2014-08-19_PERMIT FILE - C1980007 ‎(11)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Wetland Delineation Report
• Section_Exhibit Name: Exhibit 82 Appendix I
• Media Type: D
• Archive: No

WETLAND DETERMINATION DATA FORM — Western Mountains, Valleys, and Coast Region
Project Site: MCC Refuse Pile Expansion, East City/County: Somerset/Gunnison Sampling Date 10-6-2009
Applicant/Owner: Mountain Coal Company, LLC State: CO Sampling Point: WA -WET
Investigator(s): Genesis Humphrey, Barr Engineering Company Section, Township, Range: S15, T13S, R90W
Landform (hillslope, 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 ❑
Hydric Soil Present? Yes ® No ❑
Is the Sampling Area within a Wetland? Yes ® No ❑
Wetland Hydrology Present? Yes ® No ❑
Prevalence Index worksheet:
Remarks: WA is a seepage wetland located in a flat terraced area in an otherwise steep mountainside.
VEGETATION — Use scientific names of plants
Tree Stratum (Plot Size: N/A — no trees) Absolute Dominant Indicator Dominance Test Worksheet:
% Cover Species? Status
1 • Number of Dominant Species That Are 2 (A)
2 OBL, FACW, or FAC:
3• Total Number of Dominant Species Across
4 All Strata—
Sapling/Shrub Stratum (Plot Size: NIA — no shrubs)
= Total Cover
Percent of Dominant Species That Are
OBL, FACW, or FAC: 100 (A/B)
Prevalence Index worksheet:
5.
6.
Total % Cover of: Multiply by:
7.
OBL species x1 =
8.
FACW species x2 =
9.
FAC species x3 =
= Total Cover
FACU species x4 =
Herb Stratum (Plot Size: 2'x38')
UPL species x5 =
10. Typha /atdolia
50
Y
OBL
Column Totals: (A) (B)
11. Juncus arcVcus
40
Y
FACW
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
12. Ca/amegrostis canadensis 20 N OBL
13. Po/ypogon monspeliensis
10
N
FACW
X Dominance Test is >50%
14. E/eocharis spp.
10
N
FACW
Prevalence Index is <3.0'
15. Ranunculus cymba/arfa
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: NIA — 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