11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

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 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of theoffer 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 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.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

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

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

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

NUMBER 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, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

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

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

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

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

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

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

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X) 9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBE

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

J 1 6

0007 01 JUNE 2026 26-9

W912DS

W2SD ENDIST NEW YORK

KO CONTRACTING DIVISION, 26 FEDERAL PLAZA ROOM 16 300

NEW YORK, NY 10278-0004

UNITED STATES

ORLANDO NIEVES, EMAIL: ORLANDO.NIEVES@USACE.ARMY.MIL TELEPHONE:

(917) 790-8078

SCD: PAS:

W912DS26RA015

17 APR 2026

SEE SECTION G - CONTRACT ADMINISTRATION DATA

See Schedule

MATTHEW LUBIAK

29 MAY 2026

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

The purpose of this Amendment 0007:Block 14 (Description of Amendment/Modification):

1) Proposals due date remains 19 June 2026 @ 2:00 P.M. EST.

2) The cutoff date and time for emailing RFIs to the Contracting Division is Jun 2nd, 2026, at 3:00

P.M. EST

3) Respond to Bidder Request for information. For information Only.

NOTE: Bidders must acknowledge receipt of this amendment by date specified in the bid (or as amended) by one of the following methods: In the space provided on the SF 1442, by separate letter, or by signing block 15 below. FAILURE TO ACKNOWLEDGE AMENDMENT BY DATE

SPECIFIED MAY RESULT IN REJECTION OF YOUR BID IN ACCORDANCE WITH THE LATE

BID, LATE MODIFICATION OF BID, OR LATE WITHDRAWAL OF BID (FAR 14.304)

Section 01 00 00 - General Requirements

Miscellaneous text in this section has been modified to:

Watervliet Arsenal

Electrical Switching Station North

W912DS26RA015

Amendment 0007

AMENDMENT 0007 to DRAWINGS and SPECIFICATIONS for Watervliet Arsenal Electrical Switching Station North.

TO OFFERORS

The following changes shall be made to the drawings and specifications.

DRAWINGS

1. The following DRAWINGS have been REVISED but NOT REISSUED:

- None

2. The following DRAWINGS have been REVISED and REISSUED

W912DS26RA0150007

- None

3. The following DRAWINGS have been ADDED:

- None

4. The following DRAWINGS have been DELETED:

- None

SPECIFICATIONS

1. The following SPECIFICATION SECTIONS have been ADDED and are provided in their entirety herein:

- None

2. The following SPECIFICATIONS SECTIONS have been DELETED in their entirety:

- None

3. The following SPECIFICATIONS SECTIONS have been REVISED and REISSUED:

- None

4. The following SPECIFICATIONS have been REVISED but NOT REISSUED:

- None

PROPOSER'S QUESTIONS AND GOVERNMENT REPLY

Questions that may be of general interest to all Offerors and/or the Government and that are not readily answered by the proceeding changes will appear below. These questions may have been paraphrased or altered to represent several questions regarding the same subject and/or simply revised to clarify and simplify the question(s). Questions and answers are issued to the Offerors "for information only" and do not revise the solicitation, plans or specifications.

BIDDER INQUIRY 76: For Keyed Note 4 on Sheet E-101, what detail are we to follow for the installation of the (2) - 5" and (2) - 1" Conduits from the Switchgear to the Generators for the depth and the concrete encasement of the conduits?

RESPONSE: See detail C6/C-402.

BIDDER INQUIRY 77: Per J1/E-501, Typical Building Grounding Detail, what are the lengths of the

Schedule 80 PVC Sleeve that is to be installed in the concrete slab?

RESPONSE: 1.5 feet to concrete encased electrodes each equipment and EGB bonding.

Approximately 25 feet for each lightning protection downlead see Typical Through Roof Downlead Detail in sheet E-502.

BIDDER INQUIRY 78: For the storm drain piping that is to be installed shown on Sheet C-403, Keyed Note 2, it refers to Detail D8/C-505. This Detail is not shown on this sheet. Can this Detail be provided?

RESPONSE: Please see Detail A3 on C-505 for the storm drain trench detail.

BIDDER INQUIRY 79: On Sheet C-403, it calls to install a 4"x4"x6" Tee connecting to the Foundation

Drain. There is no Detail provided. Could a detail for this tee be provided?

RESPONSE: The 4"x4"x6" Tee will connect the foundation drain around the foundation perimiter (4" perforated SCH-40 pipe) to the 6" SDR 26 PVC outlet pipe (FD-1) that drains into CB 5.

