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MONITORING AND REPORTING PROGRAM FOR -2- <br /> CITY OF STOCKTON <br /> AUSTIN ROAD LANDFILL <br /> CLASS III LANDFILL <br /> SAN JOAQUIN COUNTY <br /> Sampling <br /> Report in & Reporting <br /> Parameter/Constituent Units of Frequency <br /> Acetone /jg/l Semiannually <br /> Methyl ethyl ketone Ng/l Semiannually <br /> Volatile Organics' Ng/l Semiannually <br /> Aluminum' mg/1 Annually <br /> Antimony' mg/l Annually <br /> Arsenic mg/1 Annually <br /> Cadmium' mg/l Annually <br /> Total Chromium (III+VI)' mg/l Annually <br /> Chromium (VI) mg/l Annually <br /> Copper' mg/l Annually <br /> Lead' mg/l Annually <br /> Manganese' mg/l Annually <br /> Mercur mg/l Annually <br /> Nickel mg/l Annually <br /> Selenium mg/l Annually <br /> Silver' mg/l Annually <br /> Thallium' mg/l Annually <br /> Zinc' mg/l Annually <br /> ' Inductively Coupled Argon Plasma Atomic Emission Spectroscopy (ICAP) may be <br /> used for analysis of these constituents only. <br /> ' EPA Methods 601 and 602, or EPA Method 624 shall be used. All peaks shall be <br /> reported. <br /> The Discharger shall determine at each sampling whether there is a statistically <br /> significant increase over water quality protection standards for each parameter and <br /> constituent analyzed. <br /> The ground water surface elevation (in feet and hundredths, M.S.L. ) in all wells shall <br /> be measured on a quarterly basis and used to determine the velocity and direction(s) <br /> of ground water flow. This information shall be displayed on a water table contour <br /> map and/or ground water flow net for the site. <br /> SURFACE WATER MONITORING <br /> The North fork of South Little Johns Creek shall be sampled upstream and downstream <br /> of the waste management facility at the locations shown on Attachment "B" , which shall <br /> constitute the points of compliance for surface waters. Surface water samples shall <br /> be analyzed on a quarterly basis for the following: <br />