N6247023R0001 Amend 0006.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

MILCON PROJECTS P-332 and P-334 ELECTRICAL POWER PLANT, CAMP LEMONNIER, DJIBOUTI

See Block 14 SF30 Continuation Page

1. CONTRACT ID CODE PAGE OF PAGES

J 1 11

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

16C. DATE SIGNED

BY 19-Oct-2023

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X N6247023R0001

X 9B. DATED (SEE ITEM 11)

19-Jul-2023

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

Offer 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 telegram 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 telegram or letter, provided each telegram or letter 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 NO. AS DESCRIBED IN ITEM 14.

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.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, 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.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

19-Oct-2023

CODE

COMNAVFACSYSCOM ATLANTIC

6506 HAMPTON BLVD

NORFOLK VA 23508-1278

N62470 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

N6247023R0001

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

AMENDMENT 0006

The purpose of this amendment is to:

1. Extend the Proposal Due Date

2. Respond to Preproposal Inquires (PPIs)

3. Revise Specifications

4. Revise Drawings

5. Revise the Solicitation

6. Provide Attachments

1. The proposal due date is extended from Tuesday, 07 November 2023 at 2:00 PM Norfolk, VA local time to Tuesday, 28 November 2023 at 2:00 PM Norfolk, VA local time.

2. Responses to PPIs

125. Inquiry: (Reference: Drawing No: IF 101) Please kindly confirm that all items listed starting from

A1 and ending with T2 in the furniture legend are GFGI and to be evaluated under Option Item-8 with Government Estimated Price and HAR Percent

Response: Line item 9 in the Attachment E - Price Proposal Form - discusses Option No. 8 regarding Furniture, Fixtures and Equipment (FF&E) items A1 through T2. There is only one Government Furnished Government Installed (GFGI) item, and that item is a printer which is shown in Control Room 106 on the credenza.

126. Inquiry: (Reference: SPECS : SECTION 26 29 23 ADJUSTABLE SPEED DRIVE (ASD) SYSTEMS UNDER 600 VOLTS) Per the spec 26 29 23, the Total Harmonic Distortion (THD) % for the VFD’s and with these MCC’s being 400VAC, SVX drives will be used. Passive Filters will be added to help to achieve the THD %, however, with the amount of VFD’s adding passive filters will increase the structure counts. One additional structure for every 2 VFD’s.

Please kindly confirm, if the passive filters are OK or a Harmonic Correction Unit (HCU) is required in the lineup to help keep the structure count down. No HCU was noted on the onelines.

If so, please provide the size and quantity wanted to be added for each lineup as the MCC Plant takes exception to any Harmonic Analysis.

Response: Passive filters or Harmonic Correction Units (HCUs) are acceptable. Harmonic requirements may be met by Packaged Adjustable Speed Drive ASD Building overall instead of individual ASDs. Propose in accordance with solicitation.

127. Inquiry: (Reference: 263215; 2.6.8 and 2.8.3.2) 263215 Paragraph 2.6.8 conflicts with 2.8.3.2 fuel cooling. Please confirm if a chilled water cooling heat exchanger is required or a shell and tube type air cooled radiator is to be considered in the pricing.

Response: Chilled water Heat exchanger is required and basis of design was a plate and frame type but the contractor may choose between the two types. Both will be cooled by the chilled water system.

128. Inquiry: (Reference: MP603) MP603 schedules R134a for the air cooled chillers. However, R134a for new equipment is being phased out by end of 2023. Manufacturers in the US and Europe will no longer manufacture chillers with this refrigerant. Please provide updated chiller selection criteria considering the phase out of R134a refrigerant.

Response: See amendment detail below. Reference R135A refrigerant requirements are deleted.

Contractor shall provide equipment meeting specified performance requirements in the solicitation.

129. Inquiry: (Reference: MP401B) The generator heat exchangers are called out as either plate frame or shell and tube heat exchangers. The space allocated for the generator heat exchangers appears inadequate to accommodate shell and tube heat exchangers and its necessary accessories outlined in dwg MP509/A3. Please confirm shell and tube heat exchangers are required and there is adequate space for their installation/accessories.

