ARCHIVED REPORTS XR0003457 - Laserfiche WebLink

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TABLE 2-Continued GROUND WATER SAMPLE ANALYTICAL RESULTS Concentrations in micrograms per liter (jug1l) Monitoring Ethyl- Total Well Date Benzene Toluene benzene Xylenes TPHQe MW-5 02/10/92 1 9 <05 <05 <0 5 51d 03/18/92 0 6 <05 <05 <0 5 <Rr 06/04/92 1 0 <05 <0 5 <05 <50 09/28/92 0 7 <05 <05 <05 69 12/18/92 1 2 <05 <05 <05 77 04/05/93 <05 <05 <05 <05 <50 09/23/93 <05 10 0 6 22 <50 11/15/93 <0 5 <05 <05 <05 <50 02/10/94 62 - <0 5 <05 <05 <50 MW-6 02/11/92 06 <05 <05 <05 5I 03/18/92 06 <05 <05 <05 <50e 06/04/92 <05 <05 <05 <05 <50 09/28/92 <05 <05 <05 <05 <50 12/18/92 <0 5 <05 <0 5 <05 <50 04/05/93 <0 5 <05 <05 <0 5 906 09/23/93 <0 5 0 8 <05 1 5 52 11/15/93 <0 5 <05 <05 <05 <50 02/10/94 0 7 / <05 <05 <05 <50 ° Total Petroleum Hydrocarbons as gasoline 6 Atypical chromatogram with unidentified peak(s) within the range of gasoline hydrocarbons Chlonnated hydrocarbons are suspected A ground water sample collected from morutoring well MW-6 on April 17, 1992, contained chlorobenzene and 1,2-dichlorobenzene Atypical chromatogram Analysis of this sample by EPA Method 624 on April 17, 1992 (past EPA recommended holding time), was positive for the following chlorinated hydrocarbons vmylchlonde, cis-1,2- dichlorethene,trichloroethene and tetrachlorethene These peaks resulted in a positive fuel hydrocarbon result d Atypical chromatogram Four unknown peaks were observed causing a positive fuel hydrocarbon result Chlorinated hydrocarbons are suspected Atypical chromatogram An unknown peak was observed between MTBE and benzene Chlorinated hydrocarbons are suspected r Atypical chromatogram Analysis of this sample by EPA Method 624 on April 17, 1992 (past EPA recommended holding time)was positive for the following chlorinated hydrocarbons chlorobenzene and 1,2- dichlorobenzene LRP227 571-1