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5.ARematives contain water that would be an attractant to disease vectoring mosquitoes.Impacts under this — alternative would be similar to those of the project. Mitigation identified for the project would be applicable under this scenario. Scenario 2: A reduction in the number of phases to be mined would not result in a significant reduction in the amount of hazardous materials stored and used at the site for the mining processes. Excavation, grading and construction activities would still occur at the site,during — which hazardous materials would be brought onto the site. The silt ponds and mining pits would still have the potential to contain water that would be an attractant to disease vectoring mosquitoes. Impacts under this alternative would be similar to those of the project. Mitigation identified for the project would be applicable under this scenario. Visual Resources Scenario 1: A reduction in the mining operations would not result in a reduction in visual impacts to the surrounding area.The scenic views of the Coastal Range Mountains and San Joaquin Valley would still be hindered from nearby residents and those traveling along local roads. Impacts would be similar to those of the project. Scenario 2: A reduction in the number of phases to be mined would result in a reduction in visual impacts to the residences located west of the Delta-Mendota Canal, which are closest to Phase V. The scenic views of the Coastal Range Mountains and San Joaquin Valley would still be hindered — from nearby residents and those traveling along local roads. Impacts would be similar to those of the project. — 5.2.3 Alternative 3-Offsite Alternative Description The off-site alternative locations selected for review included the Tracy area and the Laguna — Formation located along the foothills of the Sierra Nevada. The CDMG, in its mineral land classification report(Special Report 160,dated 1988),classified several resource sectors in the Tracy area. Many of these sectors were not, in 1988,controlled by an aggregate company and were not encroached upon by a competing land use. This area is closer to the majority of the market as reported by the CDMG. Additionally,the CDMG reported that the Laguna Formation located along the foothills of the Sierra Nevada may meet PCC grade aggregate. These areas were looked at for availability and accessibility of PCC grade aggregate.The off-site alternative would assess whether these sectors are available today for aggregate extraction. If so,the closer — proximity of an alternative site to the market may significantly decrease muck traffic. An off-site alternative in the Laguna Formation of the foothills was considered for inclusion in _ this EIR,but was rejected because of the lack of an adequate aggregate resource to meet the sponsor's basic objectives. This off-site alternative is further discussed in Section 5.4, Alternatives Considered but Rejected as Infeasible. _ RMC Pacific Vernalis Duarry Mining and Reclamation Project 5-14 ESA/203015 Draft Environmental Impact Report May 2006