B.08.03 Amendment 0002- 21R0006.pdf

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

Amendment 0002 serves to provide Government responses to RFIs, incorporate amended design documents, update the pricing schedule, and update the w age determinations.

1. CONTRACT ID CODE PAGE OF PAGES

1 50

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

16C. DATE SIGNED

BY 28-Jul-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 W9127S21R0006

X 9B. DATED (SEE ITEM 11)

08-Jun-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

28-Jul-2021

CODE

CONTRACTING DIVISION

USACE, LITTLE ROCK (W9127S)

700 W. CAPITOL AVE, RM 7315

LITTLE ROCK AR 72201-3225

W9127S 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W9127S21R0006

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 01 10 - TABLE OF CONTENTS

The Table of Contents has changed from:

Exhibit/Attachment Table of Contents

DOCUMENT TYPE DESCRIPTION PAGES DATE

Attachment 1 Specifications 509 30-APR-2021 Attachment 2 Contract Drawings 9 24-MAY-2021 Attachment 3 Reference Drawings 53 24-MAY-2021 Attachment 4 Wage Determinations-

Carroll, Arkansas

6 02-APR-2021

Attachment 5 Brand Name J&A- Dupont Nomex 410

2 05-APR-2021

Attachment 6 Brand Name J&A- Iris Power Engineering Model

PDA-IV

2 05-APR-2021

to:

Exhibit/Attachment Table of Contents

DOCUMENT TYPE DESCRIPTION PAGES DATE

Attachment 1 Specifications 509 30-APR-2021 Attachment 2 Contract Drawings 9 24-MAY-2021 Attachment 3 Reference Drawings 53 24-MAY-2021 Attachment 4 Wage Determinations-

Carroll, AR

6 16-JUL-2021

Attachment 5 Brand Name J&A- Dupont Nomex 410

2 05-APR-2021

Attachment 6 Brand Name J&A- Iris Power Engineering Model

PDA-IV

2 05-APR-2021

SECTION 00 10 00 - SOLICITATION

CLIN 0005

This CLIN has been renumbered to CLIN 0025.

The option status has changed from No Status to Option.

CLIN 0006

This CLIN has been renumbered to CLIN 0026.

The pricing detail quantity has increased by 1.00 from 1.00 to 2.00.

CLIN 0007

This CLIN has been renumbered to CLIN 0005.

CLIN 0008

This CLIN has been renumbered to CLIN 0006.

CLIN 0009

This CLIN has been renumbered to CLIN 0007.

CLIN 0010

This CLIN has been renumbered to CLIN 0008.

CLIN 0011

This CLIN has been renumbered to CLIN 0009.

CLIN 0012

This CLIN has been renumbered to CLIN 0010.

CLIN 0013

This CLIN has been renumbered to CLIN 0011.

CLIN 0014

This CLIN has been renumbered to CLIN 0012.

CLIN 0015

This CLIN has been renumbered to CLIN 0013.

CLIN 0016

This CLIN has been renumbered to CLIN 0014.

CLIN 0017

This CLIN has been renumbered to CLIN 0015.

CLIN 0018

This CLIN has been renumbered to CLIN 0100.

The CLIN type priced has been deleted.

The CLIN description has changed from New Machine Condition Monitoring System to DELETED:

Condition Monitoring System.

The CLIN extended description has changed from:

Furnish and Install Complete New Machine Condition Monitoring System

To:

CLIN DELETED: Furnish and Install Complete New Machine Condition Monitoring System The pricing detail quantity 2.00 has been deleted.

The unit of issue Job has been deleted.

The FOB Destination has been deleted.

The PSC code Z2QA has been deleted.

The PROG code C20 has been deleted.

The WSC Equipment code 000 has been deleted.

The NAICS code 335312 has been deleted.

The MDAP/MAIS Code 000 has been deleted.

CLIN 0019

This CLIN has been renumbered to CLIN 0027.

CLIN 0020

This CLIN has been renumbered to CLIN 0016.

The CLIN description has changed from Refurbish Turbine Guide Bearing (Includi to Refurbish Turbine Guide Bearing.

The CLIN extended description has changed from:

Refurbish Turbine Guide Bearing (Including Spare)

To:

Refurbish Turbine Guide Bearing The pricing detail quantity has increased by 1.00 from 2.00 to 3.00.

CLIN 0021

This CLIN has been renumbered to CLIN 0017.

CLIN 0022

This CLIN has been renumbered to CLIN 0028.

CLIN 0023

This CLIN has been renumbered to CLIN 0029.

CLIN 0024

This CLIN has been renumbered to CLIN 0030.

CLIN 0025

This CLIN has been renumbered to CLIN 0031.

CLIN 0026

This CLIN has been renumbered to CLIN 0018.

SUBCLIN 0026AB

This SUBCLIN has been renumbered to SUBCLIN 0018AA.

SUBCLIN 0026AC

This SUBCLIN has been renumbered to SUBCLIN 0018AB.

SUBCLIN 0026AD

This SUBCLIN has been renumbered to SUBCLIN 0018AC.

SUBCLIN 0026AE

This SUBCLIN has been renumbered to SUBCLIN 0018AD.

SUBCLIN 0026AF

This SUBCLIN has been renumbered to SUBCLIN 0018AE.

SUBCLIN 0026AG

This SUBCLIN has been renumbered to SUBCLIN 0018AF.

SUBCLIN 0026AH

This SUBCLIN has been renumbered to SUBCLIN 0018AG.

SUBCLIN 0026AJ

This SUBCLIN has been renumbered to SUBCLIN 0018AH.

