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.s r Iwo VALLEY AG January 25, 1999 FOR: Mr. Mike Huggins, R.E.H.S., R.D.I. Mr. Steve Mindt, R.E.H.S. San Joaquin County Environmental Health Department P.O. Box 388 Stockton, CA 95201 PROJECT: Proposed Calvary Bible Church-Lodi, CA UP-97-03 SUBJECT: Addendum to Nitrate Loading/Soil Suitability Studies (V.A.R.NLS-07.98) Dear Gentlemen: Further information has been requested by the County Environmental Health Department regarding our Nitrate Loading/Soil Suitability Studies for the above-referenced project. The first item concerns the installation of an additional leachfield in the vineyard to the north of the subject property. It was suggested that after the Church reaches a membership of 600 Parishioners, this leachfield should be installed in the vineyard. The primary issue originates from potential effluent overload of the leachfield on Sundays. Since there is considerable variability in attendance on any given Sunday, it is our opinion that membership may not accurately correlate with leachfield loading. To assess effluent loading under the subject leachfield, we reference page 8, paragraph five of our report. We propose to investigate effluent loading under different lengths of the leachline after two years of use to accurately determine the need to install the vineyard leachfield at that point in time. Subsequent investigations may continue on a scheduled basis. The "safety factor" built into the design of the septic system is to have a two-inch tightline installed from the last septic tank, traversing under the parking area and terminating at the vineyard. Therefore, if a problem with leachfield overloading occurs before the scheduled investigation, a new leachfield can be installed promptly. The second item of concern was the discharge of Baptistery water to the landscaping. To prevent standing water which may create a nuisance, the water will be pumped to the south grass area where it will be dispersed over the sloping terrain. The third item was assurance that no garbage disposal or grinder will be installed in the kitchen. All leftover food will be scraped from plates and utensils and placed in a garbage can. We trust the above information satisfactorily addresses the concerns of Environmental Health. If there are any questions, or need for additional information, please contact the undersigned. Respectfully submitted, Vi: ) EY AG USEARCH DonnChhes` y, R.E.A. cc: Mr. Larry Wenell- Wenell, Matheis and Bowe P.O. Box 3794 1 Turlock,California 95381 , (209)668-1403 1 Fax(209)668-2598