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as in the project Mining Plan Option 1. All other hydrology and water quality impacts and the mitigation measures provided in Section 4.8 of the Draft EIR, such as groundwater seepage in the mining excavations causing evaporation loss and threatening groundwater quality, potential spills of hazardous materials reaching the groundwater, potential for contaminants to enter the groundwater if excavation disturbs and/or truncates the existing groundwater well shafts, and groundwater extraction that could lower groundwater levels in areas beyond the site would be similar to the project. Impacts to groundwater quality from contaminants entering disturbed/truncated wells could be greater since it is assumed that with additional residential uses surrounding the site, there are more wells in the area. (Draft EIR,pp. 5-17 to 5-18.) Biological Resources The off-site alternative contains similar features as the project, such as agricultural crop land, creek beds, and rural residential structures. The potential to impact wetlands and special status species exists at this site. However, a biologist would need to perform a preliminary review of the off-site alternative to determine the potential for wetlands and special-status species at the site. The off-site alternative is located entirely within San Joaquin County, so for this alternative, the applicant would be able to comply with the SJMSCP as set forth in Mitigation Measures 4.9.2a- d. Complying with the SJMSCP would provide for pre-construction surveys, impact avoidance and minimization measures, and preservation of open space as mitigation. Biological impacts associated with development at this site would be similar or could be greater, depending on the outcome of the necessary surveys, than those associated with the project. (Draft EIR, p. 5-18.) Cultural Resources No cultural resources were found at the project site. It is unknown if cultural resources exist at the off-site alternative,but it is likely that since the area has been highly disturbed from agricultural activities, no surface resources exist. If this alternative is chosen, a cultural resources record search and survey would need to be completed. The potential to uncover unidentified buried archaeological remains or human remains would be similar to or could be greater than that of the project site, depending on the outcome of the necessary survey. Mitigation identified for the project would be applicable under this scenario. (Draft EIR, p. 5-18.) Hazards and Hazardous Materials The off-site alternative contains similar features as the project, such as agricultural crop land, creek beds, and rural residential structures. Therefore, it can be assumed that the types of hazardous materials that might exist at the off-site alternative would be similar to those of the project. An assessment of the off-site alternative would need to be completed to determine if any hazardous materials or contamination exist on the site or if there is a potential for contamination at the site from any off-site sources in the area. Hazards and hazardous materials impacts associated with this alternative would be similar or could be greater, depending on the outcome of the necessary assessment, than those associated with the project. (Draft EIR,pp. 5-18 to 5-19.) Visual Resources 55