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O E R S0 NEIL O. ANDERSON & ASSOCIATES, INC. <br /> GEOTECHNICAL•ENVIRONMENTAL•GROUNDWATER•INSPECTIONS•TESTTNG•LABORATORY SERVICFS <br /> D N CORPORATE OFFICE SACRAMENTO OFFICE <br /> y w 22 Houston lane 4229 Northgate Boulevard,Suite 3 <br /> Q - CHICO (530)891-530-4 _ - - - Lodi,California 95240 Sacramento,California 95834 _ <br /> q S S O G P STOCKTON.(209)472-1091 (209)367-3701 (916)929-9267 <br /> RANCHO CORDOVA (916)6h-4455 - -FIkX(209)333-8303 <br /> FAX (9)6}929-9269 - <br /> May 5, 2003 <br /> Our Job No..LG02-213 <br /> t Pastor Matt Linder <br /> Central Valley Baptist Church <br /> '550 N.Union Road <br /> Manteca,CA 95337 <br /> E <br /> Subject: ADDENDUM, SOIL SUITABILITY/NITRATE LOADING STUDY <br /> CENTRAL.VALLEY BAPTIST CHURCH(CTP-01-9) <br /> 10948 S.AIRPORT WAY, MANTECA, CALIFORNIA <br /> Dear Pastor Linder, . <br /> Per your request,we.have completed an addendum to the nitrate loading-Study(NLS)'for the <br /> subject property: The project address is 10948 S.'Airport Way,Manteca, California.. The Assessors <br /> Parcel Number is 204-020-04 containing 16.67 acres. The San Joaquin County Community Development <br /> Department Use Permit Number is UP-01-9. The original soil suitability/nitrate load study was prepared <br /> by our office and was dated_December 16, 2002. The project '6b�number was LG02-213. For additional <br /> project details,please refer to the soil suitability/nitrate loading;report: <br /> -The following letter is an update of the nitrate loading portion of the report. This letter reflects <br /> some new information regarding the quantity and quality of the waste water influent, and the predicted <br /> concentrations with and without the use of an engineered septic system.• <br /> The proposed project consists of a church facility to be constructed in two phases. The revised'. <br /> plan for the facility noted on the Quataroii &Associates site plan shows Phase I construction will consist <br /> ' of a 40-ft by 160-ft(6,400 sq. ft.) steel structure to be used as a multi-purpose building.- Included in <br /> Phase I will be a storm drain detention basin and 87 parking spaces. Phase 11 will consist of a 130-ft x . <br /> 200-ft(26,000 sq. ft.) church building.'Parking will increase to 108 spaces for Phase 11. No kitchen is <br /> planned for the Phase I building. No kitchen or showers are,planned for either phase. Phase II is to be <br /> completed by 2007. . <br /> The original soil.suitability/nitrate loading study found the site had a rapid percolation rate, <br /> relatively shallow depth to ground water,and the pre-existing nitrate condition of the underlying ground <br /> water. Becauseof these conditions and the County's concerns for additional impacts to groundwater,a <br /> recommendation for the use of an engineered septic system to reduce nitrates of the"sewage effluent was <br /> provided. <br /> The original soil suitability/nitrate loading study was prepared for the Phase I use only since no <br /> project details were available for the Phase H at that time of the report. Since then,this inforriiation has <br /> been provided to our office requiring this addendum report. <br /> Revised Nitrate Loading Analysis <br /> Because of the concern of nitrate.leaching into ground water.from septic systems,a nitrate <br /> loading analysis was required by the San Joaquin County Public Health,Services,Environmental Health <br />