SUBCLIN 0026AK

This SUBCLIN has been renumbered to SUBCLIN 0018AJ.

CLIN 0027

This CLIN has been renumbered to CLIN 0019.

CLIN 0028

This CLIN has been renumbered to CLIN 0020.

CLIN 0029

This CLIN has been renumbered to CLIN 0021.

CLIN 0030

This CLIN has been renumbered to CLIN 0022.

CLIN 0031

This CLIN has been renumbered to CLIN 0023.

CLIN 0032

This CLIN has been renumbered to CLIN 0024.

The following Delivery Schedule Item has been deleted from CLIN 0005:

DELIVERY DATE QUANTITY SHIP TO ADDRESS DODAAC /

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

FOB: Destination

967261

The following Delivery Schedule Item has been deleted from CLIN 0006:

CAGE

715 dys. ANP 1 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0007:

CAGE

715 dys. ANP 1 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0010:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0012:

CAGE

715 dys. ANP 1 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0014:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0016:

CAGE

715 dys. ANP 1 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0017:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule for CLIN 0018 has been deleted:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0020:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0021:

CAGE

715 dys. ANP 3 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0022:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule for CLIN 0023 has been added:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0024:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule for CLIN 0026 has been added:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0028:

CAGE

715 dys. ANP 1 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule for CLIN 0029 has been deleted:

CAGE

715 dys. ANP 2 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following Delivery Schedule Item has been deleted from CLIN 0030:

CAGE

715 dys. ANP 136 BEAVER POWER PLANT

774 DAM SITE RIVER

EUREKA SPRINGS AR 72631

The following have been added by full text:

AMD02- RFI RESPONSES

Bid Inquiry Contractor Report All Inquiries

Project: BVPH Generator Rewinds (P2 - 492898) Review: Bidder Inquiries (00001) (sorted by CommentID )

Displaying 30 inquiries.

Id Discipline Sheet Detail Spec

9273332 Contracting Site Visit

Comment Classification: Controlled Unclassified Information (CUI)

Are there any spare coils and spare stator core laminations available for measurement during the site visit?

On: Jun 09 2021.

Government Response. . Spare coils are available at the Powerhouse. Spare laminations are not available. On: Jul 27 2021

Current Request Status: Request Closed

Information for this report is procurement sensitive.

9284400 Project

Management Section 01 32

16.01 section 1.3.1

Comment Classification: Controlled Unclassified Information (CUI)

The specification refer to ENG Form 2454. Could this form be shared?

On: Jun 16 2021.

Government Response. . HDC has provided this link:

https://www.mvm.usace.army.mil/Portals/51/docs/contracting/forms/eng 2454.pdf On: Jul 28 2021

Current Request Status: Request Closed

Information for this report is procurement sensitive.

9284402 Project

Management Section 01 32

16.01 section 1.3.1

Comment Classification: Controlled Unclassified Information (CUI)

This section request to have the schedule cost loaded. Should the proposal schedule limited to 75 activities be cost loaded or only the project schedule?

Government Response. . The requirement is only for the construction progress chart after award. the proposal has separate requirements identified under the source selection plan. On: Jul 27 2021

9284409 Commissioning Section 48 13

13.02 26 section 3.13.6

Comment Classification: Controlled Unclassified Information (CUI)

Can the USACoE clarify who is responsible for the wet commissioning?

Government Response. . The wording for 3.13.6 has been updated to make this more clear. Look for the revised section on SAM alongside Amendment 0002. On: Jul 27 2021

9284415 Project

Management Section 00 10 00

PRICING

SCHEDULE

Comment Classification: Controlled Unclassified Information (CUI)

Could the USACoE clarify if CLIN006 has a quantity of 1 or 2?

Government Response. . CLIN 0006 should have a quantity of 2. This will be corrected in Amendment 0002. On: Jul 27 2021

9284421 Mechanical Section 01 10 10 section 1.11.1

Comment Classification: Controlled Unclassified Information (CUI)

Can the USACoE confirm if the contractor is responsible to provide the draft tube gates and where is it specified?

Government Response. . There is no draft tube gate work required. On: Jul 27 2021

9284423 Mechanical 01 10 10 Para. 1.8.1 & 1.12.3 / Page 4 & 6 (80 &

82/509)

Please confirm that all below-the-hook lifting devices (as rotor lifting device and pole tilting/lifting device for example) required for the work shall be furnished by the Contractor and shall then be turned over to the Government upon completion of this contract.

If yes, please confirm that drawings and calculations related to the new below-the-hook lifting devices shall be stamped by an Arkansas PE.

Finally, if new below-the-hook lifting devices shall be provided, please confirm the related bid item in the pricing schedule.

Government Response. . The contractor will be given access to the powerhouse bridge crane, associated lifting beam, and combined rotor & shaft lifting device for the purpose of this rewind. All other lifting devices and accessories will be supplied by the contractor. On: Jul 27 2021

9285873 Contracting Page 14 of 65 Section 00 22 16

Comment Classification: Controlled Unclassified Information (CUI)

Proposal factor 1 is limited to 10 pages, but with the required information for the proposal 10 pages are not enough, please allow minimum 25 pages for this factor.

Government Response. . The page limit for Factor 1 will be increased to 25 pages. See Amendment 0002. On: Jul 27 2021

9285875 Contracting Page 15 of 65 Section 00 22 16

Comment Classification: Controlled Unclassified Information (CUI)

The Gantt chart schedule is limited to no more than 75 individual items/tasks, but with the required information to be indicated in the proposed schedule of the 2 units, 75 items are not enough, please allow at least 100 items/tasks.

