pre- scriptive rights that the injunction does not extend to the exercise of riparian or overlying rights or to the acquisition of additional water i'rom mutual \ater companies or other nonfflunicipeil agencies withdrawing water under -16- rights of their O'.ra. 'Ihe State Supreme Covirt denied a hearing on the appel- late court's decision^ aad i t h a s ^bee^ae-^^agrir. Although the appellate court's decision mitigated, to some extent, the limiting effect of the trial court's judgment on ground water pum::>ing by the four upstream cities, the major effect of the judgment still stands. It is expected that use of imported VTiter supplies will be accelerated in the future as a result. Inroortation of Colorado River Water Water is imported to the Upper Santa Ana River Drainage Area through facilities of the Colorado River Aqueduct of The Metropolitan Water District of Southern California. Construction of this project was commenced in 1933* and imported water in small quantities was first delivered to the area in 19*4-2. Prom 19^+3 to 1950, the volume of water imported through this facility- was small and consisted principally of service to Camp Haan and March Field. Since 1950 the annual imports have increased rapidly, so that during the 1956-57 season aji estimated ^5^100 acre-feet of vra.ter was purchased by member agencies of The Metropolitan Water District for use within the drainage area. Table 3 presents the estimated seasonal deliveries of imported Colorado River water to the Upper Santa Ana River Drainage Area. TABLE 3 ESTU^TED SF^ASOIiAL DELIVEPJEo OF IMPOPvTED COLORADO RIVI';i^ '<7ATER TO UPPER SAIWi. ;\HA RIVER DIVaii/iGE ARFA Season ending Deliveries, September ^O in acre -feet L9kl-k2 120 i+2-U3 1,960 ki-hk 2,060 kh-^j 1,290 l9i^5-^6 870 kS-hl 260 hj-kQ 70 1^8-49 380 U9-5O 1,220 1950-51 1,310 51-52 1,080 52-53 2,500 53-5^)- 10,900 5^-55 24,100 1955-56 34,700 56-57 45,100 jhe initiL-,j. construction program of The Metropolitan Water District of Southern California, completed in 1939, t^rovided tunnels, canals, and con- duits sized to convey the maximum claimed right of 1,212,000 acre-feet per ye?r, or about 1675 second -feet, but provided only one of the tvro barrels recuired for each siphon, and an initial pumping capacity of 600 cubic feet per cecond through three pumps at each of five stations. In 1957 the capacity of the fuiueduct v/as increased to 1,000 cubic feet per second through the installation of additional pumps. Construction of the remainin^^ siphons and the installation of the remaining pumps has just recently been completed. -18- Sev/age and Industrial Waste Disposal Effluent from neeurly all treatment plants in the Upper Santa Ana River Drainage Area is released to settling basins or stream channels within the area. Percolation of this effluent along with that from privately owned cesspools and septic tajiks constitutes an important source of replenishment to the underlying ground v?ater basins. At the present time the volume of sewage exported from the area is limited to a small amount conveyed f^om the vicinity of the City of Pomona to the San Gabriel Valley through a trunk of the County Sanitation Districts of Los Angeles County. This flow is estimated to be on the order of 3,000 acre -feet per year. -19- CHAPTER III LAl\rD USE The nature, location, and extent of land use within the Upper Santa Ana River Drainage Area was determined by a detailed survey conducted during the Slimmer of 1957- The results of that svirvey are presented in this chapter. Ifethods and Procedures The Department's primary objective in making this land use survey was to determine current levels of water use and to evaluate changes in water use since the previous siirvey. Therefore, the investigation employed piucedures similar to those used in the 19^ siirvey, described in Bulletin No. 2. Field mapping was expedited by the use of recent aerial photo- graphs of the entire area, supplemented by United States Geological Survey 7 1/2 minute quadrangle maps. However, in a portion of the San Jacinto Unit, the field survey of 1957 was accomplished by noting only the chemges in leind use which had occurred since a similar survey conducted in 195^- The area so mapped genereilly comprised the valley lands of the San Jacinto Unit, except for areas in the vicinity of the City of Beaumont £ind Hemet Reservoir. On areas overlying ground water basins, all categories of land were mapped, whereas in areas not so situated, only those categories requiring water service were mapped. The reason for this procedure relates to tech- niques of hydrologic analysis of water supplies in ground water basins, which is one important application of data derived from land use surveys such as the one described in this report. For areas overlying ground water basins the analysis coniprises the algebraic sum of the various items of water supply emd disposal. Thus the various items of supply such as -20- precinr'tation, svirface and subsurface inflow, and import, are estimated, together vrith the items of disposal, including surface and subsurface out- flow, cultural requirements for water, export, and change of ground v;ater storage. These items are then accumulated algebraically in order to ascertain the balance between tiie water supply and trie demand thereon. In areas not overlying grotmd water basins, the analysis becomes simpler and more direct. It is assumed that precipitation in sucn areas will either be consiimed by existing cultiire or will appear as runoff from the area. Mapping may be limited to those categories of ULie where a demand for applied water exists. The applied v/ater demand may be satisfied by diversion of surface stream flow, including that portion of the precipita- tion appearing as runoff, or by imnortation of water from other areas. In order to simplify field and office work, categories of use of streets, reads, railroads, Dov/cr Line rights of v/ay, and other easontially nonwater-using lands were not segregated at the time of the survey. In this report these lands are combined and called ''included nonvrater- service areas'". The percentsige of such lands for each of the various types of land use was evaluated on the basis of experience in other axeas in the State and checked by surveys of representative sample plots in the current study area. The percentage factors so developed are presented in Table k. The net area of the various categories of land use was determined by deducting from the gross acreage the appropriate percentage shown in Table h. ■21- T/iBLi; k FACTORS FOR REDUCTION OF GR0S3 AREAS TO NET WATER SERVICE AREAS : I'er cent deducted Land use : from grosa area Residential 25 Commercial 35 Industrial manufacturing 25 Parks, cemeteries, and golf courses 15 Farmsteads, feedlots, dairies 10 irrigated agriculture 5 Categories of Land Use For nurposes of analysis ajid presentation herein, the various types of land Ui.e were combined into several general categories. These eire similar to those used in Bulletin No. 2, except that schools, previously included in "unsegregated urban and suburban , are herein classified as commercial", and parks, golf courses, and cemeteries, classified as irrigated pasture in 19^)3, are considered ' unsegregated urban and suburban lend"' in this report. The specific types of land use included in each of these categories are as follows; watI':r service /.ke^vs Urban and Suburban Residential Gingie and multiple family houses and anartments, rest homes, trailer parks, and residentisi subdivisions luider construction at time of survey. Commercial All classes of commercial enterprises, including strip commercial and down- town cummerciaL areas, schools, and hospitals. -22- Industrial All classes of industrial land use in- volving manufacturing, processing, and packaging, but excluding extractive (oil, sand, and gravel), storage and distri- bution industries, transportation facil- ities and air fields. Unsegregated UrbsJi .... Dairies, farmsteads, livestock ranches, parks, cemeteries, and golf courses. Included Wonwater-Cervice Areas Oil fields, tank farms, vacant lots, quarries, gravel pits, warehouses and storage yards, railroads, public streets, and landing strips of air fields. Irrigated Agric\ilture Alfalfa Hay, seed, and pasture. Pasture Irrigated grasses and legumes other than alfalfa used for livestock forage. Citrus and Subtropical . . Oranges, lemons, grapefruit, tangerines, and avocados. Truck Crops Fresh vegetables of all varieties, flower seed, and nursery crops. Field Crops Lima beans, dry field beans, sugar beets, field corn and hops. Deciduous Fruits and Nuts. All varieties of deciduous fruits, olives, and nuts. Small Grain Barley, wheat, oats, and rye. Vineyards Ml varieties of grapes. Included Nonwater-Service Areas Public highways and roads, farm access roads, and other inclusions not devoted to crop production. NONWATER-SERVICE AREAS Nonirrigated Agriculture . . . All varieties of dry-farmed crops, in- cluding pasture overlying defined groiind water basins. -23- Native Vegetation Native grasses, brush and trees, in- cluding phreatophytes overlying defined ground water basins. Unclassified Bare ground, including river washes, beaches, and water surface overlying defined ground water basins. It also includes nonirrigated agriculture and native vegetation not overlying defined grovind water basins and may include minor isolated recreation areas. Results of Land Use ourvey Data derived from the 1957 land use survey are compiled in Table 5 according to hydrologic units. This table shows that in 1957 the gross acreage requiring water service within the area of investigation was 272,000 acres, of which about 181,000 acres, or 67 per cent, was devoted to irrigated agriculture. The gross v;ater service area included about k^ per cent of the lands considered susceptible of intensive water using develop- ment in Ctate V/ater Resoxirces Board Bulletin No. 2. The location and extent to which the developable area was occupied by culture requiring water service in 1957 is indicated by Plate No. 5^ "Areas of Present Development and Po- tential. Urban and Irrigable Lands", where a summary of the 1957 survey has been superimposed on a delineation of the eurea considered susceptible of development . Table 5 shows that about 216,000 acres, or nearly 80 per cent, of lands requiring water service in the area in 1957 were in the Upper Santa Ana Unit. Nearly one-half of this acreage was in the Chino Subiinit. De- tailed information concerning the pattern of land use, as determined from the survey, may be found on Plates 6A, 6b, emd 6C, "Present Land Use". -21;. fH i i UN a 1 £ ^ 5 4 o ^ 9 M I? 3 unol UN ol us fN CM irJ ir\ tMJ Jt. c\ a^ •{ «^ •! •« r\ o» ol t^ «N fH •h] lA «^ OS •3 oooo col ir> Ml oooo O O CNfN J3- UMf\*~- o o \r\t o\oo snj c^ «* •> U\J*- IF-t C PN O O O P r-(0O *^ CM ji-^oo e<^«^J UN c^ CO o O IT CV! r^ cod- e •« «k M «• jt A-^j^oo f-t CM iri iH iH r-)S oo u»\o «\ (K e* ON ItN «S CTNC^KVi O NO 5 ^ oo NO o O o & o o ON I ol iH u 3 o I o o UN ooooooooD # ONcp «>j* o so no! _ _ _ _ o o ^ - . - >^ O so no! ^ NO t~. UN -l ON CM r4 o o o i-i CM t-: ON rMl i-l II t OC UN cmJ cm OOOQOOOOl O O cr\ CM cri^ o o o o Ol o f-I CMOO 'M C-l| <^ CM CM iH ^ 'Jri t^ «* t* OV c °« <\ OS NO C>^.