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i TABLE 4-8 SURFACE WATER QUALITY GENERAL MINERALS ANALYSIS:INORGANICS and PARAMETERS SW-1 SW-1 SW-2 SW-2 -3 SW-3 SW-4 SW-4 Date Sampled: 01/17/90 04/04/90 01/17/90 04/04/90 01/17/90 04/04/90 01/17/90 04/04/90 Sample ID Number: 61257 62958 61252 62959 61253 62960 61254 62961 Laboratory ID Number: 51804-07 52238-01 51804-02 52238-02 51804-03 52238-03 51804-04 52238-04 Analyzing Lab: Enseco Enseco Enseco Enseco Enseco Enseco Enseco Enseco Sample Matrix: Water Water Water Water Water Water Water Water Reporting Inorganics&Parameters Results Results Results Results Results Results Results Results Limit Units. Calcium 9.2 11.1 8.7 10.6 7 10.8 6.5 10.7 0.1 mg/L Iron 0.15 0.31 0.14 0.23 0.51 0.35 0.13 0.33 0.1 mg/L Magnesium 3.4 4.6 3.1 4.2 2.8 4.5 2.6 4.4 0.2 mg/L Potassium 6.4 8.2 5.7 8.1 5.1 8.4 ND 8.7 5 mg/L Sodium 5 ND ND ND ND ND ND ND 5 mg/L Chloride 2.2 3.4 2.4 3.5 1.6 3.6 1.4 3.5 1 mg/L Sulfate 3.5 2.5 3.6 2.6 1.5 2.7 1.5 2.5 1 mg/L Nitrate as N ND 0.098 0.094 ND ND 0.086 ND 0.066 0.05 mg/L Total Dissolved Solids 100 97 80 211 89 198 73 210 10 mg/L Total Organic Carbon 19.5 19.7 21 20.3 5 mg/L Chemical Oxygen Demand 37.3 22.8 46.6 23.8 49.5 18.5 55 23.8 5 mg/L Hardness as CaCO3 1.1 mg/L Total Alkalinity as CaCO3 39.1 38.2 31.7 30.6 1 mg/L Bicarbonate as CaCO3 39.1 49.2 38.2 47.7 31.7 49.9 30.6 48.9 1 mg/L Carbonate as CaCO3 ND ND ND ND ND ND ND ND 1 mg/L Hydroxide as CaCO3 ND ND ND ND 1 mg/L pH 7.1 7.8 7.2 7.1 Specific Conductance 112 107 113 115 1 umhos/cm ND-Not detected above laboratory reporting limit. -A blank indicates that this constituent was not analyzed for in this sample. X r m Fr-W2 Z T M r T