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This document is Amendment 0023 for Solicitation No. N62473-24-R-5227, a federal contract for constructing a 10MW Battery Energy Storage project at the Marine Corps Air Ground Combat Center in Twentynine Palms, California. The amendment serves two primary purposes: 1) closing discussions and requesting final proposal revisions (FPRs) from Phase Two Offerors who submitted on-time proposals on August 08, 2025, and 2) updating the Department of Labor Construction Wage Determination in Section 11 of the Request for Proposal (RFP) Part 1, specifically changing the wage determination from Modification 8 dated 08/01/2025 to Modification 10 dated 08/15/2025. The amendment includes two enclosures: the revised RFP Part 1 for Phase Two and the updated Wage Determination, and requires offerors to acknowledge receipt of all amendments on the offer schedule.

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Text version

AMENDMENT 0023

Date: August 21, 2025

Solicitation No.: N62473-24-R-5227

P-1238 CONSTRUCTION OF GRID STABILITY & RESILIENCY 10MW BATTERY ENERGY

STORAGE MARINE CORPS AIR GROUND COMBAT CENTER

TWENTYNINE PALMS, CALIFORNIA

The purpose of this amendment is to:

1. Close discussions and request final proposal revisions (FPRs) for Phase Two Offerors who submitted on-time proposals on August 08, 2025. Offerors are to review FPR letters provided via email.

2. Incorporate the current Department of Labor Construction Wage Determination update in Section 11 of the Request for proposal (RFP) Part 1:

FROM:

The minimum wages, required to be paid for work under this contract, are in accordance with U.S.

Department of Labor, General Decision No. CA 20250026 Modification 8 dated 08/01/2025. The General Wage Decision can be found at the following website: www.sam.gov

TO:

The minimum wages, required to be paid for work under this contract, are in accordance with U.S.

Department of Labor, General Decision No. CA 20250026 Modification 10 dated 08/15/2025. The General Wage Decision can be found at the following website: www.sam.gov

3. ALL OTHER PARAGRAPHS, PROVISIONS, AND CONDITIONS OF SOLICITATION N62473-24-R-

5227 REMAIN UNCHANGED. THE OFFEROR MUST ACKNOWLEDGE RECEIPT OF ALL

AMENDEMENTS ON THE OFFER SCHEDULE.

Enclosures:

1. ENCL 1 - P1238 Final RFP_Part 1_Phase Two_AMEND 0023_REVISED_21AUG2025

2. ENCL 2 - Wage Determination CA 20250026 Modification 10 dated 08/15/20 http://www.sam.gov/

File details come from the government source that posted it. Updated .