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MONITORING AND REPORTINAOGRAM NO. R5-2006-0814 • <br /> - 2 - <br /> PIONEER AMERICAS LLC <br /> TRACY, SAN JOAQUIN COUNTY <br /> 1,000 feet northwest of the Site. The three industrial water supply wells are located on the <br /> Site. The four domestic water supply wells are located approximately 40 to 100 feet north of <br /> the Site. The groundwater monitoring program for the 18 monitoring wells, three industrial <br /> supply wells, four domestic supply wells, and any wells installed or added subsequent to the <br /> issuance of this MRP, shall follow the schedule below. Sample collection and analysis shall <br /> follow standard U.S. EPA protocol. Volumes of groundwater extracted from each of the three <br /> production wells shall be recorded monthly. <br /> Table 1 <br /> Required Laboratory Analytical Methods and <br /> Practical Quantitation Limits <br /> USEPA Laboratory Maximum Practical <br /> Constituent Analytical Method Quantitation Limit <br /> (milligrams per liter) <br /> Volatile Organic 8021 or 82606 0.0005 <br /> Compounds <br /> Chloride 300 10 <br /> Sodium 6010 10 <br /> .r Total Organic 415.1 20 <br /> Carbon <br /> Total Dissolved 160.1 20 <br /> Solids <br /> o Nitrate & nitrite 300 0.1 <br /> v Sulfate 300 0.2 <br /> Sulfite 377.1 g <br /> Total Iron 6010A 0.02 <br /> Dissolved Iron 6010A 0.02 <br /> Ferrous Iron Direct Field Measurement 0.1 <br /> Total Alkalinity 310.1 5 <br /> ' For non-detectable results, all concentrations between the Method Detection <br /> Limit and the Practical Quantitation Limit shall be reported as trace. <br /> Table 2 <br /> Required Frequencies: <br /> Water Level Measurements, Laboratory Chemical Analyses, and <br /> Water Su I Well Flow Recordin s <br /> Quarterl Quarterl Semi-Annual2 <br /> Y y Annual° Monthly <br /> Well Name Depth to vOC' General 3 voc Flow <br /> Water Analysis Constituent Analysis Recording <br /> Analysis <br /> MW-1 X X X <br /> MW-2 X X X <br /> MW-3 X X X <br /> MW-4 X X X <br />