Laserfiche WebLink
New Horizon Mine #2 Technical Revision 59 <br />Surface water sampling at New Horizon #2 takes place at two points each along Tuttle <br />and Calamity Draws. These points are intended to be upstream and downstream <br />sample points. For Tuttle, these are SW-N1 (upstream) and SW-N3 (downstream) for <br />pre-mine and current conditions. Calamity draw was sampled upstream of the mine at <br />SW-N108 and downstream at SW-N109 since 2001. The sampling to this point has <br />been on an at least quarterly basis for Total Dissolved Solids (TDS) and monthly for pH. <br />This technical revision of the New Horizon #2 Mine permit, is to allow the sampling of <br />surface water from an upstream and downstream location of both Calamity and Tuttle <br />draws semi-annually. Map 2.04.7-1A shows the sample points. Data consistency of data <br />from each draw will be shown to justify the lowering of sample frequency. <br />Calamity Draw <br />Total Dissolved Solids (TDS) and pH are the water properties of concern for the New <br />Horizon #2 mine, and form the basis of sampling comparison. On Calamity Draw, <br />sampling has taken place at two locations from 2001 to 2008. The upstream sample <br />point, SW-N108, is located well above any drainage that carries surface water from the <br />disturbed areas into Calamity Draw. This is compared to sample point SW-N109, <br />located immediately downstream from the Pond 007 discharge on Calamity Draw. <br />Figure 1 shows the pH of the two points, and Figure 2 shows the TDS versus flow for <br />the two points.