2013-02-20_REPORT - M1977300

• Permit No: M1977300
• IBM Index Class Name: REPORT
• Doc Date: 2/20/2013
• Doc Name: Constr. Activity Actual Area Impact and Mitigation Progress Reports.
• From: IRIS Mitigation and Design, Inc.
• To: COE and DRMS
• Email Name: TAK
• Media Type: D
• Archive: No

Area
2011 Permitted Impact to
Habitat Areas - Acres
2011 Required
Mitigation - Acres
2011 Required Mitigation
in Phase 1
2011 Required Mitigation
in Phase 3
Upland Permanent 2:1
(previously disturbed)
0.04 Acre
0.08 Acre
0.09 Acre Mitigation on -site with
150 upland shrubs
Upland Permanent 2:1
(previously undisturbed)
Upland Temporary 1.5:1
(previously disturbed)
1.3 Acres
1.95 Acres
1.3 Acres Restored, Planting of
120 Upland Shrubs and 18
Upland Trees
0.65 Acre restored at End of
Phase 3, Seed /Mulch Only
Upland Temporary 1.5:1
(previously undisturbed)
Riparian Permanent 2:1
(previously disturbed)
0.1 Acre
0.2 Acre
0.07 Acre (0.04 + 0.02 + 0.01
Acre), Seed /Mulch , Planting of
120 Riparian Shrubs
0.13 Acre at End of Phase 3
Riparian Permanent 2:1
(previously undisturbed)
Riparian Temporary 1.5:1
(previously disturbed)
0.36 Acre
0.54 Acre
0.09 Acre Restored,
Seeded /Mulched, Planting of
1,000 Willow Stakes and 40
Riparian Trees
0.45 Acre at End of Phase 3 - 212
Riparian Trees to be Planted
Riparian Temporary 1.5:1
(previously undisturbed)
Total
1.8 Acres Impacted
2.77 Acres Total
Mitigation Needed
1.55 Acres Phase 1
Mitigation
1.23 Acres Phase 3
Mitigation
TABLE 1
2011 PERMITTED AREA IMPACT FOR PHASE 1 SCHWARTZWALDER MINE