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RFP No. 18-043 Subconsultant Al - Environmental Site Assessment Ninyo & Moore understand the City will establish a DBE goal for this contract if the project/task funding uses federal funds. As a certified MBE, Ninyo & Moore is familiar with the goals of local municipalities and government agencies relative to the utilization of disadvantaged and minority-, woman-, and disa- bled veteran -owned business enterprises (D/MAN/DVBE). We are prepared to meet any DBE goal established by the City. d. Understanding of Need This section describes our project understanding to perform Phase I and Phase II Environmental Site As- sessment (ESAs) and assumptions used in preparing the scope of work detailed in Attachment I of the RFP. PHASEIESA Ninyo & Moore routinely performs Phase I Environmental Site Assessments (ESA) as set forth in the ASTM International (ASTM) Standard Practice for Environmental Site Assessments: Phase I Environ- mental Site Assessment Process (ASTM Designation Number E1527-2013), and the requirements of the USEP,4s All Appropriate Inquiry (AAI) standard to meet liability protection requirements. Specific sites that warrant a Phase I ESA will be distinguished based upon the findings of some level of preliminary assessment, normally performed prior to implementation of task orders. Due to the wide range of possible environmental impacts posed by the sites located in project areas, the level of effort required to complete each Phase I ESA will depend upon site-specific characteristics (e.g., future construction/use plans, past and present site uses, likely contaminant types, etc.). The proposed scope of services for the Phase I ESA will include the activities listed below: • Review readily available maps and reports pertaining to the site. The client is requested to pro- vide copies of documents in its possession. • Conduct Interviews with property representatives, if readily available, regarding the environmental status of the site. • Perform a site reconnaissance to visually observe areas of possibly contaminated surficial soil or surface water, improperly stored hazardous materials, possible sources of polychlorinated bi- phenyls, and possible risks of contamination from activities at the site and adjacent properties. • Review readily available local regulatory agency files for the site. Requests will be made to the County Department of Health Services, the local Air Quality Management District, and the local Fire and Building Departments. Other agencies that may be contacted, depending on site history and conditions, include the local California Regional Water Quality Control Board office and the State of California Department of Toxic Substances Control. • Review available regulatory agency databases for the site and for properties located within a specified radius of the site. The purpose of this review is to evaluate the possible environmental impact to the site. Databases will report locations of known hazardous waste sites, landfills, and leaking underground storage tanks, permitted facilities that use underground storage tanks, and facilities that use, store, or dispose hazardous materials. • Review readily available historical documents, Including aerial photographs (site and adjacent properties), Sanborn Insurance Maps (site and available adjacent properties), Building Department Records (site only), reverse city directories (site and available adjacent properties), and topograph- ic maps, as appropriate. If a Phase I ESA has already been performed, and if requested by the City, Ninyo & Moore will review all relevant information obtained since the completion of the earlier Phase I ESA, verify the accuracy of the study and provide appropriate updated recommendations. The ASTM Phase I ESA Process is the national Industry standard for the evaluation of commercial real estate. The main intent of the Phase I ESA is to evaluate if recognized environmental conditions (RECs) are present that may have impacted the site. In accordance with the ASTM E1527-13 standard and AAI, It is the responsibility of the user of the report to conduct a review of recorded land title records and lien records for the site, or engage a title company to review such records. Relevant environmental information, if discovered during this review, must be © Ninyo & Moore I City of Santa Ana - (All EnvironmentE¢iVe29yt6 105-00713 1 June 5, 2018