Amendment 2 Degetau Chillers Construction.pdf

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 or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT 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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

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

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

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

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

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

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, 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)

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.

15C. DATE SIGNED

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

16C. DATE SIGNED

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

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

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

04/06/2022

47PC0222R0008

Please see attached.

05/02/2022

Olga Rodriguez, Contracting Officer

X X

General Services Administration Capital Construction Branch (2PQC) One World Trade Center New York, NY 10007

General Services Administration Capital Construction Branch (2PQC) One World Trade Center New York, NY 10007

05/02/20222

DocuSign Envelope ID: 580ABFDE-9F66-4DC7-8792-846BAE6EF8F0

INSTRUCTIONS (Back Page):

Instructions for items other than those that are self-explanatory, are as follows:

Item 1 (Contract ID Code). Insert the contract type identification code that appears in the title block of the contract being modified.

Item 3 (Effective date).

(1)

(2)

(3)

(4)

(5)

For a solicitation amendment, change order, or administrative change, the effective date shall be the issue date of the amendment, change order, or administrative change.

For a supplemental agreement, the effective date shall be the date agreed to by the contracting parties.

For a modification issued as an initial or confirming notice of termination for the convenience of the Government, the effective date and the modification number of the confirming notice shall be the same as the effective date and modification number of the initial notice.

For a modification converting a termination for default to a termination for the convenience of the Government, the effective date shall be the same as the effective date of the termination for default.

For a modification confirming the contracting officer's determination of the amount due in settlement of a contract termination, the effective date shall be the same as the effective date of the initial decision.

(a)

(b)

(c)

(d)

(e)

(f)

Item 6 (Issued By). Insert the name and address of the issuing office. If applicable, insert the appropriate issuing office code in the code block.

Item 8 (Name and Address of Contractor). For modifications to a contract or order, enter the contractor's name, address, and code as shown in the original contract or order, unless changed by this or a previous modification.

Items 9, (Amendment of Solicitation Number - Dated), and 10, (Modification of Contract/Order Number - Dated). Check the appropriate box and in the corresponding blanks insert the number and date of the original solicitation, contract, or order.

Item 12 (Accounting and Appropriation Data).

When appropriate, indicate the impact of the modification on each affected accounting classification by inserting one of the following entries:

(2) Accounting classification Net decrease $

Include subject matter or short title of solicitation/contract where feasible.

Item 16B. The contracting officer's signature is not required on solicitation amendments. The contracting officer's signature is normally affixed last on supplemental agreements.

(i)

NOTE: If there are changes to multiple accounting classifications that cannot be placed in block 12, insert an asterisk and the words "See continuation sheet".

Item 13. Check the appropriate box to indicate the type of modification. Insert in the corresponding blank the authority under which the modification is issued. Check whether or not contractor must sign this document. (See FAR 43.103.)

Item 14 (Description of Amendment/Modification).

Organize amendments or modifications under the appropriate Uniform Contract Format (UCF) section headings from the applicable solicitation or contract. The UCF table of contents, however, shall not be set forth in this document.

Indicate the impact of the modification on the overall total contract price by inserting one of the following entries:

(i) Total contract price increased by $

(ii) Total contract price decreased by $

(iii) Total contract price unchanged.

State reason for modification.

When removing, reinstating, or adding funds, identify the contract items and accounting classifications.

(g)

(h)

When the SF 30 is used to reflect a determination by the contracting officer of the amount due in settlement of a contract terminated for the convenience of the Government, the entry in Item 14 of the modification may be limited to --

(i) A reference to the letter determination; and

(ii) A statement of the net amount determined to be due in settlement of the contract.

(1)

(2)

(3)

(4)

(5)

(6)

STANDARD FORM 30 (REV. 11/2016) BACK

(1) Accounting classification Net increase $

Amendment No. 2 for Federico Degetau Federal Office Building and US Courthouse Chiller Risers Repairs Construction in Hato Rey, Puerto Rico is hereby issued as follows:

1. Response to the following Request for Information (RFIs):

1.1. Q: According note (4)-Shows concrete blocks to be demolished, giving adequate access to chilled water pipe for insulate; EXISTING AND NEW ONES. We need the same access for other floors to access chilled water pipes for thermal insulation installation, otherwise, thermal insulation job cannot be performed.

A: Refer to Note 15 in Drawing PS-05. and to Note 24 in Drawing T-1. The installation sequence suggests all insulation works and inspections at basement level. Insulated piping shall be pulled from the basement up to the 7th floor.

1.2. Q: Temporary lines require FR Armaflex 2” thick.

A: Chilled water temporary lines will use armaflex type of insulation.

