6025-004 NPS WHIS Phase 1 Abandoned Mine Remediations

The California Department of Conservation (DOC), in coordination with the National Park Service (NPS), is seeking a qualified contractor to remediate nine abandoned mine features within the Whiskeytown National Recreation Area in Shasta County. This Public Works Invitation for Bid (IFB) requires the fabrication and installation of specialized safety infrastructure, including polyurethane foam plugs with backfill, bat gates, and rebar air grates with barriers across seven mine sites. A mandatory full-day pre-bid walkthrough is scheduled for January 21, 2026, at 7:00 AM at the Whiskeytown NRA Visitor Center, which will involve site visits over challenging terrain requiring four-wheel drive vehicles and moderate hiking. Bidders must be registered California Department of Industrial Relations public works contractors with current General Contractor licenses and possess MSHA Form 5000-23 certification for the onsite job foreman. Written questions must be submitted by January 28, 2026, at 5:00 PM, with responses provided by January 30, 2026, at 3:00 PM. Bids are due by February 6, 2026, at 2:00 PM, with bid opening on February 9, 2026, and proposed award on February 10, 2026. The contract performance period runs from March 2026 through September 30, 2027.

The solicitation includes specific requirements for small businesses and disadvantaged enterprises, offering a five percent small business preference for certified public works small businesses and disabled veteran business enterprise incentives up to five percent. Contractors must provide comprehensive insurance coverage, including General Liability ($1,000,000 per occurrence/$2,000,000 aggregate), Business Automobile Liability ($1,000,000 combined single limit), Workers' Compensation, and potentially Aircraft Liability if helicopter support is used. A Performance Bond of 100 percent of the total contract amount is required for awards exceeding $25,000. Bidders must submit three references demonstrating relevant abandoned mine remediation experience and comply with prevailing wage requirements under California Labor Code sections 1720 et seq. The solicitation is funded through a Cooperative Agreement between NPS and DOC, with federal funding supporting the project. No specific budget amount is listed, and bidders are required to propose costs for each of the nine individual tasks. The DOC will evaluate bids based on responsiveness to administrative criteria and award to the lowest responsive responsible bidder after applying eligible preferences.