Echo Lake In-Lake Phosphorus Treatment and Water Quality Monitoring

The City of Shoreline, Washington, is soliciting proposals under solicitation number 1398042 for in-lake phosphorus inactivation treatment and water quality monitoring services at Echo Lake. The project aims to implement recommendations from the Echo Lake Cyanobacteria Management Plan and is funded through the City of Shoreline Surface Water Utility and Washington State Department of Ecology grants. The selected consultant will develop a dosing plan using alum or lanthanum-based products, manage NPDES permit compliance, conduct baseline monitoring, and provide technical assistance for regulatory reporting. The anticipated maximum compensation for the agreement is 145,000 dollars. Proposals are due by 2:00 p.m. Pacific Time on August 28, 2026, and must be submitted exclusively via publicpurchase.com in PDF format. The evaluation is based on a 100-point scale, prioritizing the cost proposal (30 points), approach (25 points), project team expertise (20 points), and project experience (20 points), with the executive summary accounting for the remaining 5 points. The anticipated contract award date is September 4, 2026. Selected consultants must provide a business license, a W-9 form, and maintain specific insurance coverages, including 2,000,000 dollars each for professional liability and commercial general liability, and 1,000,000 dollars for auto liability. All digital deliverables must adhere to Section 508 and WCAG 2.1 Level AA accessibility standards.