Response: Propose in accordance with the solicitation. Drawing MP509/A3 shows a plate and frame heat exchanger in the detail.

130. Inquiry: (Reference: 23 25 00; 2.6) Specs 23 25 00, Section 2.6 references a Generator Cooling Water Treatment Systems which includes a water treatment system, chemical pumps and tanks, blowdown lines, and controls. However, contract drawings do not depict a location for this system and the mechanical, electrical, and plumbing (MEP) drawings do not reference any rough in to support this system. Please confirm the generator cooling water treatment system is not required or provide addiitional information outlining the system requirements including but not limited to:

components, controls, location, integrations, etc etc.

Response: See amendment detail below. Specification 23 25 00 2.6 outlines a chemical treatment skid to be provided per specs and is noted on drawing MP 410. Treatment skid to treat generator cooling water shall be contractor provided. Refer to amendment detail below.

131. Inquiry: (Reference: 26 32 15; 2.8.4) Specification 26 32 15.00, 2.8.4 generator cooling loops require an expansion tank. Expansion tanks are not scheduled nor shown in the mechanical drawings. Please provide expansion tank schedule, location, and the required rough in details.

Response: Expansion tanks are required per specification section 26 32 15 2.6. The expansion tanks shall be supplied by the radiator manufacturer as stated on the Radiator schedules on drawing MP 603 in the notes. Design intent is for the expansion tank to be mounted to radiator as part of a packaged radiator system.

132. Inquiry: (Reference: MP405A/MP406A) Drawings MP405A & MP406A shows the supply and return ducts of AHU-1 through 6 transiting through 3 hr fire rated wall. However, fire dampers are not shown on these drawings at the penetrations. Please confirm fire dampers at the supply and return ducts are not required at this location.

Response: Fire dampers are not required for the supply and return ductwork of Air handling Units (AHUs) 1 through 6 at that elevation. Where such ductwork penetrates day tank room walls, refer to detail C4 on sheet AE503.

133. Inquiry: (Reference: MP005) Within the sequence of operations titled “ENGINE HALL HVAC OPERATING PROCEDURE” (middle of the fourth paragraph) it states “ALL EXHAUST FANS

MUST OPERATE AT CONSTANT SPEED AND MUST NOT BE INSTALLED WITH A VFD.

AHU 1 THRU AHU 6 MUST NOT BE INSTALLED WITH A VFD AND MUST OPERATE AT

CONSTANT SPEED AS WELL.” EF's 1-6 are 75 kW each. AHUs 1-6 are 59.7kW each. Please confirm that all of these motors are to start across the line with no soft start capability to reduce inrush current.

Response: Confirmed. The motors should start across the line with no soft start capability.

134. Inquiry: (Reference: MP601 & MP409) Fuel oil day tanks FOT-1 through FOT-10 are noted in the schedule as “Single Wall UL 142 Compliant Tanks”. In the current design, the 50 mm primary vent is shown being piped to the roof. On drawing MP409 detail C4 calls for a 150 mm Primary Emergency Vent and a 150 mm Secondary Emergency Vent to be installed on the fuel day tank but there are not shown as being vented outside. Please confirm these additional daytank emergency vents are not to be piped to the roof to comply with IFC Section 5704.2.7.4 (see below).

International Fire Code 5704.2.7.4 Emergency Venting - “Stationary, above-ground tanks shall be equipped with additional venting that will relieve excessive internal pressure caused by exposure to fires. Emergency Class I, II and IIIA liquids shall not discharge inside buildings. The venting shall be installed and maintained in accordance with Section 22.7 of NFPA 30.

Exceptions:

1. Tanks larger than 12,000 gallons in capacity storing Class IIIB liquids which are not within the diked area or the drainage path of Class I or II liquids do not require emergency relief venting.

2. Emergency vents on protected above-ground tanks complying with UL 2085 containing Class II or IIIA liquids are allowed to discharge inside the building.”

Response: See amendment detail below. Reference PPI 154 and amendment detail below. All vents must be routed to the roof including the emergency vents. The pair of emergency vents must be equipped with a rupture disk if over pressurization due to a fire. The tanks are in a diked 3 hour room to comply with NFPA 37. Provide emergency vents to comply with NFPA 30 and IFC Section 5704.2.7.4.