Government Response. . The Gantt Chart schedule shall be limited to no more than 125 individual items/tasks. See Amendment 0002. On: Jul 27 2021

9286396 Project

Management 48 13 16.00 26

Para. 1.3 / Page 6 (449/509)

Please confirm that procedures for the core replacements (base scope) shall be provided within 30 calendar days after receipt of written notice to proceed (NTP) considering that we have 150 calendar day to provide procedures for the rewinds also in base scope.

On: Jun 17 2021.

Government Response. . Procedures for the core replacement are required within 30 calendar days after receipt of written notice to proceed with the core replacement. On: Jul 27 2021

9289100 Contracting 1/65 W9127S21R0006

Comment Classification: Controlled Unclassified Information (CUI)

We respectfully request proposal extension due date to August 25th, 2021 and a Q&A Extension until August 6th, 2021 based upon the following:

1. The high volume of bidding opportunities currently in the market;

2. The summer Holiday season;

3. The lack of information due to documentation/drawings quality.

On: Jun 18 2021.

Government Response. . The proposal deadline was extended to August 4, 2021, via Amendment 0001, which was issued July 9, 2021. The Government does not anticipate extending further. On: Jul 27 2021

9289550 Contracting ! of 65 Site Visit W9127S21R0006

Comment Classification: Controlled Unclassified Information (CUI)

We request the USACE to consider scheduling a second site visit to collect generator data for the rewind. Due to the Covid Pandemic we were unable to schedule personnel to attend the first visit window. We expect one day will be required to take data in order to provide the USACE a Proposal for the BVBH Generator Rewinds Project. Thank you in advance for your prompt response.

On: Jun 18 2021.

Government Response. . The Government has chosen to not entertain a second site visit. On: Jul 27 2021

9294471 Specifications 48 13 16.00 26 paragraph 1.4.4

Question 1: Field test report from 1965 for Unit 1:

The technical specifications section 48 13 16.00 26 paragraph 1.4.4 mention a test report with loss and temperature rise measurements done on Unit 1 in 1965. Could the USACE share this document with the Bidders?

If not, could the USACE confirm the measured core losses and temperature rise at rated voltage, rated load and rated power factor?

On: Jun 22 2021.

Government Response. . This document will be posted to SAM alongside Amendment 0002. On: Jul 27 2021

9294474 Specifications 48 13 16.00 26 paragraph 2.3

Question 2: Uprate capacity:

The technical specifications section 48 13 16.00 26 paragraph 2.3 mention an uprated generator capacity of 73,000 kVA or higher, at 13,800 V, for a 75 degC temperature rise over 40 degC ambient.

Based on the generator nameplate and the temperature rise indicated in section 48 13 16.00 26 paragraph 1.4.4, the current generator is achieving a temperature rise of 60 degC over 40deg C ambient at 58,947 kVA at 13,800 V At a capacity of 73,000 kVA, the requested uprate is about 24% above the current capacity.

With the information we have, our current model shows that the requested temperature rise of 75 degC over 40 degC ambient cannot be met at the requested capacity of 73,000 kVA.

Has the USACE performed an uprate study to confirm that the requested uprated capacity ?

Government Response. . No uprate study has been performed. At 115% the generator rating is 67,789kVA. This is about 8% uprate. On: Jul 27 2021

9294488 Planning - Plan

Formulation Solicitation and

Instructions

Question 3: NTP and award date:

Could the USACE indicate a tentative Notice to Proceed and Contract Award date for planning purposes?

Government Response. . Contract award is tentatively scheduled for Fall 2021. On: Jul 27 2021

9294901 Electrical 01 11 00 Para. 1.1.2.2 (h) Page 2 (89/509)

Comment Classification: Controlled Unclassified Information (CUI)

01 11 00 / Para. 1.1.2.2 (h) / Page 2 (89/509) 48 13 16.00 26 / Para. 2.14.1 / Page 20 (463/509) Government Drawing no. BVG2-EW950

Could you please confirm that the neutral point CT 3000:5 indicated on drawing BVG2- EW950 (Generator 2 - Generator & Air Housing Wiring Diagram) is not required? If required, please provide the required characteristics.

On: Jun 23 2021.

Government Response. . The 3000:5 CT is not being replaced. On: Jul 27

9294904 Construction Management

Page 1 (370/509) Para. 1.1.2 48 13 13.02 26

Comment Classification: Controlled Unclassified Information (CUI)

In section 01 10 10 only Bridge Crane is allowed to use. We understood that contractor shall be allowed to use spreader beam (lifting beam) by government during execution of the contract. Kindly confirm.

Government Response. . The contractor will be given access to the powerhouse bridge crane, associated lifting beam, and combined rotor & shaft lifting device for the purpose of this rewind. All other lifting devices and accessories will be supplied by the contractor. On: Jul 27 2021

Current Request Status: Request Closed

Information for this report is procurement sensitive.

9294906 Mechanical Page 1 (408/509) Para. 1.1.1 48 13 13.06 26

Comment Classification: Controlled Unclassified Information (CUI)

The scope of work includes measurement of the existing thrust bearing shoes to determine critical dimensions for refurbishment and refurbishment of the thrust shoes (and spares) including new hardened discs in the bottom of the shoes.

How many spares thrust shoes do we need to consider in our offer?

Government Response. . There are 12 spare thrust shoes. On: Jul 27 2021

Information for this report is procurement sensitive.

