Solicitation Amendment W912P725BA0050004 SF 30.pdf

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.

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 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

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)

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.)

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

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE OF PAGES

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

6. ISSUED BY CODE 7. ADMINISTERED BY (If other than Item 6) CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X) 9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

FY25 PETALUMA RIVER AND ATF CHANNEL MAINTENANCE DREDGING

AS OF: August 6, 2025

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P725BA005

The intent of this section is to provide questions & comments received from interested parties on the above solicitation, and our responses to those questions and comments. It is possible that the information below does not reflect 100% of the questions and responses. The questions and comments do not necessarily represent questions received from any particular contractor.

Questions and responses are provided for information only and are not made part of the solicitation. Only a formal amendment (SF30) to the solicitation changes the solicitation.

Changes to any previous responses in this document will be struck-through and new, updated responses will be provided appropriate

RFI # SPEC SECTION/DRAWING RFI QUESTION RESPONSES

1 Sediment proposed for dredging from composite Sample Areas 1,2,3,4, and 6 is suitable for placement at Cullinan Ranch Restoration Project (CRRP). Suitability was determined based, in part, on Mercury levels and discussions wit US Fish and Wildlife Service.

Sampling core PET-2024-8-3 from station 29+00 to 39+00 is suitable for disposal at MWRP as foundation material, but it is not suitable for disposal at Cullinan Ranch Restoration Site.

2 Topic:

Section:

Sediment proposed for dredging from composite Sample Areas 1,2,3,4,5, 6, 7 and 9 is suitable for Montezuma Wetlands Restoration Project (MWRP as cover material.

All material from Sample Areas 1 through 9 is suitable for use as cover material at the MWRP, except for the sediment between STA 29+00 and STA 39+00 (area around sampling core PET-2024-8- 3). This specific sediment may still be sent to the MWRP, but only for use as foundation material—not as cover.

FY25 PETALUMA RIVER AND ATF CHANNEL MAINTENANCE DREDGING

AS OF: August 6, 2025

QUESTIONS & RESPONSES

SOLICITATION NUMBER W912P725BA005

3 Topic:

Section:

Sediment proposed for dredging from the area around sampling core PET – 2024-8-3 is suitable for placement at MWRP as foundation.

All material from Sample Areas 1 through 9 is suitable for use as cover material at the MWRP, except for the sediment between STA 29+00 and STA 39+00 (area around sampling core PET-2024-8- 3). This specific sediment may still be sent to the MWRP, but only for use as foundation material—not as cover.

KO CONTRACTING DIVISION, 450 GOLDEN GATE AVENUE

SAN FRANCISCO, CA 94102-3406

UNITED STATES

KAREN SMITH, EMAIL: KAREN.SMITH@USACE.ARMY.MIL TELEPHONE: (415) 503-6989

AdminBy:

SCD: PAS:

ALL OTHER TERMS AND CONDITIONS REMAIN THE SAME.