Item 16 - Agreements for A -Tech Consulting, Inc., Dudek, and Leighton Consulting, Inc. for On -Call Various Environmental Services

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0 Proposal for Various Environmental Services Page 18 August 1, 2022 ■ An inspection of the site to identify Recognized Environmental Conditions (RECs) that may include indications of the improper handling, storage, or use of potentially hazardous materials. This task also includes interviews with accessible property owners, tenants, and/or local agency personnel about hazardous materials handling and disposal procedures. ■ An evaluation of the possible presence of hazardous materials in structures at the site and/or in the subsurface environment beneath the site, with recommendations, if appropriate, for additional investigations or remediation. A cost estimate of additional activities will be prepared and submitted with the Phase I ESA report. Request Environmental Data Resources, LLC (EDR) to conduct a search of government records and document potential sources of contamination at or in the vicinity of the property. EDR's search includes federal, state, local, tribal, and EDR proprietary records for the property and for facilities within the distances per current ASTM practices. EDR will also search for any environmental liens associated with the Property. The list of research will include, but not be limited to, Environmental Protection Agency (EPA) National Priorities List (NPL) and Emergency Response Notification System List (ERNS); the RCRA generators, and treatment, storage and disposal (TSD) facilities list; Comprehensive Environmental Response Compensations, and Liability Information System (CERCLIS); and the State list of Leaking Underground Storage Tank (LUST) sites. Additionally, local governments will be contacted for a file search and review. An evaluation of potential PFAS sources on site based on available PFAS databases and historical operations at the site. Our experience with environmental projects for various government organizations informs us that Phase I ESAs may be needed because of acquisition of land or facilities, selling, or leasing facilities, terminating leases, or any other property transactions. The Phase I ESAs may conclude that there are no RECs, in which case the project will be completed, or may trigger additional investigations leading to Phase II ESAs. It is also possible that Phase I ESAs have been conducted by other entities and the City needs to initiate Phase II ESAs with the objective of collecting soil, soil vapor, and groundwater data to further assess the environmental conditions. The systematic approach for conducting Phase II ESAs is briefly described below: Meeting with the City Staff The initial review and identification of RECs will be completed during the Phase I ESAs. If a Phase I ESA recommends additional investigation to be conducted at a site, A -Tech will discuss the environmental requirements with the City staff and follow their instructions closely. The findings of the initial review will be discussed with the City to clarify the environmental concerns and to fill in any data gaps. Discussion will also include designation of a regulatory oversight agency, if that is the approach that is advocated for by the City. Potential regulatory oversight agencies include Cities and Counties' Health or Environmental Departments, the Fire Department, the South Coast Air Quality Management District (SCAQMD), Regional Water Quality Control Boards (RWQCB), Department of Toxic Substances Control (DTSC), EPA Region 9, or other local agencies. It is A-Tech's practice not to contact 0 A -Tech Consulting, Inc.