ARCHIVED REPORTS_2008_26 - Laserfiche WebLink

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MONTTORING AND REPORTING PROGRAM -6- FORWARD INC.,FORWARD LANDFILL SAN JOAQUIN COUNTY LEACHATE MONITORING All landfill unit and surface impoundment LCRS sumps shall be inspected weekly for leachate generation. Upon detection of leachate in a previously dry LCRS, the Discharger shall immediately sample the leachate and shall continue to sample the leachate semiannually thereafter. Leachate samples shall be analyzed for the following: all constituents listed in Attachment E, and the following additional constituents: dissolved or total organic carbon,dissolved iron, carbonate, bicarbonate, alkalinity, dissolved aluminum,dissolved chromium VI, and dissolved manganese. The quantity of leachate pumped from each sump shall be measured continuously and reported as Leachate Volume (in gallons/month). LCRS MONITORING All LCRSs shall be tested annually to demonstrate operation in conformance with waste discharge requirements. The results of these tests shall be reported to the Board and shall include comparison with earlier tests made under comparable conditions. 2 . Detection Monitoring Program (DMP) For each monitored medium, all Monitoring Points assigned to detection monitoring, and all Background Monitoring Points shall be monitored once each calendar quarter for the Monitoring Parameters listed in this Pro For any given monitored medium,a sufficient number of samples shall be taken from all Monitoring Points and Background Monitoring Points to satisfy the data analysis requirements for a given Reporting Period, and shall be taken in a manner that ensures sample independence to the greatest extent feasible. Ground water sampling shall also include an accurate determination of the ground water. surface elevation and field parameters (pH,temperature,electrical conductivity,turbidity) for that Monitoring Point or Background Monitoring Point. Ground water elevations taken prior to purging the well and sampling for Monitoring Parameters shall be used to fulfill the ground water gradient/direction analyses required. For each monitored ground water body,the Discharger shall measure the water level in each well and determine ground water gradient and direction at least quarterly,including the times of expected highest and lowest elevations of the water level for the respective ground water body. Ground water elevations for all background and downgradient wells for a given ground water body shall be measured within a period of time short enough to avoid temporal variations in ground water flow which could preclude accurate determination of ground water gradient and direction. This information shall be included in the quarterly monitoring reports. Statistical or non-statistical analysis shall be performed as soon as the monitoring data are available.