LIBRARY UNIVERSITY OF CALIFORNIA DAVIS THE RESOURCES AGENCY OF CALIFORNIA partment of Wa ter Resources BULLETIN No. 94-2 LAND AND WATER USE IN TRINITY RIVER HYDROGRAPHIC UNIT Preliminary Edition OCTOBER 1962 EDMUND G. BROWN WILLIAM E. WARNE Governor Stata of California Adminisfrafor The Resources Agency of California and Director Department of Water Resources state ot California THE RESOURCES AGENCY OF CALIFORNIA Department of Wa ter Resources BULLETIN No. 94-2 LAND AND WATER USE IN TRINITY RIVER HYDROGRAPHIC UNIT Preliminary Edition OCTOBER 1962 EDMUND G. BROWN WILLIAM E. WARNE Governor Adminisfrafor c. . t /- i-i The Resources Agency of Colifornia state ot California ^ ' ond Direcfor Department of Water Resources FOREWORD The State Legislature requested the Department of Water Resources to make a current inventory of the water resources and water requirements of the State In greater detail and to higher standards than has previously been done. Results of this Inven- tory will be presented In two series of reports covering (l) land and water use, and (2) water resources and water requirements. For purposes of this Inventory, the State has been divided Into major hydrographlc areas. These areas. In turn, have been subdivided Into hydrographlc units generally comprising watersheds of Individual rivers, Basic data on present water uses, together with the apparent claim of water right attached thereto, present land uses, history of land and water uses, and the classification of lands will be presented separately for each hydrographlc unit In the series of reports on land and water use. The detemilnatlon of available water resources and water requirements, based on economic development at specific Intervals of time, will be reported In the series of reports on water re- sources and water requirements, to be prepared for each of the major hydrographlc areas. This land and water use report covers the watershed of the Trinity River and Is the second of the Bulletin 9^ series. This report Is a preliminary edition. After a public hearing Is held In the Trinity River area, the final report will be prepared which will be presented to the Legislature, 111 TABLE OF CONTENTS Pa£e FOREWORD iii LETTER OF TRANSMITTAL ix STATE OF CALIFORNIA, THE RESOURCES AGENCY OF CALIFORNIA, DEPARTMENT OF WATER RESOURCES x CALIFORNIA WATER COMMISSION xi ACKNOWLEDGMENT xii CHAPTER I. INTRODUCTION 1 Organization of Report .•• 2 General Description of Area 3 Location o 3 Historical and Present Development 5 Natural Features 13 Climate o**... 16 Water Resources IS CHAPTER II. WATER USE 21 Water Rights ..... 22 Stirface Water Diversions 23 Numbering System for Surface Water Diversions ... 25 Descriptions of Surface Water Diversions 25 Records of Surface Water Diversions . ; 50 Index to Surface Water Diversions 65 Imports and Exports 65 Consumptive Use o 66 TABLE OF CONTENTS (Continued) CHAPTER III. LAND USE 77 Historical Land Use 77 Present Land Use 78 Methods and Procedures 78 Irrigated Lands 80 Naturally High Water Table Lands 93 Dry-Farmed Lands 95 Urban Lands 95 Recreational Lands 96 Native Vegetation 97 CHAPTER IV. LAND CLASSIFICATION 99 Methods and Procedures 100 Major Categories of Land Classes 103 Irrigable Lands . . „ 103 Urban Lands 105 Recreational Lands 105 Miscellaneous Lands 108 CHAPTER V. SUMMARY Ill Water Use Ill Land Use II3 Land Classification Il4 TABLES Table No . 1 Areas of Subunits in Trinity River Hydrographic Unit 4 vl TABLE OF CONTENTS (Continued) Table No . Page 2 Mean Annual Precipitation at Selected Stations in or near Trinity River Hydrographic Unit 17 3 Suinmary of Temperature Data at Selected Stations in or near Trinity River Hydrographic Unit . . l8 4 Summary of Runoff Data Trinity River near Hoopa (1931-1957) 20 5 Descriptions of Surface Water Diversions in Trinity River Hydrographic Unit 27 6 Monthly Records of Surface Water Diversions in Trinity River Hydrographic Unit, 1957. ... 53 7 Index to Surface Water Diversions in Trinity River Hydrographic Unit 68 8 Land Use in Trinity River Hydrographic Unit, 1957 79 9 Irrigated Lands in Trinity River Hydrographic Unit, 1957 82 10 Land Classification Standards 100 11 Classification of Lands in Trinity River Hydrographic Unit IO6 ILLUSTRATIONS Illustration No. 1 Gold dredge near Trinity Center 7 2 Hydraulic mining 7 3 Trinity Alps l4 4 Trinity Dam l4 5 Exterior of Chinese Joss House, Weaverville ... 19 6 Interior of Chinese Joss House, Weaverville ... 19 7 Lumber mill near Weaverville 26 8 Hoopa Valley ..... 26 9 Weaverville 52 10 Relocated Trinity Center 52 vii ILLUSTRATIONS (Continued) Illustration No, 11 Example of land use delineated on aerial photograph 8l 12 Cattle grazing 9^ 13 Hayfork Valley 94 Ih Housing development at Lewlston for Trinity River Project , 98 15 Lewlston Dam, under construction 98 16 Example of land classification delineated on aerial photograph . , 104 17 Pishing on the Trinity River 107 18 Big Slide Campground, South Pork Trinity River 107 19 Logging trucks near Hyampom IO9 20 Hyampom Valley IO9 Figure No. 1 1957 Land Use II5 2 Classification of Lands II5 APPENDIXES A STATEWIDE WATER RESOURCES AND WATER REQUIREMENTS PROGRAM A-1 B REPORTS ON RELATED INVESTIGATIONS AND OTHER REFERENCES B-1 C LEGAL CONSIDERATIONS C-1 PLATES Plate No . 1 Location of Unit 2 Land and Water Use 3 Classification of Lands vlll EDMUND G. BROWN WILLIAM E. WARNE AM E. WARNE GOVERNOR OF ADMINISTRATOR ADDPF^^ RFPIY TO ~" . • , CALIFORNIA RESOURCES AGENCY ADDRESS REPLY TO P. O. Box 388 Sacramento 2, Calif. ,-,^^,^,af CALIFORNIA RESOURCES AGENCY \ ler Resources lOTT GOLDBERG i Deputy Director I MID C. PRICE : / Director Policy lY GARDNER 3uty Director fninistrotion THE RESOURCES AGENCY OF CALIFORNIA :ED R. GOLZE ••''"«'"-' DEPARTMENT OF WATER RESOURCES 1)20 N STREET, SACRAMENTO October 4, 1962 Honorable Edmund G. Brown, Governor and Members of the Legislature of the State of California Gentlemen: I have the honor to transmit herewith preliminary report Bulletin No. 9^-2 the second of a series of reports of the Depart- ment of Water Resources which present detailed basic data relative to land and water use and apparent water rights within certain hydrographic units of the State. This report, entitled "Land and Water Use in Trinity River Hydrographic Unit," presents results of studies conducted pursuant to legislation sponsored by Senator Edwin J. Regan and codified under Section 232 of the Water Code. This series, when complete, will form an ' invaluable reference of the water resources of the State in relation to the various classes and uses of land resources. The information contained in this series of reports will provide a basis for future estimates of the amount of water which originates within each watershed, the amount which can be used beneficially within each area, and the amount of surplus or defi- ciency, if any. The data presented in this bulletin will provide a factual basis for decisions of concerned interests regarding the development and use of the water resources of the Trinity River Hydro- graphic Unit. In addition, the bulletin includes notes on the history, natural features, climate, and economy of the unit. Maps of present land use and land classification illustrate the text. All public and private agencies, local interests, and individuals who may be concerned with the information presented herein are invited to submit their comments. A public hearing will be held after due notice to receive comments which will be considered in preparing the final report . Sincerely yours. Director STATE OP CALIFORNIA THE RESOURCES AGENCY OP CALIFORNIA DEPARTMENT OP WATER RESOURCES EDMUND G. BROWN, Governor WILLIAM E. WARNE Administrator, The Resources Agency of California and Director, Department of Water Resources "^^"'^^ ^^^^^ ALFRED R. GOLZE, Chief Engineer The investigation leading to this report was conducted by the Northern Branch under the direction of John R. Teerlnk . ^ Assistant Chief Engineer o o and John M. Haley » pv,i^f« m ^u o . . Chief, Northern Branch This report was prepared by Leiand R. Illlngworth , . q,,^ , ^ Charles F. Kleine Supervising Engineer o , . . . , Senior Engineer and ?arroi/g^lva;is* ' ^^''^°'' ^^^^ and Water Use Analyst C. Laurence Linser* .' * ° l.:^\ f°n^^^^ Engineer Daryl C. McCalister . ° Assistant Civil Engineer ° Engineering Aid II Statewide aspects of the Water Resources and Water Requirements Program are coordinated under the direction of the Division of Resources Planning William L. Berry ... -n^ ^ 4 t, Meyer Kramsky ... chlVf 'q^p^^TH^. 't* JY^^J?" Engineer Carleton E Plumb ou- £' Statewide Investigations Branch ar±ei:on i,. Plumb ...... Chief, Planning Investigations Section ■0- -X- CALIFORNIA WATER COMMISSION RALPH M. BRODY, Chairman, Fresno VJILLIAM H. JhJWINGS, Vice Chairman, La Mesa JOHN W. BRYANT, Riverside JOHN P. BUNKKR, Gustine IRA J. CHRISMAN, Visalia GEORGE FLEHARTY, Fresno JOHN J. KING, Petal uma NORRIS POULSON, Los Angeles MARION R. WALKER, Ventura WILLIAM M. GARAH Executive Secretary CRORGE B. GLEASON Principal Engineer -XI- ACKNOWLEDGMENT The Department of Water Resources gratefully acknowl- edges Information contributed by the numerous water users and residents of the Trinity River Hydrographlc Unit and various agencies of the federal, state, and local governments » While most of the photographs shown In this report were taken by the Department of Water Resources, some were fur- nished by other agencies. Special thanks are given to the United States Forest Service for use of their photograph ap- pearing at the top of page 7> to the Shasta-Cascade Wonderland Association for their photographs used on the bottom of pages 7 and 107, and to the State Division of Beaches and Parks for those photographs shown on page 19. -xii- CHAPTER I. INTRODUCTION This bulletin presents basic data on land and water use in the Trinity River watershed. This watershed is designated herein as the Trinity River Hydrographic Unit. The data cover present land and water use, classification of lands, systems used to divert Trinity River and tributary surface waters, his- tories of diversions, apparent water rights pertinent to each diversion, purpose and extent of use of diversions, seasonal quantities of water diverted during 1957-58^ and an estimate of present consumptive use of water in the unit. A general descrip- tion and a brief history of the area are also Included. These basic data were gathered during the period I956-58 in compliance with Chapter 6I, Statutes of 195b, as amended by Chapter 2025, Statutes of 1959, and codified in Section 232 of the Water Code of the State of California. This legislation pro- vides for an inventory of water resources and water requirements of the State. This is the second of a series of bulletins to be prepared under this authorization. The text of Section 232, with a discussion of its history and implications, is included in this bulletin as Appendix A. These data will provide the basis for a future determi- nation of the quantities of water reasonably required for future beneficial use within the Trinity River Hydrographic Unit. Pre- liminary estimates have been made and presented in Department of -1- Water Resources Bulletin No, 58, "Northeastern Counties Investi- gation," June i960 and Bulletin No. 83, "Klamath River Basin Investigation," May 196O. Final determinations of future water requirements will be based on estimates of (l) future land use, (2) economic pat- terns, (3) population, (4) Industrial and agricultural develop- ment, and (5) recreational needs. The data presented herein have been reviewed In pre- liminary form by the Trinity County Board of Supervisors, farm advisors, and local water users. These groups submitted changes which were reviewed In the field, and adjustments were made where the original data were found to be Incorrect. Organization of Report This bulletin consists of five chapters, three appendlxesj and three plates. Chapter I contains a general description of the Trinity River Hydrographic Unit, Chapter II, "Water Use," presents data on surface water diversion systems, related water rights information, measurements of quantities of water diverted, and an analysis of consumptive use. Chapter III, "Land Use," includes a history of land use within the unit and tables of present land use. Plates prepared in connection with Chapters II and III delineate the areas of various present land uses and the locations of diver- sion systems. Chapter IV, "Land Classification," Includes a tabu- lation of lands classified with regard to their potential for Irrigated agriculture and for recreational purposes. Plates -2- prepared for this chapter delineate the respective classes of land grouped Into several major categories. Chapter V, "Summary," summarizes the report. Appendix "A" presents the text of Section 232 of the California Water Code and a discussion of the pertinent responsi- bilities and work program of the Department of Water Resources. Appendix "B" Is a bibliography of publications pertinent to the Trinity River Hydrographic Unit. Appendix "C" presents a short summary of California water law and a tabulation of applications to appropriate water in the unit. General Description of Area Location The Trinity River Hydrographic Unit lies within the Klamath River Basin of the North Coastal Area. The hydrographic unit comprises the entire watershed of the Trinity River, and occupies 2,556 square miles of Trinity County and 4l3 square miles of Humboldt County, as shown on Plate 1, "Location of Unit." The river rises in rugged canyons between the Scott Mountains on the northwest and the Eddys on the east, and flows generally south and west more than 80 miles to Douglas City, then northwest and north over 100 miles to its junction with the Klamath River at Weitchpec. Major tributaries are Coffee Creek, Stuarts Pork, Canyon Creek, North Fork, New River, and South Fork. Hayfork Creek is the major tributary to the South Fork. -3- The hydrographlc unit boundary follows the ridges separating the drainage area of the Trinity River from adjacent watersheds of the Klamath, Salmon, Scott, and Shasta Rivers on the north; the Sacramento River, Clear Creek, and Cottonwood Creek on the southeast; and the Mad River and Redwood Creek on the southwest. For purposes of this report, the Trinity River Hydro- graphic Unit has been divided into 13 subunits. Locations of these subunlts are shown on Plate 1, and the area of each is shown in Table 1. TABLE 1 AREAS OF SUBUNITS IN TRINITY RIVER HYDROGRAPHIC UNIT : Trinity : County, : Humboldt County, : Total area : square Subunit : in acres : in acres : acres :miles Burnt Ranch 134,600 134,600 210 Hayfork Creek 70,300 70,300 110 Hayfork Valley 172,200 172,200 269 Helena 176,900 176,900 276 Hoopa 152,800 152,800 239 Hyampom 24,000 3,900 27,900 44 Lower S. Fork 37,600 68,800 106,400 166 Middle Trinity 157,000 157,000 245 New River 150,300 150,300 235 Trinity Res. 459,800 459,800 718 Upper S. Pork 219,500 219,500 343 Weaver Creek 31,800 31,800 50 Willow Creek 1,800 38,900 40,700 64 TOTAL AREA 1,635,800 264,400 1,900,200 2,969 -4- Historical and Present Development Credit for the discovery and naming of Trinity River has been given to Major Plerson B. Reading. In l845, while on a trapping expedition from Sutter's Fort to northern California and Oregon with a party of 30 men and 100 horses, he crossed the raoiintalns from the Sacramento River and found a large stream which he called "Trinity River," supposing It led to the Pacific Ocean at Trinidad Bay, as marked on old Spanish charts. He and his party, however, were not the first white men to explore Trinity River watershed. Jededlah Smith crossed It In I828 while opening the Coast route to Oregon. Trappers traversed the unit on the Trinity Trail during the l830's. Settlers did not come, however, until after Major Reading discovered gold in the Trinity River In 1848. The lure of quick and easy gold, in I85O, brought many miners with pan, rocker, or sluice box to work the numerous gravel L bars that lined the Trinity River and its tributaries. By I854, most of the placer deposits which could be worked by rocker or sluice box had been gleaned of their precious metal and abandoned. The increased value given to gold during the Civil War caused a flare-up of work in placer mining and the introduction of hydraulic mining to develop the large, dry deposits which were previously unworkable. This method of operation required that water be applied under pressure to the deposits at higher elevations. To supply this water, and to obtain the head required, ditches were built from upstream tributaries, many of which are being used today for irrigation. -5- The development of gold mining went forward fairly rapidly, reached a major peak around I892, and then remained fairly constant until the recession of 1907. In the mid-1920' s there was a resurgence of heavy hydraulic and dredger mining in the Trinity River watershed. Production reached an all-time high in 19^2, was curtailed during World War II, resumed in 19^5^ and increased steadl]^ until 19^9^ when increasing costs caused a downturn in production. With the influx of miners, shops were set up and towns were formed to supply the needs of the miners. Weavervllle was established in 185O as the original Trinity County seat, but for purposes of administration and government, the county was attached to Shasta County until I85I. The first house was built of logs on a site adjacent to the present courthouse. The town grew rapidly and by I858 was estimated to have a population of 1,000, of which 200 were Chinese iiranigrants. As a trading center for early gold mining activities, Weaverville immediately became the most prominent town in the watershed. In recent years the population has increased steadily from 5OO persons in 1920, to 7^0 in 1940, to 900 in 1950, and to 1>740 in I96O, Throughout the hydrographic unit the population has tended to form small urban clusters scattered over the area but generally near one of the main branches of the Trinity River. Lewiston, located along the Trinity River east of Weaver- ville, is in one of the early placer gold mining areas. The com- munity was established around i860, and the general trend of its development has apparently followed that of Weaverville. The -6- Illustration 1 (left) Sold dredge near Trinity Center ^\^2^^^ zj;?