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Corral Hollow Sanitary Landfill <br /> Postclosure Maintenance Plan <br /> Revised January, 1994 <br /> 3) A numbering system to correlate monitoring results to a <br /> corresponding probe location. <br /> In the event that methane levels exceed the specified limits at any <br /> of the monitoring points, the county will develop a program to <br /> bring the levels into compliance. The program will conform to <br /> Title 14, Chapter 3, Article 7.8, section 17783 . 15. <br /> 3.0 SUMMARY OF REPORTING REQUIREMENTS <br /> 3 . 1 Leachate <br /> Due to the conditions mentioned in section 2. 1 of this Postclosure <br /> Plan, a leachate control system is not feasible or necessary and <br /> will not be installed at the Corral Hollow Sanitary Landfill. As <br /> a result, the reporting requirements for leachate in section 17781 <br /> do not apply. <br /> 3 .2 Groundwater <br /> The groundwater monitoring wells are currently being sampled <br /> quarterly and annually for parameters listed in the Waste Discharge <br /> Requirements issued by the Regional Water Quality Control Board. <br /> Groundwater monitoring will continue on a quarterly basis <br /> throughout the postclosure period. A written report will be <br /> submitted to the LEA, RWQCB, and the CIWMB. The report will <br /> contain all groundwater monitoring information as required in the <br /> Waste Discharge Requirements (Appendix B) . <br /> The testing parameters and frequencies may change in accordance <br /> with Title 23, Chapter 15, Article 5 which was revised on June 30, <br /> 1991. The Regional Water Quality Control Board will issue revised <br /> Waste Discharge Requirements to conform to the new Article 5. <br /> 3 . 3 Landfill Gas <br /> Landfill gas will be monitored at least on a quarterly basis. <br /> Monitoring results will be presented in the form of a report to the <br /> Local Enforcement Agency and the Board within 90 days of the <br /> sampling event. The report will include the following items: <br /> 1) Concentration of methane measured at each probe. <br /> 2) Concentrations of trace gases when required. <br /> 3) The documentation of date, time, barometric pressure, <br /> atmospheric temperatures, general weather conditions, and <br /> 6 <br />