135. Inquiry: (Reference: MP410) There is a callout in the middle of the drawing MP410 stating

“CONTRACTOR/OWNER TO PROVIDE GLYCOL INJECTION CART TO FILL AND

MAINTAIN COOLING WATER SYSTEM." Please confirm the glycol cart equipment is not provided by the contractor.

Response: See amendment detail below and PPI #130 Response. Contractor to provide the cart/skid for the ability to treat the generator cooling water supplied this project. Specification 23 25 00 2.6 outlines a chemical treatment skid to be provided per specifications and is noted on drawing MP 410. Propose in accordance with the solicitation.

136. Inquiry: (Reference: IF101) General Note #2 on Sheet IF101 states “Furniture items indicated as GFGI, including copiers, are shown for coordination purposes only.” Please confirm that all of the items listed on this page in the Furniture Legend are to be GFGI.

Response: See response to PPI #125.

137. Inquiry: (Reference: SCADA - 251011) Please confirm if the SCADA system at PP2A comprises an IRIG-B network that PP4 is required to synchronize with.

Response: SEL Satellite-Synchronized Clock is used for synchrophasor, relay event correlation, and other high-accuracy timing needs. Mainly, it is used by SEL protective relays. SCADA at

PP2A, PP3, PP2 has control on SEL relays. PP4 switch gear should be integrated and compiled with existing situation at PP2A and PP3 switch gear.

138. Inquiry: (Reference: EP701; Panel NC2) Panel NC2 appears on the single line diagram on EP701 but there is no panel schedule for NC2. Please provide the panel schedule and mounting location for NC2 or indicate if it should be removed from the scope.

Response: See amendment detail below. Drawing EP701 is updated.

139. Inquiry: What version of EMCP is on the existing 3516B Caterpillar units?

Response: EMCP 4.2 - Use of this data requires review of the solicitation in its entirety in order to comply fully with the solicitation requirements.

140. Inquiry: What generator controls are currently utilized for paralleling generators on the existing system?

Response: WOODWARD EasyGen 3000 - Use of this data requires review of the solicitation in its entirety in order to comply fully with the solicitation requirements.

141. Inquiry: What human machine interface software is currently used for the SCADA system?

Response: ADVANTECH co., software is Windows 10 Pro for OEM Software - Use of this data requires review of the solicitation in its entirety in order to comply fully with the solicitation requirements.

142. Inquiry: What brand of programmable logic controls are currently used for the SCADA system?

Response: Allen Bradley Compact Logix PLC - Use of this data requires review of the solicitation in its entirety in order to comply fully with the solicitation requirements.

143. Inquiry: What brand of trending software is currently used for the SCADA system?

Response: Kepserver - Use of this data requires review of the solicitation in its entirety in order to

144. Inquiry: What control systems platforms are currently used in the existing power plant PP3?

Response: Woodward EasyGen 3000, ADVANTECH - Use of this data requires review of the solicitation in its entirety in order to comply fully with the solicitation requirements.

145. Inquiry: What visualization software is currently used in power plant PP3?

Response: ADVANTECH co., software is Windows 10 Pro for OEM Software - Use of this data requires review of the solicitation in its entirety in order to comply fully with the solicitation requirements.

146. Inquiry: What is the existing networking equipment used in the existing power plant PP3?

Response: DELL Desktop, Corning LANscape Solutions Box, Fiber optic Comms cables - Use of this data requires review of the solicitation in its entirety in order to comply fully with the solicitation requirements.

147. Inquiry: What are the existing makes and models of the existing gen sets and genset controllers in service at PP3?

Response: Gens 1-2 Make and Model: Caterpillar 3516B

Genset Controller: EMCP 4.2 Gens 3-4 Make and Model: Caterpillar C175-16

Genset Controller: EMCP 4.3 Gens 5-12 Make and Model: Cummins QSK60-G4

Genset Controller: PCC3201 Use of this data requires review of the solicitation in its entirety in order to

148. Inquiry: (Reference: 19; 26 32 15; 1.9.c.1) Specification section 26 32 15: Please confirm the required maximum ambient operating capability of the diesel generators as this will impact the nameplate rating of the generator sets and the cooling systems provided. 1.9.c.1 indicates and

2.1.1 Engine-Generator Parameter Schedule max summer indoor temperature (prior to engine-generator operation) is listed as 43 degrees C, which does not account for operating condition temperatures. Spec section 26 36 23, Automatic Transfer Switches, paragraph 1.7, b indicates that a max operating ambient temperature of 50 degrees C is required. Please confirm the ambient operating capability is required at full nameplate ratings.