BIDDER INQUIRY 80: There does not seem to be a clear detail for the foundation drain that is to be installed around the perimeter of the New Switch Station. Can a detail be provided?

RESPONSE: Detail L12 on S-501 calls out the foundation drain adjacent to the building foundation. The foundation drain is a 4" perforated SCH 40 pipe, holes facing down, in 3/4" crushed stone adjacent to the building foundation footer. The 3/4" crushed stone is wrapped in non-woven geotextile fabric.

BIDDER INQUIRY 81: Will GIS be required?

RESPONSE: Adhere to contract documents.

BIDDER INQUIRY 82: General for all existing manholes through which conductors or cables are being pulled: Do manholes contain adequate racking with arms or will new racks and arms be required? If new is required, how many are required in each manhole?

RESPONSE: New racks and arms must be provided. Provide one for each set of three phase conductors per loop. racks and harm to maintain splices at 4 feet above the floor of the manhole.

BIDDER INQUIRY 83: Should the NTP date remain as 01JUN26?

RESPONSE: 19 JUNE, cut off for RFIs Tuesday 2 JUNE.

BIDDER INQUIRY 84: Drawing Sheet C-401 note 24 states "Footprint Allocated for Future Switch" did not note 24 on this sheet's plan. Please advise?

RESPONSE: KN 24 is in the plan view, located plan north of the 3 switch pads, adjacent to CB3.

BIDDER INQUIRY 85: On drawing C-403 Plan A1 believe note 5 west of Hanger Road should be note 6. Please advise.

RESPONSE: Correct, KN 5 west of Hangar Road should be KN 6.

BIDDER INQUIRY 86: Spec states "a dedicated internet service provider line for Government-only use. Coordinate with Government (ACE-IT) for required internet speed." Can this be any internet service provided? What is the required speed?

RESPONSE: 100mbps.

BIDDER INQUIRY 87: Under contractor must supply: a. new work station - how many - please confirm 3. Note below says computer hardware by Gov - please confirm we are providing just chair, cabling, garbage can per workstation. Does workstation mean desk? Do we provide desks too?

RESPONSE: 3 workstations per specs. Workstations include desks.

BIDDER INQUIRY 88: Under contractor must supply: c printer - please confirm we are not to provide a printer, just paper and ink/toner. Please confirm type.

RESPONSE: Ink and paper. No printer.

BIDDER INQUIRY 89: Under contractor must supply: antenna - please provide make/model.

RESPONSE: Antenna brand name cannot be provided. Antenna must be FCC Approved, 65dB Dual Band Cell Repeater with High Gains Antenna, Supports both AT&T and Verizon, Supports up to 5G, and Mountable on the exterior of the trailer.

BIDDER INQUIRY 90: "Specification 22 05 48.00 20, Section 3.1.8 states, in part, to "provide vibration isolation for piping...for a distance of 50 feet or 50 pipe diameters, whichever is greater."

"Specification 22 05 48.00 20, Section 3.1.10.4 states "when piping is not connected to vibrating machinery with flexible connectors, provide the first four hangers with isolation elements..."

Which Section, 3.1.8 or 3.1.10.4, takes precedence? Do piping systems isolated from vibrating machinery with flexible connectors require hangers with isolation elements?"

RESPONSE: 3.1.8 applies to equipment which has flexible connectors; 3.1.10.4 applies to the other equipment. Both of these situations require the hangers to have vibration isolation.

BIDDER INQUIRY 91: Reference specification section 014500 page 11, paragraph 1.6.7 states "Provide a Submittal Reviewer, other than the QC Manager, qualified in the discipline being reviewed, to review and certify that the submittals meet the requirements of this Contract prior to certification or approval by the QC Manager. Each submittal must be reviewed by a registered architect or professional engineer." Is the contractor to supply an architect/PE for submittal review?

RESPONSE: Adhere to contract documents.

BIDDER INQUIRY 92: The main substation was not allowed for viewing during the walkthrough, please confirm the following: The kirk-key installation as designed at breaker R51, R52 and the tie can be performed without de-energizing any equipment and there is sufficient space in the existing breaker cabinets for these.

RESPONSE: See attached photos.

BIDDER INQUIRY 93: Please identify each picture provided with Addendum #3 so that we can understand which pieces of equipment correspond to the scope indicated on the drawings.

RESPONSE: See attached photos.

BIDDER INQUIRY 94: Square-D requires that we provide a picture of the nameplate of the existing switchgear 1A1 for them to provide pricing on the new 1000a breaker designed.

RESPONSE: See two photos attached.