36C25726B0001 0004.pdf

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) none

549-23-601

36C257

Network Contract Office 17

Department of Veterans Affairs

11495 Turner Road

El Paso TX 79936-4221

36C257

El Paso Contracting Office

Department of Veterans Affairs

11495 Turner Road

El Paso TX 79936-1372

To all Offerors/Bidders

36C25726B0001

X

X X

** HOUR & DATE for Receipt of Offers is EXTENDED to: 06-01-2026 10:00 CDT

Amendment 0004 is issued to extend the proposal due date, provide clarifications to the RFIs, and announce an additional pre-bid site visit.

The additional site visit is scheduled for Wednesday, May 13, 2026, at 10:00 AM CST. Participants will meet at the front desk/waiting area of Building 9 at the Dallas VA Medical Center, located at 4500 S. Lancaster Rd., Dallas, TX 75216.

Rhonda Richardson

Contracting Officer

CONTINUATION PAGE

Project: 549-23-601 Upgrade Chillers & Cooling Towers at Energy Center - Clarifications

1. RFI response question 12- it call for existing valves to remain and be reused, however it later call for pneumatic to be replaced.

Response: Replace any and all pneumatic actuators with DDC. Contractor shall be responsible for assessing the condition of all existing valves being reused. If the pneumatic actuator and valves cannot be converted to DOC, valve and actuator shall be replaced.

2. RFI response question 14- the answer does not match the question given and does not address the situation. There are not additional isolation valve before the pump and there is no way to change the control valve without performing a pipe freeze. Additionally, the bypass piping if after the control valve so it cannot function in per the drawings.

Response: Yes - means and methods are the contractor's responsibility. All shutdowns shall be coordinated with the VA. Provide any additional valves needed for pump/chiller replacement to ensure equipment functions according to the existing sequence of operation.

3. There seems to be some confusion on if the existing vfd's can be reused or replaced.

Response: We see no issue with the reuse of the existing VFD's that serve the existing pumps unless the new pumps have a higher HP rating. For example, if the VF D's are rated for 20 HP but a 25 HP pump is to be installed the VFD will need to be replaced. There is no option to reuse starters associated with the Chillers to be replaced.

4. Can you please provide clarification on the following? There is a discrepancy in the verbiage related to the notes below. I assume we are sticking with the current (remote mounted) configuration

Response: See response to question 6.

5. Note 14 states: 5kv solid state starter soft starter. Chiller 7 has a remote mounted, variable speed drive. Are we to match that style or follow the plans using the soft starter?

Response: Mechanical Specifications and mechanical schedules dictate the requirements for the new chillers. Spec Section 23 64 00, par 2.1.Y calls for a variable speed drive for the chillers integral to Chiller package. Chiller schedule on M-501 calls for the new chillers to be rated for 4160V service.

6. Page m-501 - chiller schedule (ccu) note 2 states: "provide factory mounted starter and disconnect switch" - the current setup has for chiller 3-6 has remote mounted solid state reduced voltage starter.

Response: This std note is applicable for 480V chiller packages, not 4160V. Note 2 is not applicable to this project.

7. Page e-201- electrical keynote: note 14 (truncated) - combination electronic 5kv solid state starter (soft starter) with disconnect for new chillers provided with chiller package.

Response: See response to RFI 5 above.

8. We received notice that eaton (the manufacturer for the fuse buckets for the existing switch gear) is not releasing pricing as they claim what is specified is no longer available. See statement from eaton below:

At the end of 2025, eaton discontinued all classic ampgard full starters and load break switch offerings.

We can provide these in our nextgen ampgard. Eaton does not offer retrofit into existing cells either.

The new switches would be in entirely new structures and to close couple them to existing lineup requires splitting and separating the existing lineup to fit new structures.

Response: This project requires the replacement of (3) 350A existing molded case circuit breakers inside MCC-CH1 with (3) 225A circuit molded case breakers. There are no starters or load break switches as part of this work. This work does not require the replacement of the buckets that hold these breakers.

Provide new breakers to match existing style and AIC rating. Field retrofit to MCC2 to perform this work.