1.3. Q: General manner require Phenolic Foam insulation finished with aluminum jacket. Reference only at Basement Level.

a. Existing areas does not have aluminum jacket finishing.

b. Only require insulation on “Exposed to View” areas?

c. Chase areas, pipe insulation can be finished with ASJ vapor barrier only?

A: Aluminum jacket remains.

1.4. Q: Construction of temporary facilities-Will the civil works for the temporary cooling tower have to be removed at the end of the project?

A: Refer to Note #4 in Drawing T-1. All impacted areas, including civil works, need to be restored. Coordinate with GSA.

1.5. Q: Demolition works-Provide detail for temporary barriers in this area.

A: Please refer to Specs Section 017320, which discusses requirements for selective demolitions.

1.6. Q: Please provide pictures of the electrical distribution panel where the existing chiller's breakers are connected.

A: The electrical requirements for the cooling towers to make rented (number of wires, capacity of the breakers, number of breakers, etc.) are found in the One Line Diagram of the Dwg. E-2.

Other data are in the General Notes of this same Dwg. E-2. No pictures of this electrical panel will be provided at this time.

1.7. Q: Please provide pictures of the electrical distribution panel where the existing chiller's breakers are connected.

A: The electrical requirements for the cooling towers to make rented (number of wires, capacity of the breakers, number of breakers, etc.) are found in the One Line Diagram of the Dwg. E-2.

Other data are in the General Notes of this same Dwg. E-2. No pictures of this electrical panel will be provided at this time.

1.8. Q: Please provide pictures of the existing chiller breakers.

A: No pictures of the existing chiller breakers will be provided at this time.

1.9. Q: Please identify if there are any spare breakers or spaces on the panel.

A: There is space on the panel for installation of a new breaker. No spare breaker is to be used.

1.10. Q: Please include a drawing showing location of the breaker panel to assess distance to the mechanical room outside doors.

A: The panelboard location is shown on drawing E-1 (Ground Floor Electrical Power Plan).

1.11. Q: Please coordinate a second site visit. We would need a more detailed inspection and during our initial walkthrough we could not access the seventh floor. We need to assess each floor for possible demolition to access the mechanical shaft.

A: The site-visits were coordinated on Apr. 19 & 21. No additional site visits will be carried out.

1.12. Q: Will GSA accept to install temporary pipe on the outside for the building? This will lower costs, impact and decrease projected contract time." The project was developed following the sequence and logistics of the drawings PS-1 to the PS-06.

A: The project was developed following the sequence and logistics of the drawings PS-1 to the

PS-06.

1.13. Q: Will wall demolition be required for temporary piping to chiller plant? 4. Please confirm how many chillers and at what capacity do they work during peak period.

A: There is removal of certain elements such as louvers. Refer to Section 2-A1.1 and Note #2 in Drawing A-1.1.The building has 4 chillers of 450 Tons. During the peak period two chillers work simultaneously.

1.14. Q: Will PVC be acceptable for temporary chilled water pipe?

A: PVC is not acceptable for temporary chilled water pipe.

1.15. Q: Can an alternate to renting Colling tower be offered if it provides more benefits to the government and project efficiency?

A: During the solicitation process no alternates will be evaluated.

1.16. Q: Please confirm that a staging area will be provided.

A: A staging area will be provided. The location will be coordinated before the start of the project.

1.17. Q: Please confirm if there are any tapings in the pipe during the run in the shaft. 9. Can you please provide details on the Heat recovery pipe to be removed? Where are the connected to in the basement and to where it leads, because details disappear after the 6th floor.

A: There are two pairs of existing connections at 4 th Fl. & 5 th Fl th the CHW risers. The 4th Fl.

connections shall be restored. For the 5th floor see answer to question 18 listed below.

1.18. Q: Please clarify what is to be done to the pipes in the 5th floor. One page indicates that it is to be connected to the new or existing chilled water pipe. On another details it states that they are to be caped and abandoned in place. 11.Will demolition be allowed on each floor to access the mechanical shaft?

A: See PS-05: For the 5th floor line, see mechanical sequence # 13, mechanical blow up. For risers threadolets and valves for 4th and 5th floor see, mechanical sequence 15.

1.19. Q: Will the agency provide as-built drawings?

A: Refer to Note #2 of General Notes of the Construction Documents in Drawing T-1. There are no asbuilt drawings; drawings G-101 to G-104, A-1.1 to A 1.3 and M-101 to M-102 are diagrammatic, they shall not be understood as asbuilt drawings.

1.20. Q: Will the agency arrange another site visit?

A: The site-visits were coordinated on Apr. 19 & 21. No additional site visits will be carried out.

1.21. Q: Will the bid due date be extended?

A: The due date is May-06-2022. The solicitation due date will not be extended.

1.22. Q: Mechanical Shaft-Piping Details-Provide piping detail for connections on fourth and fifth floor.

A: Follow written instruction in mechanical sequences and answers to questions 24 & 25.

