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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2003-0049 -24- FORWARD INC. AND ALLIED WASTE INDUSTRIES FOR OPERATION OF FORWARD CLASS II LANDFILL SAN JOAQUIN COUNTY d) Send such samples for laboratory analysis of all detectable VOCs within thirty days. b. If either or both the new samples validates the presence of VOC(s), using the above criteria, the Discharger shall: 1) Immediately notify the Board about the VOC(s) verified to be present at that background monitoring point, and follow up with written notification submitted by certified mail within seven days of validation; and 2) If the Discharger believes that the VOC(s) in background is from a source other than the Unit, then: a) Within seven days of determining "measurably significant" evidence of a release, submit to the Board by certified mail a Notification of Intent to make such a demonstration pursuant to §20420(k)(7) of Title 27; and b) Within 90 days of determining "measurably significant' evidence of a release, submit a report to the Board that demonstrates that a source other than the Unit caused the evidence, or that the evidence resulted from error in sampling, analysis or evaluation, or from natural variation in groundwater, surface water, or the unsaturated zone. c. If the Executive Officer determines, after reviewing the submitted report(s), that the VOC(s) detected originated from a source other than the Unit(s), the Executive Officer will make appropriate changes to the monitoring program. 22. If the Executive Officer determines, after reviewing the submitted report, that the detected VOC(s) most likely originated from the Unit(s), the Discharger shall immediately implement the requirements of XI. Response To A Release, C. Release Has Been Verified, contained in the Standard Provisions and Reporting Requirements. 23. The discharger shall monitor all soil gas monitoring probes for the presence of VOCs on an annual basis in compliance with Monitoring and Reporting Program No. R5-2003-0049. Upon confirmation of a VOC release in landfill gas in a given area of the landfill, Gas extraction shall be implemented for that area. F. CORRECTIVE ACTION MONITORING 1. The Corrective Action Monitoring Program shall be used to assess the nature and extent of the release from the landfill and to evaluate the effectiveness of the corrective action program and the landfill cover.