Amendment_05_Hi_Velocity_AHU.pdf

1. CONTRACT ID CODE PAGE OF PAGES

AMENDMENT OF SOLICITATION/MODIFICATION OF

CONTRACT

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

05 July 11, 2017

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

GSA PBS 7PQC

ACQUISITION MANAGEMENT DIV-NON-PROSPECTUS

BRANCH

819 TAYLOR ST 12B01

FORT WORTH, TX 76102

Senthia Bruns, Contracting Officer 819 Taylor Street, 12B Fort Worth, TX 76102 817-978-0835 Email: senthia.bruns@gsa.gov

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State, and Zip Code) (x) 9A. AMENDMENT OF SOLICITATION NO.

High Velocity AHU at

X Bob Casey Federal Building, Houston, TX

9B. DATED (SEE ITEM 11)

May 23, 2017

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

[ X ] The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers [X] is extended, [] is not extended.

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 Items 8 and 15, and returning __1__ 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.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor [] is not, [X ] is required to sign this document and return 1 copies to the issuing office.

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

High Velocity Air Handler Units Replacement at Bob Casey Federal Building, Houston, TX. Provide answers to Requests for Information and extend the proposal due date by one week.

See attached page.

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

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

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

BY

7/11/2017

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

NSN 7540-01-152-8070

PREVIOUS EDITION UNUSABLE

30-105

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The purpose of this amendment is to provide answers for the Requests for Information regarding this project, attached, below, and to extend the proposal due date from July 17, 2017 to July 24, 2017.

All other terms and conditions remain unchanged.

END OF AMENDMENT

Design Build Project for High Velocity Air Handler Units Bob Casey Federal Building Houston, Texas

Answers to Requests for Information:

1. Proposal Form does not list a bid items for Design, is it the intention of the GSA to have the contractor list the design cost? Yes, Please provide a line item for Design fee in your bid Document.

2. Please provide As-built drawings as mentioned during the site visit. As Built drawings will be posted on the website, GSA Business Fedbizops

3. Please confirm that use of manufacturers is not limited to the approved list found on page 4 of the

SOW. Provide the equipment from the approved manufacturers list in the specification.

4. Please confirm that contractor is NOT to price the Asbestos Abatement; per the statement at the site visit this will be handled after award. Correct. Asbestos will be handled separately.

5. Will there be areas outside the building dedicated for an office trailer? Laydown/ storage yard? If so are utilities accessible? Existing building utilities are accessible at the working site. There is no outside storage area allowed.

6. Will all contractor personnel be required to enter the building thru the main entry and go thru the security screening process? Most work will be performed after hours and on weekend. Thus, there is no need to go thru security screening.

7. Will there be parking made available on the premises for contractor vehicles? If not is there a dedicated parking location available? No, there is parking space available & allowed.

8. Please coordinate and advise on date for follow up site visit. Will send out a date separately.

9. At the site visit, the GSA stated that an existing design is available and that prospective contractors have the option to contact the DOR. It would appear that this would be conflict of interest as the subject DOR has been privy to information not available to other contractors. No, there is no conflict.

New prospective contractor will have option to hire new AE to design the new HVAC system.

10. Please confirm that most if not all work needs to be performed after hours and if there are any restrictions for afterhours work. No restriction from 6pm – 4am.

11. Will temp cooling/heating be required during system outages? No

12. There is no description of controls in the RFP. What type/level of controls is requested by the GSA?

Controls shall match the existing Control system.

13. It is our understanding that the control system is a mix of digital and pneumatic systems. To benefit from the installation of high efficiency AHU’s, an integrated control system is required. Yes, it should be included in the design.

14. Is commissioning required? If yes, fundamental or enhanced? Fundamental

15. If commissioning is required, would a third party CxA be contracted by the owner? Is contractor commissioning assistance required? 3rd Party is required.

16. What level of PBS-100 tier of performance is required by the GSA? Designer is required to follow the guidance of GSA PBS-100

17. The existing control system is E to P (Electronic to Pneumatic). What is the desired controls scope of work associated with replacement of air handlers HVU-1 through 6? Electronic.

18. Should the existing pneumatic controls remain? No, replace them with electronic

19. What specific control system currently serves the AHUs? Siemens

20. What protocol does the existing control system utilize? Designer needs to verify with Siemens.

21. SOW para 1.A states that the pneumatic controls will be replaced and drives will be made compatible with the existing BACNET Tridium system. Please confirm that this applies to the six Air handling unit only. That is correct.

22. Are the existing units on emergency power? If so how many and do we want the new ones to follow the same philosophy. The existing units are not on the emergency generator.

23. Please confirm the internal loads of equipment, light, power, people, and overall occupancy schedule of the building. It is designer’s responsibility to provide the information.

24. How are the six HV units zoned based on exposure. Information should be found on the as-built drawings that already provided on website.

25. Have any building improvements been done to the wall insulation and/ or windows replaced? No

26. Have any improvements or renovations been done on the existing equipment (Variable speed drives, control systems upgrades etc.) No

27. Will CTAs (Contractor Teaming Arrangement) be allowed? If so, will they be evaluated like a joint-venture? Yes

28. Reference 3. Experience and qualification of Key Personnel-(Project Manager, On-Site Full Time

Project Superintendent, etc.) Please clarify if the GSA is expecting a full-time quality control manager and/or safety individuals for this project? That is correct.

29. Do the high velocity air-handlers serve the entire building? The plans provided to date have schedules showing the original six air-handlers to be replaced plus several other smaller units that serve most floors. It is unclear what areas the high velocity air handlers serve. Entire building

30. Are all new hydronic valves, circuit setters, wye strainers, flex connectors , Pete’s Plugs, thermometers, and pressure gauges required for each Air Handler replacement. Yes

31. Will the government provide security when the external access through the sidewalk is being used during construction hours? No. Would a heavy steel plate system comply with security requirements during non-construction hours? No

32. At the site walk all respondents were advised to assume a cost of zero USD for asbestos abatement.

The asbestos survey has since been released as an amendment. Please confirm that respondents are still directed to assume a zero cost for asbestos abatement. That's correct.

33. RFI: Loading Dock Usage - Please provide loading dock usage and access procedures for use during construction. Loading dock is available for contractor to deliver the materials only. No parking allowed.

34. RFI: Loading dock access & usage - Are there limitations on access to the loading dock, if so please provide the restrictions. Contractor is allowed to use the loading dock after regular working hours only. 6pm – 4pm and weekend.

35. RFI: Work hours - What limitations will there be for work hours and days, please provide restrictions.

All works will be after regular working hours and on weekend only.

36. RFI: Down time - What is the maximum downtime permitted for each air handling unit. Down time should be scheduled after regular working hours, weekend, and holidays.

37. RFI: Temporary Cooling and Heating - Will the contractor be required to provide temporary cooling and/or heating during air handling system outages? No

38. RFI: ACM Survey - GSA provided an ACM survey for the facility. Will the contractor be required to commission another ACM survey for any affected areas prior to construction? That is correct.

39. RFI: ACM Abatement - During the site walk a discussion was had regarding ACM abatement and whether the contractor or GSA would provide any necessary abatement. Please confirm that ACM abatement is excluded from this scope of work. As of now, No asbestos have been detected on these units.

40. RFI: Storage Area - During the site visit it was discussed that the contractor could use the chiller plant area to store materials for this project, please confirm. That is correct, any further storage location will be discussed with the successful bidder.

41. RFI: EMS/HVAC Controls - Please confirm it is the intent to replace the existing chilled and hot water control valves under this project. That is correct.

42. RFI: Fire Alarm - Is there any fire alarm integration required under this project. No

43. RFI: EMS/HVAC Controls - Please provide any existing points list associated with the AHU’s or their performance for the existing control system. This is the responsibility of Designer to determine.

44. RFI: AHU Capacity - During the site visit it was discussed that we are to base the new air handlers on the same capacity as existing, although in the solicitation it states to provide a full load analysis. Please confirm that the intent is to use the existing capacities to provide a baseline of performance for bidding purposes and that a complete load analysis will still be required for the project. Yes, that is correct.

45. RFI: AHU Manufacturers - A local industrial/commercial air handler manufacturer, Custom Air Products and Services (CAPS) has asked to be included in the approved manufacturers. During the site walk it was discussed that additional manufacturers may be allowed. Please provide the procedure to submit an alternate manufacturer for consideration. Alternate manufacturers need to be submitted as an equal to that’s in the statement of work.

46. RFI: Scope - Please confirm that no mechanical or EMS/HVAC controls work outside of the basement level mechanical rooms is included in this project. No, all work will be in the basement and associated with the HV- AHUs only.

47. RFI: Alternate Proposals - Please confirm that the GSA will accept alternate proposals in addition to the base proposal for this project. Yes, if you would like to submit a value engineered proposal along with your base proposal, GSA will review that proposal as well.