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' reclaimed area of the east pit. Water quality sampling of the Stol]steimer Creek alluvium <br />was added to station A-1 and eliminated from station W-1. Frequency of sampling, depth- <br />' to-water measurements, and stream discharge measurements were not changed by this <br />revision. In June 1988, the CMLRD approved a technical revision to conduct this monitoring <br />program on a quarterly basis and in May 1990, a technical revision was approved which <br />' eliminated all groundwater monitoring at the site. In January 1992, the CMLRD approved <br />a reduction in surface water sampling to quarterly flow measurements and semiannual water <br />quality at three surface stations. <br />' The following sections of this report describe the methods and results of this revised <br />program conducted at the Chimney Rock Mine site during 1991. Also contained in this <br />' report is a comparison of the data collected over the 1985 through 1991 period and <br />recommendations for future monitoring. <br />1 <br />1 <br /> <br />