^^''y\ -<*", f Illustration 2 (bottom) Hydraulic mining ^Jkl^l^ population dropped from about 250 persons in 1910 to a low of about 90 in 1930, rose to about 120 In 1950, and in I96O had in- creased to about 1,400 due to the construction work on the Trinity Dam, Willow Creek, a third urban area which was originally- founded on a mining economy, is located along the lower Trinity River about five miles downstream from its confluence with the South Fork in eastern Humboldt County. The town is believed to have been quite small until after the end of Hoopa Indian hostili- ties in 1864, and to have grown slowly until 1920. Since that time, the increase in placer mining activities gave the town an upward population trend. The increase in population, from about 150 in 1950 to almost 6OO in I96O, has resulted from the expand- ing lumber and plywood industry and the recreational activities of the area. The town of Hoopa was founded in 1864, when the Hoopa Valley Indian Reservation was established. Because of the lack of external commerce prior to the late 1940's, the population remained relatively static compared to that in the remainder of the basin. In 1940, the population of the valley is estimated to have been about 565 persons. By ±950, the number had risen slightly to about 730 persons, but the initiation of forest-centered activi- ties Increased the population to almost 1,850 people by I96O. As towns sprang up to supply the needs of the miners, agricultural land was also cleared and developed, E. M. George -8- recognized Hayfork Valley as a potential garden spot as early as 1850. In 1851, he organized a party of settlers to cross the mountains from Weaverville and Stelner Plat (an early settlement near the present Douglas City) to stake out ranches and clear the land for planting. The first settlement in the valley was called Kingsberry, later Hay Town, and finally Hayfork. By i860. Hayfork Valley was estimated to have a popula- tion of 1,200 and practically all of the agricultural land in the valley had been taken and was being improved. This was also the case with agricultural land throughout other areas of the Trinity River Hydrographic Unit. Produce from Hayfork Valley, which included grain, potatoes, beans, butter, eggs, and livestock, was sufficient ■ at that time to supply the entire population of Trinity County. The population of this agricultural center dropped to about 130 in 19IO, increased slowly to 200 in 1930, and by 1940 reached approximately 250, During the late 19^0 's the long-delayed development of commercial timber stands, coupled with steady development of other economic activities, almost tripled the population to 65O in 1950. In 196O the population is estimated to have Increased to 1,150, The Trinity River drainage contains 1,112,000 acres classified as commercial timberland by the United States Forest Service with a volume of 33.6 billion board-feet. About 30 per- cent of this acreage is In private ownership, the remainder being in either national forest, Indian lands, or public domain. -9- Coniferous timber in the area is composed of three principal types: ponderosa pine, Douglas fir, and true firs. The distri- bution of these is such that a mixed stand of the three con- stitutes about three-fourths of the commercial forest area and Douglas fir alone accounts for the remaining one-forth. The vast stands of timber have not -been uniformly de- veloped to date. The annual production of timber from private lands within the unit, amounting to about one million board-feet in 19^0, increased to an estimated 2l6 million board-feet by 1951. Since the annual sustained yield of timber from these holdings has been estimated to be about 125 million board-feet, the 1951 rate of timber cutting could not be maintained without permanent re- duction of the timber resources of the hydrographlc unit. Since 1952, the timber demands of the mills in the unit have been sat- isfied by Increased sales from public lands, thus reducing some- what the pressure of cutting logs on private lands. A peak of production occurred in 1956 when an estimated 407 million board- feet of timber was cut within the Trinity River Hydrographlc Unit. The United States Forest Service estimates the annual sustained timber yield from all sources within the hydrographlc unit to be 4lO million board- feet. Since the advent of intensive logging operations, begin- ning with the end of World War II, the forest products industry has been the leading element of the economy of the Trinity River Hydrographlc Unit. The number of wood processing plants within the hydrographlc unit has increased from one in 1939 to thirty- two in 1951* and to more than fifty in 1956, including at least -10- three which manufacture plywood- veneer products. The value of wood products manufactured In the hydrographlc unit In 1940 amounted to less than $22,000, However, it had increased to about 2.2 million dollars In 19^7* to between 5 and 6 million dollars In 195^^ and to over 8 million dollars in 1956. Mining of mineral products, once the backbone of the economy of Trinity River Hydrographlc Unit, has been generally relegated to a lesser position since World War II. The value of both metallic and non-metallic minerals produced in 1949 was $267,000. In 1954, it amounted to $300,000 and increased to about $540,000 in 1956. The indicated increase in the value of mineral products since 19^9 has been due mainly to the increased output of sand and gravel. In 1949, sand and gravel output replaced gold at the head of the "value of minerals produced" list, when it accounted for almost one half of the total value of minerals produced within the hydrographlc unit. A continued high level of building and construction activity in the unit since that time has kept it there. While gold is still the leading metallic mineral produced, chromium ore is beginning to be mined in the southern portion of the unit and copper concentrates are being developed in the Copper Bluff area of Hoopa Valley. Although potentially valuable de- posits of limestone are located only a few miles southwest of Willow Creek, they have not as yet been developed. The Trinity River Hydrographlc Unit is not conducive to the development of large acreages of intensive agriculture. -11- Both the topography and the climate limit the types of produce mainly to livestock and forage crops. However, the value of agri- culture products in the Trinity County portion of the hydrographic unit has increased from $173,000 in 1940 to $287,000 by 19^5 and to $426,000 in 195^. In 1957, there were 4,472 acres of Irrigated lands in the entire unit. While the Trinity River Hydrographic Unit has a large recreational potential, historically the recreational activities have been small due largely to the limited access to much of the area. The rugged mountains along with the sustained streamflow, the vegetative pattern, and the large wild game population of the area can provide an almost unlimited outdoor recreational activity. The large areas of national forest lands are capable of handling large numbers of the general public, if and when sufficient access roads, campgrounds, and other facilities are furnished. Since there are only portions of the Six Rivers, Shasta- Trinity, and Mendocino National Forests within Trinity River Hydro- graphic Unit, data on recreational activities covering the entire hydrographic unit are not readily available. However, based on dat; from Shasta-Trinity National Forest and from Lower Trinity Ranger District of Six Rivers National Forest, which includes the Willow Creek portion of the unit, there has been an appreciable increase in the recreational activities between 1947 and 1956, In 1947, it is estimated that there were about 85,000 visitor-days of recreational activities within the hydrographic unit, and this in- creased to 90,000 visitor-days in 1950, to 540,000 visitor-days in 1954, and to 580,000 visitor-days in I956. -12- The area of lands within the unit devoted to recreation amounted to only about 600 acres in 1957. However, a forest management plan for the extensive recreational development of lands surrounding Trinity Reservoir has been prepared by the United States Forest Service. About 7*000 acres have been classified for such uses as campgrounds, picnic areas, organization camps, resorts, trailer camps, and summer homes. Most of the water service in Trinity River Hydrographic Unit is provided by individuals for their own use, but there are a few water service organizations. These organizations are listed in Chapter II . The only large water development project in the unit, the Trinity River Division of the Central Valley Project, is under con- struction by the United States Bureau of Reclamation. Trinity Reservoir, the major storage feature of the project, has a storage capacity of 2,500,000 acre-feet and an installed powerplant capacity of 90,000 kilowatts. Water released for power will be reregulated in the reservoir behind Lewlston Diversion Dam for subsequent diver- sion into the Sacramento River through Clear Creek Tunnel, or for release down the Trinity River. Natural Features The Trinity River Hydrographic Unit is predominantly mountainous, varying in elevation from 305 feet at Weitchpec to 9,025 feet at Mount Eddy in the northeast corner of the unit. Irrigable agricultural lands constitute only a small part of the total area. Almost 60 percent has been classified as commercial -13- ^i Illustration 4 (left) Trinity Dam tlraberland by the United States Forest Service. The drainage i system of this rugged area developed from an uplifted plateau ' surface on extremely varied rock types and has resulted in a complex drainage pattern. Consolidated rocks in the unit include meta-sedlmentary, metamorphlc, and granitic types ranging in age from pre-Silurian to Cretaceous. Several areas of middle Tertiary continental sediments are included in the unit. The older rocks, generally found In the eastern part of the unit, include pre-Silurian schists, middle Paleozoic me ta- sediments and meta-volcanics, and Mesozoic granitic and ultrabasic intrusives. To the west a broad zone of Devonian to Triasslc meta-sedlmentary and meta-volcanic rocks is found. Mesozoic granitic intrusives and belts of ultrabasic rocks, often altered to serpentine, are associated with these rocks. In the extreme western portion of the unit Jurassic schists and meta- sediments, with associated serpentine and ultrabasic rocks are found. Middle Tertiary sediments of continental origin occur throughout the unit as isolated patches overlying the older rocks, and as old river channel deposits of gold-bearing gravels. The area Includes both residual and alluvial soils. Residual soils are formed in place by the weathering of the parent rock material and reflect the nature of the parent rock in their physical and chemical makeup. Residual soils in the Trinity River Hydrographic Unit are developed mostly from parent rocks of sedimentary or metamorphic type, and are usually sandy-loams over sandstones, and clay-loams and clays over shales and slates. These soils are nonlrrigable because of their steep slopes and are used mainly for cattle grazing. -15- Alluvial soils are formed from material eroded from Its primary source and subsequently deposited in the valleys. In the process of being transported, material from a variety of rock sources Is mixed so that alluvial soils very often have chemical and physical characteristics that cannot be traced to a particular rock type. Such soils contain gravel and cobbles that have been transported along with the finer soil materials. Irrigable lands in the Trinity River Hydrographic Unit, which constitute less than one percent of the total area, are alluvial soils occurring mainly as small, scattered, relatively flat bodies along the various rivers and streams of the unit. Larger bodies of irrigable lands are situated in Hayfork Valley and in the vicinity of Hoopa. Climate The climate of Trinity River Hydrographic Unit is char- acterized by warm summers and mild winters, except in the higher mountains which experience more severe winters. From 75 to 80 per- cent of the precipitation occurs from November through March with the remainder fairly evenly distributed over September, October, April, May, and June. July and August are dry except in unusually wet years. Most of the precipitation occurs as snow at the higher elevations, the "average snow line," considered to be the average of the lowest elevations at which there is snow on the ground on April 1, is about 4,000 feet. Annual precipitation, influenced by distance from the ocean and relative height of mountain barriers to the southwest, varies from 35 inches along the Trinity River and Hayfork Creek to 70 or 80 inches at the higher elevations of the ridges forming the watershed boundaries. -16- Table 2 shows the mean annual precipitation at selected stations within and immediately adjacent to the Trinity River Hydrographic Unit. TABLE 2 MEAN* ANNUAL PRECIPITATION AT SELECTED STATIONS IN OR NEAR TRINITY RIVER HYDROGRAPHIC UNIT : Period Station :Eleva- rPreclpitatlon : of : tion : (in inches) : record Big Bar Ranger Station 1,248 36.75 1914-1925 & 1943-1959 Burnt Ranch 2,150 37.70 1945-1959 China Flat 650 46.15 1909-1955 Forest Glen 2,340 57.73 1930-1958 Hay Fork Ranger Station 2,346 30.96 1915-1959 Hoopa 350 48.76 1941-1958 Hyampom 1,240 38.57 1940-1958 Mad River Ranger Station 2,775 55.15 1943-1958 Ruth 2,925 49.81 1912-1930 Salyer Ranger Station 623 45.17 1931-1958 Trinity Center Ranger Station 2,295 45.51 1941-1958 Weaverville Ranger Station 2,050 34.89 1871-1958 Weltchpec 7NNE 1,700 75.53 1910-1917 *Mean period 1905-1955. "Mean period" is a period which is believed to represent conditions of water supply and climate over a long period of time. Temperatures in the hydrographic unit are influenced by prevailing air masses, elevation, drainage of cold dense air from higher elevation, and distance from the ocean. The average annual extreme temperatures and average length of growing season for five representative stations are shown in Table 3. -17- The temperatures presented are the arithmetic means of the dally minimum and maxjmum temperatures and the extreme minimum and maximum temperatures In degrees Fahrenheit, for the Indicated period of record. The length of growing season shovm In Table 3 represents the average period. In days, between the last day In spring and the first day In fall when the dally minimum temperature fell below 32 degrees Fahrenheit. TABLE 3 SUMMARY OP TEMPERATURE DATA AT SELECTED STATIONS IN OR NEAR TRINITY RIVER HYDROGRAPHIC UNIT Station Elevation, in feet Mean* temperatures, in OF Extreme* temperatures, in °F : Average : length of : growing : season. Period of record Min. : Max. Min. : Max. : in days Weaverville 2,050 36.6 70.1 -7 116 117 1931-52 Forest Glen 2,3^+0 3^.7 67-3 -2 105 124 1931-52 Ruth 2,925 37.3 67.8 7 107 — 1919-30 China Flat (near Willow Creek) 650 i+2.8 70.6 9 112 228 1931-52 Weitchpec 1,700 U0.2 64.5 16 102 129 I92U-30 *Based on period c )f record. Water Resources The predominant source of water supply to the Trinity River Hydrographlc Unit Is the flow of surface water In the Trinity River and Its tributaries. Runoff is extended beyond the main precipitation period by the release of water from natural storage during the snowmelt period in spring and early summer. -18- Illustration 5 (right) rlxterior of Chinese Joss House, '.('eaverville Illustration 6 (bottom^ Interior of Chinese Joss House , V/eaverville V V?: — - i" ' .-^ i r ^ > -••"ir. "•s.