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MONITORING AND REPORTING PROGRAM -2- WASTE MANAGEMENT OF NORTH AMERICA INCORPORATED FOOTHILL SANITARY LANDFILL INCORPORATED FOOTHILL SANITARY LANDFILL FACILITY CLASS III LANDFILL SAN JOAQUIN COUNTY protection standards for each parameter and constituent analyzed. The ground water surface elevation ( in feet and hundredths , MSL) in all wells shall be measured on a quarterly basis and used to determine the direction of ground water flow. This information shall be displayed on a water table contour map and/or ground water flow net for the site. Samples from all wells shall be analyzed for the following parameters and constituents: Sampling Report in & Reporting Parameter/Constituent Units of Frequency Specific Conductance (field) umhos/cm Quarterly pH (field) pH units Quarterly Dissolved] or [Total ] Organic Carbon mg/l Quarterly otal Dissolved Solids (TDS) mg/l Quarterly Chloride mg/l Quarterly Sulfate mg/i Quarterly Dissolved Ironl mg/1 Quarterly Carbonate mg/l Quarterly Bicarbonate mg/l Quarterly Alkalinity mg/l Quarterly Nitrate (as N) mg/l Quarterly Sulfides (including H2S) presence or absence Quarterly Volatile Organics2 ug/1 Annually Aluminuml mg/l Annually Antimonyl mg/l Annually Arsenic mg/1 Annually Cadmiuml mg/l Annually Total Chromium (III+VI)1 mg/l Annually Chromium (VI) mg/l Annually Coppgrl mg/l Annually Lead? mg/l Annually Manganesel mg/l Annually Mercury mg/l Annually Nickell mg/1 Annually Selenium mg/l Annually Silverl mg/l Annually Thalliuml mg/l Annually Zincl mg/l Annually llnductively Coupled Argon Plasma Atomic Emission Spectroscopy (ICAP) may be used for analysis of these constituents only. 2EPA Methods 601 and 602, or EPA Method 624 shall be used. All peaks shall be reported.