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

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but not limited to: • Investigate the historical uses of the projects site by examining available historical aerial photographs, topographic maps, Environmental Data Resources (EDR radius shall be at least one mile from the project limits) and other available documentation for evidence of potential environmental concerns (both surface and subsurface) associated with prior land uses. • Interview the current and former owners and occupants of the properties and other knowledgeable persons (including adjacent residents/occupants, as well as applicable local government officials) to identify historical operations conducted on the project site and adjacent properties. • Research and investigate area for geology and subsurface/surface potential for pollutant transport from public sources. • Prepare Phase I ESA report detailing the findings through inspections and interviews, site characteristics, record and historical review information and potential contamination issue, interpretation of the findings and recommendations for any work required. Phase II Environmental Site Assessment Consultant shall conduct Phase I ESA in compliance with the current standard practices of the American Society for Testing and Materials (ASTM) Standard El527. These tasks shall include but not limited to: • Collect soil and water samples of the project site. • Conduct subsurface soil borings. • Perform geophysical testing for buried/underground storage tanks and drums. • Install groundwater monitoring well and analyze the presence of contamination. Depending on the results of the samples, additional site investigation and potential remedial actions may be required. • Prepare Phase II ESA report detailing the compilation and analysis of the data collected, interpretation of the findings and recommendations for any work required. • Coordinate with local government officials and/or contractor to conduct the necessary sample collection, submit the required forms/reports and obtain the complete hazardous closure certification. (II) HAZARDOUS MATERIALS SURVEYS Pre -demolition Hazardous Materials Surveys Consultant shall perform pre -demolition survey for hazardous and contaminated building materials. These tasks shall include but not limited to: • Perform the necessary hazardous materials survey (including but not limited Asbestos and Lead Based Paint) and collect bulk samples to identify and quantify all potential hazardous, contaminated, or other materials, including materials and abandoned or waste materials, which may be regulated or otherwise require special consideration or disposal arrangements during, or prior to, demolition of the building. • Prepare the Asbestos -Containing Materials (ACM), Lead Based Paint (LBP), Universal Waste and any other necessary survey reports to comply with State and Federal requirements. CITY RESPONSIBILITIES: City of Santa Ana RFP 22-090 Page Al-4