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0 <br />MONITORING AND REPORTING PROGRAM <br />FOR CITY OF STOCKTON <br />AUSTIN ROAD LANDFILL FACILITY <br />CLASS III LANDFILL <br />SAN JOAQUIN COUNTY <br />period of time short enough to avoid temporal variations in ground water flow which could <br />preclude accurate determination of ground water gradient and direction. This information <br />shall be included in the quarterly monitoring reports. <br />-5- <br />Statistical or non -statistical analysis should be performed as soon as the monitoring data are <br />available. <br />3. Leachate Monitoring Program <br />If leachate surfaces, the discharger shall immediately sample'theleachate and continue to <br />sample and report the leachate at the frequencies listed in Table I thereafter. Also, should a <br />Leachate Collection Removal System be constructed, it shall be monitored according to the <br />schedule in Table I. <br />For COC detection, the leachate sump will be sampled in the fourth quarter of the year in <br />Amok which it is constructed, for the parameters and frequencies in Table I. Those COCs that are <br />detected will be analyzed in leachate in the second quarter of the year following the year of <br />construction. Any COCl detected in the retest sample shall be included in the COC list for <br />ground water, surface water and unsaturated zone. <br />Thereafter, leachate samples for COC detection will be collected annually in the fourth quarter <br />of the year. If constituents are detected that are not already COCs, leachate will be resampled <br />for those constituents only in the second quarter of the following year. If the COC is detected <br />in the retest sample it shall be added to the list of COCs in the ground water monitoring <br />program, the surface water monitoring program, and the unsaturated zone monitoring <br />program. <br />11 <br />• r. <br />1= r <br />