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�D'E R SD NEIL C .1 =RSON & ASSOC., INC. <br /> P .�, GEOTECHNICAL StRVICES-ENGINEERING LABORATORIES 8026 LorraineAve., Suite 214 <br /> Stockton, California 95210 <br /> D "' (209) 472-1091 <br /> p ti FAX: (209) 472-1093 <br /> 9sS o G♦ <br /> P <br /> October 4, 1993 <br /> Ester Hayward <br /> c/o Geo Hayward <br /> 1364 Cerro Verde MT Fri-K San Jose, CA 95120 <br /> Subject: Deep Pit Percolation Tests1993 <br /> Hayward Property , <br /> 3890 E Barron Rd t� <br /> Acampo, California - <br /> Our Job #: S9347 <br /> Dear Ms. Hayward: <br /> As per our proposal we have completed a deep pit percolation <br /> test on the proposed Parcel 1 at the subject property. During the <br /> performance of the test it was indicated that two test would be <br /> required so consequently a second test was performed adjacent to <br /> the existing leach field on the Designated Remainder parcel . This <br /> letter presents the results of our tests. <br /> For approximate locations of the tests please see the attached <br /> location map. Locations were determined by pacing so consequently <br /> accuracy can only, .be assumed so far as this method warrants. <br /> Test holes were drilled with a truck mounted powered drill rig <br /> utilizing 6 inch auger. Test holes were logged by a representative <br /> from our office. A summary of the soils encountered at each of the <br /> test holes is attached. At test location 1 (PT-1 ) an initial 25 <br /> foot deep test hole was drilled in the search for an adequate <br /> percolating stratum. The most favorable stratum was a clayey sandy <br /> silt stratum encountered from a depth of 8 to 15 feet. A second <br /> test hole was drilled at this location to a depth of 10 feet for <br /> use in performing the percolation test. At test location 2 (PT-2 ) <br /> a test hole was drilled to a depth of 9 . 5 feet, which was into the <br /> clayey sandy silt stratum, for use in performing the percolation <br /> test. <br /> Two inches of gravel was placed in the bottom of each test <br /> hole. Both holes were filled with water 24 hours prior to running <br /> the tests. The last half hour of the tests readings were witnessed <br /> by a county health official and the test data obtained is attached. <br /> A summary of the test results is presented next: <br /> EXJ' H I "Esk I T 4 <br />