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• SW -N210 is located at an inlet of an irrigation pipe and represents the up gradient <br />condition. <br />• SW -N213 is located on Nygren Draw and represents the up gradient condition. <br />• SW -N214 is located on Nygren Draw and represents the down gradient condition. <br />• SW -N215 is located on an unnamed draw upstream of the Meehan Draw Confluence and <br />represents the up gradient condition. <br />• SW -N216 is located on unnamed draw downstream of the Meehan Draw Confluence and <br />represents the down gradient condition. <br />• SW -N217 is located on the San Miguel River upstream of the Tuttle Draw Confluence <br />and represents up gradient condition. <br />• SW -N218 is located on the San Miguel River downstream at Coal Canyon Confluence <br />and represents a down gradient condition. <br />• SS -1 is located at the toe of the backfill of the old Nucla Mine (NH1), and represents a <br />pre -mine and down gradient condition for NHN. <br />• SS -2 is located 50 yards upstream of SS -1, at the toe of the backfill of the old Nucla <br />Mine, and represents a pre -mine and down gradient condition for NHN. <br />New Horizon North currently samples each surface water site for a variety of quality parameters. <br />Of all the parameters that are analyzed for, several key indicator parameters have been identified <br />and are addressed annually for the hydrology report. These parameters are lab pH, lab <br />conductivity, TDS, sulfate, calcium, iron, magnesium, and sodium. Surface water monitoring <br />data for the water year can be found in Appendix 1, and surface water summary graphs of the <br />indicator parameters for all monitoring locations are provided in Appendix 2. <br />3 1 P a g e <br />