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1 <br />Comparison of 1991 Spoils Spring #1 Water Quality With <br />Historic (1980 -1990) Levels for Parameters Whose Levels <br />Were Exceeded During 1991 <br />Parameter Historic Range April, 1991 September, 1991 <br />EC (field) 27 -3390 2930 3480 <br />Flow (cfs) 0 -0.105 0.018 0.105 <br />1 <br />As (ug /l) 1-2 5 <1 <br />Cd (ug /l) 0.1 -5 < 5 6 <br />2 <br />Cl (mg /l) 13 -22 16 27 <br />2 <br />NO2 /1 (mg /l) 0.01 -0.06 < .02 3.27 <br />2 <br />Na1mgLli 42 -69 95 79 <br />Metals expressed as total recoverables <br />2 <br />Dissolved constituents <br />3 <br />Detection limit of 5 ug /l <br />TABLE 8 <br />16 <br />