^ r^ Records of flow are available for the stream gaging station designated "Trinity River near Hoopa." Streamflow informa- tion for this station, which measures runoff from 2,846 square miles, or 96 percent of the hydrographic unit, is summarized in Table 4. TABLE 4 SUMMARY OP RUNOFF DATA TRINITY RIVER NEAR HOOPA (1931-1957) Period Annual runoff iDlscharge, : In : in percent : cubic feet : acre-feet ; of average; per second Average runoff for period of record 1931-57 4,107,000 Runoff in minimum year of record 1933-34 1,900,000 Runoff in maximum year of record 1937-38 7,601,000 Maximum Instantaneous flow of record December 22, 1955 Minimum Instantaneous flow October 4, I931 47 185 190,000 162 Streamflow measurements made during the Irrigation season from May through September 1957, Indicated that the runoff of the Trinity River near Hoopa was IO8 percent of the 26-year (1931-57) average for the 5-month period. -20- CHAPTER II. WATER USE Present water requirements In the Trinity River Hydro- graphic Unit are met almost entirely by diversions of surface runoff. For this Investigation a survey was made of the systems established for the diversion of streamflow. Survey data reported herein Include locations and descriptions of diversions, uses, amounts of water diverted, and Information on apparent water rights relating to diversions. Diversions of water for all purposes are reported, except that those Involving less than approximately 10 acre-feet per season, such as Individual domestic users, are omitted. Quantities of water diverted during 1957 were measured In order to further describe the diversion systems. The measured quantities do not necessarily represent average diversions, since during any single year the quantity diverted will be Influenced by precipitation during the growing season and the available streamflow. As stated in Chapter I, runoff in the Trinity River during the summer of 1957 was slightly above average. Considerations other than available water supply, such as economic factors, may also affect the relation of any diversion record to typical operating conditions. No attempt was made herein to assess these factors. The diversion quantities reported herein generally represent the actual amounts of water taken from the respective sources, and therefore Include recoverable and Irrecoverable losses incidental to the primary use. -21- The location of water wells and the measurement of their production were not covered In this Investigation. All Irrigated lands reported herein are supplied from surface water sources. Urban water service In the unit Is provided In the following localities: Location Owner Source Lewlston Lewis ton Hayfork Hoopa Weaverville Weavervllle Guy P. Atkinson Company (Housing development — Trinity Project) United States Bureau of Reclamation (Housing development — Trinity Project) Trinity County Water Works District No. 1 United States Bureau of Indian Affairs California Pacific Utility Company Moon Lee Trinity River Trinity River Big Creek Supply Creek East Weaver Creek West Weaver Creek Rural domestic uses are supplied by individual domestic wells and diversions of surface water. Water Rights Water rights are an Important consideration in the deter- mination of availability of waters which are surplus to the present and future needs of an area wherein the waters originate. Data were, therefore, obtained with respect to apparent water rights in connection with the surface water diversions described herein. These rights may be based on approprlative or riparian -22- status. The California law of water rights, including both sur- face and underground water, is described briefly in Appendix C. Most of the water use in the Trinity River Hydrographic Unit is based on riparian rights or on approprlative rights established prior to 19l4. As of January 15, 1959, a total of 303 currently valid applications had been made in the unit under the provisions of the Water Commission Act of 191^. Permits or licenses had been granted for 277 of these applications, I6 were pending with the State Water Rights Board, and 10 were incomplete as of that date. Eight of the then pending applications were for diversion and storage at Trinity and Lewlston Reservoirs. On September I6, 1959, permits were granted for these eight applica- tions. All the applications are tabulated in Appendix C, Table C-1. There has been no major adjudication of water rights in the Trinity River Hydrographic Unit. Surface Water Diversions An attempt was made during the survey to locate and obtain data with respect to all diversions of more than 10 acre-feet per year. All diversions actually in use in 1957* and those which had been used within the preceding five years, were Included. The date of last use. If known, is recorded for such discontinued diversions. Direct diversions, as well as those involving significant surface storage, were located. All reser- voirs which had surface areas of about three acres or more were mapped. This size was considered the minimum size that could be -23- delineated on the aerial photographs used. Reservoirs located along and operated In conjunction with canals and ditches are shovm' on the land and water use maps, but are not considered as separate systems and are not assigned location numbers. Similarly, water supplies obtained from small Intermittent streams Intercepted by canal systems, which add to the primary diverted supply, are not classed as separate diversions. In some situations, water users have made efficient use of water supply by redlvertlng field runoff or spill collected fromj their own upstream diversion systems. In this investigation, such points of rediverslon are neither located on the maps nor assigned numbers. If return flow from another water user's operation is redlverted or if there is doubt as to the origin of the water, the diversion is delineated and assigned a number. Diversion systems of water companies or groups of water users are considered as single units j individual customer distribution points are not shown on the maps. There were 230 diversions of surface water located in the unit In 1957- These are classified by primary use as follows: Primary use Total diversions Number of diversions Irrigation 163 Mining 25 Industrial (lumber mills) 15 Domestic 11 Municipal 6 Power 9 Recreation (fish pond) 1 230 •24- Points of diversion and main canals or pipelines used to convey water from them are delineated on the 31 sheets of Plate 2, entitled "Land and Water Use." The diversions are listed In Table 5. Numbering System for Surface Water Diversions Surface water diversions are numbered to indicate their approximate location according to township, range, and section within the federal land survey system. In this report, each section is subdivided into 40-acre plots and the diversions are numbered within each of these 40-acre plots according to the order in which they were located. This system is illustrated on Plate 2. For example, diversion 31N/12W-21P1, which is shown on Sheet 2k of Plate 2 labeled as "21F1," is the first diversion located in the southeast quarter of the northwest quarter of Section 21 in Township 31 North, Range 12 West, Mt. Diablo Base and Meridian (MDB&M). Descriptions of Surface Water Diversions Description, history, and other information relating to surface water diversions were obtained by field Inspection, by interview with water users or their representatives, and by refer- ence to prior reports and official records. This Information is summarized in Table 5. Data in the table are arranged by diversion location number within each subunit. The purposes of each diversion, the quantity of water diverted during 1957j the extent of use, such as the number of acres irrigated, and the method of application of water are -25- Illustration 7 (top) Lunber mill near V/eaverville Illustration 8 (bottom) Hoopa Vail ey « w •>- '^■'^ *o si > y 5 Q UJ > _1 uj I in cr ■o c" _- ;' ■ c -u 0. 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If the purpose listed Is not the usual use for that diversion, notation Is made In the remarks column. The extent of domestic use Is specified only when five or more connec- tions are served. Stockwaterlng of less than 10 head of livestock Is considered to be a domestic use. The extent of Irrigation use Is based on the land use survey described In Chapter III. The type of water right under which the respective diver- sions are considered to be made Is Indicated In Table 5 as the "apparent water right." The determination of this Item Is based upon the best Information available from the owner, from files of the State Water Rights Board, from official records, and from other sources. The actual amount of the right. If established and known, and a reference to the source of data are also Included. Although this Information Is believed to be accurate. It Is empha- sized that It Is not based on sworn claims or testimony and should In no way be construed to represent a conclusive determination of water rights. In this report, references to the "miner's Inch" Indicate the California statute miner's Inch (l/40 cubic foot per second), the unit In common use In the Trinity River area. Diversions for which the apparent water rights are based on approprlatlve rights are listed In Table 5 as "approprlatlve. " Those that are not approprlatlve and for which the area of use Is apparently riparian to the stream or which the owner claims to be riparian are listed as "riparian." Diversions listed as approprla- tjve may also be riparian, although no attempt was made In such cases to determine the riparian status. -49- I In the case of an approprlatlve right, the amount tabulated Is that found In the filing. If any, or In the applica- tion, or in the latest permit or license which may have been issued in connection with the application. The reference given for an appropriation initiated after the effective date of the Water Commission Act (191^) is the number of the application on file with the State Water Rights Board. For appropriations prior to 191^^ the reference, if known, is the book and page number of the official county record in which the filing is recorded. Such filings were made in accordance with Sections l4lO and l422 of the Civil Code, as enacted in I872, which preserved the priority of a diligent appropriator from the time of filing and enabled him to prevail over a concurrent nonstatutory appropriator. Records of Surface Water Diversions Continuous or periodic measurements of surface water diversions were made by the Department of Water Resources during 1957i whenever it was feasible to measure the flows. Most of the diversions for nonagrlcultural uses and some of those used for agriculture, were operated throughout the year. Substantially all diversion measurements were started in April or May of 1957* prior to the commencement of intensive irrigation, and were continued through the irrigation season. Measurements of the year-round diversions were continued Into 1958 in order to obtain a complete year of record. A few diversions were located at a late stage in the survey and no measurements or estimates of these were attempted. -50- Results of the measurement program are reported In Table 6, and summarized below. When feasible, measurements of each diversion were made at a location above the area of first use and as close to the diversion intake as possible, but below any regulatory spill. Exceptions are noted in the table. Primary use Number of diversions Irrigation 139 Mining l6 Industrial (lumber mills) 12 Domestic 4 Municipal 3 Power 8 Recreation (fish pond) 1 Total Diversions I83 The total amount of water diverted at the I83 diversions for which measurements are reported was about 136,000 acre-feet, of which 37*200 were used primarily for power production, 79*300 for irrigation and stockwatering, 2,000 for urban purposes, 1,600 for rural domestic supply, 7*300 for operation of placer mines, 7*299 for the production of lumber and plywood, and 1,400 for a fish pond. Determinations of diverted quantities were made primarily by measurement of open channel flow and testing of pumps. Periodic current meter measurements of open channel flow were made during the diversion season to obtain channel ratings. The water surface stage was recorded either by weekly observations of a staff gage or with a continuous water stage recorder, from which quantities of -51- Illustration 9 Illustration 1 Relocated Trinity Center 5-? tit I. a |a 9 S ■^1 121 3 Q. I. ^ ■ 3 C ^ 3 ■8I& ;3 R 9. n ° 1^ o o o o J 1! a i i o o c o O "^ o o o o o o o o o o o o o «- o c op V 'SS ss ?,5 a -a u I I a > ^c o « «> ^ c cc^ o a I 1 *j a ■aSE -4 -a I 6 o :»ri *j c>^ "u tf- i m O Si 5^ I. O^ li 31 I u — T3 6C 5 r ^5 "Co* >5 .1 15 ■? "9 03l eir\ ^-^ ■j*-;:^. n L- M c lill c . 9 « 1^ 3 S3 55 R li s -53- ** c ui s o E w q: ^ -i i/\ rv (N( s to sr\ flO *o » c«- 2; ^ ^ 3 fi A ci r- (-» s ^ 3 -T -" -^ u « B c e !3 g R « « p > Z !^ g R S _ «-« u (^ t^ (^ -i 1 s g % C- •§ t s (^ :3 CM f^ S 8 s S § -» S 1 55 s sO a € & V « V » €• >> g s § «M s 2 E < e m « a ■0 s a § ;3 s § < c 1 z u 3 m s g R 2 3 D V 3 ^ -1 6 *o % *o < ^ r- c-\ :]£ > c S s R ~> u. >- — < X a ? u. jl *. o c I s t; c TJ 0. •a a. •0 a. ■0 0. 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X 1 ;3 -a -o ^ 1 I ^ ? \ > Sj n ■> > > -y T f ~3 "" ~' ■'■ 2 o •63- 3 a- I. »^ 11' ■O B t u >. :J3; >tV* O 3 ■D tJ T « If b « < ■si M « 2 lip -o --3 •^ -H OS a a. a > *j ■o -o W tTj; £38. a. « «r o e « 3 S c c v< !?e ^S5 u c t. a i> -H «.. ■a|gs a V Q — 3* 1 '"' 1 • ■^ € *»-* ■^ I ^ '«^ c 2 w o t) V V « 3 » j= « ^ c U«x o « c fir 1> 5^ o S 1g II p e o P- o(9 If R ■! ^ a^l V > c sss -64- flow were calculated. Existing weirs were used whenever available. These observations were supplemented by interview of water users to obtain additional staff gage readings and to obtain data on possible I abrupt changes In operation between readings. The values In Table 6 are based on various methods listed In the column, "Method of observation and calculations." When the monthly data were sufficiently reliable, monthly values are shown. When the diversion for a given period Is known to have been zero. It is so indicated. The data, however, were sometimes not sufficiently detailed to Justify a breakdown into monthly values. These cases are indicated by — NR — . Incomplete or uncertain data are desig- nated as estimates. Notations regarding the extent of irrigation period indicate the overall period of irrigation but not necessarily that daily or continuous irrigation was practiced through the period. Notations that a stream source was "dry" at a certain time indicate that streamflow was so low as to make diversion infeaslble. Index to Surface Water Diversions For convenience of the reader, an alphabetical index of diversion owners and diversion names, along with the subunit location of each diversion and references to map and page numbers on which data concerning each appears, is shown on Table 7^ which is at the end of this chapter. Imports and Exports There are no surface water supplies imported to Trinity River Hydrographlc Unit from areas outside the unit. Although there -65- Is presently no export of surface water from the unit, diversion facilities are being constructed In conjunction with Lewlston Dam, which will divert an average of approximately 990,000 acre-feet per year Into the Sacramento River Basin. Consumptive Use In the Trinity River Hydrographlc Unit, the largest quantity of water diverted from Trinity River and Its tributaries Is for Irrigated agriculture which also has the largest consumptive use of water. Consumptive use Is defined as water consumed by vegetative growth In transpiration and building of plant tissue and by water evaporated from adjacent soil, from water surface and from foliage. It also Includes water similarly consumed and evaporated by urban and nonvegetatlve tjrpes of land use. As previously Indicated, a substantial portion but not all of the water diverted in the unit was measured or estimated during the investigation. During the year 1957, a total of 136,000 acre-feet of diversions were measured. This amount Includes water used for several purposes, as shown in Table 5. Therefore, and in order to obtain an irrigation water application rate per acre, cer- tain diversion records were selected from Table 5. This representa- tive sample indicates that about 27,800 acre-feet of water was used exclusively for the irrigation of 2,500 acres with some stockwaterlr; and incidental domestic uses (less than five connections) Included. If it is assumed that the stockwaterlng and incidental domestic uses during this period were a negligible portion of the total, then the average diversion rate by these diversion systems was 11.1 acre-feet -66- per acre. The seasonal diversion rates of Individual systems varied from about 1 to 100 acre-feet per acre, but for larger systems, those serving 50 acres or more, the rates varied from 2.0 to 13.5 acre-feet per acre. The total seasonal consumptive use of applied water by crops on the af ore-mentioned 2,500 acres of land is estimated to have been 4,800 acre-feet. This Is based on the unit consumptive use of applied water values published In Department of Water Resources Bulletin No, 83 as follows: Unit consumptive use of applied water In Crop acre-feet per acre Mixed, native and meadow pasture 2.0 Alfalfa 1.7 Hay and grain 0,6 Orchard 1 . 2 Field crops 0.9 Truck crops 1.2 The total seasonal consumptive use of applied water by all irrigated crops In the unit (3,880 acres) Is estimated to have been 7*^00 acre-feet In 1957. This value was derived In a manner similar to that described in the previous paragraph. In addition to the consumptive use of applied water by agriculture, about 1,300 acre-feet were used for domestic and municipal purposes and about 400 acre-feet were used for industrial purposes in the production of lumber and plywood. The consumptive use for power and mining purposes is negligible, consisting primarily of evaporation from canal surfaces, -67- TABLE 7 INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Location num ber Subunit R ef erences Plate 2 Sheet No. Text ond oppendines Pcqe No. Albiez, Frieda 31N/12W-11E1 3UJ/12W-11M1 Hayfork Valley Hayfork Valley 24 24 31, 32, 84 55, 84, c-io Alexander, Sam.^Jr.J 32N/10W-5D1 32N/10W-5E1 32N/10W-6H1 Helena Helena Helena 21 21 21 33 33, 33, 85 85 Alley, William L. 34N/9W-29M1 34N/9W-29M2 Weaver Creek Weaver Creek 16 16 •^7, ^7. 63, 63, 92 92 Amort, Leo F. 3N/6E-27A1 Hyampom 20 37, 58, 87 Anderquist Umber Company, Inc. 6N/6E-21N1 Burnt Ranch 11 28, 53, 82 Atkinson, Guy F<,, Company 33N/8W-17E1 Middle Trinity 19 22, 39, C-21 Augustine, Robert L. and M. A, 3N/6E-2AR1 Hyampom 20 37, 87, c-17 Austin, B. C. Smith, L, A. 38N/6W-16H1 Trinity Reservoir k "^5, c-13 Bauchou, Adrian B. and Mary R, 36N/7W-8K1 Trinity Reservoir 10 42, 6o, 90 Beamer, R. 31N/12W-3N1 31N/12W-10C1 Hayfork Valley Hayfork Valley 24 24 31, 31, 55, 84 84 Bennet, Kurt 4N/8E-9C1 33N/12W-6C1 33N/12U-6F1 33N/12W-6U Burnt Ranch Burnt Ranch Burnt Ranch Burnt Ranch 17 18 18 18 27, 28 28, 28, 53 53 53 Berg, Per 0. 