«, •-^ o e^ V> '»[ on] »^ CM «m1 «^. O O UN , CO i-i\o ^ Ot UN O U> vol r-1 0> O 0>l 1-1 ^ NO I C^ rH J- OOOOUNOOOt UNUNONCTN CO CNrMl J- NO^ rt JST r^ rti UN SJ K^ 5 ? I f4| UN < 1 rH[ l-< o Q on ON NO \r« Ol a. ei£ Ji- UNrfJ rM CASMB o o CO I2| O I o •M r: o « i s I I 9 •8 t3 5 i- ■>» ■9 O ■25- Since this investigation considered only lands requiring water service, no differentiation was made on these plates between developed nonwater service lands, such as nonirrigated agriculture, and undeveloped nonwater service lands such as native vegetation. A tabulation of 1957 land use, as observed within the service areas of major water agencies within the Upper Santa Ana Drainage Area, is presented in Table 6. This table shows that about 500,000 acres within the area of investigation are included in member agencies of The Metropoli- tan Water District. Of this total, about 186,000 acres, or about 37 per cent of the area, were devoted to land uses requiring water service. An additional 1^3,000 acres are included in the San Bernardino Valley Municipal Water District, not a member agency of The Metropolitan Water District. About 65,600 acres, or about U6 per cent, of the lands in the San Bernardino district were devoted to uses requiring water service. ■26- » c3 23 a P 5 r-l O d +> B a o •H .H w T) O t. I. »H +» 4 S n a 3 •H c s a « CQ >> L, « » (/) d » •• > •• •■ •* f-< l< a) •8 •H E-* g e » e u • .H ^ H 1-1 ti 5 3 i.t g ^ •ri -rt o . o Q V) o 3 e «-l o S S ■t' £ :£ +» ^ u ■•» a +> »< o O •H (. « & a « +> (« -H -H lS « o« 1 o e (. 1-1 o Q O t. +> o ■f> S o ■H c iH t. e g aii' ® .H *i »H r»= o a O a .H B »g §fe • E ■♦» •H ^ O 91 C o tx < •t^ I. u » «H ■i r-l i, gati s O -H -H +■0 a -ri o c «, * 3 <■> S •t' ^ ,« > • to o T) J «-■ o a a A o •o § a (. ^ d z o o o O Q O O A o S o o O O O o o o 8 8 8 8 ON as ITNC^ UMTMr in OO c^ so •^ CJ iH 1-1 CM e^ c^ iH lis ir\ CM c«> c^ so 8888 8 c^ *, ^ ^ • c«^ c^iH t^ K5 cr\ o o CO oooooooo oooooooo J J- 1-1 iTvso r-.t-^j3- CM C^ t-. OS iH OS so ^CM ch! 00:00 o ol o o 00 Jt\ CM O OS CM ^ o o o 01 o o o o ol o J^ t^ 1-1 cmI fs. o o so oooo^o^ja 00000 ,H r-< CM CM CM O O CO o o o o o so o o on Of o o o 01 o; o so u~\ «nn «^ § Q ■g t- 3 i a 9 I 9 9 I rH • a f-* !-< -^^ •R a a A •i* -rA fH S> a o u o • (.+>(< , a o B s OS O M t3 +> ;; g 5 o t3 3 s •e 3 M •O s § O •3 11 H» I 1 I § a. u • u v< B a. 0. ^ O o « d a &■ b 3 C -D o o o to b >! -O •§ rH ^ O rH »H rH » 2 O d B ■rt • B -H e- b a ui > •3 ^ +» o Hi •§ M g "2 .§ ^1 a o Hi I •o 4* tM o » ojffl' z b iv u)| O -HI S rH{ Cl+>| oj ?!:!: A H> = 5 4 A -21- Cheoige In Leind Use The chemges in land use in the area of investigation broiight about by recent development are indicated by the data presented in Table 7. This table lists the acreages of the various types of land use determined from the 19^ survey, together with the area totals resulting from ti^e 1957 survey. The data indicate that, during the nine-year period, the gross area requiring water service increased l6,900 acres, from 255*300 acres to 272,200 acres, or about seven per cent. The gross urban and suburban water service area increased by 28,600 acres, while the gross irrigated agricioltural water service eu:ea decreased by 11,700 acres. .28. •-i t^ o o ir\o - ih3- o\ J- ( UN fN ol u> r> Pi ON UN 50 o _ 000 *t a^ v^ •« n ir\t^ ON c^i-i r-l fH UN C^ O U-N o o 01 UN 01 \e>l o CTvirx U J CO Cj r-ll ON o i^ e^ t^ 01 col ,_( •> » H •> H "i " Ur. >-I NSl ^ CN Ol CM u> vo OS 00 ft o UN o 5 a> UN O O ti ' F o e^ CM CVI O C^ M VO CV! < iH f-ICO e^ CM iH §UNO O O UNO 0| r^ts,o cv c^cmI C^ i>» C^ CO I 00 o ON PN 11 UN O 5 UNj ^ CM VO • npnjS- •\ «\ •» vo CM PN i^ UN CO VO o CM VO PN 3! » o f C^t».UN P- o CM l O PI O PN t- ?I> ui ON ^1 PN OVPNJ- iHl CO 3-1 PN •^ i^ H «^ •■ Oi JO «H fHl fH Ol «^ I rH f-ll CM Q O O 0| O wt UN ? J- VO PJI vo vol CM ONO iH C-» cm O .0 rH I 00 "1 ■* O t) PS UN Ol UN I oT co] vo" O O UN O O O O " t5-0O P-,CO ONCO iH C^ON UNJ± ITnI •* a^ "v -\ PNUNO UN Ovja- CM ooounounqo vo UN VO ^ J- pS ir;^ 01 r> rM O P! er\ vo UN rHi O CM PNJS-. ex ^l >0 O O O UNO O -^t^PNVO ^ VO VO PNUNC->0 3- CM rH CM O 5i <;n Co- 5 <»N VO CM O PN O PN o 5 o s ^ o o « 01 o o CM VO col VO O J- CM I t^ CO| t 9 I •§ •) S s I r-j O a f-1 <-} -f +» -H •H a B I •§ 2 a o a B OS O M » S o O as 1 O o vo UN ■9 M s s •e 0000000 01 vo ONtN-t^ rtCO^I 1-1 CM UNrH ONr-l ! a o 4» g s «7 5 ^ ? g a 01 5- a- o o u u » o ^5 _ o U e. ■O^rH g, u-^nv-rH-Hf-lV I-: S "H S -H o 5 -H i-i o z ■3^2-^ o b O o SE i s CC 8 s «< «< J * -29- Much of the urban and suburban development since 19'*-8 has occurred on lands formerly devoted to citrus, subtropical, and deciduous orchards. The decrease in orchard culture amounted to about 32,200 acres, or about 30 per cent, between 19^8 and 1957 • On the other hand, there was an increase of about 12,700 acres of irrigated vineyards, primarily as a result of a change in farming practices, i.e., from a nonirrigated to an irrigated culture. Substantial increases in the acreages of irrigated alfalfa and pasture crops were also realized. A large part of the new urban and suburban acreage was devoted to residential development, which increased from 27, 300 acres in 19^8 to about U0,000 acres in 1957> or more than h^ per cent. Concurrently, land devoted to farmsteads, dairies, livestock ranches, parks, and cemeteries, tabulated as "unsegregated urban and suburban" areas, increased from about 2,700 acres ho 10,U00 acres, and water-using, industrial development increased from about 60O acres to 2,100 acres. The changes which have occurred in the uses of land in the Upper Santa Ana River Drainage Prea during the nine-year period 19^-57 are delineated on Plates 7A, 7B, and 7C, "Change in Land Use I9U8 to 1957". The color separations on this plate point up the considerable increase of ijr'.vn land at the expense of irrigated agriculture in the vicinity of cities, and the extent of interchange of irrigated and nonirrigated crops. -30- Fall 1948 Courtesy Pacific Air Industries Courtesy Spence Air Photos Fall 1957 Rialto "Much of the urban and suburban development occurred on lands formerly devoted to citrus, subtropical and deciduous orchards." Upper Santa Ana Unit The increase in urban and suburban development between 19^8 and 1957 occurred largely in the Upper Santa Ana Unit. This unit, which com- prises about 967,000 acres, experienced an increase in urban and suburban area of about 27,600 acres during the nine-year period. As a result, there was an increase in the gross area requiring water service of about 10,600 acres and a decrease in the gross irrigated agricultural area of about 17,000 acres. Land devoted to citrus, subtropical, and deciduous culture diminished from 9it,il00 acres in 19*4-8 to 63,900 acres in 1957- This represents a decrease of 30,500 acres or approximately 32 per cent. San Jacinto Unit The San Jacinto Unit, comprising ^4-63,600 acres, experienced a net increase of about 7,000 acres in gross water service between 19'4-8 and 1957- This increase occurred primarily on lands used for irrigated agricultural purposes, which totaled 39,200 acres in 19^8 and amounted to 45,500 acres in 1957, an increase of about 16 per cent. Small grain acreage, which increased about 5,200 acres, accounted for the major part of this expansion. A land use survey was conducted of a portion of the San Jacinto Unit in 195^, and a detailed tabulation of its results are presented herein. Plate 8, "Location of Area of Land Use Survey of San Jacinto Valley in 195'^-", indicates the area encompassed -31- by the survey and its relationship to the San Jacinto Unit, as defined for piirposes of the 19k8 and 1957 svirveys. The results of the 1954 sxirvey are presented in Table 8. Also presented in Table 8 is the land use derived from the 1957 survey for the comparable area. Table 8 shows that only minor changed have occurred in the land use pattern during the three-year period. The gross water service area in- creased about 1,700 acres, or between three and four percent. Increase in urban and suburban acreage amounted to aboat 500 acres, while increases in agricultural acreage amounted to about 1,200 acres. Although there was no great over-all change in irrigated agriculture, there was some change in the type of crops cixltivated. There was a decrease of 3^000 acres devoted to truck crops, an increase of 3>000 acres devoted to small grain crops and an increase of about 1,000 acres in land devoted to pasture. Elsinore Uni t The Eloinore Unit, comprising an area of about 25,300 acres, experienced only a minor modification of culture between 19^8 and 1957- The gross urban and suburban acreage increased 400 acres to a total of 1,2U0 acres in 1957- Conversely, the gross area of irrigated agricultural land diminished from 3^600 acres in 19^8 to 2,600 acres in 1957> as the acreage of alfalfa and deciduous crops decreased. ■32- TABLE 8 LAKD USE IN THE SM JACINTO V>a>LEY IN 195^ and 1957 In Acres Nature and Class of Land Use : 195^ : 1957~ WATER SERVICE AREA Urban and Subxirban Residentied Commercial Industrial Unsegregated urbsin and suburban Subtotals Included Nonwater- Service Area Gross Urban and Suburban Area Irrigated Agriculture Alfalfa Pasture Citrus and subtropical Truck crops Field crops Deciduous fruit and nuts Sma] 1 grain Vineysurds Subtotals Included Nonvrater-Service Area Gross Irrigated Agriculture GROSS WATER SERVICE AREA NONWATER-SERVICE AREA GROSS NONl'?ATER- SERVICE AREA TOTALS 2,825 2,8U0 380 450 300 510 610 720 ^,115 i^,520 1,515 1,595 5,630 6,115 8,170 8,305 2,955 3,870 3,060 3,240 13,365 10,520 225 5,670 5,330 6,750 9,865 ko 10 i40,010 41,185 2,105 2,170 ^2,115 43,355 47,7^5 49,470 31 i^,:.