NND16586677E_Solicitation_Amendment_2.pdf

(x)

NND16586677E

x x copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT

THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

DFRC

Edwards CA 93523-0273 P.O. Box 273 M/S 4811-140 NASA/Armstrong Flight Research Ctr.

07/28/2016

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

07/28/2016

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not, is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The following changes have been made to the solicitation:

1. The Questions and Answers Part 2 document, dated 7/28/2016, has been added.

2. The attachment entitled, "Steam Tunnel Details", has been added.

3. The attachment entitled, "Removable Bollards Detail", has been added.

4. Specification Section 09 51 00 entitled, "Acoustical Ceilings", has been added.

5. The hour and date for receipt of offers is not extended.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

Andrea C. Basham

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

NSN 7540-01-152-8070

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

Questions and Answers Part 2

7/28/2016

Question 19. Will the hanger be unoccupied and cleared out during the construction?

Answer 19. The hanger will remain in operation during demolition of existing evaporative cooling units and installation of new air handling units. Installation of radiant heating units (if awarded) will require close coordination with the occupants and be done on Regular Days Off (RDO) Friday’s, Saturday’s, and

Sunday’s for work affecting the hangar. Only portions of the hangar will be available for the contractor to install the radiant heating system. Plan on having access to one quadrant of the hangar at a time and completing work in each quadrant before moving to the next. The hangar occupants will relocate the aircraft prior to work beginning in the quadrant. Radiant heating work that does not impact the hangar area can be performed during normal business hours.

Question 20. Please provide the survey reports on any hazardous material such as asbestos and lead.

Answer 20. A complete hazardous material survey for B4802 does not exist. We know however, that the paint on the structural steel members of the building contain lead and that the draft curtains above the acoustical ceiling are made from an asbestos containing material (transite).

Question 21. Can you please provide the sign in sheet for the job walk for the subject solicitation?

Answer 21. The sign-in sheet was posted on 7/21 as part of Amendment 1 of the solicitation.

Question 22. I wanted to see if you had any info regarding general contractors for this project. Does this project already have generals preselected or do you know of which generals are bidding? If you could let me know I would appreciate it so we can submit our electrical sub BID correctly.

Answer 22. The bidding contractors are unknown. The sign-in sheets of the participants of the job walk have been posted as part of Amendment 1 of the solicitation.

Question 23. E-400 shows two type of bollards; fixed and removable, but there is only detail for the fix type on the drawings.

Please provide details/specification for the removable bollards.

Answer 23. A detail for the removable bollard is included as a separate attachment entitled, “Removable

Bollard Detail”.

Question 24. The additive options work affects the existing suspended ceiling system.

Please provide the specification for the existing suspended ceiling system.

Answer 24. The specification requested is included as a separate attachment entitled, “Acoustical

Ceilings 09 51 00”.

Question 25. Does the Duck Bank Detail on E-010 apply to both high (480/277V) and medium (12.47KV) voltage underground conduits?

Answer 25. Yes, the detail applies to both medium voltage and low voltage duct bank installations.

Question 26. Fire alarm code requires duct smoke detectors to be installed on both the supply and return air ducts to the air handler where units total CFM is 25,000 CFM or greater. AHU 3, AHU 4, AHU 6 and AHU 7 do not show return air ducts. How is the return air duct detector to be installed?

Answer 26. Duct detectors on supply only, if units do not have return air. AHUs with cooling only do not have return ducts.

Question 27. Ref EDM-1731 sheet 13, M-001; Note 12 states 'Smoke detector in supply air duct for unit shutdown (by controls contractor.' Is it the intent of this project for both the HVAC controls contractor and the fire alarm contractor to provide duct smoke detectors?

Answer 27. It is preferred that the duct detectors come integral to the AHU. If not, then Simplex is to provide and install the interface to the fire alarm system. Siemens will interface control to the AHU.

Question 28. Ref EDM-1731 sheet 39, E-300; Notes 5 and 6 appear to be contradictory. Is the duct smoke detector to be programmed to provide an alarm or supervisory condition at the fire alarm panel?

When a duct smoke detector goes into alarm will it be required to sound fire alarm evacuation signals?

Answer 28. Supervisory only, no evacuation. However, per the NASA AHJ, the AHUs will shutdown from any fire alarm in the hangar (manual pull, heat detector, waterflow, etc.) in addition to the supervisory duct detectors on the units.

Question 29. Is the existing tunnel just a utility trough or walk-in tunnel?

Answer 29. The existing tunnel is a walk-in tunnel.

Question 30. Will any portion of the Hangar be occupied or used by the government in any way that would require use to phase during the contract performance period?

Answer 30. Refer to Answer 19.

Question 31. Pictures of the interior space were not allowed to be taken during the site visit. We request the government take pictures of the ceiling and provide them under the next Amendment.

Answer 31. No pictures will be provided; the separate attachment entitled, “Acoustical Ceilings 09 51 00” addresses the ceiling specification.

Question 32. The Contractor is required to leak-test the existing ductwork. If leaks are detected, will the cost to properly seal them be handled through the change order process since there is no way for us to quantify the costs?

Answer 32. No, the contractor should plan to repair existing ductwork without a change order being issued since reusing existing ductwork is part of the scope of work.

Question 33. Is the Project Manager required to be onsite full time?

Answer 33. The Project Manager is not required to be onsite full time.

Question 34. Will separate and full time field personnel to include Superintendent, Quality Control Manager (QCM), and Site Safety & Health Officer (SSHO) be required?

Answer 34. Superintendent and SSHO can be the same person, but QCM must be a separate person.

Question 35. Can any of the field personnel be combined, such as the Superintendent & SSHO roles or Superintendent & QCM?

Answer 35. Refer to Answer 34.

Question 36. Please clarify the requirements related to LEED & certification. Spec Section 23 08 00.00 10, para 1.3.2 first sentence states that formal LEED certification is not required. However, the last sentence of the same paragraph states to provide documentation for as many LEED credits as possible to support LEED Silver certification of the project. Will LEED certification be required? Will the contractors be required to expend effort and costs related to gathering, documenting, and submitting any LEED related items?

Answer 36. LEED certification is not required.

Question 37. Will Enhance Commissioning be required and if so for what systems?

Answer 37. Yes, Enhanced Commissioning is required for HVAC, heating, and electrical systems.

Question 38. Refer to Question and Answers dated 7/20/2016, question # 15. Can gas piping be installed with threaded fittings?

Answer 38. Yes, threaded pipe is acceptable.

Question 39. Will the Hangar be empty and vacant during HVAC down-time?

Answer 39. Refer to Answer 19.

Question 40. Will the Hangar be empty and vacant during interior overhead construction i.e. radiant heater installations?

Answer 40. Refer to Answer 19.

Question 41. Please provide specifications for the existing T-bar and ceiling tile materials?

Answer 41. The specification requested is included as a separate attachment entitled, “Acoustical Ceilings 09 51 00”.

Question 42. Please provide a detail of the existing utility vault to be used for the new gas piping.

Answer 42. Detail is included as a separate attachment entitled, “Steam Tunnel Details”.

Question 43. Is a section available showing the existing conditions behind the T-Bar bulkhead running along the West side ceiling?

Answer 43. No, a section is not available.

Question 44. Is the existing aluminum siding screwed or riveted to the steel framing? Can the new siding be screwed to the framing?

Answer 44. The existing siding is fastened with screws and appropriate screws may be used for attaching any new siding.

Question 45. Will all exterior ducting require painting? If so, please provide spec.

Answer 45. No paint is required on ducts.

Question 46. For note “provide framed opening in suspended ceiling” Detail 1 of drawing M001. Is the framed opening intended to be constructed with T-Bar grid or structural steel angle?

Answer 46. The intent is to have an escutcheon with a finished appearance and one that is solidly attached.

Question 47. 01 11 00 section 1.1.7 references water softeners, will water softeners be required?

Answer 47. No, water softeners are not required.

Question 48. Please confirm the Fire Building roof does not contain any asbestos material and does not require abatement by the contractor.

Answer 48. We do not have any asbestos reports, the contractor should field verify prior to replacement.

Question 49. Will any steel framing be required at the exterior walls around the radiant heat vents?

Detail 1/M001

Answer 49. This is for the contractor to determine based on installation and manufacturer recommendations and instructions.

Question 50. Will staging be permitted on the East roof area during new louver installations?

Answer 50. Staging will not be permitted on the East roof area.

Question 51. Is there an ACM and/or Lead hazmat survey available for the Hangar?

Answer 51. A complete hazardous material survey for B4802 does not exist. We know, however, that the paint on the structural steel members of the building contain lead and that the draft curtains above the acoustical ceiling are made from an asbestos containing material (transite).

Question 52. Please confirm that the paint on the existing mechanical supports scheduled for demolition does not contain lead paint and does not require abatement by the contractor.

Answer 52. A lead paint report is not available, the contractor should field verify prior to demolition.

Question 53. Please confirm that the paint on the window mullions of the hangar doors does not contain lead paint and does not require abatement by the contractor.

Answer 53. A lead paint report is not available, the contractor should field verify prior to demolition.

Question 54. Please confirm that the existing ACM window caulking is to be left in place during the solar film installation.

Answer 54. Per the drawings and specifications, the window caulking is to remain in place. Nothing in the drawings or specifications indicates that the window caulking is ACM.

Question 55. Who is responsible to relocate portable container referenced on sheet M200A, demo note 8?

Answer 55. The portable container will be relocated by contractor per NASA direction.

Question 56. Will the HVAC system cleaning (23 01 30.41), test and balance (23 05 93), commissioning (23 08 00.00 10) and DDC controls (23 09 23.13 20) be required to be performed by first tier subcontractors?

Answer 56. DDC controls is required to be sole sourced to Siemens.

Question 57. Question #15 on Amendment #1 was answered “yes”. Is it yes to threaded pipe as well as protection of floor and fire concerns?

Answer 57. Yes, threaded pipe is acceptable as well as protection of floor and fire concerns.

Question 58. Please confirm that Simplex is the sole source for fire alarm system?

Answer 58. Yes, Simplex is the sole source for the fire alarm system.

Question 59. Please confirm that Siemens is the sole source for EMCS/DDC?

Answer 59. Yes, Siemens is the sole source for EMCS/DDC.

Question 60. What is the thickness of the existing concrete being demolished where new equipment pads are to be installed? Without Geotechnical report to confirm existing assemblies we’re left to guess.

If thickness is not known then will a thickness be identified so that all are bidding the same thing?

Answer 60. The thickness of the concrete to be demolished is 8 inches thick.

Question 61. From the site visit it appears that the gravity relief air louvers at the east elevation (as sized 84”X48”), will be behind the conduits which are attached to the exterior face of the wall. Is this correct, or will a fixed dimension be provided for location of said louvers, or will the conduit and its contents need to removed and replaced to accommodate installation of louvers?

Answer 61. The intent is for the existing louvers to be removed and replaced with new, like size. If existing conduits interfere, you may remove and reinstall them as required.

Question 62. We are a local mechanical company in the area and would like to put out a bid on this project, however we do not know who the general contractors are bidding this project. Do you have a list of any kind?

Answer 62. There is no list of general contractors, but the sign-in sheets for the job walk conducted on 7/19 were posted on 7/21 as part of Amendment 1 to the solicitation.

Question 63. We see there was a mandatory job walk that was on the 19th. Does that apply to the generals only or can a sub contractor still BID on the job even though they didn’t attend the job walk.

Answer 63. The job walk on the 19th was not mandatory.

Question 64. Can we ask bid date to be post pone?

Answer 64. The bid opening date will not be extended at this time.