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Habitat Type Impact hype Impact Amount Mitigation Ratio Mitigation Needed Proposed Mitigation Riparian Habitat Temporary Impact 0.36 acre 1.5:1 0.54 acre • 0.09 acre to be seeded/mulched and planted with approximately 1,000 willow stakes during Phase 1 and planted/mulched with 40 riparian trees during Phase 2 (Mitigation Area 5 on Table 4). • 0.45 acre to be restored in place at end of Phase 3 along Ralston Creek (seeding, planting trees, and staking willows). Permanent Impact 0.1 acre 2:1 0.2 acre • 0. 07 acre to be mitigated onsite during Phase 1 (Mitigation Areas 2 -4 on Table 4). • 0.13 acre to be mitigated at end of Phase 3 along Ralston Creek. Upland Habitat Temporary Impact 1.3 acres 1.5:1 1.95 acres • 1.3 acres to be restored in place during Phase 1 (seeding/mulching and planting of Mitigation Area 6 on Table 4). • 0.65 acre to be restored at end of Phase 3 (upland seeding/mulching only). Permanent Impact P 0 acre 2:1 0 acre • 0.09 acre to be mitigated onsite during Phase 1 (Mitigation Area 1 on Table 4). Riparian Trees Permanent Impact 170 trees Varies Depending on dbh* 252 Riparian Trees • 40 riparian trees to be planted /mulched during Phase 2 (Mitigation Area 5 on Table 4). • 212 riparian trees to be planted/mulched during Phase 3 along Ralston Creek. Upland Trees Permanent Impact 10 trees Varies depending on dbh* 18 Upland Trees • 18 upland trees to be planted /mulched during Phase 1 (Mitigation Area 6 on Table 4). IRIS MITIGATION AND DESIGN, INC. Environmental Consulting *dbh = diameter breast height Schwartzwalder Mine Phase 1 Response to USFWS Comments Table 1 Mitigation for Phase 1— Total Impacts Page 4 IRIS MITIGATION AND DESIGN, INC. 3450 W. 32nd Avenue, 2nd Floor Denver, Colorado 80211 Phone: 720 - 272 -1985 bleisure@irismitigation.com October 2011