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G & L <br /> ENGINEERING & DRAFTING SERVICES <br /> 551 N. HUNTER STREET • SUITE 1 • SfOCKTON, CA 95202 • (209) 941-8727 <br /> December 9 , 1986 <br /> San Joaquin Local Health Dist . <br /> Environmental Health <br /> 1601 E. Hazelton Ave. <br /> Stockton, Ca 95205 <br /> Re: Septic System, APN 067-270-06 <br /> Dear Sirs: <br /> Enclosed please find a copy of our proposed design of the septic system <br /> for the subject property. In addition to the system design, I have <br /> included the results of a profile study of the leach field area. This <br /> study showed a permeable topsoil layer 2 feet thick over a thick layer of <br /> hard, tight clay or hardpan. The profile holes were stopped at a depth <br /> of 4 feet. <br /> We are recommending using a 1200 gallon septic tank with 3- 100 foot <br /> leach lines. The trench dimensions are 2 feet wide by 2 feet deep <br /> with a 4" pipe 1 foot above the bottom covered with 2" of rock. <br /> If there are any questions, please call our office. <br /> Sincerely, <br /> 1. <br /> QQ <br /> Dean G. Gilman <br /> RCE 33033 <br />