SU0004233 SSNL - Laserfiche WebLink

Home Browse Search

DILLON & MURPHY CONSULTING CIVIL ENGINEERS 1820 W. Kettleman Lane, Suite E, Lodi, California 95242 P. O. Box 2180, Lodi, California 95241 CSC Cry IMOD (209) 334-6613 • Fax (209) 334-0723 u u DEC 3 0 2002 December 26, 2002 tNVIRoiVMENT HEALTH Fax (209) 368-0600 PERMIT/SERVICES Diede Construction P.O. Box 1007 Woodbridge, CA 95258 Atm: Dave Lagorio Re: Aqua Pools Project No. 0216 Dear Dave: I met with Mike Huggins and Ray Borges at the San Joaquin County Environmental Health Department today regarding the status of the Aqua Pools project near Manteca. They had several points of concern that need to be addressed prior to beginning a design of the project. Their most serious area of concern is the Nitrate Loading Studies that have been performed and the existing Nitrate problems that already exist in the area. The initial report prepared by Kleinfelder yielded an expected nitrate level of 28.31 mg/l which exceeds the allowable of 10.0 mg/1. Tina Edvardsson of MicroSepTec performed a revised analysis based on changing one of the variables in the Nitrate equation. She changed it based on test results from one of their systems installed in Tracy. Her results yielded an 8.5 mg/1 Nitrate level. The County approved of her logic of using "test results" as one of the variables in the equation. However, they would like the results to be from a project located in sandy soil like Manteca rather than the soil type in Tracy. With your authorization, I will discuss this with Tina and see if she can provide the information the County requested. Also, the County feels that MicroSepTec should include some additional de-nitrification measures in the leach areas (adding organics, etc.). Unfortunately, one of the wells tested near this project yielded a Nitrate level of 110.0 mg/l. A more pressing issue is the desire of the owner to build a "shell" building on a portion of the property. The Health Department's position is that they have been adamant about not allowing a building without knowing its use. They have made this clear at the Development Committee meeting and all subsequent meetings. In fact, I saw Ray Borge's job file and on the outside cover of the folder (in bold, red ink) he noted that no building permit was to be approved without knowing the uses. They have made their position clear that the site layout, as it exists, probably will not leave enough area for a septic system. The layout needs to be evaluated based on any new information that MicroSepTec may provide. The well location, as shown, severely limits C;. WIagorio Itr 122602