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MONITORING AND REPORTING PROGIZ_kN1 <br />CITY OF STOCKTON" <br />AUSTIN ROAD LANDFILL GROUNDWATER TREATMENT SYSTEM <br />SAN JOAQULN COUNTY <br />RECEIVING WATER MONITORLNG <br />All receiving water (Littlejohns Creek) samples shall be grab samples. Samples should be <br />representative of the volume and flow in the receiving water. If there is no flow in the receiving <br />water at Station R-1, then the Discharger isnot required to sample at Station R-2. Receiving <br />water samples shall be taken from the following: <br />Station <br />Description <br />R-1 <br />Upstream and out of the influence of the discharge to <br />Littlejohn Creek <br />R-2 <br />500 feet do Amstream of the discharge <br />to Littlejohn Cree% <br />Sampling <br />Constituents <br />Units <br />Station <br />Frequencv <br />pH <br />pH units <br />R-1, R-2 <br />Monthly <br />Turbidity <br />Turbidity units <br />R- 1, R-2 <br />Monthly <br />Specific <br />jimhos/cm <br />R-1, R-2 <br />Monthly <br />Conductivity <br />Temperature <br />OF <br />R-1, R-2 <br />Monthly <br />Dissolved Oxygen <br />mg/l <br />R-1, R-2 <br />Monthly <br />VOCs] <br />µg/1 <br />R- 1, R-2 <br />Monthly2 <br />Upstream Flow <br />cfs <br />R-1 <br />Monthly <br />(estimated) <br />C� <br />'.. \. <br />By USEPA„Method.601.o,r equivalent, -with a maximum PQL,.of,0.5.µg/l. <br />2 If any sample shows detectable volatile organics, the Discharger shall immediately <br />resample and reanalyze the receiving water for the detected constituents) and shall <br />continue sampling the receiving water on a weekly basis until the constituent(s) <br />concentrations are below detection. <br />In conducting the receiving water sampling, a log shall be. kept of the receiving water conditions <br />throughout the reach bounded by Stations R-1 and R-2. Attention shall be given to the presence <br />or absence of: <br />a- Floating or suspended matter <br />b. Discoloration <br />c. Bottom deposits <br />d- Aquatic life <br />Notes on receiving water conditions shall be summarized in the monitoring report. <br />CS 005428 <br />City of Stockton 19oss5-0006 <br />