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I <br /> knKLE IN FT '.ELDER <br /> (S <br /> " File No. 20-3551-01 RE <br /> June 26, 1992 <br /> J U N 2 9 1992 <br /> Mr. Bert Sandman ENVIRONMENTAL. HEALTH <br /> c/o A. Teichert & son, Inc. PERMIT/SERVICES <br /> P.O. Box 15002 <br /> 4 Sacramento, CA 95351 <br /> Subject: ADDENDUM TO SEPTIC SYSTEM SUITABILITY STUDY <br /> REPORT DATED JANUARY 27, 1992 SCPANNED <br /> SUBDIVISION ON NORTH CLEMENTS ROAD <br /> SAN JOAQUIN COUNTY, CALIFORNIA <br /> Dear Mr. Sandman: <br /> 4 <br /> This letter addresses several questions from Mr. James Miller with <br /> San Joaquin County Environmental Health regarding the referenced <br /> septic system suitability study report. Reference is also made to <br /> our report dated May 26, 1992, which was prepared for the subject <br /> project. <br /> Our responses to Mr. Miller' s questions are as follows: <br /> I We understand that the site is surrounded by pasture <br /> • on all four sides, which has been the case for as <br /> long as Bert 'can remember. The site has been used <br /> strictly as pasture for the last three years. Prior <br /> to the last three years, portions of the site <br /> contained vineyards and olive orchards. <br /> • The percolation tests were performed on January 21 <br /> and 22 , 1992 . The test holes were presoaked per <br /> County guidelines the days before testing (January <br /> 20 and 21, 1992, respectively) and were left to soak <br /> overnight, <br /> • As noted in Table I on page 3 of our January 27, <br /> 1992 report, only one 3-foot deep test passed, and <br /> it just met the minimum percolation rate acceptable <br /> by the County for standard leach lines. The deeper <br /> tests produced significantly faster results. <br /> Therefore, although one 3-foot deep test did pass, <br /> it is our opinion that septic systems at- the site <br /> will likely have to be designed using sump pits, <br /> extending to minimum depths of approximately 8 to 10 <br /> feet. Once the remainder of the lots are tested, <br /> the required depths of the sump pits can be <br /> determined. <br /> lZ3 a { Mydt 'Stei,KLE]Rff bPsereStockton, CA 95205 (209) 948-1343 <br />