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7 ST <br />FORCITY OF STOCKTON <br />AUSTIN R4OAD LANDFILL FACILITY <br />CLASS III LANDFILL <br />SAN JOAQUIN COUNTY <br />Quantity discharged <br />Type of material discharged <br />Source(s) of material discharged <br />Minimum elevation of discharge <br />�ilia �Ti <br />2. Corrective Action Monitoring Program <br />Reporting <br />Uaill Fregggagy <br />cubic yards or tons Quarterly <br />--- Quarterly <br />Quarterly <br />feet & tenths MSL Quarterly <br />percent Annually <br />-4- <br />The Discharger shall collect and analyze all data necessary to assess the nature and extent of <br />the release from the landfill. This assessment shall include a determination of the spacial <br />distribution and concentration of each COC throughout the zone affected by the release. In <br />conjunction with the assessment the discharger shall monitor ground water to evaluate <br />changes in water quality resulting from the release. Based on the data collected the discharger <br />shall evaluate the effectiveness of the corrective action program. <br />For each monitored mediun:4 all Monitoring Points assigned to corrective action monitoring <br />Monitoring Parameters fisted in this Program. The Discharger shall report, in writing, to the <br />regional board on the effectiveness of the corrective action program. The Discharger shall <br />submit these reports at least semi-annually. <br />For any given monitored medium, a sufficient number of samples shall be taken from all <br />Monitoring Points and Background Monitoring Points to satisfy the data analysis <br />requirements for a given Reporting Period, and shall be taken in a manner that ensures sample <br />independence to the greatest extent feasible. <br />Ground water sampling shall also include an accurate determination of the ground water <br />surface elevation and field parameters (pK temperature, electrical conductivity, turbidity) for <br />that Monitoring Point or Background Monitoring Point. Ground water elevations taken prior <br />to purging the well and sampling for Monitoring Parameters shall be used to fulfill the ground <br />water gradient/direction analyses required. For each monitored ground water body, the <br />Discharger shall measure the water level in each well and determine ground water gradient <br />and direction at least quarterly, including the times of expected highest and lowest elevations <br />of the water level for the respective ground water body. Ground water elevati6ns for all <br />background and downgradient wells for a given ground water body shall be measured within a <br />13 <br />