RES 201131 - Laserfiche WebLink

Site(s) affected: All sites within the EDZ area determined by the RWQCB or DTSC to require the installation of vapor barriers in buildings. (Draft SEIR, pp. 4.E-27 to 4.E-28.) Impact 4.E-5c and 4.E-5d Development facilitated by the Project could potentially emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one- quarter mile of an existing or proposed school; and could be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code §65962.5 and, as a result, create a significant hazard to the public or the environment. The Revised Final SEIR evaluates the potential for development within the Project to emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school, as well as the impacts related to the potential for sites proposed for development within the Project to be included on a list of hazardous materials sites compiled pursuant to Government Code §65962.5. Significance Before Mitigation: Significant Significance After Mitigation: Less than Significant Finding: Changes have been incorporated into the Project that would avoid the significant environmental effect as identified in the Revised Final SEIR. Mitigation Measures 4.E-7 and 4.E-8,which are incorporated into the Project, will reduce the significant environmental impact to a less than significant level. Facts in Support of Finding: The following facts and mitigation measures indicate that the impact will be reduced to less than significant. 1. Development of sites known to be formerly contaminated by hazardous materials or wastes would occur within the Project, and remaining and/or previously unidentified contamination may be present on or below the ground surface within the area of the Project. Encountering contaminated soil, surface water, or groundwater without taking proper precautions during site remediation within the Project could result in the exposure of construction workers or others to hazardous materials and consequently result in associated significant adverse human health and environmental impacts. 2. Implementation of Mitigation Measures 4.E-7 and 4.E-8, which are listed above under Impact 4.E-5b, and set forth in Table 5-1 of the Final SEIR and listed in the RMMRP, will ensure that Impact 4.E-5 would be reduced to a less- than-significant level and are hereby incorporated by reference.