Captain Jack Mill Superfund Site O & M

The Colorado Department of Public Health and Environment (CDPHE), Hazardous Materials and Waste Management Division, is issuing Request for Proposal 2026000184 for operations and maintenance services at the Captain Jack Mill Superfund Site located near Ward, Colorado, spanning Arapahoe County and Denver City jurisdictions. The procurement encompasses comprehensive site-wide operations and maintenance activities including management of two reclaimed capped waste cells, operation of a subsurface in-tunnel water treatment system within the Big Five Adit, and mobilization of a planned external passive treatment system designed to address acid mine drainage. Primary deliverables required within 30 to 90 days of contract execution include a Contract Master Schedule, Sampling and Analysis Plan/Quality Assurance Project Plan, Standard Operating Procedures, Health and Safety Plan, Operations and Maintenance Plan, Data Management Plan, Emergency Action Plan, and Transition Plan. The contractor must implement monthly mine pool and surface water sampling across a comprehensive monitoring network of four groundwater monitoring wells, three Dew Drop sampling points, multiple Midway and Niwot monitoring stations, eleven surface water locations, and twenty-one identified seep coordinates, with discharge goals established for thirty parameters including flow rate, pH, total suspended solids, metals, and chemical compounds. Mandatory contractor qualifications include Colorado Secretary of State registration in good standing, a Colorado Class B Industrial Wastewater Treatment Certification for the proposed lead operator, a continuously maintained Colorado office for five years or demonstration of two prior Colorado projects, operation and maintenance experience with at least one facility of similar size and complexity during the past five years, and the lead operator possessing a minimum one year of experience as operator in responsible charge during the last three years; contractors must also demonstrate prior experience under CERCLA, Clean Water Act, and with Colorado state agencies. A mandatory pre-proposal meeting is scheduled for April 13, 2026, at 10:00 AM MDT at the site location (93 California Gulch Road, Jamestown, CO 80455), with attendance required and failure to attend resulting in bid rejection; written inquiries must be submitted by April 17, 2026, at 2:00 PM MDT with responses published by April 21, 2026; and proposals are due May 5, 2026, at 2:00 PM MDT with award anticipated June 1, 2026. Proposals must not exceed 50 pages (excluding required attachments and resumes) and will be evaluated based on mandatory requirements, executive summary quality, experience and qualifications, facility maintenance and operations plan comprehensiveness, cost reasonableness, and references.

The solicitation does not identify specific set-asides for disadvantaged enterprises, small businesses, women-owned business enterprises, or minority-owned business enterprises, though federal provisions require affirmative steps to utilize such businesses where feasible. No incumbent contractor is identified in the solicitation documents provided. The contract requires integration with existing infrastructure including the Big Five Adit in-tunnel treatment system, a recirculation system between PB1 and DD3 utilizing a 7.5 horsepower submersible pump, a limestone stockpile, existing ore piles, and tailings piles, with contractor responsibility for maintaining all site structures, off-site facilities, and site roads. The initial contract period runs from June 1, 2026, through May 31, 2027, with the state retaining options to renew for up to four additional one-year periods for a maximum five-year total contract duration. The annual budget for this project is approximately $1,800,000, with a total five-year budget not expected to exceed $9,000,000 unless additional funding becomes available, funded through a 90 percent EPA award and 10 percent Colorado Hazardous Substance Response Fund cost share. Contractors must comply with all federal provisions including System for Award Management (SAM) registration, debarment and suspension requirements, Davis-Bacon Act prevailing wage requirements, Contract Work Hours and Safety Standards Act compliance, Clean Air Act and Federal Water Pollution Control Act compliance for contracts exceeding applicable thresholds, Equal Employment Opportunity standards, and Byrd Anti-Lobbying Amendment certifications for awards over $100,000.