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Table 3. 2016 Alternative test C, the Similarity Index between the Lifeform Species Density <br />Values for the Prescribed Lifeforms for the Bond Release Area and the Mean Species <br />Density. <br />Area <br />Technical Standard (%) <br />Similarity Index <br />BRB-2a <br />63 <br />66 <br />BRB-3 <br />63 <br />98 <br />Since the technical standard is greatly exceeded by the similarity index for the BRB-2a and <br />BRB-3 Alternative test C is passed for these areas. <br />Table 4. 2017 and 2018 Native Species Presence Assessment for the Phase II Bond Release <br />Area. <br />Area <br />Performance Standard <br />Cumulative Number of <br />Native Species <br />BRB-2a <br />23.3 <br />46 <br />BRB-3 <br />12.6 <br />36 <br />Each area was greater than the weighted reference area average species density, hence <br />Alternative Test D is passed. <br />SEDIMENT DEMONSTRATION <br />Phase II - Suspended Solids Evaluation <br />The Yoast Mine lies within the headwaters of Grassy Creek and Sage Creek watershed. The <br />southwest portion of the permit drains to the west towards Sage Creek, which ultimately flows to <br />the north-northeast towards the Yampa River. A small area on the southeastern end of the permit <br />drains southeast towards Grassy Creek, which flows to the northeast near the southern end of the <br />permit area before bending to the north towards the Yampa River. The remainder of the permit <br />area drains to the north-northeast towards Annand Draw. Annand Draw reports north to <br />Scotchmans Gulch, which flows to the east-northeast to Grassy Creek. Runoff from the <br />reclaimed mine discharges from five NPDES Outfalls: Outfalls 010 located near the northern <br />end of the mine discharges to Annand Draw, Outfall 011 discharges to the southeast to an <br />unnamed tributary of Grassy Creek, and Outfalls 012, 013, and 014 located along southwest <br />permit boundary all discharge to unnamed tributaries to Sage Creek (Map 1). <br />SL-8 - 9 <br />