A22_W912P919R0044_Amend_3.pdf

W81C8X91150348

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

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

FAR (48 CFR) 53.243

The purpose of this amendment is to post the second (2nd) set of questions along w ith CT Cabinet Photos, Asbestos Testing Report and Pre-Bid Sign-In sheet. There are no more changes.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 4

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

16C. DATE SIGNED

BY 15-Aug-2019

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

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

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912P919R0044

X 9B. DATED (SEE ITEM 11)

25-Jul-2019

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

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 Offer is extended, X is not extended.

Offer 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 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 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, 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.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

15-Aug-2019

CODE

CONTRACTING DIVISION

US ARMY ENGR DIST ST LOUIS

1222 SPRUCE STREET, RM 4.207

ST LOUIS MO 63103-2833

W912P9 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P919R0044

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added by full text:

QUESTIONS & ANSWERS NO. 2

Clarence Cannon Power Plant Excitation System Replacement

Pre-proposal Questions 8 Aug 2019

1. Can you please provide us with a copy of the “List of attendees”, including names, company names and emails that were present during the site walk of August 7th, 2019?

Please see attached Pre-bid Sign-in document.

2. In order to come up with a more cost effective proposal, could you please provide us with a list of recommended contractors in the area of the Clarence Cannon Power Plant?

The government does not recommend contractors.

3. It is expected that more time will be needed in order to get estimates for this project and properly prepare the proposal. Can an extension of the bid due date be granted? We consider that a minimum of two more weeks would be required.

Amendment 0002 state the closing date has been extended to 28 August 2019 at 10AM CST.

4. It was understood that the installation at site cannot be scheduled during the month of March or the window between 15 June and 15 September of the calendar year. Can you please confirm that the rest of the year has no restrictions for the installation of the new units to take place?

As indicated in Paragraph 1.19.4 of Section 00 08 00, the Southwest Power Administration (SWPA) does have a second outage restriction. This restriction is usually 15 December through 15 March, but SWPA has permitted the outage during December through mid-January to permit the installation of both excitation systems back-to-back. While the Government has the flexibility to move Annual Maintenance usually performed in March, an outage during the months of February and March will have to be coordinated and approved by SWPA.

5. Is there a report of the asbestos containing materials (ACM) related to the existing excitation systems available? If yes, can we get a copy?

A sample of the wiring insulation on the armature circuit was taken at the voltage regulator. The report “Asbestos Testing Report 391609384_001.pdf” has been made available for download.

6. In section 48 19 26.00 26, paragraph 1.4.4 POTENTIAL AND CURRENT TRANSFORMERS, it is said that the CT on phase B has to be removed and a set of three brand new CT’s need to be provided as part of the scope.

During the site walk, it was not possible to open the cabinets of the switchgear where the existing CT is located.

Could you please provide a picture of the existing CT as well as a picture of the intended location(s) for the new set of CT’s?

Refer to Abbott Power Corporation drawings 77G1-2 (page 50 of 64) and 77G1-3 (page 50 of 64) of the reference drawings for details on the CT installation. Photos of the Unit 1 and Unit 2 CT installations are available for download.

7. Can you please provide more detailed information (datasheets) of the existing brushes, rigging and collectors? Make, model number and drawings would be required if available.

Carbon Brushes: Helwig Carbon, Part # 10127522111417 Description: 10-127541 H552 Style: R11

Rigging: Unit #1 and Unit #2

Collector Brush Holder: M-4919813 G-3 Collector Insulated Brush Holder: K-9101584 P-8 (from the spare parts list)

Collectors: Additional information not available

8. During the site visit, it has been noted that the poles of the existing exciter machines could be an obstacle to reach the collector rings of the main generator field. Can you please clarify whether removing the poles would be a part of the scope of work? Or otherwise, what is expected to be done with the poles?

The existing rotating exciters poles may be removed in part or whole as necessary to allow the connection to the collector rings.

9. During inspection of the existing collector rings and brushes, it was noted that there are shunts on the exciter field DC circuits of both units. What does the USACE expect to be done with them?

There is no planned work for the exciter DC field shunts. They are expected to be abandoned in place.

They may be removed if necessary.

10. During inspection of the existing collector rings and brushes, it was noted that there is a CT next to a shunt on the exciter field DC circuit of Unit 2. What does the USACE expect to be done with it?

There is no planned work for the exciter DC field CT. They are expected to be abandoned in place. They may be removed if necessary.

11. In order to reach the cable trays located at the next level in the powerhouse, control and power cables will need to be routed somehow. Is it required to have new trenches underneath the future exciter location to route the cables and reach the cooling pipe trench? Otherwise, can conduits/cable trays be installed over the exciter assembly in order to route the cables to reach the cooling pipe trench?

No trenching of the existing concrete floor from the pipe chase shall be permitted. The Contractor shall surface-mount conduit to either the floor or wall to span between the pipe chase and new electrical equipment. The field-routing of the conduit shall be approved by the Government prior to installation.

End of Questions and Answers

(End of Summary of Changes)