697DCK-26-R-00373 - Amendment 0001.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or telegram which includes a reference to the solicitation and amendment number. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: is not is required copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ.NO. 5. PROJECT NO. (If applicable)

7. ADMINISTERED BY (If other than Item 6)CODE

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required.)

copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

(x) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14.

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. CONTRACT AUTHORITY

(Signature of Contracting Officer)

PAGESOF

Contractor

The hour and date specified for receipt of Offers to sign this document and return

Anna F. Glover

See continuation page

FEDERAL AVIATION ADMINISTRATION

AAQ-500 - REGIONAL ACQUISITIONS

1701 COLUMBIA AVENUE

COLLEGE PARK GA 30337

AAQ510ATL-AFN

697DCK-26-R-00373

08/24/2026

08/13/2026

1 4

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGES

NAME OF OFFEROR OR CONTRACTOR

SUPPLIES/SERVICES

(B)

UNIT

(D)

UNIT PRICE

(E)

AMOUNT

(F)

ITEM NO.

(A)

QUANTITY

(C)

697DCK-26-R-00373/0001

Water Treatment Services at the Minneapolis Air

Route Traffic Control center (ZMP ARTCC) in

Farmington, MN.

Amendment 0001 incorporates the attached

Questions and Responses document into the

Solicitation. All other terms and conditions remain the same.

QUESTIONS AND RESPONSES

Solicitation: 697DCK-26-R-00373

Water Treatment at ZMP ARTCC in Farmington MN

1. Can the FAA provide the BAC cooling tower model and serial number?

MN is 8407SLS1SMF SN IS 10026998-A1NC8407SM-10 There are 3 of them all identical.

2. Can FAA provide nominal tonnage for the 3-cell cooling tower system?

2055 total or 685 per cell.

3. What are the tonnage of each chiller on site? Qty of 2 250 ton and Qty of 2 300 ton

4. Can the FAA provide annually make-up water usage for cooling tower system?

5. Does FAA own the existing water treatment equipment? Own

6. Does the cooling tower system ever get drained? Is so, when? No

7. How many cells or chillers run during spring March – May? 1 twr 1 Chiller

8. How many cells or chillers run during summer June – August? 1 twr 2 Chiller

9. How many cells or chillers run during fall September – November? 1 twr 1 Chiller

10. How many cells or chillers run in winter if not drained December – February? 1 twr 1 Chiller

11. What is the Gallon Per Minute (GPM) on the condenser pumps and how many are there? 1650

12. What is the Gallon Per Minute (GPM) on the chill water closed loop pumps and how many are there? 650

13. What is the Gallon Per Minute (GPM) on the hot water closed loop pumps and how many are there? 240

14. Who is responsible for cooling tower cleanings and disinfections and how often during the year? FAA minimum of once

15. If we provide communications 24/7/365 monitoring using a modem with graphing capability which daily, weekly reporting can occur, is it possible the water treatment vendor can visit the site and do field analysis monthly? Modem not allowed

16. The current non-oxidizing biocide is not in a double wall containment; would the FAA accept all bidders to add pricing for 1ea. 40-gallon double wall containment to house the biocide? No

17. Would FAA entertain on water treatment vendor to price 2ea. 7-gallon Vector chemical feeder/filer bag system using 12ea. filter bags at ~5-20 micron for chill and heating loops? Note, installation to be by registered plumber/mechanical contractor. We did not see any chemical feeders or filtration on closed loops. No