RFI_10.pdf

REQUEST FOR INFORMATION

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From: Date:

To: Contracting Officer

1. Solicitation Number:

W91364-19-B-7001

2. Location of Project:

Mansfield Ohio ANG

3. Information Requested: (Include Specification Section and/or Drawing Number and Page if inquiring about a discrepancy) 19-0018-0001

1. On Sht 132 of 247 (Vol 6 Drawings 8) it shows and API 12 B style of tank; and the written spec Section 33 16 15 (2.1.3 Design) states "The tank shall be of the style shown". Will a flat panel (RTP) bolted tank designed in accordance with AWWA D103-09 be allowed?

2. Reference the Sprinkler system and High Expansion Foam system protecting the Hangar Bay.

2a) Will the sprinkler system piping and heads in this area be exposed below the ceiling of the Hangar Bay or should the piping be installed above the ceiling and utilize pendent sprinklers installed into the Hangar Bay ceiling?

2b) Will the horizontal piping located in the Hangar Bay which supplies the High Expansion Foam Generators be required to be installed above the ceiling of the Hangar Bay?

3. Reference the specification section 213000. This section mentions both Metal Wall panels and Precast Wall Panels for the Pre-Fabricated Fire Pump Building. Which type of Wall Panel will be required for the Pre-Fabricated Fire Pump Building?

4. Reference the Fire Water Storage Tanks. Throughout the Bid Documents the storage capacity of the Fire Water Storage Tanks that is mentioned varies from 51,000, 55,000, 55,936 gallons. What is the correct usable gallons capacity for the Fire Water Storage Tanks ?

5. Will the Altitude valve for the Fire Water Storage Tanks be Hydraulic or Electric with Float?

Please provide model # of basis of design.

6. Specification section 331615 line 3.4 on page 9 indicates that Cathodic Projection shall be provided for the Fire Water Storage. Which type of Cathodic Protection System will be required for this project, Impressed or Sacrificial ?

7. In reference to the Fire Water Storage Tanks:

a) How many Tank Heaters will be required per tank?

b) How many Tank Heater Control panels will be required per tank?

8. Is there a basis of design that was used for the telecommunications cabling and connectivity material?

9. The fiber terminations are they fusion spliced or crimp connectors?

10. Is armored fiber allowed instead of using inner duct?

11. Who is providing the wireless access points? If the government is providing the wireless access points is the contractor installing them?

12. Is the intent that all cabling running in the cable tray on the plan east terminate in the existing comm closet and the cabling running in the cable tray on the plan west terminate in the data cabinet in the Hyro shop?

13. On page T-502 it says the paging adapter, amplifier and power supply are existing. What manufacture is the existing equipment? How many speakers are currently on the existing system? Will the existing system handle the 38 new speakers?

14. What is the manufacturer and catalog number of the existing ceiling system above the hanger floor?

Attachments: Date Response Required:

By: Title:

Requestor's FAX Number: Requestor's Telephone Number:

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To: Date:

Response:

See responses below.

This information is a clarification of the solicitation/contract and does not change the contract terms or conditions.

This information is a proposed change to the solicitation/contract. An amendment will be issued.

Contracting Officer:

1. On Sht 132 of 247 (Vol 6 Drawings 8) it shows and API 12 B style of tank; and the written spec Section 33 16 15 (2.1.3 Design) states "The tank shall be of the style shown". Will a flat panel (RTP) bolted tank designed in accordance with AWWA D103-09 be allowed?

Bolted steel tanks are acceptable.

2. Reference the Sprinkler system and High Expansion Foam system protecting the Hangar Bay.

2a) Will the sprinkler system piping and heads in this area be exposed below the ceiling of the Hangar Bay or should the piping be installed above the ceiling and utilize pendent sprinklers installed into the Hangar Bay ceiling?

2b) Will the horizontal piping located in the Hangar Bay which supplies the High Expansion Foam Generators be required to be installed above the ceiling of the Hangar Bay ?

2a) All piping to be above ceiling/in truss space as shown on sheet FX301. Keyed note 1 on drawings AC111 and AC112 indicates that ceiling system is to be removed for above ceiling work.

2b) All piping to be above ceiling. Piping and generators are to be seismically braced. See structural drawings for hanging details of HEF Generator.

3. Reference the specification section 213000. This section mentions both Metal Wall panels and Precast Wall Panels for the Pre-Fabricated Fire Pump Building. Which type of Wall Panel will be required for the Pre-Fabricated Fire Pump Building?

Metal Wall Panels.

4. Reference the Fire Water Storage Tanks. Throughout the Bid Documents the storage capacity of the Fire Water Storage Tanks that is mentioned varies from 51,000, 55,000, 55,936 gallons. What is the correct usable gallons capacity for the Fire Water Storage Tanks ?

The project will require 2 tanks each with 55,936 usable gallons.

5. Will the Altitude valve for the Fire Water Storage Tanks be Hydraulic or Electric with Float?Please provide model # of basis of design.

Provide mechanically activated float valve. Typically use Cla-Valve as basis of design. Means, methods and materials will be up to the contractor. Tanks levels will be monitored by Fire Alarm system. Coordinate final design with tank manufacturer.

6. Specification section 331615 line 3.4 on page 9 indicates that Cathodic Projection shall be provided for the Fire Water Storage. Which type of Cathodic Protection System will be required for this project, Impressed or Sacrificial?

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Cathodic protection is required.

7. In reference to the Fire Water Storage Tanks:

a) How many Tank Heaters will be required per tank?

b) How many Tank Heater Control panels will be required per tank?

Anticipate one heater and one control panel based on size of tanks. Contractor design will verify this concept.

8. Is there a basis of design that was used for the telecommunications cabling and connectivity material?

Refer to specification section 27 10 00 Building Telecommunications Cabling System document issued as part of detail design documentation for cabling and connectivity requirement information.

9. The fiber terminations are they fusion spliced or crimp connectors?

Refer to specification section 27 10 00 Building Telecommunications Cabling System document issued as part of detail design documentation for termination requirement information.

10. Is armored fiber allowed instead of using inner duct?

Refer to specification section 27 10 00 Building Telecommunications Cabling System document and detail design drawings issued as part of detail design documentation for requirement information.

11. Who is providing the wireless access points? If the government is providing the wireless access points is the contractor installing them?

Wireless access points are Owner furnished, contractor installed.

12. Is the intent that all cabling running in the cable tray on the plan east terminate in the existing comm closet and the cabling running in the cable tray on the plan west terminate in the data cabinet in the Hyro shop?

Yes.

13. On page T-502 it says the paging adapter, amplifier and power supply are existing. What manufacture is the existing equipment? How many speakers are currently on the existing system? Will the existing system handle the 38 new speakers?

1. Equipment manufacture information were unavailable at the time of detail design documentation issue. Coordinate with owner.

2. Approximately twenty-nine, refer to design documentation drawing TD110, and field verify.

3. Assume and field verify, existing amplifier meets or exceeds requirements referenced in specification section 27 51 23.10 Intercommunication System. Report discrepancies to Owner prior to the start of installation effort.

14. What is the manufacturer and catalog number of the existing ceiling system above the hanger floor?

Equipment manufacture, and model part number information were unavailable at the time of detail design documentation issue. Note: Ceiling mounted devises shown on drawing TD110, are heat sensors associated with the fire alarm system.