Am_ 0001.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

Solicitation W912P822R0035 for Flood Control, Mississippi River and Tributaries, LA, Pointe Coupee Pump Station, Pump #1 Repairs, Pointe Coupee Parish, Louisiana ED 22-026 is hereby amended as show n on the attached pages.

Revised proposal due date is 3 June 2022 at 2:00 p.m. TIME AND PLACE CST.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 6

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

16C. DATE SIGNED

BY

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 W912P822R0035

X 9B. DATED (SEE ITEM 11)

02-May-2022

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 X is extended, 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

27-May-2022

CODE

CONTRACTING DIV- CHIEF

7400 LEAKE AVENUE, ROOM 172

NEW ORLEANS LA 70118-3651

W912P8 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P822R0035

CONTINUATION PAGE

The following items are applicable to this modification:

SECTION 00100

Page 13/265, SUBMISSION REQUIREMENTS / PROPOSAL CONTENTS / FORMAT.

Volume I, Technical. Remove 1st and 2nd bullets in its entirety and replace with “Submit One (1) Electronic Copy in PDF”.

Page 14/265, Volume II Price Proposal. Remove 1st and 2nd bullets in its entirety and replace with “Submit One (1) Electronic Copy in PDF”.

SECTION 35 45 01

Page 10, paragraph 2.1.5. MOUNTING PLATE. Remove the paragraph in its entirety and replace with the following:

“The mounting plate shall be field machined to properly mate with the gearbox spool piece per Paragraph 2.2.4 GEARBOX SPOOL AND MATING SURFACES. A rabbet fit is recommended to aid in alignment. The eight (8) existing 1" diameter drill thru and tapped holes shall be increased to allow for 2"-4.5 UNC 2B jack-bolts. Contractor shall provide the fasteners.

Grouting under the mounting plate is required. Contractor shall submit the proposed expansive, non-shrink, ultra-low creep, self-leveling epoxy grout for Government approval prior to installation.”

Page 10. Paragraph 2.1.6. LINE SHAFT. Add sentence “Couplings shall be AISI 4340 HT.”

Page 12. Paragraph 2.5.1. GEAR COUPLING WITH CUSTOM SPACER. Add the following specification:

“Magnetic particle testing shall be performed on the engine output and gearbox input shafts to verify there are no internal cracks. Contractor shall submit a written report of the testing results and equipment calibration certificate for the machine being used to test the shafts.”

DRAWINGS

Remove Drawing No. 1100P2-4 from Drawing Package Titled “Drawing 22R0035 ED-22-026 PCPS Pump 1 Repairs Plans Reference 2 of 3” and replace with attached updated Drawing No.

1100P2-4.

Add the attached Reference Drawings, File No. H-4-29072, to this contract.

QUESTIONS AND RESPONSE

1. QUESTION: We request “As Built” Drawings for the Pointe Coupee Pump Station that clearly shows the Pump Chamber Plan, Sections, Details with Dimensional Lines as well as the Outer Pump Intake Structure(s), Gates, Stop Logs, Etc. with Elevations, Water Level(s), Stop Log storage location, Pump Intake Chamber Dewatering Pump, Etc to determine the best “Means and Methods” for accessing, disassembly and reassembly of Pump #1 components.

RESPONSE: Reference attached Drawings, File No. H-4-29072.

2. QUESTION: Please provide the Capacity of the Pump Intake Chamber Dewatering Pump?

RESPONSE: 680 gallons per minute.

3. QUESTION: We request a Calendar of Additional Date(s) and Time(s) to conduct Field Survey, Dimensional Verification, Etc. These additional Dates(s) and Time(s) should be made available after the release of “As Built” Drawings outlined.

RESPONSE: Another site visit will not be scheduled at this time.

4. QUESTION: Can the QC and SSHO be wear 1 hat? If so, the 5 years’ experience as SSHO and QC, and not just a 30 OSHA cert?

RESPONSE: The SSHO and QC Manager can be one person. However, that individual must meet the qualifications for both the SSHO and QC Manager including the required experience outlined in Section 01100 GENERAL PROVISIONS and Section 01 45 04.00 10

CONTRACTOR QUALITY CONTROL .

5. QUESTION: The requirement of 3 copies of proposal is still required if the proposal is sent through the DOD Portal?

RESPONSE: Only one (1) electronic copy of the proposal is required. Section 00100 SUMISSION REQUIREMENTS / PROPOSAL CONTENTS / FORMAT Volume I and Volume II has been revised to read: “Submit One (1) Electronic Copy in PDF”.

6. QUESTION: Can you provide the Sign-In Sheet?

RESPONSE: No, USACE cannot provide the Sign-In Sheet.

7. QUESTION: Was the site visit mandatory in order to submit a proposal?

RESPONSE: Yes. Section 01100, Paragraph 4 SITE VISIT states “Due to the complex nature of this work, a site visit is mandatory for the perspective Contractor in order to view the existing conditions.”

8. QUESTION: A requirement for the Volume II portion of the proposal is a “Corporate Certificate”. Can the government please elaborate on what this is?

RESPONSE: A certificate and/or license recognizing the corporation’s firm name in the certificate.

9. QUESTION: On page 12 of 265, the Government indicates that proposals shall be submitted electronically. However, on page 13 of 265, the Government indicates that one original, three copies, and one electronic copy of Volume I should be submitted.

Additionally, on page 14 of 265, the Government indicates that one original, three copies, and one electronic copy of Volume II shall be submitted. Please clarify if the Government needs hard copies of the proposal or solely an electronic copy of both Volume I and II?

RESPONSE: Only one (1) electronic copy of the proposal is required. Section 00100 SUMISSION REQUIREMENTS / PROPOSAL CONTENTS / FORMAT Volume I and Volume II has been revised to read: “Submit One (1) Electronic Copy in PDF”.

10. QUESTION: 2.1.1. Suction Bell. The suction bell flange is casted in one piece. Are we planning on replacing the suction bell flange for optional work? Or is this only on the diffuser? Is this 0.070” clearance between the impeller blade and the wear sleeve? If suction bell is assembled in the shop with the diffuser, can we machine this wear sleeve to final dimensions in the shop? Or does this need to be done in field?

RESPONSE: Removal and replacement of the suction bell flange and technical requirements in Paragraph 2.1.2 DIFFUSER shall be included in the contract job price for “Refurbishment of Pump Assembly”. If the condition of the lower diffuser flange is determined to require repair, the Government will exercise the Optional Work Item “Refurbishment of Diffuser Lower Flange – OW”; reference Paragraph 2.1.2.1. REFURBISHMENT OF DIFFUSER LOWER FLANGE – OPTION WORK for technical requirements. The maximum acceptable clearance between the impeller blades and wear sleeve is 0.070”. Installation and machining of the wear sleeve can be performed in the shop; however, some final machining of the wear sleeve in the field could be required to achieve specified clearance between impeller blades and wear sleeve once all components are installed and aligned.

11. QUESTION: 2.1.3. Pump Column. Will these remaining parts need to be painted on site? Will the hardware have to be replaced on these remaining parts?

RESPONSE: No work shall be performed on the pump column itself. Replacement of the hardware connecting the diffuser to the pump column shall be replaced per Paragraph 2.1.2.

DIFFUSER.

12. QUESTION: 2.1.5. Mounting Plate. Will field machining be required on the base plate, to obtain a boss fit to the spool piece? Note: at the site I noticed Pump 1 mounting plate is the same as Pump 2 and has no shims underneath the 2 contact walls. On Pump 2 field machining was required to allow for grout underneath the mounting plate. Will this be required on Pump 1? Will we be allowed to drill and tap jacking holes in the mounting plate for alignment?

RESPONSE: Reference Updated Drawing 1100P2-4. Specification Section 35 45 01, paragraph

2.1.5. has been revised to read:

2.1.5. Mounting Plate

The mounting plate shall be field machined to properly mate with the gearbox spool piece per Paragraph 2.2.4 GEARBOX SPOOL AND MATING SURFACES. A rabbet fit is recommended to aid in alignment. The eight (8) existing 1" diameter drill thru and tapped holes shall be increased to allow for 2"-4.5 UNC 2B jack-bolts. Contractor shall provide the fasteners.

Grouting under the mounting plate is required. Contractor shall submit the proposed an expansive, non-shrink, ultra-low creep, self-leveling epoxy grout for Government approval prior to installation.

13. QUESTION: 2.1.6. Line Shaft. Mentions stainless steel material for couplings – Would this be the same stainless steel as used on the shaft? Type 410 Condition H?

RESPONSE: Specification Section 35 45 01, paragraph 2.1.6. has been revised to read:

“Couplings shall be AISI 4340 HT.”

14. QUESTION: 2.1.8. Impeller and Nose Cone. Will welding of the O.D. of the impeller be allowed to repair the blades? Will welding be allowed of the balancing weights to the impeller? Or will the balancing weights be required to be drilled and tapped? Will true cutting the nose cone be allowed to help with balancing of the impeller assembly?

RESPONSE: Impeller OD can be weld repaired, weights can be welded, and nose cone can be true cut.

15. QUESTION: 2.2.1. Mounting Plate Supports. Is grouting allowed between the bottom of the mounting plate and existing concrete or are hard shims required?

RESPONSE: No grouting; shims only as mounting plate supports need to be removable.

16. QUESTION: 2.2.2. Pump Column Stabilizers. Will a UT Scan be required before drilling for anchor bolts on the walls where the bump cable stabilizes?

RESPONSE: Reference Paragraph 3.3.2. PUMP COLUMN STABILIZERS. The Contractor shall use x-ray or ground penetrating radar to determine the location of the existing reinforcement for placement of the anchor bolts for the pump column stabilizers.

17. QUESTION: 2.2.3. Umbrella Platform Vertical Stands. Will UT Scan be required before drilling for anchor bolts? Will grouting be accepted between the vertical stands and the existing walls to obtain proper surface contact?

RESPONSE: Reference Paragraph 3.3.3 UMBRELLA PLATFORM VERTICAL STANDS.

The Contractor shall use x-ray or ground penetrating radar to determine the location of the existing reinforcement for placement of the anchor bolts for the wall supports. Grouting between the vertical stand and the existing walls will be acceptable. Contractor shall submit the proposed expansive, non-shrink, ultra-low creep, self-leveling epoxy grout for Government approval prior to installation.

18. QUESTON: 2.2.4. Gearbox Spool and Mating Surfaces. Will it be allowed to machine the spool surfaces to a boss male fit, to the gearbox, to help with alignment?

RESPONSE: A rabbet fit is recommended between the gearbox and the top of the spool piece, and between the bottom of the spool piece and the mounting plate to aid in alignment.

19. QUESTION: 2.5.1. Gear Coupling with Custom Spacer. Will any NDT be required after the old coupling are removed from the engine output and input shaft before new couplings are installed? To verify no cracks?

RESPONSE: Specification Section 35 45 01, paragraph 2.5.1. has been revised to read:

“Magnetic particle testing shall be performed on the engine output and gearbox input shafts to verify there are no internal cracks. Contractor shall submit a written report of the testing results and equipment calibration certificate for the machine being used to test the shafts.”

20. QUESTION: The specs call out to install an expansion joint. Currently there is a dresser coupling in place (see photo attached). Is this what they meant to request in the specs?

Photo attached.

RESPONSE: The existing coupling is a bolted, sleeve-type that can handle 1/8” of misalignment. The engine and the discharge pipe through the wall are fixed. Once the pump is realigned, the maximum displacement between the discharge elbow and fixed pipe is 1.5”.

EPDM expansion joints can handle this excessive amount lateral displacement.

21. QUESTION: The suction bell flange is called out to be replaced. From the drawings the suction bell seems to be ASTM A48 Class 40C, a gray cast iron. Is this the current material? If so, this causes difficulties when replacing (welding) with a new flange.

RESPONSE: The material specification is current.