Amendment 0003 Questions and Answers 5-26-20.docx

QUESTIONS AND ANSWERS – 36C24220B0036 – AMENDMENT 0003 (ANSWERS IN RED)

1. Also, with response item Generator enclosure please let me know “Factory stand-in enclosure similar to the existing generator for building 12/13” will be acceptable instead of “Walk-In enclosure”.

Response to comment No. 1: Refer to specification 263213.2.16.A-E.

1. Please provide the size & number conduits & type of wires/cable to be provided for each building their routing so as to account any road crossing/cutting of concrete/pavement (as the lengths are approximately 1350feet & 750 feet) in the bid.

Response to comment No. 2: Disregard the below portions of the previous response to Question #3a in Amendment 0001…

The contractor shall route rigid conduit with Glass Fiber Reinforced Plastic (FRP) within concrete cell-duct system underground from fuel oil tank to Boiler Plant (Approximately 450 yards). The contractor shall include ground penetrating radar in bid. See specification 231000/2.4/C/1-3 for additional information. The conduit shall be designated for monitoring and no other disciplines shall be permitted within conduit system.

The contractor shall route rigid conduit with Glass Fiber Reinforced Plastic (FRP) within concrete cell-duct system underground from fuel oil tank to Building No. 3 (Approximately 250 yards). The contractor shall include ground penetrating radar in bid. See specification 231000/2.4/C/1-3 for additional information. The conduit shall be designated for monitoring and no other disciplines shall be permitted within conduit system.

The conduits installed for both the generator and the fuel tank monitoring systems shall be 1-inch (Each) rigid steel installed within concrete cell-duct system to Building 13. The conduits for the generator and the fuel tank monitoring systems shall be routed parallel in concrete cell-duct. Refer to drawing SK1 for additional information. The type and quantity of wire will be dependent on the manufacturer.

1. Also specification section 231000 (Enclosed in the amendment) item 1 indicates tank capacity as 5,000 gallons and following (Enclosed in the amendment) item 1 indicate tank capacity as 5,000 gallons and following items to be provided.

a. Fuel Oil tank fluid level monitoring and alarm systems.

b. Leak detection system for tanks and underground piping.

c. Fuel Oil quality maintenance (Water and particle removal).

d. Please clarify, if these items are to provided, we need more details to include the cost for these equipment in the bid:

Response to comment 3: Specification 23100 was amended from 5,000 gallon to 1,000 gallon, refer to RFI No. 002 for additional information.

Response to 3a: Refer to specification 231000.

Response to 3b: Refer to specification 231000.

Response to 3c: Refer to specification 231000.

Response to 3d: Refer to specification 231000.

1. Specification 263213 is missing paragraphs 2.15 Remote Annunciator Panel and 2.16 Sound-Attenuated Enclosure.

Response to comment 4: Specification 263213 was amended and is included in this document.

1. 23 10 00 calls for a fuel monitoring and leak detection system. I assume the FRP run from the new tank will terminate at a new monitoring system furnished by us? What about the second FRP run? Does an additional monitoring system need to be provided.

Response to comment No. 5: Disregard the below portions of the previous responses to Question #3a in amendment 001.

The contractor shall route rigid conduit with Glass Fiber Reinforced Plastic (FRP) within concrete cell-duct system underground from fuel oil tank to Boiler Plant (Approximately 450 yards). The contractor shall include ground penetrating radar in bid. See specification 231000/2.4/C/1-3 for additional information. The conduit shall be designated for monitoring and no other disciplines shall be permitted within conduit system.

The contractor shall route rigid conduit with Glass Fiber Reinforced Plastic (FRP) within concrete cell-duct system underground from fuel oil tank to Building No. 3 (Approximately 250 yards). The contractor shall include ground penetrating radar in bid. See specification 231000/2.4/C/1-3 for additional information. The conduit shall be designated for monitoring and no other disciplines shall be permitted within conduit system.

The conduit system for both the fuel tank monitoring system and the generator will both terminate in Building No. 13 (Two 1-inch rigid steel conduits run parallel to one another in concrete cell-duct system). Refer to drawing SK1 for additional information. The fuel monitoring system annunciator panel to be installed in Building 13 as shown in drawing SK-1 shall include all alarm and monitoring outputs from the following systems… 1.) the Leak Detection System, 2.) the Tank Fluid Level Monitoring System, 3.) and the Fuel Oil Quality Maintenance Systems.

