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CHAPTERFOUR Environmental Consequences and Mitigation <br />quality standard. No days of visibility change were noted in the far-field analysis, and all <br />deposition rates were well below the threshold for deposition impacts. <br />Mitigation Measures <br />Mitigation measures and emissions controls will be implemented to reduce particulate <br />matter/fugitive dust emissions during construction and ongoing production activities. Fugitive <br />emissions from all vehicles traveling on non-paved surfaces during all project phases will be <br />controlled utilizing chemical suppression applied to the non-paved roads. Storage piles will be <br />watered as necessary to limit wind erosion potential and reduce fugitive emissions. Most coal <br />transfer points and processing activities during coal production will be enclosed and, therefore, <br />limit fugitive particulate matter emissions. <br />Alternatives Carried Forward for Further Consideration <br />Grade-Separated Crossing at CR M.8 <br />Impacts maybe marginally lower than the proposed action, as vehicles would not be stopped and <br />idling at the CR M8 crossing. <br />Four-Quadrant Traffic Control Devices <br />Impacts would not be substantively different from the proposed action. <br />Transmission Line Alternative A <br />Impacts would not be substantively different from the proposed action. <br />Transmission Line Alternative B <br />Impacts would not be substantively different from the proposed action. <br />Transmission Line Alternative C <br />Impacts would not be substantively different from the proposed action. <br />4.2.2 Cultural Resources <br />No Action Alternative <br />The No Action Alternative would not affect any significant cultural resources. <br />Proposed Action Alternative <br />Mine and Facilities <br />Construction of the mine and related facilities would not affect any significant cultural resources. <br />Lease Area <br />The proposed lease area has not be surveyed for cultural resources; therefore, it is not known if <br />there are any significant cultural resources that might be affected by potential future subsidence <br />in this area. A few surveys have been conducted for other undertakings that covered portions of <br />the proposed lease area that allow for the estimation of the types of cultural resources that may <br />be present. These types of resources include prehistoric sheltered and open camps; prehistoric, <br />4-62 <br />DBMS 617 <br />