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90189-23 COT-1 <br /> Table 1. FIELD AND ANALYTICAL RESULTS (concluded) <br /> 4 November 1987 21 March 1986 <br /> MW-13 MW-13 <br /> MW-12 (duplicate MW-12 (duplicate <br /> MW-1 MW-3 (blank) MW-1) MW-1 MW-3 (blank) MW-1) <br /> Field <br /> Temp °C 21.5 18.5 16.0 21.5 -- -- -- -- <br /> pH 7.53 7.50 5.83 7.53 7.3 7.80 6.3 7.5 <br /> Conductance <br /> umhos 820 560 5 820 -- -- -- -- <br /> Analytical <br /> Total Lead (mg/L) <0.05 <0.05 <0.05 <0.05 0.040 0.110 <0.005 0.030 <br /> Total Copper (mg/L) 0.081 0. 12 <0.006 0.078 0.030 0.180 <0.025 0.170 <br /> Total Dissolved <br /> Solids (mg/L) 500 770 49 600 -- -- -- -- <br />