MADRONA BEACH WATER SERVICE PFAS REMEDIATION PROJECT REQUEST FOR PROPOSALS Madrona Beach Water Service (MBWS) is requesting proposals from qualified engineering firms to provide professional engineering services for the evaluation, design, permitting, and implementation of PFAS remediation system for its public drinking water system. The total estimated project cost is approximately $300,000.00. This RFP is specifically for the engineering and design component of the of project and does not include construction costs. This project shall address the presence of per- and polyfluoroalkyl substances (PFAS) in the water supply and to ensure compliance with applicable Washington State Department of Health (DOH) drinking water standards and regulatory requirements. Project Background MBWS operates a public water system serving members in Thurston County, WA. Recent sampling and regulatory developments related to PFAS necessitate implementation of treatment solutions to reduce PFAS concentrations in the water and ensure long-term regulatory compliance and public health protection. Funding for this project is anticipated through the Washington State DOH Drinking Water State Revolving Fund (DWSRF) and the Environmental Protection Agency (EPA). As such, applicable state and federal requirements will apply. Scope of Work The selected engineering firm will be responsible for providing services that may include, but are not limited to, the following tasks: PFAS Treatment Evaluation: Review existing water quality and PFAS data, evaluate and compare feasible PFAS treatment options, and identify a preferred mitigation approach for our system. Engineering and Design: Prepare plans, specifications, and cost estimates for PFAS treatment. Develop final technical design and obtain approval by DOH. Permitting and Regulatory Coordination: Prepare and submit required documentation to DOH and coordinate with other local, state, or federal agencies as necessary. Funding Support: Prepare cost and technical documentation needed for funding eligibility, assist with meeting DWSRF loan requirements. Bidding and Construction Support: Prepare bid documents and assist with advertising and contractor selection, support project management during construction, provide engineering and inspection services as needed, oversee installation of PFAS treatment systems to ensure compliance with approved specifications. Startup, Testing, and Compliance: Support startup, performance testing, and system commissioning, assist with post-installation water quality sampling and reporting, prepare final reports and as-built documentation. Proposal Submission Proposals will be accepted until 5:00pm on April 30, 2026. Proposals will be submitted to MBWS by email at MBWSH2O@gmail.com. Late submissions will not be considered. Contractor Requirements All bidders and subcontractors must have an active Unique Entity Identifier (UEI). Contractors must comply with all applicable federal, state, and local regulations. All work will be subject to the higher of Washington State prevailing wage rates or applicable federal wage rates. Selection Process MBWS will evaluate proposals based on qualifications, relevant experience with PFAS treatment projects, understanding of regulatory requirements, familiarity with similar Group A water systems, and overall responsiveness to this RFP. The most highly ranked firm will be selected, and MBWS will negotiate a professional services agreement with that firm. MBWS shall have the right to reject any or all bids. Equal Opportunity MBWS is an equal opportunity entity. Small, Minority-Owned, and Disadvantaged Business Enterprises are encouraged to submit bids. Contact Information Firms interested in submitting a proposal or requesting additional information should contact MBWS at MBWSH2O@gmail.com IPL0328854 Apr 7,14 2026