2019-11-27_PERMIT FILE - M2019058 ‎(20)‎

• Permit No: M2019058
• IBM Index Class Name: Permit File
• Doc Date: 11/27/2019
• Doc Name Note: Appendix 1 - Environmental Resource Report
• Doc Name: Application
• From: Colorado Sand Company LLC
• To: DRMS
• Email Name: MAC
• Email Name: BFB
• Media Type: D
• Archive: No

Appendix-12
Keenesburg Project RETTEW Project No.114782000
Colorado Sand Company LLC April 26,2019
4.3 Soil Bore Logs
Exploratory soil borings were completed within the southwest quarter of Section 12 and are depicted on
the Soils Map provided in Appendix A, Figure 3. Detailed bore logs are provided in Appendix F. Borings
were completed to determine soil profiles, moisture content,groundwater depths, and bedrock depths.
5.0 VEGETATION
During the field investigation, vegetation data was collected at the sample points depicted on the aerial
basemap provided in Appendix A, Figure 2, and recorded on sample data forms provided in Appendix C.
Vegetation across the site is primarily composed of various grasses, prickly pear, yucca, and sand
sagebrush.Trees are largely absent within the project area,with the exception of a grove of Russian olive
trees in the southeast uarter of the Section 12. Most of the project area consists of grazed grasslands
with patches of sagebrush and a significant amount of bare ground(30 to 70 percent).Shrub cover ranged
from 0 to 30 percent cover.A summary of the plant species identified within this grazed upland habitat is
provided in Table 5.1 below. Root depth at each sample point was approximately six inches deep.
Table 5.1—Vegetation Species at Upland Sample Point
Sample Point
Species 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1
2
Shrub Stratum
Sand sagebrush
• • • • • • • • • • • • • • • •
(Oligosporus filifolius)
Yucca
(Yucca glauca)
Twistspine priklypear
(Opuntia macrorhiza)
Herb Stratum
Blue grama grass
• • • • • • • • • • • •
(Chondrosum gracile)
Cheatgrass
• • • • • • • • • • • • • • • • • • • • •
(Bromus tectorum)
Needle and thread
• • • • • •
(Hesperostipa comata)
Western Wheatgrass
• • • • • • • • • •
(Pascopyrum smithii) • • • • •
Little bluestem
(Schizachyrium • • • • •
scoparium)
Saltgrass
•(Distichlis spicata)
Indian ricegrass
(Oryzopsis •
hymenoides)
The landscape is relatively homogenous. However,vegetation in portions of Ennis Draw, especially those
areas containing ponded water and saturated soils, was distinctly different from the surrounding upland
areas and was documented by sample points W1, W2, and W3. Wetland habitat conditions were
documented within En is Draw at these locations. A summary of the plant species identified at the
wetland sample points is provided in Table 5.2 below.
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