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a <br /> I <br /> k'4 KLEINFELDER <br /> An employee owned company <br /> File No. 17284.G01 <br /> July 10, 2002 <br /> Mr. Richard Guerrero <br /> k Golden Valley Roofing Company, Inc. <br /> PO Box 30922 <br /> Stockton, CA 95213 <br /> l <br /> Subject: SOILS SUITABILITY AND NITRATE LOADING STUDY <br /> 3540 EAST CARPENTER ROAD <br /> STOCKTON, CALIFORNIA <br /> Dear Mr. Guerrero: <br /> Kleinfeider is pleased to present the results of our soil suitability and nitrate loading study for a <br /> i proposed facility to be located at 3540 East Carpenter Road in Stockton, California. The purpose <br /> of our study was to determine the suitability of the property for septic tank usage. The study was <br /> performed in general accordance to the requirements of Section 9-10100© of San Joaquin <br /> County Ordinance. The following includes background information regarding the proposed <br /> development, present use of the site, and the groundwater depth in the project area. In addition, <br /> discussions regarding our investigative procedures, the site conditions encountered during our <br /> field exploration, and the results of percolation tests are presented. Finally, the results of our <br /> nitrate loading calculations and project limitations are provided. <br /> `r <br /> PROPOSED DEVELOPMENT <br /> On a preliminary basis, we understand the subject 2.26-acre project site will contain three li ht <br /> commercial/warehouse buildings. The site is currently vacant. According to you, the buildings <br /> j will have a total of about 8 to 12 a to ees, with about 5 to 8 of those employees being field <br /> i personnel and usually not on site. None oft e buildings will have cafeteria facilities inside. At <br /> your request, two locations were tested for suitability for se tic tank usage due to uncertainty of <br /> the placement of the leach field. <br /> We anticipate that waste disposal for the buildings will be provided by an individual on-site <br /> sewage disposal system consisting of a septic tank/leach trench sewage disposal system. <br /> GROUNDWATER DEPTH <br /> During the time of our investigation, groundwater was not encountered. Lines of Equal Depth to <br /> Groundwater contour maps published in groundwater reports by the San Joaquin County Flood <br /> cad 'P9 <br /> 17284.GO1/ST02R203i y 1 qU l July 10,2002 <br /> ©2002 Kleinfelder,Inc. ; a $ Page 1 of <br /> KLEINFELDER 2825 East Myrtle Street,Stockton,CA 95205-4794 ( 02 9)948-1345 (209)948-0621 fax 0--f <br /> +1 <br /> I <br />