GRCA 318719_Temporary WWTP at North Rim

The National Park Service seeks installation of a temporary wastewater treatment plant (WWTP) at North Rim, Grand Canyon National Park, with proposals due July 29, 2026 and questions due July 10. This is a Small Business Set-Aside requiring a lump-sum bid with a base contract value of $14 million and an optional $2 million line item, totaling $16 million with all options.

Place of performance is North Rim, Grand Canyon National Park, Arizona. The 420-calendar-day performance period begins September 30, 2026 and must conclude with Arizona Department of Environmental Quality operational approval by June 1, 2027, with liquidated damages of $3,517 per calendar day for delays beyond that date. The work comprises five contract line items: Site Work and Utilities ($8.5 million), Storage Container ($500,000), One Membrane Package Treatment ($2 million), Startup, Commissioning, Operations and Winterization ($1.75 million), and End-of-Season Tank Pumping and Biosolids Removal ($1.25 million), with an optional second Membrane Package ($2 million).

The NAICS code is 237110, Water and Sewer Line and Related Structures Construction; PSC is Y1NE, Construction of Water Supply Facilities. The facility processes wastewater at 60,000 gallons per day average flow through screening, equalization, membrane bioreactor treatment (two 11,600-gallon units rated 45,000 GPD each), UV disinfection, and lift stations. Specifications require a 56-foot modular laboratory trailer, two 40-foot refurbished chemical storage containers with HVAC, electrical systems with Ethernet TCP/IP communications, and multiple subsystem controllers without a central SCADA requirement. All work must comply with prevailing wage rates under Davis-Bacon Act authority (Arizona General Decision AZ20260056, dated May 18, 2026). Contractor personnel require no specific security clearances. Tree removal is restricted to September 1 through March 31 for bird protection; work hours are 6 a.m. to 6 p.m. Monday through Friday, and State Route 67 is typically impassable December 7, 2026 through April 1. A pre-bid site visit was held June 23, 2026. Amendments through July 22 have incorporated design revisions, geotechnical reports, and updated electrical and lightning protection specifications.