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4640 E. Woodward Avenue <br /> ► 1 Addendum to Revised Soil Suitability and Nitrate Loading Study <br /> Prepared by Kleinfelder,Inc. July 13,2006 <br /> gravel. The holes were observed to be in sandy soils, with rapid movement of water out of <br /> r-� the boreholes. <br /> After the pre-soaking was complete, a request was made to SIC EHD to observe the final_- <br /> thirty minutes of the Percolation Test which was to be performed the next day. <br /> On June 8, 2011, GTI staff mobilized on site and performed the percolatton test._No water <br /> -�f <br /> was observed to remain in either borehol r <br /> e om-the-pre�.soaking, so p Procedure #3 s <br /> implemented. The results of th one-hour percolation test-were recorded on SJM� ID <br /> Percolation Test Rate form which is Mc-luded-in-Appendix A). The percolate nx-aze-;in <br /> eac <br /> test hole was rounded up to the nearest minute, and was found to be approx' ately 3 utes <br /> i per inch. <br /> 4.0 PROPOSED USE <br /> [ . The 4640 E. Woodward Avenue site consists of a 5.83 acre-parcel, with a single family <br /> residence and game room constructed in the north east portion of the site. A paved parking <br /> ! area has been constructed west of the residence and game room, and a storm drainage area is <br /> ! located west of the parking area. A septic system consisting of two septic tanks and a leach <br /> field has been constructed south of the game room. Please refer to Figure 3 for a site plan <br /> prepared by Edmond Jacobs Architect. <br /> f � <br /> It is GTI's understanding that the site owners wish to change the use of the game room to <br /> religious assembly. Mr. Birinder Singh has indicated that the proposed religious-assembly <br /> would consist of approximately 80 people over the course"oT`a ypical Saturdy, 150 p ple <br /> over the course of a typical znday, but not more than 50 pe pile at any one ti to-on either / <br /> day. From Monday to Friday 6 or 7people are expected-to.be-present. <br /> a <br /> Based on this information, it is assumed that the temple (with use of a kitchen) will have a <br /> maximum seating capacity of 50 people which will be used two days per week, up to 10 r- <br /> people 5 days per week, and residential use. According to the San Joaquin County Onsite <br /> Wastewater Disposal Standards page 13 (see Appendix A), churches with a kitchen are <br /> estimated to use 10-gallons/seat per person per day. <br /> For the purpose of nitrate loading calculations, the average waste/sewage flow per week for <br /> the site is estimated to be: <br /> 10 gal 10 gal <br /> 50 personseating capacity x x 2 days + 10 ersons x x 5 days <br /> person person l <br /> 1 <br /> 300 gal <br /> + da for residence x 7 days} <br /> Y <br /> l <br /> = <br /> 3,600 g�ailons per week <br /> C7e010g coal TecWcslnc. 3 <br /> 16232 Nitrate Loading Addendum.doex <br />