2017-05-04_REVISION - C1981010 ‎(2)‎

• Permit No: C1981010
• IBM Index Class Name: Revision
• Doc Date: 5/4/2017
• Doc Name: Application
• From: Trapper Mining Inc
• To: DRMS
• Type & Sequence: PR8
• Email Name: RAR
• Email Name: DIH
• Media Type: D
• Archive: No

Page 7 of 8
PR8 Letter to Robin Reilley
May 3, 2017
Pages 2-391 a —through 2-391 z (added text including Figures 2.7-4a and 2.7-4b and
Tables 2.7-8a through 2.7-8c)
Page 2-4141 through 2-414n (added/edited text including Table 2.7-12c and Figure 2.7-15f)
Page 2-451 s (added/edited text)
Pages 2-451 v through 2-451 x (Table 2.7-18b)
Page 2-588 (added/edited text)
Page 2-590 (added/edited text)
Page 2-591 (added/edited text)
Page 2-591b to 2-591c (added/edited text)
Page 4-177 (added/edited text including Table 4.8-3)
Pages 4-185, 4-186 and 4-186a (added/edited text including Table 4.8-6)
Pages 4-189, 4-190 and 4-190a (added/edited text including Table 4.8-7)
Tables (tables are included in replacement pages listed above)
Table 2.3-25 PR -7 Mine Expansion Area List of Observed Plant Species (pages 2-122c to k)
Table 2.5-5 Vegetative Productivity by Soil Type (page 2-181a)
Table 2.6-7 Soil Mapping Units Presented Within the PR -7 Mine Expansion Area
(page 2-345c)
Table 2.6-8 Soil Mapping Units and Acreages Within PR -7 Mine Expansion Area
(page 2-345f)
Table 2.6-9 Chemical and Physical Properties of the PR -7 Mine Expansion Area Soils
(pages 2-3451 to 2-345n)
Table 2.6-10 NRCS Physical Properties of Soils (page 2-345o through 2-345r)
Table 2.6-11 NRCS Chemical Properties of Soils (pages 2-345s and 2-345t)
Table 2.7-8a Overburden Laboratory Analyses and Methods for the PR -7 Mine
Expansion Area (page 2-391b)
Table 2.7-8b Overburden Geochemical Drill Hole Lithology and Sample Intervals for the PR -7
Mine Expansion Area (Pages 2-391c through 2-391h)
Table 2.7-8c Overburden Geochemical and Physical Laboratory Analytical Results for the
PR -7 Mine Expansion Area (pages 2-391i through 2-391r)
Table 2.7-12c Visual Flow Observations in Deacon Gulch and Jeffway Gulch (page 2-414m)
Table 2.7-18b Water Quality Sampling Results for Jeffway Gulch (pages 2-451v to 2-451x)
Table 4.8-3 Diversion Ditch Sizing (page 4-177)
Table 4.8-6 Sediment Pond Summary Information (pages 4-185, 4-186 and 4-186a)
Table 4.8-7 Embankment Design (Pages 4-189, 4-190 and 4-190a)
Figures and Mans (figures are included in replacement pages listed above. large mans are not
Figure 2.7-4a PR -7 Mine Expansion Area Overburden Soil Texture Classification
(page 2-391s)
Figure 2.7-4b Box and Whisker Plots of Overburden Water Soluble and Extractable Metals for
the PR -7 Mine Expansion Area (page 2-391t)
Figure 2.7-15f Trapper Mine Deacon and Jeffway Gulch Monitoring Locations (Page 2-414n)
Map M29A — Soil Units for PR -7 Mine Expansion Area (new map)
Map M36 — Overburden Study
Map M45 — Cultural Resource Surveys Conducted on and adjacent to the Trapper Mine
Map M48A — Vegetation Map, Trapper Mine (new map)
Map M51 — Drainage and Sediment Control Plans