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CITY OF SANTA ANA RFP NO.: 22-133 ON -CALL ENGINEERING DESIGN SERVICES FOR PFAS TREATMENT SYSTEMS f q -1 1 A. INTRODUCTION AND BACKGROUND The City of Santa Ana Public Works Agency— Water Resources Division oversees and maintains the daily operations of the Water System and Sanitary Sewer System. The City's water system has an average day demand of about 30 million gallons (MG) with 45,000 services. It is comprised of approximately 478 miles of water main, 45 MG of storage at five (5) sites, seven (7) MWD connections, 21 groundwater wells, seven (7) pump stations, four (4) pressure regulating stations and utilizes two (2) pressure zones. The purpose of this Request for Proposals (RFP) is to solicit on -call consulting and engineering design services for per- and polyfluoroalkyl substances (PFAS) treatment facilities from qualified engineering firms. The City is currently using Ion Exchange (IX) pressure vessel treatment and will employ this method of advanced water treatment for PFAS at future sites impacted by the constituent of concern. B. CONSULTANT RESPONSIBILITIES The Consultant shall provide all labor, materials, services, and equipment necessary for the services described herein. The Consultant shall possess all Federal, State and Local permits, licenses, and approvals necessary to provide good/services required in the Scope of Work. The Consultant chosen to provide the engineering design services for the PFAS IX treatment facilities must demonstrate familiarity, knowledge, and experience in PFAS matters. In addition, the Consultant shall take into account current and potential future regulation of emerging contaminants identified through the Environmental Protection Agency's Unregulated Contaminant Monitoring Rule (UCMR), the Department of Drinking Water Monitoring Orders, and any additional regulations by the California State Water Resources Control Board and the EPA. C. SCOPE OF SERVICES The City is seeking qualified Consultants to provide engineering and consulting services for PFAS Treatment System Designs at various potable ground water sites. The Consultant shall be capable of providing all tasks listed in the scope of services. 1. PLANNING STUDY AND CONSULTING SERVICES The Consultant shall perform a Planning Study for the City in which the number of wells impacted by PFAS, their location, and areas available for a treatment system(s) and truck access would be examined. The Planning Study would determine how the treatment system(s) would be integrated into the City's existing operations, determine if a centralized treatment plant is feasible for combining wells, provide alternative design options, assess the potential for blending, provide initial support for permitting and develop capital costs associated with potential land acquisition, permitting, pipeline connections and system integration. In general, City of Santa Ana RFP 22-133 On -Call Engineering Design Services for PFAS Treatment Systems Page 14