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Environmental Assessment <br /> Table 1-4.Hay Gulch Citizen Advisory Panel Recommendations to La Plata County <br /> Number Hay Gulch Citizen Advisory Panel Recommendations <br /> 1 Reduce impacts to CR 120 by decreasing the number of coal haul trucks using CR 120 to <br /> 2010 levels until improvements to this road have been completed. <br /> 2 Coal haul trucks will cease operations on CR 120 from 10 PM to 6 AM Monday through <br /> Saturday and from 10 PM Saturday through 6 AM Monday. <br /> 3 If the number of coal haul trucks exceeds 144 per day, a separate coal haul road shall be <br /> installed and maintained by GCC. <br /> 4 As a contingency to approval of the Class II Land Use Permit,upgrades and improvements to <br /> CR 120 including replacing culverts,widening and paving the road surface from the mine <br /> entrance to State Highway 140 shall being immediately and be completed no later than <br /> January 1, 2017, at GCC's expense. <br /> 5 Additional measures shall be undertaken to reduce truck noise levels to 80 decibels or less. <br /> Continuous noise level monitoring shall be installed to ensure compliance. <br /> 6 On the gravel surface portions of CR 120, a speed limit of 25 mph will be established for <br /> trucks having a GVW of greater than 20,000 pounds. The speed limit of 35 mph will be <br /> established for all other traffic on CR 120. Additional GPS monitoring and speed enforcement <br /> should be required. <br /> 7 GCC should establish a dedicated phone number to report safety concerns or violations. <br /> 8 La Plata County should impose a road fee on GCC for the costs of maintaining CR 120 to <br /> levels safe for residents. <br /> 9 BLM should conduct a full EIS including a hydrological study to establish a baseline for <br /> quantity and quality of the aquifers surrounding the King II Mine and the Hay Gulch area. <br /> 10 GCC shall establish a minimum of six monitoring wells for the purpose of identifying <br /> contamination and depletion of aquifers below the mine and in the surrounding area. <br /> 11 Baseline establishment and continuous monitoring of water quality shall use guidelines <br /> established by the Colorado Mined Land Reclamation Division Table 1 (Groundwater) <br /> Section A (Suggested Water Quality Parameters). Additionally,the results of the chemical <br /> analysis shall be posted on a public access website at least monthly. <br /> 12 All regulatory agencies including La Plata County, CDRMS, OSMRE, and the BLM should <br /> strongly consider the impacts of the King II Mine plan on draw down of nearby non-tributary <br /> water zones. <br /> 13 GCC shall install a minimum of four continuous air monitors at various locations along CR <br /> 120 that will identify unhealthy air quality including particulates, dusts, fumes,vapors, and <br /> gases. Action levels consistent with National Institute for Occupational Safety and Health <br /> recommendations shall be established and specific action shall be taken to reduce thresholds <br /> to below accepted levels. Results shall be recorded and posted on a public access website. <br /> 14 Reduce noise levels of mine operations and truck traffic acceptable limits of no more than 80 <br /> decibels during the of 6 AM to 10 PM. Residential noise level limits of no greater than 50 <br /> decibels should be enforced between the hours of 10 PM and 6 AM. The use of`jake brakes" <br /> by truck drivers on CR 120 shall be restricted. <br /> 15 GCC shall establish an operations policy to ensure that vibration caused by the continuous <br /> miner and drilling is minimized to not impact nearby residents. <br /> DOI-BLM-CO-S010-2011-0074-EA <br /> September 2017 <br /> -30- <br />