Addendum and Acknowledgement Doc 2.doc

This is an addendum to a solicitation issued by Argonne National Laboratory's Procurement Department on February 26, 2026. Addendum No. 002 modifies Request for Proposal No. 6-S176-Q-00157-00 for the Building 350 Chiller Replacement Phase II project. The primary modification extends the offer deadline from March 1, 2026 at 5:00pm CST to March 10, 2026 at 5:00pm CST. All offerors are required to acknowledge receipt of this addendum by signing and returning a copy of the letter via email to the Procurement Department.

The underlying solicitation seeks a responsible contractor to furnish a water-cooled chiller with variable speed, oil free centrifugal compressor for Building 350 at Argonne National Laboratory. Evaluation criteria are based on Lowest Price, Technically Acceptable methodology. Offerors must provide completed and signed ANL-70 and ANL-70B forms along with an offeror-provided specification document containing evidence supporting all mandatory technical requirements outlined in the specification document dated January 12, 2026. Price information must not be included in the offer specification document. All questions were due to the Contracting Officer by February 20, 2026. Offers must be submitted via email to the Contracting Officer by the extended deadline of March 10, 2026 at 5:00pm CST, with the Notice ID included in the subject line. The Department of Energy Office of Science administers this federal contracting opportunity.