USGS Site Number State Well Number Dates Times Type of Sample "1,1,1-Trichloroethane (Percent Recovery)" "1,1-Dichloroethene (Percent Recovery)" "1,2-Dichloroethane (Percent Recovery)" "1,4-Dichlorobenzene (Percent Recovery)" Bromodichloromethane (Percent Recovery) Tribromomethane (Percent Recovery) Chlorodibromomethane (Percent Recovery) Ethylbenzene (Percent Recovery) Tetrachloroethene (Percent Recovery) Tetrachloromethane (Percent Recovery) Trichloroethene (Percent Recovery) Chloroethene (Percent Recovery) Methyl tert-butyl ether (Percent Recovery) 381923121255001 6N/5E-33Q2M 5/23/96 1052 Spike 113 112 113 93 98 95 99 103 113 123 108 106 94 381923121255001 6N/5E-33Q2M 5/23/96 1053 Spike Replicate 118 108 113 98 103 95 99 108 123 123 108 99 94 390954121394302 15N/3E-8F2M 6/13/96 1042 Spike 118 108 123 93 108 95 103 103 108 123 103 76 94 390954121394302 15N/3E-8F2M 6/13/96 1043 Spike Replicate 124 117 128 98 103 90 94 103 108 128 103 99 108 382911121312301 7N/4E-3K2M 6/22/98 1132 Spike 208 170 217 117 201 185 175 134 120 191 165 154 156 382911121312301 7N/4E-3K2M 6/22/98 1133 Spike Replicate Cannot calculate because of estimated value Cannot calculate because of estimated value Cannot calculate because of estimated value Cannot calculate because of estimated value Cannot calculate because of estimated value 80 80 45 45 Cannot calculate because of estimated value 70 69 67 382800121270701 7N/5E-17B1M 7/22/98 1042 Spike 95 75 90 77 101 96 94 93 86 82 90 61 71 382800121270701 7N/5E-17B1M 7/22/98 1043 Spike Replicate 83 64 88 68 92 88 91 84 77 75 81 47 68 383727121301801 9N/4E-23A1M 8/6/98 932 Spike 92 80 Cannot calculate because of estimated value 59 97 92 84 72 59 84 81 61 97 383727121301801 9N/4E-23A1M 8/6/98 933 Spike Replicate 113 98 Cannot calculate because of estimated value 76 117 105 102 97 75 105 104 69 105 384318121230001 10N/5E-13F1M 8/19/98 1012 Spike 99 81 108 71 103 88 85 87 72 87 93 76 100 384318121230001 10N/5E-13F1M 8/19/98 1013 Spike Replicate 103 80 114 75 109 93 89 92 75 90 97 63 104