6N/6E-3Wtl Burnt Ranch 11 28 Biggerstaff, Kenneth J. 34N/9W-29N1 3U1/9W-29N2 3U1/9W-32D1 Weaver Creek Weaver Creek Weaver Creek 16 16 16 63, 63, 64, 92 92 92 Blair, V. Ethridge, Bryan Monroe, G. W. Stone, Co Swink, J. E. 34N/12W-31N1 Burnt Ranch 15 28 Bloss and McClary Ditch Foster, W. C. McDonald, E. K., et al. 36N/7W-18B1 Trinity Reservoir 10 '^3, 61, 90 Bonner, Myrtle W. Hoxie, Laura E, Pool, Marjorie E. 37N/7W-7G1 Trinity Reservoir 7 44, 61, 90 Brizard Company See Jameson Ditch Byard, Burton 30N/11W-17P1 30N/11W-19A1 30N/11W-2CIE1 Hayfork Valley Hayfork Valley Hayfork Valley 27 27 27 30, 30, 30, 51^, 83 83 83 California-Pacific Utilities Co, 3AN/9W-30G1 Weaver Credc 16 22, "♦7, 64 -68- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Location n um ber Subunit R ef erences Plate 2 Sheet No. Tex one Po ) appendixes le No. Canyon Creek Enterprises 35N/10W-29D1 Helena 12 3"^, C-15, C-l6 Carpenter, Mary M. 5N/7E-20N1 Burnt Ranch li» 27, 53, 82 Carpenter, Sarah 5N/5E-12R1 Lower South Fork Ik 37, 87 Garr, Charles J, and Catherine I, 33N/10W-6D1 Helena 18 33, 85, C-19 Carr, C. E. 37N/7W-eEl Trinity Reservoir 7 44, 90 Cedar Stock Ranch Ralston, Stewart Stewart, Graeme 35N/8W-19P1 35N/8W-26Q1 35N/9W-36H1 35N/9W-36N1 Trinity Reservoir Ti-inity Reservoir Trinity Reservoir Trinity Reservoir 13 13 13 13 42, 4a 42, 42, 89 60 90 Chapman Brothers 33N/lllrf-25Al Helerm 18 3'^, 56, 85, C-13 Clearwater Ditch Schiell, Lo W. 29N/11W-1C1 Hayfork Valley 29 29, 5^ 83 Comstock Ditch Scott, Edwin W, 36N/7W-17D1 Trinity Reservoir 10 '^3, 61, 90 Costa, Frank, et al. 3iiN/9W-l6Gl See Huston Ditch ^addle Trinity 16 to. C-12 See Junkans Ditch Costa, George L. 38N/6W-1/^1 Trinity Reservoir h ^% c-13 Covington Lumber Company 35N/8W-/.K1 Trinity Reservoir 13 42, 60, C-14 Crawford, Clarence H, 3UJ/11W-7A1 32N/ir*i(-28Kl 32N/11W-30Q1 32N/11W-33K1 Hayfork Valley Hayfork Valley Hayfork Valley Hayfork Valley 24 21 21 21 30, 33, 33, 33, 54, 56, 56, 56, 83 85 85 85 Dailey, Hermis W. Dailey, Viola A. 6N/6E-12H1 6N/6E-12L1 6N/6E-12L2 New River New River New River 11 U 11 40, 60, C-14 140, 60, 'a, 60, 89, C-iO, 89 89 Dale, Melvin E. Rais, Alvis 32N/9W-8Q1 Kiddle Trinity 22 38, 58, 88 DeHaven, Ray and Roy 35N/10W-29N1 Helena 12 35, 56 Dehnhoff, William 31N/11W-MJ1 Hayfork Valley 2A 30, 5*^, 83 Delaney, Robert and Margaret See Trinity Alps Resort Detillion, Doris Grotzman, Charles 3M/11W-9B1 31N/11W-9C1 31N/11W-15B1 Hayfork Valley Hayfork Valley Hayfork Valley 24 24 24 31, 31, 31/ 55, 84 84 84 Detillion, Roy and Doris See H. Leo Tewell Devore, R. 31N/11W-1Q1 Hayfork VaUey 24 30, S'^, 83 Dose, Eric 5N/6E-22C1 Burnt Ranch U 27, 53, 82 -69- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Location num ber Subumt R ef erences Plate 2 Sheet No. Text and appendixes Poqe No, Dulevitz, Phillip and Wylda 2N/7B-7H1 Upper South Fork 23 1*6, 91, c-io Duncan, Ernest 33N/12W-6A1 Burnt Ranch 18 28, 53, 82 Duncan, James 31N/12W-36C1 Hayfork Valley 2k 32, 55, 84 Dunkin, William C. 30N/12W-13R1 Hayfork Valley 27 30, 5'^, 83 Dunne, Numa P, Hill, Clair A, 37N/8W-24U Trinity Reservoir 7 ^■?, 62, C-ll Durham, Henry 33N/9W-24F1 Middle Trinity 19 ko, 88 Egan, William (Mrs.) Rourke, J. D. 31N/12W-23J1 Hayfork Valley 24 32, 55, 84 Ethridge, Bryan See Vo Blair Fisher, Hardy F. 34N/11W-1B1 Helena 15 3^^, C.15 Ford, Earle F. 32N/10W-1J1 Weaver Creek 21 "^7, 92 Foster, W. C. See Bloss and McClary Ditch Fountain, Everett 6n/5E-1/£1 Burnt Ranch 11 27, 53, 82 Francis Ditch Morris, J, R, 32N/11W-35A1 Hayfork Valley 21 33, 56, 85 Fullerton, Grover D. 35N/10W-20D1 Helena 12 3'*, 56, 85 Gambi, Mario and Peter 6N/5E-4F1 Willow Creek 11 48, 64, 92 Garrett, Lee 3N/6E-22F1 Hyampom 20 37, 86 Garrett, William, Jr. 3N/6E-15A1 3N/6E-15H1 3N/6E-16H1 4N/6E-32M1 Hyampora Hyampom Hyampom Lower South Fork 20 20 20 17 36, 36, 36, 37, 57, 57, 58, 86 86 86 87 Gates, Grover A. and Emma E, 3N/7E-UJ1 3N/7B-27C1 Hayfork Creek Hayfork Creek 20 20 29, 29, 53, 53, 82, C-ll 82 Gleason, Walter M. 6N/5E-15Q1 Lower South Fork 11 38, 58 Gorsuch, Ralph Schnetzer, George 37N/7W-19N1 Trinity Reservoir 7 hk, 61, C-12 Greeneisen, Robert 36N/7W-21L1 Trinity Reservoir 10 ^Z, 61, 90 Greenleaf, Gene 3N/6E-25B1 Hyampom 20 37, 58, 87, C-12 Grlbble, Bnlly 33N/10W-7J1 33N/10W-8H1 Helena Helena 18 18 33, 3"*, 85 85 Grotzman, Charles See Doris Detillion Haines, Thornton 3N/6E-22M1 Hsrampom 20 37, 86 -70- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Locotion • number Subunir R ef erences Piote 2 Sheet No. Tex t and oppendixes Poqe No. Halbert, Floyd Landaker, Luia 31N/12W-?lRr 31N/12W-21F1 Hayfork Valley Hayfork Valley 24 2h 32, 32, 55, 55, 84 84 Hall, Hugh 31iJ/12W-28Dl Hayfork Valley 2U 32, 55, 84 Halverson, H, R. and W. L. Kimbel, T. 3. Shapley, Albert L. and Eniily Williams, WilUam and Ulley 32N/8W-30M1 Middle Trinity 22 38, 58, 88, C-14 Hard Hats Trailer Park 33N/8W-17M1 Middle Trinity 19 39, C-22 Hawkins, W. J. and Sons 31N/I2W-11M2 Hayfork Valley 2U 32, 55 Helfenstein, Joseph 1S/7B-5C1 Upper Sout! Fork 28 1*6, 63, 91, C-13 Henderson, Caroline 6N/5E-25D1 Lov«r South Foric 11 38, 87 Heninger Brothers 38N/9W-35N1 Trinity Reservoir 4 46, 63, C.14 Hill, Clair A. See Numa P. Dunne Hinters, Bryan 3AN/UW-29B1 3W11W-29B2 Helena Helena 15 15 3^ 56, 56, 85 85 Holcome, Brizard (Mrs.) 6N/6E-21U Burnt Ranch 11 27, 53, 82 Hoopa Indian Reservation See United State Bureau of Indian Affairs Hostetter, A. E, 33N/12W-3P1 Burnt Ranch 18 28, 82 Hoxie, Laura E. See Myrtle W. Bonner Hubbard, Katherine Kersch, Louis J. and Nora M. 35N/8W-10U Trinity Reservoir 13 42, 89, C-20 Huston Ditch Costa, Frank, et al. 3AN/9W-8H1 Middle Trinity 16 40, 59, 89 Irving, Jim 6N/6E-33C1 Burnt Ranch 11 28, 53, 82 Jackson, Harold, Ranch See Woodbury Ditch Jameson Ditch Brizard Company 7N/5E-30P1 Willow Creek 8 48, 64, 92 Jones, Waldo I, 31N/12W-9G1 31N/12W-9H1 31N/12W-9K1 Hayfork Valley Hayfork Valley Hayfork Valley 24 24 24 31, 31, 31, 84 55, 84 84 Jordan, L. V. 32N/10W-13^a 32K/10W-U,(31 Middle Trinity Middle Trinity 21 21 39, 39, 59, ?9, 88 88 Junction City Powerhouse Pacific Gas and Electric Co. 3U4/11W-1H1 Helena 15 3"*, 56 Junkans Ditch Costa, Frank, et al. 34N/9W-16B1 Middle Trinity 16 40, 59, 89, C-12 -71- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nonne or owner Location num ber Subun.t R ef erences Plote 2 Sheet No. Text end oppendixes Poqe No. Kaut, Paul F, 5N/6E-23N1 5N/6E-35F1 Burnt Ranch Burnt Ranch 14 27, 27, 53, 82 53, 82 Kelley, Thomas Bo, et al„ 3N/6E-23Q1 3N/6B-24B1 Hyarapora Hyampom 20 20 37, 37, 58, 86 58, 87 Kennedy, Clyde C. Manlove, William F. 33N/12W-5N1 Burnt Ranch 18 28, 53, 82, C-16 Kercher, Arthxu: 38N/3W-32C1 Trinity Reservoir 4 ^^, 68 Kersch, Louis J, and Nora M. 35N/8W-9K1 35N/8W-iaEl Trinity Reservoir Trinity Reservoir 13 13 42, 42, 89 6o, 89, c-io. See Katherine S. Hubbard C-15 Kimbel, T. S. See H. R. and w. L. Halverson Kozel, Rolf and Katherine 38N/8W-32K1 Trinity Reservoir 4 '*5, 62 Kozel, Rolf and Katherine Rother, F. 38N/8W-32U Trinity Reservoir 4 46, 62, 91, c-15 Kurysz, George J, and Ruth S, 30N/12W-12E1 Hayfork Valley 27 30, i^, 83 Ladd, Grover and Willard 7N/7E-2aMl 7N/7E-7P1 New River Hoopa 8 8 itl, 35, 60, 89 60, 89 Laffranchini, Allen 31N/12W-10N1 31N/12W-16R1 Hayfork Valley Hayfork Valley 24 24 31, 32, 84 84 Landaker, Luda See Floyd Halbert Leas, Bernie I, and Leslie 33N/9W-35C1 Middle Trinity 19 40, 59, 88 Lee, Jim 38N/7W-16Q1 Trinity Reservoir 4 ^+5, 62, 91 Lee, Jim Leitzell, Vfayne 38N/7W-aOFl 38N/7W-20F2 Trinity Reservoir Trinity Reservoir 4 4 62, 91 62, 91 Lee, Moon 34N/10W-35N1 Weaver Creek 15 22, 47, 64, 92 Leeper, Ralph 33N/9W-35H1 Middle Trinity 19 40, 89 Leeper, Ralph Lunden, Arthur E, 33N/9W-35D1 Middle Trinity 19 40, 59, 88 Leitzell, Wayne See Jim Lee Lorenz, Floyd and Grover 33N/10W-35F1 Middle Trinity 18 40, 59, 89 Lunden, Arthur E. See Ralph Leej ser Macumber, William, Sr. 3N/7E-2CIQ1 Hayfork Creek 20 29, 53, 82 Maire, Louis A., et al. 6N/7E-7J1 6N/7E-8M1 New River New River U 11 41 C-19 Manlove, William F. See Clyde C. Kennedy Marshall, Barbara 8NAE-13M2 Hoopa 5 35, 86, C-lO -72- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Location num ber SuDunit R eferences Plate 2 Sheet No. Tex one Po oppendixes le No. McCoy, Pearl E. 37N/8W-3F1 Trinity Reservoir 7 44, 62, 91 McDonald, E. K, 36N/7W-3Q1 Trinity Reservoir 36N/7W-9N1 Trinity Reservoir 37N/7W-29E1 Trinity Reservoir 37N/7W-29F1 Trinity Reservoir See Bloss and McClary Ditch 10 10 10 10 ^3, 44, 44, 61, 61, 62, 90 90 90 90 McDonald, J. W. and Viva 37N/8W-4H1 Trinity Reservoir 7 44, 62, 91 HcKnight, Janes H. and Cleone lo See Rule-Pipe Ditch Mitchel, Glen 4N/7E-24R1 Hayfork Creek 17 29, 53, 83 Monroe, G. W, See V, Blair Montgomery, David i •■» 3AN/11W-16H1 Helena 15 3^^, 56, C-16 Morris, J. Ro See Francis Ditch Mortensen, Nellie E. 3N/6E-9R1 Hyampom 20 36, 57, 86 Morton, WiUiam L. and Rosa 6N/5E-18J1 6N/5E-18R1 Lower South Fork Lower South Fork U 11 38, 38, 87, 87, C-IO c-io Nelson, George W, 9N/5E-1/J'1 Hoopa 3 36, C-IJ. Nelson, T. Ro Wallace, T, 32N/9W-33R1 Middle Trinity 22 39, 59, 88 Neubauer, John and Margaret 37N/8W-3C1 37N/8W-i!*Cl Trinity Reservoir Trinity Reservoir 7 7 44, 44, 62 62, 91 Nielsen, John 35N/7W-7H1 35N/7W-8R1 35N/7W-17D1 Trinity Reservoir Trinity Reservoir Trinity Reservoir 13 13 13 89 60 60, 89 Norgaar Sawmill 31N/l2W-ni.1 Hayfork Valley 24 31, 55 Ostrat, John 28N/12W-6J1 Upper South Fork 30 46, 63, c-iB Ostrat, Linda M. 29N/12W-32P1 Upper South Fork 29 ^, 92, Cll Pat Veneer Company See Salyer Stud Mill Patton, Ralph and C ertrude 31N/12W-36P1 Hayfork Valley 2h 32, 55, 84 Pacific Gas and Electric Company See Junction City Powerhouse Phares, Eugene T. a nd Bertha Co 31N/12W-Ua 31N/12W-5R1 Hayfork Creek Hayfork Creek 24 24 29, 29, 83 83, C-22 Phillips, Bert A. 32N/9W-5P1 32N/10W-10R1 Middle Trinity Middle Trinity 22 21 38, 39, 58, 59, 88 88 Pool, Marjorie E. See Myrtle W. Bonner Rais, Alvis See Melvin E, Dale Ralston, Stewart See Cedar Stock Ranch -73- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Location num ber Subunif R ef erences Plate 2 Sheet No. Text and append Poqe No. xes RarKlolph, Lena Ranier, Donald and Rankin, A, D, Elizabeth lS/8E-2^n 35N/9W-13R1 38N/8W-33K1 Upper South Fork Trinity Reservoir Trinity Reservoir 26 13 4 46, 63, 91, C C-15 42, 6o, 90, c c-u 46, 63, 91 -10 -10 Riewert, George E. 29N/11W-1P1 29N/11W-11A1 Hayfork Valley Hayfork Valley 29 29 29, 29, 54, 83 54, 83 Robards, R. E. 6N/6E-36H1 New River 11 1*1, C-ll Rochlin Veneer and Plywood Company 7N/5E-28N1 Willow Creek 8 48, c-19 Ross, Clifford and Fred 32N/9W-31Q1 Middle Trinity 22 38, 59, 88 Rother, F. See Rolf and Katharine Kozel Rourke, J. D. See Mrs. William Egan Rule-Pipe Ditch McKnight, Jaiies ■!. and Cleone I, 34N/9W-32E1 Weaver Creek 16 '^l, 64, 92, C -20 Russell, Edward J. and Ruth E, 34N/11W-26M1 Helena 15 34, 56, 85, C ■14 Salyer Stud Mill; Division of Pat Veneer Company 6N/5E-10P1 Willow Creek 11 48, 64 Schiell, L„ W, See Clearwater Ditch Schnetzer, George See Ralph Gorsuch Scott, Edwin W, 36N/7W-16B1 Trinity Reservoir See Comstock Ditch 10 '^3, 61, 90 Seay, Janes H. and Mildred 32N/10W-31P1 32N/10W-31R1 Hayfork Valley Hayfork Valley 21 21 32, 33, 55, 84 55, 85 Seymour, C. B. and H. B. 37N/7W-7E1 Trinity Reservoir 7 44, 61, 90 Shapley, Albert L. and Emily See H. R. and W. L, Halverson Shaw, Jack H., Sr. 5N/8E-30D1 Burnt Ranch 14 27, C-14 Smith, L. A. See B. C. Austin Smith, Ralph L. , Lumber Company 29N/11W-11H1 29N/11W-11H2 Hayfork Valley Hayfork Valley 29 29 29, 30, 54, C-17 C-17 Snow, Miriam M, 37N/8W-11C1 Trinity Reservoir 7 1^5, 91, C-12 Spears, Joseph J, 35N/10W-19Q1 Helena 12 3"^, 56, c-14 Spellenberg, Honer and Carol 5N/6B-25G1 5N/6E-25G2 Burnt Ranch Burnt Ranch 14 14 27, 27, 82 82 Stewart, Graeme See Cedar Stock I lanch Stone, C. See V. Blair Stott, Reo D. 32N/9W-i£l 33N/11W-3L1 Middle Trinity Helena 22 18 38, 34, 88 56 -74- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Location num ber Subunit R ef erences Plote 2 Sheet No^ Text ond appendixes Poqe No. Swink, J. E. See V. Blair Terry, John Q„ and Anna E, 3WJ/11W-31A1 Burnt Ranch 15 28, C-12 Tewell, H. Leo 31U/11W-3N1 Hayfork Valley 24 30, 83 Todd, Max A. 5N/6E-18N1 5N/6E-18P1 Lower South Fork Lower South Fork 14 14 37, 58, 87 38, 58, 87 Trimble, Jim 4N/6E-16H1 Lower South Fork 17 37, 58, 87 Trin-Co Forest Products 33N/9W-7G1 Weaver Creek 19 ^♦7, 63 Trinity Alps Land Company 33N/8W-19A1 Middle Trinity 19 39, C.21 Trinity Alps Lumber Company 31N/12W-11R1 31N/12W-12Q1 Hayfork Valley Hayfork Valley 24 24 32, 55 32, 55 Trinity Alps Resort Delaney, Robert and Margaret 35N/9W-28A1 35N/9W-28N1 Trinity Reservoir Trinity Reservoir 13 13 42, 60, 90 42, C-12 Trinity County Water Works District No. 1 31N/11W-7H1 Hayfork Valley 24 22, 31, 55, C-18 Trinity Farm and Cattle Company 36N/7W-11H1 36N/7W-14D1 Trinity Reservoir Trinity Reservoir 10 10 43, 61, 90 43, 61, 90 Trumble, Frank 38N/7W-3F1 38N/7W-10D1 39N/7W-1WJ1 Trinity Reservoir Trinity Reservoir Trinity Reservoir 4 4 2 45, 62, 91 45, 62, 91 46, 63, 91 United States Bureau of Indian Affairs; Hoopa Indian Reservation « 7N/5E-7D1 8N/4E-2R1 8NAE-10P1 8N/4E-13M1 8N/4E-26F1 8N/iE-26F2 Hoopa Hoopa Hoopa Hoopa Hoopa Hoopa 8 5 5 5 5 5 35, 37 35, 57, 86 35, 57, 86 35, 57, 86 22, 36 36, 57, 86 United States Bureau of Reclamtion 33N/8W-19A2 Middle Trinity 19 22, 39, C-22 United States Plywood Corporation 32N/10W-12B1 Middle Trinity 21 39, 59 Van Alstyne, Thomas F, 2N/7E-5R1 Upper South Fork 23 46, 91, C-11 Van Vleet Wood Products 8N/5E-31F1 Hoopa 5 36 Wagner, Bud 36N/6W-6C1 Trinity Reservoir 10 43, 60, 90 Wallen, Frank 6N/6E-16Q1 Burnt Ranch 11 27, 53, 82 Wallace, T. See T. R. Nelson Weaver, Kent M. and Jean S, 37N/8W-nBl Trinity Reservoir 7 45, 91, c-18 Wellock, Ben 33N/9W-26E1 Middle Trinity 19 40, 59, 88 Whipple, John C, 37N/6W-30K1 37N/6W-30Q1 Trinity Reservoir Trinity Reservoir 7 7 43, 61, 90 44, 61, C-17 Williajns, William and Ulley See H. R. and W. L. Halverson -75- TABLE 7 (Continued) INDEX TO SURFACE WATER DIVERSIONS IN TRINITY RIVER HYDROGRAPHIC UNIT Diversion nome or owner Locotion num ber Su bunit References Plate Z Sheet No Text and appendixes Page No. Wilson, Harold J. and Mary J, Wood, Janes R. Woodbury Ditch Harold Jackson Ranch Wooden, Donald W. Wright, William B. Young, Daniel F. Young, Silas and Betty I. Young, Daniel F. Youngblood, Phyllis 33N/8VH5M1 33N/8W-aDHl 32N/11W-19F1 30N/11W-12D1 6N/5E-9K1 33N/9W-12L1 Middle Trinity Middle Trinity Hayfork Valley Hayfork Valley Willow Creek Middle Trinity See Silas and Betty I. Young 7N/5E-35D1 7N/5E-35D2 3N/6E-2U1 Willow Creek Willow Creek Hyampom 19 39, 59, 88, C-21 19 39, 59, 88 21 33, 55, C-15 27 30, 'ih, 83 11 1*8, 6U, 92, C-L2 19 39, 59, 88, C-14 8 ^ 8 148 20 36, 58, 86 -76- CHAPTER III. LAND USE The results of a survey of water uses and water facilities in the Trinity River Hydrographic Unit were presented in Chapter II. In this chapter are reported the results of a survey of present land uses as related to water use. Also included is a brief summary of historical conditions. A thorough knowledge of the nature and extent of land and water uses under past and existing conditions within this hydrographic unit is one of the primary requisites in evaluating future water requirements within the unit. Historical Land Use As previously noted, the earliest development in the Trinity River Hydrographic Unit took place with the discovery of gold in 1848. E. M. George is recorded to have led a party to develop Hayfork Valley in I85I and by i860, practically all of the agricul- tural land in the valley had been taken and was being improved. There are little data available as to the acreage of agricultural lands involved. An early land use survey, including Trinity River Hydro- graphic Unit, was reported in two reports by Frank Adams: (l) "Irrigation Resources of Northern California," published in "Report of the Conservation Commission of the State of California," January 1, 1913, and (2) Bulletin 254 by the U. S. Department of Agriculture, Office of Experiment Station, "Irrigation Resources of California and Their Utilization," published in 1913. -77- Mr. Adams reported that In 1912 there were some 6,355 acres of irrigated lands in the hydrographic unit. Present Land Use A detailed survey of land uses in the Trinity River Hydro- graphic Unit was conducted in 1957 as a part of this investigation. The land uses mapped in this survey as related to water use fall into four major categories: irrigated lands, dry-farmed lands, urban lands, and recreational lands; and one minor category: natura- ly high water table lands, such as natural meadowlands. Lands not falling into any of these five categories were mapped as native vegetation. The various types of land use mapped in 1957 are delineated on Sheets 1 through 31 of Plate 2. The acreages of land uses within each subunit are presented in Table 8. The values represent gross acreages, including non-water-service areas such as roads, ditches, building and storage areas, and miscellaneous rights-of-way, which occur within the mapped areas. Methods and Procedures The land use survey and the location of surface water diversions were accomplished by relating field observations to aerial photographs having a scale of about 1:20,000. Stereoscopes were used to assist in the field mapping procedure. As each point of diversion was located, it was plotted on the aerial photograph and as the use of each parcel of land was determined, it was delineated on the aerial photograph. The hydrographic unit was traversed by automobiles as completely as roads and terrain permitted. Where necessary because of poor accessibility inspections were made on foot -78- TABLE 8 LAND USE IN TRINITY RIVER HYDROGRAPHIC UNIT, 1957 (In acres) Subunit and county Irrigated lands Meadowlonds Dry-formed 1 onds Urban londs Recreational lands Burnt Ranch Trinity Ccwnty 150 10 30 30 ito Hayfork Creek Trinity Ckiunty ll«0 10 Hayfork Val iey Trinity County 1,110 10 720 itO Helena Trinity County 80 70 20 30 Hoopa HuBiioldt County 200 10 220 20 Hyampooi Trtnlty County 190 10 Lower South Fork Trinity County HvBiboldt County Tbtal 60 10 70 10 10 10 10 Middle Trinity Trinity Covmty 570 370 200 30 New River Trinity County 90 20 Trinity Reservoir Trinity County l,6ito» 320* ItO* 20 110 Upper South Foik Trinity Cotmty 90 10 20 Weaver Creek Trinity County 1|0 260 willow Creek Hunboldt Co\inty UO 60 120 ko TRINITY COUNTY HUMBOLDT COUNTY TOTAL i^,l6o 320 3140 3itO 520 5io 1,250 1,^ 1+20 60 TSO ♦Includes lands within high-water line of Trinity Reservoir now under confitructlon: 1,300 acres irrigated lands, 150 acres meadowlonds, and 30 acres diy-f armed lands. 