YOSE 215363 - Replace Tuolumne Meadows WWTP

The National Park Service Denver Service Center is seeking contractors to replace the 50-year-old Tuolumne Meadows Wastewater Treatment Plant at Yosemite National Park in California. The comprehensive project involves demolishing the existing infrastructure, constructing a new wastewater treatment plant, installing new treatment equipment, replacing disposal ponds with an enclosed holding tank, and upgrading the effluent disposal system to serve a 500-site campground along with a lodge, store, ranger station, parking area, and visitor center. The solicitation (140P2026R0001) will be conducted as an unrestricted, full and open competition under NAICS Code 237990 (Other Heavy and Civil Engineering Construction) with a size standard of $45 million. The contract will be awarded based on best value evaluation considering both non-price and price factors, and successful contractors must provide bid, performance, and payment bonds. The RFP is expected to be issued electronically via SAM.gov in mid-October 2025, with a tentative pre-proposal site visit scheduled for October 22, 2025 to avoid winter weather delays.

This opportunity does not utilize any set-aside designation and is open to all qualified contractors. No incumbent contractors or current service providers are identified in the notice. While specific award values are not disclosed, the project falls under the NAICS size standard of $45 million, suggesting a substantial contract value. The anticipated period of performance is 2,190 calendar days (approximately six years) from the Notice to Proceed, indicating a long-term construction and implementation timeline. Prospective offerors must maintain active registration in SAM.gov with a valid Unique Entity Identification number throughout the procurement process. The contract will be structured as a Firm-Fixed-Price arrangement, transferring cost risk to the contractor for this significant infrastructure replacement project.