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TABLE 4-7 GROUND WATER QUALITY GENERAL MINERALS ANALYSIS:INORGANICS and PARAMETERS Monitoring Well Number: MW-1 Date Sampled: 07/10/89 07/10/89 07/10/89 07/10/89 10/20/89 10/20/89 01/18/90 01/18/90 04/05/90 04/05/90 Sample ID Number: 35097 35096 35095 35094 42125 42123 61264 61263 62965 62966 Laboratory ID Number: 48140-03 48140-02 48140-01 48140-04 49811-03 49811-02 51084-14 51084-13 52262-02 52262-03 Analyzing Lab: Enseco Enseco Enseco Enseco Enseco Enseco Enseco Enseco Enseco Enseco Sample Matrix: Water Water Water Water Water Water Water Water Water Water Reporting Inorganics&Parameters Results Results Results Results Results Results Results Results Results Results Limit Units Calcium 16 15 14 16 21.5 22.2 22.8 22.4 23.2 21.8 0.1 mg/L Iron ND ND ND ND ND ND ND ND ND ND 0.1 mg/L Magnesium 12 11 11 12 12.9 13.2 11.2 11 11.2 10.4 0.2 mg/l, Potassium 6 5 6 6 ND ND ND ND ND ND 5 mg/L Sodium 25 23 24 26 14.9 15.2 13.6 13.4 14.8 12.2 5 mg/L Chloride 10 11 12 11 9.4 8.9 5.9 6 6.9 6.9 5 mg/L Sulfide ND ND ND ND ND ND ND ND ND ND 0.05 mg/L Sulfate 7 7 7 7 7.2 7.1 7.3 7.2 7 7 5 mg/L Nitrate as N 0.66 0.65 0.7 0.66 2.5 2.5 2.5 2.4 2.5 2.5 0.05 mg/L Ammonia as N Total Dissolved Solids 141 166 177 121 170 198 163 190 190 180 10 mg/L Dissolved Organic Carbon Total Organic Carbon 0.6 ND 2.1 0.9 0.74 0.73 0.69 0.81 0.97 1.4 0.5 mg/L Chemical Oxygen Demand ND 7 ND ND 5 mg/L Total Alkalinity as CaCO3 110 111 110 109 106 105 110 109 1 mg/L Bicarbonate as CaCO3 110 ill 110 109 110 109 101 100 1 mg/L Carbonate as CaCO3 ND ND ND ND ND ND ND ND 1 mg/L Hvdroxide as CaCO3 ND ND ND ND ND ND 1 mg/L pH 8 8 8 8 Specific Conductance 292 296 289 285 1 umhos/cm Notes: ND-Not detected above laboratory reporting limit. PAP -A blank indicates that this constituent was not analyzed for in this sample. rn FT-9" z -n rn r D rn M