^ 5 312,320 362,290 362,290 -33- CHAPTER IV. WATER REQUIREMENTS AND USE Lard aree.s occupied by various types of water using development in the Upper Santa Ana River Drainage Area described in Chapter Hi, and appro- priate \mit values of water use, were employed in this investigation to estimate the 1957 level of water use. This chapter presents the estimates of water use so derived and the change in water use since previous estimates were nade, together with a discussion of the relationships between estimated levels of water use and available water supplies. The stated objective of this land and water use survey is to develop information on the present level of water use in the area investi- gated. It is considered that a detailed identification of all items of water production for use and losses resiilting therefrom could only be ac- complished by costly axid time-cons\jming investigational procedures. On the other hand, it has been found that a reasonable estimate of ciirrent levels of water use can be obtained economically by the appli- cation of approximate average unit water use factors tc surveyed areas of various types of water-using development. This latter procedure has there- fore been adopted for the leind and water use siirveys conducted by the Department of Water Resources ■ Because of the nature of these investiga- tional proced'ires, it is important that there be a clear xinderstanding of the factors employed and the terms used in reporting the results of this investigation. The terms used in this chapter are defined in detail as they occur, but the term "net water use" is discussed here for emphasis and clarification. "Net vrater use'' is defined as the water historically applied, or estimated to have been applied, to provide for all beneficial uses and for ■ Zh. those irrecoverable losses incidental to such uses with due regard to the possible re-use of that portion of the applied water v/hich is not consuraptively utilized. Therefore, as discussed previously, for investigations such as the one reported herein, net water use data represent the water "estimated to have been applied". As stated, estimates of water applied are derived by application to various areas of water using development of appropriate average values of unit v^ater use derived from observations on representative areas of water using development. These unit values of water use reflect average conditions of precipitation and normal practice of urban water distribution or irrigated agriculture. Variations of these factors from the average or normal in the specific year that a land and water use survey is conducted may result in a difference between the estimated "net water use" and the actual water used during that year. However, it is considered that the "net water use" esti- mated by the described procedures represents the current level of water use in the surveyed area and provides a sound estimate of water use for pur- poses of determining the adequacy of presently available water supplies and planning of additional supplies to meet current or expected future deficiencies. Unit Values of Water Use A review was made of unit values of water use derived in State Water Resources Board Bulletin Wo. 2 in order to determine the applicability of the values to 1957 conditions of development. Detailed studies of water use in sample industrial areas were conducted to supplement other available data. The results of these studies indicated that, in general, meaji seasonal unit values of water use derived in 19^ were still applicable. A complete discussion of the techniques en^jloyed in the derivation of units of water -35- use is contained in Chapter II, State Water Resources Board Bulletin Ito. 2, and, therefore, only a general description of those procedures is set forth herein. Mean seasonal unit values of water use on urban and suburban ieinds were estimated for Bulletin No. 2 on the basis of a sampling procedure in vrhich an invento:cy was made of measured water deliveries to sarrrole areas representative of each category of land use . In the case of residential and comraercial areas, sample areas consisting of single blocks wholly de- voted to one type of land use were chosen. Unit values of water use were computed by deducting from the amount of water delivered to the sample area an a?..lowance for applied water, v/hich is disposed of as sewage and returns to the ground water body, and dividing the remainder by the net sampled area. Unit values of consimptive use of applied water for each of the irrigated crop classes employed in V/ater Resources Board Bulletin No. 2, estimated by a modification of a method developed by Ilarry F.Blaney and Wayne 0. Criddle, of the United States Department of Agriculture, were used . As indicated in Chapter I, a special study v/as made of vrater use by industry for the DVjrposes of the study reported herein. A total of 43 establishments, representing 3<^ per cent of the land areas devoted to manufacturing and processing activities in the Upper Canta Ana Kiver Drainage ixea., were canvassed. Industries contacted included steel mills, food processing and packing plants, power generation plants, metal fabri- cation and assembly plants, building materials plants, and electronic plants . For the most part, this survey consisted of interviewing repre- sentatives of the various industries and obtaining data on historical water -36- deliveries, processes in v^hich water is employed, sources of supply, and, where possible, volumes consumed and, or disposed. The various industries were classified according to water using characteristics into (i) steel and aluminiom mills, (2) fruit amd vegetable canneries and processing plants, (3) miscellaneous industries having, or suspected of having, high water use, and (U) manufacturing, assembling, and general processing pleints. Nearly all industries in classes 1 and 3> about half in class 2, and a lesser number in class k, were contacted. As a re- svlt of the study, it was found that units of consumptive use of applied water derived for the fourth classification agreed with values presented in Bxilletin No. 2; but, for the first three classifications, new values were derived on a weighted area basis for each classification. Vfliere applicable, the data from the 19^ su3rvey were adjusted on this basis. Mean seasonal unit values of water use employed in the derivation of 1957 levels of water use in the Upper Santa Ana Drainage Area are presented in Tables 9 and 10. Table 9 contains estimated mean seasonal unit vailues of consumptive use of water on urban and suburban leinds, and Table 10 contains estimated mean seasoneil unit veilues of consumptive use of water on irrigated lands . The values shown in Tables 9 and 10 represent estimates of the average consumptive uses derived from applied water and from precipitation by the various types of culture. It should be pointed out that the use of precipitation represents an estimate for a season when rainfeill on the area would be approximately equal to the long-time mean suid that the use of applied water will actually be somewhat leirger or smaller in individual years, varying inversely with the amount of rainfall. This is pairticularly true in the instance of irrigated agriculture. On the other hand, the use of precipitation -37- by residential, coinmercial, and industrial classifications is relatively small. Therefore, variations of rainfall from year to year have a lesser effect upon the uce of applied water on these land use classes than on irrisated lands. .38- 03 ^ ^^ C^ 25 ■J •-•. pq < *-^N LUES UBUR ARE -•-' CO rq t' o tH n ^:, o Eh ;^ K M -i^ M 4J •H § J m ^ S '.^ Jh S t3 « 0) o > P, .7 S, M ^i; 1.:: K ^ rf +J CO K < a sP to W M EH (it g :o S o o r-l -tJ OJ On v£) MD ON yo o irs r- -p • • • • o CM O OJ 'H o H CVl ^ _^ Eh CVl OJ o ■p • . * . c •H 1 O •H q c3 p. o 1-3 •H -fH O -P o\ VO H CO LPv LA vo MD MD -P 05 d o ■-; o O d c,-^ O d •iH •o n^ d D 'T3 o •H (U rH -P m no LfN CO -* H J- 0\ ,-j •H .o, cd Pi ^3 — r o -( o d i-i -H OJ CVl o — 1 ■ ' < 0) ^1 ^ o O cd ^H ■P o CO CN M3 ^o On VO O ir\ c- eg o OJ .—J O rH C\J j" ^ ^d ■-"1 CM OJ !^-> ^ .. .. X a 1 •H fl Pi O £l •,-< -H c^ ^ rH x> u^ ^/^ VO VO vo '•"C O -P • U £d o o r-H d O O o d o w fH -iJ -p ^ '/) ■d ?H CJ U OJ •H fcO ?■ "^ +J 0) P Ph ■P OJ cd •rt •H O Cd ;d c l?5 c f— G -H q -P 0) O P, O +J r— i ^ o8 fH oS -H (U bO (U 4J 0) CJ -p U -H ^ 6 Cd 3 A! 'd c; Til H •H p -o -P 03 (U ^ fn a rH C -P o •H •H •H ^ B g -p s o (U C- on O VO MD l/^ VO LfN CO r4 H cn r-i r4 d d d d o o on E-: C 1 •H a •P ft O C •H -H VO t^ ON o >- Lf\ MD MD LfN MD LfN •H O -P • • « • • • • • O a> cd o o d rH o o o O o o o cS U -P i-j a, p •H r, ►— ^ MD -4- o f- ^ u> 1 1 1 1 1 •H (U • • • • • • 1 1 1 1 1 rH -P •H .. O ^ o ■P OJ H C\ t- on o V£) MD LTN MD l/N H c o • • • • • • • • •H Eh on H H en rH rA O O o o o O on U ^ ■a 1 >» ?i t •H C K Cd ft O VO t>- ON OJ t- ir\ VO MD LfN VO LfN $ •H -H • • • • • • • • • • • o ^•' o O O H o o o O o o o oj ci :i ?H -P ■i^ Oi G cG • .