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Dissolved solids concentrations at this station averaged <br /> at 415 mg/1 and sulfates at 100 m9/1 . Suspended solids were <br /> high for three samples of six, but on May 1 , 1979 1560 mg/1 <br /> were recovered. Heavy metals were not much of a problem, <br /> although copper and iron had a couple high recoveries. The <br /> degraded condition of Dutch Creek was similar to that of <br /> Bear Creek (Station BC- I , Table 30) , the next sampling station. <br /> Runoff laden with coal dust from the plant grounds is treated in <br /> a series of settling ponds and discharged to Bear Creek. Again, <br /> dissolved solids in the creek were high averaging 315 mg/l , <br /> suspended solids averaged 100 mg/l , and sulfate averaged 120 mg/l . <br /> Iron was a greater problem averaging 2550 ug/l . <br /> The last point of sampling was Coal Creek above the confluence <br /> with the Crystal (Station CC-] , Table 25) , about three miles below <br /> Bear Creek. The condition of Coal Creek was still heavily degraded. <br /> Copper and iron were still excessively high averaging 6 ug/1 and <br /> 1345 ug/I respectively. The average dissolved solids concentration <br /> of 317 mg/1 was about the same as at the intermediate Coal Creek <br /> Station CC-2. Average suspended solids averaged 111 mg/1 similar <br /> to Station CC-3, while the average sulfate concentration was 100 mg/l . <br /> Table 6 graphically represents the average solids and sulfate <br /> concentrations of Coal Creek and better illustrates the fluctuations <br /> of these parameters. <br /> The sulfate concentrations in this drainage can be associated <br /> with the coal mining activities, since sulphur is a small percentage <br /> of coal . The total dissolved solids concentrations which include <br /> - 21 - <br />