9294909 Construction Management

Page 10 (418/509) Para. 3.7.4 & 3.7.5 48 13 13.06 26

Comment Classification: Controlled Unclassified Information (CUI)

A report containing the results of all as-found inspections, Thrust Bearing Shoes As-Found Inspection Report, shall be submitted including the Contractor's recommendations for refurbishment. The report shall includeall measurements and results from NDT.

The refurbishment options for the shoes are to rebabbitt followed by machining.

c. The Contractor shall submit a detailed Thrust Bearing Shoes Refurbishment Procedure a minimum of 10 calendar days prior to commencing the refurbishment work, including a detailed step-by-step babbitting procedure (if applicable) and the scaled drawing created according to Paragraph b, above.

We understood that 1st phase will be to submit as-found inspection (off-site) report of stationary thrust shoes. Government will decide the refurbishment activities i.e. re-babbitting (para. 3.7.5 & 3.7.6) based on the inspection report received at 1st phase and this will be a change order. Kindly review and confirm

Government Response. . The wording has been updated to make inspection of the thrust shoes as base and refurbishment of the thrust shoes as optional.

The optional refurbishment of the thrust shoes will depend on the results of the inspection results. On: Jul 27 2021

9294912 Mechanical Page 1 (424/509) Para. 1.1.1 48 13 13.07 26

Comment Classification: Controlled Unclassified Information (CUI)

This section governs the offsite refurbishment of the turbine guide bearing and generator guide bearing shoe set (and spare set), including packaging for shipment and shipping between the project and the Contractor's refurbishment workshop.

How many spares turbine guide bearing shell and generator guide bearing shoes do we need to consider in our offer?

Government Response. . There is one spare turbine guide bearing and 18 spare generator guide bearing shoes. On: Jul 27 2021

9294915 Mechanical Page 5 (428/509) Para. 3.3.1 48 13 13.07 26

Comment Classification: Controlled Unclassified Information (CUI)

a. The Contractor shall submit a detailed Turbine Guide Bearing Refurbishment Procedure a minimum of 30 calendar days prior to commencing work. The procedure shall include a detailed step-by-step Babbitting procedure (if applicable) including tinning method, shell and Babbitt temperatures, mandrel design, spin casting speeds, and cooling rates.

Kindly confirm that the re-babbitting activity for the turbine guide bearing refurbishment is in the base scope.

Government Response. . The turbine guide bearing is base scope. On: Jul 27

9294917 Mechanical Page 8 (431/509) Para. 3.4.1 48 13 13.07 26

Comment Classification: Controlled Unclassified Information (CUI)

The requirements governing the refurbishment of generator guide bearing pads shall apply to an entire set of pads. For the purposes of this Specification, one "set" pertains to all the pads in one guide bearing.

How many pads does the generator lower guide bearing have in one unit?

Government Response. . There are 18 shoes per unit. On: Jul 27 2021

Current Request Status: Request Closed

Information for this report is procurement sensitive.

9294921 Mechanical Page 9 (432/509) Para. 3.4.1 48 13 13.07 26

Comment Classification: Controlled Unclassified Information (CUI)

j. Replace bearing disks (if present). Discs shall be ASTM A29/A29M steel, heat treated to respect 375 to 450 BHN a contacting surface finish of 32 microinches or better. Each disc shall have a chamfer to ease installation. Lock the discs in place with four punch marks equally spaced. Machine the disc housing to clean up any surface damage.

We understood the replacement of bearing disk shall be given as a change order if its present in the bearing. Kindly confirm.

Government Response. . This work will be listed as an Option. On: Jul 27

9294929 Mechanical

(463/509)& Page 30 (473/509)

Para. 2.14.3 & Para.

3.11.2

48 13 16.00 26

Comment Classification: Controlled Unclassified Information (CUI)

Provide new carbon brushes and new constant pressure type brush holders for mounting to the existing brush rigging for each unit.

Perform brush and brush holder replacement in accordance with the approved Brush and Brush Holder Replacement Procedure. The number of brushes to be installed shall be match the number of the existing brushes and brush holders.

Kindly provide the quantity of brushes installed in the existing slip ring for each unit.

Government Response. . There are 30 brushes in each slip ring. On: Jul 27

9294938 Mechanical Page 5 (504/509) Para. 3.3.1 49 13 10.10 26

Replace the existing thrust bearing coolers with new thrust bearing oil coolers.

Could you please provide the rating of existing thrust bearing cooler or other details like inlet /outlet temperature of cooling water and cooling water flow to estimate the thrust bearing cooler?

Government Response. . Original design data for the thrust bearing oil coolers has not been found. The contractor will need to reverse engineer new coolers for the purpose of this rewind contract. The contractor will need to gather data on the existing coolers before removal (during pre-disassembly testing) and after removal (via a cooler inspection report). The new coolers will be designed to provide equal to or greater cooling capacity than the original coolers. On: Jul 27 2021

9294940 Electrical Page 37-38 (480-

481/509) Para. 3.22.1.2 48 13 16.00 26

Comment Classification: Controlled Unclassified Information (CUI)

Install surge arresters and capacitors according to manufacturer's instructions in the existing surge protection equipment cabinet without modification to the cabinet.

Could you please provide the drawing for the existing surge protection equipment cabinet?

Government Response. . Drawing(s) will be posted to SAM alongside Amendment 0002. On: Jul 27 2021

9294944 Electrical Page 14 (457/509) Para.2.6&2.7 48 13 16.00 26

Comment Classification: Controlled Unclassified Information (CUI)

Supply for installation in the stator winding of each unit twenty-four (24) 3-wire resistance temperature detectors (RTDs) suitable for operation in a Class F insulation system. Provide 100 ohm platinum RTDs (±0.12% at 0°C) with a TCR of 0.00385 ohm/ohm/°C. S

Furnish, install and make functional an RTD monitoring system for the stator RTDs and bearing RTDs. The monitoring system shall consist of a programmable automation controller SEL-2411 and an RTD module SEL-2600D... Salient features shall include but not be limit to the following:

d. Ability to monitor 12 inputs

Considering the requested number of stator RTDs per unit (24) and also the bearing RTDs, the number of inputs requested for the RTD monitoring system (12) will be insufficient.

Could you please clarify/confirm the number of requested stator RTDs and inputs for RTD monitoring system?

p.s. Currently, there are 12 stator RTDs in place (drawing no. 526D231).

On: Jun 23 2021.

Government Response. . Paragraph 2.7 d has been updated to state 24 inputs. See Amendment 0002. On: Jul 27 2021

9294947 Electrical Page 6 (351/509) Para. 3.2.3.2 26 05 00.00 26

Comment Classification: Controlled Unclassified Information (CUI)

The Contractor shall remove all bearing and bearing oil RTDs and provide new RTDs for each location and unit. Locations that are not labeled as a "spare" on the reference drawings will be wired and connected for monitoring that location's temperature. For the "spare" locations, the Contractor shall install a spare RTD in the bearing shoe/segment next to the active RTD bearing shoe/segment and spare RTDs for the bearing oil shall be placed next to the active oil bearing RTDs. The Contractor shall coordinate with the COR for placement of spare RTDs

Could you please further clarify the requirement for spare RTDs in spare locations? The available reference drawings seem to be missing this information.

Government Response. . Paragraph 3.2.3.2 has been revised for clarity. See amendment 0002. On: Jul 27 2021

9295634 Contracting Spec 1.3.1

Comment Classification: Controlled Unclassified Information (CUI)

We see that the site's work hours are Monday-Thursday, 6:30 a.m. to 5:00 p.m.

Will you allow a contractor to work seven (7) 10-hour shifts?

Government Response. . The contractor will have access to the facility 6 days a week for 10-hour days, 0630-1700 daily. On: Jul 27 2021

9295877 Contracting 1 of 65

Comment Classification: Controlled Unclassified Information (CUI)

We respectfully request a 4-week extension to the proposal due date.

Government Response. . The proposal deadline was extended to August 4, 2021, via Amendment 0001, which was issued July 9, 2021. The Government does not anticipate extending further. On: Jul 27 2021

Report Complete

The following have been modified:

PRICING SCHEDULE

Line Item No. Description Quantity

Unit of Measure Unit Price Total Price

BASE ITEMS

0001 Mobilization and Demobilization 1 Job $ $

Design, Manufacture, and Perform voltage Endurance Testing on 4 Prototype Coils 1 Job $ $

Manufacture and Perform Thermal Cycle Testing on 5 Prototype Coils 1 Job $ $

Furnish Complete Set Of Stator Coils Including Supplies and Accessories For A Complete New Winding Including Factory Testing 2 Each $ $

0005 Furnish Spare Parts 1 Job $ $

0006 Remove Stator Winding and Stator Core 2 Each $ $

0007 Furnish, Install, and Test New Stator Core 2 Each $ $

Clean and Inspect Rotor, Reinsulate Rotor Field Leads, and Test Rotor Field Windings 2 Each $ $

0009 Install and Test New Stator Winding 2 Each $ $

Perform Generator Special Field Tests - Verification Tests 1 Job $ $

Perform Start-Up, Commissioning, and Testing of the Generator 2 Each $ $

Furnish and Install General Field Wiring, RTDs, Conduit, Gauges, and Switches 2 Each $ $

Disassembly of Generating Unit Including Inspections of Components 2 Each $ $

0014 Operational Testing of Unit 1 Prior to Disassembly 1 Job $ $

0015 Reassembly of Generating Unit 2 Each $ $

0016 Refurbish Turbine Guide Bearing 3 Job $ $

Refurbish Generator Guide Bearing Shoes (Including Spares) 3 Set $ $

TOTAL PROPOSED PRICE FOR BASE ITEMS $

OPTIONAL ITEMS

0018 Miscellaneous Hires

0018AA Welding Services 50 HRS $ $

0018AB Machinist Hire 50 HRS $ $

0018AC Electrician Hire 50 HRS $ $

0018AD Painter Hire 50 HRS $ $

0018AE Millwright Hire 50 HRS $ $

0018AF General Laborer Hire 50 HRS $ $

0018AG Liquid Penetrant Method 24 HRS $ $

0018AH Magnetic Particle Method 24 HRS $ $

0018AJ Ultrasonic Method 24 HRS $ $

0019 Refurbish Brake Cylinders 2 Job $ $

0020 Miscellaneous Parts and Materials 1 NTE $ 10,000.00 $ 10,000.00

0021 Rotor Balancing 2 Each $ $

0022 Rotor Pole Refurbishment 136 Each $ $

0023 Thrust Runner Refurbishment 2 Each $ $

Perform Generator Special Field Tests - Determination Tests 1 Job $ $

0025 Furnish and Install Partial Discharge Analyzer System 2 Each $ $

Furnish, Install, and Make Functional Stator RTDs Monitoring System 2 Each $ $

0027 Replacement Hardened Discs and Inserts 2 Set $ $

0028 Refurbish Thrust Bearing Shoes 2 Set $ $

0029 Furnish and Install Thrust Bearing Coolers 2 Job $ $

0030 Inspect Brake System 2 Job $ $

0031 Furnish and Install New High Pressure Lift System 2 Job $ $

TOTAL PROPOSED PRICE FOR OPTIONAL ITEMS $

TOTAL PROSED CONTRACT PRICE $

SECTION 00 22 16 - SUPPLEMENTARY INSTRUCTIONS TO PROPOSERS

The following have been modified:

SUBMISSION REQUIREMENTS

SECTION 00 22 16 - PROPOSAL SUBMISSION REQUIREMENTS, EVALUATION

CRITERIA, AND BASIS OF AWARD

GENERAL REQUIREMENTS

The proposal shall describe the capability of the Offeror to perform the requirements of the Specifications. The proposal should be specific and complete in every detail; and should be prepared simply and economically, providing a straightforward and concise description of capabilities to satisfactorily perform the requirements. The proposal should be practical, legible, clear, and coherent.

In order to effectively and equitably evaluate all proposals, the Contracting Officer must receive information containing sufficient detail to allow review and evaluation by the Government. Proposal clarity, organization, and cross-referencing are mandatory. Failure to submit and organize proposals as requested may adversely affects an Offeror's evaluation.

Proposals shall not exceed the page limits described. Provide all information in bookmarked sections. Appendices and/or attachments are not permitted and will not be evaluated.

SUBMISSION FORMAT

METHOD OF SUBMISSION. Offerors shall submit one (1) electronic copy of their proposal via DoD SAFE (https://safe.apps.mil/) before the time and date specified in the solicitation (Standard Form 1442).

1. Send an email to the Contracting Officer AND Contract Specialist to receive the link to drop off your proposal. This shall be completed no later than five (5) business days prior to the proposal due date.

i. Contracting Officer: donald.p.tam@usace.army.mil

ii. Contract Specialist: sarah.n.hagood@usace.army.mil

2. You will receive an email with the link to submit your drop-off. The link will be provided no later than two

(2) business days prior to the proposal due date.

3. Once in DoD SAFE, please add your files in accordance with the File Format section below. Please add ‘W9127S21R0006- Firm Name’ in the Short Note to the Recipients box.

4. Add the Contracting Officer AND Contract Specialist as recipients.

5. Ensure everything is correct, and then click “Drop-off Files” to send.

Should DoD SAFE be unavailable, proposals may be submitted via Compact Disk (CD) and delivered to

US Army Corps of Engineers ATTN: Sarah Hagood Solicitation W9127S21R0006 700 West Capitol Avenue Little Rock, AR 72203

FILE FORMAT. Files shall be in Portable Document Format, filename extension: “.pdf” and suitable for viewing in Adobe Reader. There shall only be three files in each Offerors’ submission: ‘W9127S21R0006- Firm Name- Volume I, Technical Submission,’ W9127S21R0006- Firm Name- Volume II, Small Business/Subcontracting Submission’ and ‘W9127S21R0006- Firm Name- Volume III, Price Submission.’

FONT SIZE. Shall not be less than 10 point. Each page shall be identified with the appropriate page number centered at the bottom of the page.

SHEET SIZE. Shall be 8-1/2 inches x 11 inches; however, if drawings, charts, or other graphics are submitted, sheets no larger than 11 inches x 17 inches shall be used. Sheets which are 11 x 17 inch will be counted as two 8-1/2-inch x 11-inch sheets. All sheets shall be dated and numbered.

COVER SHEET & TABLE OF CONTENTS. Proposals shall consist of three (3) volumes. A cover sheet identifying the Offeror (name, address, point of contact) and solicitation number shall be provided. The second sheet shall be a table of contents. The proposal shall contain a detailed table of contents. Offers violating these rules unnecessarily delay the evaluation process and may be rejected by the Government after the initial evaluation without receiving any further consideration. Neither the cover sheet nor the table of contents count toward the page limitations.

BOOKMARKS. Proposals shall be bookmarked and labeled as specified in a manner to afford easy identification from the Table of Contents. Additional bookmarks may be provided but shall be nested under the appropriate tab bookmark.

HYPERLINKS. Hyperlinks are not permitted. This includes hyperlinks within the document, such as Figure or Table references to the page containing content, and hyperlinks to websites.

ATTACHMENTS. Attachments/appendices are not permitted.

PAGE LIMITS. The proposal shall not exceed the specified page limits. The Government will not review any information in excess of the page limits or information submitted in an appendix or attachment to the proposal. The Offeror shall not submit verbatim sections of this solicitation as part of their proposal. Offers not meeting these requirements may be subject to rejection.

SUBMISSION REQUIREMENTS

Offerors shall submit their proposals in accordance with the following:

VOLUME I:

BOOKMARK A— Standard Form 1442 and Proposal Data Sheet (Attachment A). Proposal must include Offeror’s telephone number, FAX number, email address, and DUNS number. DUNS number will be used to access CPARS Data.

BOOKMARK B – Factor 1 – Technical Approach BOOKMARK C – Factor 2 – Schedule BOOKMARK D – Factor 3 – Past Performance

VOLUME II:

BOOKMARK A — Small Business Participation Plan BOOKMARK B — Subcontracting Plan

VOLUME III:

BOOKMARK A — Price Schedule BOOKMARK B — Offer Guarantee

FACTOR 1 – TECHNICAL APPROACH (VOL 1, BOOKMARK B)

SUBMISSION REQUIREMENT: Factor Page Limit – Twenty-five (25) pages. The Offeror shall submit information for Stator Winding Losses, Stator Winding Manufacturing and Installation Process, and Stator Core Manufacturing and Installation Process as outlined below:

Stator Winding Losses The Offeror shall submit a guaranteed combined I2R (R corrected to 75 C), total stray load, and open circuit core losses for the rewound generator in “kW’ at 67,78kVA, 0.95 power factor.

Stator Winding Manufacturing and Installation Process The Offeror shall submit a complete description in narrative form of their stator winding manufacturing and installation process.

The Stator Winding Manufacturing Narrative shall include the following details:

1. Coil insulation system, including strand, turn and ground-wall insulation material and thickness.

2. Cross sectional dimensions.

3. Designed dielectric stress of the ground-wall insulation at rated voltage.

4. Ground-wall insulation application method (hand-wound, machine wound with/without scarf joint, etc.)

The Stator Winding Installation Narrative shall include the following details:

1. Side packing system.

2. Wedging system – including type, dimensions, and materials of wedges, total number of wedges per slot, number of check wedges per slot and end wedge securing method.

3. Spring deflection measurement method.

4. Brazing method.

5. Quality assurance procedures

Stator Core Manufacturing and Installation Process The Offeror shall submit a complete description in narrative form of their stator core manufacturing and installation process.

The Stator Core Manufacturing Narrative shall include the following details:

1. Type of steel (high grade non-aging silicon steel).

2. Lamination manufacturing method.

3. Burr control.

4. Lamination coating process.

5. Insulation.

The Stator Core Installation Narrative shall include the following details:

1. Key bar placement determination.

2. Lamination stacking process and alignment.

3. Final core pressing and clamping.

4. Final core alignment checks.

5. Measurements of circularity, concentricity, and verticality.

EVALUATION CRITERIA – The proposal will be evaluated to determine the extent to which it:

- Demonstrates an understanding of technical specification Section 48 13 16.00 26.

- Demonstrates an acceptable combined I2R, total stray load, and open circuit core losses.

- Demonstrates detailed, complete narratives for Stator Winding and Stator Core manufacturing and installation.

FACTOR 2 – SCHEDULE (VOL 1, BOOKMARK C)

SUBMISSION REQUIREMENT: Provide a schedule in Gantt chart format using the critical path method (MS Project 2007 or Primavera P6 software) showing a planned schedule to complete the project including: the design;

procurement of major supplies; manufacturing; transportation; on-site demolition, on-site assembly/erection; on-site testing; and commissioning of equipment. The schedule shall also include on-site mobilization and demobilization, any identified work windows, critical submittals, interim milestones, and contract completion date. Limit the Gantt chart schedule to no more than 125 individual items/tasks. The schedule must:

1. Be graphically represented, task oriented and meet the proposed contract duration.

2. Provide enough detail to demonstrate an understanding of the requirement including any constraints which can be anticipated (e.g. labor or material availability, permits, weather, etc.).

3. Show planned sequencing of major activities and phases (e.g. design, procurement, fabrication, permitting activities, disassembly, cutover and temporary power (as applicable), construction, and commissioning) for completing the project.

4. Be in Calendar days with appropriate logic and task duration

5. Show overall construction phase for major item(s) such as: site work, design, procurement, fabrication, permitting activities, disassembly, construction, and commissioning.

6. Show milestones to include the completion of each generator rewind.

8. Show turnover of the project as well as any proposed phased turnovers (if applicable). NOTE: The time to complete the project and turnover to the Government must consider the requirement for the Contractor’s CQC completion inspection and the subsequent joint Contractor-Government turnover inspection

9. Clearly identifies any float in the schedule

10. Shows the duration by total calendar days from Notice to Proceed (NTP) to the completion of all work

EVALUATION CRITERIA – The proposal will be evaluated to determine the extent to which it:

-Demonstrates the Offeror’s overall understanding of the Scope of Work by clearly identifying the major tasks in a logical sequence and identifying critical path items.

-Demonstrates the Offeror’s schedule is realistic considering the schedule constraint contained in FAR Clause 52.211-10 – Commencement, Prosecution, and Completion of Work (APR 1984).

FACTOR 3 – PAST PERFORMANCE (VOL 1, BOOKMARK D)

SUBMISSION REQUIREMENT: The Offeror shall submit information on up to five (5) projects to demonstrate the organization's/team’s recent and relevant experience. Information shall be submitted utilizing the template found as Attachment B below.

Project Narratives shall:

1. Be no more than five (5) pages per project.

2. Only include projects completed up to 10 years prior to the date of this RFP OR projects currently under contract where at least one (1) unit has been installed and completed as of the date of proposal submission under this RFP. Project Completion dates shall be part of submission package.

3. Include design, manufacturing, installation and testing of complete stator windings and stator cores for hydroelectric generators of at least 30,000kVA and 13.8kV.

4. Have the same or similar insulation system as the proposed to be supplied under this solicitation.

5. Be of separate design and/or location (i.e., not three (3) contracts in one powerhouse).

6. Two (2) projects must include a stator core replacement.

7. Two (2) projects must include multi-turn coil stator winding construction.

8. Include machine ratings of the rated kVA, kW, KV of the generator and stator winding temperature rise.

For each submitted project, the Offeror shall request a Past Performance Questionnaire (PPQ), found as Attachment C below, from those Government agencies or private sector companies’ Point of Contact identified for each project.

