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<br />' QUALITY ASSURANCE/QUALITY CONTROL <br />' PROTOCOLS FOR THE COLLECTION OF <br />SURFACE AND GROUND WATER QUALITY DATA <br />' SAN LUIS GOLD PROJECT, COSTILLA COUNTY, COLORADO <br />' SECTION 1: INTRODUCTION <br />The locations of the currently-installed surface and ground water <br />monitoring points that are sampled under the CMLRB permit are shown <br />' in Figure 1. There are currently six surface wd,ter gaging <br />stations, designated RS-1 through RS-6. Stations RS-1, RS-2 and <br />RS-5 are located on the main channel of Rito Seco, and Stations RS- <br />' 3, RS-4 and RS-6 are located on unnamed tributaries entering Rito <br />Seco from the south (Figure 1). <br />1 <br /> <br /> <br />1 <br />1 <br />1 <br /> <br /> <br /> <br />There are currently ten monitoring well locations. The wells are <br />completed in the ore target zone, the Santa Fe Formation and the <br />Rito Seco alluvium. Due to the current mining activity, one well <br />remains in the ore target zone. This well is designated D87-24. <br />The monitoring wells completed in the Santa Fe Formation and the <br />Rito Seco alluvium are designated M-1, M-2, M-4, and M-6 through M- <br />11 (Figure 1). <br />The currently-required water quality monitoring under the CMLRB <br />permit and the Water Court decree in Case No. 89CW32 includes: <br />(i) Quarterly sampling at the surface water and ground water <br />monitoring points established in the CMLRB permit (CMLRB <br />Permit No. M-88-112); <br />-1- <br /> <br />