The type and quantity of wire will be dependent on the systems’ manufacturer

1. The Q&A response to 3A indicates fuel piping should be double wall. Pictures show the existing piping is insulated. The specification 23 10 00, does not list double walled fuel piping or insulation. It calls for single wall carbon steel pipe, painted. Should double be used? If so, is the double wall pipe another monitoring point for the leak detection system?

Response to comment No. 6: The specification includes the requirements for both above and underground fuel piping.

Above ground piping shall be single wall, Schedule 40 carbon steel, painted per Paragraph 2.4.B.1 of Specification 23 10 00 and shall be insulated with 2” thick fiberglass pipe insulation in a stainless steel jacket.

Underground piping shall also be single wall, Schedule 40 carbon steel per Paragraph 2.4.B.1 of Specification 23 10 00 but shall have secondary containment as described in Paragraph 2.8 SECONDARY CONTAINMENT FOR UNDERGROUND FUEL PIPING SYSTEMS

6. 23 10 00 also calls for a fuel oil quality maintenance system. we assume we would furnish this and install on the pad adjacent to the new fuel tank. It will require electrical power. Again, per the specification, we think the connecting piping to the tank should be painted carbon steel, but we want to make sure it should not be double wall and/or insulated.

Response to comment No. 07: Fuel oil quality maintenance panel shall be mounted on pad immediately adjacent to fuel tank. Please provide emergency equipment branch 120-volt power in ¾-inch rigid steel conduit with 2#12 AWG conductors and 1#12 ground to nearest 120-volt emergency equipment branch source, conduit system shall be encased in concrete cell-duct system, mount within main trench entering building No. 13, refer to drawing 13.ES101 for additional information.

Provide 1 ¼-inch rigid steel conduit with 2#6 AWG conductors with 1#10 ground mounted in concrete cell-duct system to the emergency generator panel mounted within the generator enclosure. Route in main concrete cell-duct system entering building No. 13, connect to 60 amp, 2-pole, circuit breaker within the emergency equipment branch panel. Refer to drawing ES101 for additional information.

7. In general, there is no specification for double wall pipe in 23 10 00.

Response to comment No. 008: The specification includes the requirements for both above and underground fuel piping.

Above ground piping shall be single wall, Schedule 40 carbon steel, painted per Paragraph 2.4.B.1 of Specification 23 10 00 and shall be insulated with 2” thick fiberglass pipe insulation in a stainless steel jacket.

Underground piping shall also be single wall, Schedule 40 carbon steel per Paragraph 2.4.B.1 of Specification 23 10 00 but shall have secondary containment as described in Paragraph 2.8 SECONDARY CONTAINMENT FOR UNDERGROUND FUEL PIPING SYSTEMS

8. Please confirm if isolation bypass transfer switches are required. The schedule on drawing 13EP502 conflicts with the requirements in Spec 263623.

Response to comment No. 9: The automatic transfer switches shall be furnished with bypass transfer switches as indicated in specifications.

9. Please confirm if a new AUMS system is necessary or if the scope is limited to reconnecting to the existing. Drawings 13ED401 & 13EP401 refer to relocating & reusing the existing system, however Spec 261010 references an entirely new system.

Response to comment No. 10: Drawing 13.ED401 Keyed Note #17 directs contractor to disconnect, remove and relocate existing AUMS. Drawing 13.EP401 Keyed Note #6 directs contractor to reinstall existing AUMS. Drawing 13.EP401 Keyed Note #15 directs contractor to install new Schneider Power Logic system or (Approved Equal). Drawing 15.EP502 Keyed Note #15 directs contractor to provide Schneider Power Logic system (Or approved equal). Refer to specification 261000 for additional information.

10. Please advise if factory witness testing is required for any of the electrical equipment.

Response to comment No. 11: On site factory witness testing will be required for the following systems: Automatic transfer switches, emergency generator, and the fuel tank monitoring system. Refer to specifications 263623 (Automatic Transfer Switches) 263213 (Engine Generators) and 231000 (Facility Fuel Oil Systems).

11. Please advise if any of the switchboards/panelboards require SPD’s. The one-line diagrams & panel schedules do not show any, however Spec 264313 was included with the bid package.

Response to comment No. 12: No SPD’s are required, please disregard specification 264313.

12. Please advise if there are any electrical requirements associated with the new fuel oil scope described in the response to RFI #3 issued as part of Addendum #1.

Response to comment No. 13: Disregard the below portions of the previous responses to Question #3a in amendment 001.

