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This document is a Standard Form 30 (SF-30) Amendment 0006 for Solicitation Number N4008525R2511, a Design-Build (DB) project to replace backup power generation systems at Naval Support Activity Hampton Roads in Norfolk, Virginia. The key changes include:

The proposal due date is extended from July 1, 2025, at 2:00 PM EDT to July 15, 2025, at 2:00 PM EDT. The amendment provides responses to pre-proposal inquiries regarding technical specifications for the project, including details about UPS equipment, battery systems, generator requirements, and commissioning processes. Specific clarifications include confirmation that the project requires two 250 kVA UPS units with independent 15-minute battery systems, VRLA AGM batteries with cell monitoring, and fan-powered battery cabinets. The total contract duration is specified as 741 calendar days from the date of award, and the contract is restricted to specific Multiple Award Construction Contract (MACC) holders for the Hampton Roads Area of Responsibility.

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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 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.

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

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

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

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

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

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.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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)

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.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

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

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

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

N40085

N40085-25-R-2511 - DESIGN-BUILD (DB), P-1401 REPLACE BACKUP POWER GENERATION UPS, PLC’S, NAVAL

SUPPORT ACTIVITY HAMPTON ROADS NORFOLK, VIRGINIA

POC: Jonathan Castillo, jonathan.y.castillo.civ@us.navy.mil

Please see continuation pages.

NAVFACSYSCOM MID-ATLANTIC

CONTRACTING CORE

9324 VIRGINIA AVENUE

NORFOLK VA 23511-3095

See Item 6

N40085-25-R-2511

1 6

06/26/2025

04/23/2025

N4008525R2511

Section SF 30 – Block 14 continuation page (SF 30)

The following have been added by full text:

AMENDMENT 0006

This amendment is issued to incorporate the following:

1. The proposal due date is extended from 1 July 2025 at 2:00PM EDT TO 15 July 2025 at 2:00PM

EDT.

2. Provide responses to Pre-Proposal Inquiries

3. Provide Attachment M - 01 91 00.15 22 Revised Processed (attached separately)

1. Proposal Due Date

Proposal Due Date: The proposal due date is hereby extended from 1 July 2025 at 2:00PM EDT TO 15 July 2025 at 2:00PM EDT.

Please note that no additional Pre-Proposal Inquiries will be accepted.

2. Pre-Proposal Inquiries

The Pre-Proposal Inquiry due date remains the same. The Government will not be accepting Pre- Proposal Inquiries.

PPI # Page Section Paragraph Question Responses 23 Part 3, Chapter 6, Section A10

A1030 Ground Floor Slabs

Confirm that this section is for interior slabs only (within a building) and the perimeter and under slab insulation does not apply to exterior concrete slabs/pads.

Part 3, Chapter 6, Section A10 is intended for interior and exterior slabs as determined by the

DOR.

27 01 31 19.05

Please confirm a CDW is required for this project. If so, please provide an expected duration.

Confirmed. The duration of the CDW will be determined by the DOR as needed to meet the necessary project requirements.

41 Part 3, Ch 6 ESR D50 states:

“Switchboard with three Generator protections and PLCs with Generator controls/HMI must comply with UFC 3-540- 01 Engine-Driven Generator System for Prime and Standby

Confirmed. Physical constraints of the existing building would not apply.

Power Applications.” UFC 3- 540-01 2-5.4.3 requires minimum of 30” working clearance around each draw-out circuit breaker when in the “withdrawn” position. The existing switchboard does not meet these requirements. Please confirm existing clearance deficiencies do not need to be addressed.

44 Att F Part 3, ch 6 ESR D509002 under base bid states: “Replace the two existing 500kVA UPS and provide two 250 kVA static, double conversion units.” Please confirm that (2) 500 kVA UPS will be replaced with (2) 250 kVA UPS.

Confirmed.

45 NEC Article 701.32(C) states:

“If modifications, additions, or deletions to the legally required standby system(s) occur, selective coordination of the legally required system(s) OCPDs with all supply-side and load-side OCPDs shall be reevaluated.” To comply with 701.32(C), the entire EPSS would need to be included in the selective coordination study, not just the new equipment. Please confirm that we don’t need to comply with 701.32(C), but that we can just limit the scope of the study to new equipment and existing equipment connected to new equipment.

Confirmed.

47 261 2.3.4 RFP Part 3 §2.3.4 says “[p]rovide a secured area within the building that complies with the Intelligence Community Standard (ICS) Number 705-1.”

Please clarify Contractor’s scope of work relative to this requirement.

