J-8_UPDATED QA for PWM HVAC and Fire Alarm_12_16_2024.pdf

Q&A for PWM Portland Maine ATCT Mechanical & Roofing

Due Date: November 06, 2024

UPDATED VERISON Released on: December 16, 2024

1. I don’t see an abatement report on this project. Will abatement be required? If yes, we will need to invite an abatement contractor to the site visit.

FAA Response: No abatement on this project.

2. The specifica ons indicate the controls are Schneider or approved equal. Will the controls be just schneider or will other brands be acceptable?

FAA Response: Other brands could be acceptable if they submit the required informa on to prove they are equal.

3. Please confirm Taxes are required for this project.

FAA Response: The FAA is exempt from Taxes, however that does not exempt the contractor.

4. Sec on 01 40 00 requires an independent quality control organiza on. Please confirm this independent QC organiza on will be required as this will add a lot of expense to this project.

3.4

INDEPENDENT QUALITY CONTROL ORGANIZATION (CQC)

A. Addi onal CQC Personnel: In addi on to CQC personnel specified elsewhere in this specifica on, the Contractor must provide as part of the CQC organiza on specialized personnel to assist the CQC System Manager in the following areas: civil, architectural, structural, mechanical, electrical, and fire protec on. These individuals must:

1. Be directly employed by the prime Contractor or a Quality Control sub-contractor but maynot be employed by a supplier or other sub-contractor on this project

2. Be responsible to the CQC System Manager

3. Be on site once a week minimum to support construc on ac vi es in their areas of responsibility

4. Have the necessary educa on and/or experience in accordance with the experience matrix listed herein.

5. These individuals must review all submi als in their areas of responsibility prior to submission to the FAA

6. Witness tes ng of the ac vi es in their areas of responsibility.

7. These individuals may perform other du es but must be allowed sufficient me to perform their assigned quality control du es as described in the Quality Control Plan.

8. All personnel are subject to FAA approval.

B. EXPERIENCE MATRIX

Area Qualifica ons

1. Mechanical US Registered Mechanical Engineer with

i. 2 years related experience.

ii. Required knowledge of HVAC TAB,

iii. HVAC DDC and HVAC commissioning.

2. Electrical US Registered Electrical Engineer with

iv. 2 years related experience

3. Structural US Registered Structural Engineer with

v. 2 years related experience

Personnel indicated above must have no business rela onships with any subcontractors involved with this project; or with any equipment device manufacturers, suppliers or installers for any such equipment provided as part of this project.

E. Organiza onal Changes: When it is necessary to make changes to the CQC staff, the

Contractor must revise the CQC Plan to reflect the changes and submit the changes to the COR for acceptance.

FAA Response: Yes, it is required. Follow the specs.

5. Please confirm the superintendent can fill the rolls of superintendent and QC for the contractor.

FAA Response: The site super can perform some of the QC tasks but shall not be the final responsible party for quality control. The QC manager needs to be a separate individual from the superintendent. The QC manager does not need to be onsite at all mes as long as the superintendent is func oning as the onsite QC representa ve during those mes.

6. Note 2 on the Architectural Drawings Directs the contractor to “see A500 for room finish schedule.” A er reviewing A500 only 2 rooms are called out to be painted. These are rooms

404 and 408. Other notes indicate to patch and match exis ng finishes. There is no way to quan fy the limits of patching and pain ng un l such me as the contractor mobilizes to perform the contract work. Does the government prefer the contractor carry an allowance for pain ng scope? Please advise

FAA Response: Cannot locate notes regarding patch and match exis ng. Please clarify where men oned note is. Sheet A500 Note 4 and Finish Schedule indicates what is required to be painted.

7. Page 4, Item A states the exis ng TRANE BAS will be replaced with a Schneider Electric

EcoStruxure BAS. Maine Controls is a Distech Controls system integrator. We would like to have Distech Controls considered as an approved equal.

FAA Response: Refer to Spec 23 09 23 DDC for HVAC and Spec 01 25 00 Subs tu on procedures.

EcoStruxure hardware and so ware is required. The specific installer shall be one of those listed.

8. My ques on is, as I will be Subcontrac ng this project out if I am awarded, can my

Subcontractor be responsible for obtaining the Bonds? My Firm will be handling the

Administra on, mee ngs, scheduling as well as ac ng as the Project Manager for the Project.

My Subcontrac ng will be handling all the labor on the project.

FAA Response: The Prime Contractor will be responsible for providing all required payment and performance bonds.

9. Typically Fire and Security Alarm Contractors are trained and authorized on specific equipment. Please provide contact informa on on the current companies servicing and maintaining the current equipment on-site.

FAA Response:

Security: Johnson Controls

Acct: 734038

Local Phone: 207-383-5390

Simplex Grinnell

Kenneth Plourde (sales)

207-842-6440 (cell) kplourde@simplexgrinnell.com

30 THOMAS DRIVE

WESTBROOK, ME 04092

PHONE: 207-842-6440

Note: By no means is the contractor required to use these vendors. These are simply the current servicing POCs. The vendor that will be modifying the fire alarm and security systems shall be approved by the associated equipment manufacturers for the work to be done.

10. Regarding the SOLICATATION, OFFER and AWARD document, page 4 of 72 states that the exis ng TRANE BAS will be replaced in full with Schneider Electric EcoStruxure BAS. Maine

Controls would like approval of a Distech Controls building automa on system as an acceptable op on.

FAA Response: Refer to Spec 23 09 23 DDC for HVAC and Spec 01 25 00 Subs tu on procedures.

EcoStruxure hardware and so ware is required. The specific installer shall be one of those listed.

11. Will an addi onal site visit be allowed before the bid submission date?

FAA Response: No

12. Are on site weekly project and coordina on mee ngs mandatory? Will you allow online teleconference via teams, zoom, etc.

FAA Response: Mee ngs are mandatory and are allowed to be virtual. TEAMs is the preferred method of the FAA.

13. It is our understanding that Primavera P6 meets the specifica on scheduling requirements for the project. Please confirm acceptance of Primavera P6.

FAA Response: Yes Primavera P6 is acceptable.

14. Pre-Bid Ques ons regarding the DDC por on of the project (Div. 23-09-23):

M603 – Details 3, 5 & 6:

1) Detail 3 calls for a modula ng control valve. However, this unit is not controlled by the DDC (See page M809), Is the intent to have a manufactured provided valve that modulates? Or, will this valve consist of On/Off control via local thermostat? We recommend the controls contractor provide this valve as ON/Off with flow control characteris cs. Please advise to the intent.

FAA Response: Refer to Drawing M809 HOT WATER UNIT HEATER SEQUENCE OF OPERATIONS.

The hot water valve shall be a Belimo Energy Valve (modula ng).

2) Detail 5 shows the hea ng make up water piping, however, there is no DDC meter shown on this detail. Page M813 describes the make up water meter, but there are no points in the matrix for the meter. Typically, the purpose of these meters is to show possible water leakage on a closed loop system if there is an abnormal amount of water introduced to the system.

a. We would typically provide 2 F4600 flow meters (1 ea) for the chilled water and hot water make up water. Please provide direc on on what the FAA is looking for.

FAA Response: Please bid make-up water meter as described. Loca on of flow meters to be discussed with FAA COR.

3) Detail 6 shows an energy valve for the VAV hot water coil. Energy valves are not the best solu on for control at low GPM’s. We recommend using a Belimo Q series flow control valve that is designed for these types of applica ons. If this recommenda on is accepted, note that these valves do not come with the temperature sensor well, please confirm if a temperature in the supply line of the hot water reheat piping is what the FAA desires.

FAA Response: Energy valves are not required for VAVs. Please provide a pressure independent control valve for this applica on. An acceptable valve would be PIQCV. Other valves will be considered through submi al process. VAV supply water temperature is not required.

M606 – Detail 2 Glycol feeder schema c:

Metering sequence of opera on:

1. This drawing is calling for the following:

a. Domes c water meter

b. Make up water meter (addressed in previous ques on)

c. Electric Meter

d. Natural gas meter

Does the FAA want this metering (a, c & d) and if so, who is providing/installing these meters? It does not seem clear to us what the intent is, please clarify. If DDC contractor is providing, is there metering devices that are pre-approved by the FAA?

FAA Response: Domes c water meter can be deleted from scope. Contractor must provide and install make up water meter, electric meter, and natural gas meter. The intent is to have readily available informa on about u lity usage.

Network Architecture:

1. This diagram shows a “Supervisory Controller” – however, the specifica ons do not allow for this and specifies that a Network Server Controller (NSC) shall be used on each cri cal system.

Shall we assume the specifica ons (Sec on 23-09-23-70) supersedes this detail?

FAA Response: Correct

15. The basis of design mechanical equipment is stated as JCI/York with no other acceptable manufacturers listed. Are alternate/equal equipment manufacturers, such as Trane, acceptable?

FAA Response: Refer to specifica ons. Other manufacturers will be considered if all the requirements have been met. The contractor will inherit all liability for any modifica on to the design that might be necessary to meet the project requirements. (i.e. floor space, piping connec ons, etc.) All major equipment shall be from one manufacturer.

16. Basis of design boiler manufacturer is stated as Lochinvar; are alternate/equal manufacturers, such as Viessmann, acceptable?

FAA Response: Refer to specifica ons. Other manufacturers will be considered if all the requirements have been met. The contractor will inherit all liability for any modifica on to the design that might be necessary to meet the project requirements. (i.e. floor space, piping connec ons, etc.) All major equipment shall be from one manufacturer.

17. The HVAC return grills show as just a grill on the plans, using above ceiling as their return plenum. Typically, we see acous cally lined elbows a ached to these grills for noise reduc on. It also prevents people from looking up into an unfinished ceiling. The specs and details and do not appear to call these out as a requirement. Will acous cally lined elbows at the grills be required?

FAA Response: Please provide acous cally lined elbows as described.

18. The in-duct humidifier does not show detail on how it's installed within the duct. Typically we see in duct humidifiers installed in a minimum of 5' of stainless duct with a drain trough built in; will this be required on this project?

FAA Response: Install per the manufacturers installa on instruc ons. The intent was to replace the wall mounted unit and reuse the exis ng distribu on systems. If the new equipment requires a different installa on than what is exis ng, contractor to install per manufacturer’s installa on instruc ons.

19. Specifica on sec on 011000, paragraph 1.10.A: states normal working hours as Monday through Thursday, 10 hours/day with work outside normal working hours requiring COR approval. Past projects we’ve completed at this control tower required a significant amount of off-hours/night work. Please define what the requirements will be for off-hours/night work on this project.

FAA Response: Any ac vi es that are invasive to the NAS shall be performed off hours. This includes, but not limited to, electrical cutovers, mechanical cutovers, tes ng, etc as required by

FAA COR. Majority of work is expected to take place during normal working hours with only high-risk ac vi es taking place during off hours. Contractor shall assume less than 10% of work to be off hour work.

20. What exterior staging area will be allo ed to the contractor? Will Base Building Personnel temporary facili es be located in the allo ed area or elsewhere? Please provide a loca on map with dimensions. If the allo ed loca on is not in a securely fenced area - what are the contractor's requirements/responsibili es for temporary fencing, security, etc to be compliant with airport regula ons?

FAA Response: Contractor to u lize the 4 parking spaces and grassy area in the southeast corner of the lot for staging. Base building personnel facili es to be located east of base building on grass area. It is expected contractor employees may have to obtain parking offsite (i.e. parking garage).

21. Will airport security badging, acquisi on of escor ng privileges, vehicle tags, etc be required for the contractor? If so, please detail what is needed.

FAA Response: Please refer to 01 00 00 1.12 Security Requirements and 01 10 00 1.13 Security

Requirements. Vehicle tags not required to access tower.

22. Is there any known or suspected hazmat that may be impacted by the work in the project drawings? (lead paint, ACM, etc) If so, please iden fy all loca ons of impact. For pricing purposes, shall it be assumed no tes ng or remedia on efforts will be required?

FAA Response: No ACM or lead paint is expected to be impacted by project work. Do not carry any price for tes ng or remedia on.

23. Solicita on Sec on 17: Shall the "AMOUNTS" provided list the sum of the J.4 and J.4a Project

Grand Totals, or shall each Project Grand Total be listed separately?

FAA Response: Provide the grand total for J.4 and J.4a separately.

24. Dwg -G020, General Phasing Note 11: What size or square footage temporary office trailer is requested? Who is responsible for furnishing the trailer? If the contractor, please specify what must be provided.

FAA Response: Refer to spec 01 50 10 FAA TEMP OFFICE TRAILER. See a ached cut sheet of

44’x12’ Williams Scotsman Mobile Office for basis of design.

25. Dwg -G020, General Phasing Note 11: Will a 2-sta on portable toilet trailer be adequate? Is there a spigot available that may be u lized for the unit?

FAA Response: See a ached cut sheet on toilet trailer used as basis of design. No water spigot needed for this trailer.

26. Dwg -D141, Note 1: Note refers to 4/A141 - Dwg -A141 details are unnumbered, please clarify.

FAA Response: Refer to page A610 for roofing details. Install roof per manufacturers recommenda on and show this on shop drawing submi al.

27. Dwg -D300 to -D304, General Demoli on Note 5: What specific tests and/or characteriza on analyses are required for the drained glycol?

FAA Response: Contract with a chemical company to test the exis ng water and add any required chemicals as needed, including corrosion inhibitors and glycol. See specifica on sec on

23 25 00 1.3.C for required tests.

28. Dwg -M400, grid loca on 7C: Please clarify the pipe symbol iden fied with the red arrow, it is not iden fied in the legend on dwg -M000:

FAA Response: Isola on ball valve.

29. Dwg -M500; Specifica on sec on 23 64 23.13: In the air cooled chiller schedule, the basis of design is York. The mechanical specifica ons do not list any other acceptable manufacturers. Is Trane acceptable to bid?

FAA Response: Refer to 01 25 00 and Refer to 01 33 00 Sec on C – Subs tu ons. Other manufacturers will be considered if all the requirements have been met. Chillers must meet performance requirements per drawing M500.

30. Dwg -M500; Specifica on sec on 23 73 43.16: In the air handling unit schedule, the basis of design is JCI. The mechanical specifica ons do not list any other acceptable manufacturers. Is Trane acceptable to bid?

FAA Response: Refer to 01 25 00 and Refer to 01 33 00 Sec on C – Subs tu ons. Other manufacturers will be considered if all the requirements have been met. The contractor will inherit all liability for any modifica on to the design that might be necessary to meet the project requirements. (i.e. floor space, piping connec ons, etc.) All major equipment shall be from one manufacturer.

31. Dwg -M500; Specifica on sec on 23 82 19: In the fan coil unit schedule, the basis of design is

JCI. The mechanical specifica ons do not list any other acceptable manufacturers. Is Trane acceptable to bid?

FAA Response: Refer to 01 25 00 and Refer to 01 33 00 Sec on C – Subs tu ons. Other manufacturers will be considered if all the requirements have been met. The contractor will inherit all liability for any modifica on to the design that might be necessary to meet the project

32. Dwg -M500; Specifica on sec on 23 36 00: In the variable air volume terminal box schedule, the basis of design is JCI. The mechanical specifica ons only list Titus as an acceptable manufacturer. Is Trane acceptable to bid?

FAA Response: Refer to 01 25 00 and Refer to 01 33 00 Sec on C – Subs tu ons. Other manufacturers will be considered if all the requirements have been met. The contractor will inherit all liability for any modifica on to the design that might be necessary to meet the project

33. Dwg -E000, Electrical General Project Note 25: Please confirm if the contractor is to generate as-built drawings for the electrical work, or if the contractor shall provide Red Lines to the FAA. If as-builts, will the final design drawings be provided in CAD to the contractor for edi ng?

FAA Response: Note 25 states Asbuilts. Final drawings can be provided in CAD form upon request.

34. Dwg -E701 and -E702, notes 1: Please provide photos of each panel's interior and the panelboards model(s).

FAA Response: Onsite walkthrough was provided to get this informa on. See a ached photos.

35. Dwg -F101, SOW: What are the manufacturers and part numbers for all items to be furnished and installed? (1, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 15):

FAA Response: These specifica ons and drawings are put together as performance criteria that the contractor is required to submit proposed products to meet such requirements. The fire alarm system devices would need to be Simplex devices compa ble with the exis ng panel.

36. Dwg -F101, Scope of Work Note 16: Please confirm if the contractor is to generate as-built drawings for the FLS work, or if the contractor shall provide Red Lines to the FAA. If as-builts, will the final design drawing be provided in CAD to the contractor for edi ng?

FAA Response: FAA will provide CAD drawings upon request. Contractor to provide asbuilt drawings.

37. Specifica on 01 00 00, 1.18 B 2: Typically a one year/12 month warranty is provided on FAA projects commencing from the date of the CAI, this sec on indicates a period of two years. Is a one year workmanship warranty acceptable?

FAA Response: This spec sec on is for correc on of work. Two year workmanship warranty required from substan al comple on.

38. Specifica on 01 00 00, 1.18 B 5: Please define "destroyed or damaged work". If work is destroyed or damaged by (1) a non-contractor individual, or (2) ac ons or events completely outside of contractor control, will the contractor be able to request payment for the costs to correct it?

FAA Response: If damage cause is directly related to project work, contractor is responsible to repair. Addi onal responsibili es may be on contractor based on specifica ons, contract, and drawings. Damage not caused by the contractor would be open to an equitable adjustment.

39. Specifica on 01 00 00, 1.19 A: Exis ng underground u li es are not shown in the PWM-

1302899-### drawing package, please provide. Please also show all hydrant and fire lane loca ons.

FAA Response: Actual loca on of underground u li es to be verified by contractor in field.

A ached is u lity loca on drawing for reference.

40. Specifica on 01 00 00, 1.28 A: Can Material Safety Data Sheets be kept in electronic form, or must hard copies be maintained on site?

FAA Response: Electronic and hardcopies of SDS’s must be onsite.

41. Specifica on 01 10 00, 1.4 D: The specifica on lists the roof access ladder as being replaced, the drawings (see A140 and A142) note the ladder as exis ng. Please clarify if the ladder is to remain or to be replaced. If replaced, please provide all necessary details.

FAA Response: Roof access ladder to remain. Also to clarify, ATCT roof is not to be replaced, only base building and tower link.

42. Specifica on 01 10 00, 1.7: Is work under other contracts an cipated while this HVAC project is underway? If so, please describe the nature of that work.

FAA Response: Poten ally, but as of now, no. FAA has the right to u lize full building during construc on. COR will coordinate work between projects if need be.

43. Specifica on 01 10 00, 1.10 A.: Working hours are listed as "Monday through Thursday 10-hour days". Shall the contractor assume day me hours beginning at approximately 0700 for all work including cutovers?

FAA Response: Work to start at 0600. Any ac vi es that are invasive to the NAS shall be performed off hours. This includes, but not limited to, electrical cutovers, mechanical cutovers, tes ng, etc as required by FAA COR.

44. Specifica on 01 10 00, 1.12 A and 1.12 B: Please provide points of contact for all u li es and all associated meter/account numbers for contractor coordina on.

FAA Response: Electric: Central Maine Power

Acct: 441-013-0193-011

Meter: 52 078 973

Phone: 800-696-1000 (outage/trouble) 800-565-3181 (customer service)

Billing Address: PO BOX 25082

OKLAHOMA CITY OK 73125

Gas: Un l

Acct: 50712675018714

Meter: H26885

Phone: 866-900-4460 (outage/trouble)

Water: Portland Water District

Acct: 127988801

Phone: 207-761-8310 (outages/trouble) 207-761-8310 (Customer service)

45. Specifica on 01 10 12, 1.1: Will the contractor or the FAA be submi ng 7460-1 through

OE/AAA?

FAA Response: Contractor to submit all 7460s through OE/AAA.

46. Specifica on 01 25 00, 1.2 E 2: Request for 3 copies implies that Subs tu on Requests should be submi ed in hard copy, please confirm if Requests can be submi ed electronically.

FAA Response: Yes, subs tu on requests can be submi ed electronically.

47. Specifica on 01 25 00, 1.2 F 6: Typically, for FAA projects the contractor is not required to provide costs or pricing informa on directly to COR/RE's, only to the Contrac ng Officer or Program Office. Please confirm that item 6 will be submi ed to the COR or if that line item may be sent to the CO directly.

FAA Response: Please submit to the CO with the COR copied on correspondence.

48. Specifica on 01 25 00, 1.2 H: "When the proposed subs tu on is not accepted, provide the product specified". What if the subs tu on was proposed because the specified item is discon nued or unavailable, what is the procedure to be in the event the proposed subs tu on is not accepted?

FAA Response: Contractor to find an adequate subs tu on and submit in accordance with drawings and specifica ons.

49. Specifica on 01 31 00, 1.5: Must the Project Manager, Project Superintendent, and

Coordina ng Engineer be three separate individuals?

FAA Response: Project Manager must be one individual. Project Superintendent must be another individual. Coordina ng engineer can also be the project manager or project superintendent as long as said individual has the appropriate qualifica ons. FAA COR can require a separate individual for Coordina ng Engineer if superintendent cannot complete both roles appropriately.

50. Specifica on 01 31 00, 1.6: Will the contract and the Portland Interna onal Jetport allow use of a drone to take the requested aerial photos?

FAA Response: No drone use on this project will be allowed. Please delete requirement for aerial photos completely.

51. Specifica on 01 32 00, 1.1 A: The specifica on states that a Construc on Schedule is to be submi ed to the CO a er contract award. However, a construc on schedule is requested in the Volume II: Factor 2 bid proposal. Please clarify the construc on schedule submission requirements.

FAA Response: Project construc on schedule is required in bid proposal. Submit schedule for bid in accordance to Volume II: Factor 2 Sec on 2. A “major ac vity” can be defined as any ac vity on the cri cal path.

52. Specifica on 01 32 00, 1.1 B: Must payment requests be made monthly or can they be made at other intervals of the contractor's choosing? Who will the hard copies of the monthly reports be submi ed to?

FAA Response: AMS Clause 3.3.1-2 Payments under Fixed-Price Construc on Contracts - The FAA will make financing payments monthly as the work proceeds, or at more frequent intervals as determined by the Contrac ng Officer (CO), on es mates of work accomplished that meets the standards of quality established under the contract, as approved by the CO. The Contractor must furnish a breakdown of the total contract price showing the amount included therein for each principal category of the work, which must substan ate the payment amount requested in order to provide a basis for determining financing payments, in such detail as requested by the

CO. In the prepara on of es mates, the CO may authorize material delivered on the site and preparatory work done to be taken into considera on.

AMS Clause 3.3.1-31 Progress Payments: Progress payments will be made to the Contractor when requested as work progresses, but not more frequently than monthly in amounts approved by the Contrac ng Officer. Excep ons to the monthly pay requirement would include delivery of material to site that has been inspected and accepted and invoices for bonding that fall within the same month as the next monthly invoice for work completed. The 3 hard copies will not be required. Each dra invoice should be submi ed to the Contrac ng Officer and

Contrac ng Officer Representa ve. The invoice should contain all proper cer fica ons and corresponding schedule of values showing percentage of work complete for each ac vity. You must also provide a copy of revised and/or updated schedule and all applicable cer fied payrolls.

53. Specifica on 01 32 00, 1.2 A 2 b: Will there be any Government Furnished Equipment for this contract? If so, please list.

FAA Response: None at this me.

54. Specifica on 01 50 00, 3.2 H: Please clarify what is needed for the 'Project Iden fica on Sign' and what the ligh ng requirements for it must be.

FAA Response: 01 50 00, 3.2H.2 is to be deleted.

55. Specifica on 01 50 00, 3.2 J: Is the internet service to be land lined or can the contractor provide hot spots or other means suitable for 3 connec ons?

FAA Response: Internet services must be landlined.

56. Specifica on 01 50 00, 3.2: Is the FAA Field Representa ve and the COR to be the same person? Will they be using an exis ng office or will they require temporary office(s)? If they will be using temporary offices will those be supplied by the FAA or Contractor? If the la er, list all requirements for planning purposes.

FAA Response: FAA will have a single lead COR. FAA COR will be u lizing the temp office trailer along with Air Traffic personnel throughout the project.

57. Specifica on 01 50 00, 3.3 F: Please provide the ATCT elevator dimensions and weight capacity.

FAA Response: Pla orm Size 5’x4’10”x7’11” (Door opening is 3’6”x6’8”) Weight Capacity

1500lbs

58. Specifica on 01 50 10: Is the "FAA Temporary Office Trailer" in this specifica on sec on in addi on to the "Temporary Office Trailer for Base Building Personnel" noted on dwg G020, or are these trailers one and the same?

FAA Response: Yes they are one and the same. To be provided for dura on of project.

59. Specifica on 01 50 10, 3.1 B: Please provide the referenced A achment #1.

FAA Response: A ached.

60. Specifica on 01 50 10, 3.1 L: Can a portable toilet trailer be provided in lieu of an interior restroom, as was stated on dwg G020 Note 11 for the base building personnel temporary office trailer.

FAA Response: A portable toilet is required. Temp office trailer shall not have a bathroom in it.

61. Specifica on 01 50 10, 3.2 A: What security and access requirements are needed for janitorial staff?

FAA Response: Janitorial personnel to be escorted by FAA COR. Work must be done during normal working hours.

62. Specifica on 01 57 19, 1.3 B 1 a: For pricing and planning purposes, provide a list of an cipated waste and debris that we shall assume must be tested prior to disposal.

FAA Response: Calculate hazardous waste from demoli on drawings.

63. Specifica on 01 77 00, 1.2 A 2: Please clarify what is meant by insurance changeover.

FAA Response: Delete 1.2 A.2 from list.

64. Specifica on 01 77 00, 1.2 A 3: This sec on asks for occupancy permits for substan al comple on, specifica on 01 10 00 1.12 D says occupancy permits are not required. Please clarify.

FAA Response: No occupancy permits required.

65. Specifica on 01 77 00, 1.2 A 4: This sec on notes property surveys for substan al comple on, please clarify what survey efforts are being requested.

FAA Response: Property surveys are not required unless property boundaries are modified. The intent is to ensure all setbacks are complied with. Provide updated site data for all new equipment installed outside of building. Include dimensions to reference points.

66. Specifica on 01 77 00 1.2 5: What tools are being requested as part of substan al comple on?

FAA Response: Refer to specific specifica on sec ons for each substan al comple on requirement.

67. Specifica on 01 77 00 1.2 6: Where are new temporary and permanent locks being requested?

What type of locks?

FAA Response: Refer to specs and drawings.

68. Specifica on 01 78 39, 1.2 A: Is the referenced "Field Office" the 'FAA Temporary Office Trailer' and/or 'Temporary Office Trailer for base building personnel'? If the Field Office is intended to be another standalone temporary office please define it and its Contractor Furnished needs and requirements.

FAA Response: All are one and the same. One office trailer to be provided for FAA use.

69. Specifica on 01 78 39 1.4 C: Will the Contractor be provided the full package of signed design drawings in CAD format to produce As-Builts from?

FAA Response: CAD drawings available upon request.

70. Specifica on 01 81 09, 1.4A and Part 3 A: Is indoor Air Quality Tes ng to occur in advance of construc on on the exis ng system as well as on the new system, or just on the new system?

FAA Response: Both exis ng and new.

71. Specifica on 01 89 09, Part 3 B: What are the COR's requirements for an Air Quality Tes ng contractor?

FAA Response: Specifica on requires the independent contractor has minimum of 5 years experience in performing the types of tes ng specified herein, to test levels of indoor air contaminants for compliance with specified requirements.

72. Specifica on 01 89 09, Part 3 B 3: Specifica on indicates "whichever is larger". For planning purposes, shall we assume minimum one air quality test per floor?

FAA Response: Perform IAQ tes ng for at least the minimum number of required sampling loca ons, determined as follows: For each por on of the building served by a separate ven la on system, the number of sampling points shall not be less than one per 25,000 sq. ., or for each con guous floor area, whichever is larger, and include areas with the least ven la on as calculated by Ven la on Rate Procedure of ASHRAE Standard 62.1-2007 and greatest presumed source strength as iden fied by Owner. Collect air samples on three consecu ve days and average the results of each three-day test cycle to determine compliance or non-compliance of indoor air quality for each air handling zone tested.

73. Specifica on 01 89 09, Part 3 Independent Materials Tes ng C: Provided link of

"h p://www.dhs.ca.gov/ps/deodc/ehlb/iaq/VOCS/" gives a 404 Error, please correct.

FAA Response: h ps://oehha.ca.gov/air/crnr/no ce-adop on-air-toxics-hot-spots-program-technical-support-document-deriva on

74. Specifica on 01 89 09, Part 3 Independent Materials Tes ng: Are materials to be tested prior to installa on, prior to construc on start, or at any point during construc on?

FAA Response: This test must be performed prior to any work being done and then again once installa on work is complete.

75. Specifica on 02 03 00, 2.1 A: Provide specifica on on exis ng materials.

FAA Response: Contractor to verify exis ng materials in the field.

76. Specifica on 07 54 19, 1.4 I 1 a: What is the Architect's POC and informa on?

FAA Response: All correspondence shall go through FAA COR.

77. Please verify whether the roof replacement will be subject to the 2021 IECC requirements for air barrier commissioning in ar cle C402.5.1.5.

FAA Response: This project is not subject to air barrier commissioning as only the roof is being replaced.

78. Can the CQC specialist in the experience matrix be more than one individual, both of whom do the work, supervised by a P.E.?

a. If that is allowable, do they all have to be licensed engineers?

FAA Response: Yes. One person on the “CQC Team” needs to be a licensed engineer.

79. In specifica on 23 08 00 1.5 A, the BAS tes ng technician qualifica ons require a Level I

Cer fied Control Systems Technician. Cx Associates is an engineering consultancy with mul ple professional engineers on staff that also hold commissioning related cer fica ons. Will this be acceptable as a BAS tes ng qualifica on?

FAA Response: This shall be acceptable.

80. Specifica on 23 08 00 3.2 A. 1. requires construc on checklists to be reviewed by the CxA. Is there an owner hired commissioning authority (CxA)? Or will Cx Associates be ac ng as the CxA?

FAA Response: The Cx contractor shall be under contract to the GC.

81. Specifica on 23 08 00 3.10 4 A states a VAV test sample rate of 10 percent. Is sampling acceptable for construc on checklists of terminal equipment as well? Is sampling acceptable for all terminal equipment?

FAA Response: Sampling of 10% is strictly for VAV tes ng only.

82. What is the construc on schedule? When is the es mated comple on date?

FAA Response: Contractor to submit construc on schedule.

83. Specifica on 23 08 00 3.6 Construc on Checklist Examples uses vibra on isola on tes ng as an example. Is vibra on isola on tes ng a project requirement? Or is this just being used as a forma ng and content example?

FAA Response: This is an example. Please refer to specifica ons and drawings to determine if vibra on isola on tes ng is required.

84. Is the role of the commissioner to act as the owner’s representa ve in witnessing the TAB contractor perform vibra on isola on tes ng?

85. Specifica on 23 08 00 3.7 TAB Verifica on, with reference to sec on 23 05 93 Tes ng, Adjus ng, and Balancing for HVAC, requires a representa ve of the owner to randomly select 10% of TAB measurements to be remeasured. Will Cx Associates be expected to act as the owner’s representa ve in this role? Can rechecking TAB measurements be done by the TAB contractor using the TAB contractor’s equipment (in the presence of Cx Associates)?

86. Ques ons about the BAA compliance…. Will they allow the equipment to be manufactured in

Mexico? If not, please provide the FAR clause is required by the bid. We also need to know if this is a DPAS rated project. A typical FAR clause I have seen is FAR 52-225.9. I did not find this info in the bid doc’s.

FAA Response: This requirement does not include FAR clauses and is not a DPAS rated project.

The FAA falls under the AMS and the associated clauses regarding Buy American Act are as follows:

3.6.4-3 Buy American Act – Construc on Materials

3.6.4-5 FAA Buy American Preference – Steel and Manufactured Good

87. Please provide a loca on for the laydown areas.

FAA Response: In addi on to chiller yard, contractor can u lize last two parking spaces and grass area in the southwest corner. Other areas may be coordinated with FAA COR.

88. Will the loca ons for the dumpsters be located outside the laydown area? If so, please provide an allowable loca on to place the dumpsters.

FAA Response: In addi on to chiller yard, contractor can u lize last two parking spaces and grass area in the southwest corner. Other areas may be coordinated with FAA COR.

89. Will temporary hea ng and air be required? If so, will the contractor be responsible for these cost?

FAA Response: Yes and yes.

90. Under the specifica on 011000/1.4E, there is an alternate #1. Is this part of this solicita on?

The solicita on form list only a CLIN 00001, and there are no details shown on the drawings.

FAA Response: Drawings for this alternate work are available on SAM.gov page.

91. Do the Superintendent, SSHO and QC Manager need to be 3 separate individuals? Or can one person serve all 3 roles?

FAA Response: Superintendent and SSHO can be the same person. The QC manager should be a separate individual.

92. 2. Are there any phasing requirements? How many people will be in the building? Are there any temporary hea ng/cooling requirements?

FAA Response: Phasing requirements can be found on drawings G020. It is expected the number of people in the building will vary based on normal business opera ons. FAA occupants is expected to be less than 20. Temporary condi oning is required for all impacted spaces. The contractor is responsible for submi ng op ons for FAA review.

93. 3. Can the period of performance be extended a er award once the material/equipment lead mes are confirmed due to current market condi ons for the equipment for this project?

FAA Response: Yes

94. 4. Please confirm the manufacturer of the exis ng roofing system and who carries the current warranty of the roofing system.

FAA Response: Base building : Manufacturer is Firestone. No exis ng roof warranty.

Tower/Catwalk: Manufacturer is Sarnafil. Warranty is valid un l Jan 1, 2027. Copy of warranty is a ached.

95. Will it be required for the contractor to do a full set of coordina ng drawings for the mechanical systems?

a. In reading through the specs, it appears they are requiring a full set of coordina on drawings. They do not indicate that a BIM model is required. With all of the exis ng equipment, ducts, and piping remaining, it would be difficult to do a full set of coordina on drawings especially if there is no BIM model to a ach our equipment, duct, and pipes to. Did they intend to supply a base BIM model of the exis ng building and if so, will they include the exis ng mechanical systems as well as the building structure?

FAA Response: Coordina on is the responsibility of the contractor. A full scale BIM model is not available, nor is the contractor responsible for providing one. Redline/As-built drawings are the contractor’s responsibility and should reflect the final contractor’s installa on. These drawings should be provided to the COR at the comple on of the project. Though not required, for complex spaces 3D scanning and modeling is encouraged to facilitate coordina on.