GRCA 257282 - Replace South Rim Wastewater Treatment Plant, Grand Canyon, AZ

The National Park Service intends to solicit construction services to replace the wastewater treatment plant at Grand Canyon National Park's South Rim Village in Coconino County, Arizona, with an RFP anticipated for release on or after August 1, 2026, and a response deadline of November 2, 2026.

Work is performed at the South Rim location in Arizona and includes construction of a new 0.65 MGD Membrane Bio-Reactor wastewater treatment plant, site preparation, demolition of existing infrastructure, installation of treatment facilities with utility connections and electrical systems, instrumentation and control systems, administrative buildings, site improvements including grading and paving, access road improvements and extension, and a 12-month operational support period following construction completion. The anticipated performance period is 1,035 calendar days from Notice to Proceed. Bid, Performance, and Payment Bonds are required.

The procurement carries no set-aside. The contract structure is Firm-Fixed-Price under a best-value trade-off evaluation considering technical merit, past performance, and price (FAR Part 15 and Part 36). Size standard is $35 million; construction magnitude exceeds $10 million. NAICS code is 221320 (Sewage Treatment Facilities); PSC is Y1NZ (Construction of Other Utilities).

A pre-bid conference is scheduled for August 11, 2026, on-site and virtually at South Rim. Prospective offerors must maintain active SAM.gov registration with a valid UEI number. Contracting Officer Tim Burger (timothy_burger@ios.doi.gov) and Contract Specialist Kristin Tauber (kristin_tauber@ios.doi.gov) are the primary contacts. The solicitation numbering was updated from 140P2025R0093 to 140P2026R0101.