W912P521B00070002 Amendment 2.pdf

W912P521B0007

W38XDD10079561

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

PROJECT: Medium voltage cable removal and replacement at Center Hill Pow er Plant, Lancaster, Tennessee PURPOSE: The purpose of this amendment is to:

1. Publish the questions and answ ers (Q&A).

2. Revise the Bid Schedule.

3. Replace draw ings M-401, E-502 & E-602

4. Replace specifcations 01 22 00.00 26, 13 48 00.01 26, 02 81 13, 26 05 00.00 26, and 26 05 13.00 26

5. Attach document CENTER HILL REFERENCE PHOTOS-AMENDMENT 002

6. Revise 52.252-3 Alterations in Solicitation

1. CONTRACT ID CODE PAGE OF PAGES

J 1 9

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

16C. DATE SIGNED

BY 11-May-2021

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 W912P521B0007

X 9B. DATED (SEE ITEM 11)

06-Apr-2021

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

11-May-2021

CODE

US ARMY CORPS OF ENGINEERS-CELRN-RC-N

DIRECTORATE OF CONTRACTING

110 9TH AVENUE SOUTH, RM A405

NASHVILLE TN 37203

W912P5 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

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:

AMENDMENT 2 TECHNICAL CHANGES

I. Solicitation W912P521B0007 Center Hill Medium Voltage Cable Replacement

Technical Changes II. Amendment 0002

III. CHANGES TO BID SCHEDULE

A. The revised BID SCHEDULE replaces the original BID SCHEDULE.

IV. CHANGES TO CONTRACT DRAWINGS

A. The following CONTRACT DRAWINGS have been revised and replaced:

Sheet No. Description

M-401 HVAC Refurbishment Details E-502 Suspended Cable Supports Details E-602 Isometric Diagram and Schedule

V.

VI. CHANGES TO SPECIFICATIONS

A. The specification sections listed below replace the original specification sections.

Specification Section Description

01 22 00.00 26 Measurement and Payment Procedures

13 48 00.01 26 Seismic Restraint for Mechanical and Electrical Equipment

1.5 Equipment

02 81 13 Transportation, Disposal, and Recycling of Existing Equipment

3.1.1.c, Separating Potheads from Cable 3.1.2.c, Insulation Oil 3.1.4.a, Pothead Disposal

3.1.5 Temporary Copper Cable – Removed

02 82 14 Asbestos Abatement

1.1 General Information

3.1 Asbestos Abatement Work

26 05 00.00 26 Basic Electrical Materials and Methods 1.9.c, Contractor-Developed Supports for Terminations

3.1.1 General

26 05 13.00 26 Medium-Voltage Cable & Terminations for Generator Cables and Supports

1.5.3 AC High Potential Tests

2.2.2.2 Size

2.2.3.2 Insulation Material

2.2.3.4 Insulation Shielding

3.1.8 Intermediate Strap Supports

VII. CHANGES TO REFERENCE MATERIAL

A. Attached document CENTER HILL REFERENCE PHOTOS - AMENDMENT 002

--- END OF AMENDMENT NO. 0002 TECHNICAL CHANGES---

Q & A

Center Hill Medium Voltage Cable Replacement Questions and Answers Amendment 0002

1. Per Spec Section 3.1.2 Insulation oil, it states that insulation oil has been analyzed and PCBs were not detected.

Will the contractor be required to perform any additional PCB testing for the oil in the existing HPFF oil pipe cable system?

A: Contractor will not be required to perform any additional PCB testing for the oil in the existing HPFF oil pipe cable system.

2. Is the piping, tanks, pumps, and racks of the HPFF oil pipe cable system coated with lead based paint?

A: The piping, tanks, pumps and racks of the HPFF oil pipe cable system are coated with lead-based paint.

3. Will the contractor be required to perform any testing of the HPFF oil pipe cable system for lead based paint?

A: Contractor shall be required to perform testing in accordance with Specification Section 02 03 13, Lead in Construction.

4. Confirm if the desire is to have XLPE or EPR insulation? The specifications call out ERP, but the plans call for XLPE. There are also a few places in the drawings that call for XHHW insulation, again please confirm the desired insulation type desired. Other USACE electrical upgrade projects have allowed for either XLPE or EPR insulation in their specifications.

A: Please refer to amended Specification Section 26 05 13 .00 26 Medium-Voltage & Terminations for Generator Cables and Supports, paragraph 2.2.3.2 and drawing E-602.

5. The specifications call for cupro nickel tape with 40% overlap (See section 26 05 13.00 26 part 2.2.3.4). This is generally considered an older manufacturing method for medium voltage cable and no longer offered by most major US cable manufacturers. We propose changing this to 5 mil bare copper tape shield with 27.5% nominal overlap. This proposal meets the requirements of requirements of Sections 5 and 6 of NEMA WC 74/ICEA S-93-639.

