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90380t. CON-2 <br /> Table 4.3-3. TCE AND .PCE CONCENTRATIONS DETECTED IN GROUNDWATER AT DEFENSE DISTRIBUTION REGION WEST, TRACY <br /> (BY EPA METHOD 601) (continued) <br /> Trichloroethene (TCE) Tetrachloroethene (PCE) <br /> Screened Concentrations (ug/1 ) Concentrations (ug/1) <br /> Contaminant Interval Radian WCC WCC WCC WCC Radian WCC WCC WCC WCC <br /> Well I .D. Area (Feet BGS) 1986 1987 1988 1989 1990 1986 1987 1988 1989 1990 <br /> LM 32 3 18-28" 210 75 67 NS NS 320 110 100 NS NS <br /> LM 33 3 49-59 TR NO 1.2 NS NS TR NO NO NS NS <br /> LM 34 3 59-69 2.9 NO 1.5 NS NS TR NO 0.9 NS NS <br /> LM 58 dg. 3 20-30 NS ,:21 35 NS NS NS 8.8 17 NS NS <br /> LM 59 dg. 3 46-56 NS 1.2 3.3 NS NS NS 0.9 1.1 NS NS <br /> LM 60 dg. 3 80-100 NS ND NO NO NS NS NO NO NO NS <br /> LM 63 dg. 1 ,2&3 32-42 NS NS NO NS NS NS NS NO NS NS <br /> LM 64 dg. 1,2&3 70-90 NS NS NO NS NS NS NS NO NS NS <br /> LM 65 dg. 1,20 140.5-160.5 NS NS NO NS NS NS NS NO NS NS <br /> o LM 66 dg. 1&2 24-34 NS NS 8.5 NS NS NS NS 3.9 NS NS <br /> LM 67 dg. 1&2 75-95 NS NS 13 NS NS NS NS 4.6 NS NS <br /> LM 81 dg. 1&2 133-153 NS NS NS NO NS ND NS NS ND NS <br /> LM 68 dg. 2&3 41-51 NS NS 1 .8 NS NS NS NS NO NS NS <br /> LM 69 dg. 2&3 71.5-91.5 NS NS 1.3 NS NS -NS NS NO NS NS <br /> LM 70 dg. 2&3 121.5-141.5 NS NS 2.6 NS NS NS NS 0.7 NS NS <br /> LM 72 dg. 3 21.5-31.5 NS NS 10 12 NS :NS NS ND ND NS <br /> LM 73 dg. 3 76-96 NS NS NO NS NS a`` NS NS NO NS NS <br /> LM 17 4 13-33 26 NS 25 NS NS 38 NS 39 NS NS <br /> LM 87 4 81-91 NS NS NS NS NO NS NS NS NS NO <br /> LM 92 4 118-128 NS NS NS NS NO NS NS NS NS NO <br /> LM 75 n. 1 39-49 NS NS NS NS NO NS NS NS NS NO <br /> LM 78 n. 1 73-83 NS NS NS NS NO NS NS NS NS NO <br /> LM 88 n. 1 122-132 NS NS NS NS NO NS NS NS NS NO <br />