EC - mary's lake coolers

The Department of the Interior Bureau of Reclamation is procuring two replacement generator air coolers for the Mary's Lake Powerplant located in Estes Park, Colorado. The contract requires design, fabrication, testing, and delivery of fully assembled air coolers capable of dissipating 140 kw of heat load per unit, with maximum pressure rating of 50 psi, maximum cooling water temperature of 25°C, and maximum pressure drop of 5 psi. The coolers must be constructed from specified materials including ASTM B111 90/10 copper-nickel tubes and ASTM B171 tube sheets, with water velocity between 5-7 ft/s and mechanical bonding of fin tubes. The solicitation uses Lowest Price Technically Acceptable (LPTA) evaluation criteria that equally weights price and technical capability of the equipment. The original quote submission deadline was August 15, 2025, but has been extended through multiple amendments, with the most recent deadline appearing to be September 2, 2025, based on the posted due date.

This procurement is designated as a Total Small Business Set-Aside under NAICS code 333618 (Other Engine Equipment Manufacturing) with a size standard of 1,500 employees. The contract involves a supply-only agreement with a six-month maximum period of performance from contract award to final delivery, with installation to be performed separately by government personnel. The solicitation references similar past projects including Flatiron air coolers (contract #R17PC00097) and Canyon Ferry air coolers (contract #140R6021D0003), suggesting this is part of an ongoing infrastructure modernization program. Place of performance for delivery is specified as the Mary's Lake Powerplant at 2198 Power Plant, Estes Park, Colorado 80517, with the contractor required to provide lifting lugs and package the coolers for outdoor storage. The procurement includes a minimum 5-year manufacturer warranty and requires comprehensive documentation including approval drawings, hydrostatic test reports, and service manuals.