79 An example of an aerial photograph with land use data delineated on It is shown on page 8l . After completion of the field mapping, the data delineate on the photographs were transferred to copies of United States Geo- logical Survey quadrangle maps reproduced at a scale of 1:24,000, This procedure was necessary to bring the delineated areas to a common scale for accurate determination of acreages, since the scale of the aerial photographs utilized varied widely. A series of these maps showing the location of all diversions and the fields including idle and fallow lands associated with each irrigation diversion, was colored according to the land use categories and was reviewed by local parties concerned. These work maps were then used in the preparation of Plate 2. Another series of these maps was used in computing the acreages of the land uses. Each delineated area on these maps was manually cut out and was carefully weighed on an analytical balance. These weights were converted to acreages using ratios determined foi each of the Individual maps. This method has proven to be a very expedient and accurate means of area determination where a large number of small parcels are involved. Irrigated Lands Irrigated lands, as designated in this report. Include all agricultural lands which receive water artificially applied. Acreages of irrigated lands are reported in Table 9 by surface water diversion and by subunits showing the crop grown. These irrigated lands are segregated into pasture, alfalfa hay and pasture, other -80- Illustration 11 Example of land use delineated on aerial photo.gjraph Legend iPl . irrigated alfalfa iP3 , . irrigated mixed pasture nD. . nonirrigated deciduous orchard U . . . Urban UC. . Urban Commercial KV. . . Lative Vegetation -81- m z z> z o X CO a ,T^ "=• < — (T) Z (X «fl m *^ <^ £ "^ ' O o UJ >- c ^ X ^ < 55 q: a: iij q: > z or o o CO o\ -■^ rH t-- rH VD O o o\ ir\ f- ir> CM J- ITv \f\ -^ m H M ITN rH »H ■o i" ^ « o -o o -:f ■o t'-H r^ — - o ■o — «, « 2|b o g a* CO- o\ ^ rH r- rH vo O o o\ \S\ f- in OJ ir\ ir\ K 5 C J- ro rH ^ ir\ rH ^ 10 u a 3 o o 1- o -o o £ o\ OS o O 5^ OJ o O U. o ** c o - n o .. o> o (— O o t- Z 2 n 3 (D — m ~ 3 Z: to ^ "O 0) « 5 c ^ ^ -°^ I o o LlJ •^ >s ■" o s w UJ <°^ z < ir a. ^ h- (T s Z O o (E li- o 01 3 (D o > < I v S V > 3 GO .-( ITS o \s\ t^ i/> rH in ir\ o a o J- r-\ CO rH z •o a> o\ -3- t- M3 \o OJ K OJ lJ-\ 5 0) M u Ci^' e CO 0) o 0) E 25 »H o u > H .H •H rH o > 1 § c^ 1 W o to c a; C OJ 0} ■H ■3 S O Q < <" > o 01 ^ at ^ +J :i U £ X ^ i J5 (0 § to i5 Q f-i H (K 4J CQ -P u h o k. OJ U (U ^H u M H -H tl ■H Fh W K P3 Oi tu 6. 2 •-3 < O 3 w 4^ o :* o ~l" a> ■a X3 +> 1 H o V. M »-4 ^ H 3 rH H t\l ^ (VI rH iH \o rH r-( rH CU ;c rH o -H C O o 5^ R g^'V O 3 d 3 ^ = 7 1 ^ X 5 4. 'V ^ 7S (M 1 H 1 rH CM 1 t ~-^ •8 1 ^ ^ u m "^ITX '^ Q ^ K ^ ^ ^ o s S ss S S a K K s S (5S S a s; a ^ X ir* ir\ ir\ ir\ ir\ vo \o VO \o VO E fO PO oo m cr\ 00 82- c- z o 0) T -> c 0) o _l o *-* (T (_) n 0) UJ V c UJ 1- < X — -I (0 m u. < (£ UJ P ir > z o ^ o\ \D 1 o ^ O -* o o MD o cy r— t— o\ vo o VO CVJ -^ 1 ^ H cy i-i J- cy H M rH t— ■o 4) O-O Vi> O T3 (»C ^ ro — - O "O _ u, 4> °?° °o ? r-t o\ o J- O ^ o o MD o OJ ^ f_ C3\ VO V£> OJ H cy rH -^ C\J rH r^i rH ^- .b rH J* tfl O Q. 3 O o 1- o T3 O O O 6 5S t) o O ii. b ■a ?c a> °5 ^ o> O t- J- "? c o z •- c o 3) O o in 3 ~ •- {/) o?S 3 > — O 3 2) y. * o - m UN UJ UJ 2^ § CC a O o "O 1 o u. o ^ 1 > » 0^ 1 < s o I " > < a> > I s D 00 ox t- o ^ c^ VO m o 00 cy f-i t^ O Ql 3 ■o 0) o l/X l/\ J- -^ rH t- CJ\ M m w J cy 1) X ■P Jtf O >, >. CJ £ s! s g 01 ti c C § o 1 CJ § o w en ^ o o ■H o s -r( o u u lU V u u 1 ■p 1 rH Q H h UO) |>cq o V o 11 ^ o us 0^ rH ■*H rH rH o M w O a o ? oa m u :i cc X rs O ~^~ X 3 rH E 3 ^ ^ a 5 r^ 3 ^ H O t i ^ rH rH 3 C K E J- ir\ H rH H :x •-i rH H m t- E :? 1 1 1 1 1 I H ■ 1 1 I 1 1 C o CM =a :* :s 3 2 7 3 H s :» :x 3 :i 3 ^ sa o a 3 ;:^ rH rH rH d ::1^ ^ a 3 H rH ^ rH o 03 ■^o o o X ^ a 3" 3 1 1; ON 1" gnn §■ §■ § 3 3" 3 3 _J 5 s m m w (y m m m ro ro m rri m m -83- ■o — E Q o < o -I Q liJ z T3 0» C - e ° - O 3 5°^ il i. a ^ o a s?! sa ■H ra •H N 1^14 H O r-l O •H tH •H ^ ■H U +> O ■P O ■P o Q m a ui Q m OJ u - UJ 1- < X -I (0 m ir < X LlI (- tr > z o o 1- tdle irrigored lands t- O CO o ^_ tr- ^ ^ p; Total lands irrigated -^ o u a. 3 O o o O O O ir\ m CO 2S o o iZ o o o II O o c c o u o Alfalfa hoy ond pasture 2 CO >- 3 Z. o\ CO r- O a o ■o o • s < > a: O o o > o >■ < X ■D ii ■-» O 0\ <-< ON VO vo C\J OJ ^ CO E J) 6 ■S ^ ■H "S ►. " c tj O p p *i . fj J3 O ssss 1 .^. „s;"= H u o o x: 3 t. Cm «> " j= tj to n rH as = x-rt>. 2 • a o fi u 4J+> 43 «>0)«) ^ a ' u k, f< >->ri -ri ■r^ a a X ouoo^ V oooio^G oixx 3 >,ccc.rHa) H V x: ^ a Ti m u xi -3 0006.0 m o td^ou amoc 0) £} E C C o o o o -) ca Q X X •H coomir» tjiQ •-33i^'3 o\o\o m c\i crt m en li^rs vo i^^ ojoj ojcmoj a e a X K ^tn z zz^^ ^^b" <\j ncucicvj CM tn '^2'»i^ j-^ir. m mmcnm m tn mr^rripn mmm -85- •D — I S g ^ O _l Q (Tl ijj liJ < -J O CD — < ^ f- tr lO o X a. < -— Cr in (T o O >- £ X ^ cc > z cr ■n 9 C - r O Z " O I- o - o c !? 5fS i? 3 .^ 3 - :3 ... aj V) 0) CO a] U) 0) i-i d 0} 13 oj :i a> r^ CQ V. m -HO O ft o b "i:g +> -H M a) +J -H M CO tJ > c: 0} t^ 0) -d M Q, a> 0) O 10 TJ M P, S O 01 gl -P Vt O 0) -P 4-« O 0) ■P ^ O (1> ja -H O K K •H O ffi K •H O W tS CD C •H O 01 Eh C -I- a o § 3 ■H 3 d O o d Jii S S ^ VO CM I 9 U^ UN VO 3 OJ ^ K ^ S (O ro m -86- z ■- Z L> Q 0> uj X a. < '~ o q: o > X tr LlI > u o o o \OCO -4^c0rn ^.Hmcy >-* ^c\j Idle Irrigated lands vo CO -a- o Total lands irrigated --i C-- OJ OJ rH rH t— (J a. 3 o o o O O O 1 o o 5£ « o iZ o o o 11 O o « ■D C o t 2 m 3 O Alfaifo hay and pasture o 1- z m 3 X m u^ -J- OJ 3 O a. s o o 0) s 2 O a 5 < >- o o *" IT S o o > o z « OJ cu ^ CO i/\ r^ t^ -* CO E ?| 1° M 6 o o 3 •^ - *> a: CO .o ^7 4h -p u 13 5 to « ^5 6 • § ^ i " . §2 1 5 £o one -rj-Had -H S pec oJp. t^stos » o** 1 S w E C C o o o o -1 •a n X ■3 ■a - £ X -- (T > T3 e> c g2 "<§ M^ i o •-< T3 (0 I :1 a |3 E^ & . p. 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D O O ^^ o -D O O rH U 6 5S V o O ii- o "a ' Qi ^ ^ 3 C ° 6 * 1- C UN ir\ w CP O Z 1? u 3 m O o 1- 3 — z 3 ^ CD O q: o t^ ir\ <°S o > X *- 3 tr o LiJ CO o ■a (/I o (E o (T rH UJ 4) Q. s >- a. w , h- _ D w 2 £ 3 > X O t- [- cy m h- rH rH H o V) o ir\ O Z in f- 00 -3- CJ\ MD O K rH rH o >-i CO 5 •p V E co V $ a +> S s 5 1 (0 3 5 •H ■p c * >, (d d o g rH o rH a c c 5 ? &0 > >-J V rH ^ V h c >t c x; o ^ •H c A V +3 c H •H d » v p o o •A :g 5^ 0) :3 1 w N -P •r* s ^ > l| V t- c «) o ■O 3 §g t< s 4) JJ TJ 0) c>I X > pa q d 5l • 01 Eh OJ §•3 cc Eh to « ^ b o § ■H 1^ >-3 Q . C !5 r ^ ^ q: a: > z cr T5 a> C C o o UJ _i CO < o o 1- CVJI "1 s vo «/\ o^ en o\ 3! OJ 00 -^ d H CVJ -J- ■o • rt T3 Idl irrig) Ion \D \o o vo 5 •o Totol londs rigote 1 CI rH lA ir\ m 1 5l H S a 3 CO -i 1 m on j< •» u a. 3 o O o IT. ^ ON o ^\ K o ^ ^ m\ ■o o r-* o ^ H Q rHI H OJ CVJ tf\ ojI r- O 2S « o i 6 ■o O o o C^ a s ?<= 3 c o — £ 2 c w O* o 1 o t- o o irv o L/> " fi o 1- ir\ irv £? ^ 1 Z ^ O o 1- 3 3 (2 — 00 _-0 flJ — z 31 CO t/5 Alfalfc hoy on postur 3 cr o ^ it UJ UJ o o X Uj UJ o -3- f J- s I o o 1— > _) o 3 o < o _1 O o O O O LiJ 5 5 H o CL 3 o J- ITS u-\ O J- a z r-T rH ■o o ro ON OJ rH m r-l O rH m 4h 4-( or 05 10 0) 1 £ t. u o o ^ >> , o M +3 ■p o. OJ T) o 01 >t i 5 a U «! ■fH OJ i> 1 f-i rH « IH ■p O Ti H § § c: o tH a 1 o § •H -1 — cd :S ^ 1 -1- 1 o a s -d — •H O o 43 o - CA » » •H o •3 p c ^ 3 o ^ cy rH 3 o 3 o 5 * 1 a: s 1 El 1 rH oo 1 E-1 s e: 53 Eh o o OQ t 1 ^3 1 o\ Il5 1 1 1 oil n on a z" a as m S no a= "S" K -J ^ -a- ^ J- -* -* IS s a ^ s m PO m m m m \o vo ( hay and grain, field crops, orchard, truck crops and idle irrigated lands. Pasture was further subdivided into mixed, native, and meadow pasture; the latter comprising native pasture lands having a high water table induced by the application of irrigation water. Idle irrigated lands are those lands which were not irrigated in ' the year of survey but which had been irrigated within the preceding three years. Fallow irrigated lands are those cultivated lands which may be irrigated during the year of survey, but which at the time of survey were only tilled and not planted to a crop. There were no fallow irrigated lands mapped during 1957. The irrigated lands were identified on the work maps by diversion service area and by crops irrigated, but on Plate 2 they are grouped into three categories: (l) those lands which receive a full irrigation during the year of survey, (2) those lands which received only a partial irrigation because of insufficient water supply, and (3) those lands usually irrigated but which were idle In 1957. Naturally High Water Table Lands In addition to the lands which receive applied water as described above, there are lands supporting vegetation utilizing water from a naturally high water table, such as mountain meadows or lands adjacent to lakes and streams. These are shown on Plate 2 as "naturally irrigated meadowlands" and are listed in Table 8 as "meadow lands , " -93- .■^ 43. 5i:3iJ: nT.-i^,n^a^' •;\^»'W^, M* *""*^%' # 25!»r >^:.'^-^. *t •■«• :t»,JSsiiir Illustration 12 (top) Cattle grazing Illustration 13 (bottom) Hayfork Valley jHWir*" n»^#v«^ Dry-Farmed Lands Dry-farmed lands are those lands normally planted to a crop, but which do not receive applied water. This Includes all lands so farmed whether or not a crop Is produced in the year of survey. Lands are mapped as "dry- farmed idle" if uncultivated in the year of survey, and as "dry-farmed fallow" if tilled but with- out a crop. However, these are included in Table 8 and shown on Plate 2 as dry-farmed lands. Lands which had been idle for more than three years and appear to have reverted to "native vegeta- tion" were so mapped. It should be noted that the term "dry-farmed" as used herein refers to the farming practice on these lands and not to a lack of soil moisture. Since non-cultivated range lands with native cover are usually indistinguishable from similar lands not used for grazing purposes, both types are designated as native vegetation. Water use in both cases is essentially the same and is dependent upon precipitation. Urban Lands Urban lands include the total areas of cities, towns, small communities, industrial plots, and military reservations, which are large enough to be delineated. Also included are parks, golf courses, race tracks and cemeteries within or near urban boundaries. The acreages represent gross delineations, including streets and vacant lots, and are, therefore, not necessarily -95- fully developed at the present time. In this survey the bounda- ries of urban communities were delineated to include all lands with a density of one house or more per two acres. Military reservations are included in their entirety regardless of the ex- tent of development. Recreational Lands Recreational lands are mapped on aerial photographs in the field in four categories; (l) residential, (2) commercial, (3) camp and trailer sites and (4) parks. Recreational residen- tial lands include permanent and summer home tracts within a primarily recreational area. The estimated density of homes per acre was also Indicated. Recreational commercial lands Include those containing motels, resorts, hotels, stores, restaurants and similar commercial establishments in primarily recreational areas. Lands mapped in the camp and trailer sites category in- clude those areas so used within primarily recreational areas outside the boundaries of parks. The entire area within the boundaries of parks is included without regard to specific uses within them. Obviously, nearly all of the mountainous and water surface areas are suitable for some use such as hunting, fishing, hiking, picnicking and other recreational activities of this nature. For the purpose of this land use survey, however, con- sideration is given only to those lands where some fairly in- tensive development occurs requiring water service. -96- The recreational lands are combined into one group in Table B and on Plate 2. As in the case of urban lands, the areas delineated are not necessarily fully developed. Native Vegetation Lands which are essentially in a native state and not included in any of the above categories are mapped as native vege- tation. Native vegetation totals approximately 1,893,000 acres or 99 percent of the Trinity River Hydrographic Unit, Included in these areas are water siirfaces, scattered residences, and other associated uses covering a few acres or less vrfiich are too small to be mapped separately. These lands are used to some extent for mining, commercial timber production, livestock range, and recrea- tional activities such as fishing, hvmting, hiking and picnicking. -97- Illustration 14 CHAPTER TV. LAND CLASSTFTCATTON Calculations of future water requirements will be based In a large part on a classification of lands with regard to their potential for irrigated agricultural and recreational development. The results of such a land classification survey in the Trinity- River Hydrographic Unit are presented in this chapter. Lands were not classified in this survey with respect to their potential for urban development. The use of lands for urban purposes is closely related to population at any given time, and it is planned to defer designation of these lands until estimates of population and related economic studies are made in connection with determinations of future water requirements. The former Division of Water Resources made a reconnais- sance classification of lands of the State which was reported in State Water Resources Board Bulletin No. 2, "Water Utilization and Requirements of California," dated June 1955. A more detailed land classification survey was performed by the department and reported in Department of Water Resources Bulletin No. 58* and Bulletin No. 83. The entire area of the Trinity River Hydrographic Unit was included in Bulletin No. 83, but only that portion in Trinity County was included in Bulletin No. 58. The present investigation uses the same basic land classification survey which was used in Bulletin Nos. 58 and 83. However, additional data on classification of recreational lands have been included along with some minor modifications to the Irrigable agricultural lands and a remapping •99- of the present urban lands. Because of construction of the Trinity- project, the lands within the high-water lines of Trinity and Lewis- ton Reservoirs have been deleted from the irrigable and urban classifications reported in prior surveys. Methods and Procedures The general methods and procedures used in field mapping and tabulation of information were essentially the same as those described for the land use survey in Chapter III. An example of land classification delineations on an aerial photograph is shown on page 104. The standards used in the classification of lands are given in detail in Table 10. Table 10 LAND CLASSIFICATION STANDARDS Land : Class: Characteristics Symbol; Irrigable Lands V - These lands are level or slightly sloping and vary from smooth to hummocky or gently undulating relief. The maxi- mum allowable slope is 6 percent for smooth reasonably large-sized bodies lying in the same plane. As the relief increases and becomes more complex, lesser slopes are allowed. The soils have medium to deep effective root zones, are permeable throughout, and free of salinity, alkalinity, rock, or other conditions limiting crop adapta- bility of the land. These lands are suitable for all climatically adapted crops. H - These are lands with greater slope and/or relief than those of the V class. They vary from smooth to moderately rolling or undulating relief. The maximum allowable slope is 20 percent for smooth, reasonably large-sized bodies lying -100- Table 10 (Continued) LAND CLASSIFICATION STANDARDS Land : Class: Characteristics Symbol: In the same plane. As the relief Increases and becomes more complex, lesser slopes are allowed. The soils are permeable, with medium to deep effective root zones, and are suitable for the production of all climatically adapted crops. The only limitation is that imposed by topographic conditions, M - These are lands with greater slope and/or relief than those of the H class. They vary from smooth to steeply rolling or undulating relief. The maximum allowable slope is 30 percent for smooth, reasonably