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90189-T1 COT-1 <br /> Table 1. LABORATORY RESULTS SUMMARY - FIRST QUARTER (revised 20 September 1988) <br /> Total Surveyed Depth Ground- <br /> Sample Dissolved Total Total Hexavalent Total Well to water <br /> Identi- Conductivity Solids Copper Lead Chromium Nickel Elevation Ground- Elevation <br /> fication (umhos) pH (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (MSL) water (MSL) <br /> • <br /> MW-1 846 7.6 635 0.050 <0.05 <0.01 <0.04 5.49 6.02 -0.53 <br /> MW-3 1,080 7.3 779 0.025 <0.05 <0.01 0.11 4.83 7.84 -3.01 <br /> MW-4 999 7.5 732 0.13 <0.05 <0.01 0.11 4.38 7.37 -2.99 <br /> MW-12 4 5.1 11 <0.006 <0.05 <0.01 <0.04 N/A N/A N/A <br /> (blank) <br /> MW-13 1,100 7.4 800 0.043 <0.05 <0.01 <0.04 4.83 7.84 -3.01 <br /> (duplicate <br /> MW-3) <br /> Minimum Detection Levels: <br /> C� = 0.006 mg/L <br /> Cr+ = 0.01 mg/L <br /> Pb = 0.05 mg/L <br /> Ni = 0.04 mg/L <br />