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Transportation and Circulation Truck traffic transporting material from the off-site alternative to the market in the Tracy area would travel a shorter distance than the project. The traffic impacts along major roadways and highways from the Vernalis area to the Tracy area, such as SR 132 and Interstate 5,would be reduced with this alternative. However, impacts to the off-site alternative local roadways and intersections would be similar to those of the project. Transportation and circulation impacts would be similar or could be less than those associated with the project due to the shorter distances traveled by the trucks and fewer major roadways impacted within San Joaquin County. (Draft EIR,p. 5-17.) Noise The noise generated by mining equipment, excavation activities, and processing operations at the off-site alternative would be similar to the project. The off-site alternative includes adjacent and nearby rural residences in a greater number than at the project site. This would result in a greater number of residences being impacted by an increase in ambient noise levels from the mining operations. Traffic noise would also increase on nearby roadways used to access the quarry. The off-site alternative would result in similar noise impacts as the project,but to a greater number of residences in the area. Mitigation measures similar to those identified in Section 4.5 would be required. (Draft EIR, p. 5-17.) Air Quality The dust generated by project construction, the emissions generated by the mining and processing operations, and the diesel particulate emissions from stationary and mobile sources would be similar to the project. The off-site alternative includes adjacent and nearby rural residences in a greater number than at the project site. This would result in a greater number of residences being impacted by dust and other emissions from the mining operations and traffic. The off-site alternative would result in similar air impacts as the project,but to a greater number . of residences in the area. Mitigation measures similar to those identified in Section 4.6 of the Draft EIR would be required. (Draft EIR,p. 5-17.) Geology and Soils/Mineral Resources The slope instability, erosion, and seismic impacts associated with the off-site alternative would be similar to those of the project. Mitigation measures similar to those identified in Section 4.7 of the Draft EIR would be required. (Draft EIR,p. 5-17.) Hydrology and Water Quality The off-site alternative contains rural residential housing and agricultural crops that most likely use groundwater wells for domestic and irrigation uses. The off-site alternative has two creeks that cross the site in two different areas. Hydrology impacts would be increased with the off-site alternative if the creeks were to be mined out as,in the project Mining Plan Option 2. This would result in a significant impact of altering the natural hydrology of these creeks, the same as the project, Mining Option 2. Otherwise, the creeks would be avoided by providing a 100-foot buffer 54