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f' o E s s NEIL O. ANirER:SON"& ASSOCIATES, INC. <br /> 07, GEOTECHNICAL•ENVIRONMENTAL-GROUNDWATER•INSPECTIONS•TESTING•LABORATORY SERVICES <br /> CORPORATE OFFICE SACRAMENTO OFFICE , <br />! 22 Houston Lane 4229 Norlhgate Boulevard,Suile,3 <br /> 10 <br /> C C19C0 (530)891.6304 - - Lodi,California 95240 - - Sacramento,California 95834 - <br /> r -• a \V: STOCKTON <br /> '(201))472-I09]- _ (209)367-3701 - - (916)929-9267 - - <br /> S S 0 C. RANCHO CO_RDOVA-(916)631-4455 - - FAX.(209)333-8303 FAX (916)929-9269 . <br /> _ May 5, 2003 <br /> Our Job No..LG02-213 <br /> Pastor Matt Linder <br /> 4 .. Central Valley,Baptist Church <br /> 550 N. Union Road <br /> Manteca, CA 95337 <br /> f. Subject: ADDENDUM;SOIL SUITABILITY/NITRATE LOADING STUDY <br /> CENTRAL VALLEY BAPTIST CHURCH(UP-01-9) ' <br /> F <br /> 10.948 S:AIRPORT WAY, MANTECA, CALIFORNIA <br /> Dear.Pastor Linder, <br /> Per our request,we have completed an addendum to the nitrate loadin stud LS for the <br /> Y 9 � p loading.study ) <br /> k 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 job number,was LG02-213. For additional <br /> projectdetails,please refer to the soil suitability/nitrate loading,report. <br /> ' The.following Ietter.is an update of the tlitrate loading portion of the.report. This letter reflects <br /> some,new information regarding the quantityand 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. Tlie revised ' <br /> plan for the facility noted on the Quataroli&Associates site plait shows Phase I construction will consist_ <br /> of a 40-ft b 160-ft 6 400 s ft: steel structure to be used as a multi- u ose buildin Included--in <br /> Y � � q• . ) p � g• ' <br /> ' Phase Iwill be,a storm drain detention basin and 87 parking spaces. Phase II will consist of a 130-ft x <br /> € 200-ft(26,000 sq. ft:) church building. Parking will:increase to 108 spaces for Phase II. 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 soiI'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: Because of these conditions and the"County's concerns for additional impacts to ground water, a <br /> recommendation for the use of an engineered septic system to reduce nitrates of the sewage effluent was <br /> provided,. <br /> Theoriginal soil suitability/nitrate loading study.was prepared for the Phase-1:use,only since no <br /> project details were available for.the Phase Hat that time-of the"report. Since then,this information 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-se'ptic'systems, anitrate <br /> t loading analysis was required by the San Joaquin County Public Health Services,Environmental Health <br />