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EMCON Associates <br /> Table 1 Project 939-01.10 i <br /> 6/11/91 <br /> SECOND QUARTER 1991 ANALYTICAL RESULTS <br /> Units:mo,unless noted <br /> Sample Designation MW-1 MW-2 MW-3 MW-4 <br /> Sampling Date 05/09/91 05/09/91 05/09/91 05/09/91 <br /> Halogenated and Aromatic Volatile Organic Compounds(ugA) <br /> S (EPA Methods 601 and 602) <br /> R <br /> Dichlorodifluoromethane <1 3 <i 1 <br /> Metals <br /> Arsenic,Dissolved <0.005 <0.005 <0.005 <0.005 <br /> Barium,Dissolved 0.034 0.062 0.046 0.301 <br /> Cadmium.Dissolved <0.003 <0.003 <0.003 <0.003 <br /> Calcium,Dissolved 14.1 19.7 14.3 99.5 <br /> Chromium,Total Dissolved <0.005 <0.005 0.006 <0.005 <br /> Copper,Dissolved <0.01 <0.01 <0.01 <0.01 <br /> Lead,Dissolved <0.002 <0.002 <0.002 <0.002 <br /> Magnesium,Dissolved 7.58 10.7 7.89 51.1 <br /> Manganese,Dissolved <0. <0.005 <0.005 <0.005 <br /> Mercury,Dissolved <0. <0.0005 <0.0005 <0.0005 <br /> Selenium,Dissolved <0.005 <0.005 <0.005 <0.005 <br /> Silver,Dissolved <0.01 <0.01 <0.01 <0.01 <br /> Sodium,Dissolved 22.1 22 19.7 50.4 <br /> Zinc,Dissolved <0.01 <0.01 <0.01 <0.01 <br /> General Water-quality Parameters <br /> Depth to Water(feet) 126.14 121.21 118.58 118.56 <br /> Top of Casing(feet,msi) 109.24 101.36 95.66 97.59 <br /> Color(cobalt units) <5 <5 <5 20 <br /> Odor Slight Slight Slight Slight <br /> Electrical Conductivity(umhos/cm) 271 344 271 1192 <br /> pH(units) 7.58 6.84 6.94 6.91 <br /> Chloride 10 14 13 130 <br /> Chemical Oxygen Demand 2.9 <0.3 19 5.8 <br /> Fluoride 0.18 0.18 0.18 0.11 <br /> Hardness,Total 66 94 70 520 <br /> Nitrate Nitrogen 1.8 0.2 0.8 0.8 <br /> Total lgeldahl Nitrogen <0.1 <0.1 <0.1 <0.1 <br /> Total Dissolved Solids 270 260 270 790 <br /> Sulfate <8 <8 <8 8.2 <br /> MBAS <0.025 <0.025 <0.025 <0.025 <br />