large-sized bodies lying in the same plane. As the relief increases and becomes more complex, lesser slopes are allowed. The soils are permea- ble, with medium to deep effective root zones, and are suitable for the production of all climatically adapted crops. The only limitation is that Imposed by topographic conditions. Any variation from the foregoing, as defined, is indicated by use of one or more of the following symbols : w - Indicates the presence of a high-water table, which in effect limits the present crop adaptability of these lands to pasture crops. Drainage and a change in irrigation practice would be required to affect the crop adaptability. s - Indicates the presence of an excess of soluble salts or exchangeable sodium in slight amounts, which limits the present adaptability of these lands to crops tolerant to such conditions. The presence of salts within the soil generally indicates poor drainage and a medium to high- water table. Reclamation of these lands will involve drain- age and the application of small amounts of amendments and some additional water over and above crop requirements in order to leach out the harmful salts. ss - Indicates the presence of an excess of soluble salts or exchangeable sodium in sufficient quantity to require the application of moderate amounts of amendments and some additional water over and above crop requirements in order to effect reclamation. h - Indicates very heavy textures, which make these lands best suited for production of shallow-rooted crops. -101- Table 10 (Continued) LAND CLASSIFICATION STANDARDS Land : Class : Characteristics S ymbol: 1 - Indicates fairly coarse textures and low moisture-holding capacities, which in general make these lands unsuited for the production of shallow-rooted crops because of the frequency of irrigations required to supply the water needs of such crops. p - Indicates shallow depth of the effective root zone, which limits use of these lands to shallow-rooted crops. r - Indicates the presence of rock on the surface or within the plow zone in sufficient quantity to prevent use of the land for cultivated crops. Urban Lands UD - The total area of cities, towns, and small communities presently used for residential, commercial, recreational and Industrial purposes. Recreational Lands RR - Existing and potential permanent and summer home tracts within a primarily recreational area. The estimated number of houses, under conditions of full development, is Indicated by a number in the symbol, i.e., RR-3 is suitable for three houses per acre. RC - Existing and potential commercial areas which occur within a primarily recreational area and which include motels, resorts, hotels, stores, etc. RT - Existing and potential camp and trailer sites within a primarily recreational area. P - Existing and potential county, state, federal, and private parks, racetracks, and fairgrounds. Miscellaneous Lands N - Includes all lands which fail to meet the requirements of the above classes. 102- Major Categories of Land Classes The lands mapped can be grouped Into four major cate- gories: (l) irrigable lands, (2) urban lands, (3) recreational lands, and (4) miscellaneous lands, which are those lands which fail to meet the requirements of the first three land class cate- gories. Results of the land classification survey are shown on Plate 3, "Classification of Lands," Sheets 1 through 31. The totals of areas in each classification are listed in Table 11. Irrigable Lands Irrigable lands are grouped in appropriate classifica- tions according to their suitability for development under irrigated agriculture and their crop adaptability. Presently irrigated lands are included within these classifications, but urban lands and recreational lands are not classed as to irrlgability . The time element with respect to when the lands might be developed did not enter the determination, except that suitability for irrigated agri- culture was necessarily considered in light of present agricultural technology. There are many factors which Influence the suitability of land for irrigation development. Since soil characteristics and the physiography of the landscape are the most stable of these factors, they were the only ones considered in the survey in classifying lands as to their irrlgability. The characteristics of the soil were established by examination of road cuts, ditch banks, and the material from test holes, together with observations of the -103- Illustration 16 Example of land classification delineated on aerial photograph (See Table 11 page 106 for explanation of symbols used) -104- type and density of native vegetation and crops. Representative slopes throughout the area were measured with a clinometer. Other aspects such as those economic factors related to the production and marketing of climatically adapted crops, the location of lands with respect to a water supply, and climatic conditions were not considered In the basic classification. These latter factors are very Important in estimating the nature of future cropping patterns and practices and will be given due consideration when estimates are made of future water requirements. Urban Lands It is recognized that future urban expansion will encroach upon some of the Irrigable lands. The location and extent of this type of development is a function of many variables. Because this land classification survey Is an Inventory of relatively unchanging physical conditions, no attempt was made to locate the areas of urban encroachment. Therefore, only those lands devoted to urban uses in 1957 are designated as "urban" lands. The l80 acres of present urban lands in the vicinity of Lewiston, however, are an exception. They have been Included in recreational lands because Trinity and Lewiston Reservoirs now under construction make it obvious that their use in the future will be primarily for recreational activities. Recreational Lands Present trends indicate an expanding rate of use and demand for recreational facilities throughout the State. In view -105- z Z 3 c^y Q X Z O. < < _l (T = oO« ^^ (T «) UJ Z Q J; CD — I < *- ^ = I- < IE — ,!> — q: < (- oi q: I- 3 0> O O 2h OJ 'S w ^ t\j Icy fo S & 8 SSI8 8RJ s r s R S ^ rii S r- S § S 1° ^,sg 8, O p o « on o o oio o oiq ^° f.^ a°SS8°°3|3 8°8 ■SIS s s 8 SRIS S S 0\ -* H|iA \0 "^ S ^ 8 S a vS pop o OOP P P P O p O RSilS s°p ri§ ir\ oi o o o o o o q o 5^ I i3 I l^l§ R 3 8 -* oJ on R ir\ ir\ m HlrH a\oj o o o 8|8 ^m p p p s oTHlrn r .5 35 5 35 >» U f> > >» il II II il &I |l r r r r r t SB til 3 i >> u >, a: >, a, 1: I If -106- ^ ^-^^■^^^•v--: *•• Illustration 1? (left) Fishing on the Trinity River Illustration 18 (bottom) of these trends and the ever-Increasing population. It Is recognizee that there will be a demand for substantial land areas for recrea- tional purposes. This is particularly true of the mountainous regions where this type of development is expanding rather rapidly at the present time. Generally speaking, all mountainous lands are suitable for some recreational use such as hunting, fishing, and similar outdoor activities. However, for purposes of this survey, lands classified for recreational use were limited to those which are now, or may in the future be used Intensively for permanent and summer home tracts, camp and trailer sites, and parks outside of urban areas. These are lands requiring intensive water service. Primary considerations for classification of home tracts and camp and trailer sites were such physical factors as soil depth, slope, and rockiness; such aesthetic values as view, near- ness to lakes or streams, or density and type of forest canopy suitable for the respective uses; and the plans of United States and State forest officials. An important factor in location of camp and trailer sites is the availability of a water supply, but Isolation from existing roads did not influence site selection. There are no existing federal and state parks within the Trinity River Hydrographic Unit. Miscellaneous Lands Lands which failed to meet the requirements of the previously described irrigable, urban, and recreational classifi- cations amounted to approximately 1,870,000 acres or 98 percent of the area of the unit. -108- Illustration 19 Logging trucks near Hyampom Illustration 20 Hyampom Valley -109- CHAPTER V. SUMMARY The Trinity River Hydrographlc Unit comprises the entire watershed of the Trinity River, of which 2,556 square miles are In Trinity County and 4l3 square miles are In Humboldt County. The unit Is predominantly mountainous, varying In elevation from 305 feet above sea level at Weltchpec to 9^025 feet at Mount Eddy. Irrigable agricultural lands constitute only a small part of the total area. Almost 60 percent has been classified as commercial tlmberland by the United States Forest Service. The forest pro- ducts Industry has been the leading element of the Trinity Basin's economy since World War II. Water Use A survey was made of water uses supplied by diversion of surface water during 1957^ the object of which was to locate and obtain data with respect to all diversions of more than 10 acre-feet per year. Continuous or periodic measurements were made on approximately 70 percent of the 230 diversions located during the year of survey. The quantities of water diverted by these measured diversions are summarized as follows: -ill- Number of Number of Measured diversions diversions quantles diverted Primary use located 163 measured 139 (acre-feet) Irrigation 79,300 Mining 25 16 7,300 Industrial (lumber mills) 15 12 7,200 Domestic 11 4 1,600 Municipal 6 3 2,000 Power 9 8 37,200 Recreation (fish pond) 1 1 1,400 TOTALS 230 183 136,000 Most of these diversions are based on riparian rights and on approprlatlve rights established prior to enactment of the Water Commission Act of 19l4. Generally there are no official records of the riparian water rights. Many of the early approprlatlve rights ar not of record, since such rights could be established prior to 1914 merely by actual diversion and use of water. The basis of water rights for each diversion was determined insofar as possible. The Water Commission Act, now codified in Divisions 1 and 2 of the Water Code, requires formal applications for the appropria- tion of water. As of January 15, 1959, a total of 303 currently valid applications had been made under Water Commission Act provlsioni in the Trinity River Hydrographlc Unit. Permits or licenses had been granted for 277 of these appli- cations, 16 were pending with the State Water Rights Board, and 10 were Incomplete as of that date. Permits were granted on September 16 1959, for eight of the then pending applications which were for diversion and storage at Trinity Dam and Lewiston Dam. The total consumptive use of applied water during 1957 is estimated to have been 9,100 acre-feet of which 7,^00 acre-feet -112- were used for irrigation, 1,300 acre-feet for domestic and municipal purposes, and 400 acre-feet for industrial purposes in the pro- duction of lumber and plywood. Land Use A detailed land use survey was conducted in the Trinity River Hydrographic Unit during the spring of 1957. The areas of land devoted to present uses are summarized as follows: Use Area, in acres Agriculture Lands irrigated during 1957 3,880 Lands normally irrigated, but idle during 1957 600 Naturally high water table lands 3^0 Dry -farmed 6l0 5,430 Urban 1,600 Recreation 480 Subtotal 7,510 Native vegetation 1,892,690 Total, hydrographic unit 1,900,200 Approximately 30 percent of the irrigated acreage during 1957 was located within the predicted high-water line of Trinity Reservoir, then under construction; 25 percent was in Hayfork Valley, and the remaining 45 percent was in smaller valleys distributed throughout the unit. Figure 1 portrays the land use distribution in the Trinity River watershed. -113- Land Classification The land classification survey made for use In Bulletin Nos. 58 and 83 was used In this Investigation. However, additional data on classification of recreational lands have been Included along with some minor modifications to the Irrigable agricultural lands and a remapping of the present urban lands. The results of these surveys are summarized below: Classification Area, In acres Irrigable agricultural lands I9 520 Present urban lands, 1957 1 420 Recreational lands ^ wq Subtotal 02 510 Other lands 1,876,690 Total, hydrographlc unit 1,900,200 The irrigable agricultural lands, the present urban lands, and the recreational lands represent 1.0, 0.1, and 0.6 percent, respectively, of the total area of the unit. This distribution is portrayed in Figure 2. Approximately 43 percent of the irrigable agricultural lands are located in Hayfork Valley and 34 percent in Hoopa, Willow Creek, Burnt Ranch, and Middle Trinity Subunlts. Approximately 72 percent of the delineated recreational lands are located in the Trinity Reservoir Subunit. None of the agricultural lands located within the normal high-water line of Trinity and Lewlston Reser- voirs has been classified as Irrigable, but rather has been Included with "miscellaneous lands" which failed to meet the requirements of Irrigable, urban, and recreational classifications. -114- URBAN AND RECREATIONAL LANDS (0.1%) II- AGRICULTURAL LANDS (0.3%) Figure I 1957 LAND USE PRESENT URBAN LANDS, 1957 (0.1%) RECREATIONAL LANDS (0.6%) IP IRRIGABLE AGRICULTURAL LANDS (1.0%) Figurt 2 CLASSIFICATION OF LANDS -115- APPENDIX A STATEWIDE WATER flESOURCES AND WATER REQUIREMENTS PROGRAM A-1 APPENDIX A STATEWIDE WATER RESOURCES AND WATER REQUIREMENTS PROGRAM California's major water problem today Is that of develop- ment and delivery of supplemental water supplies to meet Increasing water requirements throughout the State. The problem Involves (l) the regulation of seasonal and cyclic fluctuation of streamflow to meet demand schedules In the areas of origin, and (2) the transmission of regulated surplus flows over long distances to areas of deficiency. The develojiment and long distance transfer of water Is currently accomplished by such major facilities as the Federal Central Valley Project and the Colorado River Aqueduct of The Metropolitan Water District of Southern California. However, such development and transfer will be considerably broadened In scope by the State Water Facilities. Consumptive water requirements of the State on a basln- wlde basis were estimated In State Water Resources Board Bulletin No. 2, "Water Utilization and Requirements of California," June 1955. However, to provide for local water needs while consider- ing specific export projects, more detailed Information must be made available on present and projected future water requirements of the areas In which the projects are to be built. This will necessitate the considerably more detailed collection and analysis of data on hydrology, land use and land capability, and economics. Recognizing that additional Information Is needed If the water needs of areas of origin are to be adequately protected in large-scale water development projects, the 1956 Legislature A-3 authorized an Investigation to determine the water resources and water requirements of the respective watersheds in the State. Tlj authorization is contained In Chapter 6l, Statutes of 1956 as amended by Chapter 2025, Statutes of 1959. This legislation is codified in Section 232 of the Water Code as follows: "232. The Legislature finds and declares that in providing for the full development and utilization of the water resources of this State it is necessary to obtain for consideration by the Legislature and the people, information as to the water which can be made available for exportation from the watersheds in which it originates without depriving those watersheds of water necessary for beneficial uses therein. To this end, the department is authorized and directed to con- duct investigations and hearings and to prepare find- ings therefrom and to report thereon to the Legislature at the earliest possible date with respect to the following matters: (a) The boundaries of the respective watersheds of the State and the quantities of water originating therein; (b) The quantities of water reasonably required for ultimate beneficial use in the respective watersheds; (c) The quantities of water, if any, available for export from the respective watersheds; (d) The areas which can be served by the water available for export from each watershed; and (e) The present use of water within each watershed together with the apparent claim of water right attached thereto, excluding individual uses of water Involving diversions of small quantities which, in the Judgment of the Director of Water Resources, are insufficient in the aggregate to materially affect the quantitative determina- tions Included in the report. "Before adopting any findings which are reported to the Legislature, the department shall hold public hearings after reasonable notice, at which all interested persons may be heard. " A-4 For purposes of this investigation, the State has been divided into twelve major hydrographlc areas. These areas, in turn, have been subdivided into hydrographlc units generally comprising watersheds of individual rivers. These watersheds will be field surveyed in some detail, and, where previous detailed studies have been made, the information will be brought up to date. Water resources and water requirements will be determined and reported in a bulletin for each of the hydrographlc areas. Since it requires many years to gather sufficient data to make adequate analyses of water resources and water requirements, and, in order