^ . • CO ■xi H (D U (J •H (I) VO -^ o l/N >o LfN fi r-1 -P • • 1 1 1 1 1 P4^ P-: Hi cO o H CVJ o o 1 1 1 1 1 5^ ft IS on h to to OJ to to w Q) CO w to ;J w p) o g 3 3 u X 1 -d > cd ft li -p s a c +3 -p o o O ^^ •H y T) (0 S a td M w W bO O -P u V. (d •H •P to Eh ^^ li :3 H Q) •s to 3 Q) +J fH >• u +> ■P -d O •H CO Ti r-\ CO -p •rl o c ft •H Cd ^ fi ,9 & cd CJ s •H o Cd cd •H u C ^ ■^ cd +J W 73 Q (1^ h3 EH H CO > CO -1+0- Q 5J 0) cd o •p •H G :3 Vi (1) a +i Ph (U 4J ^ C-- >- °> VO H H c- r-\ -^ Lr\ P> • • • • • g 00 00 oJ oJ oJ oJ rH OJ OJ •H G o ft -p •H -H C^ t^ c- OJ LfN a -P • • • • • •H 0) a H r-l H H rH rH O U -P K! a, ■p 1^ •H G .13 .. .. c Ti - ON • -^ -4- • t^ J- • OJ , •-■ c3 oj » k3 ft •H -H m OJ (>-> H as ON ON on l/N W U -P ' • • • • • • • G « CO rH H H H d H H ^j;^ U -P ;3 -P G • • •• 3J 0:1 ^ •H 0) 0) H 4J -^ ITS M3 ir\ OJ OJ t^ OJ rH ft ft ca • • 1 £' ft ts OJ OJ rH H H H H H 1 t3 "^ 10 -P CO (U ?» Ti Ch -1 C cd O D CQ 2 § 01 G § TJ S^ 3 § •H i ■d § td (U tiD H ^ CQ IfH >H 3 en H •P ^ 13 TZi g ^ Id r-i (U >> 0) -P •H rH r-i 0) 0) CO -Ul- Net V/ater Use The level of net water use in the Upper Santa Ana River Drainage Area under 1957 conditions of development and under normal precipitation con- ditions is estimated in this section. As previously indicated, net water use was estimated by applying mean seasonal unit values of consumptive use to the net areas of each type of land use . In water service areas overlying, or tributary, to free ground water basins it was assumed that all applied water in excess of consximptive use requirements, except the portions of sewage and industrial waste exported from the area, returns to ground water storsige and is available for re-use. The net water use for these areas was, therefore, estimated to be the sum of the consumptive use of applied water ajnd se^-zage export. In v/ater service areas overlying, or tributary, to confined ground water basins, as in portions of Blinker Hill Basin and the western peirt of the San Jacinto Basin, it was assumed that applied water in excess of con- suinptive use vrould retjjrn to ground v/ater storage in downstream lonconfined basins vrithin the hydrologic unit. Therefore, net water use for these areas was computed in the same manner as that for free ground water areas. The estimated level of mean seasonal net water use in hydrologic units of the Upper Ganta Ana River Drainage Area for conditions of 1957 is presented in Table 11. For comparative purposes, values estimated for condi- tions of 19^ axe also presented. As indicated previously the unit values used to derive the net water use represent the optimum needs of the various types of water using developments for average conditions of rainfall and climate. Tb.e actual net water use for the specific years studies may have differed from the estimated values derived herein because of vsiriations from the meaja in precipitation, but the estimates presented show general level ■k2. of water use. Rainfall on the floor of the Upper Santa Ana River Valley during the seasons of 19^+0 and 1957 amounted to 72 per cent and 75 per cent of the 50-year meaji precipitation for this area. Therefore, the estimates of levels of net water use shown in Table IJ are probably on the low side as compared to actual water use, and the difference between estimates for the two years sho-vm represents a good estimate of the increase in water use, albeit slightly on the low side. TABLE 11 ESTIMATED LEVELS OF NET WATER USE IN UPPER SANTA ANA RB^ER DRAINAGE AREA FOR CONDITIONS OF DEVELOPMENT IN 19^ and 1957 Quantity in Acre-F^et 19hti 1957 Difference UPPER SANTA ANA UNIT Irrigated lands Urban - Suburbam Areas 218,500 46,i^OO 195,300 83,000 -23,200 36,600 Totals 264,900 278, 300 13,^+00 SAN JACINTO UNIT Irrigated Lands Urban - Suburban Areas Totals ELSINORE UNIT 62, 300 6,000 68,300 71,200 8,000 79, 200 8,900 2,000 10,900 Irrigated lands Urban - Suburban Areas 5,600 600 3,800 1,300 -1,800 700 Totals 6,200 5,100 -1,100 TOTAJL INVESTIGATIONAL AREA Irrigated T^nds Urban - Suburban Areas 286,400 53,000 270, 300 92,300 -16,100 39,300 Grand Totals 339,400 362,600 23,200 .43- Data presented in Table 11 indicate that changes in net water use generally reflect the changes in land use presented in Chapter III. There was an increase in estimated seasonal net water use of about 23,000 acre- feet between 19^8 and 1957 with increases in the Upper Santa Ana and San Jacinto Units ajid a decrease in the Elsinore Unit. The use of water for vrbsji and suburban purposes increased in all units, peirticularly for resi- dential purposes in the Upper Santa Ana Unit. There was an indicated de- crease of net water use on irrigated lainds in both the Upper Santa Ana and Elsinore Ifiits as use on citrus and deciduous acreage was decreased sub- stantially. Comparison of Water Supply and Water Use To indicate the relationship between requirements for water and the local and imported water supplies of the Upper Santa Ana Drainage Area, the approximate mean annual net local supply was estimated. The derived value of 266,000 acre-feet was determined from studies made in connection with State Water Resources Board Bulletin No. 2, Department of V7ater Resources Collet in No. 15, ajid State Division of Water Resources Bulletin No. 53. The value was derived by subtracting from the sum of the estimated requirements for water during the 19^^- ^5 season in the Upper Santa Ana Unit, and the 19^7-^ season in the San Jacinto and Elsinore Units, that part of the require- ment which was satisfied by the estimated import and overdraft. It should be pointed out chat the foregoing estimate of local water supplies reflects mean hydrologic conditions for the long-time mean prior to the 19^^-^5 season and does not reflect the possible lowering effect of the extended drought condition which has continued in the investigated area since that time. .kk- The net water use determined from land use surveys conducted in the Upper Sarita ioia River Drainage Area beginning with 1912, together \rith the excess thereof over the mean annual net local supply and the historical import for each survey year, is given in Table 12. Mso included in Table 12 is the forecast water requirement for the year 2020 for the investigated area as derived from studies for Bulletin No. 78, assuming the export of sewage equal to the present value of about 3,000 acre-feet. The historical imports shown in Table 12 do not include water imported to the Upper Santa Ana Unit from adjacent ground water basins in Los /uigeles County. Review of data in the files of the Department of Water Resources indicates that the latter imports are small in magnitude when compared to supplies imported through facilities of The Metropolitan V/ater District subsequent to the 1953-5^ water year. TABLE 12 COMPARISON OF KET WATER USE PM) WATER SUPPLY OF THE UPPER SAETA AHA RIVER DRAINAGE AREA In Acre-Fset Date of survey Approximate mean*: Excess of water use Historical annual net local : over mean annua], net : imports from water suppJ.y : local v/ater supply : iJolo rado River 1912 211,000 266,000 1926 305,800 266,000 1932 235,ii00 266,000 19i^2 305,100 266,000 l9kQ 339,^0 266,000 1957 362, 600 266,000 Estimated 39,800 19,400 39,100 73,^00 70 96; 600 45,000 2020 714,000 266,000 448,000 * Derived from previous investigations of the Division of Water Resources. I .45- The data presented in Table 12 indicate that sometime during the period between 1912 and 1926, the net water use in the Upper oanta /ina River )rai.nage '-jrea betjan to exceed the combi.nation of the approximate mean annual net local water supply and the imported supply, and that this condition ap- pears to ixave continued to the present time. The deficiency in local supplies has been met by overdraft of the ground water basins and, in recent years, partially by imported water. Further discussion of vrater imports is con- tained in a later section of this report. By the year 2020, the estimated total seasonal water requirement for the Upper Canta Ana River Drainage /\rea, as derived from studies for Bulletin No. 78, couLd be about 71^,000 ecre-feet. Of this requirement, approximately 4U3,000 acre-feet must be derived by importing supplies from outside the area of investigation. The increase in water requirements be- tween the pret;ent and the year P.Q?.0 is anticipated to be the result of development and consequent water service to nearly all of the some 338,800 acres curreniily not receiving water service. In the development of estimates of future requirements for water, particular iy i'or urban areas, tiie value of the requirement derived can fluctuate very substantially, depending upon the assumptions made, parti- cularly witJ: rcsoect to the disposition of sewage. As noted, the estimated requirement for the year 2020 presented above was derived on the basis that no additionaJ. facilities will be constructed to export sewage from the in- vest\gational area. A similar estimate derived from studies for Bulletin No. 78 for tiie year 2020, based upon the assumption that the entire urban area would be sewered and that disposal would be in an ocean outfall, indi- cated that the level of water use might be as much as 1,350,000 acre-feet. I^cperience has Indicated that as areas approach a higii degree of urbanization. .)^6- I asthetic conditions force the disposal of sewage to the oceem. It is recognized that the collection auid central disposal of sewage is required in memy areas to avoid public health problems, and that the export of a certain amount of sewage, together with noxious industrial wastes, is necessary in order to maintain salt balance in grovind water bodies. The derivation of the volume of such waste that is required to meet ssLLt balance is beyond the scope of this investigation. How- ever, the foregoing estimates of future water requirements illustrate the extent to which the development of facilities for ocean disposal of sewage can affect water needs. It is, therefore, indicated that any such estimates may be subject to considerable modification, depending upon the sewerage system developed for the drainage area. Regardless of the degree of development of facilities for ocean dis- posal of sewage in the Upper Seuita Ana Drainage Area, estimates presented above indicate that a large increase in the volume of water imported to the area will be required to meet forecast demands. In view of the increased quantity of such water irtiich will be required in other areas of southern CeLLifornia under forecast conditions, it is apparent that this area, in conjunction with the other areas, has a great interest in the early importation of water frcnn northern California. Iinported Water Data presented in Table 12 indicate that in 1948, deliveries of imported Colorado River water to the Upper Santa Ana River Drainage Area were only about 70 acre-feet. However, by the year 1957> deliveries of such water had increased to about ^5,000 acre-feet. The quantities of imported water delivered to the area in 1957 eo-e listed following: -k7- Acre-feet Upper Santa Ana Unit Chino Basin M.W.D. Western M.W.D. Pomona Valley M.W.D. Caunp Haaji TOTAL Saji Jacinto Unit Eastern M.W.D. Elsinore Unit GRAND TOTAL 7,200 4,900 1,700 1.200 15,000 30,000 ^+5,000 It will be noted that deliveries of imported water in the investi- gated area increased from essentially nothing in 19^8 to a level of 45,000 acre -feet in 1957^ as compared to an estimated increase of net water use of 23,000 acre -feet over the same period. In the Upper Santa Ana Unit, the voliome of Colorado River water imported increased approximately 15,000 acre- feet between 19^8 and 1957^ but it is indicated in Table 11 that the increased net water use was approximately 13,400 acre-feet. Thus, it appears that the increase in the volume of water imported from the Colorado River into the Upper Santa Ana Unit, as a v;hole, essentially kept pace with increased water use. Kov/ever, it should be recognized that none of this imported water was utilized in the Saix Bernardino Valley Municipal Water District, where a large part of the gro\rth occurred. As indicated in the tabulation, about two-thirds of the imported water delivered in 1957 v/ent to the Eastern Municipal Water District. Based upon data obtained from that District, it was found that on the order of one- third of the volume imported to that District during the 1957 season -hS- vms used in lieu of extractions from ground water supplies. The balance of the import to that District was used to meet increased net water use, and to satisfy optimum requirements in portions of the District v/here, prior to the importation of Colorado River water, irrigation applications were reportedly less than optimum during years of subnormal water supply. -49- CHAPTER V. SUIMIRY AITO CONCLUSIONS SiAiranary 1!hti results of the 1957 survey of land and water use in the Upper SviTito, .'nc- U'ver Drainage Area are summarized as f ollov/s : 1. Duri'if^ the period from 1950 through 1957? the population of the Up:pcr Stmta Ana River Drainage Area increased from 3Ql;500 to 5^^000, a gro\rbh of about 166,500, or 't-^ per cent. 2. A direct result of the population grovrth has been an expansion 0.T che gro?s water service area of the Upper Santa Ana River Drainage Area fro'r^. 