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Book Appraisal of Ground water Resources in the San Antonio Creek Valley  Santa Barbara County  California

Download or read book Appraisal of Ground water Resources in the San Antonio Creek Valley Santa Barbara County California written by C. B. Hutchinson and published by . This book was released on 1980 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nearly threefold increase in demand for water in the 154-square-mile San Antonio Creek valley in California during the period 1958-77 has increased the potential for overdraft on the ground-water basin. The hydrologic budget for this period showed a perennial yield of about 9,800 acre-feet per year and an annual ground-water discharge of about 11,400 acre-feet per year, comprising net pumpage of 7,100 acre-feet, phreatophyte evapotranspiration of 3,000 acre-feet, and base streamflow of 1 ,300 acre-feet. The base flow in San Antonio Creek could diminish to zero when net pumpage reaches 13,500 acre-feet per year. The environmentally sensitive marshland area of Barka Slough may then become stressed as water normally lost through evapotranspiration is captured by pumpage. The aquifer consists of alluvial valley fill that ranges in thickness from 0 to 3,500 feet. Ground water moves seaward from recharge areas along mountain fronts to a consolidated rock barrier about 5 miles east of the Pacific coast. Upwelling of ground water just east of the barrier has resulted in the 550-acre Barka Slough. Transmissivity of the aquifer ranges from 2,600 to 34,000 feet squared per day, with the lowest values occurring in the central part of the valley where the aquifer is thickest but probably finer grained. The salinity problems are increasing in the agricultural parts of the valley, which is east of the barrier. West of the barrier, stream and ground-water quality is poor, owing to seepage of saline water from the marine shale that underlies the area at shallow depths. A proposed basinwide monitoring program includes 17 water-level sites, 12 water-quality sampling sites, 3 streamflow measuring sites, and periodic infrared aerial photography of Barka Slough. A computer model of the ground-water flow system could be developed to assess the impact of various water-management alternatives.

Book Selected Water Resources Abstracts

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1986 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Open file Report

Download or read book Open file Report written by and published by . This book was released on 1968 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monthly Catalogue  United States Public Documents

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1982 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Space Shuttle Program  Vandenberg Air Force Base  AFB

Download or read book Space Shuttle Program Vandenberg Air Force Base AFB written by and published by . This book was released on 1978 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Geological Survey Circular

Download or read book Geological Survey Circular written by and published by . This book was released on 1982 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Publications of the Geological Survey

Download or read book Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1948 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Publications of the U S  Geological Survey  1971 1981

Download or read book Publications of the U S Geological Survey 1971 1981 written by and published by . This book was released on 1986 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Geological Survey Water supply Paper

Download or read book Geological Survey Water supply Paper written by and published by . This book was released on 1968 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book New Publications of the U S  Geological Survey

Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 1985 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: