Atch_11_Site_Visit_Questions_Hanger_61.pdf

FA3016-17-R-0036

Attachment 11

FA3016-17-R-0036 Hanger 61 Remove Insulation

22 June 2017 Site Visit Q&A

1. Can we use the specific experience of a subcontractor that has experience removing the chromium contaminated insulation from a Hangar as one of the past performance projects?

A. NO – unless it’s a certified joint venture by the SBA

2. Are there required bid bond forms per 52.228.1 (Page 17)?

A. Bond Forms are for the contractor to provide

3. Is Performance and Payment bonds required for this project?

A. See Solicitation Section 12 A

4. What are the insurance requirements for this project?

A. See Solicitation – Clause 52.228-5 Insurance – Work on a Government Installation

5. Is there a specific wage rate to be used for this Hazardous Materials abatement not identified in the provided A3016-17-R-036 attachment 2-wage rates?

A. NO

6. Can alternate methods of removal be used to remove the insulation?

A. Answer: Yes,

7. If alternate methods are allowed, can the contractor utilize dry ice blasting to remove insulation? Hand tool method will still be utilized as a first step, but the idea is to follow with dry ice blasting to remove everything. Dry ice blasting creates no waste other than the existing material that is being removed.

A. Answer: If proposing alternate methods please include all relevant documentation with proposal for technical review of proposal submisson prior to award or submit to the government after award for review and approval. Please note alternate methods is subject to government review and may not be accepted for this project.

8. Has the insulation been tested for presence of asbestos? Will there be any asbestos present in the scope of work?

A. Answer: All areas have been tested for Asbestos Containing materials and all results are NAD, No Asbestos Detected. Documents will be send to contracting for your review.

9. An asbestos survey was not provided with the bid documentation and is federally required by

NESHAPs prior to any renovation activities. Toxic Characteristic Leaching Procedure (TCLP) sample results was provided, however there is no documentation on any asbestos sampling. Was there asbestos sampling conducted on the fireproofing material that is being removed? If asbestos sampling was conducted please provide lab documentation.

A. Answer: All areas have been tested for Asbestos Containing materials and all results are NAD, No Asbestos Detected. Documents will be send to contracting for your review.

FA3016-17-R-0036

Attachment 11

10. As stated on page 4 of the statement of work, “Contractor shall complete three wipe tests per NIOSH guidelines 7402 ensuring that all insulation is removed and the hazard is no longer present.” NIOSH Method7402 is a TEM asbestos air sampling method which does not report chromium content. EPA method 6010B is the preferred analytical method when wipe sampling for chromium. EPA method 6010B has a detection limit of 0.5 µg.

Will EPA method 6010B be used for clearance instead of NIOSH guidelines.

7402?

A. Answer: 6010B is the proper testing method for chromium.

11. According to an email previously sent from Jon Sanders, “wipe samples should return None Detect.” EPA method 6010B has a detection limit of 0.5 µg. Using this sampling method, it may not be reasonable to achieve none detect results due to the extremely low detection limit. Is none detect a requirement for clearance, or is the Department of the Navy’s clearance criteria (Chromium (III) 210,000 µg/100 cm2) an acceptable limit?

A. Answer: Please follow EPA method 6010B

12. It was mentioned during the bid walk that a similar job was conducted in another hangar on base where a clearance was achieved with none detect readings. Which analytical method was used on the previous job to achieve none detect clearance samples?

A. Answer: EPA SW846, Method 6010C

13. Page 4 of the scope of work mentions that work hours are from “7:30 a.m. to 4:30 p.m.” It was mentioned during the bid walk that hangar workers operate at different hours. Will access be provided during hours when Hangar 61 workers are not present?

A. Answer: Access will be provided from the facility manager from “7:30 a.m. to 4:30 p.m. But will accommodate if needed for access. Request must be submitted to contracting.

14. While removing fire proofing in Phase II and the final phase, the hangar doors may be rendered inoperative due to scaffolding blocking the pockets that the doors fold into. To what extent will the hangar doors be in operation during the time of abatement? Is the government prepared to have the hangar doors inaccessible while scaffolding in place?

A. Answer: Per SOW 3.1.4. The remainder of the remediation of this building may be in 1 or 2 phases. During this time, the first and second phase areas shall be returned to the 12 FTW for use. The Contractor shall have a maximum of 75 consecutive days to complete the work in this phase. All remediation adjacent to the booth and its associated equipment, MUST BE KEPT WATER FREE.

*Doors shall remain accessible to the customer during phase 1 and 3, it is possible to modify the extent of phase 2 to include all of the door assembly.