RFIs_and_Responses_GLEN_19-1001_17_Jul_17.pdf

Repair by Replace HVAC, B700 GLEN 19-1001 Requests for Information (RFIs)

RFP FA2550-17-R-1021

RFIs and Responses

1. Is it still bidding on 07/17/2017 at 12:00 PM MT?

Government Response: Yes.

2. Did the pre-bid meeting scheduled on 06/28/2017 at 10:00 AM MT happen?

Government Response: Yes. A site visit was conducted on 28 June 2017.

3. Is there an addendum issued?

Government Response: No

4. Can I request a copy of the pre bid sign in sheet?

Government Response: The sign in sheet will not be released in its entirety. The site visit attendees list was posted to FBO.gov.

5. SOW dated 8 May 2017, paragraph 2.0 states SAFB is seeking proposals to repair by replace the two chillers and associated condensing units, and the rooftop air conditioner at building 700.

ROOFTOP AIR CONDITIONER? NO MENTION OF THIS UNIT ON PROJECT drawings.

Please provide information on this.

Government Response: Yes, there is a rooftop HVAC unit to be replaced. It is correct that it is included in the SOW but not in the contract drawing. The government offered site visit attendees the opportunity to go on the roof to survey the rooftop unit. Only one contractor went up on the roof and surveyed the unit.

6. Specification section 23 64 10 2.7.1.1, refers to a leak detection system. There is no information on this system on the project drawings and there is no sequence of operations for the new chillers. Please clarify if this system is required as part of the SOW. If so, please provide a detailed sequence of operations and electrical and control schematics.

Government Response: A leak detection system shall be provided in accordance with the specifications.

The sequence of operations for the new chillers should be same as the existing chillers. The sequence of operations is a part of the HSQ control system. I recommend the contractor consult with the base HSQ control system personnel to get the needed information.

7. Specification section 23 64 10 2.7.4.1, refers to a refrigerant recovery/recycle system. There is no information on this system on the project drawings and there is no sequence of operations provided for the new chillers. Please clarify if this system is required as part of the SOW. If so, please provide a detailed sequence of operations and electrical and control schematics.

Government Response: Yes, R-22 refrigerant shall be recovered and recycled. Refer to the SOW Para. 5.2.2.

8. What area(s) will be given to the contractor for a lay down yard?

Government Response: There is no proposed contractor laydown yard. See attached Drawings G-100 and DM-101

9. What is the daily site access procedure for contract employees? What is the security badging procedure for contractor employees?

Government Response: Refer to SOW Appendix 3 and 4.

10. Will the contractor have to provide their own security escorts? If so, please advise what companies are approved by the government to provide security escorts at the facility.

Government Response: No, the contractor has to find a security escort company.

11. The current wage decision for this project is Building CO32 dated 6‐2‐2017 but there has been an update which is dated 6‐9‐2017. Will there be an amendment to revise the wage decision?

Government Response: Yes, the latest Davis Bacon Wage Determination will be included in this amendment.

12. Are we restricted to using York units only?

Government Response: No. Any chiller meeting the contract specifications shall be provided.

13. Does the base have temporary chiller that we can use?

Government Response: No, because the building requires redundant cooling capacity at all times, the removal of the chillers should be staged and temporary cooling should be provided.

The Mechanical Room has insufficient space to locate temporary chillers inside the building.

14. Does the base have a list of approved escorts of contractors that have worked on base already?

Government Response: No, the contractor has to find a security escort company.

15. Please confirm the temporary chiller shall be ran on diesel generators that were supplied by the general contractor?

Government Response: Yes, power for the temporary chillers should be provided from a portable generator provided by the general contractor rather than from the building.

16. Please confirm that there's not a temporary power available for the temporary chiller?

Government Response: No building power shall be used for the temporary chillers. Power for the temporary chillers should be provided from a portable generator provided by the contractor rather than from the building.

17. What are the requirements for the fuel containment on the temporary generator?

Government Response: Refer the contract specification 01 57 20.00 10 Para 2.2.5 Generators and Para. 2.7.5 Fuel and Lubricants. Also see the attached POL/Storage Tank Management.

18. Will the base provide fuel for the temporary generator?

Government Response: No, the contractor is responsible for fuel for the temporary generator.

19. Will the base provide escorts for the contractor and subs or this be required to be covered by the GC?

Government Response: No, the contractor is responsible to provid their own security escorts.

20. Will the contractor be required to have a person on site at all times while the temporary generator is in use to ensure that it does not shut down?

Government Response: Yes.