255,300 c-.-res in 19^^0 to 272,200 acres in 1957, cdi increase of l6,900 acres, or about 7 per cent. The gross urban and suburban areas increased about 28,500 acres, or approximately ^5 per cent, while the estimated gross x::'i'i.!j.c.toC. r,:;ca in the basin was reduced by 11,700 acres. 3. The e';tinc',tod mean seasonal level of net water use in the i]r^•Jev Zcr.t,.. j'vna R/.ver Drainage Area increased from about 339,^00 acre -feet in 19^i<3 to 362,600 Hcro-feet in 1957, an increase of 23,200 acre-feet, or c.'.y):.t 'I oei- cciit . '1 = ;rho net water use in the investigational area has exceeded the £'/r?ro;'.iur,te Moan annual net local water supply from prior to I926 to t'ic pre'"e}ri; tine. During this period, the deficiency in supply was met by overdraft Oi--. tiie ground water supply, and in later years, partially by imported water . 5. The seasonal volume of Colorado River water imported to the investigational area increased from 70 acre-feet in 19k'J-kQ to '4-5,100 acre- feet in 1956-57- This increase was largely used to meet the increased net v.iter use in the i.Mvcrjtijational area, but in E-Lstern Municipal Water -50- District was also used to replace groiind water extractions and to insure optimum water applications . 6. Of the total area of 1,^56,000 acres in the Upper Santa Ana River Drainage Area, there remain about 338,800 acres of habitable nonwater- service area upon which there is essentially no use of applied water. As these lands are developed to the use of applied water, it is estimated that the level of water requirements will increase, so that by the year 2020 the> may reach a seasonal total ranging between 714,000 and 1,3^9,000 acre- feet, depending upon the degree axid nature of development of facilities to export sewage from the investigational area. Of this total, local resources will supply up to 266,000 acre-feet per year. Therefore, the Upper Santa Ana River Valley may expect to have a need for imported water supplies in the long-term future of as much as 450,000 acre-feet to 1,100,000 acre- feet per year. Conclusions 1. The ever-increasing need for water in the Upper Santa Ana River Drainage Area coupled with already deficient local water supplies points up the need for participation by residents of this area in sts^tewide planning and construction of water resources developments . ■ 2. The rapidly changing character of land use, and current and anticipated need for water importations in the Upper Santa Ana River Drain- age Area emphasize the need for periodic surveys of land and water use to serve as a sound basis for water resources planning and construction. ■51- APPENDIX A DEFINITION OF TERMS k y^PPEIOIX A di<:fiiiitiow of teri^^ Annual - The 12-month period from Jemueiry 1 of a given year through December 31 of the same year, sometimes termed the "calendar year". S easonal - Any 12-month period other than the calendar year. Mean Period - A period chosen to represent conditions of water supply and climate over a long series of years . For purposes of the current investigation, the mean precipitation period embraces the 50 seasons from 1897-98 through 19^6-^7, and the mean runoff period, the 53 seasons from 189I+-95 through 1946-^7. Nfean - An arithmetical average relating to a mean period. Average - An arithmetical average relating to a period other than a mean period. Present - Land use smd water supply conditions prevailing during the 1956-57 season. Applied Water Requirement - The applied water needed to provide for all beneficial uses and for irrecoverable losses incidental to such uses. It excludes that portion of the requirement v/hich is provided by rainfall . Water Requirement - The water needed to provide for all beneficial uses and for all irrecoverable losses incidental to such uses. Water Utilization - This includes all employments of water by nature or man, whether consiimptive or nonconsuniptive, as well as irrecoverable ■ losses of water incidental to such employment, and is synonymous with ■ the term "water use". A-1 Net Wate r Use - Water historically applied, or estimated to have been applied, to provide for all beneficial uses and for those irrecoverable losses incidental to such uses, with due regard to the possible re-use of that portion of the applied water which is not consxin^jtively utilized. Consumptive Use of Water - Water consumed by vegetative growth in trans- piration and building plant tissue, and water evaporated from adjacent soil, from water surface, and from foliage. It also refers to water similarly consumed and evaporated by urban and nonvegetative types of land use. Applied Water - Water delivered to a farmer's headgate, in the case of irrigation use, or to an individual's meter in the case of urban use, or its equivalent. It does not include direct precipitation. Irrigation Efficiency - The ratio of consumptive use of applied irrigation water to the total amount of water applied, expressed as a percentage. Aquifer - A geologic formation or structure sufficiently permeable to yield water to wells or springs. Free Groiind Water - A body of groiind water not immediately overlain by impervious materials. Confined Ground Water - A body of gro\ind vrater immediately overlain by material sufficiently impervious to sever free hydraixlic connection with overlying water, and moving under pressure caused by the differ- ence in head between the intake or forebay area and the dischsirge area of the confined water body. Safe Ground Water Yield - The average ajonuaJ. net amount of water that could be beneficially extracted from a ground water basin over an indefinitely long period of yeeirs, imder a particular set of those physical conditions I A- 2 affecting supply to, and disposal from, the ground water basin, without causing a net lowering of ground water levels dtiring the period. Ground Water Overdraft - The rate of net extraction of water from a ground water basin in excess of safe ground water yield. A- 3 » i APPENDIX B WATER SERVICE AGENCIES IN UPPER SANTA MA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY^ 1957 I WATER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN SAI\I BERNARDINO COUNTY, 1957 Name an d address of agency Municipal 'wa ter District s Chino Basin iMunicipal Water District P. 0. Box 697> Cucamonga San Bernardino Valley Municipal Water District 384 - Uth Street, Ssn Bernardino County Water Distr icts Bioomington County Water District 10391 Santa /Jia Avenue, Bioomington I Crest Forest County Water District P. 0. Box 198, Crestline P Crestline Village County Water District P. 0. Box 217, Crestline Ntonte Vista County Water District 10575 Central Avenue, Ontario Cou nty Water Works Pi s tri c t s Sen Bernardino County Waterworks District, No. 3 Route 3, Box 7^3 A, Chino Muni cipal Wat er Works City of Giiino Central and "D" Streets, Chino City of Colton li+2 East '^I" Street, Colton City of Ontario City Hall, Ontario On ty of Redlands, Water Department Vine and Cajon Streets, Redland;; Area Number irrigated, in acres of services (Sells at wholesale) (Sells at wholesale) 10 700 80 30 250 1,^75 U,095 IQlf 2,825 5,227 13,512 8,900 B-1 WATEl^ SERVICE AGENCIES IN UPPER SAN'I'A ANA RIVKR DWU'NAGE i\ftEA IN SAN BEKRAJfDlNO COUNTY, I.9b7 ( continuL'C' ) Name and address of o-gency ? :uij1 c ipal^ .'^■'P-.'^^y,. W ork::; (continued) City of Hialto 227 South Rivei'side Avenue, Hialto City of Gan Bernardino, VJater Department 195 "D" Street, San Bernardino City of Upland 177 East "D'' Street, Upland PubLic Utilitiec Area Nurabci' irrigated , of m acres Gervicea ^^,279 27,022 3,7'^c Arrowhead Manor Water Company, Inc. Box ^6, Cedar Glen Arrov'heeu Utility Ccmjjany c/o Los Anf;e.!.eE 'l\irf CJ.ub S':nta Anita Pj.,rk, Arcadia. Ci-'JG oiiiore Villtise Water Company P. 0. Eo:; 8687, Crensha'.; Station, .uos Angeles 8 L'flnic an V'-.ttv Comi-'ftny IbOl Darby Sti'cct, San Bernai'Jino ;J"st Hi^hlr^nds Do)ne;:ti.c Wwter Company 'Yo'jO Church Street, East KiGhl:..nds jt^otacec Water Comp'tny T.td. P. 0. ■Hex ^J^L, Upland f''o;.;tana !.-!au.-ho: Wtaer Company P. "). ■".oy 6, San Fidro 200 i^35 1,150 208 '700 120 5ii3 180 In.ter Couiity v.'uter Coiapany 3575 Main Street, Riverside Lake Brook lUrk W-.^tor System Box li.'I, Lake ;\i'rowhead Luring lines venter Com.jiyny G'-'iP Re sod'; v^oulevai'd, Rrsedc. 