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1 <br /> Shadow Lakes Mobilehome Park, LLC <br /> 5100 N. Hwy 99 <br /> Stockton,CA 95212 <br /> January 7,2012 DECEIVE® <br /> JAN 17 2012 <br /> Brendan Kelly ENVIRONMENTAL 1I <br /> Central Valley Regional PERMIT/sERVIC g�TM <br /> Water Quality Control Board <br /> 11020 Sun Center Drive#200 <br /> Rancho Cordova, CA 95670-6114 <br /> SHADOW LAKES WWTP ANNUAL REPORT FOR 2011 <br /> The attached report represents the annual report for the Shadow Lakes wastewater facility. <br /> Average annual daily flow for the year indicated 29,168 gallons per day;total flow for the year was <br /> 10,646,470 gallons. <br /> During the year 145,900 gallons of sludge was removed from the plant. All waste sludge was aerobically <br /> digested and decanted to reduce volume. All sludge removed is taken to the City of Stockton Regional <br /> Wastewater Control Facility. All waste sludge hauling was performed by Richards Pumping of Stockton. <br /> The annual groundwater report will be submitted under a separate cover. <br /> Discussion <br /> Influent Monitoring <br /> All influent monitoring data was completed and reported on monthly reports. Average monthly BOD was <br /> 310 mg/L. Average monthly influent TSS was 236 mg/L. <br /> Effluent Monitoring <br /> All effluent monitoring was completed and reported. <br /> BOD Biochemical Oxygen Demand(BOD)averaged 12.8 mg/L over the year. All monthly values <br /> were within discharge limitations. <br /> TSS Total Suspended Solis is not a required monitoring parameter, however we use it for a quality <br /> control check on effluent quality. TSS annual monthly average was 22.9 mg/L for the year <br /> with one monthly average of 140 mg/L. This represents better than secondary effluent quality <br /> for the year. <br /> SS Settleable Solids averaged non-detect for the year. <br /> TDS Total Dissolved Solids averaged 240 mg/L for the year. <br /> 1 <br />