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Table 1 <br /> Statistical Summary of Groundwater Concentrations at Monitoring Locations <br /> Lincoln Center, California <br /> Concentration Trend* PCE TCE cis-1,2-DCE <br /> Location ID GW Zone <br /> PCE TCE DCE Cr(VI) KMn04 Total Number Percent Total Number Percent Total Number Percent <br /> samples Detects ND samples Detects ND samples Detects ND <br /> Probably <br /> MW-128A A Decreasing Decreasing Decreasing Increasing Stable 5 2 60% 5 2 60% 5 3 40% <br /> Insufficient <br /> MW-129A A Stable Stable Stable No Trend Data 33 13 61% 33 12 64% 33 12 64% <br /> MW-20313-1 B Decreasing Decreasing Decreasing -- -- 37 21 43% 37 19 49% 37 22 41% <br /> MW-20313-2 B Decreasing Decreasing Decreasing -- -- 27 11 59% 27 13 52% 27 13 52% <br /> MW-20313-3 B Decreasing Decreasing Decreasing -- -- 27 1 96% 27 6 78% 27 6 78% <br /> Probably <br /> MW-204B B No Trend Decreasing Decreasing -- -- 62 59 5% 62 56 10% 62 56 10% <br /> MW-205B B Decreasing Decreasing No Trend Increasing Stable 25 2 92% 25 9 64% 25 7 1 72% <br /> Insufficient <br /> MW-206B B Decreasing No Trend Decreasing Increasing Data 39 13 67% 39 17 56% 39 21 46% <br /> MW-208B B Decreasing Decreasing No Trend -- -- 30 23 23% 30 19 37% 30 21 30% <br /> MW-209B B Decreasing Stable Increasing -- 29 3 90% 29 29 0% 29 29 0% <br /> MW-210B B Decreasing Increasing Increasing -- -- 28 16 43% 28 14 50% 28 14 50% <br /> MW-211B B Stable Increasing Increasing -- -- 33 33 0% 33 33 0% 33 33 0% <br /> MW-214B B Decreasing Decreasing Increasing Increasing Stable 18 18 0% 18 18 0% 18 18 0% <br /> MW-215B B Decreasing Decreasing Decreasing Increasing Stable 5 2 60% 5 1 4 20% 5 5 0% <br /> MW-217B B Stable Stable Increasing -- -- 6 5 17% 6 6 0% 6 6 0% <br /> MW-219B B Probably <br /> Stable Decreasing Decreasing -- 40 8 80% 40 3 93% 40 4 90% <br /> MW-301C C No Trend Decreasing Decreasing -- 55 48 13% 55 42 24% 55 43 22% <br /> Abbreviations: <br /> GW Zone=Ground water zone <br /> PCE=Tetrachloroethene <br /> WE=Trichloroethene <br /> DCE=cis-1,2-Dichloroethene <br /> Cr(VI)=Hexavalent chromium <br /> KMnO4=Potassium Permanganate <br /> ND=non-detects <br /> *= concentration trends determined using Mann-Kendall Statistics and includes concentrations reported at the laboratory reporting limits. <br /> = data not available <br />