2016-01-14_REVISION - M1983194 ‎(2)‎

• Permit No: M1983194
• IBM Index Class Name: Revision
• Doc Date: 1/14/2016
• Doc Name: Mine Plan Mod 500K TPY
• From: Natural Soda, LLC
• To: DRMS
• Email Name: THM
• Email Name: GRM
• Media Type: D
• Archive: No

Daub & Associates, Inc. Page 3-IV 2015 NS Mine Plan Modification
1/5/2016 Section 3 General Site Conditions
LIST OF TABLES
Table 3-1. Average monthly temperatures and normal precipitation for
northwestern Colorado. ................................................................... 3-13
Table 3-2. Colorado and Federal Air Quality Standards. ..................................... 3-15
Table 3-3. Regional ambient air quality data (micrograms/cubic meter). ............. 3-18
Table 3-4. Summary of air quality data between February 1975 and
November 1980, Tract C-a. ............................................................. 3-19
Table 3-5. Background estimates of air pollution near Piceance Creek Basin. .... 3-20
Table 3-6. Analyses and procedures for determining soil suitability for topsoil. ... 3-26
Table 3-7. Topsoil results of soils analyzed in the Project Area. .......................... 3-28
Table 3-8. General soil, vegetation and topography relationship. ........................ 3-30
Table 3-9. Acreages of Soils within the Sodium Lease and Project Area. ........... 3-31
Table 3-10. Topsoil suitability criteria. .................................................................. 3-38
Table 3-11. Vegetation type distribution in the Sodium Lease and Project
Area. ................................................................................................ 3-45
Table 3-12. Sampled percent cover data for Big Sagebrush Shrubland
transects. ......................................................................................... 3-46
Table 3-13. Percent cover data for Pinyon-Juniper Woodland transects. ............ 3-48
Table 3-14. Plant species inventory for the Natural Soda LLC nahcolite
project .............................................................................................. 3-55
Table 3-15. Ground cover for native rangeland (control) in the Project Area
from 2006-2014. .............................................................................. 3-61
Table 3-16. Biomass production from native rangeland in the Project Area
from 2006-2014. .............................................................................. 3-62
Table 3-17. Plant species composition for native rangeland in the Project
Area from 2006-2014 ....................................................................... 3-62
Table 3-18. Native rangeland ground cover, biomass production, and species
composition in the Project Area, August 2014. ................................ 3-63
Table 3-19. Cover, productivity and density of sampled plant species on the
Natural Soda LLC solution mining-nahcolite project lands. ............. 3-65
Table 3-20. Wildlife species (by order) other than bats, expected to occur in
habitats in the vicinity of the Natural Soda LLC solution mining –
nahcolite project. ............................................................................. 3-70
Table 3-21. Habitat preference of common species of songbirds. ....................... 3-77
Table 3-22. Important habitat features for various species of animal found in
the Project Area. .............................................................................. 3-92