NPDES Permit Studies and Support for Riverside Park Water Reclamation Facility

The City of Spokane is awarding a contract to provide environmental consulting and engineering support for the NPDES permit (WA‑0024473) associated with the Riverside Park Water Reclamation Facility. The work includes developing and executing a mixing‑zone/dye tracer study, a receiving‑water trace‑metals and pH monitoring program, and a sediment‑monitoring plan, all in compliance with Washington State Department of Ecology requirements. The contractor will prepare study plans, conduct field and laboratory work, produce quality‑assurance project plans, and deliver final technical reports to the City and Ecology. The award is a single‑vendor, up‑to‑5‑year, renewable agreement with no price competition at the solicitation stage. • Scope: Effluent mixing‑zone study, trace‑metal/pH receiving‑water study, and sediment monitoring for RPWRF. • Duration: Up to five years with possible renewal; work expected to begin August 2023. • Vendor: HDR Engineering Inc., selected via RFQu #5914‑23. • Funding: Not disclosed; award contingent on availability of funds. • Requirements: Washington State business registration, $1 M minimum insurance coverage, ACH payment method, and compliance with City of Spokane’s terms and conditions.