HVAC Cooling Tower Chemical Sampling and Treatment

Quick Summary

The Department of the Air Force, 375 CONS LGC, is soliciting proposals for HVAC Cooling Tower Chemical Sampling and Treatment Services at Scott Air Force Base, IL. This Total Small Business Set-Aside opportunity requires comprehensive water/chemical monitoring, sampling, and treatment for cooling towers, closed loop systems, and coupon racks. Proposals are due December 11, 2025, at 9:00 AM CST.

Scope of Work

This contract encompasses labor, tools, chemicals, and equipment for water/chemical monitoring, sampling, and treatment of HVAC equipment. Key services include:

• Monitoring, sampling, and treatment of 13 cooling towers (11 sumps) across 8 facilities.
• Service for 496 closed loop systems (hot and chilled) across 67 facilities, with quarterly testing.
• Service for 27 coupon racks at 15 facilities, with testing twice annually.
• Legionella testing twice annually in all cooling towers using a CDC Elite laboratory.
• Personnel performing sampling and treatment must be members of the Association of Water Technologies (AWT) or equivalent.

Contract & Timeline

• Contract Type: Single award.
• Period of Performance: One base year plus four one-year option periods, from Date of Award through September 30, 2030. The base year is October 1, 2025, to September 30, 2026.
• Set-Aside: Total Small Business Set-Aside (FAR 19.5).
• NAICS Code: 541380 (Testing Laboratories and Services) with a $19M size standard.
• PSC Code: H999 (Other Quality Control, Testing And Inspection Services: Miscellaneous).
• Proposal Submission Deadline: December 11, 2025, at 9:00 AM CST.
• Quote Validity: Must be valid through January 31, 2026.

Submission & Evaluation

• Submission Method: Electronic copies via email to Jin Chung (jin.chung.2@us.af.mil) and Nicholas Weiss (nicholas.weiss.5@us.af.mil).
• Required Documents: Technical proposal, past performance information (using provided form), and a completed pricing sheet.
• Evaluation Criteria: Best value source selection utilizing a subjective trade-off process, considering Past Performance (most important), Technical, and Price.
• Key Clarifications: The number of closed loops to be tested annually has increased to 496. Bulk chemical delivery is preferred, and the contractor is responsible for dispensing, as no on-base storage is available. Closed loop treatment requires propylene glycol inhibited with Nitrite ions.