Response: Confirmed. Ambient operating capability of 50 Celsius is required at full nameplate ratings.

149. Inquiry: (Reference: ATCH H; Sheet GI002) Interiors sheet 101 indicates the Gound Floor Furnishings and Equipment Footprint plan - Partial A. There is no mention of Partial B. Is there FF&E requirments for Partial B? Is so provide Partial B.

Response: FF&E for area B of the building is limited and is shown on sheet IF101 in detail A4, B4 and C4. See General Note 1 on sheet IF101.

151. Inquiry: (Reference: ATCH H: Sheet MP405A) There are 3 locations where the AHU ductwork penetrates the 3 hour rated walls at gridlines B&C. Please provide a detail showing what is expected for these fire rated wall penetrations.

Response: The wall along Column Line C where the ducts penetrate it is an exterior, non-rated wall. Detail C4 on sheet AE503 shows a UL fire-resistance rated ceiling assembly in the Day Tank Rooms along Column Line B. The fire rating of the wall along Column Line B extends up to that rated ceiling assembly. The wall above the rated ceiling assembly is not considered 3-hour rated, and therefore, the ductwork and its penetration through does not require fire-rated details.

152. Inquiry: (Reference: EW602) Please confirm the switchgear tie breakers operate on an open transition auto throw over mechanism where only one of the mains shall be open before closing the N.O. tie CB-L1-T1 on the bus. Provide SOO if possible.

Response: Breakers should be operated manually. Provide interlock to prevent closing of tie breaker with Normal Open (N.O.) designation while both main breakers are simultaneously closed.

153. Inquiry: (Reference: EW602) Please confirm if the SCADA system is required to control any of the load center LVS-PP4-L1A/B breakers.

Response: SCADA control is not required for the load center LVS-PP4-L1A/B.

154. Inquiry: In the prevous Q&As it was noted that site demolition for P-332 would be put into CLIN 1B since it was OUTSIDE of the facility 1.5 meterline. Is this 1.5 meterline off the face of the building?

Response: Confirmed.

155. Inquiry: (Reference: 25 10 11.1.1) Contractor requests documentation of existing SCADA and controls system sufficient to quantify material and integration effort outlined in the general requirements of the Div 25 specification. This should include Operations manuals containing current sequence of operations, Network Diagrams, Controls System Schematics, List of user interface software platforms .

Response: See previous PPI responses and propose in accordance with the solicitation.

156. Inquiry: (Reference: 26 32 15.00; 2.8.4) The required generator coolant expansion tanks and associated pressure control and active vent lines are not shown on drawing MP711, MP60X Schedules, or floor MP40X floor plans. At a minimum, please show expansion tanks on the P&ID drawings along with pressure control lines and active vent collection headers. Expansion tanks can be mounted on the radiator package per 26 32 15.00 2.8.4, however, elevated and sloped pressure equalization lines are typically required between the expansion tanks and a suitable location near the coolant pump inlets. Controlling pressure at the radiators headers is not advisable for remote radiators. A second elevated and sloped active vent collection line must be provided between the expansion tank and powerframe. If separate LT and HT expansion tanks are used, this could result in the addition of four elevated 50mm lines running from each genset to the remote radiator.

Active vent lines collect flow from various high points on the genset powerframe with small diameter tubing and throttling valves to avoid equipment failures, startup problems, and cooling performance problems caused by trapped air pockets.

Response: See PPI #131. The expansion tanks for the radiators, as well as the air vents will be provided by the radiator manufacturer as stated in the radiator schedule on MP603. This is a design that is delegated to the radiator manufacturer and is provided with the radiator package.