81 225 B-2 WATER SERVICE AGENCIES IN UPPER SAIWA ANA RIVER DRAINAGE AREA IN r.AM BERNARDINO COUNTY, 1957 (continued) Nam e and address of agency- Public Utilities (continued) Meadowbrook Water Association Box 101, Lalce Arrowhead North Cucamonga V/ater Compariy kl^ East Princeton, Ontario Park Water Company U206 East Rosecrans Avenue, Conipton Peterson ./ater Corapaiiy 100 East Elm Street, Compton Pomona Valley V/ater Company c/ o Paul Greening, Pipeland Road, Chino Running Springs Forest Water Company General Delivery, Running Springs Sail Bernardino V/ater Utilities Corporation P. 0. Box 2033, San Bernardino San Gabriel Valley Water Company 11142 C-arvey Avenue, El Monte West Riverside Canal Company 6784 J-tission Boulevard, Riverside Yucaipa Domestic Water Company P. 0. Box 133, Yucaipa Mutual Water Companies Alta Loraa {"litual Water Company 9^+29 La Vina, Alta T,oma Anderson Mutioal V/ells Company, Inc. 27193 Atlantic, Highland Arena Mutual Water ;\ssociation. Inc. P. 0. Box 151, Ontario Area Number irrigated of in acres services 93 281 609 121+ 36h 38 722 11,870 (Carrier only) 606 130 13 250 B-3 WATER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY, 1957 (continued) Name and address of agency I^tual IJater Companies (continued) Arrow Route Water Company P. 0. Box 035, Cucamonga Arrowhead Highlands I^tual Service Company c/o Mr. D. N. Venne, 51 Sunset Drive, Crestline /\rrov;-head Manor Water Company, Inc. Box ko, Cedar Glen Arrowhead Villas fJlutual Service Company 5U2 South Broadway, Room 718, Los Angeles 13 Arroyo Verde r4itual Water Company 7512 Bonnie Street, San Bernardino Banyan Heights Water Company 237 North 2nd Avenue, Upland Base Line Gardens Mutual Water Company 2k'jkk East Baseline, San Bernardino Bear Valley Ifetual Vteter Company P. 0. Box 387, Ik West Citrus Avenue, Redlands Big Bear City Mutual Service Company 2961 East Big Bear Boulevard, Big Bear City Big Pine Tract Improvement and Water Association, Inc. 2l'4-8 North Orange Grove Avenue, Pomona Bon View f-tutual V/ater Association 320 North Campus Avenue, Ontario Brookings Pipe Line t^atuaJ. Water Company 350 East Atlantic, Highland Bryn Ma^rr Mutual VJater Company c/o Mr. Clifford Norwood, Redlands Canyon Ridge Water Corporation 221 North 1st Avenue, Upland Cardiff Farms Mutual V/ater Company 901 Cardiff Avenue, San Bernardino Area Number irrigated, of in acres services 230 185 10,000 200 378 100 200 1+35 256 120 532 887 19 B-1^ WATER SERVICE AGENCIES IN UPPER SAKTA ANA RIVER DRAINAGE AREA IN SAN BERI^ARDINO COUNTY, 1957 (continued) Name and address of agency Mutueil Water Companies (continued) Cedarpines "ark Mutual Water Company c/o Mary Diech, Crestline Century Water Corapary 115^^ Ramcna Avenue, Chino Chino District No. 1 Water Company 5993 Riverside Drive, Chino Chino Water Company 5325 Phillips Street, Chino Church Street Mutual Well Company c/o Western Fruit Growers, North 6th Street, Redlands Citizens Land and Water Company P. 0. Box 387^ 10316 Cedar Avenue, Bloomington City Creek Water Company 6^438 Palm Avenue, Highland Corvin Well Company 6966 Church Street, Highland Court Street Water Company 25063 Court Street, Loma Linda Crafton Heights Pipe Line Company P. 0. Box 387, Rediands Crafton Iviesa Mutual Water Company c/o Paul Morse, East State Street, Redlands Crafton Water Company c/o Paul Wilson, 203 1/2 Orange Street, Redlands Cra\>rford Canyon Mutual Water Company c/o Mrs. E. F. Johansen, Fontana Cucamonga .Vater Company 96U1 San Bernardino Road, Cucamonga Area Number irrigated. of in acres services 20 1,000 2,123 265 lijO 500 200 3,000 2,500 506 79 30 1,246 B-5 V/ATER 6ERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN SAN BERI\IARDINO COUNTY, 1957 (continued) Name and address of agency MutueJ. V/atei- Companies (continued) Del Rosa Mutual Water Company c;o I. D. Cushing, Z^k'^O Date Street, Del Rosa Devore I^itual Water Compeiny Route 1, Box 282 F, San Bernardino Dillson Mutual Water Compaiiy 1^4-15 Dillson Road, San Bernardino East Barton V/ater Company Route 2, Box 102, Redlands East Colton Heights I^itusLl Water Conrpany IIU07 Center Drive, Colton East Lugonia Mutual V/ater Compemy l4 West Citrus Avenue, Redlands East Redlands Water Company 103 East Olive Avenue, Redlands Etiwanda Water Company 7110 Etiwanda Avenue, Etiv/^anda Eucalyptus Street Mutual Water Con5)any c/o John F. Hodgson, Route 1, Highland Euclid Water Company 237 North 2nd Avenue, Upland Fairview Water Company 63^ Sunnyside, Redlands Fallsvale Service Company c/o R. C. Gilmore, Fallsvale Fawnskin Mutual Water Company Fawnskin For.tana Union Water Company P. 0. Box 126, Font ana Area Number irrigated. of in acres services 92 150 1,500 20 83 131 22 23 2k k23 28 125 — 356 277 B-6 WATER SERVICE AGEirciES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY, 1957 (continued) N ame and address of agency- Mutual Water Companies (continued) Foothill Irrigation Company 8035 Archibald Avenue, Cucamonga Gage Canal Company 3391 - 7th Street, Riverside Gaylord Mutueil Water Company 1303 North San Antonio Avenue, Ontario Gladysta Well and Water Company c/o Miss Monroe, South Crafton, Avenue, Kedlands Grant Well Company- Route 2, Box 25, Redlands Greenspot Mutued Water Company c/o Gordon Cram, Mentone Greenspot Mutual Well Company c/o Gordon Cram, Mentone Hellman V/ater Company C/o F. Van Fleet, Cucamonga Hermosa Water Company 7199 Ramona Avenue, Alta Loma Highlana Avenue Water Company Route 3, Box 701, Fontana Highland V.'ell Company Baseline and Church Streets, Highland Hillside 'Wells Corporation Star Route, Upland Holden I-tutual Water Company 766 Foisy Street, San Bernardino Home Mutual Water Company 1507 South Euclid Avenue, Ontario Area Number irrigated. of in acres services 10 130 -- 105 200 17 100 17 120 37 32 2I4O B-7 WATER SERVICE AGENCIES IN UPPER SANTA AHA RIVER DRAINAGE AREA IN SAN BERNARDINO COUHTY, 1957 (continued) Area Number irrigated. of in acres services Name and address of agency- Mutual Hater Companies (continued) Hope Springs Eternal Well, Inc. 2379 - 3rd Street, La Verne 70 Inter City Mutual Water Company 853 Caroline Street, Route 1, Box 906, Loma Linda 120 loamosa Water Company c/ o F. Van Fleet, Cucamonga Jewel Water Company P. 0. Box 692, Redlands Joya [Mutual Water Company 975 Hillcrest Drive, San Antonio Heights, Upland 120 Judson Mutual Water Company P. 0. Box 562, Redlands Jumal Water Company Route 1, Box 303, Colton 80 Jurupa V/ater Company 707 Main Street, Corona 5 1 Kansas Street Mutual Water Company c/o W. 0. Phare, Box hk, Redlands King Street ^^tual Well Company 915 V/est Olive, Redlands 30 Lade r a Mutual Improvement Company Box 643, Loma Linda 102 Lankershim Street Mutual Well Company c,o V/yatt Brooks, ^'IcKinley Street, San Bernardino Las Palmas Water Company Southern Citrus Association, Sixth Street, Redlands 22 35 B-8 WATER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY, 1957 (continued) Name and address of agency Mutual Water Companies (continued) T^mon Heights Water Company 221 North 1st Avenue, Upland Linda Vista Water Company Route 1, Box 153, Colton Loma Linda Mutual Service Company 327 Anderson Street, Loma Linda Ix)ngacres Mutual Water Company c/o Lester Nealy, Route 2, Fontana Lower Yucaipa Water Company P. 0. Box 201, San Timeteo Canyon, Redlands Area Number irrigated. of in acres services U70 100 17 Lugonia Park Water Corapemy 502 Alvarado Street, Redlands Lugonia V7ater Company 10 West Citrus, Redlands Lytle Creek Water and Improvement Company 102 North Riverside Avenue P. 0. Box 575, Rialto Marygold Ivlutual Water Company 9715 Alder Avenue, P. 0. Box 73 Bloomington Mascart Water Company 623 Sunnyside, Redlands Meeks and Daley Vaster Company 707 Main Street, Corona Mentone Acres Mutual Well Company P. 0. Box 201, Redlands 1,100 1,000 135 105 ko 260 160 500 11 B-9 WATER SERVICE AGENCIES IN UPPER SAWTA ANA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY, 1957 (continued) Name and address of agency Ltutual Water Companies (continued) Merryf ield Water Company Route 1, Box 266, Colton Mesa Land and Water Company 1350 North Highland, Hollywood 28 Mill Creek I«1utual Service Company c/o Mrs. Fagerstedt, Mill Creek Drive, Mentone Mission ^ftitual Water Company 110 West State Street, Redlands Mogle Water Company 370 South Central Avenue, Chine Montecito Mutual Water Company Monument Company, Highland Avenue San Bernardino Monte Vista Irrigation Company 5681 Mission Boulevard, Ontario Mountain View Park Mutual Water Company Route 1, Box 525, Chino Mountain View Water Company 221 North 1st Avenue, Upland Mt. Harrison Mutual Water Company 11 Fisher Building, Redlands Mt. Vernon Water Company 29I+5 West Highland Avenue, San Bernardino Mt. View Nhitual Water Company 866 West Harvard Place, Ontario Muscoy Mutual Water Company, No. 1 2167 Darby Street, San Bernardino Area Number irrigated. of in acres services ko 205 50 900 1|20 11^6-200 110 50 67 560 18 30 6 1,181 B-IO WATER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY, 1957 (continued) NaroG and address of agency- Mutual v/ater Companies (continued) Mutual Jell Con^jany Post Office Building, Highland Nickerson Water Company DlO Alvarado Street, Redlands North Brae Water Company 1^4-0 West Pioneer Avenue, Redlands North Fork Water Conipany 27257 Pacific, Highland North Shore Mutual Water Company 1582 Yosemite, Los Angeles h Northside V/ater Company 925 East Pennsylvania Avenue, Redlands Noyes V/ater Company c/o Kirs. J. A. Finley, Box 233, Ontario Oak Glen Water Company 1315 V/est Cypress Avenue, Redlands Old Settlers Water Company 8035 Archibald Avenue, Cucamonga Ontario V/ater Company k-YJ North Laurel, Upland Orange Park Water Company 1335 East "D" Street, Ontario Peach Park i/ater Company c/o Max Riedal, Route 3, Ontario Penn Jell Company 110 Terracina Boulevard, Redlands Pharoah-Powell Water Company Park and /aabama Street, Redlands Area irrigated, in acres 105 211*. 107 3,200 10 100 232 200 100 90 Number of services 26 B-11 V/ATER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY, 1957 (continued) Name and address of agency- M utual Water Companies (continued) Pioneer Gardens i^utual V/ater Company 1U90 Del Rosa, San Bernardino Pioneer Mutual ".vater Company c/o C. V('. Soffel, East Pioneer Street, Kedlands Pomona Home Acres Mutual VJater Company llOlU Kadota, Pomona Ramona Avenue Irrigation Company Pomona Hoi': Avenue Branch Banli, Pomona Raught Mutual Vfell Company c/o R, W. Fields, Nice Avenue, Mentone Redlands Heights V/ater Company 10 West Citnas, Redlands Redlands ./ater Company I015 '/test Bern, Redlsinds Rex :-5utual 'jnter Corrrpar.y 300 V.est 22nd Gtreet, Upland Rialto Kiutual Water Company Route 1, Box c.o, Rialto Rocky Comfort Mutual V/ater Company 1325 Mt. View Lane, Mentone ixobedale V/ater Company 11899 Rosedale Avenue, Colton San Antonio Canyon i-Iutual Jervice Compsiny 735 North 3rd Street, Upland San Antonio VJater Company 139 North Euclid Avenue, Upland San Bernardino Avenue Water Company, Inc. c/r- Hordon Donald, Redlands Area Number irrigated. of in acres services 90 118 20 135 1,000 125 110 ifO 78 5,000 110 33 51 185 B-12 WATER oERVICE AGKNCIE3 IN UPPER S/vWTA ANA KIVER DRMNAGE AREA IN SAN BERNARDINO COUWY, 1957 (continued) Area Number irrigated, of ress of agency in ox; res services t4ttual VJater Companies (continued) Sapphire Mutual V/ater Company P. 0. Box 296, Alt a Loma Schowalter Mutual V.'ater Company c/o Mrs. Robert P'ormey, Alta Loma 52 15 Section 30-Mutual V/ater Company c/o S. H. Herbert, Cherry Croft Road, Yucaipa Sealey Well Coinpany 7^95 Palm Avenue, Highland 1*5 Slover Mutual Water Company P. 0. Box 11, Colton 56 South Mountain Water Company 25 Beacon Street, Redlands South Side Mutual V.'ater Company 1U02 South Fern Avenue, Ontario 150 Southwest Water Company 16314-0 Ma-Dle Grove, La Puente 2uO Stowe Water Company, Inc. Route X, Box 25^, Redlands 125 Strawberry I^odge I4itual Water Company Twin PeaJis Sunset V/ater Conipany of Cucamonga 9552 San Bernardino Road, Cucarnonga 150 Tennessee f.