Amendment W912WJ25Q0038-0003.pdf

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Attached to
Spillway Dam Gallery Paint Removal, Buffumville Lake, Charlton, MA
Solicitation number
W912WJ25Q0038
Issued by

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This is Amendment 0003 to solicitation W912WJ25Q0038, issued by the US Army Corps of Engineers New England District, which provides responses to 21 industry questions regarding paint removal and sealing work at Buffumville Lake dam in Charlton, MA. The closing date remains March 12, 2025 at 5:00 PM Eastern.

Key clarifications include: complete paint removal from concrete is not required but should remove as much as possible; existing paint is 1-2 coats of unknown type; metal coating requirements reference spec 09 97 02; detailed quantities of metal items are provided; silane-siloxane penetrating sealer is required rather than film-forming coating; the space is not considered confined but contains radon; staging is permitted on both Gale Road and office sides; filtered pressure washing water may drain to river; and the warranty excludes existing wall leaks since the sealer's intent is dust prevention only. The amendment also clarifies that SSPC QP2 certification referenced in spec section 1.5.4 is not included in the solicitation requirements.

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Other files

File Type Posted
Amendment W912WJ25Q0038-0004.pdf PDF
As Built.pdf PDF
Amendment W912WJ25Q0038-0002.pdf PDF
Amendment W912WJ25Q0038-0001.pdf PDF
Specifications.pdf PDF
Solicitation W912WJ25Q0038.pdf PDF

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SEE SCHEDULE

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 is necessary to provide responses to questions from industry. Questions/responses #9-21 are applicable to this amendment.

Closing remains March 12, 2025 at 5:00 PM Eastern.

All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 5

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

16C. DATE SIGNED

BY 06-Mar-2025

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 W912WJ25Q0038

X 9B. DATED (SEE ITEM 11)

20-Feb-2025

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

06-Mar-2025

CODE

U S ARMY ENGR DISTRICT, NEW ENGLAND

696 VIRGINIA RD

CONCORD MA 01742-2751

W912WJ 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

jennifer.m.samela@usace.army.milEMAIL:978-318-8324TEL:

JENNIFER M SAMELA / ADDED BY UPASS

W912WJ25Q0038

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been modified:

REQUEST FOR INFORMATION

QUESTION 1: The specifications call for complete removal of existing coatings through abrasive blasting, which is achievable, but the word complete could result in more damage of the concrete substrate than required to blast off adherent coatings. Please confirm that the intent is to remove all coatings (adherent and non-adherent) from the concrete substrates.

RESPONSE 1: “Complete” removal of paint on concrete is not a requirement. Interested vendors are directed to the requirements stipulated in the Statement of Work paragraph A.2.a bullet #1, paragraph A.2.b, paragraph A.2.j and k. The intent is to remove as much of the existing coatings as possible. The Technical Point of Contact should be consulted in areas of uncertainty. Any damages to the concrete as a result of paint removal shall be repaired by the Contractor.

QUESTION 2: What is the existing coating system and thickness?

RESPONSE 2: The gallery, floors, stairs, and lower basement are currently painted with approximately one or two coats of paint. The exact paint type is unknown. Visual observation of the existing paint does not indicate it to be thick layer of coating like Tnemec or equivalent.

QUESTION 3: There is not a steel coating system referenced in the 09 97 02 spec section and the only surface preparation is SP-1. Please advise on a steel/ferrous metal coating system.

RESPONSE 3: Salient characteristics for epoxy primer/sealer for steel/metal coating is called out on Specification Section 09 97 02, paragraph 2.1 and all its sub-paragraphs.

QUESTION 4: The summary for 09 97 02 spec section has all included stair railings, stair nosing, floor drain grates and fames, floor covering plate and frames, and related items. Please provide more details and/or quantities of these ferrous steel items as there are no limits or quantities provided in the solicitation.

RESPONSE 4: The metal items are called out in the as-built references TH-1-1304 and TH-1-1306. The metal items included are only within the gallery and lower basement work areas as described in the scope of work. The metal items in the lower basement include: ceiling/crane access plate, 1 manhole, 1 grab bar above manhole, and 1 fall protection anchor. The staircase from the upper level is excluded. The metal items in the gallery include: all ceiling anchors, 4 rectangular floor grates and frames, 2 round drain grates, 4 staircase pipe railings, 1 manhole cover and frame, 1 sump pump cover, 1 sump pump valve, and 31 Wooster cast iron safety treads. All float well pipes and valves, light switches and cover plates, light fixtures, and electrical components are excluded.

QUESTION 5: There was not a specified approved concrete coatings product and only specs for a product, to allow for the most accurate pricing, please approve the attached product for concrete coatings. SW Macropoxy 5000

RESPONSE 5: The intent is for a non-film forming breathable silane-siloxane base concrete penetrating sealer/hardener. The product is a one-part aqueous solution that will be sprayed in multiple coats (2-min). The Government will not approve products during the solicitation phase.

QUESTION 6: Is the Government considering this a Confined Space?

RESPONSE 6: No, the Government is not considering this a confined space.

QUESTION 7: Do you have As-Builts for the pull bars embedded in the ceiling of the gallery? Can Contractors use them?

RESPONSE 7: The pull bar locations are detailed on record drawing included in the spec TH-1-1304. Please refer to the pull bar details 49 in the attachment TH-1-1327. Contractors that intend to use the pull bars will be required to conduct strength testing for the bars and submission of the results to the Government prior to use.

QUESTION 8: As stated in the specification it is unknown if existing coatings contain other hazardous materials beyond those locations noted for the presence of lead. Please confirm if additional hazards are found to be present, they shall be addressed through equitable adjustment.

RESPONSE 8: If additional hazards are found to be present, the Contactor shall immediately notify the Technical Point of Contact. The Government will then determine the appropriate course of action regarding the continuation of work for identified areas.

QUESTION 9: How far into the float well knock-out do you expect a Contractor to remove paint?

RESPONSE 9: There is a tank like structure in the knock out. Paint shall be removed up to the tank. The pipe is not included in the requirement.

QUESTION 10: What is the electrical system in the work area?

RESPONSE 10: 120:280V. There are 110 v plugs throughout the work limits.

QUESTION 11: Do you want the electrical conduits for emergency lighting, switch plates, etc. taken off to remove paint/reseal?

RESPONSE 11: Removing the conduits, switch plates, etc is not required, but the Contractor is able to remove and replace for ease of work if preferred.

QUESTION 12: Can staging be on the Gale Road side of the dam?

RESPONSE 12: Staging is permitted on the Gale Road side of the dam, however, this is part of the disc golf course and there may be pedestrians in the area. Preferred staging area is on the office side of the dam in the staging area described in the solicitation. There is a lower potential for interference/disturbance of equipment and materials in the designated staging area.

QUESTION 13: Is there an alarm system in this building that may be vulnerable to the nature of the work included in the solicitation? Can you provide the company so we can get a quote in case services are needed?

RESPONSE 13: The Government will put the alarm system on standby if required. The awarded Contractor is not responsible for any work or requirements regarding the alarm system. The Government shall be responsible for any needs associated with the alarm system.

QUESTION 14: Can the Contractor use the ceiling hatch access to bring equipment in and out of the gallery?

RESPONSE 14: Yes, the awarded Contractor is able to use the access, however, the chain fall on the top floor is not operational. The Contractor would be required to supply and use their own hoist to raise and lower equipment through the hatch. The Contractor would also be required to have a qualified person inspect the beam before use.

Beam capacity is 2 tons.

QUESTION 15: Can the water from the pressure washer be released into the drains if it is filtered?

RESPONSE 15: The drains release directly into the river. Clean, filtered water that is confirmed to not contain debris and/or chemicals may be released into the drains.

QUESTION 16: Does water get into the gallery through the cracks?

RESPONSE 16: Yes, water does occassionally leak through the cracks in the walls during rainstorm events. The volume of water depends on the the amount of rain and the wind direction.

QUESTION 17: How long does gate operation take?

RESPONSE 17: Should coordination be required for staff to operate the gates, it typically takes approximately two

(2) minutes for operation.

QUESTION 18: Are there any gases that Contractors need to be concerned about in the operation gallery?

RESPONSE 18: Yes, radon is present in the lower levels of the structure.

QUESTION 19: The fixtures and light switches present in the gallery are bomb proof. Does the Contractor’s equipment need to be bomb proof as well?

RESPONSE 19: No, Contractor’s equipment is not required to be bomb proof.

QUESTION 20: With the project spec being 09 97 02 Painting: Hydraulic Structures, section 1.5.4 Qualified Hazardous Paint Removal Contractor states:

The Painting Contractor must be a certified SSPC QP 2 [Category A][Category B] Painting Contractor for all surface preparation or coating application. Submit a copy of the applicable SSPC Certificate. The contractor must have been certified prior to award of this contract and must remain certified for the duration of this contract. Submit all renewals if they occur during the contract performance period. Renewals must be achieved prior expirations occurring.

We ask that clarification be made, and stated to be included in the solicitation requirements, that the contractor/personnel performing the work must be SSPC QP 2 certified.

RESPONSE 20: The awarded Contractor is required to adhere to the Specification 09 27 02 PAINTING AND PAINT REMOVAL as included with this solicitation. Section 1.5.4 Qualified Hazardouse Paint Removal Contractor is not included in the specification as provided with the solicitation.

QUESTION 21: During a site visit, it was made mention of existing leaks. We ask that the Section I Material Warranties includes : warranty period to exclude any failure, defects, or damages caused by any existing active leaks with the exclusion of the active leak noted in section 1 a. and 1 p.

RESPONSE 21: The Contractor shall be held to all requirements of FAR Clause 52.246-21 and the materials warranty as specified in the solicitation as the Statement of Work Paragraphs A.2.a and A.2.q stipulate the project intent is for penetrating sealer/hardener to be applied to the exposed/bare concrete surfaces that have been previously painted to stabilize and minimize potential for future dusting. The warranty should only be invoked if the construction does not meet the intent of the project/design. In this case, the stated intent of the penetrating sealer is to prevent the exposed previously painted concrete surface from dusting. It is not the intent of this sealer to act as barrier to prevent the wall from leaking.

(End of Summary of Changes)

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