Groundwater & Surface Water Monitoring at County Owned Municipal Solid Waste Facilities

Cowlitz County Department of Public Works is soliciting proposals under RFP 2026-0048-01 for groundwater and surface water monitoring at its county-owned Headquarters and Tennant Way municipal solid waste landfills, with proposals due November 18, 2026 at 3:00 p.m. Pacific Time. The listing carries Clark County (FIPS 53011) as its jurisdiction, while the attached RFP identifies Cowlitz County as the issuing body. Physical delivery of proposals is required to Roger Maurer at 1600 13th Avenue South, Kelso, Washington 98626.

Proposers must be registered to conduct business in Washington State, bonded and insured, and capable of performing at least 35 percent of the work directly. No set-aside or preference program is identified.

Scope covers project management and coordination, implementation of approved Sampling and Analysis Plans, groundwater and surface water monitoring, data management, and comprehensive reporting. The County seeks pricing for landfill detection monitoring of active and closed cells at both facilities. The cost proposal must cover quarterly sampling, quarterly data management and reporting, and additional task billing rates. Proposals must include a cover sheet with certifications, project team resumes, documentation of at least three similar projects completed within the past five years, and three client references, preferably from government agencies. Required insurance includes $1 million general liability per occurrence, $2 million aggregate, statutory workers' compensation, $1 million combined single limit automobile liability, and $5 million umbrella liability.

The period of performance runs January 1, 2027 through December 31, 2029, with one additional one-year extension at the County's discretion. The County intends to award one agreement. Evaluation allocates 65 percent of the 100 points to the technical and management proposal and 35 percent to cost. Monthly invoices are permitted no later than 14 days after each calendar month ends. The County will not reimburse proposal preparation costs.