Laserfiche WebLink
ti C) <br /> GEOTECHNICAL <br /> NEIL O. ANDERSON I ENVIRONMENTAL <br /> AN D A S S O C IAT .E S INSPECTIONS & TESTING <br /> LABORATORY SERVICES <br /> POOL ENGINEERING <br /> { POST TENSION DESIGN <br /> { <br /> December 17, 2008 <br /> Mr. Joe Murphy <br /> Dillon & Murphy <br /> P.O. Box 2180 <br /> Lodi, California 95241 <br /> Subject: Circle K Engineered Septic System Design and Layout <br /> Sanguinetti Investments, LLC., Circle K <br /> 25485 East Highway 4 <br /> Farmington, California <br /> Dear Joe, <br /> Per your request, our office has provided recommendations for an engineered septic system <br /> design to serve a proposed Circle K station and a commercial building. The Circle K and <br /> commercial building are located at 25485 East Highway 4, Farmington, California. This letter <br /> and the attached drawing provide the design details for the engineered septic system. A <br /> separate letter will follow with an estimate for the construction inspection services and <br /> monitoring costs by NOA. The design includes features to reduce the potential build-up of <br /> nitrates from the on-site septic system into the ground. <br /> Scope of Work <br /> The scope of work included a review of the SS/NLS report (NOA, 2007), discussions with the <br /> San Joaquin County Environmental Health Department (EHD) staff, review of several technical <br /> articles, and the complete layout, design, and calculations for a septic system. The scope of <br /> work does not include any additional permit fees or report review fees required by the EHD. <br /> General <br /> Based on several discussions with EHD staff, it was discussed that existing engineered septic <br /> systems under permit in San Joaquin County do not reliably achieve nitrate levels below 10 <br /> mg/L-N from the outflow of the system. Often, they exceed these goals. In addition to the <br /> reductions from package engineered septic systems, nitrate reduction is thought to occur within <br /> the leach field, however; it is difficult to measure. <br /> LODI ■ SACRAMENTO ■. RENO' ■ MODESTO • WALNUT CREEK <br /> L O D 1 902Industrial Way -i Lodi,CA 9524b • 209.367.3701 ■ FAX 209.333:8303. Enviro FAX 209.369-4228 <br /> S A C R A M E N T O 50 Goidenland Ct.,#100 Sacrarnento,,CA 95834 ■ 916.928.4690 . FAX 916.928.4697 <br /> WALNUT CREEK 1190$urinett Avenue,Suite A • Concord,CA 94520. • 925.609.7224 • FAX 925.609.6324 <br /> R E N 0 80 N.West Street ■ Fernley,NV 89408 • 775.575.6511 • FAX 775.575.2652 <br />