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 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 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 NUMBER

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

Amendment 0001: Supply and deliver the Block 14 (Description of Amendment/Modification):

DC and preferred AC System to the J. Percy Priest Dam and Powerhouse.

PURPOSE: The purpose of this amendment is to:

1) Respond to solicitation inquiries. These inquiries are identified and addressed in this solicitation amendment. Refer to RFO Provision 52.252-3, Alterations in Solicitation, for complete details.

2) Add and revise attachments.

3) RFO Provision 52.252-3, Alterations in Solicitation, is updated to include amendment 0001 information.

4) The offer due date is extended to 5 November 2026 by 3:00 PM Central Standard Time.

5) All other terms and conditions of the solicitation remain unchanged.

Solicitation/Contract Form

The following changes have been made:

INFORMATION FROM TO

Response Due Date

02 Nov 2026 05 Nov 2026

List of Attachments

The attachments table has changed from:

Identifie r

Document Name

Document Description Reference Identifier

Date Line Item Page N umbers

Docum ent Type

Provide d Under Separat e Cover

0005 Attachment 0005 - Amended

TSPECS

Sections

Statement of Work 28 Oct 2026 Attach ment

No

0006 Attachment JPP Supply Layout 28 Oct 2026 Attach No

W912P527QA0010001

0006 - JPP

Supply Layout ment

0007 JPP

Powerhouse Photos

JPP Power 28 Oct 2026 Attach ment

No

To:

Identifie r

Document Name

Document Description Reference Identifier

Date Line Item Page N umbers

Docum ent Type

Provide d Under Separat e Cover

0005 Attachment 0005 - Amended

TSPECS

Sections

Statement of Work 28 Oct 2026 42 Attach ment

No

0006 Attachment

0006 - JPP

Supply Layout

JPP Supply Layout 28 Oct 2026 2 Attach ment

No

0007 JPP

Powerhouse Photos

JPP Power 28 Oct 2026 39 Attach ment

No

The following contract documents were added:

Attachment 0001 - Price Schedule - Updated by Amendment 0001 Attachment 0003 System Replacement Specification Drawings - Updated by Amendment 0001 Attachment 0005 - Amended TSPECS Sections Attachment 0006 - JPP Supply Layout JPP Powerhouse Photos

The following contract documents were deleted:

Attachment 0001 - Price Schedule Attachment 0003 - System Replacement Specifications Drawings

The following contract documents Page Counts were changed:

DOCUMENT PAGE COUNTS

DOCUMENT NAME FROM TO

Attachment 0005 - Amended TSPECS Sections none 42

Attachment 0006 - JPP Supply Layout none 2

JPP Powerhouse Photos none 39

Instructions, Conditions, & Notices to Offerors or Quoters

The following clauses were modified:

52.252-3 Alterations in Solicitation. Apr 1984 hereby reads as follows:

Alterations in Solicitation (Apr 1984)

Portions of this solicitation are altered as follows:

Amendment 0001: Supply and deliver the DC and preferred AC System to the J. Percy Priest Dam and Powerhouse.

PURPOSE: The purpose of this amendment is to:

1) Respond to solicitation inquiries. These inquiries are identified and addressed within this provision.

2) Add and revise attachments.

3) The offer due date is extended to 5 November 2026 by 3:00 PM Central Standard Time.

4) All other terms and conditions of the solicitation remain unchanged.

Attachments are updated as follows:

Attachment 0001, Price Schedule, is replaced with an amended price schedule.

Attachment 0002, TSPECS JPP DC & AC Preferred AC System RTA 13 Oct 2026, is not replaced.

The following sections of Attachment 0002 are replaced in entirety by Attachment 0005: Sections:

01 11 10.00 26, 01 22 00, 26 05 00.00 26, 26 28 00.00 26, and 26 32 36.00 26.

Attachment 0003, System Replacement Specification Drawings, is replaced with revised drawings.

Attachment 0004, System Referenced Drawings, has no changes.

Attachment 0005, Amended TSPECS Sections, is added for the purpose of replacing sections of Attachment 0002. The sections replaced are 01 11 10.00 26, 01 22 00, 26 05 00.00 26, 26 28

00.00 26, and 26 32 36.00 26.

Attachment 0006, JPP Supply Layout, is added.

Attachment 0007, JPP Powerhouse Photos, is added.

Inquiries:

Inquiry 1: Please clarify the required manual transfer switch. Section 01 22 00 specifies a UL 98-listed, 600A manual transfer switch, while Section 26 05 00.00 26, paragraph 2.19, specifies a UL 1008-listed, 800A minimum manual transfer switch. Which specification governs?

Response for Inquiry 1: Section 01 22 00, CLIN 0005 has been updated via Attachment 0005 to specify one UL 1008-listed, 800A Manual Transfer Switch.

Inquiry 2: Please confirm the required quantity of warning lights and whether the differential pressure switch is included. Section 01 11 10.00 26 specifies one differential pressure switch and three warning lights, while the CLIN 0009 payment description lists only two warning lights and omits the differential pressure switch from its item description.

Response for Inquiry 2: The differential pressure switch and all three (3) warning lights are included in the scope of work, reference Attachment 0005. These items shall be priced under CLIN 0009.