157. Inquiry: (Reference: 26 32 15.00; 2.6.4) MP601 Requires single-wall UL 142 Fuel Oil Day Tanks. UL 142 tanks are required to have emergency vents that are not shown on drawing MP701.

Can the emergency vents be fixed to the tanks, or is a separate line required to direct the emergency vents outside the building as required by NFPA 30? A DN150 lines size would be typical for a day-tank e-vent application. UL 2085 (fire-insulated) tanks can be used in some instances to avoid the need for externally routing e-vents.

Response: See amendment detail below. The required emergency vent is changed to reflect the added DN150 vent pipe up through the roof. The rupture disk with bolted access door on the day tank and the vent pipe will terminate with goose neck fitting minimum of 460mm above the roof line with a bird screen. The rupture disk will be designed for 34 kpa to relieve pressure in the day tank. The primary vent will also be terminated with a gooseneck fitting with a birdscreen.

158. Inquiry: (Reference: EW604, EW605) Please confirm MCCs MCC-PP4-3, MCC-PP4-5, and MCC-PP4-6 are not required in the P332 project as they are only associated with the Gensets 1 thorugh 5 which are part of the P334 project.

Response: Propose in accordance with the solicitation.

159. Inquiry: (Reference: EW602) Since the unit substation that includes TR-PP4-01A and LVS-PP4- L1A is asscociated with Gensets 1 through 5, can these items be removed from the project 332 Price Schedule Line Items 1 through 4 and only be carried in project 334 Price Schedule line items?

160. Inquiry: Can you confirm if the neutral system of the LV network provides a neutral conductor independent of the earthing conductor or merged? (according to European standard : TN-C or TN- S or TN-CS?)

Response: The neutral of the transformers supplying the LV network should be bonded to the grounding grid.

161. Inquiry: (Reference: 275-279; Attachment H; EW620-627) please clarify functions 86F/86G/86I not present in the legend ?

Response: The function of the 86 device is lockout relay. The variations are the following:

86F: Feeder Breaker Lockout Relay 86G: Generator Breaker Lockout Relay 86T: Tie Breaker Lockout Relay

162. Inquiry: Is there existing an Bill Off Material for electrical equipment?

163. Inquiry: (Reference: 2-3; 26 08 00; 3.1) A section seems missing in the division 26 : Section 26 11 14.00 10 Main Electric Supply Station and Substation ? Can you provide it?

Response: See amendment detail below.

164. Inquiry: (Reference: EW204) Please provide elevation drawing similar to EW204 for MCC-PP4- 01 and MCC-PP4-02

Response: Elevation drawing should be provided by equipment manufacturer.

165. Inquiry: (Reference: CD101 and CD102; General Note 5) Please clarify the generator phasing removal requirements. The note mentions that the three southwest generators are to be removed first and the northeast three generators will be removed following completion of the P-332/P-334 power plant. However, there are 14 existing generators shown to be removed. Using the generator numbers shown on the drawings, please clarify when each of the 14 generators can be removed.

Response: See PPI #80 response, Amendment 0005.

166. Inquiry: (Reference: RFP Page 9 of 53) In paragraph 3.2.1 (a) Non-Price Factors, Solicitation Submission Requirements say 12-point font, Times New Roman. However, Attachment C:

Construction Experience Project Data Sheet provided with the RFP, is formatted in 10 pt font, Times New Roman. Please confirm it is acceptable to maintain 10 point font, Times New Roman for the Attachment C: Construction Experience Project Data Sheets.

Response: Confirmed.

3. Specification Revision

SECTION 26 08 00 APPARATUS INSPECTION AND TESTING

3.1 ACCEPTANCE TESTS AND INSPECTIONS

In 3.1.e., delete “Section 26 11 14.00 10 MAIN ELECTRIC SUPPLY STATION AND SUBSTATION”

4. Drawing Revisions

DOCUMENT 00 01 15 LIST OF DRAWINGS

1.2 CONTRACT DRAWINGS

NAVFAC DWG NO. Title 14124511 MP303 - MECHANICAL SECTIONS, Revised September 29, 2023

