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Californialegional Water Quality Control Board <br /> Central Valley Region gym, <br /> Robert Schneider,Chair Arnold Schwarzenegger <br /> Terry Tamminen Governor <br /> Secretaryfor Sacramento Main Office <br /> Environmental Protection Internet Address: http://www.swrcb.ca.gov/—rwgcb5 <br /> 11020 Sun Center Drive,4200,Rancho Cordova,CA 95670.6114 <br /> Phone(916)464-3291 •FAX(916)464-4780 F01 E F� October 2004 <br /> Mr. Harold G. Rohrbach OCT 19 2004 <br /> Woodbridge Sanitary District <br /> 19720 N. Benedict Drive ENVIRONMENT HEALTH <br /> Woodbridge, CA 95258 PERMIT/SERVICES <br /> NOTICE OF VIOLATION, WOODBRIDGE WASTEWATER TREATMENT FACILITY, <br /> WOODBRIDGE, SAN JOA QUIN COUNTY <br /> On 7 October 2004, Regional Board staff inspected the Woodbridge Sanitary District wastewater <br /> treatment facility. Violations of the Waste Discharge Requirements (WDRs) Order No. 93-213 were <br /> observed during the inspection. The violations are described below; a photograph log and inspection <br /> report is attached. <br /> Excessive weed growth was observed in a number of ponds. The weed growth consisted of duckweed and <br /> other unidentified weeds. Discharge Specification B.6 requires: <br /> Ponds shall be managed to prevent breeding of mosquitoes. In particular, <br /> a. An erosion control program should assure that small coves and irregularities are not <br /> created around the perimeter of the water surface. <br /> b. Weeds shall be minimized through control of water depth, harvesting, or herbicides. <br /> c. Dead algae, vegetation, and debris shall not accumulate on the water surface. <br /> Dried sludge was observed stored on bare ground. This practice can lead to groundwater degradation if <br /> rain is allowed to fall on and percolate through the sludge piles. This issue was addressed in a 26 June <br /> 2001 Regional Board correspondence that stated, ,if you continue to store sludge onsite during the winter, <br /> then it must be on an impervious surface from which stormwater can be collected." <br /> By 15 November 2004, Woodbridge Sanitary District shall submit a report describing how weed growth <br /> is controlled and how the sludge has been removed or managed in a way that prevents groundwater <br /> degradation. <br /> If you have any questions on this Notice of Violation, please telephone Tim O'Brien at (916) 464-4616. <br /> WENDY WYELS, hief <br /> Waste Discharge to Land Unit <br /> enc: Inspection Report, Photo Log <br /> cc: Mike Huggins, San Joaquin County Environmental Health Department, Stockton <br /> California Environmental Protection Agency <br /> 01 Recycled Paper <br /> W AStaff\Obriedl\San Joaquin\Woodbridge CSD\Rohrbach 15 Oct 04.doc <br />