Am0003.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

Amendment No. 0003

GSU Transformation Install, Fort Randall Dam, SD

See attached documentation for content of the amendment revisions

Date for receipt of electronic Proposals is 05 January 2021 at 2:00 pm (local time)

Government Point of Contact: Constance Ellard, Contract Specialist, (402) 995-2726

U.S ARMY CORPS OF ENGINEERS, OMAHA DISTRICT

CONTRACTING OFFICE

1616 CAPITOL AVE.

OMAHA, NE 68102-4901

See Item 6

W9128F21R0004

12/22/2020

10/29/2020

Am #0003 - 2 (Continuation SF 30)

22 December 2020 Solicitation No. W9128F21R0004

Date of Issue: 29 October 2020 Date of Receiving Proposals: 05 January 2021

SUBJECT: Amendment No. 0003 to specification and drawings for Construction of GSU Transformation Install, Fort Randall Dam, SD.

TO: Prospective Offerors and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications. (Descriptive Changes.)

(1) Section 01 12 00 Page 4, delete paragraph 1.8 and substitute the following:

“1.8 ORDER OF WORK

The following sequence of work is critical and must be performed during execution of this Contract. Outage work shall begin with Transformer A and proceed to Transformer B, C, and D. The Contractor is not allowed to start on a new transformer until the previous transformer is completed, commissioned, and returned to service. All other work may be performed at Contractor's discretion.”

(2) Section 01 12 00 Page 5, delete paragraph 1.9 and substitute the following:

“1.9 COORDINATION AND OUTAGES

Installation outages will take place during specific outage periods during three (3) consecutive years. The installation outage periods are follows:

Transformer A: 2 August 2021 - 29 October 2021 2-230kV Transformers (B, C or D): 2 May 2022 - 28 October 2022 1-230kV Transformer (B, C or D): 1 May 2023 - 28 July 2023

The order of Transformers B, C, and D is interchangeable. However, two 230kV Transformers must be installed, with only one (1) transformer at a time, during the 2 May 2022 - 28 October 2022 outage period. Weather permitting, on-site work not requiring an outage can occur at any point after pre-construction submittal approval and the period following end of the outage period. The order of all transformer installations must be in the Contractor’s approved schedule.

The Contractor's employees shall not open, close or tamper with switches, valves or control devices for existing installed equipment. Only Government operating personnel will be authorized to open or close existing switches, valves and control devices to enable the Contractor to make connections or modifications to existing equipment. Work shall be coordinated and scheduled to reduce the "Outage" time of operating equipment or systems to a minimum. Work in the proximity of exposed energized equipment such as in the switchyard or work involving connections to existing energized or operating equipment or systems will

Am #0003 - 3 be performed only under the Safe Clearance Procedures. The Contractor will be instructed by the Contracting Officer's Representative in the proper procedure for requesting clearances. Only qualified supervisory personnel will be permitted to request clearances.

Change request for "Outage" window extensions, or the acceleration of the 230 kV Transformer outage during the 2 May 2022 - 28 October 2022 outage window, shall be made by the Contractor to the Contracting Officer's Representative in each instance with a minimum of a 3 week written notice, in order to allow enough time to permit adjusting power plant operations, and to changes with the dispatching agency.”

(3) Section 01 30 00.24 Page 14, paragraph 1.22 Government-

Furnished Property, delete the items listed and substitute the following:

“Quantity/Item/Description/ Cost

1 - SGB 90,000/120,000kVA, 115kV GSU Transformer Unit Price $1,345,669 3 - SGB 90,000/120,000kVA, 230kV GSU Transformer Unit Price $1,415,453 Total for all 4 units = $5,592,028 “

(4) Section 02 41 00 Page 4, paragraph 1.2.3, delete subparagraphs h, I and j, and substitute the following:

“h. Underground conduit shall be considered hazardous material unless conduit is otherwise indicated in the reference drawings.

i. Removal of existing surge arrestors and surge arrestor towers. The existing surge arrestors will be reused with new transformers.

j. All transformer bushings are to be considered PCB equipment.

k. Removal of all temporary storage materials after transferring new transformers to pad. “

(5) Section 02 41 00.00 26 Page 7, paragraph 3.1.3 Existing Transformer and Transformer Ancillary Equipment Removal, subparagraph a, delete the last sentence reading: “Ship all transformers intact to an offsite facility for disassembly.” and substitute the following “It is acceptable to remove transformer control cabinets, radiators, and HV bushings on-site for the purposes of transportation off-site. Additional removals will need approval by the Contracting Officer Representative.”

(6) Section 02 82 00 Page 4, Part 1 General,

i) First subparagraph, delete “Some of the wiring which is scheduled to be removed for this project (in the transformers, mainly the heater wiring) and wiring in the manhole, is covered with asbestos-containing insulation.” and substitute “Some of the wiring which is scheduled to be removed for this project is covered with asbestos-containing insulation. The asbestos wiring is in the nitrogen bottle cabinets for heaters. The estimated sum of wire length is equal to 70 feet.”

ii) After the 2nd subparagraph add the following 3rd subparagraph:

“Asbestos Cement Conduit is in use in the switchyard conduit duct banks and the Contractor shall handle existing conduit as hazardous material.”

Am #0003 - 4

(7) Section 03 60 00.01 26 Page 2, paragraph 1.1 General Information, last sentence, after “limitations stated in Sections” add “02 82

00 ASBESTOS REMEDIATION,”.

(8) Section 44 42 52.00 26 2 Page 7, paragraph 2.3.2, delete the last sentence reading: “The predominant oil that could be present in the water is transformer insulating mineral oil type FR3.” and substitute “The predominant oil that could be present in the water is ASTM D3487 type two mineral oil. ”

b. Specifications (New). Add specification pages or sections as noted below. The new pages are issued with this amendment.

Pages or Sections Added

Cut Sheets for Bus Insulators (to be located at the end of the specifications)

c. Reference Drawings (New). The following new reference drawings are added to the request for proposal, the reference drawings are issued with this amendment.

1) Reference Sheets: Fort Randall 115kv Moloney GSU Single Phase, and Fort Randall 230kv Westinghouse GSU Single Phase.

2. This amendment is a part of the proposing papers and its receipt shall be acknowledged. All other conditions and requirements of the request for proposal remain unchanged.

a. See Section 00 22 00, paragraph PROPOSAL SUBMITTAL INSTRUCTIONS, on how to submit electronic proposals.

3. Electronic proposals will be received until 2:00 p.m., local time at place of receiving proposals, 05 January 2021.

Attachments: Cut sheets listed in 1.b above Reference drawings listed in 1.c above

U.S. Army Corps of Engineers, Omaha District 1616 Capitol Avenue Omaha, Nebraska 68102-4901

22 Dec 2020

MFS/2184

Standoff Insulators

The original insulators are no longer made by manufacturers and the Government does not have catalog cut sheets of the original insulators. The original insulators located in the tunnel have been replaced with Meister International, LLC. insulators with part number MI-HSB110 with a baseplate made by Easter-Owens. The switchyard terminal cabinets have the original insulators which are 9" in length with a 3" bolt pattern where the copper bus is bolted and a l0" bolt pattern where the insulator is bolted to the cabinet wall.

The MI-HSB110 insulator is 7-3/8" in length with a 3" bolt pattern on either side. The base plate has a 3" bolt pattern and extends out to a 10" bolt pattern. The base plate is 1-5/8" thick to make up the length difference of the existing insulator (9") and the Meister insulator (7-3/8").

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DESCRIPTION

HIGH-STRENGTH BUS INSULATOR

DIMENSIONS

HEIGHT 7.375' C187r,r,J

DIAMETER 7.00' [178MMJ

BOLT CIRCLE DIA. 3.00' [76MMJ

LEAKAGE DISTANCE 13.25' [337MMJ

MECHANICAL VALUES

TENSILE 7, 900LBS [35kNJ COMPRESSION 50,000LBS [222kNJ CANTILEVER 3,l00LBS Cl4kNJ TORSION 17,000LBS [76kNJ

ELECTRICAL VALUES

DRY w'ITHST AND <1 MIN) S0kV DRY FLASHOVER 50kV DE\./ \./ITHSTAND <10 SEC> 50kV DE\./ FLASHOVER S0kV IMPULSE \./ITHST AND + ll0kV IMPULSE w'ITHST AND - ll0kV t Meister International, LLC

P.O. BOX 338, ROSS, OH 45061 USA

PHONE• (513) 923-2712 FAX• <513) 923-1978

EMAIL• SALES@MEISTERJNTL.COM

WEB• MEISTERINTL.COM

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