2010-04-26_PERMIT FILE - C1980007A ‎(14)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 4/26/2010
• Doc Name: Wetland Delineation Report
• Section_Exhibit Name: Exhibit 82 Appendix I
• Media Type: D
• Archive: Yes

WETLAND DETERMINATION DATA FORM —Western Mountains, Valleys, and Coast Region
Project Site: MCC Refuse Pile Expansion, East City /County: Somerset/Gunnison Sampling Date: 10- 8-2009
Applicant/Owner: Mountain Coal Company, LLC State: CO Sampling Point: WA -WET
Investigator(s): Genesis Humphrey, Barr Engineering Company Section, Township, Range: 815, TI 3S, R90W
Landform (hilislope, terrace, etc.): Terrace Local relief (concave, convex, none): Concave Slope ( %): 2-5
Subregion (LRR): E- Rocky Mountain Forest & Rangeland Let: 38.92731 Long: - 107.42451 Datum: NAD 1983
Soil Map Unit Name: 74- Torriothents - Haplargids Complex, Very Stony NWI classification: No Data Available
Are climatic/ hydrologic conditions on the site typical for this time of year? Yes ® No ❑ (if no, explain in Remarks.)
Are Vegetation ❑, Soil ❑, Or Hydrology ❑, significantly disturbed? Are "Normal Circumstances" present? Yes ® No ❑
Are Vegetation ❑, Soil ❑, Or Hydrology ❑, naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS -- Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes ® No ❑
Absolute
% Cover
Hydric Soil Present? Yes ® No ❑
Is the Sampling Area within a Wetland? Yes ® No ❑
Wetland Hydrology Present? Yes ® No ❑
Remarks: WA is a seepage wetland located in a flat terraced area in an otherwise steep mountainside.
VFr:FTATInN - I Ica cr_ipnfifin nampc of nlantc
r1
Tree Stratum (Plot Size: N /A— no trees)
Absolute
% Cover
Dominant
Species?
Indicator
Status
Dominance Test Worksheet:
1 •
Number of Dominant Species That Are
2 (A)
2
OBL, FACW, or FAC:
3 •
Total Number of Dominant Species Across
2 (B)
4.
All Strata:
= Total Cover
Percent of Dominant Species That Are
100 (A/B)
Sapling /Shrub Stratum (Plot Size: N /A— no shrubs)
OBL, FACW, or FAC:
Prevalence Index worksheet:
5.
6.
Total % Cover of:
Multiply by:
7.
OBL species
x1 =
6.
FACW species
x2 =
9.
FAC species
x3 =
= Total Cover
FACU species
x4 =
Herb Stratum (Plot Size: 2'x38')
UPL species
x5 =
10. Typha latifolia
50
Y
OBL
Column Totals: (A)
(B)
11. Juncus arcticus
40
Y
FACW
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
12. Calamagrostis canadensis 20 N OBL
13. Polypogon monspeliensis
10
N
FACW
X Dominance Test is >50%
14. Eleocharis spp.
10
N
FACW
Prevalence Index is <3.0'
15. Ranunculus cymbalaria
5
N
OBL
Morphological Adaptations' (Provide supporting data in
16
Remarks or on a separate sheet)
17.
Wetland Non - Vascular Plants'
18.
Problematic Hydrophytic Vegetation' (Explain)
19.
20.
'Indicators of hydric soil and wetland hydrology must be present,
135
= Total Cover
unless disturbed or problematic.
Woody Vine Stratum (Plot Size: N/A — no vines)
1.
2.
= Total Cover
Hydrophytic Vegetation
% Bare Ground in Herb Stratum
Present? Yes
® No ❑
Remarks:
US Army Corps of Engineers
Western Mountains, Valley, and Coast — Interim Version