^tutual Well Company 924 West Pioneer Avenue, Redlands 120 Terrace Water Company 919 West "F" Street, Colton Tioga Mutual Water Company 1965 East 6th Street, Claremont 55 233 k2b loO Treasure Island Mutual V/ater Company IO6O9 De Conte Avenue, Los /mgeles 2h 13 B-13 WATER SERVICE AGENCIES IN UPPER SAIfDA ANA RIVER DRAINAGE AREA IN SAN BERNARDINO COUNTY, I957 (continued) Name and address of agency- Mutual Water Companies (continued) Tri-City Mutual Water Company 325 Montecito Drive, San Bernardino Tvd.n Butte s Water Company 11072 Hole Avenue, Arlington Upland Foothill Water Company Box h&J, Upland Upland Water Coinpany 221 North 1st Street, Upland Valencia Drive Iviu.tuaJ. Water Company 202 ProfessionaJ. Building, San Bernardino VauLley Farms Mutual Water Company 879 South Washington Avenue, San Bernardino Valley View Park Mutual Water Company Box 91, Crestline Van Loon Mutual Water Company 816 East Baseline, San Bernardino Victoria Farms Mutual Water Company Route 2, Box ^OU, San Bernardino Vista Grande Water Company c/o American National Bank, San Bernardino Walnut Street P'oraping Plant Association IIU5 West i<-th Street, Pomona West End Consolidated Water Company 221 North 1st Street, Upland Western Heights Water Company 3233^ Avenue "D", Yucaipa Vfest Highland Well Company c/o I^s. Iva A. Farrell, Highland West Redlands Water Company Route 2, Box 120, Redlands Area irrigated, in acres 240 10 3 25 kQ 250 kh 130 150 180 10 982 750 B-lU Area Number irrigated, of in acrec services WATER SERVICE AGENCIES IW UPPER SANTA AIW\ RIVER DRAINAGE ARa\ IN SAN BflRN/iRDIHO COUN^.T, W^l (continued) Name and address of eiGency Mutual Water Companies (continued) West Riverside 350- Inch V.'ater Company 4756 Beatty, Riverside West Twin Creek V7ater Company 566 Lugo, San Bernardino Wochr Mutual Water Compajiy c/o R. L. Sargent, Nev Jersey Street, Redlands Yucaipa Triple Falls Mutual Water Company 35855 East Ivy Avenue, Yucaipa Yucaipa Valley Mutual Water Company c/o Ed Gilmore, Pendleton Road, Yucaipa 70 210 21 28 3 Yucaipa Water Company No. 1 P. 0. Box 608, Yucaipa B-15 I AI^PENDIX C VMTER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN RIVERSIDE COUNTY, 1957 ( Area Number irrigated, of in acres services 4,000 V^ATER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN RIVERSIDE COUNTY, 1957 Name and address of agency Municipal Water Districts Eastern Municipal Water District 512 West Florida Avenue, P. 0. Box 2k8, Hemet Elsinore Valley Fainicipal Water District 154 North Main Street, Elsinore Elsinore Water District Route 1, Box N20, Elsinore Lake Hemet Municipal Water District P. 0. Box 97, Hemet Western Ivlunicipal Water District of Riverside Coiinty 3614 - 9th Street, Riverside County Water Districts Idyllwild Coiinty Vfeter District P. 0. Box 397, Idyllvd.ld Pine Cove County Water District P. 0. Box 222, Idyllviid Irrigation Districts Beaumont Irrigation District Beaiunont Itoiicipal Water Vforks I City of Elsinore l/ater Department " 130 South Ifein Street, Elsinore City of Hemet 124 North Carraalita Street, Hemet City of Riverside, V/ater Department 3854 Mulberry Street, Riverside 200 1,739 325 120 322 2,200 660 258 2,420 1,080 1,355 23,113 C-1 WATER SERVICE AGENCIES IN UPPER SANTA ANA RIVER DRAINAGE AREA IN RIVR'RSIDE COUNTY, 1957 (continued) Name and address of agency Public Utilities Area Number irrigated, of in acres services Corona City Water Company 707 Main Street, Corona Good Hope V/ater Company Route 2, Box 125, Perris Highlanders Water Company P. 0. Box 289, Riverside Idyllwild Water Company P. 0. Box 9, Idyllvild Inter County V/ater Company 3575 Main Street, Riverside JujTupa Heights Water Company 8584 Limonite Avenue, Riverside La Granada Water Company kkk North Camden Drive, Beverly Hills fission Water Company 6915 Jurupa Road, Riverside Romoland '.feter Company Route 3, Box 2Q7H, Hemet Rubidoux Vista V/ater Company 18730-1 3th Street, Bloomington S\inny Slope Heights Water Company 6915 Jurupa Road, Riverside V/est Riverside Canal Compaiiy 6784 Mission Boulevard, Riverside Commercial V/ater Companies Anza Water Company 5708 Van Buren, Arlington 10 26 4,100 2k 726 880 1,307 501 217 1,597 1,107 C-2 WATER SERVICE wGENCIES IN UPPER SANF^ PHA RIVER DRAINAGE AREA IN RIVERSIDE COUOTT, 1957 (continued) Mame and address of agency Mutueil Water Companies Agua Msnsa V/ater Company Riverside Area Nimber irrigated. of in acres services 169 Alta Mesa j'\iutuai Water Company Arlington Arlington Mutual Water Comaaiy 11072 riole Avenue, Arlington Bautista Mutual Water Company Route I, Box 957, Hemet BilliCK Mjtual Water Company Route 2, Sox 272, Hemet Bonita Vista Mutual Water Company P. 0. Box 231, 2h6 West ^th Street Beaumont Box Springs Mutual, '.,'ater Company 217^0 Dracaea Avenue, Edgeraont Cajalco Mutual V/ater Company P. 0. Box 262, Corona Cherry Valley Mutual Water Company Route 1, Box i+i+l, Beaumont Clear V.'ater Company, Inc. 4001 Main Street, Riverside Coroiu Heights Water Company 1619 Buena Vista Avenue, Corona Corona Mesa 'Water Company c/o J. G. Jameson, Route 2, Corona Crestraore Heights Ivlutual Water Company Route 5, Box 263, Riverside East Riverside Water Company 3575 Main Street, Riverside 193 188 146 27 kdo 200 200 325 18 812 53 I C-3 WATER SERVICE AGENCIES IN UPPER SANTA ANA RIVEK DRAINAGE AREA IN RIVERSIDE COUNTY, I957 (continued) Name and address of agency I^utua.!. V^ater Companies (continued) Edgeraont Gfirdens i«)utuai Water Company Box 9h, oXinnyraead Eryl V/ater Company Hemet Aj^ea irrigated, in acres ll+O 560 Fij.irvievA Land and i7ater compamy Hemet Fairview I-^mrping Plant Hemet Felspar Gardens Mutual Water Company ii531 Avon Street, Kiversiae Fort Fremont Mutual Water Company 334^1 f Beaumont Grand Avenue I4utual V/ater Company Route 1, 1155 Grand Avenue, Elsinore HigbJLand I-litual Watei company Route 1, Box i+07, Hemet Home Gardens Water Company 3997 North Byron Street, Corona 310 12 502 C-4 WATER SERVICE AGENCIES IN UPPER SZ-JNTA MA RIVER DRAINAGE AREA IN RIVERSIDE COUNTY, 1957 (continued) Name and address of agency I4utual Water Companies (continued) Jewell and Clemens Pumping Plant Route 2, Box 367, Hemet Jurupa Ditch Company 4336 Riverside Drive, Riverside Jurupa V/ater Company 6915 Jurupa Avenue, Route 1, Box 36T, Riverside Kilmeny Lot Owners Water Company Route 1, Box hl6, Elsinore La Cadena Mutual Water Company 295 Stephius Street, Riverside Laguna I"Iutual Vfeter Company Route 2, Box 326, Kemet La Mirada Water Company 650 South Spring Street, Los Angeles l4 La Sierra Water Company 3575 Main Street, Riverside Little Lake Mutual Water Company c/o T. H. Eggen, Hemet Mayberry Avenue I'dutual Water Company Route 1, Box 168, Hemet Meridian Mutual Water Company Route 1, Box 836, Hemet Midway Mutueil Water Corapajiy c/o M. B. Rideout, Kemet Monte Rue Acres Mutual Water Company kk'jS Agate Street, Riverside I4oreno Mutual Irrigation Company Moreno Area Number irrigated. of m acres services 300 Qho 225 1,500 300 50 205 206 153 25 155 C-5 WATER SERVICE AGEl^ICIES IN UPPER SANTA AIMA RIVER DRAINAGE AREA IN RIVERSIDE COUNTY, I957 (continued) Name and address of eigency Mutual Water Companies (continued) I-foreno V/ater Company Moreno Mutual Water Company of Glen Avon Heights 9715 Mission Boulevard, Riverside Nuevo Water CompEuiy P. 0. Box 166, Nuevo Orange Acres Mutual Water Company 6955 Indiana Avenue, Riverside Orange Heights Water Company 616 Hamner Avenue, Norco Park Hill Mutual Water Company 1552 East Devonshire Street, Hemet Perris I'^utual Water Company Route 1, Box 15, Perris Perris Valley Irrigation Company Perris Rancho %oma Mutual V/ater Compajiy 15075 Stage Road, La Mirada Rancho Ramon V/ater Gompemy 15075 Stage Road, Box 6, La Mrada Riverside Highland Water Compeiny 3575 Main Street, Riverside Riverside Water Company 6713 Magnolia Avenue, Riverside Rivino Water Company IU60 Canal Street, Riverside Galazar V/ater Company 671B Magnolia Avenue, Riverside Area irrigated, in acres 300 615 1,000 252 35 „ 165 180 575 — 575 2,300 U91 K^h2 200 C-6 WATER SERVICE AGENCIES IN UPPER 3AIWA ANA RIVER DRAINAGE AREA IN RIVERSIDE COUNTY, 1957 (continued) Name and address of agency- Mutual Water Companies (continued) Santa /ma River Vtater Company P. 0. Box 61, Mira Loma Santa Fe 14utual U'ater Company 1091 South Santa Fe Street, Hemet Soboba Water Company Route 1, Box 538^ Hemet South Elsinore I^ituaJ. V7ater Company- Route 2, Box 500, Elsinore South Mesa V/ater Company P. 0. Box 307, Calimesa South Valley Ivlutual water Company Route 1, Box 379, Hemet Southwest Water Company 163^0 East Nfeplegrove, La Puente Sixnnymead Mutual V/ater Company P. 0. Box 21, Sunnymead Tahquitz l^^tual Water Company 207 South Howard Street, Hemet Temescal Water Company 707 Main Street, Corona Trujillo V/ater Company 6718 Magnolia Avenue, Riverside Twin Butte s Water Company 11072 Hole Avenue, Arlington Valencia Mutual Water Company Route 5, Box 16^4-, Agua >fensa Downe Riverside V/alcot Mutuail Water Company P. 0. Box 625, Hemet Area N-umber irrigated. of in acres services 200 180 1,375, 30 240 150 303 MM 3,100 15 125 235 — ,000 — 170 „ 11 C-7 Area I'lumber irrigated. of in acres service* WATER SERVICE AGENCIES IN UPPER SANTA AiTA RIVER DRAINAGE AREA IN RIVERSIDE COUNTY, 1957 (continued) Name and address of agency Mutual V/ater Companies (continued) Welles Mi-itual Water Company Route 1, Box k2k, Hemet West End Irrigation Conipany Route 1, Box 2kk, Elsinore West Riverside 3 50 -Inch