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<br />gratled and topsof led poatmintrg topography has been reestablished using similar methods <br />proposed for the Nuela Eaat mining area. Ravegetati on of the postlaw areas at the Nucla <br />Mt ne is conducted by di skin9 the topsoil and ~driilirg the approved seed mixture. The <br />reseeded poatl aw reclaimed areas at the Nucla Mine rill meat applicable standar da for <br />success upon bond reiease, resulting in simf lar reduced runoff and sediment as predicted <br />for the Nuela East mining area. <br />Due to the relatively smelt areas of disturbance in et Sher mining area, any reductions in <br />runoff will have only a mSnimal Impact on streamflow'quanttty, as flow in both Calamity <br />and Tuttle Orawa Ss dominated Dy irrigation return flex. Decreased sedlnant loads <br />predi tied by Sm 1H0T II indicate that raeleneti on efforts conducted in ai Cher mining area <br />will ensure that additional contributions of suspended sediment in runoff from reclaimed <br />araaa M17 not occur. <br />Effects of Runoff from Raelai mad Areas on the Duali tr of Streamflow. The effects of <br />rurwff from raclai mad araaa on the quality of streemflow can be inferred From historic <br />hater quality sampling conducted at Cho NPDES Nonitori ng Site 001. A porn on of the <br />watershed above this pond is eonpri aed of poatlaw reclaimed areas. Aa ewnti oned in the <br />• surface water suitability section of Tab 7, sampled water from Shia site 1s suitable for <br />li veatoek drinking water, as is all other nevi toted surface water in the vi eS Of Cy of both <br />the Nucla Nine and Nucta East mtning area. NPOES ford 007 has axntbi tad oceasf anal <br />sxcesdences of selected standards for xatara intended for agriculture and domestic use. A <br />eompari son of water quality at NPDES 001 and surface we ter sites located al on9 Tuttle Drnw <br />(SW-Nt and SN-N3) demonstrates that runoff from reelained araaa has little impact on <br />receiving stream water quality. <br />Tablas 17-14 and 17-26 previously awrntt onetl, present mean annual vat uea of seleeE chemf cal <br />parameters repreaentati ve of both the irri Batt on end non-irrigation seasons at NPo6 Site <br />001 and Stte Slil-N3. Table 17-29 is a si miler table containing eel act water quality values <br />repreaentati ve of both seasons at St to SW-N1. Site S1'f-Nt is ai tasted upstream of ni nt ng <br />on Tuttle Draw, and SW-N3 is the roost downstream moni tors ng ai is located along Tuttle <br />Drax. DS seharge from NPOFS OOt eventually flows Into Tuttle Draw ~uat upstream of Bite <br />SN-N3 (see Fxhi bit 77-t, lab 7. Nydrologte Deeeri ptS on). <br />Upon perusal of these tables, it is generally evident That total di asolved solSda (TDS) <br />has not ahorm a conaf stent trond toward increased concentrati ens over tf aie. At Slts <br />17-88 Revi aed 04/11/88 <br />• <br />REVISED MARCH 2006 Attachment 2.05.6(3)-2-100 <br />