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flow is normally less than 10 gpm and are, therefore, not significant. The annual <br />discharges for the #1 Strip Pit are presented in Figure 25 and the 1994 discharge <br />measurements are presented on Figure 26. The discharge from the #1 Strip Pit <br />increased significantly in 1989. This may have been due to seepage from the ditch that <br />conveys the 7 North Angle discharge. The 7 North Angle discharge began in January of <br />1989. However, discharge rates from 1990 through 1993 are considerably lower and <br />within the range observe during 1982 through 1986. Nevertheless, snowmelt and ditch <br />seepage both appear to have some influence on the Strip Pit discharge, as the <br />discharge generally drops to just a few gpm from January through May with a small peak <br />in March coinciding with spring runoff. <br />WATER QUALITY <br />The summary of the water quality data for the spring is presented in Tables 33 and 34. <br />A plot of dissolved solids for the #1 Strip Pit is presented in Figure 27 and iron <br />concentrations are presented on Figure 28. It indicates that the dissolved solids level of <br />the discharge has increased from an average of approximately 900 mg/I in 1982 and <br />1983 to almost 1,400 mg/I in 1986, and then decreased to approximately 1,100 mg/I <br />since 1987. <br />PONDS <br />There was no discharge from the sediment ponds in 1994. <br />C-81-044 1990 AHR Page 10 <br />