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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2003-0049 -18- FORWARD INC. AND ALLIED WASTE INDUSTRIES FOR OPERATION OF FORWARD CLASS II LANDFILL SAN JOAQUIN COUNTY 7. A third party independent of both the Discharger and the construction contractor shall perform all of the construction quality assurance monitoring and testing during the construction of a liner system. 8. If monitoring reveals substantial or progressive increases of leachate generation above the design leachate flow volume by the Unit or portion of the Unit, such that the depth of fluid on any portion of the LCRS (excluding the leachate removal pump sump) exceeds 30 cm,the Discharger shall immediately notify the Board in writing within seven days. The notification shall include a timetable for remedial or corrective action necessary to achieve compliance with the leachate depth limitation. 9. Any WMU that will not receive waste over the winter rainy season(November 1 through March 30) shall be graded to shed stormwater(at least a 3% grade),maintained to prevent ponding and have an enhanced intermediate cover installed. The enhanced intermediate cover shall consists of. one foot of clayey soil compacted to achieve a hydraulic conductivity of 10-5 cm/sec or some other equivalent hydraulic barrier overlain by an erosion layer composed of one foot of loosely compacted soil. 10. Closed landfill modules shall be graded to at least a three-percent(3%) grade and maintained to prevent ponding. E. DETECTION MONITORING SPECIFICATIONS 1. The Discharger shall comply with the detection monitoring program provisions of Title 27 for groundwater, surface water, soil-pore gas, and the unsaturated zone, and in accordance with Monitoring and Reporting Program No. R5-2003-0049. 2. The Discharger shall provide Board staff a minimum of one week notification prior to commencing any field activities related to the installation, repair, or abandonment of monitoring devices, and a minimum 48 hour notification prior to the collection of samples associated with a detection monitoring program, evaluation monitoring program, or corrective action program. 3. The Discharger shall comply with the Water Quality Protection Standard as specified in this Order, Monitoring and Reporting Program No. R5-2003-0049, and the Standard Provisions and Reporting Requirements, dated April 2000. 4. The Water Quality Protection Standard for organic compounds which are not naturally occurring and not detected in background groundwater samples shall be taken as the detection limit of the analytical method used(i.e., US-EPA methods 8260 and 8270). The presence of non-naturally occurring organic compounds in samples above the Water Quality Protection Standard from detection monitoring wells is evidence of a release from the Unit.