14124517 MP403A - MECHANICAL FLOOR PLAN - NORTH AT 3048MM AFF - SCR OPTION

14124518 MP403B - MECHANICAL FLOOR PLAN - NORTH AT 3048MM AFF - EGR OPTION

14124519 MP404A - MECHANICAL FLOOR PLAN - SOUTH AT 3048MM AFF - SCR OPTION

14124520 MP404B - MECHANICAL FLOOR PLAN - SOUTH AT 3048MM AFF - EGR OPTION

14124521 MP405A - MECHANICAL LOW ROOF PLAN - NORTH - SCR OPTION

14124522 MP405B - MECHANICAL LOW ROOF PLAN - NORTH - EGR OPTION

14124523 MP406A - MECHANICAL LOW ROOF PLAN - SOUTH - SCR OPTION

14124524 MP406B - MECHANICAL LOW ROOF PLAN - SOUTH - EGR OPTION

14124525 MP407 - MECHANICAL ENGINE HALL HIGH ROOF PLAN - NORTH

14124526 MP408 - MECHANICAL ENGINE HALL HIGH ROOF PLAN - SOUTH

14124527 MP409 - MECHANICAL ENLARGED PLANS

14124530 MP412 - MECHANICAL ENLARGED PLANS

14124531 MP501 - MECHANICAL DETAILS

14124546 MP701 - FUEL SYSTEM P&ID - NORTH

14124547 MP702 - FUEL SYSTEM P&ID - SOUTH

These revised drawings accompany this amendment.

NAVFAC DWG NO. 14124454 (AE105) ROOF PLAN

In Roof Plan, add Tank Emergency Vents. In Keynote Schedule, add Keynote 65 “EMERGENCY ROOF VENT.

SEE MECHANICAL”.

NAVFAC DWG NO. 141124511 (MP303) MECHANICAL SECTIONS

The revised section added a DN150 emergency vent to roof from Day tanks FOT-01 through FOT-05. Also Overflow tank FOOT-01 added a DN150 emergency vent to roof. Overflow tank FOOT-01 added secondary vent tied to the emergency vent. Added a General Note that states “The section cut A1 applies to both the North and South side of the plant and are mirror images of this section cut. Refer to floor plans for specific information.”

NAVFAC DWG NO. 141124517 (MP403A) MECHANICAL FLOOR PLAN – NORTH AT 3048MM AFF-

SCR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-01 through FOT-05 and overflow tank FOOT-01 to roof. Overflow tank FOOT-01 added secondary vent tied to the emergency vent.

NAVFAC DWG NO. 141124518 (MP403B) MECHANICAL FLOOR PLAN – NORTH AT 3048MM AFF-

EGR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-01 through FOT-05 and overflow tank FOOT-01 to roof. Overflow tank FOOT-01 added secondary vent tied to the emergency vent.

NAVFAC DWG NO. 141124519 (MP404A) MECHANICAL FLOOR PLAN – SOUTH AT 3048MM AFF-

SCR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-06 through FOT-10 and overflow tank FOOT-02 to roof. Overflow tank FOOT-02 added secondary vent tied to the emergency vent.

NAVFAC DWG NO. 141124520 (MP404B) MECHANICAL FLOOR PLAN – SOUTH AT 3048MM AFF-

EGR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-06 through FOT-10 and overflow tank FOOT-02 to roof. Overflow tank FOOT-02 added secondary vent tied to the emergency vent.

NAVFAC DWG NO. 141124521 (MP405A) LOW ROOF PLAN – NORTH – SCR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-01 through FOT-05 and overflow tank FOOT-01.

NAVFAC DWG NO. 141124522 (MP405B) LOW ROOF PLAN – NORTH – EGR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-01 through FOT-05 and overflow tank FOOT-01.

NAVFAC DWG NO. 141124523 (MP406A) LOW ROOF PLAN – SOUTH – SCR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-06 through FOT-10 and overflow tank FOOT-02.

NAVFAC DWG NO. 141124524 (MP406B) LOW ROOF PLAN – SOUTH – EGR OPTION

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-06 through FOT-10 and overflow tank FOOT-02.

NAVFAC DWG NO. 141124525 (MP407) ENGINE HALL ROOF PLAN - NORTH

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-01 through FOT-05 and overflow tank FOOT-01.

