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2.06-8 <br />The purpose of the wells will be to determine if the quality <br />of water in the alluvium is impacted by the mining operation. <br />Two wells are proposed at each location because it is possible <br />that the water in the alluvium up gradient of the irrigation <br />ditch will be impacted, yet the water in the alluvium down gradi- <br />ent is not impacted. Since Area 1 is down gradient of the irri- <br />gation ditch, the distinction between the two monitoring points <br />is important. See section 2.05.6(3) for the monitoring schedule <br />for the alluvial wells and the surface water monitoring point. <br />The four proposed alluvial wells will be installed as soon as <br />possible but no later than the end of the first quarter of 1992. <br />The surface water monitoring point for the irrigation ditch, R-1, <br />will be sampled concurrently with the alluvial wells. <br />None of the run-off from the permit area rill enter Broad <br />Canyon. Broad Canyon is tributary to Naturita Creek at the <br />location of Area 2. Area 2 is on the north aide of Naturita <br />Creek and Broad Canyon flows into Naturita Creek from the south. <br />Flow from Broad Canyon is not used to irrigate Area 2 nor does it <br />contribute flow to the irrigation system for Area 2. Bven if <br />run-off from the permit area were to flow into Broad Canyon, the <br />flow would not effect the quality of surface xater supplied to <br />Area 2. <br />Flow from the permit area, through Section 33 Creek, could <br />theoretically effect the quality oP water in Naturita Creek. <br />Area 1 does not receive irrigation water from Naturita Creek. <br />Area 2 receives irrigation water from Naturita Creek from a point <br />well upstream of the intersection of Section 33 Creek and Naturi- <br />ta Creek. The other potential alluvial valley floors along <br />Naturita Creek would obviously derive water from Naturita Creek. <br />The surface water monitoring plan presented in section 2.05.6(3) <br />includes monitoring upper and lower Naturita Creek. This water <br />monitoring information will show the effect, if any, that the <br />mining operation has on Naturita Creek and by association the <br />alluvial water along Naturita Creek. <br /> <br />2.06-4 August 1991 <br />