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SUMMARY (Continued) . Management, the Utah Division of Wildlife Resources, and the Fish and Wildlife Service. Construction materials The aggregate for the road base and miscellaneous other uses would come from the alluvium along Muddy Creek at the mouth of each wash and would consist of about 35,000 cubic yards at Hanksville Salt Wash and about 53,000 cubic yards at Emery South Salt Wash. Approximately 5 acres at each of the washes would be disturbed. Reclamation's procedures for earth disturbance require erosion and, therefore, sediment control measures to be in-place during construction. A free-use permit would be obtained from the BLM, and the material would not be removed from areas where there are existing mining claims. All material source areas would be recontoured and revegetated after construction. Because of the minimal need for concrete, existing commercial sources would truck it to each construction site. Most of the other construction materials needed for the recommended plan--such as PVC pipe, steel, instrumentation, other manufactured items, and cement for concrete--are manmade and would be shipped to the sites. The closest rail service is provided through Green River, Utah, by the Denver and Rio Grande Western Railroad. Scenery . Under the no-action alternative, no significant changes in the local scenery are expected. Over the short term with the recommended plan, heavy equipment, increased human activity, and construction work would temporarily detract from the scenery in both washes. Over the long term, unit features, such as powerlines and brine collection and injection facilities, would continue to detract from the scenery for the life of the unit. Reclamation would coordinate planning of site-specific project features with the BLM to ensure maintaining visual resource quality. Air and noise quality The no-action alternative would have no effect on the air and noise quality in the unit area. The recommended plan would have short-term effects on air and noise quality during construction. Emissions and dust from construction equipment and the moving of earth and aggregate would increase particulate levels and decrease local air quality during con- struction, but dust abatement procedures, such as watering down work areas, would minimize these effects. Noise generated by construction equipment would be concentrated at the isolated construction sites and would not affect the local population. On-site air and noise levels would be within limits defined by Federal standards. Long-term effects to air and noise quality would result from operation and maintenance activities, but would not be significant. Geology, mineral resources, and seismicity . Under the no-action alternative, the potential effects described below would not occur; rather, existing conditions would prevail. The S-16 002324