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f <br />7�3 COUNTY CENTER III COURT <br />M(UDLSTO, CALIFORNIA 95355 <br />May 25, 1.976 <br />1�1 <br />COOPERATIVE <br />UNIVERSITY OF CALIFORNIA <br />STANISLAUS COUNTY <br />I <br />�; ,a <br />trl► <br />1 <br />Mr. William J. Ward `, lei(Jil'&'•a <br />San Joaquin County Surveyor' <br />Li <br />P. 0. Box 1810 <br />StUekLuii, Calilorniu 95201 <br />At -London. Mr. liuljurl;ahrutnuk, PUJAILy CUMILy burvuyur <br />Attachment No. 2 <br />SCENIC DRIVE AND OAKDALE ROAD <br />TELEPHONE 526-6654 <br />Thls letter is a follow-up to our conversation of May 24, 1976, concerning <br />soils developed into orchards in Stanislaus County. There are about 20,000 <br />acres of trees (almonds) and grapes in eastern Stanislaus County developed <br />mostly upon Whitney and Rocklin soils, <br />These orchards and vineyards were planted in the early 1960s. The oldest <br />are 12 to 13 years old. The soils are 2 to 4 feet of sandy loam, quite <br />alupinv, underlain by softly coasulidated sediments. These softly consolidated <br />materials have been shattered by subtioiling, and permanent sprinklers in the <br />main havC been used to irrigate: these rolling lands. The oldest of these <br />orchards and vineyards are just maturing, We believe they will be moderately <br />long-lived, <br />The soils in eastern San Joaquin County (Qarvey Lane) are San Joaquin, Ramona <br />and Rocklin sandy loams. They have 1 to 3 feet of sandy loam, 2 to 12 inches <br />of clay and a medium consolidated layer at 2 to 4 feet. Because of the clay <br />layer, we have not recommended these soils be developed for orchards and <br />vineyards. We have suggested experiments with subsoilers and slip -plows, but <br />there is significant doubt that the San Joaquin and Ramona soils of San Joaquin <br />County will support long-lived orchard or vineyard crops. <br />Also, the cost of subsoiling (ripping) and permanent sprinklers has inflated <br />considerably in the last 2 to 5 years, causing these expensive developments to <br />slow down considerably. This is in addition to the grape and almond economic <br />outlook, A new "Irrigation Cost Study" is included to show 1976 development <br />costs. <br />Sincerely, <br />J. L. Muyur / <br />Area Suil & Water Specialist <br />JLM: hmv Enclosures <br />cccm Win Lawson, County Director, San Joaquin County <br />Ih♦ U,,,►rert, ul Culil.rniu'e hyiicullurul f .un►iw I'ruyrurnt ore GrGilul,le tG ul� w 11—ul reynrd ro rGc®, aulur, r ul until tiny r, <br />r. „i•. .in,.tr,n ri• .re •r�i ,r <br />Ivi � r •. i f � .qr nr <br />I � (",•,� nl Ap �rl�' � � �� i (• .,'!) i �� �' N�� (, Ar�� ti) �Mrilutti,i�, n,.� Itni.•rurr e� L. rrli �„nuN sn.•r•rr nr„V_ <br />