1.23. Q: All specification-Specification covers: Condensate Drain Piping and Refrigerant suction and hot gas insulation. Provide specification covers chilled water insulation.

A: See specification 230719 FL - HVAC Piping Insulation.

1.24. Q: AHU-FOW-B3-Pipes Lines interfere for the demolition work. Provide alternate route and instructions for these pipes.

A: Contractor shall consider the necessary means and methods to work around existing conditions.

1.25. Q: Section 017410, page 6, 3.3 requires that “all occupied spaces of the building must undergo Air Quality Testing”. There are no occupied areas at certain levels, or only a very reduced area is occupied far away from the chase and isolated by a wall and door. Please advise if the Air Quality Testing shall also be made at these levels.

A: Please refer to Page 017410-7 Section 3.3-1-(b)-2 where sampling points are further defined.

1.26. Q: In drawing E-1, the fourth-floor fire alarm plan indicates that 15cd strobe and speaker/strobe must be installed for the temporary enclosure area. No fire alarm specs are included with the bid documents. Will the building fire alarm contractor have to submit these items with a new Riser Diagram and Circuit Calculations?"

A: Required specifications information for the Fire Alarm Scope is shown on Dwg. E-2, under Fire Alarm Equipment Legend/Notes and Fire Alarm Special Notes. Fire Alarm Contractor has to submit circuit calculations for the new required devices, with the corresponding wiring diagram, for connection to the existing fire alarm panelboard, which location shall be confirmed prior to bid.

1.27. Q: Will temporary enclosure areas in the basement and fourth floor require lighting fixtures?

A: Please refer to note in Drawing where it states: "... GC shall submit plan for work area in detail, including electrical needs, lighting and power…" This note applies for all work areas and it shall be interpreted that GC shall provide equipment and installation for temporary power and lighting as required.

1.28. Q: According to the SOW, there is demolition work in certain areas, such as the 4th, 5th and 7th floors, to be able to access the pipe through the "chase", see example of detail 1/A-1.2 of page A-1.2 of the set of plans. But not so for floors 1, 2, 3, and 6, do you understand that on those floors there is no demolition to be done?

A: The only demolition expected is the one determined on plans.

1.29. Q: By the different floors through which the "chase" crosses, existing condition; Question, is there equipment or furniture in those areas, will these be removed by GSA or by the Offeror?

A: For the basement and the seventh floor the contractor is responsible to reinstall any equipment removed to access the chase or the adjacent areas. The 4th floor provides direct access to the chase, however, it is currently vacant, therefore the removal of furniture would not apply. On the 5th floor an access will be opened for the chase on the side of the hallway, in this case either, it is necessary to remove furniture, since the area is vacant, too. In the remaining floors one, two, three, and six there is no direct access to the chase, thus no furniture or equipment will be moved.

1.30. Q: In the drawings (plans - sheet A-2) a "Pipe Clamp" is illustrated between floors 6 and 5, but sheet A-1.3, does not illustrate how to access the "pipe clamp" or any demolition, how are we going to access the clamp?

A: Contractors' means and methods shall define access to the clamps and anchor locations. The final amount and location of anchors and clamps will be determined by the corresponding delegated design submittals requested in drawings and specs.

1.31. Q: In the E-1 sheet plans, there is a diagram for ""Fire Alarm"" located on the 4th floor, is this "fire alarm"" part of the jobs to be quoted or is it existing?

A: Requirements of the Fourth Floor Fire Alarm Plan, on Dwg. E-1, are not existing. This indicated fire alarm work is new, and shall be included in the contractor's scope.

1.32. Q: According to the SOW, there is demolition work in certain areas, such as the 4th, 5th and 7th floors, but in sheet A-2 Section A/A-2, it illustrates a temporary wall in the "Basement" (drywall), as in the 4th floor, but in the set of plans, there is no reference to that temporary wall, only an illustration in detail 1/A-1.1, in sheet A-1.1, but there is no demolition plan or proposed plan, will this temporary wall carry the same requirements as the other proposed walls?

A: Contractor shall ensure that the temporary walls construction at the Basement and 7th floor complies with IAQ Control Plans and Fire Prevention from Hot works to be performed.

Temporary wall at 4th floor needs to comply with details specified in plans, drawing A-1.2.

1.33. Q: A-2 SECTION A/A-2-Installation piping supports on chase. We need same access for all floors to access chilled water pipes for piping supports installation, otherwise, piping supports job cannot be performed.

A: The only demolition expected is the one determined on plans. Access for installation purposes is expected to be determined by contractor's means and methods through Basement, Fourth and Seventh Floor work areas.

2. The proposal due date remains unchanged.

3. All other terms and conditions of the Solicitation remain unchanged.

End of Amendment No. 2