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STANDARD PROVISIONS AND REPORTING REQUIREMENTS,JANUARY 2012 -7- <br /> FOR <br /> 7_FOR WASTE DISCHARGE REQUIREMENTS <br /> FOR DISCHARGES REGULATED BY SUBTITLE D AND/OR TITLE 27 <br /> 10.The Discharger shall lock all groundwater monitoring wells with a lock on the <br /> well cap or monitoring well box. All monitoring devices shall be clearly labeled <br /> with their designation including all monitoring wells, LCRS risers, and lysimeter <br /> risers and shall be easily accessible for required monitoring by authorized <br /> personnel. Each monitoring device shall be clearly visible and be protected <br /> from damage by equipment or vehicles. <br /> 11 .The Discharger shall ensure that methane and other landfill gases are <br /> adequately vented, removed from landfill units, or otherwise controlled to <br /> prevent the danger of adverse health effects, nuisance conditions, degradation, <br /> or the impairment of the beneficial uses of surface water or groundwater due to <br /> migration through the unsaturated zone. <br /> 12.The Discharger shall maintain the depth of the fluid in the sump of each landfill <br /> unit at the minimum needed for efficient pump operation (the depth at which the <br /> pump turns on given the pump intake height and maximum pump cycle <br /> frequency). <br /> 13.The depth of fluid on the landfill liner shall not exceed 30 centimeters (cm) <br /> [40 C.F.R. § 258.40(a)(2)]. This regulation is interpreted by the Central Valley <br /> Water Board to exclude the leachate sump. The Discharger shall immediately <br /> notify the Central Valley Water Board staff by telephone, and follow up in writing <br /> within seven days if monitoring reveals that the depth of fluid on any portion of <br /> the liner (excluding the sump) exceeds 30 cm (approximately 12 inches). The <br /> written notification shall include a timetable for remedial or corrective action <br /> necessary to achieve compliance with the leachate depth limitation. <br /> 14.Each LCRS shall be tested at least annually to demonstrate proper operation. <br /> The results of the tests shall be compared with earlier tests made under <br /> comparable conditions [Title 27, § 20340(d)]. <br /> 15.The Discharger shall maintain a Storm Water Pollution Prevention Plan and <br /> Monitoring Program and Reporting Requirements in accordance with State <br /> Water Board Order No. 97-03-DWQ (or most recent general industrial storm <br /> water permit), or retain all storm water on-site. <br /> 16.Internal site drainage from surface or subsurface sources shall not contact or <br /> percolate through wastes. <br /> 17.New MSW landfill units or lateral expansions of existing units shall not be sited <br /> in a "wetland" [as defined in 40 C.F.R. § 232.29(r)] unless there is no practical <br /> alternative; steps have been taken to assure no net loss of wetland; the landfill <br /> unit will not degrade the wetland; the unit will not jeopardize threatened or <br /> endangered species or produce adverse modification of a critical habitat or <br /> violate any requirement of the Marine Protection, Research, and Sanctuaries <br /> Act of 1972 [40 C.F.R. § 258.12]. <br />