This requirement is located under Chapter 2 paragraph 2.3.4 "Antiterrorism" under Project Specific Priorities.

Priorities does not apply to this project.

64 General Please verify that all new flooring will not require any Confirmed.

floor leveling to be installed. If the contractor is required to install floor leveling, please provide the location and thickness required.

65 General Please verify that the contractor will need to include the cost of the builder's risk insurance.

As this is a Firm-Fixed Priced contract, please include all costs necessary to complete the work in accordance with the specifications.

80 3 01 91 00.15

1.2 Please verify that the

commissioning provider will be hired by the government for this project as indicated in section

019100.15 20 1.2. Per section

019100.15 20 1.10, the commissioning firm will need to be a 1st tier contractor hired by the general contractor.

Confirmed. Please see Attachment M - Revised 01 91 00.15 22 Processed provided with Amendment 0006.

81 14 01 91 00.15

3.7.5 Please verify that the only

commissioning required for this project relates to the new work.

Therefore the building envelope inspection and testing will not be required.

Confirmed.

85 307 6 D50 Please verify that the contractor will be required to provide a temporary 1200kW 208Y/120Y V generator for the base bid as required per page 307 of the electrical system requirements.

Please see Attachment F, provided with the RFP.

The sizing and the method of connection is at the discretion of the Contractor.

86 307 6 D50 Please verify that the contractor will not be required to provide the temporary generator while design is taking place.

Confirmed. Temporary generator would be required to perform duties of backup systems under construction.

88 307 6 D50 If the contractor is not to provide the temporary generator until the two UPS are to be removed, please verify when the owner would not need the two UPS removed before the contractor has the replacement equipment required to start construction on-site.

Contractor shall have DOR develop a design that complies with requirements as per the RFP, including phasing.

91 Bid Form Please verify if the contractor will be granted added time if any of the bid alternates are accepted. If so, please provide the amount of added time per alternate.

The duration of this task order, including Bid Options, shall be 741 calendar days from date of award.

93 307 6 D50 For the UPS equipment, please confirm that the utility input feeds are 208/120 @ 2000A

Confirmed. Bypass and Input sizes may vary but both are fed from a 208Y/120V switchboard.

95 307 6 D50 For UPS equipment, please confirm the UPS selection switch depicted in DWG E-5 is an STS/Static Transfer Switch

No, DWG E-5 is from the original construction and does not apply to the present configuration.

97 307 6 D50 Please verify that the UPS room 199A is located in a room that the ambient temperature is maintained at 77 degrees Fahrenheit and the air is filtered.

No. The HVAC and exhaust system of the UPS room and Battery room are not in this scope of work.

98 307 6 D50 Please confirm that each UPS should have an external wrap around 3 breaker maintenance bypass.

Confirmed.

99 307 6 D50 Please verify that each UPS output will be tied to a static transfer switch as source 1 and source 2.

Confirmed.

100 307 6 D50 Please confirm the voltage of the DC bus of the existing UPS equipment (Assumes 380VDC by drawings).

No, DWG E-5 is from the original construction and does not apply to the present configuration.

Please bid per RFP.

101 307 6 D50 Please confirm that UPS 1 & 2 will be sharing a battery system.

No, the RFP requires each 250 kVA module to have its own independent 15-minute battery system.

102 307 6 D50 Please verify that each new UPS can have a different DC bus voltage (i.e. 125 VDC).

Bid per the RFP.

103 307 6 D50 Please verify the intent is to have a centralized battery system. If not, please verify that the new UPS will have it's own dedicated battery system.

The RFP requires each 250 kVA module to have its own independent 15-minute battery system.

104 307 6 D50 Please advise if the new battery system should be wet cell, sealed VRLA or Lithium.

The RFP requires all replacement batteries to be VLRA AGM to minimize Hydrogen outgassing.

105 307 6 D50 If the new battery systems to be wet cell or VRLA please verify that each individual cell monitoring need to be included in the design.

The RFP requires battery management system to include cell monitoring.

106 307 6 D50 If the new battery system is to be VRLA please advise on the design life and prospective operating life of the new battery system (5 year, 10 year, or 20 year design life).

The RFP requires a 10 year minimum battery system.

107 307 6 D50 If the VRLA system is to have either a 5 year or 10 year prospective operating life, please advise if the battery systems should be open rack or in cabinets.

The RFP requires fan powered battery cabinets for all new battery systems.

3. Attachment M – Revised 01 91 00.15 22 Processed is provided with this Amendment (attached separately).

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