Amendment 0006.pdf

NSN 7540-01-152-8070 STANDARD FORM 30. (Rev. 10-83) Previous Edition unusable Prescribed by GSA FAR (48 CFR) 53.243

Page of Pages AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. Contract ID Code

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

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

(x) 9A. AMENDMENT OF SOLICITATION NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

8. NAME AND ADDRESS OF CONTRACTOR (NO., Street, Country, State and ZIP Code)

CODE FACILITY CODE

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.

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 ______ copies of 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 ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OR OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment your 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 ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

Check One

A. THIS ORDER ID 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, is required to sign this document and return _______ copies to the issuing office.

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

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 16B. UNITED STATES OF AMERICA

(Signature of person authorized to sign)

15C. DATE SIGNED

(Signature of Contracting Officer)

16C. DATE SIGNED

Supplementary Page

PAGE 2 OF 2 GS-01P-12-BZ-C-0005/0006

Description of Modification/Amendment:

see attachments:

2 pages of Questions and Answers and 1 Sketch:SKM-03

Amendment 0006 to Solicitation No. GS-01P-12-BZ-C-0005

Amendment 0006: The Solicitation, Montpelier Cooling Towers Replacement

Solicitation GS-01P-12-BZ-C-0006 is hereby amended to incorporate:

The Questions and Answers provided for Clarification:

Question 1: Title box lists closed circuit cooling tower yet specification, drawings and data in schedule clearly identifies an open cooling tower (no mention of a coil or spray pump).

Please reference Spec Section 23000, Section 2.09

RDK Response 1: The cooling tower for the project is an open cooling tower. All references to "closed" cooling towers shall be changes to "open" .

All schedules, specifications details and sequences of operation on the drawings and specs are correct as they refer to open cell towers.

The value carried in the estimate refers to an open tower.

Attached SK references Drawing No. H8.00 Please see attached SK for clarifications

Question 2: SPEC SECTION 23 00 00 Paragraph 2.09 F2 –shall be FM approved (VTL no longer FM due to changes in FM requirements). Having FM listing only means something if FM is the insurance underwriter.

Please Reference Spec Section 23000, Paragraph 2.09-F #2

RDK Response 2: Delete references to FM requirements that are listed

Question 3: Paragraph N 1-4 Quality Assurance sounds more like a description for chillers. In particular the mention of monitoring equipment, ARI550/590, refrigerant volume requiring ASME pressure test, sound test at all 4 NPLV points all are chiller items and none apply to open cooling towers. Quality

Assurance is mentioned in Paragraph O1 and O7 and are applicable to cooling towers.

Please reference spec Section 23000, Section 2.09, Paragraph N.1

RDK Response 3: Delete references to paragraph N.1 References to O.1 and O.7 shall remain

Question: 4: Other discrepancies in Paragraph O Cooling Tower

O1a -Provide … Towers as scheduled on drawings (which is BAC) vs. O1d selections are based on

Marley NC or equal O6a -alternate #2 which as it reads says all galvanized steel components to be Stainless vs. O9e1 alternate #2 just basin up to overflow is stainless

Please reference spec Section 23000, Section 2.09, Paragraph 0-6, a.

RDK Response 4: Alternate 2 shall reference all stainless steel towers, not just stainless steel basins.

Amendment 0006 to Solicitation No. GS-01P-12-BZ-C-0005

Amendment 0006: The Solicitation, Montpelier Cooling Towers Replacement

Solicitation GS-01P-12-BZ-C-0006 is hereby amended to incorporate:

The Questions and Answers provided for Clarification:

Question: 5: O9e1 –basin with mechanical make up vs. O14b electric make up with hi and low alarm. (If mechanical it can be furnished with a hi alarm which is the only needed) NOTE Existing units have mechanical.

Please reference spec Section 23000, Section 2.09, Paragraph 0-9, e. 1)

RDK Response 5: Basin make up shall be mechanical make up with high level alarm

Question: 6: O10b and c – general description of fan which sounds like it came from an air handler vs.

O10a, d,e and f which is standard BAC

Please reference Spec Section 23000, section 2.09 –paragraph 0.10 a, e &f

RDK Response 6: Fan specification for cooling tower shall comply with paragraph O.10 a,e & f

Question: 7 O14a – Vibration rails. Rails with 1” static deflection have a height of 4-1/2”. One of the existing towers has piping going over the top of the ductwork. BAC 2/3 rules guideline indicates minimum 30” high ductwork to turn the air. To add the rails and maintain the 30” will require moving the piping, one of which is the sprinkler. In addition adding the rails requires pipe isolators and a flex duct collar. Is there a complaint of vibration? Vibration rails are not certified as seismic rated.

Please reference spec Section 23000, Section 2.09, Paragraph 0-14 a:

RDK Response7: Vibration isolation rails are required as part of the bid. The sprinkler head will have to be modified. Flexible connections are required.

Please be advised that all drawings reference H8.00 and all spec sections reference Section 23000

NOTE: Modifications to original bids and acknowledgement of Amendment 0006 will be authorized via email to carolyn.weekes@gsa.gov and must be received by the revised bid due date and time specified on Amendment 0005. Bidders are cautioned to allow sufficient time for transmission of email.

Acknowledgement of Amendments:

Bidders must acknowledge receipt of all amendments by one of the following methods in block 11 of SF

30 and per above.

GSA/PBS

10 CAUSEWAY ST., RM 1100

BOSTON MA 02222-1077