210380 Prebid RFI_GOVT RESPONSE.pdf

DEPARTMENT OF THE AIR FORCE

HEADQUARTERS 72 AIR BASE WING (AFMC)

TINKER AIR FORCE BASE OKLAHOMA

14 March 25

MEMORANDUM FOR AFSC/PZIOC (ATTN: STEPHEN PALMER)

THROUGH: 72 ABW/CENM

FROM: 72 ABW/CEED

Tepa Companies

SUBJECT: Pre-Bid RFI Responses Project: WWYK210380, REPLACE DUCTWORK, B3001

Reference: Memo, 28 February and 04 March., Pre-Bid RFIs, WWYK210380, REPLACE

DUCTWORK, B3001

1. This office reviewed the referenced RFIs for the subject project and provided answers below. Please forward to the contractor(s) for their use in preparing proposals

(1) Request for information. In SOW paragraph 5.2.5 states Certified Air Balance.

A. Will this require an independent Testing Agency?

B. Will DALT be Required for New Ductwork?

Government Response: Refer to SOW para 5.2.5; TAB is required, DALT is not DALT is not required.

(2) Request for information. SOW paragraph 5.1.5 states demolish duct to second floor office space Between columns 52 & 53. Please Clarify this statement is to be columns 41 & 43 Government Response: COLUMNS 41 and 43.

(3) Request for information. SOW states No Fire Protection work. Please Clarify there are no sprinkler lines under existing duct at Fan Deck Location that could impact removal or installation of ductwork.

Government Response: There is no fire protection work required.

(4) Request for information. Will New Ductwork require Insulation?

Government Response: Yes. Provide 2” duct wrap fiberglass insulation.

(5) Request for information. Can we be provided with the CFM required for new air diffusers?

Government Response: Air flow rates are provided in the drawings sheet M-101.

(6) Request for information. SOW Paragraph 2.8 States the following: “An EM Survey indicates there are asbestos containing materials (ACM) concerns for the area(s) where work is to be performed. The following have been identified:

1) Areas where there are duct caulking still present

2) This caulking, where present, may contain asbestos This statement is ambiguous. It is not feasible pre-bid to go up, collect samples and incur the costs of testing suspicious materials within the work area. Has the Government actually performed any on-site testing for hazardous materials on any of the ductwork or other materials that are to be demolished? If so, can those test records please be provided.

Government Response: The ductwork caulking, where present, is asbestos containing.

Asbestos caulk is Cat I non-friable asbestos and unregulated if it is in good condition and doesn’t become friable during demolition/renovation.

Since Contractors are more likely to encounter this during inspection/demolition, contractors could consider this as an EXISTING CONDITION in their proposal.

(7) Request for information. SOW paragraph 2.8 states ACM was identified. During the site visit, we noticed areas that could be containing asbestos that are touching areas of work to be performed. Will these areas be abated prior to any work being performed?

A. Will documentation be provided for areas that are clear of any ACM?

B. Will documentation be provided for areas that are clear of any ACM?

Government Response: An Environmental Management Survey was completed.

Please refer to section 2.8 in the SOW for the findings of said survey.

(8) Request for information. Will the Government provide an Asbestos Inspection Report?

Government Response: An Environmental Management Survey was completed.

Please refer to section 2.8 in the SOW for the findings of said survey.

(9) Request for information. Will lane closure requests be required if there is work being performed in these areas?

Government Response: YES

(10) Request for information. Is there a schedule or neck size for air devices / grills or specified product?

Government Response: No. Provide submittal of air distribution devices that will meet performance standards of UFC 3-410-01 HVAC Systems.

(11) Request for information. Where is the storage/staging area going to be in relation to the building we are going to be working on Government Response: TO BE DETERMINED AFTER AWARD.

(12) Request for information. Where will contractor parking be located?

Government Response: TO BE DETERMINED AFTER AWARD

(13) Request for information. What type of lifts can be used in the facility? Do they need to have any type of protection such as padded rails, hydraulic diaper, etc?

Government Response: CONSTRUCTION LIFTS SUITABLE FOR INDOOR WORK.

(14) Request for information. Will they require proof of certification for operating the lifts?

(15) Request for information. Will a dumpster be provided or will we have to haul all the trash out on our own trucks?

Government Response: Contractor will be able to provide their own Dumpster in a Government approved Staging Area after Award.

(16) Request for information. Is it all the ductwork shown on the full drawing sheet A-514 or just the area shown in the smaller print that was sent with the same attachment as the pictures?

Government Response: The extent of the ductwork replacement is shown in the drawing set sheet M-101.

(17) Request for information. Are there more drawing or schedules?

Government Response: No. If additional information is required, please submit RFI’s.

(18) Request for information. Is this ductwork to be lined or wrapped? Standard says wrapped is preferred but I saw that a lot of the existing wasn’t wrapped so I thought it best to get clarification. Page 18- Section G-#4

(19) Request for information. Standards G 6. Shows exposed ductwork to be primed / painted. If ductwork is to be wrapped, is it concerned exposed and does this standard apply?

Government Response: This Standard does not apply since all new ductwork is to be wrapped insulation.

(20) Request for information. Ground protection- Who’s responsibility will it be to protect the equipment underneath where we are working? If ours, what kind of protection will be required?

Government Response: Contractor is responsible to protect Govt. equipment and materials using acceptable means and methods.

(21) Request for information. Who is responsible for relocating industrial equipment and supplies below work areas?

Government Response: If Govt’s Equipment relocation is required, the GOVT will do the relocation.

(22) Request for information. Is any special metal required for the duct to prevent rust in the future?

Government Response: Please refer to SOW. Para: 5.2.1, 5.2.2 and 5.2.3

(23) Request for information. What pressure class is the duct supposed to be?

Government Response: All ductwork shall be rated for a minimum of +2”wg.

(24) Request for information. Is there a EMCS system or point of contact for any detectors or sensors that might need to be removed. Will this be separate and apart from bid and handled by others?

Government Response: No. If the Contractor encounters any objects of concern please report to your Government Inspector.

(25) Request for information. Will architectural CAD files be available for the mechanical backgrounds on the shop drawings?

Government Response: YES, It is provided in the Contractor’s CD. If not, please contact office.

(26) Request for information. Can you confirm the work schedule-document 00 70 00 section 1.3.2 states hours will be between 0715-1600 but on the SOW section 2.2 work hours are listed as 1600-0700?

Government Response: 1600 - 0700

(27) Request for information. Please confirm there is no design associated with this project, to include mechanical, electrical, and fire protection.

Government Response: Only shop drawings for the duct and ductworks installation are required, no design is required.

(28) Request for information. Please confirm that heavy metal dust abatement is required for just the outside of the ductwork.

Government Response: Heavy metal dust abatement is required in this contract.

(29) Request for information. Please confirm that protective tarps or plastic sheeting will be required to be installed over the end-user works areas to prevent dust and debris from falling into the end-user work area.

(30) Request for information. Please confirm that this work must take place outside of normal working hours.

Government Response: YES, BETWEEN 1600 – 0700.

(31) Request for information. Please confirm that no asbestos abatement is required for this project.

Government Response: The ductwork caulking, where present, contains asbestos.

Asbestos caulk is Cat I non-friable asbestos and unregulated if it is in good condition and doesn’t become friable during demolition/renovation.

Since Contractors are more likely to encounter this during demolition, contractors could include asbestos abatement as part of their proposal.

(32) Request for information. SOW, para 5.2.5 states certified Air Balance. Will this require an Independent Testing Agency? Will DALT be required for new duct work?

Government Response: Yes. Refer to SOW para 5.2.5; TAB is required, DALT is not required.

(33) Request for information. SOW, para 2.8 states asbestos was identified. Will areas within this contract be abated of any ACM prior to this contract starting? Is there an asbestos survey or will documentation be provided for areas that are clear of any

ACM?

Government Response: NO. Please refer to Government Response to QUESTION 31.

(34) Request for information. SOW, para 5.1.5 states demolish duct to second floor office space between columns 52 and 53. Please clarify this statement is to be columns 41 and 43.

Government Response: COLUMNS 41 and 43.

(35) Request for information. SOW states no fire protection work. Please clarify there are no sprinkler lines under existing duct at fan deck location. The presence of sprinkler lines could impact removal or installation of ductwork.

Government Response: There is no fire protection work required. All sprinkler lines are attached to the Trusses, away from the existing duct. If Contractor runs into any obstructing object, please report such to your Govt. Inspector.

(36) Request for information. Will new ductwork require insulation?

(37) Request for information. Can we be provided with the CFM required for new air diffusers?

(38) Request for information. Please confirm that the personnel roles and responsibilities and qualifications outlined in the SOW document takes precedence over the roles/responsibilities and qualifications outlined in the specification section.

Government Response: There are no roles/responsibilities and qualifications outlined, specified or defined in the projects specification.

(39) Request for information. SOW Paragraph 5.2.5 references certified air balance.

a. Will an independent testing agency be required for this process?

b. Is DALT required for the new ductwork?

Government Response: Yes. Refer to SOW para 5.2.5; TAB is required, DALT is not required.

(40) Request for information. SOW Paragraph 2.8 mentions that asbestos was identified.

During the site visit, we observed areas potentially containing asbestos in proximity to both existing and future work areas. Will these areas be abated of any asbestos-containing materials (ACM) prior to commencing work? Additionally, will documentation be provided for areas confirmed clear of ACM?

Government Response: Government Response: An Environmental Management Survey was completed. Please refer to section 2.8 in the SOW for the findings of said survey.

(41) Request for information. SOW Paragraph 5.1.5 indicates demolition of ductwork to the second-floor office space between columns 52 & 53. Please confirm if this reference should instead be columns 41 & 43.

Government Response: COLUMNS 41 & 43

(42) Request for information. The SOW indicates no fire protection work is required. Could you clarify whether there are any sprinkler lines located beneath the existing ductwork at the fan deck location that may impact the removal or installation of ductwork?

Government Response: There is no fire protection work required. All sprinkler lines are attached to the Trusses, away from the existing duct. If Contractor runs into any obstructing object, please report such to your Govt. Inspector.

(43) Request for information. Will the new ductwork require insulation?

(44) Request for information. Could you provide the required CFM for the new air diffusers?

(45) Request for information. The SOW dated Dec 03 24 para 2.1 states that the construction area will be cleared of all Government Materials and Personnel prior to the start of construction. Please confirm all storage.

Government Response: Please see SOW Para: 2.1 GOVERNMENT OCCUPANCYOF FACILITIES: The facility will remain occupied throughout construction. The construction area, a reasonable buffer area, and any approved staging areas will be cleared of all government materials and personnel prior to the start of construction.

Contractor shall consult with the Government Project Manager/Construction QA Inspector and the using agency to coordinate procedures; means of access; space for storage of materials and equipment; and use of approaches, corridors, and stairways in such a way that accommodates the continued performance of the user’s mission during construction.

(46) Request for information. If the storage racks are emptied will the Government relocate them as described para 2.1 Government Response: Please see the response to Question 45.

(47) Request for information. The SOW dated Dec 03 24 para 2.8 indicated that caulking on the ductwork may contain asbestos. Please provide asbestos survey for the caulking mentioned in the SOW.

Government Response: Please refer to SOW Para: 1.2 - The Contractor shall perform a site investigation to verify existing conditions. If necessary, additional as-built drawings are available from 72 ABW/CE - Engineering Support, located in B400.

(48) Request for information. Please provide asbestos survey for all pipe insulation in project space.

Government Response: Please see the response to Question 47.

(49) Request for information. Confirm that there is no delegated design.

(50) Request for information. Confirm that there is no requirement for contractor to produce signed and sealed construction documents.

C. The points of contact for this project are:

a. Bash Jimoh, Project Manager. PH: 582-4828

b. Mark Williams, Construction Inspector. PH: 582-9042

c. Joshua Wheeler, CSAG Program Manager. PH: 582-4826

d. Arnaud Kouemo, Contracting Officer Representative (COR). PH: 736-3875

BASH JIMOH ARNAUD KOUEMO

Project Manager Supervisor/COR 72d Civil Engineering Directorate (Tepa) 72d Civil Engineering Directorate

0 Attachment(s):

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