Marcus Whitman Hotel, Operations and Maintenance of Treatment System

The Washington Department of Ecology is soliciting a single vendor to provide professional operations and maintenance services for a groundwater treatment system and monitoring wells at the Marcus Whitman Hotel. The primary objective is to intercept hydrocarbon-affected groundwater via a basement sump and treat it to reduce concentrations of gasoline-range petroleum hydrocarbons and volatile organic compounds, specifically benzene, toluene, ethylbenzene, and total xylenes, to meet the City of Walla Walla publicly owned treatment works discharge requirements. The scope of work includes managing a treatment train consisting of a bag filter and two granular activated carbon vessels in series, performing regular media replacement and disposal, monitoring sump water levels, and documenting contaminant concentration trends. All activities must comply with the Model Toxics Control Act and applicable federal, state, and local permits. The initial period of performance is from April 1, 2027, through June 30, 2030, with the possibility of two additional two-year extensions, not to exceed June 30, 2034. The selected contractor must be capable of responding to system alarms on-site within 60 minutes. Award will be based on the highest total score considering technical, management, and price proposals, provided the bidder meets all mandatory administrative and qualification requirements. Key deliverables include a Health and Safety Plan and Standard Operating Guidelines, both of which require agency approval prior to implementation. Bidders must submit a comprehensive electronic proposal including technical and management plans, past customer references, and various certifications regarding wage laws, workers' rights, and nondiscrimination.