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Bill Filios 2 <br /> <br />21 November 2017 <br />Operable <br />Unit No. Description Remaining <br />Constituents of Concern <br />4 Former Above Ground Storage Tanks Fuel Oil and <br />Product Lines Petroleum-related <br />5 Former Above Ground Diesel Fuel Storage Tank Petroleum-related <br />6 Former Above Ground Gasoline Storage Tank Petroleum-related <br />7 Former Above Ground Storage Tanks at the Acid, <br />Caustic, Sulfuric Acid Storage Area Metals <br />8 Underground Slab Factory Drains Petroleum-related <br />9 Former Underground Beet Flume Pesticides/Herbicides <br />10 Solvent Washdown Pad Petroleum-related <br />11 Rail Spurs Petroleum-related, Metals, <br />Pesticides/Herbicides <br />Table 2 summarizes the Discharger's proposed scope-of-work for evaluating the existing data <br />and collecting additional data. <br />Table 2 — Pro Dosed Sco e-Of-Work <br />Operable <br />Unit No. <br />Constituents <br />of Concern Proposed Evaluation <br />1 <br />Petroleum-related Check reporting limits to confirm non-detect results are below <br />current screening levels. <br />Metals <br />Collect and analyze 5 soil and 2 groundwater samples for <br />CAM 17 Metals if background soil metal concentrations <br />cannot be determined from existing literature sources. <br />General Chemistry <br />Collect and analyze 6 soil and 2 groundwater samples from <br />two boring locations for Carbonates, Bicarbonates, and <br />Nitrates. <br />2 Petroleum-related Check reporting limits to confirm non-detect results are below <br />current screening levels. <br />3 Petroleum-related Check reporting limits to confirm non-detect results are below <br />current screening levels. <br />4 Petroleum-related Check reporting limits to confirm non-detect results are below <br />current screening levels. <br />5 Petroleum-related <br />Collect and analyze 18 passive soil gas, 2 soil vapor, 6 soil <br />and 6 groundwater samples for Total Petroleum <br />Hydrocarbons and Chlorinated Solvents. <br />6 Petroleum-related Check reporting limits to confirm non-detect results are below <br />current screening levels. <br />7 Metals <br />Compare metals results to published background soil metal <br />concentrations or metals background sampling evaluation <br />pre eared for Operational Unit 1. <br />8 Petroleum-related <br />Collect and analyze 29 passive soil gas, 2 soil vapor, 6 soil <br />and 7 groundwater samples for Total Petroleum <br />Hydrocarbons and Chlorinated Solvents. <br />9 Pesticides/ <br />Herbicides <br />Collect and analyze 12 passive soil gas, 4 soil and <br />2 groundwater samples for Pesticides and Herbicides. <br />10 Petroleum-related Check reporting limits to confirm non-detect results are below <br />current screening levels.