to make the data on present land and water use available when they are most useful, surveys of land and water use will be made and published separately for each of the hydrographlc units. Bulletin No. 9^-2, "Land and Water Use in Trinity River Hydrographlc Unit," is the second of a series reporting the results of these surveys. At a future date, estimates, largely based on the land and water use surveys, will be made of quantities of water reasonably required for future beneficial uses in each watershed. The quantity of water potentially available for export from each watershed will be determined after allowances are made for the satisfaction of the local requirements and prior rights to divert water to other areas. For those watersheds in which no exportable water is available the water supply deficiency will be determined. These estimates will be published as they become available, in such forni as to make possible a county-by-county determination. The calculations of future water requirements will be based, in part, on predicted future land uses derived from land A-5 land classification surveys, economic studies, population forecasts, industrial and agricultural development, and recreational needs. Agricultural water requirements will be based on unit water use by the various predicted crop types; urban and recreational require- ments on per capita water use values j fish and wildlife requirements on minimum streamflow needed or on water demands for wildlife requirements on minimum streamflow needed or water demands for wildlife area; and industrial water requirements on measured water deliveries to various types and sizes of industries now existing. In forecasting future industrial development, water quality problems will be given full consideration. Water resources will be determined from records of all stream gaging stations, including new stations which were establishe< for this and other investigations of the department. The new statlois were generally constructed on streams which originate in the smaller watersheds for which runoff data are necessary but for which no data have been available. As a part of this investigation, four new stream gaging stations were added to the existing network of stations in the Trinity River Hydrographlc Unit. These stations were installed: Stream gaging station Date Installed Big Creek near Hayfork February 6, 1957 Browns Creek near Douglas City January 8, 1957 North Fork Trinity River at Helena January 24, 1957 Weaver Creek near Douglas City January 11, 1957 A- 6 APPENDIX B REPORTS ON RELATED INVESTIGATIONS AND OTHER REFERENCES B-1 APPENDIX B REPORTS ON RELATED INVESTIGATIONS AND OTHER REFERENCES California State Chamber of Commerce. "Economic Survey of California and its Counties." I958 California State Department of Natural Resources, Division of Mines. "Mineral Information Service Bulletin." Volumes 6-10. 1953-57. "Mineral Commodities of California." Bulletin I76. 1957. "Journal of Mines and Geology." Volume 46. I95O California State Department of Water Resources. "Northeastern Counties Investigation." Bulletin No. 58 June I96O. "State Water Right Applications for Unappropriated Water, Assignment Thereof, Reservations for Counties of Origin, and Other Related Matters." January 1959. "Klamath River Basin Investigation." Bulletin No. 83. i960. California State Water Resources Board. "Water Resources of California." Bulletin No. 1. 1951. "Water Utilization and Requirements of California." Bulletin No. 2. 1955 Conservation Commission of California. "Report of Conservation Commission of California." 1913 Cox, Isaac. "The Annals of Trinity County." I858 Coy, 0. C. "The Humboldt Bay Region, 1850-75." 1929 Trinity County Board of Education and James W. Bartlett. "Trinity County, California, Its Geography and a Summary of its History from May l845 to September I926." I926. Trinity County Historical Society. Yearbooks. I955-I958. United States Department of Agriculture, Forest Service. "Area and Ovmershlp of Forest Land in Trinity County." Forest Survey Release 9. April 1951. "Area and Ownership of Forest Land in Humboldt County." Forest Survey Release I6. November 1952. B-3 United States Department of Agriculture, Office of Experiment Station. "Irrigation Resources of Northern California and Their Utilization." Bulletin No. 254. 1913 United States Department of the Interior, Bureau of Reclamation. "Trinity River Division, Central Valley Project." Supplementar; Report. 195'4. United States Department of the Interior, Pacific Southwest Field Committee. "Natural Resource of Northwestern California.' Preliminary Reports. 1956. B-4 APPENDIX C LEGAL CONSIDERATIONS C-1 TABLE OF CONTENTS LEGAL CONSIDERATIONS California Water Rights C-3 Riparian Rights C-4 Approprlatlve Rights C-5 Ground Water Rights C-7 State Assistance C-8 Litigation Concerning Local Water Rights C-9 TABLES Table No . C-1 Applications to Appropriate Water in Trinity River Hydrographic Unit C-IC C-2 APPENDIX C LEGAL CONSIDERATIONS There are set forth in the following paragraphs brief general statements with respect to the California law of water rights to supplement and to provide a background for information on water rights contained in Chapter II. Also included is a tabulation of currently valid applications to appropriate water within Trinity 1 River Hydrographic Unit filed with the State Water Rights Board. California Water Rights All rights to water in California are usufructuary. They consist only in right to the beneficial use of the water. Water itself is subject to ownership only when it has been taken into actual possession. However, the owner of an usufructuary right is entitled to have the water in the surface streamflow to the point of his diversion, or -to his riparian lands, without the unlawful inter- ference by upstream diverters who have rights which are inferior to his. Riparian and appropriative rights to surface water are recognized in California. Riparian rights are paramount until lost or impaired by grant, condemnation or prescription. Correlative rights to ground water, also recognized in California, are analogous to the riparian rights to surface waters. All water rights, both surface and underground, are subject to the doctrine of reasonable use expressed in Section 3 of Article l4 of the State Constitution. This doctrine limits C-3 the rights to the quantity of water reasonably required for beneficial use and prohibits waste, unreasonable use, or unreasonabl methods of use or diversion. Riparian Rights Riparian rights are part and parcel of riparian lands, i.e., lands contiguous to a natural watercourse within a watershed. They extend only to the smallest tract, so situated, held within the continuous chain of ownership. Each riparian right is correlati'j with each and every other such right within the watershed. In the event of insufficient water for all, the available supply must be prorated, except that an upper riparian owner may take the whole supply if necessary for domestic use. Riparian rights extend to future reasonable requirements for beneficial use upon riparian lands. Riparian rights do not authorize use of water on non- riparian lands, nor do they permit the seasonal storage of water. They are not created by use nor are they lost by nonuse. They do not prevent temporary appropriation by others of water not presently needed on riparian lands. The rights may be severed or lost, in whole or in part, by grant or condemnation, and they cannot there- after be restored. A parcel of land loses its riparian right when separated from contact with a stream by conveyance, unless the right is specifically reserved by the grantor. Riparian rights cannot be transferred for use upon another parcel of land. A riparian right may also be lost by prescription. C-4 pi Riparian rights are superior to approprlatlve rights, except In the case of rights founded upon appropriations of water upon vacant public lands initiated before valid steps were taken to remove the riparian lands from the domain of the United States, regardless of whether the approprlatlve diversions and/or the lands they serve are upstream or downstream from the riparian lands. Approprlatlve Rights The miners of the early gold seeking period established the doctrine of approprlatlve water rights In California. Their procedure was based simply on beneficial use and required no recordation In establishing the right. The first procedure requir- ing recordation in perfecting an approprlatlve right was the Civil Code enactment of I872. This procedure, modified several times, was in use until the Water Commission Act became effective on December 19, 19l4. The oldest of the procedures to perfect an approprlatlve right required simply that a diversion be made and the water be put to beneficial use. The date of the right began with its beneficial use. The 1872 Civil Code procedure required that before a diversion of surface water could be made, a notice of intention describing the source of the water, the location of the proposed diversion, the amount to be diverted, the use and the place of use be posted at or near the place of proposed diversion. This notice was to be signed, witnessed, and a copy filed with the Recorder in the county in which the proposed diversion is located. The appro- prlatlve right thus initiated became perfected when the water was C-5 w put to beneficial use, but the right related back to the time the notice was posted. While the I872 Civil Code procedure was the firs; to require recordation. It was not an exclusive procedure In that an approprlatlve right could be perfected to the extent of beneflcla. use simply by diverting the water and making beneficial use of It. The Water Commission Act, on the other hand, established an exclusive procedure for the appropriation of water. This enact- ment requires that a permit be obtained from the State of California before water can be appropriated. The procedure outlined by the Water Commission Act, as now codified In the Water Code, requires that first an application to appropriate water be submitted to the State Water Rights Board. Upon the approval of the application, a permit Is Issued so that the applicant can construct the features necessary to put the water to beneficial use. When the project has been completed, an Inspection of It Is made and a license Is Issued, to the extent of beneficial use, provided the terms and conditions of the permit have been fulfilled. Once an approprlatlve water right has been Initiated, It must be diligently prosecuted to completion In order to maintain Its date of priority. While water may not be appropriated for a distant future use, a reasonable amount of time Is allowed to put the full amount of water to use within the original Intent of the application to appropriate water. A right to appropriate water Is lost by abandonment or continuous nonuse. In the case of an appropriation Initiated prior to 191^, the period of continuous nonuse Is five years, while under the Water Commission Act, or the Water Code, the period of continuous C-6 !t nonuse Is only three years. Domestic use of water is the highest use and Irrigation next highest use of water as provided In the I i Water Code. 1 Ground Water Rights The permit and license procedure established by the Water Commission Act applies only to streams and other bodies of surface water and to subterranean streams flowing through known and definite channels. Percolating ground water is therefore excluded and rights to its use are governed by judicial decisions rather than by statute. Ground waters are presumed to be percolating in the absence of evidence to the contrary. The owner of land overlying a ground water basin or stratum has, like the riparian owner, a paramount right to the reasonable beneficial use of the natural supply upon his overlying land, which right he holds in common with all other landowners similarly situated. Only surplus water in excess of reasonable requirements for beneficial use upon overlying lands is subject to appropriation for beneficial use upon other lands. Prescriptive rights to ground water may be acquired under the same circumstances as prescriptive rights to water of surface streams. Where ground water and surface water are Interconnected, one acting as a tributary to the other, both are treated as part of a common supply and users of water from either source are entitled to protection from substantial Injury as a result of use by others of water from the other source. Thus, an owner of land riparian to a stream may have his right to the use of water protected against c-7 Impairment by an appropriator of percolating ground water tributary to the stream and required for the maintenance and support of its flow. Likewise, where water from a stream percolates to a ground water basin or stratum, the owner of land overlying such ground water may be protected from an appropriation of water of the stream, if such use causes a substantial impairment of the ground water supply. As between riparian use of surface water and overlying use of ground water tributary to the stream, a sharing of the available water supply on the basis of reasonable beneficial use should be made. State Assistance Under provisions of the State Water Code, actions involvin, determinations of rights to the use of water brought in either state or federal courts may, at the court's discretion, be referred to the State Water Rights Board. Under provisions of Water Code Section 2000, the court may appoint the board to referee "any or all issues involved in the suit," or under Section 2001 it may limit the reference to "investigation of and report upon any or all physical facts involved." This reference procedure may be followed in suits involving either or both surface and ground waters. A simplified procedure is available for adjudication of rights to the use of water of streams, lakes, and other bodies of water, but the method excludes the determination of rights to take water from an underground supply other than from a subterranean stream flowing through known and definite channels. Water Code Sections 2500 to 2900 inclusive, authorize the initiation of such C-d a proceeding before the board. The board then makes an engineering Investigation and report, holds hearings, and prepares an order of determination which Is submitted to the court. After hearings, the court makes a final determination of the water rights. Court actions which Involve a determination of all the relative rights to the use of water of an entire stream or stream system and/or ground water basin afford a basis for distribution of water after decree under watermaster service. Water users may secure the services of the Department of Water Resources under Water Code Sections 4000 to 4407 Inclusive, in making distribution of the water to them according to their respective rights, as determined by the court. Litigation Concerning Local Water Rights There has been no major adjudication of water rights in the Trinity River Hydrographic Unit. Consequently, neither the State Water Rights Board nor any of its predecessor agencies has been involved in a court reference, and state watermaster service has not been established. Applications to appropriate water within the Trinity River Hydrographic Unit, filed with the State since 1914 and active on January I5, 1959* are summarized in Table C-1. 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I I 5 S 5 5 i 1 1 5 u u 8 no u 8 S § S S S ss s ■S 8 S g 3 5 5 ^ p^(^ 5 p. a SI SI 81 3; b; £ s s ^ i s e s g gs to « £ £ S g i i gS J J 5 h. r *> 9 ^ i ft t: ft ■3 3« 1^ 13 3 1. it t u ** 23 f ii s* S il * ft £ * 6 ft 1^ s =^6 as n. — - £ « tf) « CD « 3^ * 2 II 3: ) c u 9 ^g fc. 7. -3 ^r 1 ^^ 1 5' £ r 3 3 ■a A b Si 2 ^ > > ^ s ^ •0 H •» •A y* tft i? ^ ^ > > > 5 ^ I =•1 <»^ -* =1 g g i I i 8 8 I I S3 3 -C-22- O B i.cnm KEY TO NUMBERING SYSTEM ° ' t ■ _E 'Fl k/ /. - ^ 7 ' « '/ /o f DIVERSIONS SHOWN «RE HUMBEREO et ^ TOWNSHIP. RANCE AND SUBDIVISON Of SCCTION,*« DIVERSION llN/>2W-eiFI STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTMEHN BRANCH LAND AND WATER USE TRINITY RIVER HYOROGRAPHIC UNIT LAND AND WATER USE T 39 N. R6 - 9 W MDSaM 1957 SC*l.E OF FEEI JOOO O SOOO 40QQ WOO R 6E R 4 E R 5 E -^/■//j^s.^'^ms^^^- T 9 N 'C 3-^ iS^^k^^ii^^'aiM^Ad Snasi 3 of 3i Shi R 7 E ^xm^T R 8 E ft L'.^.gcv-, J. ::m cv- . ( mi / I 'k-vr llWt* COICTtlCtIM KEY TO NUMBERING SYSTEM ^^^SS^fL&^ ^il » c / ■ ■~L_ 'fi > K " ^ y ' » 7 / ' STATE OF CALIFORNI* THE RtSOUHCES AGENCY Of CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTMESN BRANCH LAND AND WATER USE TRINITY RIVER HYOROGRAPHIC UNIT LAND AND WATER USE T 9 N. H 4-8 E MBBM TjeN Shesl fl or 11 Shetis PLATE 2 1 - 28 r'-3 2(7 .^^ ,^ - ^^ r ? '^ r^^ — ,.. r - - —r — fi' 1 r— — 7»T , i' ' ' i .••■'! 9 ; II '*> i'^'' i" ^-'■r^r- -r-i—T--' — \ ^ "V''^" i ""'■M-^-"^""" ■ — -!'.-Y'^.-'-]' — -/' i-J"" -*~H ^ i-y^-r — I ~^s^j^ PrvEUtW MJUl « Oi — iH^ iimuiMGiwmTioi ■ POtEBioinE ^^ ^^r^ ai(mia«^c uNii BO -L — >, -a-i_ j- ^ TO NUMBERING SYSTEM ' ( ■ e *F1 ]'/ /_ " ^ / ' - '/ /o . DIVERSIONS SHOWM ADC NUUHERCD ST lowNSKip. naxGE "NO subO'visom of INDEX TO SHEETS LEGEND ^^^1 u><u(;iiTm LUDI lEiMCLt iqmtTEO BUT lOli M FALIO* >• 1UTU>i>l.L> iXIKlTEO MtDAUUIDt I "WE I D«i-'««0L»W1 HHH RtCKEinoui um /A^'^'t »E«"vow iiTiE* co«™uc nwi STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYOROGRAPHIC UNIT LAND AND WATER USE T38 N, R5 -lOW MDBSM 1957 R 6 E T a N r 5 r.i 3, S'-eeis Pl^TE 2 R 6 E ■■-A ^ Wv^ T71-,, )V i ' I • li .