Water Company S'jQk Mission Bo-ulevard, Riverside Whiffin Pumping Company Arlington Heights Wineland Vineyards Mutual Water Company Route 1, Box 193^ Mra Loma Yale I^Iutual V/ater Company c/o L. G. Brubaker, Ef)v\et ?B 135 75 150 (See Gage Canal Company] 230 13^ 176 C-8 STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHCRN CALIFORNIA DISTRICT >PER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY ATION OF INVESTIGATIONAL AREA 1957 PLATE SCALE OF MILES 40 40 80 I960 M J? X I C o PLATE 2 + HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TIMOTEO SUBUNIT 2 BUNKER HILL SUBUNIT 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST WESTERN MUNICIPAL WATER DISTRICT EASTERN MUNICIPAL WATER DISTRICT CHINO BASIN MUNICIPAL WATER DISTRICT POMONA VALLEY MUNICIPAL WATER DISTRICT SAN BERNARDINO VALLEY MUNICIPAL WATER DISTRICT THE METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA AQUEDUCT AND DISTRIBUTION SYSTEM NOTE PORTIONS OF THE DRAINAGE AREA WITHIN RIVERSIDE AND SAN BERNARDINO COUNTIES ARE INCLUDED WITHIN RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT AND SAN BERNARDINO COUNTY FLOOD CONTROL DISTRICT RESPECTIVELY STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY MAJOR WATER AGENCIES AND HYDROLOGIC UNITS 1957 SCALE OF MILES 3 3 6 9 PLATE 2 + HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TIMOTEO SUBUNIT 2 BUNKER HILL SUBUNIT 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND [H BOUNDaRY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST WESTERN MUNICIPAL WATER DISTRICT EASTERN MUNICIPAL WATER DISTRICT CHINO BASIN MUNICIPAL WATER DISTRICT POMONA VALLEY MUNICIPAL WATER DISTRICT SAN BERNARDINO VALLEY MUNICIPAL WATER DISTRICT THE METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA AQUEDUCT AND DISTRIBUTION SYSTEM NOTE PORTIONS OF THE DRAINAGE AREA WITHIN RIVERSIDE AND SAN BERNARDINO COUNTIES ARE INCLUDED WITHIN RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT AND SAN BERNARDINO COUNTY FLOOD CONTROL DISTRICT RESPECTIVELY STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY MAJOR WATER AGENCIES AND HYDROLOGIC UNITS 1957 SCALE OF MILES ^r-, "^^, ^^^4i^ VP^ — ^ ' '"''''^fe>.~ ELSINORE UNIT HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNfT 1 SAN TIMOTEO SUBUMIT 2 BUNKER HILL SUBUNIT 3 CMINO SUBUNIT 4 RIVERSIDE SU8UNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND eoUND&Rr OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNOflRT OF HTOROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST 1 WESTERN MUNICIPAL WATER DISTRICT EASTERN MUNICIPAL WATER DISTRICT ] CHINO BASIN MUNICIPAL WATER DISTRICT "1 POMONA VALLEY MUNICIPAL WATER DISTRICT the metropolitan water district of southern california aqueduct and distribution ststem NOTE PORTIONS OF THE DRAINAGE AREA WITHIN RIVERSIDE AND SAN BERNARDINO COUNTIES ARE INCLUDED WITHIN RIVERSIDE COUNTY FLOOD CONTROL AND WATER CONSERVATION DISTRICT AND SAN BERNARDINO COUNTY FLOOD CONTROL DISTRICT RESPECTIVELY STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY MAJOR WATER AGENCIES AND HYDROLOGIC UNITS 1957 SCALE OF MILES ^ PLATE 3 HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 saN TIMOTEO SUBUNIT 2 BUNKER HILL SUBUNIT 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND BOUNDARY OF INVESTIGaTI0N4L 4RE4 BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST GROUND WATER BASIN BOUNDARY BEDFORD I GROUND water BASIN NAMES WATER-BEARING SEDIMENTS STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY GROUND WATER BASINS PLATE 3 HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TIMOTEO SUBUNIT 2 BUNKER HILL SUBUNIT 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT EUSINORE UNIT LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST GROUND WATER BASIN BOUNDARY BEDFORD I GROUND water basin NAMES WATER-BEARING SEDIMENTS STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY GROUND WATER BASINS SCALE OF MILES 3 C 3 6 9 ELSINORE HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TlUOTEO SUBUNtT Z QUNKER HILL SUBUNIT 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT BOUNDARY OF INVESTIGflTlONflL AREA eoUNDARf OF HYDROLOGIC UNIT BOUNDARY OF HYOHOI-OGtC SUBUNIT BOUNDARY OF NATIONAL FOREST GROUND WATER BASIN BOUNDARY BEDFORD GROUND water basin names WATER-BE ARINC SEDIMENTS STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND W ATER USE SURVEY GROUND WATER BASINS PLATE 4 PLATE 4 HISTORICAL CHANGE IN LAND USE UPPER SANTA ANA RIVER DRAINAGE AREA DEPARTMENT OF WATER RESOURCES I960 PLATE 5 HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TIMOTEO SUBUNIT 2 BUNKER HILL SUBUNIT 3 CHINO SUBUNIT A RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND BOUNDfiRY OF INVESTIGATIONAL AREA BOUNDARY OF HYDR0L06IC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST URBAN AREA, 1957 IRRIGATED AREA, 1957 POTENTIAL URBAN AND IRRIGABLE AREA MILITARY RESERVATIONS STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY AREAS OF PRESENT DEVELOPMENT AND POTENTIAL URBAN AND IRRIGABLE LANDS SCALE OF MILES PLATE 5 HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TIMOTEO SUBUNfT 2 BUNKER MILL SUBUNIT 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYOROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST URBAN AREA. 1957 IRRIGATED AREA, 1957 POTENTIAL URBAN AND IRRIGABLE AREA MILITARY RESERVATIONS STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY AREAS OF PRESENT DEVELOPMENT AND POTENTIAL URBAN AND IRRIGABLE LANDS SCALE OF MILES HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT I SUN TIMOTEO SUBUNIT z Bunker hill subunit 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND BOUNDARY OF INVESTIGATIONAL AREA aOUNDART OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARl OF NATIONAL FOREST URBAN AREA, 1957 IRRIGATED AREA, 1957 POTENTIAL URBAN AND IRRIGABLE AREA j MILITARY RESERVATIONS ELSINORE STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY AREAS OF PRESENT DEVELOPMENT AND POTENTIAL URBAN AND IRRIGABLE LANDS SCALE OF MILES PLATE 6A LOCATION MAP \ v^'X LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST RESIDENTIAL COMMERCIAL . INDUSTRIAL -MANUFACTURING AND PROCESSING ■!XmX^yf^A INDUSTRIAL -EXTRACTIVE, STO S^y,///'/'//,-:''^ TRANSPORTATION TORAGE, AND IRRIGATED AGRICULTURE -^ + > / STATE OF CALIFORNIA ^ DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY PRESENT LAND USE 1957 PLATE 6A LOCATION MAP \ LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST RESIDENTIAL COMMERCIAL . INDUSTRIAL -MANUFACTURING AND PROCESSING W,m(gmi\ INDUSTRIAL -EXTSACTIVE, STORAGE, AND TRANSPORTATION k^'V IRRIGATED AGRICULTURE -^ + > / STATE OF CALIFORNIA ^ DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY PRESENT LAND USE 1957 SCALE OF MILES I 2 ■s 'S/ *iSi -S K- ek.^ f»''~^N_i/'/. ■V r •s /- ^^JV. Ai' / ./ / J \ '•Sf '.~-i^^ \ J _t " •■/..'-'-' s .r .F^ -0/ \l ■.*.■' ^) 1 /A |T^^ n '"^ K->^ ^ — f ,/' lOO-'f - ^-^ ^ . d t_J. \ \ aimA \ \ D I V, -^x^a P PLATE 6A > PLATE 6B f LEGEND BOUNDARY OF IN VEST IG AT tON AL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYOROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST IRRIGATED AGRICULTURE TO NON - IRRIGATED USE IRRIGATED AGRICULTURE TO URBAN CULTURE NON - IRRIGATED USE TO IRRIGATED AGRICULTURE NON-IRRIGATED USE TO URBAN CULTURE { STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY CHANGE IN LAND USE 1948 TO 1957 + SCOLE OF MILES SS"' /:•'. ^h^:. ^-^ , *'«* ^-. / -V/ ^''V saw J— ' ^^^ J / ^y/ O * BFBpjflqniuri . — ^ — i*^ 'V \-^ LOCATION MAP eouNoany of iNvESiiGftnoMAL ftPEa BOU\0ART OF HTOROLOCiC UMT eoUNDART OF HTOROLOOIC SOflUNIT eOUNDARY OF NATIONAL FOREST (BBI04TED *GBiCULTURE '0 NON -IRRIGftTEO USE IRRIOftTEO AGRICULTURE TO URBAN CULTURE NON -IRRIGATED USE TO IRRIGATED AGRICULTURE NON-IOBlGOTEO USE TO URBAF. CULTURE STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHEU^N CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY CHANGE IN LAND USE 1948 TO 1957 SCALE OF MILES PLATE 7B / Y II w \\ II \\ w II / Rl V£-P + i A. LOCATION MAP LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST IRRIGATED AGRICULTURE TO NON -IRRIGATED USE IRRIGATED AGRICULTURE TO URBAN CULTURE NON - IRRIGATED USE TO IRRIGATED AGRICULTURE NON-IRRIGATED USE TO URBAN CULTURE MILITARY RESERVATIONS STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFOFfNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY CHANGE IN LAND USE 1948 TO 1957 PLATE 7C LOCATION MAP \ L iV \ + V ) \ LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SU8UNIT BOUNDARY OF NATIONAL FOREST IRRIGATED AGRICULTURE TO NON - IRRIGATED USE IRRIGATED AGRICULTURE TO URBAN CULTURE NON - IRRIGATED USE TO IRRIGATED AGRICULTURE NON-IRRIGATED USE TO URBAN CULTURE STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY CHANGE IN LAND l/SE 1948 TO 1957 SCALE OF MILES STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY CHANGE IN LAND l/SE 1948 TO 1957 SCiLE 0*^ MILES PLATE 8 HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TIMOTEO SUBUNIT 2 BUNKER HILL SUBUNIT 3 CHINO SUBUNIT 4 RIVERSIDE SUBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND BOUNDARY OF INVESTIGATIONAL AREA BOUNDARY OF HYDROLOGIC UNIT BOUNDARY OF HYDROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST _ _ BOUNDARY OF LAND USE SURVEY OF WV"-.:''.-;'.';:-' SAN JACINTO VALLEY IN 1954 state: of CALIFORNIA DEPARTMENT OF WATER RESOURCES southern CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY LOCATION OF AREA OF LAND USE SURVEY OF SAN JACINTO VALLEY IN 1954 SCALE OF MILES 3 3 6 9 ELSINORE UNIT ^ HYDROLOGIC UNITS AND SUBUNITS OF UPPER SANTA ANA RIVER DRAINAGE AREA UPPER SANTA ANA UNIT 1 SAN TIMOTEO SUeufJIT 2 aUNKEfl HILL SUSUMT J CHIND sueutiT 4 RIVERSIDE 5UBUNIT SAN JACINTO UNIT ELSINORE UNIT LEGEND ^^B ^^K BOUNDARY OF INVESTIGATIONAL Af?EA _^.^^ BOUMDART OF MYOROLOGIC UNIT ^— ^— ^ eOUNDAflir OF HYOROLOGIC SUBUNIT BOUNDARY OF NATIONAL FOREST STATE OF CALIFORNIA DEPARTMENT OF WATER RESOURCES SOUTHERN CALIFORNIA DISTRICT UPPER SANTA ANA RIVER DRAINAGE AREA LAND AND WATER USE SURVEY LOCATION OF AREA OF LAND USE SURVEY OF SAN JACINTO VALLEY IN 1954 c THIS BOOK IS DUE ON THE LAST DATE STAMPED BELOW RENEWED BOOKS ARE SUBJECT TO IMMEDIATE RECALL SEP! 8^6^ DEC 1 6 1967 DEC 6 "tC" O0EJUH8 «" LIBRARY, UNIVERSITY OF CALIFORNIA, DAVIS Book Slip-20m-8,'61 (0162384)458 plio^on California, Dept , water resources. of '. vovA-ia. PHYSICAL SCIENCES LIBRARY Call Number: TC82U LIBRARY UNIVERSITY OF CALIFORNlX DAVIS 240500 UNIVERSITY 01- CAMi (