GENERAL42877 - Laserfiche WebLink

Home Browse Search

Coa/Methane Dmrna,¢e Projcct- Panck 76-74 Wert E!k A4rne • Pm¢c 3-9 Alternative 2 includes construction and use of 6 drainage crossings and use of 11 existing drainage crossings. Eight crossings would be decommissioned when the temporary roads aze obliterated by 2008, leaving 7 crossings remaining on previously existing classified roads and 2 crossing remaining on the Sylvester Gulch Project Access Route.. Although the conditions for project approval (Section 2.4.1) include mitigation measures to decrease impacts, some sedimentation would occur in steams during road construction, road use, and road decommissioning. 3.1.2.5 Alternative 3, Minnesota CreeklHorse Gulch Access New road construction would result in a 30 foot wide disturbance area. Construction of roads on locations where roads historically existed would result in ] 5 feet disturbance width. Estimated surface disturbance for road construction in Altemative 3 would be 25.] acres. Estimated surface disturbance for road decommissioning would be 59.6 acres. Estimated surface disturbance for construction and obliteration of 54 drill pads would be 37.8 acres. Although the conditions for project approval (Section 2.4.1) include mitigation measures to decrease impacts, this disturbance would result in soft movement, erosion, and reduction in productivity. Altemative 3 includes construction and use of 5 drainage crossings and use of 11 existing drainage crossings. Nine crossings would be decommissioned when the temporary roads aze obliterated by 2008, leaving 7 existing crossings remaining on classified roads. Although the conditions for project approval (Section 2.4.1) include mitigation measures to decrease impacts, some sedimentation would occur in steams during road construction, road use, and road decommissioning. 3.1.2.6 Alternative 4, Sylvester Gulch Short-Term Access New road construction would result in a 30 Foot wide disturbance area. Construction of roads on locations where roads historically existed would result in 15 feet disturbance width. Estimated surface disturbance for road construction in Alternative 4 would be 29.5 aces. Estimated surface disturbance for road decommissioning would be 56.4 acres. Estimated surface disturbance for construction and obliteraUOn of 54 drill pads would be 37.8 acres. Although the conditions for project approval (Section 2.4.1) include mitigation measures to decrease impacts, this disturbance would result in soil movement, erosion, and reduction in productivity. Alternative 4 includes construction and use of 6 drainage crossings and use of 11 existing drainage crossings. Ten crossings would be decommissioned when the temporary roads are obliterated by 2008, leaving 7 existing crossings remaining on classified roads. Although the conditions for project approval (Section 2.4.1) include mitigation measures to decrease impacts, some sedimentation would occur in steams during road construction, road use, and road decommissioning. 3.1.2.7 Alternative 5, Modify Plan to Comply with Lease Stipulations Without Exception 1n Altemative 5, no toads, drill pads, or IvIDWs would be constructed in locations where exceptions to lease stipulations would be required, specifically azeas over 60 percent slope, in high geologic hazazd area, or within the WIZ. New road construction would result in a 30 foot wide disturbance area. Construction of roads on locations where roads historically existed would result in 15 feet disturbance width. Estimated surface disturbance for road constmction in Alternative 5 would be 22.2 acres. Estimated surface disturbance for road decommissioning would be 54.5 acres. Estimated surface disturbance for construction and obliteration of 40 drill pads would be 28 acres. Although the conditions for project approval (Section 2.4.1) include mitigation measures to decrease impacts, this disturbance would result in soil movement, erosion, and reduction in productivity. EnusronmentalArre.rrment P~®P/AIwv. C/G/LI/!M/ )/~/0)EI VIFI I/f/43 sY