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DRAFT [TENTATIVE] WASTE DISCHARGE REQUIREMENTS ORDER R5-2023-00XX 93 <br />FORWARD, INC. <br />FORWARD LANDFILL <br />SAN JOAQUIN COUNTY <br />STANDARD PROVISIONS & REPORTING REQUIREMENTS <br />their respective MDLs or if one or more analyte equals or <br />exceeds its PQL. The Discharger shall then: <br />(A)Immediately verbally notify the Central Valley Water <br />Board whether or not the retest confirmed measurably <br />significant evidence of a release for the analyte at the <br />monitoring point, and follow up with written notification <br />submitted by certified mail within seven days of the <br />verbal notification; and <br />(B)Carry out the requirements of Section J, RESPONSE <br />TO A RELEASE if a release has been confirmed. <br />(C)Add any five-year analyte that is confirmed per this <br />method to the monitoring parameter list such that it is <br />monitored during each regular monitoring event. <br />47.Verification Procedure for Analytes Detected in 10% or Greater of the <br />Background Samples. The Discharger shall use either a statistical or <br />non-statistical method pursuant to Title 27, section 20415(e)(8)(E) for all <br />analytes that are detected in 10% or greater of the background samples. <br />The Discharger shall use one of the statistical methods required in <br />Title 27, section 20415(e)(8)(E) unless another method has been <br />proposed by the Discharger in a Water Quality Protection Standard Report <br />(or equivalent report) and approved by the Central Valley Water Board in a <br />Monitoring and Reporting Program pursuant to Title 27, section <br />20415(e)(8)(A-D)] or section 20415(e)(8)(E). The method shall be <br />implemented as follows: <br />a.Initial Determination of Measurably Significant Evidence of a <br />Release. The Discharger shall compare the value reported by the <br />laboratory for each analyte to the statistically-derived concentration <br />limit from the most recent report (Annual Monitoring Report or <br />Water Quality Protection Standard Report) that uses the approved <br />statistical procedure. If the value exceeds the concentration limit for <br />that constituent, the Discharger shall conclude that there in <br />measurably significant evidence of a release [Title 27, § 20420(i)]. <br />b.Retest Method [Title 27, § 20415(e)(8)(E) and § 20420(j)(1-3)]. <br />i.In the event that the Discharger or Central Valley Water <br />Board staff concludes (pursuant to paragraph I.47.a., above) <br />that there is a preliminary indication of a release, then the