The contractor shall route rigid conduit with Glass Fiber Reinforced Plastic (FRP) within concrete cell-duct system underground from fuel oil tank to Boiler Plant (Approximately 450 yards). The contractor shall include ground penetrating radar in bid. See specification 231000/2.4/C/1-3 for additional information. The conduit shall be designated for monitoring and no other disciplines shall be permitted within conduit system.

The contractor shall route rigid conduit with Glass Fiber Reinforced Plastic (FRP) within concrete cell-duct system underground from fuel oil tank to Building No. 3 (Approximately 250 yards). The contractor shall include ground penetrating radar in bid. See specification 231000/2.4/C/1-3 for additional information. The conduit shall be designated for monitoring and no other disciplines shall be permitted within conduit system.

The conduits installed for both the generator and the fuel tank monitoring systems shall be 1-inch (Each) rigid steel installed within concrete cell-duct system to Building 13. The conduits for the generator and the fuel tank monitoring systems shall be routed parallel in concrete cell-duct. Refer to drawing SK1 for additional information. The fuel monitoring system annunciator panel to be installed in Building 13 as shown in drawing SK-1 shall include all alarm and monitoring outputs from the following systems… 4.) the Leak Detection System, 5.) the Tank Fluid Level Monitoring System, 6.) and the Fuel Oil Quality Maintenance Systems.

The type and quantity of wire will be dependent on the systems’ manufacturer.

Fuel oil quality maintenance panel shall be mounted on pad immediately adjacent to fuel tank. Please provide emergency equipment branch 120-volt power in ¾-inch rigid steel conduit with 2#12 AWG conductors and 1#12 ground to nearest emergency equipment branch 120-volt source. Refer to drawing SK1 for fuel tank monitoring requirements.

13. Please provide dimensions of the archway into the courtyard for where the new generator, fuel tank & transformer is located. As there was no walk through permitted, we would like to confirm that the equipment, delivery vehicles & crane can enter the area.

Response to comment No. 14: The opening at the Head House into the courtyard for where the new generator, fuel tank and transformer are located is: 13’-5” (High) and 10’0” (Wide). See attached PDF.

14. Drawing 13.AD101 Building 13 Architectural Demolition Plan Ground Floor:

Note” N” under General demolition plan on above drawing indicate contractor to provide unit cost for material, equipment & supervision to firestop Forty (40) 4” round & 8” deep penetrations in existing CMU walls but the bid pricing sheet (page 7 of 46) has no such unit cost item. Please clarify.

RESPONSE: In accordance with Note N on Drawing 13.AD101 Building 13 Architectural Demolition Plan Ground Floor, the VA is requesting a unit cost price for labor, material, equipment & supervision to firestop Forty (40) 4” round & 8” deep penetrations in existing CMU walls. The intent of this request is to negotiate a reasonable line item allowance in the contract specifically for the firestopping of any unforeseen unsealed penetrations (or holes) in the CMU walls above the ceilings of the corridors of the Ground Floor. The walls above the ceiling will be inspected by the contractor and the VA COR once the contractor looks above the lay-in grid ceiling in the corridor to layout the work required to run new electrical feeders in that same corridor. If there are any unsealed penetrations (or holes) discovered and identified by the VA COR to be properly fire stopped, the contractor can be directed to do so while he is mobilized and has the required dust protection to perform the other required contract work above that ceiling (such as the installation of conduit for new electrical feeders). The contractor must include this unit cost to establish a reasonable allowance to perform each repair of an unsealed penetration.

Please see the attached updated bid pricing sheet which supersedes the previous version and shall be used to submit bid pricing.

Please provide an unit cost for labor, material, equipment & supervision to firestop Forty (40) 4” round & 8” deep penetrations in existing CMU walls $ _______________________ per penetration x 40 penetrations = $ ______________________

15. Division 26 Specification section 26 10 10 Advanced Utility metering system item 1.1.B & Keyed note 6 of drawing 13.EP401 Building 13 enlarged electrical Power Plan (Ground floor) New:

The above notes indicate “to co-ordinate with AUMS(Advanced Utility metering system) provider VENERGY group 845-389-6274 for exact requirement” but when we contacted the operator mentioned that this a New York state government (wrong number). Please provide us the correct telephone contact number for VENERGY to obtain exact requirement.

RESPONSE: Here is the contact information for the VENERGY reps.

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VHAMORANDERE

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Text Box

10'-0"

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13'-5"