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Dwain C. Tosch <br /> Civil Engineer July 20 , 1992 <br /> CE #14644 <br /> 1229 Goldenoak Way <br /> Stockton, CA 95209 <br /> Phone: (209) 478-4606 <br /> San Joaquin County Local Health District <br /> Enviromental Health Division <br /> Subject : Soil Suitability Study : Parcel Map No . MS-92-94 <br /> Submitted for your review are the results of a Soil <br /> Suitability Study on the Hiram Sibley and Mary Rosa <br /> property located at 18143 Mac Arthur Drive, Tracy , CA. <br /> Existing Septic Systems <br /> Existing San Joaquin County records were reviewed for <br /> the area in the immediate vicinity of the subject property . <br /> No permits were found for any of the properties . <br /> Existing Use <br /> There are two residences and a storage building on <br /> Parcel 1 . <br /> Parcel 2 is in alfalfa . <br /> There are no wells on either parcel . <br /> Percolation Tests <br /> Two percolation tests were performed in accordance <br /> with the percolation tests procedures outlined in the <br /> "Manual Septic Tank Practice" published by the U. S . <br /> Department of Health, Education and Welfare and per <br /> requirements for the San Joaquin County Local Health <br /> District . <br /> On July 14 and 15 , 1992 , two percolation tests were <br /> performed by me on the above referenced property in <br /> conformance with the San Joaquin County Ordinance <br /> No. 549 . The approximate location of the test holes <br /> are shown on the accompanying Detail Map. <br /> A soil profile was performed and water was encountered <br /> at 6 ' 8" . <br />