17003_Moores Chapel PLAT 20150527

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70 Cis-1,2-dichloroethylene MW-3 04/05/2012 3,200 70 1,1,1-Trichloroethane MW-3 04/05/2012 860 200 1,1-Dichloroethane MW-3 04/05/2012 98 6 METALS Chromium MW-1 04/05/2012 65 10 Chromium MW-2 04/05/2012 26 10 Chromium MW-4 04/05/2012 56 10 Manganese MW-1 04/05/2012 220 50 Manganese MW-2 04/05/2012 260 50 Manganese MW-4 04/05/2012 280 50 GROUNDWATER-VAPOR INTRUSION Groundwater contaminants in micrograms per liter (the equivalent of parts pe r billion), the vapor intrusion screening limits for which are derived from the Industrial Vapor Intrusion Screening Levels of the Inactive Hazardous Site s Branch of DENR’s Superfund Section (January 2014 version 1 ): Groundwater Contaminant Sample Location Date of Sampling Maximum Concentration Exceeding Screening Limit (g/m3) Industrial Screening Limit 2 (g/L) Trichloroethylene MW-1 04/05/2012 7.6 4.35 Trichloroethylene MW-3 04/05/2012 600 4.35 Tetrachloroethylene MW-1 04/05/2012 190 48.4 Tetrachloroethylene MW-2 04/05/2012 340 48.4 Tetrachloroethylene MW-3 04/05/2012 95,000 48.4 Cis-1,2-dichloroethylene MW-3 04/05/2012 3,200 315 1,1-Dichloroethylene MW-3 04/05/2012 340 164 1. http://portal.ncdenr.org/c/document_library/get_file?uuid=a036efdc-5552-4e57-935a-64e48cdcafb7&groupId=38361 2. Screening limits displayed for non-carcinogens are for a hazard quotient equal to 0.2. Screening levels displayed for carcinogens are for a 1.0E-5 lifetime incremental cancer risk. SUB-SLAB VAPOR Soil gas contaminants in micrograms per cubic meter, the screening limits for which are derived from Industrial Vapor Intrusion Screening Levels of the Inactive Hazardous Sites Branch of DENR’s Superfund Section (January 2014 version 1 ): Soil Gas Contaminant Sample Location Date of Sampling Maximum Concentration Exceeding Screening Limit (g/m3) Industrial Screening Limit 2 (g/m3) Tetrachloroethylene SSV-2 04/06/2012 4,854.6 3500 1. http://portal.ncdenr.org/c/document_library/get_file?uuid=a036efdc ‐5552 ‐4e57 ‐935a ‐64e48cdcafb7&groupId=38361 2. Screening limits displayed for non-carcinogens are for a hazard quotient equal to 0.2. Screening limits displayed for carcinogens are for a 1.0E-5 lifetime incremental cancer risk.