5. PROJECT NUMBER (if applicable)

CODE 7. ADMINISTERED BY

2. AMENDMENT/MODIFICATION NUMBER

CODE

6. ISSUED BY

8. NAME AND ADDRESS OF CONTRACTOR

4. REQUISITION/PURCHASE REQ. NUMBER 3. EFFECTIVE DATE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED

PAGE OF PAGES

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED

BPA NO. 1. CONTRACT ID CODE

FACILITY CODE CODE

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:

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

E. IMPORTANT:

is extended,

(a) By completing Items 8 and 15, and returning __________ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY is not extended.

12. ACCOUNTING AND APPROPRIATION DATA

(REV. 11/2016)

is required to sign this document and return ___________ copies to the issuing office. is not, 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.

15C. DATE SIGNED

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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

D. OTHER

Contractor

16C. DATE SIGNED

14. DESCRIPTION OF AMENDMENT/MODIFICATION

16B. UNITED STATES OF AMERICA

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.

15A. NAME AND TITLE OF SIGNER 16A. NAME AND TITLE OF CONTRACTING OFFICER

15B. CONTRACTOR/OFFEROR

STANDARD FORM 30 PREVIOUS EDITION NOT USABLE

Prescribed by GSA - FAR (48 CFR) 53.243

(Type or print) (Type or print)

(Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

(Number, street, county, State and ZIP Code)

(If other than Item 6)

(Specify type of modification and authority)

(such as changes in paying office, appropriation date, etc.)

(If required)

(SEE ITEM 11)

(SEE ITEM 13)

(X)

CHECK

ONE

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

(Signature of person authorized to sign) (Signature of Contracting Officer)

1 4

0001 09-08-2026

Department of Veterans Affairs Network Contracting Office 6 100 Emancipation Drive Hampton VA 23667

Department of Veterans Affairs Network Contracting Office 6 100 Emancipation Drive Hampton VA 23667

To all Offerors/Bidders

36C24626Q1007

X

X X

** HOUR & DATE for Receipt of Offers is EXTENDED to: 09-24-2026 08:00 EDT

See CONTINUATION Page

MAKE CHANGES TO SOLICITATION

x 1

PURPOSE OF THIS MODIFICATION IS TO ADD A SITE VISIT, QUESTION DUE DATE, ANSWER QUESTIONS, AND EXTEND THE QUOTE DUE DATE.

1. SITE VISIT IS BEING ADDED FOR SEPTEMBER 17, 2026 @ 0900 AM EST AND TO MEET AT BLDG 31 ON MAP PAGE 4.

2. QUESTIONS TO THE SOLICITATION ARE DUE SEPTEMBER 21, 2026 @ 0900 AM EST.

3. QUESTIONS HAVE BEEN ANSWERED ON PAGE 3 & 4 OF THIS AMENDMENT.

4. QUOTES ARE DUE NLT SEPTEMBER 24, 2026 @ 0900 AM EST.

AMY BALICAT

CONTRACTING OFFICER

CONTINUATION PAGE

A.1 PRICE/COST SCHEDULE

ITEM INFORMATION

ITEM

NUMBE

R

DESCRIPTION OF

SUPPLIES/SERVI

CES

QUANTI

TY

UNI

T UNIT PRICE AMOUNT

12.00 MO _______________

WATER SYSTEM TREATMENT & MAINTENANCE

LEGIONELLA TESTING

Contract Period: Base POP Begin: 10-02-2026 POP End: 10-01-2027

WATER SYSTEM TREATMENT & MAINTENANCE

LEGIONELLA TESTING

Contract Period: Option 1 POP Begin: 10-02-2027 POP End: 10-01-2028

WATER SYSTEM TREATMENT & MAINTENANCE

LEGIONELLA TESTING

Contract Period: Option 2 POP Begin: 10-02-2028 POP End: 10-01-2029

GRAND TOTAL _______________

• Cooling Towers: SPX Model# NG8413XAS1

• Chilled Loop: Entire campus on chilled water loop

• Hot Water Loop: No hot water loop on campus

• Chiller tonnage and the number, size, and system volume of the cooling towers. 1200 ton 3600 GPM QTY:3 Cooling Towers

• The make/model of the existing cooling tower controllers and whether the contractor is expected to provide new controllers or only monitor and maintain existing equipment. SPX Model# NG8413XAS

Siemens controls (monitor and maintain)

• The current cooling tower chemical program, including whether dual biocide is required and whether liquid or solid chemicals are acceptable. Liquid chemicals

• The number and volume of closed-loop systems, current treatment chemistry, and required control limits. 2 systems chilled water loop and condenser loop

• Whether glycol is currently present, the glycol type and concentration, and whether makeup or replacement glycol must be included in the contractor's pricing. No Glycol

• The number of Legionella testing events and samples required annually, sampling locations, testing method, and whether remediation is included in the contractor's responsibility. Monthly test with remediation included all closed loops third party testing

• The required frequency of onsite service, testing, reporting, and equipment calibration.

omonthly

• Historical chemical usage, annual estimated quantities, and whether chemicals are expected to be provided without quantity limits under the fixed price. NA

• Clarification of exactly what is included under each CLIN, including labor, chemicals, equipment, repairs, glycol, Legionella testing, monitoring, and emergency services. o Everything listed above except Glycol

• Who is the current contract vendor? Current contract holder is HGS Engineering with contract# 36C24622F0001

• Who currently owns the equipment? VA

• If any chemical feed needs to be replaced, will the VA purchase it? 1. Contractor responsible

• Will glycol be purchased separately? No Glycol

• How often do you want legionella testing done? Monthly

• Can you provide how many systems have glycol? None

• It mentions quarterly closed loop reports. Do closed loops only need to be tested quarterly?

Monthly

• Please provide the volumes of the chilled and hot water loops. NA

• Are the loops currently treated to within the recommended parameters, and do the loops suffer from any significant leakages? Recommended parameters

• No significant leaks at this time