These agency or company contacts must have detailed information concerning the performance of the project in order to accurately complete the PPQ for the Offeror. The POCs may be contacted by the SSEB to assess the scope of work performed and to evaluate performance of the projects listed under the previous experience tab of this volume, if necessary; therefore, it is imperative to ensure correct telephone and email addresses are identified for the client POCs on each PPQ. Completed Past Performance Questionnaires shall be submitted with your proposal if they are able to be received from the POC prior to the proposal due date. Offerors shall follow-up with clients/references to ensure timely submittal of questionnaires. If the Offeror’s client requests, he/she may submit the questionnaire directly to the Contract Specialist, Sarah Hagood at Sarah.N.Hagood@usace.army.mil prior to proposal closing date.

PPQs previously completed by the example project's POC may be submitted in lieu of requesting the POC to re-complete the form; however, Offerors shall not incorporate by reference into their proposal PPQs previously submitted for other RFPs. However, this does not preclude the Government from utilizing previously submitted PPQ information in the past performance evaluation.

NOTE: For Department of Defense (DoD) projects, the Offeror need not submit a copy of the Contractor Performance Assessment Reporting System (CPARS) Evaluations (ACASS & CCASS) for each DoD project; instead, provide written notification current ratings are available for the Government to evaluate. CPARS evaluations shall not be submitted by the Offeror in place of a PPQ.

TEAMING ARRANGEMENTS AND JOINT VENTURES. Provide a copy of the teaming/joint venture agreement. Offerors may submit experience of an affiliated entity where the affiliated entity has made a firm commitment to participate meaningfully in the performance of the contract. If required, JV approval must be obtained in accordance with Small Business Administration policy.

EVALUATION CRITERIA: There are two aspects to the Government’s past performance evaluation: relevancy and quality of performance. The Government will first evaluate how relevant the past performance is to the work required by these specifications and then the Government will evaluate how well the Offeror performed on the submitted projects. In doing this, Government will use the relevancy and confidence ratings discussed below.

In addition to the PPQs, the Government may review and consider any other sources of information for evaluating past performance. Other sources may include, but are not limited to, past performance information retrieved through the Past Performance Information Retrieval System (PPIRS), including Contractor Performance Assessment Reporting System (CPARS), using all CAGE/DUNS numbers of team members (partnership, joint venture, teaming arrangement, or parent company/subsidiary/affiliate) identified in the Offeror’s proposal, inquiries of owner representative(s), Federal Awardee Performance and Integrity Information System (FAPIIS), Electronic Subcontract Reporting System (eSRS), and any other known sources not provided by the Offeror (including information from Government personnel and databases).

While the Government may elect to consider data from other sources, the burden of providing detailed, current, accurate and complete past performance information rests with the Offeror.

The Government intends to assess the relative risks associated with the Offeror’s performance based on the past performance information provided in the proposal and, if applicable, information obtained from available sources identified previously. A significant achievement, unexplained or unresolved problem, or lack of relevant data may significantly impact the risk rating by the Government. Therefore, it is incumbent upon the Offeror to include all relevant information, including demonstrated corrective actions, in its proposal.

In addition to the project information requested in this section, the Offeror shall also provide notification and information concerning any projects where it’s right to proceed was terminated for the convenience of the Government or for default/cause during the last five (5) years, or so state that there were none. If any contracts were terminated, whether for convenience or default/cause, the Offeror shall list each, providing the contract number, title, brief type of work effort, and the reason for the termination.

NOTE: Although the SSEB may not rate an offeror that lacks recent, relevant past performance favorably or unfavorably with regard to past performance, the SSAC may recommend, and the SSA may determine, that a

"Substantial Confidence" or "Satisfactory Confidence" past performance rating is worth more than a "Neutral Confidence" past performance rating in the best value tradeoff as long as the determination is consistent with stated solicitation criteria.

SMALL BUSINESS PARTICIPATION PLAN (VOL 2, BOOKMARK A)

SUBMISSION REQUIREMENT: The purpose of this criterion is to evaluate the amount of work to be performed by small businesses as a prime contractor or subcontractors in relation to the total value of the project, as well as the types of work small businesses will be performing, and the Offeror’s past performance complying with contract requirements contained in clauses FAR 52.219-8, Utilization of Small Business Concerns and FAR.52.219-9, Small Business Subcontracting Plan.

1. All Offerors (both large and small businesses) shall submit a Small Business Participation Plan (SBPP, Attachment D) to identify the extent to which small businesses will participate in the performance of the proposed acquisition.

a. Large businesses may achieve the small business participation goals through subcontracting to small businesses.

b. Small business prime contractors may achieve small business participation goals through their own performance/participation as a prime contractor and also through subcontracting to other small businesses.

A mandatory minimum Total Small Business Participation goal of 5% of the total contract value (through small business participation from small, small disadvantaged, HUBZone, Service-Disabled Veteran Owned, Veteran Owned, or Woman Owned small businesses) is required based on the nature of the work for this project. The Offeror should articulate how small businesses will participate through performance as either a small business prime contractor or as a subcontractor, as well as demonstrating their past performance in complying with requirements of the clauses at FAR 52.219- 8, Utilization of Small Business Concerns and 52.219-9, Small Business Subcontracting Plan.

2. Submit information on up to three (no less than one) project(s) which demonstrates the degree (both by dollar and by percent of total contract value) to which the contractor utilized small business firms in performing the project.

For small business Offerors, consideration will be given to self-performance if a small business for a project, as well as for providing subcontracting opportunities to small businesses—as is the policy of the Government.

For large business Offerors, in addition to the submitted project information, consideration may also include review of ISRs (Individual Subcontract Reports) and SSRs (Summary Subcontract…