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San Joaquin County DIRECTOR <br /> Donna Heran, REHS <br /> oPRU:" Environmental Health Department <br /> 2._ ASSISTANT DIRECTOR <br /> a: 600 East Main Street Laurie Cotulla,REHS <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> �r Carl Borgman,REBS <br /> cQ`lF.o �P Mike Huggins, REHS, RDI <br /> Website: www.sjgov.org/ehd Margaret Lagorio, REHS <br /> Phone: (209)468-3420 Robert McClellon, REHS <br /> Fax: (209)464-0138 Jeff Carruesco, REHS, RDI <br /> Kasey Foley, REHS <br /> September 5, 2008 <br /> JD Singh Service Station, Inc. <br /> C(OPY <br /> Unocal/Subway <br /> 2410 Tecado Terrace <br /> Fremont, CA 94539 <br /> RE: Routine Bi-Annual Inspection conducted on the Waste Water Treatment Plant Facility <br /> Facility Name: Unocal/Subway <br /> Facility Location: 9015 W Walnut Grove, Thornton, CA <br /> Inspection Date: September 2, 2008 <br /> Facility I.D.: PRO522382 <br /> Permit I.D.: PT0015123 <br /> On September 2, 2008 a routine bi-annual inspection was conducted at the above referenced <br /> wastewater treatment plant facility. Bernie Dietz, MicroSepTec Installer and Operator, is the <br /> Certified Distribution Operator(CDO)for the plant. The following findings were observed and <br /> noted upon inspection: <br /> 1. As of this date there have been several changes and upgrades to the existing facility. <br /> A chain-link fence has been installed around the perimeter of the system to enclose <br /> the MicroSepTec three (SM1500) gallon per day (gpd) units. Carbon filters have been <br /> installed to mitigate any odors that potentially could escape the system. No odors were <br /> detected at the perimeter locations of the MicroSepTec units. The only period of time <br /> in which odors may be present is upon routine scheduled maintenance which includes <br /> the pumping of the solids from the lift stations of the three systems. <br /> The system is serviced every three months and includes the pumping of the lift station and <br /> the first chamber of each of the three MicroSepTec systems to remove sludge. The last <br /> pump service for the lift stations took place on July 16, 2008. Included in the service is a <br /> routine visual inspection of each of the chambers to verify aeration and the testing of the <br /> floats and pumps to confirm components are operating properly. Inspection ports are also <br /> installed in the three filter bed systems. <br /> The last complete servicing of the plant was conducted on June 29, 2008. The control <br /> panels were replaced to update the system to the latest FS configuration per Bernie Dietz. <br /> Pumps, floats, and wiring were inspected to verify proper operation. <br /> On the date of inspection two of the three MicroSepTec systems were in use. System <br /> number one has been shut down per Bernie Dietz (CDO), to conserve power. The system is <br /> available for operation but is not currently needed, nor is required to be in operation. <br /> 1 <br />