Ice Core Freezer Maintenance
The Department of the Interior, US Geological Survey, awarded contract 140G0226P0325 to Tolin Mechanical Systems Company, LLC for ice core freezer maintenance at a contract value of $351,389.30 on September 24, 2026.
The award was made under unrestricted competition. Place of performance and period of performance are not specified in the award notice.
140G0226Q0135 Department of the Interior US Geological Survey Office of Acquisitions and Grants
9/24/26, 4:05 PM Freezer Maintenance
The U.S. Geological Survey, on behalf of the National Science Foundation, seeks operations and maintenance services for a CO2 refrigeration plant at the NSF Ice Core Facility in Denver, Colorado, with quotations due September 10 and questions due September 3. This is not a small business set-aside.
Place of performance is Denver, Colorado. The facility stores over 30,000 meters of ice cores valued at approximately $750 million and requires maintenance of a newly commissioned transcritical CO2 refrigeration system at -34C within narrow tolerances. The contractor must maintain 99.9% system uptime, employ Colorado-licensed refrigeration technicians with EPA compliance, possess CO2 (R477) refrigeration expertise, and comply with federal background check and DOI access card requirements. Services include routine maintenance (weekly, monthly, quarterly, and annual tasks), as-needed repairs, direct digital control services, preventative maintenance, and 24/7 emergency on-call response with specified response times: 30 minutes for critical issues, 60 minutes for high-priority, and 2 days for medium or low-priority. Anticipated labor hours span routine maintenance (4-8 weekly, 12-16 monthly, 16-24 quarterly, 16-24 annually), repairs (80-120 hours over contract period), controls services (8-12 hours quarterly), preventative maintenance (3-4 hours monthly), and emergency response (120-160 hours).
The contract is firm-fixed-price with a base year from October 1, 2026 through September 30, 2027, followed by two optional one-year periods. NAICS code 238220 applies; the small business size standard is $19 million. Award will be made to the lowest-priced, technically acceptable quotation evaluated on pass-fail criteria for technical expertise, experience and qualifications, and technical personnel qualifications. Invoicing is monthly in arrears through the Federal Treasury's Invoice Processing Platform.
140G0226Q0135 Department of the Interior US Geological Survey Office of Acquisitions and Grants
8/25/26, 11:01 AM Sources Sought - Freezer Maintenance
The U.S. Geological Survey, procuring on behalf of the National Science Foundation, is conducting market research for operations and maintenance services on a newly constructed CO2 refrigeration plant at the NSF Ice Core Facility in Denver, Colorado, with a sources sought response due by August 12, 2026. The procurement is set aside for small businesses under NAICS 238220 (Plumbing, Heating, and Air Conditioning Contractors; size standard $19.0 million).
Work is performed at the NSF-ICF in building 810, Denver Federal Center, Denver, Colorado. The CO2 refrigeration system employs transcritical technology with two compressor racks, two gas coolers, eight evaporators, flash gas bypass, high-pressure controls, a 6,000-square-foot hydronic floor system with 24 zones, integrated control systems, HVAC and filtration, and CO2 leak detection. The contractor must maintain 99.9% system uptime (excluding scheduled maintenance), ensure 24/7/365 operation, optimize energy consumption, perform remote monitoring and control with secure access protocols, and conduct seasonal adjustments in May and November. Qualified technicians must hold specialized training on CO2 (R477) refrigeration systems. The contractor furnishes all materials, supervision, labor, tools, equipment, technical recommendations, and travel for preventative maintenance, regular maintenance, and emergency response. Replacement parts require advance approval from the NSF-ICF Technical Curator or USGS Program Coordinator. Monthly meetings with NSF-ICF Curators are mandatory to review operations and address issues. All work complies with applicable local, state, and federal codes.
Interested firms must submit name, address, phone number, UEI number, and socioeconomic status by August 12, 2026 at 12:00 p.m. MT to jennifer_rollin@ios.doi.gov. Firms must have an active UEI and be registered in SAM.
140G0226Q0135 Department of the Interior US Geological Survey Office of Acquisitions and Grants
8/7/26, 1:42 PM