COMPLIANCE INFO_1991-1997 - Laserfiche WebLink

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WASTE DISCHARGE REQUIREMENTS 4 FOR CITY OF STOCKTON AUSTIN ROAD LANDFILL FACILITY CLASS III LANDFILL SAN JOAQUIN COUNTY 21. A Conceptual Corrective Action Plan was proposed by the Discharger on 24 April 1991 to address the chlorinated hydrocarbon impact to ground water. The plan was approved by the Board on 10 June 1991. A Corrective Action Plan dated 29 August 1991 was prepared consistent with the Conceptual Corrective Action Plan and involves the following actions: 1) reduction of leaching of chlorinated hydrocarbons into the ground water by checking incoming loads into the landfill for hazardous materials and implementing measures to reduce storm -water infiltration into the refuse; 2) extract aground water from the two existing extraction wells to reduce the off-site migration of chlorinated hydrocarbons; 3) install a system for treating the extracted ground water prior to discharge; and 4) monitor the effectiveness of the corrective action and potential need for modifications. 22. Waste Discharge Requirements Order No. 92-143. NPDES No. CA0082911, for the Ground Water Treatment System and Storm Water Discharge was adopted by the Board on 14 August 1992. 23. The Discharger submitted an Effluent and Receiving Water Quality Assessment Report (ERWQA) dated 22 October 1993 to determine if the proposed discharge from the ground water treatment system would have any impacts on the receiving water quality and, if necessary, develop a plan to mitigate the impacts. The ground water treatment system is designed to treat approximately 305 gallons per minute (gpm), which will be discharged to the north branch of the south fork of Littlejohn Creek. The Report indicates that the discharge from the ground water treatment system would have no impacts on the receiving water. Littlejohns Creek. 24. The action to revise WDRs for this facility is exempt from the provisions of the California Environmental Quality Act (Public Resources Code Section 21000. et seq.), in accordance with Title 14. CCR, Section 15301. 25. On 9 October 1991. the United States Environmental Protection Agency (USEPA) promulgated regulations (Title 40, Code of Federal Regulation, Parts 257 and 258, "federal MSW regulations" or "Subtitle D") that apply, in California, to dischargers who own or operate Class II or Class III landfill units at which municipal solid waste (MSWLF) is discharged. The majority of the federal MSW regulations became effective on the "Federal Deadline", which is 9 October 1993.