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Public Health and Safety Like the proposed project,the MHMP Buildout Alternative would include development of mixed uses across the 815-acre project site and development of utilities infrastructure and roadways within the off-site infrastructure sites. Like the proposed project,this alternative would result in: a significant potential for exposure to preexisting hazardous materials(including listed hazardous materials sites), a less-than-significant potential for exposure to hazardous materials associated with upset and accident conditions, a less-than-significant potential to emit hazardous emissions or handle hazardous materials within one-quarter mile of a school, a significant potential for exposure to hazardous materials associated with locating a school site in an area of potential hazards, r a significant potential for exposure to pipeline hazards, and a less-than-significant potential for exposure to EMFs. However,this alternative would include 376 more residential units(and associated residents and school age children)than the proposed project and thus could potentially expose a larger permanent on-site population to preexisting hazardous materials than the proposed project. Also,although School A would be located well away from the existing PG&E natural gas pipelines and Chevron crude oil pipeline under the proposed project(Figure 3-6B in Chapter 3,"Project Description"), School A under this alternative would be located adjacent to or close to these pipelines(Figure 3-4) and could potentially be inconsistent with CDE school siting requirements,thus — requiring relocation. Finally, although the proposed project would provide setbacks between the pipeline easements and proposed residences,thus greatly limiting the number of residences proposed within the pipeline No Build Zone and Hazard Notification Zone(Figure 4.9-4 in Chapter 4.9,"Public Health and Safety"),no such setbacks are proposed under the MHMP Buildout Alternative.[Greater] Biological Resources Both the MHMP Buildout Alternative and the proposed project would disturb the 815-acre project site and off- site infrastructure sites. Like the proposed project,this alternative could result in: a less-than-significant impact on general biological resources and their habitat, a significant impact on special-status plants, a less-than-significant impact on special-status amphibians and reptiles, a less-than-significant impact on Swainson's hawk, a significant impact on burrowing owl, a significant impact on other nesting raptors, a significant impact on other special-status nesting birds, a less-than-significant impact on loss of foraging habitat for other special-status birds, a significant impact on San Joaquin kit fox, a significant impact on jurisdictional waters of the United States, and a less-than-significant impact on trees. Because the MHMP Buildout Alternative and the proposed project would convert the 815-acre project site from agricultural to urban uses and would include construction with most of the off-site infrastructure sites,the biological resources impacts would be similar between these two scenarios. College Park at Mountain House Specific Plan III Draft EIR EDAW San Joaquin County 5-13 Alternatives to the Proposed Project