A: Please refer to amended Specification Section 26 05 13. 00 26, Medium-Voltage Cable & Terminations for Generator Cables and Supports, paragraph 2.2.3.4.

6. The specifications (Section 2 81 13 part 3.1.2) mention the oil test results being available on “Reference Drawing No. EXHIBIT 1 - ASBESTOS AND PCB TEST RESULTS.” I do not believe this document is on beta.SAM.gov. Can you please provide this documentation?

A: Please refer to amended Specification Section 2 81 13, Transportation, Disposal, and Recycling of Existing Equipment, paragraph 3.1.2. Also, please refer to the Government’s response to question 1.

7. There is mention of installing new 500kcmil ground wire in the specifications, but this is not shown on the drawings. Can you confirm details (length and locations) for any new grounding required. See section 26 05 26.00 26 part 3.3

A: Contractor shall provide grounding per industry standards and in accordance with Specification Section 26 05 26.00 26, Grounding.

8. Can the USACE define what components contain asbestos that will need to be removed as part of this contract? The specifications mention asbestos present in “pot heats and connected lines”, but this information is not quantifiable. The specifications also mention an asbestos survey is available onsite, but none has been provided as part of this contract. See section 02 82 14 part 1.1 and part 3.1. The scope of the asbestos abatement must be clearly defined and quantifiable. Federal Acquisition Regulations prohibit placing unknown risks on the contractor.

A: The contractor will be required to remove and dispose of the oil pump control cable/wiring and potheads as required by Specifications Section 02 82 14, Asbestos Abatement.

9. Can the USACE confirm if the NEMA 3R cable risers in the switchyard will require additional seismic restraint that is not shown in the drawings? See drawing E-405

A: Additional seismic restraints apart from concrete anchors are not required. However, seismic design certification and anchorage calculations are required. Please refer to amended Specification 13 48 00.01 26 Seismic Restraint for Mechanical and Electrical Equipment, paragraph 1.5.

10. Onsite work is restricted to four days per week, Monday through Thursday. To complete all work required, at least 5 days per week will be required, and sometimes 6 days. We request that this requirement be changes to 5 days per week and up to 6 days per week upon sufficient notification and request from the contractor. (Section 01 00 00 part 1.2.1)

A: Contractor shall bid as specified in Specification Section 01 00 00, General Requirements paragraphs 1.2.1 and 1.2.2.

11. Section 26 05 00.00 26 part 1.9 requires “infrared viewing windows in locations suitable to monitor all terminations.” Can the USACE confirm the quantity of IR viewing windows that will be required?

A: Please refer to amended Specification Section 26 05 00.00 26, Basic Electrical Materials and Methods, paragraph 1.9.

12. For the Intermediate Straps required, is it the desire to connect these on the cables in the vertical orientation or the horizontal orientation? The intermediate straps typical are used to support each phase that are stacked in a vertical orientation, but the proposed layout on the drawing appear as though each phase per set are oriented in the horizontal plane.

A: The Horizontal orientation is required as stated in amended Specification Section 26 05 13. 00 26, Medium-Voltage Cable & Terminations for Generator Cables and Supports, paragraph 3.1.8.

13. Can you please confirm the size for all temporary feeders as part of this contract? There was no information drawings or the specification regarding the cable size for the temporary feeders.

A: Please refer to Specification Section 26 05 13.00 26 Medium-Voltage Cable & Terminations for Generator Cables and Supports, paragraph 2.2.2.2.

14. Is it acceptable to route the aboveground temporary feeders as required in this solicitation in cable tray? Is any supplemental grounding required as part of the running the temporary feeders?

A: Refer to Specifications Section 26 05 00 00.26 Basic Electrical Material and Methods paragraph 3.1.1. The contractor shall provide a cable support system for the above ground temporary feeders. Grounding for the temporary feeders shall be provided per common industry standards.

15. For the purpose of bidding the optional temporary feeders, can the contractor re-use the cable for temporary feeder 1 once that cutover is complete or is the desired to have all new cable for each temporary feeder?

A: Re-use of a temporary feeder will not be allowed. Contractor must provide a temporary feeder for each unit.

16. Can you provide more information on the type of rollers to be supplied as part of this contract?

Per section 26 05 13.00 26 part 3.1.5, the contractor is to supply roller assemblies. For the installation of the cable, long/wide radius rollers may be needed. Is the contractor required to supply any of these to the USACE at the end of the project per this contract?

