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AMENDMENT TO MONITORING AND REPORTING PROGRAM -7- <br /> FOR MUNICIPAL SOLID WASTE LANDFILLS <br /> 6. Monitoring Parameters <br /> Beginning on 9 October 1994, the Discharger shall analyze water samples from each water- <br /> bearing medium separately for the following Monitoring Parameters, and shall test the <br /> resulting data using either the statistical or non-statistical methods listed in the Standard <br /> Provisions (or alternative methods the Board finds meets the requirements of 23 CCR <br /> 2550.7(e)(6-10) and 40 CFR 258.53): <br /> a. Parameters that use statistical methods: <br /> i. pH, total dissolved solids, specific conductivity, chloride, sulfate, and nitrate <br /> nitrogen; <br /> ii. Each VOC (listed in Attachment 2) that equals or exceeds its respective MDL in at <br /> least ten percent of the samples taken from the Background Monitoring Points for a <br /> monitored water-bearing medium(i.e., surface water body, aquifer, perched zone, <br /> or soil-pore liquid) during a given Reporting Period; and <br /> b. Parameter that uses non-statistical method: <br /> the composite monitoring parameter"VOC Water", consisting of all VOCs listed in <br /> Attachment 2. <br /> Ordered by: WL,(z . tL <br /> WILLIAM H. CROOKS, Executive Officer <br /> 17 September 1993 <br /> (Date) <br />