21. Which Buy American act does this project fall under?

Government Response: See clauses 52.225-10, 52.225-2, 52.225-4, and 52.225-9 included in the SF 1442 for Buy American applicability.

22. Please provide photos of the following: mechanical yard, existing chiller, existing MCC, Existing AHU, each unit, each name plate of each unit, all electrical boxes, nameplates of all electrical boxes, and control valves, and control panels.

Government Response: Taking photos in this facility is not allowed. The Government will not provide this information. These information should have been acquired during the site survey or from the contract documents.

23. Is a contractor required to upgrade pipe supports to meet current size requirements? Or shall the contractor reuse existing?

Government Response: Refer to the SOW Para. 5.2.3.b.

24. Who does water treatment currently on the contract? If contractors required to provide water treatment please supply the name of the current company that does this for the base?

Government Response: There is no water treatment requirement in the contract documents.

25. Does the system currently have glycol in it?

Government Response: Yes, Contractor shall recover any glycol removed from the chilled water system and return it back to the chilled water system prior to chiller startup. Any glycol makeup water shall be provided by the government.

26. What are the piping insulation requirements? What extent do we have to replace?

Government Response: Refer to the contract documents. If there is a need for clarification, please submit an RFI. All new chilled water pipes, valves, fittings, refrigerant suction lines and existing refrigerant liquid lines as shown on the SOW Para. 5.2.3 and Drawing M-101.

27. Please provide existing control system as-builds?

Government Response: Recommend to consult with the base HSQ personnel. There shall be no interruption to the building control system. Coordinate with Base Civil Engineering (BCE) and the PM (Ted Yu 719-567-4034) to contact the base HSQ personnel.

28. What are the TAB requirements on this project?

Government Response: Refer to the contract drawings, specifications and scope of work.

29. On sheet M101 note 1.: Please clarify what specialize in their requirements are? Are these required to be covered in a contractor’s proposal? Does a contractor need to recertify the entire building after completion of penetrations? Does the base have a subcontractor that performs this for them routinely?

Government Response: Refer to Drawing M-201.

Any new penetrations of the HEMP boundary will need to be specialized construction and require certification.

Any new electrical penetrations of the HEMP boundary will need to be tested per HEMP testing specifications.

The Contractor shall be responsible for the HEMP Testing such that HEMP Recertification can take place. It will be the responsibility of the Contractor to subcontract a third party specialized in HEMP Shielding to provide these services.

30. Please provide crane pick locations for each project.

Government Response: The pick location shall be determined by the contractor. The contractor will submit a request for approval of locating crane at a proposed location to the CO and 50

CES.

32. Please clarify the HEMP Barriers contractor qualifications.

Government Response: Refer to Drawing M-201.

Any new penetrations of the HEMP boundary will need to be specialized construction and require certification.

Any new electrical penetrations of the HEMP boundary will need to be tested per HEMP testing specifications.

The Contractor shall be responsible for the HEMP Testing such that HEMP Recertification can take place. It will be the responsibility of the Contractor to subcontract the third party specialized in HEMP Shielding to provide these services.

33. Does the Government have a hazardous materials survey for the areas that will be disturbed during construction?

Government Response: There is no hazardous materials in the project areas that will be disturbed during construction.

34a. Are there any hazardous materials or environmental conditions that the contractor needs to be made aware of prior to estimating this project?

Government Response: Two existing chillers and associated condensing units to be replaced containing R-22 refrigerant (a Class II Ozone Depleting Substance), and a roof top air conditioner also containing R-22 refrigerant. R-22 refrigerant shall be removed and disposed of according to the environment laws.

35. Are there any site work restrictions that the contractor needs to be made aware of prior to bidding?

Government Response: Standard work hours under this contract are Monday through Friday, 7:00 a.m. to 5:00 p.m. Mountain Standard Time (MST). Building 700 is a controlled and restricted building in the SAFB Controlled and Restricted Area. The contractor is required to comply with all SAFB security requirements, to wear SAFB issued badges while on SAFB, and to provide its own security escorts for their workers.

The building has to be maintained at temperature set-points. One chiller can maintain building temperatures, but a second chiller must be available at all times for redundancy. The Contractor shall provide temporary chillers for continued chilled water service to the facility.

All electrical and equipment outages must be scheduled through the BCE personnel, PM, and the “Outage Board” at least 15 working days in advance.

36. Are there any phasing requirements that the contractor needs to be made-aware of prior to bidding?

Government Response: The contractor shall phase the work such that only one chiller and condensing unit is down at a time. To accommodate mission requirements of having a backup chiller at all times for redundancy, the contractor shall provide a temporary chiller for continued chilled water service to the facility.