A: Contractor shall follow Specification Section 26 05 13.00 26, Medium-Voltage Cable & Terminations for Generator Cables and Supports paragraph 3.1.5 as stated.

17. Per Section 25 05 13.00 26 part 3.1.4 the maximum distance between supports is 15ft. Can you confirm that this is correct? Elsewhere in the specifications NFPA 70 (National Electrical Code) is referenced. NEC generally requires support no more than 6 ft apart for MC cable and continuous support otherwise. I would expect similar support for MV cables, but understand that utilities have more leeway in their installation practices.

A: The maximum distance between supports as stated in Specification Section 26 05 13.00 26, Medium-Voltage Cable & Terminations for Generator Cables and Supports paragraph 3.1.4 is correct.

18. Per spec. section 01 35 26, 1.6.1.2 “The contractor Quality Control Manager cannot be the SSHO on this project…” Can the Project Manager, Site-Superintendent, QC Manager be a tri-hat position, one single individual performs all three roles?

A: Contactor shall follow Specification Section 01 35 26, Governmental Safety Requirements paragraph 1.6.1.2 as stated.

19. After existing cable is pulled out and oil is drained, could the existing 8-inch ceiling mounted conduit in the tunnel running between Tap (T1) and T4 be left in place and repurposed for new 750kcmil cable run?

A: Contractor shall provide new raceway.

REVISED BID SCHEDULE

CENTER HILL DAM MEDIUM VOLTAGE CABLE

REPLACEMENT

REVISED BID SCHEDULE

AMENDMENT 0002

Item Description Estimated Unit Quantity Unit Price Amount

VIII. BASE BID ITEMS

0001 Mobilization and Demobilization

1 Job $ $

0002 Remove and Dispose of Existing HPFF Oil Pipe Cable System for Unit 1

1 Job $ $

0003 Remove and Dispose of Existing HPFF Oil Pipe Cable System for Unit 2

0004 Remove and Dispose of Existing HPFF Oil Pipe Cable System for Unit 3

0005 Remove and Dispose of Existing HPFF Oil Pipe Cable System for Circuit #4

0006 Supply and Install Temporary 750kcmil Feeder System for Circuit #4

Supply and Install Temporary 2000kcmil Feeder System for Unit #1

Job

0008 Remove and Dispose Existing HPFF Oil Storage Tank and Pump Skid

Supply and Install New Saddle Cleats, Cleat Support Structures, and Anchors

Job $ $

0010 Supply and Install New 1 Job $ $ 2000kcmil, Medium-Voltage Solid Dielectric Cables for Unit 1 Feeders, including Switchyard Enclosures and Terminations

0011 Supply and Install New 1 Job $ $ for Unit 2 Feeders, including Switchyard

0012 Supply and Install New 1 Job $ $ for Unit 3 Feeders, including Switchyard

0013 Supply and Install New 1 Job $ $

750kcmil Solid Dielectric Cables for Circuit #4 Feeders, including Conduit and Switchyard Enclosures

0014 Provide O & M Manuals 1 Job $ $

0015 Provide Commissioning Services and Training

1 Job $ $

0016 Provide Final Record Drawings 1 Job $ $

0017 Supply and Install Temporary 2000kcmil Feeder System for Unit 2

0018 Supply and Install Temporary 2000kcmil Feeder System for Unit #3

0019 Supply and Install 1 Job $ $ Water Coil for Cable Tunnel Cooling System

IX. TOTAL

BASE ITEMS $

SECTION 00 21 00 - INSTRUCTIONS

The following have been modified:

52.252-3 ALTERATIONS IN SOLICITATION (APR 1984)

Portions of this solicitation are altered as follows:

Amendment 0001:

PROJECT: Medium voltage cable removal and replacement at Center Hill Power Plant, Lancaster, Tennessee

PURPOSE: The purpose of this amendment is to:

1. Provide the site visit sign-in sheet as a separate attachment.

2. Extend the bid opening due date from Tuesday, May 11, 2021 at 1:00 p.m. Central Time to Tuesday, May 18, 2021 at 1:00 p.m. Central Time.

Amendment 0002:

PROJECT: Medium voltage cable removal and replacement at Center Hill Power Plant, Lancaster, Tennessee

PURPOSE: The purpose of this amendment is to:

1. Publish the questions and answers (Q&A).

2. Revise the Bid Schedule.

3. Replace drawings M-401, E-502 & E-602

4. Replace specifcations 01 22 00.00 26, 13 48 00.01 26, 02 81 13, 26 05 00.00 26, and 26 05 13.00 26

5. Attach document CENTER HILL REFERENCE PHOTOS-AMENDMENT 002

6. Revise 52.252-3 Alterations in Solicitation

(End of Summary of Changes)