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Environmental Assessment Bowie Resources, L.L.C. August 2005 Spruce Stomp Federal Coal Exploration License (150- 2005 -43) 2. Construction would be conducted in a manner that maintains acceptable water quantity and quality conditions, minimizes sedimentation, and prevents spills in or around aquatic environments. In addition, reclamation activities would be assessed for effectiveness with regard to terrestrial wildlife. If an active raptor nest is identified, no new permanent surface facilities or disturbances shall be located within a 0.5 -mile radius buffer zone around identified this site. 4. All staging areas and storage areas would have containment berms in order to eliminate the possibility stormwater or containment runoff. 5. Drilling activities would be prohibited from December 1 to June 15 to protect elk on the winter range for drill holes PRP -SS -4, PRP -SS -S, and PRP -SS -9. 6. To protect nesting Goshawks no activities shall be allowed within one quarter mile of an active goshawk nest from March 01 to July 31 or until fledging of young birds from nest has occurred if activities could cause nesting failure or abandonment. 3.2.4 Water Resources The area of potential affect for water resources is comprised of the Terror Creek drainage watershed that traverse the SSCEL. This section includes both quantity and quality of both groundwater and surface water resources. The cumulative effects study area evaluated includes Terror Creek and Hubbard Creek watersheds (Figure 3 -5). 3.2.4.1 Affected Environment There are two hydrologic systems associated with the SSCEL, surface water and groundwater. Surface water generally flows south and southeast along the East Fork and West Fork of Terror Creek, respectively. Groundwater occurs in both alluvial and colluvial deposits and in the Wasatch and Mesaverde Formations. Surface water Occurrence The Terror Creek drainage basin has an area of 29.4 square miles, with a maximum drainage length of 12.4 miles. Elevations within the drainage extend from Rex Reservoir at 11,200 feet MSL to the confluence with the North Fork of the Gunnison River at 5,470 feet MSL (USDA -FS 2001, BLM AND GMUG 2000). The SSCEL comprises 20 percent of the Terror Creek drainage basin with elevations ranging from 9,300 feet MSL near Windy Point to 7,280 feet MSL on the East Fork of Terror Creek. There are two named creeks within the SSCEL portion of the Terror Creek watershed: the East Fork of Terror Creek, which flows south through the eastern portion of the SSCEL; and the West Fort of Terror Creek, which flows southeast through the western portion of the SSCEL. The confluence of the East and West Forks of Terror Creek is approximately 0.5 miles south and down - gradient of the SSCEL southern boundary. Between 1996 and 1998 four points were established to measure discharge in the Terror Creek drainage. Two of the points are on the East Fork of Terror Creek: 1) Cottonwood Stomp is 3 -20