••■"") ( 9 I I' 'P f '' INDEX TO SHEETS DnfMKM cuiii. n oiiCh DIVOIIIM nfl ITRtlU UCI1E ll'TKM •iii^iXMPhic unir BOu>iD»'t LEGEND ^^^H LiNOt •(Cdvmt lull iMiutio* I unit I uMomcfiviMfawLiMiutKi* I wwE I iutuinu.ti«iHTj"' 1 >twunix*L u««i vM^ nfuiivoui unE« coaiDucTKw KEY TO NUMBERING SYSTEM . ' / ' =?^ ^ f - / a " STATE OF CALIFORNIA THE PESOUHCES AGENCY OF CALlFOONl* DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHtC UNIT LAND AND WATER USE T 37 N. HII -12 W MOaSM 1957 R 10 W R jy T 37 N R 5 W [J \ "\ — n^ i^ 1'- •1 r ^?LL ^^^^ tmj"ow»'«icnBw(iT«QiiiD« (NOEX TO SHEETS LEGEND ^^^H u.'SA nrnsmw, run. iniii •tUinOM UIDt* CMTIUCTim K^Y TO NUMBERING SYSTEM » = / (■ -^ ^ f " ;^ • DIVCnSIOMS SHOWN AAE NUMSEREO B' TOWMHiP. RtN« >N0 SuSDIVlSON or STATE OF CALirOBNI* THE RE50WRCCS AGENCY Of CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTmEHN ORANCM LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T 37 N. fi 5-10 W MOBSM 1957 SCAiE Of 'EEI ,000 20O0 *000 6000 Sitef 9 of 51 Sheetj PLiTE 2 R7E 7'7WMiW^ INDEX TO SHEETS OIViKIOI ' HlWOC"»ffllClUBWIT»i;i(0UIY unt mcfrviM putiM. ttmurm lANK IflMllT IMIUtED BUT rOU W F tFrrHEtTKMULA'lCII fpC'^-y}: •niirvoiii uw(« «iot»u:noii KEY TO NUMBERING SYSTEM ' f^ ■ -<^ -^ i^ /_ " ^ / ' " V /„ " STATE OF CALIFORNIA THE RESOUfiCeS ACtNCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINtTY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T 7 N, R4-eE HBSM 1957 ^ r^ ■^■■:'w^'ic^-"z^^^^rrTT^~^ - ''^%.:f^ 1"^ . . r . HE! L. El-'M A l_::vj:ii^JL_:-: !i Sfxtti PLiI£ J (®) ■m KEY ro NUWBERING SYSTEM (NOEX TO SMEEIS LEGENO c^ — c=:i ^.« 1 / DEPARTMENT OF WATER RESOURCES LAND AND WATEfl USE TRINITY RIVER MYDROGRAPMIC UNIT LAND AND WATER USE T 36N, R 10-12 f uDeew 1957 AUk R9W R8W TJ6N15 S^ect 10 of 31 Sleets PLATE 2 c r /' E fpl h 1 _ » ^ / ^ « '/ /« » OIUEflSIONS SHOWN ARE NUMBERED BT townsmif; range and subdivison of SECTION, (g DIVERSION }IN/i2W-2IF< LEGEND nECEtVING FULL IRRIUTim LANSt ftECtlVmC PARTUl IRHIUmN USIMLLY IRHISlrEO BUI (DU OR F«LLDt IM !»' MTUMUY IRNIdtTEO tClOOIUUIDS ^■^^H ORT-fARUED LANDt I WME [ UBBAJI UNOi [ NWE I RECREAtlONAl LAIOS >y7!^y^ REiEBVOIB UWM COWtBUCHOlr STATE OF CALIFORNIA THe RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T36 N. R 6 -9 W MDBaM 1957 SCALE Of FEET 2000 2000 4000 6000 r R 4 E T 6 N r Sieft N Qt 31 Sheets PLflTE 2 R 7 E R 8 E /^^r Irit- INDEX TO SHEETS LEGEND ixtim orvEniON OtvUHOICMIttWOITCH (KVHHOH «P| 5III!W.»a«H»riOII I tow ] IKOniKKWHrC UNIT SOUNDtllT LAW "iHIVIIIC rULl IWiUiiJn ui^o: ij3u«LL>i*i>i»i(OSi/Ti0ti a> ■ Piiriieiu'lWiMlTOKWXUMOl o'('-riit«ou*ioi (((•UriMAL lAKDS »t«»voi»uTOE«ro RtNCE BMD SUSDWISON OF SECTION, rg DIVERSION ]ii«/iZW-2^\ ■'.!■ *«''■ r^' mi:#r SC^i.i_i:/--a**=^ ■ ...■ ■._>_'*-_ INDEX TO SHEETS EY TO NUMBERING 5V3TEH • ^^\i■\ ■M h « • i ' ■ ■/ ' ■ Coo ...™,^ 1^] — ■aW^' DEPARTMENT OF WATER RESOURCES NOnTHEDN Bft'NCH LAND AND WATER USE TRINITY RIVER HYDR06RAPHIC UNIT LAND AND WATER USE T3aN, R lO-IE * KOaBU 1967 Sh»ei 16 a< 3i SMm BLBTC ; mpM^^^ ^ii^^«««^ ^^-^^.*«^ ^^ '^JJXJJ INDEX TO SHEETS [3 KEY TO ffUMSERING SYSTEM « ■ 1- -HI, \lv • ■ ■ • y ' ■ Tm£ OESOUBCES 4CENCT Of C»1.lfORM* DEPARTMENT OF WATER RESOURCES NOBTMEBN BRANCH LAND AND WATER USE TRtMTY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T 34N, R 7-9 * MDBaW 1957 R 4 E T 4 Ni 7 0' 31 sheets PlITE 2 ^^r^^^^^/^^rw -^ "V 'i/;/! ~-\f INOEK TO SHEETS KEf TO NUMBERING SYSTEM en — «:^^ ■ LAND ANO WATER USE TfllNITY RIVER HTDROGHAPMIC UNIT LAND AND WATER USE T 33N, R 10-12 w Moeaw 1957 ' li Sne*tt PLATE 2 Li: rOMNSHiP. RANGE BKO SueOIVISON Ql STAT£ OF CALIfOSNIA THE RESOURCES 4GENCT C CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T 33 N. R 7 - 9 w Moeau 957 R 4 E T 3 Sheet 20 of 3l Sheeis PLATE 2 R 7 E R 8 E 4C mc R«c j>7c i»t y TT 1 I JJUg- ^*"" "'ow ■»» «•■• RT*t ii«« *: y T ',tS / -w-4 ;-— U_ 1 ** 'j A "' J ^ p^l^. INDEX TO SHEETS LEGEND COAVITI' OIVEniON PUyP DIVERSION DrvERllON CUAI. OR OrTCH DtvEBSlOII PIPE STREAy UCING tTHnON POfERHOUJC HTDROOIAPHIC UNIT BOUNOUY HYCROGIWPHIC SUBUNFT BOUNOMY LARDS RECEIVIRC RIU. IRKIUTION NONE LANOtRECEIVDIGPAItTULimiGATION j LANOI IBUAUT IMICAira BUT lOli OR f AU.W IN 1ST NONE I MTURAariRSIMTIOieADOILMOI NONE [ OSY-FAR*0 LAHIK M LANDS RECREATIONAL UNDI ?^55 REJERVOIR UNDER CONTTRXnOll NONE URBAN \J KEY TO NUMBERtNG SYSTEM c fe /a E F 6 / M M L yT J DIVERSIONS SHOWN ARE NUMBERED Bt TOWNSHIP. RANGE AND SuBDlVISON OF SECTION, tg DIVERSION 3IN/I2W-2IFI STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T 3 N, R 4-8 E MBSM 1957 SCALE OF FEET 2OO0 2000 4000 _6000 il^'SI . j. 'li. ■'. \>'' /r ' / • HOif TO SH€ETS ESD U-™ — eg — — . KEY TO NUMeCRMG SYSTEM LAND AND WATER USE TRINITY RIVER HYDROCRAPHIC UNIT LAND AND WATER USE T SJlt. « 10-12 * UOBSM 1957 Sneei 22 ol ii Sheets PLSTE i R 6W ww^^Tw^rmw^^^^f'^^^^^^^: -4 ■V-i '11 •■rn : ! IB I 19 '! ..-I ,l> \ — i^-i— +■ 'M: tei-- E- ^^ fNDEK TO SHEETS LEGEND lOWWw U Wt CO«T»iC not KEY TO NUMBERING SVSTEM '""^ ■/ ^.-.■^■■i.,i.^ " = (' ■«*l h " ' / ' " y ' % MOWN IDE NUUBEBCO B TME RESOURCES 4C£NCr OF OLIFOBNI* DEPARTMENT OF WATER RESOURCES NORTHERN BRftNCH LAND AND WATER USE TRINITY RIVER MYOROGRAPHIC UNIT LAND AND WATER USE T32 N. « 7-9 w uoeaM 1957 11 ^3 ot 31 Snefil PLATE 2 1 JS§== W' life 7 z^- i-sri -i*k2-:^^^ KEY TO NUMBEBING SYSTEM 1 STATE OF CAUFOHNI* THE RESOURCES 4CENCT Qf CiLiFOHNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HVOROGRAPHIC UNIT LAND AND WATER USE T 2 N. B 6-8 E HBBM 1957 ^M^IMMk^.^: 7F _iji4- -f:^'- UL -l—r^'-r-f^. -^U.. INOEK TO SHEETS LEGEND -~-< I5D KEY ro NUM8EFHNG SVSTEM • ■ / r J-/ ■ ■; ■ ■/ ' • LAND AND WATER USE TRINITT RIVER HYOROGHAPHIC UNIT LAND AND WATER USE T 3l N. R 10-12 W MDBftM 1957 Sheet 25 of 3i Sfieeis PLATE 2 R 9 W "T"'""^"" ^^A'^ ^ \ R 8 W i5 r^ V \f'U lO T 31 N i:^ Df" J- E4 iS J Sfcu ofe rial t- X £Ua»i5-' y 2& .^^Bi^iiL^.__a». ^^. ^ ?«*.{, I,/ 1 '1 ", ¥ h> ■ i\ ;. i« '•^Tx ■ I ^ \ so ■■ .-..Ju- ""-iN T (f- t t-.. 1» - I 8»/ 1 :^^ .^^v*^ OrvOWWuWVLOltinC" "-t-' ti»E»iit«i«:TAn«i ^ ^^^^ MnilOOUMIC LWT MUWUII ^^ ~ KlTIJTCMPWCliaiJIlIWUilDM' INDEX 10 SHEETS LEGEND [^] ED GEO UWW JECErvwC fULL uWiiimn LMDI HCErvuK PUTUL imutKn ixnii uiijiur sniCArED mtr loif on c MTuuLir Miureo icuanMDt wtuuuas KEY TO NUMBERING SYSTEM H P ' Fl OlvEHSiONS SHCniia dAE NUMBEOEO a> TOW>IS> RBNGE AND SueOlviSON OF SECTION, tg DiWEOSiON MH'iZW-Ji* i STATE OF C*LirOBNI» TNE RESOURCES ACtNCY OF CALlFOBNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHiC UNIT LAND AND WATER USE T 51 N, R 7-9 W MDBQM 1957 f Sfieet 26 o( Ji Sheers PLATE S R 8 E -^'— I ■'^t^ -4 'r—l-l-- ■IV \,4' \'-- ir -.-j^ -;\|- ^-! ri rNDEX TO SHEETS OIVEAIWI CMIL W Diicn mtiuuGwcitiTiaii ( -KHt ] I ■" I LAXQl tECf'VIKC EUtl IMIUtlOK uinC! iKttiviirc w^iUL nmMiXw LAID! LEUtUT IIWt»TED SUT IDLE aa ( struaiiLL' iwuMTfl KEY TO NUUBERtNG SYSTEM ' C / (■ , E E±*! ^ " /' - STATE OF CAUFORNI* THE HESOUHCeS AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T I N. R 6-8 E HBaM 1957 R 12 W Sh««t ?7 of 31 snteis PLATE 2 R 10 W R 9 W INDEX TO SHEETS LEGEND «.„„»„,« 1^ uiwn '( ■ } ' ■ ■/ ' iMi otsouncts iciNCY o' c*i iro»Ni» DEPARTMENT OF WATER RESOURCES NOBTHEON BR4NCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE Tis.ae-OE HaaM T2S. RT-et H8ftM 1957 I 31 Sltili PL4TE 2 RI2W Y.T7:''^IWVrw;^ ' RIOW TE9N i -n INDEX TO SHEETS LEGEND so — . TH€ RESOUflCtS *GESCT OF CiLIFOnnl* DEPARTMENT OF WATER RESOURCES NOnTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT LAND AND WATER USE T 2»N. RIO- "2* MOBftM 1957 ilOW i(L2amri.iLlMiMi2S^^2Si^ ''^ ^ -^ [^;^^iz: _j_ ii ui.ij.4. ~.^, ! .i it" "S ^-,yy~i 1— r- ;:^ZL -.X' KEV TO NUMSER'NG SYSTEM I LEGEND c^ .^, — C=3 — .-, DEPAflTMENT OF WATER RESOURCES LAND AND WATER USE TRINITY RIVER HVOROGRAPHIC UNIT LAND AND WATER USE T2a N. B lO-ie * MOBBM 1957 Sn*fi 31 of 3i SS«*it PLATE Z T 27 N '^^''^<^^^^. 'i'l \' J i« \l IV -■•^-iV- — '-f . , 4"-^h>I. f — '"' — .-f ' j 'l , — — I V . , 1, I ^^^ !.___. , ■:^n,. -^'■'i^l w-j^T- INE3EK TO SHEETS I «»« I wm I MW I :»«1 I ■" I "•- KET TO NUMBEBING SYSTEM " ' f (■ >»v n " /' ' " y ' • K WC NUWCFKD ■' STATE OF- CALirOBNI* THE RESOURCES AOCNCT OF CkLIFORNIA DEPARTMENT OF WATER RESOURCES LAND AND WATER USE TRINITY RIVER HYDR06RAPHIC UNIT LAND AND WATER USE T 27M, S (0-12 W MDBaM 1957 STuii 1 of 51 Sri«ili PLATE 3 igiW'FW^ R 7 W R 6 W r-^ ,^ .-4i-4- INDEX TO SHEETS I lit I ni»mi«oiMil*iiii>»» I WW I MiTiiiienKiir I MM I ii([n.jaLJuJ^-iiiiAx~.L^L-iJ^^:.^tii-^JiJs&j:^ii. 2 of ii Sfiteit PLATE 5 STATE OF CALIFORNI* THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 39N. R 6-9 W MOBftM 1957 R 6 E T 9 N She«i 3 of 51 Sheert PLATE 3 R 9 W IN^ I T 38 N '£. %^ /it^'iiJw^iijL^.c:i^^L^iJiiLiliuiil^r2ilai^ R 8 W -I— I T— — V — <^ — )r:~vrT — — ^r— "^^ \y-^\y.y l1 ^ k •4^^ INDEX TO SHEETS LEGEND fs.y^ HYOWMtWtf Wll BOWOMY >^-^' HIWOWW.K WMIII »l»«' . ■- ;■ «E««w)r» line* Ctl«T»ocnoii 1' 1 onoTHLniK^iRtiauLf ukiu ■11 «)ITL T SLOPtRL m (MuUITnC IMKWi l-l tTHHtllWWUMIICMlf LIWI l"»l ^£«^u,a«u« -^^"^^^^^^^^k^^iSi^j-A^s^ ..L z STATE OF CALIFORNIA THE RESOURCeS AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS TseN. R s -10 w MoeaM I9f^7 SCiLE or FEET T 8 N ^.r^m~^^. i/^:/:V;|.y-i. y;?:-^- SheBi 5 o* il Sft«eii PLflTE R 6 E ■■■'■''1 r^Cx \o '^a-^'TT ■'STinv'nni'n:" R 7 E -s.)— ^ ^■^' ^:; — ^r^^mmW'^'~~T''W''' ij. -*J * I "^^^If? riiV^-EL ::\M^' ;■ „r .,,x-.[,,„/-.,l STATE OF CALIFORNIA THE RESOyfiCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 8 N. R 4-8 E HB8M 1957 Sh«et 6 of 31 Sheer* PLATE 3 MMfTB n^^. 1 ,, r-:» 'T, ;~ i - ^ f*"'^< IT -^^ ^_>f INDEX TO SHEETS ._J LEGEND ^^^ _ ,^ ^ K'WioMUPXiC Mil Bowwm ^ ^ ^^^ MYDBOCWMIC IMUHIT MUmMl' j^^^ IIEHINOI»D>iW» COWTItUCIlOU I wHt I swurHLXJiGiMicuLiuint I WW I ii(iPL» Roinc itiiiaau wnoi I KWE I MIHtKT VaWI UWK I "Wt I KECatAIKHIkULAKII STATE OF CALIFOfiNl* THE RE50UBCES AGENCY Of CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 37 N. R II -12 W MOBftM 1957 R 10 W .^iiiiti-^-^^^'""**'^-^''— -^- Sheet 7 of ii Sheeis PLATE 3 /» R 7 W '^^^W^'^^WW^yfTr^^^'^T^' -m^^/mc R 5 W ,r4f^,t!^r ¥S> ■■::'" c -R'4^^ ^■■>il V. ^^,^^"-, „i^, ,/ Lj Vi.l rV:. .-1(-.HS?> 1 \"\'\' "^v. ^n^-. INDEX TO SHEETS I OiJOTM LH«5 IMIOUli UIIK I^^^H GEITTl) ILDPiNIi W UNUIjlTIIICIRIIICASLE U I Hint I wiEiiKT unu LMOi STATE OF CALIFOHNI* THE RESOURCES ACENCV OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T37N, R 5 -10 W MOeSM 1957 R 5 E T r N r?{-:j?iii:.« ;^ y- ■ ^-y -^iKv^^^'.-^ Sheet 8 of ii Sleets PlATE I ^^•/^ HYIrilKO'lI'mc Hill BOUW"! -•s^^' HtD»W«"*iC SuWHir SlMJVMT ^^M «£ie WW MOM COWTBuC nOB I- - :\ woo™ linW««IMflU LAWK ■■1 sEPtru Jiowii: m uwuwiwc imicmie l»nk IS^I mi^n.o««,™«BLEL>«> ^M i^H ^M^UWi^U.^ STATE OF CALIFOBNI* TME RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 7 N. R 4-8 E HBSM 1957 ' y^ f^.^ ^j=:.>)- .) I^J'",.^' ■■'■ ■■■" "*""*' "''■ ' '■ ■"■' ' ''in II 9 ol Si Sh**i( PLAIE 3 P / / ^f4'^-^-^ X-i \ H 1 ■-^^^ ayKTfT ■ '^^^-s^'Yc^, < -^' ^ ■..•A' :^^.' uM^i-z- HE ' U ^ ^ >st >\ T , R ■ I , N I ' T \:: ^1, -Ll INDEX TO SHEETS TM£ BESOUBCtS 4C.ENCY OF C»LI*OBNI* DEPARTMENT OF WATER RESOURCES NORTHERN snaNCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 3C N. R lO-IZ W H068M 1957 R 9 W y ^:.r-im \ -F7rmm^0llMl^^^i R 8 W T 36 1_: Sh«ti 10 of 31 Sheois PLATE 3 •4( BSE RfiE R 7 W R 6 W P"^^^ k-^'S- ■■?* ">"• *"r— ' ] ! V I soV I I E j « I « u INDEX TO SHEETS ><'DI!OC>t*<>)SLIKCK(UNDUUITImc tusmrrr sdimim* KEtEirVOn) UNDEft co«TitucnoN SHNTH LYING IKRIUBLE lANDS CENILI ILWIMO 0* UNCUUTINC UtRttUU l> ItEEt-LT now KG I Ml GABLE WHDI nUtUT UDBU UkNDI flEOIEAnaML LAW STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHEflN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 6N, R3-8 E MBBM 1957 SCI 200C I li o( Si ShitH PLfilE 1 R 12 W N ■'^ -- A- tj -R . Ni , ^,T ":,.\' -i^^iMji^^i^^E ;r-:^''gD'^a ^'T'^^rnrrpi;^^ K''"r''«tnp- ,ia; ,i7 i..>4--,w,:-;- H_ £.: ,U, EI- . N _A. --.-"^-.Ti- ,---;^^'' ^'.v^!: ''<^'--i' ^'->^ ^v- •1.4'i. i \*-^- I .>,^_^^ — ^j -- .■- o"-_j "^' .6 Jl- 4 — '1— l.-!.'-d 2ll I . ,..,. ^rJ I INDEX TO SHEETS [3] »», LAND AND WATER USE TRINITY RIVER HrDROGRAPHIC UNIT CLASSIFICATION OF LANDS T J5 M. « 10-12 « MOBSM 1957 5"i«t I) ot )i Srioii PLBIE 3 'j^-^T^7r5;:^sSsfeSiir' 1: t .. THt RCSOUnCCS aCCNCT OF ClLIFORNia DEPARTMENT OF WATER RESOURCES LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 35 >«, F) 7 ' 9 « UDBftM 1957 R 4 E R6E T 5 N Shaoi 14 of 31 Shells PLATE 3 vr- R7E -%-A '■<^^4dei^)ki' tn^^iicik 'W&^K^^^^^B R 8E '^'tWJ^ • ■■31^T''^~~'r^ -^^ — .-r^^n-—^ :-^^, ^ \ "■^ m^jW :J^^^A ■inf"; -^ T~-* /■ ' «5y.lert Fiat !■ ., j ; "W^ '^A^^r' ai^:_^i^_ ^M&^^^i^MLi.M!^^^wMjLM^ t^W-'Miil-t-----r? A-'G"" L _J. ■ ' I il-^ lA ' ^ 'ill 9 I 10 .' J ----- 1 t f^ ^::t7 iL^ 'i^-J _ , < 1"""'^ /'■; I f ' J E -M- INDEX TO SHEETS LEGEND I "■' I HrOniX.fl*>'HIC UMT BOUNDM* M IS af 31 ShMii <>LATE S ^l R 12 W ^?^' iPi b; BURNT ^2:^^i:li:_Jli^_ ^ I -X\' V a- _-_^ ?^'' y' ^' V'''ij=;*;-^ ^;?^''f^T["'''~^'^^^^(Pj'^^''/''-';S^^^^^^^^ "" E. LENA y ■V k l^/^i^L^^ . /" w e: a v" / ^.^^ i^tX^ ■ o ■■"^'■-■,6;: ."■£;;■ k-^' "'^-^ ■:.--ai ,/' 'J INDEX TO SHEETS OEPARTMENT OF WATER RESOURCES LAND AND WATER USE THINITy RIVER HYOROGRAPHIC UNIT CLASSIFICATrON OF LANDS il S^ftH PL6IE 5 _.j;. _]__;__.. J^l ' V. I 1.IK.. rf-t-L— L- !"■■■ ii , ■-nrf— ) ^ :_4_ — -— \fn ■- 1 I- — i^wJ - - - INDEX TO SHEETS C=r] USD STATE OF CALIPORNt* THE BE50UBCES iCtNCT Of CaLiFOCKi* DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 34 N. fi 7-9 W MOBSM 1957 R 4 E R 6E k^ak^S^^t&;2^^^__L 7 of 31 Sheers PLATE 3 I SI Shutt PLiTC J .^^fw^: fci;:^ \m-:,--/ U R N T R A ^4 c '-.y-t '"'k. V sec;-. v \ -IhH, A Y F Cj R K^ i- O R E C- K :Vv.ife^.:iM-- /"-;.'- r' y. y'^ / L: T \) a \ H A Y;'F CD P=! K V A UUE y y K ,^ T ',:i jj i>-. .^.: H E M A , ^.',,5iUBi^:^ ,£ ^AT -v:'S^^ V 'w E A-v ef^tsv ;-s^^^ \;' \_ V M 1, D O L- I&, 'T ^R I (si ' 'l T Yf/^'^'j .Mim r /' :^ r--~-v+— fir -^ iK--r -^ "I 1/ ^H T"t"' — tr- _-4 — ^j; INDEX TO SHEETS ^ -'U._>f LAND AND WATER USE TRINITY RIVER HYDROGRAPHrC UNIT CLASSIFICATION OF LANDS T 33H, R 10-12 W HOe«M 1957 c Sheet 19 of Ji SheeU PLATE 3 R 9 W R 7 W T 33 N ¥. ^^, I- l\ 1 I -*"T "L INDEX TO SHEETS LEGEND .^^^^ SIJtfmWIllBE-NIBTIUtrNll. IHXini DIK lOIUlLf UtKDt IT Ed I llQfTK IWiCMLE ludi CD STATE or CALIFORNIA THE ReSOURCES ACtNCT Of CALlFOHNiA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 33 N, H 7-9 W MOSSM 1957 R 4 E R 6 E Sheet 20 ol 3l Sh««ls PLATE 3 ■4C mi ■■£ R 7 E R 8 E INDEX TO SHEETS LEGEND ^^ ^^^^ ITrtlROCMWIIC UllI BOUNOAmr W* ^^^^^ HYOROCRAPWC iUBumr 60UWMV f^^^^ DUEKVDIRUHOEHCOWtRUCIION p 1 SyOOTH LYING IR»(C*BLf LANK ^^^1 GEHTLT SLCflNG M UNOULtllNC IRRHIAeU LAN« |^28M ITEEPLY JLOPINC IRRIGULI LDNDS I WME I MEIET URBM UHB ^^^H RECNEAnONIkL UtNDI STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 3 N, R 4-8 E HBaM 1957 II ;ior il S^MH BLATE J r^^'T^^vT " ^ ^^ R 12 W H 4 y F O R K \ -- SiWii , real ^ R e: e k^ \ 1 fhornpsor, peJ^k / R II W X- -'^. " Y F R . K V A U_ ^ aA .li_L_LiiL '..^i^ite ^'^ N ROW /. y - t' 13 v\ -rr. -^V- - -■( /-. - TRINITY m, i3 \ -\ A ^n^j.:^ X. . f.TTr.t. t.,.- -u - INDEK TO SHEETS I s DEPARTMENT OF WATER RESOURCES NoRTncnH enANCH LAND AND WATER USE TRINITV RIVER HVDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 32N, R 10-12 W MOaaM 1957 Sheer 22 of 3i Steels PLfiTE 3 R 9 W R 8 W I I r-. 27 ^ ewtr S*. ^-s.... 26 _ - -v^-r^^^AU --'^ ,i S5 _. ."^r ...1 , i/l !'X -f Tjf-' ,.-4 . M! ig^^-i INDEX TO SHEETS LEGEND CZI «lu«voi)i unort coBnuctm ^^^H ';tiiTt.i iLOfrai OR uKmi^nnc 'RRKUBle uixin [ ■out I nfEif iio*iw iMiotit wwi I WW! I nifU»IWSJMU"OI ^^^1 lECIKTIOUlLUOl STATE OF CALIFORNIA Tm£ resources AGENCV of CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 32 N. R 7-9 W MDB6M 1957 ShMl Zi ot 31 Sh«ns PLiTE J ':s:::s=F^'~'^~ R»n£h-" ■A 3')" ;::f"i>^' :vfe, W ./-'i 7 l-tAYFO kX' ! p '"■'' ;:..;4 IS ' h V, r ^. If 1 ^ r-i^ I Lt-J INDEX TO SHEETS HTtMOCUMic tMimn so ittEPiT iionac miGUU uiws I Mni I nooiMuiWKxtMiimra ^^^H CEVTir tlOf IK Oft UWUOITniG IMIGULE IMOS I ■" I I "°"t ] KEctMnOWL UUDS STATE OF CALIFORNIA THE HESOUHCCS ACENCV OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 31 N, R 7-9 W MDBaM 1957 SCALt Of FEET 2000 O •000 6000 r S^e*l 26 of 31 Sheet* PLATE 3 R 6E R 8 E LEGEND TTWiwuwflC iwt KKHOur HiDKKiuptiic neuuT kuwu* ot j£ihtoni uwE* cwsTiiuCTiw BOOTH LtHC IIMIU8U IAMB (XNTiT myvK M iMiuijtTiac; imusii uun iT[En.r nDpnc um^MLi uum nrEiEVT iMUD uuss KOtUTIOMl. UUOt STATE OF CALIFORNIA THE RESOURCES AGENCY OF CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T I N. R 6-8 E MSSM 1957 R 12 W T 30N Shed 27 of 51 Sheet* PLftTE 5 R 10 W R 9 W '^SiKM^^mi^^m^^"^ INDEX TO SHEETS LEGEND ^^ ^^^ HiDHOr.dPHiC Hilt eomiOiHT •k ^^ ^^ htDWMIUPhk: IUBU«II mu««t I Wt I ITEtm H.Cft«0 IWIWLi l>Wi I WWt I FUE^tKT URBM LANDl STATE OF CALIFOHNI* TM£ RESOURCES AGENCY OP CALIFORNIA DEPARTMENT OF WATER RESOURCES NORTMEBN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPHIC UNIT CLASSIFICATION OF LANDS T 30N. R 9-12 W MDeaM 1957 SCAlt OF FEET f 31 SnseH PLftTE 3 'U:.. R 8E m^^^ f^-^/^JAX^-'! ,3,pm-^^i ' ; B«-f" ■ 25 .-T > __- 3S i^- ;ti5»fcf'^K IB < INDEX TO SHEETS SD STATE OF ciuronNi* IMt HESOUBCES iCENCT OF C »LlFOflNI» DEPARTMENT OF WATER RESOURCES NORTHERN BRANCH LAND AND WATER USE TRINITY RIVER HYDROGRAPMIC UNIT CLASSIFICATION OF LANDS T I S R 6- 8 E HeSH. T 2 5 R 7 • as HB SM 1957 Sh»e' 29 o( Ji Sh»«U PLATE ) SwfSS •"> - V -- ! I I'l-k •■i.T( ->- V^--V) INDEX ro SHEETS US ^ STATE OF CALIFORNIA THE RESOURCES ACENCV Or CALIFORNIA DEPARTMENT OF WATER RESOURCES LAND AND WATER USE TRINITY RIVER HYOROGRAPHIC UNIT CLASSIFICATION OF LANDS T 29 N, fl 10-12 « MDBSM 1957 Sntti 30 o< SI 5h«(U PL'TE i R 12 W ■"zn^"??l^ R II W ^ R 10 W ^^-^^ ■^^ - ^(,^ > ^ .i F ^