NAVFAC DWG NO. 141124526 (MP408) ENGINE HALL ROOF PLAN - SOUTH

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-06 through FOT-10 and overflow tank FOOT-02.

NAVFAC DWG NO. 141124527 (MP409) C4-ENLARGED DAY TANK ROOM PIPING PLAN

The revised floor plant added a DN150 emergency vent to roof from Day tanks FOT-01, FOT-02 and overflow tank

FOOT-01.

NAVFAC DWG NO. 14124528 (MP410) MECHANICAL ENLARGED PLANS

In drawing area 4-C, revise plan note in stating “VALVE AND TEE FOR COOLING WATER TREATMENT FOR

LT AND HT CIRCUIT (CONTRACTOR/OWNER TO PROVIDE GLYCOL INJECTION CART TO FILL AND

MAINTAIN COOLING WATER SYSTEM)” to “VALVE AND TEE FOR COOLING WATER TREATMENT

FOR LT AND HT CIRCUIT (CONTRACTOR TO PROVIDE PORTABLE GLYCOL INJECTION CART/SKID

TO FILL AND MAINTAIN COOLING WATER SYSTEM. PORTABLE CART/SKID SHALL BE SIZED TO

NEGOTIATE ENGINE HALL SPACE AND CONNECT TO GENERATORS.)

NAVFAC DWG NO. 141124531 (MP501) C1-SINGLE WALL FUEL OIL DAY TANK DETAIL

Added rupture disk assemble to the Emergency Vent. Shows DN150 vent pipe continued up through roof.

NAVFAC DWG NO. 14124544 (MP603) MECHANICAL SCHEDULES

In the CHILLER SCHEDULE, REFRIG. column, delete “R-134A”.

NAVFAC DWG NO. 141124546 (MP701) FUEL SYSTEM P&ID - NORTH

Added rupture disk assemble to the Emergency Vent. Shows DN150 vent pipe continued up through roof for FOT- 01 through FOT-05 and FOOT-01. Added to the P&ID the secondary vent tied to the emergency vent for the

FOOT-01.

NAVFAC DWG NO. 141124547 (MP702) FUEL SYSTEM P&ID - SOUTH

Added rupture disk assemble to the Emergency Vent. Shows DN150 vent pipe continued up through roof for FOT- 06 through FOT-10 and FOOT-02. Added to the P&ID the secondary vent tied to the emergency vent for the

FOOT-02.

NAVFAC DWG NO. 14124623 (EP701) BLDG POWER SINGLE LINE DIAGRAM – 400V SYSTEM

Delete panelboard ‘NC2’ and feeder. Circuit breaker in ‘NDP’ to become “bussed space”

5. Revise the Solicitation

CURRENT:

ALL SUBMITTALS MUST BE RECEIVED AT THE LOCATION SPECIFIED ABOVE PRIOR TO

2:00PM Norfolk, VA local time, Tuesday, 07 November 2023. LATE SUBMITTALS WILL NOT BE

CONSIDERED. LATE RESPONSES WILL BE HANDLED IN ACCORDANCE WITH FAR 52.215-1. THE

GOVERNMENT WILL NOT BE HELD RESPONSIBLE FOR DELAYS OF ANY COMMERCIAL

CARRIER.

REVISED TO:

ALL SUBMITTALS MUST BE RECEIVED AT THE LOCATION SPECIFIED ABOVE PRIOR TO

2:00PM Norfolk, VA local time, Tuesday, 28 November 2023. LATE SUBMITTALS WILL NOT BE

CONSIDERED. LATE RESPONSES WILL BE HANDLED IN ACCORDANCE WITH FAR 52.215-1. THE

GOVERNMENT WILL NOT BE HELD RESPONSIBLE FOR DELAYS OF ANY COMMERCIAL

CARRIER.

6. Provide attachment

• Revised Attachment E - Schedule B Price Proposal Form_11OCT2023

• Attachment R - P332 Elect Pwr Plnt FDA - MECH

SECTION 00 10 00 - SOLICITATION

The required response date/time has changed from 07-Nov-2023 02:00 PM to 28-Nov-2023 02:00 PM.

(End of Summary of Changes)