ITEM 23 ATTACHMENT 1 - CEQA Checklist

City of Pleasanton—Merritt Property Project Consistency Checklist 15183 Consistency Checklist 118 not expected to result in the transport, use, storage, or disposal of substantial amounts of hazardous materials, with the exception of common residential and commercial-grade hazardous materials such as household cleaners and paint, among others. Several documented release sites are within 0.5 mile of the rezoned housing sites. (See Housing Element Update Draft EIR Table 3.8-1 and Exhibits 3.8-1a and 3.8-1b.) In addition, it is noted that Site 22 (Merritt) is a currently inactive California Department of Toxic Substances Control (DTSC) site but needs further evaluation regarding previously detected VOCs and organochlorine pesticides in soil and groundwater.18 Construction activities at these sites would likely involve ground-disturbing activities that could expose workers, the public, and the environment to contaminated soil and groundwater, if present. The Housing Element Update FEIR concluded that compliance with applicable federal, State, and local laws, plans, and regulations, including the General Plan, Titles 8 and 17 of the California Code of Regulations, California Occupational Health and Safety Administration (Cal/OSHA) requirements, as well as implementation of MM HAZ-2, which requires the preparation of a Phase I Environmental Site Assessment (Phase I ESA) and Phase II ESA (as necessary) and completion of any necessary remedial activities to be conducted under the oversight of the appropriate regulatory agency, would provide public protection from hazards associated with the use, transport, treatment, and disposal of hazardous substances during construction and operation of development consistent with the Housing Element Update. Therefore, impacts related to upset and accident conditions involving the release of hazardous materials into the environment would be less than significant with mitigation. Proposed Project Analysis and Conclusion The Housing Element Update FEIR identified that the project site was in need of further evaluation regarding previously detected VOCs and organochlorine pesticides in soil and. The RWQCB closed the project site in 2003 based on the available data. Additional sampling was conducted in 2007 by Cornerstone to evaluate the data with respect to current Water Board Environmental Screening Levels (ESLs). 18 California Department of Toxic Substances Control (DTSC). 2022. Response to Notice of Preparation of a Draft Environmental Impact Report for the City of Pleasanton 2023-2031 (6th Cycle) Housing Element Update Program – Dated April 2022 (State Clearinghouse Number: 2022040091). May 5.