Inquiry 3: Please clarify the enclosure material requirements. Paragraph 2.3.1 specifies stainless-steel NEMA Type 12 enclosures, while paragraph 2.5 specifies a NEMA 3R enclosure for the automatic transfer switch. Is stainless steel required for all applicable enclosures, or is painted carbon steel acceptable for any of them?

Response for Inquiry 3: Stainless steel is required for the Automatic Transfer Switch (ATS) enclosure. Attachment 0005 updates paragraph 2.5 to require that the ATS be mounted inside a stainless steel enclosure rated NEMA 3R and UL 1008 listed. Indoor enclosures must conform to the stainless-steel NEMA Type 12 rating specified in paragraph 2.3.1. Standard carbon steel is not acceptable for these designated enclosures.

Inquiry 4: The solicitation includes Buy American/Balance of Payments and related domestic-source clauses. Please confirm whether any separate Trade Agreements Act (TAA) requirements or certifications apply to the offered equipment in addition to the listed clauses.

Response for Inquiry 4: No separate Trade Agreements Act (TAA) apply. The procurement is strictly subject to RFO DFARS 252.225-7001, Buy American and Balance of Payments Program, and RFO DFARS, 252-225-7000, Buy American Balance of Payments Program Certificate.

Offerors are required to provide certifications as applicable in accordance with RFO DFARS 252.225-7000.

Inquiry 5: Please confirm the required delivery deadline or delivery period. Section 01 00 00 specifies the delivery location, two weeks' advance notice, and delivery hours, but does not identify a specific required delivery date.

Response for Inquiry 5: Reference Solicitation Section F, Deliveries or Performance. The required delivery for all requirements is on or before 10 June 2027. A two-week notice is required prior to any deliveries.

Inquiry 6: Please confirm the invoicing requirements and payment timeline applicable to this contract. Section 01 22 00 establishes lump-sum payment by CLIN but does not specify the project-specific invoicing and payment timeline.

Response for Inquiry 6: Invoices will be processed in accordance RFO 52.212-4. Payment timelines will be in accordance with the Prompt Payment Act (31 U.S.C. 3903). An invoice must include the information required by 5 CFR part 1315.9(b). Invoices may be submitted by CLIN after delivery of all items required by the applicable CLIN.

Inquiry 7: Please confirm whether the Government intends to witness the specified factory tests in person or waive attendance, and clarify whether travel costs for Government representatives are the Government's responsibility or must be included in the contractor's price.

Response for Inquiry 7: The Government intends to witness factory tests in person. In accordance with Attachment 0005 Section 26 32 36.00 26, paragraph 3.1.1, and Section 26 28 00.00 26, paragraph 3.1, tests must be witnessed by the Contracting Officer's Representative (COR) unless waived in writing. The contractor must notify the COR 15 days in advance for inverters and 30 days in advance for panelboard tests. Travel costs for Government representatives are at the Government's expense and should not be included in the contractor's pricing.

Inquiry 8: Can a pre-award site visit be arranged to verify equipment dimensions, conduit entry points, and access pathways before pricing and manufacturing?

Response for Inquiry 8: No, there will not be a pre-award site visit. Please reference SECTION 01 11 10.00 26 1.1.1, General, and Attachment 0007 for spatial requirements information.

Inquiry 9: Please confirm which drawing set governs the solicitation. Attachment 0003 contains drawings marked "Final" with an older solicitation number in the title blocks, while Attachment 0004 contains reference drawings marked "90% Review." Are the Attachment 0003 drawings the current final drawings, and are the Attachment 0004 drawings for reference only?

Response for Inquiry 9: Attachment 0003 has been updated to list the correct solicitation number.

Attachment 0004 is provided for Reference.

Inquiry 10: Section 01 22 00 includes CLIN 0014 for final record drawings, but Attachment 0001 lists only CLINs 0001-0013. Should CLIN 0014 be priced separately, and will a revised price schedule be issued?

Response for Inquiry 10: Attachment 0001, Price Schedule, is updated and now includes CLINS 0014 and 0015.

Inquiry 11: Sections 10 44 16 and 10 14 00.20 specify two 15-pound CO2 fire extinguishers and interior signage, but Attachment 0001 does not identify separate CLINs for these items. Which CLIN should cover these items, or will the price schedule be amended?

Response for Inquiry 11: Attachment 0001, Price Schedule, is updated and now includes CLIN 0015 (Supply interior signage). Fire extinguishers specified in Section 10 44 16 must be priced as incidental to CLIN 0009 (Safety support equipment). Signage specified in Section 10 14 00.20 will be paid separately under CLIN 0015.

Inquiry 12: Please confirm whether proposed technical deviations or equipment substitutions may be included with the offer for evaluation and, if so, what documentation is required. Section 01 33 00 states that variations require Contracting Officer approval.

Response for Inquiry 12: Technical deviations or equipment substitutions shall not be included with the offer.

(End of Provision)

KO CONTRACTING DIVISION, 801 BROADWAY RM A604

NASHVILLE, TN 37203-1070

UNITED STATES

RICHARD HESTER, EMAIL: RICHARD.B.HESTER@USACE.ARMY.MIL TELEPHONE: 615-736-7367

AdminBy:

SCD: PAS: