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"'y <br /> 109 4 3 s• Ar( <br /> I GEOTECHNICAL <br /> NEIL O. ANDERSON ENVIRONMENTAL <br /> AND ASSOC 1 A T E S INSPECTIONS a TESTING <br /> LABORATORY SERVICES <br /> POOL ENGINEERING <br /> POST TENSION DESIGN <br /> July 31, 2007 <br /> F-q 0_1: tr�� 7 D <br /> Mr. Bob Cooney, Project Manager l] <br /> Central Valley Baptist Church koI; u Z x.007 <br /> 520 North Union Road <br /> Manteca, CA 95336 E�iVlhUivi�'I:Ni EiEALTIi <br /> PEWITISERVIGES <br /> Subject: Engineered Septic System Design and Layout <br /> Central Valley Baptist Church <br /> APN 204-020-04, UP-01-9 <br /> 10948 S. Airport Way <br /> Manteca, California <br /> Dear Mr. Cooney, <br /> Per your request, our office has provided an engineered septic system design to serve <br /> the subject project. The site is located at 10948 S. Airport Way, Manteca, California. <br /> This letter and the attached drawing provide the design details for the engineered <br /> septic system. A separate letter will follow with an estimate for the construction <br /> inspection and monitoring costs. The design includes features to reduce the potential <br /> build-up of nitrates from the on-site septic system into the ground. �1 <br /> A previous septic system design was provided for the facility by our office and approved <br /> by the San Joaquin County Environmental Health Department (EHD) in 2003. We <br /> understand the EHD has requested that the previous plan be revised based on <br /> performance issues with all other package engineered septic treatment systems used in <br /> the County. <br /> During my conversation with Rodney Estrada at EHD on July 23, 2007, he suggested <br /> that a more conventional septic system, optimized to reduce nitrates, could be utilized. <br /> A design which uses familiar leaching trenches, similar tank capacity, and other features <br /> such as placing carbon in the trenches (wood chips), is acceptable to the EHD. They <br /> realize that a more conventional system will not treat the effluent to the extent of a <br /> package treatment system but has the advantages of reduced maintenance and capital <br /> cost. They have; however, required a one (1) year minimum period of monthly system <br /> monitoring and analytical testing of effluent similar to that required for the previous <br /> system. <br /> I <br /> LODI SACRAMENTO • RENO - MODESTO - WALNUT CREEK <br /> L 0 D 1 902 Industrial Way • Lodi,CA 95240 - 209.367.3701 ■ FAX 209-369.4228 ■ www.noandmon.com <br />