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 theoffer 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 NUMBE

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

J 1 8

0002 21 APR 2026 0

W912P7

W075 ENDIST SAN FRAN

KO CONTRACTING DIVISION, 450 GOLDEN GATE AVENUE

SAN FRANCISCO, CA 94102-3406

UNITED STATES

LISA IP, EMAIL: LISA.I.IP@USACE.ARMY.MIL TELEPHONE: 415-503-6877

SCD: PAS:

W912P726BA001

10 APR 2026

SEE SECTION G - CONTRACT ADMINISTRATION DATA

PROJECT TITLE: SAN JOAQUIN/ STOCKTON DWSC FY26 MAINTENANCE DREDGING

PROJECT LOCATION: CONTRA COSTA, SACRAMENTO, AND SAN JOAQUIN COUNTIES, CA

The purpose of Amendment 0002 is to change the bid opening time, provide a meeting ID and passcode, and updated PART 3.5.1 of SECTION 35 20 23.

See continuation page for summary of amendment.

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

This amendment makes changes to the solicitation; these changes represent one of three types, either adding new information, deleting information, or revising existing information. Changes made by this amendment replace the previously issued sections of the advertisement, as referenced in the summary of changes below:

SECTION 00 21 00

Changed bid opening time from 01:00 pm PST on 11 May 2026 to 01:30 pm PDT on 11 May 2026 and provided Meeting ID and Passcode.

SECTION 35 20 23 – Dredging Deleted “The Contractor is to satisfy itself as to conditions of the dredged material placement sites, including all dikes, during a site inspection.” from Part 3.5.1.

(End of Summary of Changes)

Section 00 21 00

SECTION 00 21 00

INSTRUCTIONS, CONDITIONS AND NOTICES TO BIDDERS/

OFFERORS AND EVALUATION CRITERIA FOR AWARD

1 .1 GENERAL

The scope of this Invitation for Bid (IFB) is for the San Joaquin/ Port of Stockton FY26 Maintenance Dredging Project, Contra Costa, Sacramento, and San Joaquin Counties, California. The work includes maintenance dredging of the San Joaquin/ Port of Stockton River DQSC to -35-ft (MLLW) plus 1 foot of paid over depth, except the sediment trap, which shall be dredged to -38.5-ft (MLLW) plus 1 foot of paid over depth. All material is suitable for the upland sites shown on plan sheets. Dredge material may be suitable for beneficial reuses at contractor furnished sites in accordance with the permit requirement of the specific reuse sites and per the requirements in specification Section 01.11.00.

This requirement is for full and open competition and will be awarded as a single Firm-Fixed Price (FFP) contract.

1.2 BID EXPENSES AND PRE-CONTRACT COSTS

This Invitation for Bid (IFB) does not commit the Government to pay, as a direct charge, any costs incurred in the preparation and submission of a bid.

1.3 ACCURACY IN BIDS

Bids must set forth full, accurate, and complete information as required by this IFB (including attachments). The penalty for making false statements is prescribed in 18 U.S.C. 1001.

1.4 BIDDER QUESTIONS

Questions relating to this solicitation and technical inquiries will be submitted via email to the assigned contract specialist, Lisa Ip via email at Lisa.I.Ip@usace.army.mil.

Please include the solicitation number, the project title, and location of the project together with company name, email address, and telephone number in your correspondence. Inquiries must be received no later than 14 calendar days prior to the bid due date.

Answers to pertinent questions will be posted on PIEE (https://piee.eb.mil) and System for Award

Management website (sam.gov). Changes to the solicitation will be made by amendment only (SF30).

1.5 COPIES OF SOLICITATION DOCUMENTS AND AMENDMENTS

Copies of the solicitation are available by INTERNET ACCESS ONLY. All solicitation documents will be posted to https://piee.eb.mil/ and sam.gov.

All amendments will be posted to https://piee.eb.mil/ and sam.gov. It shall be the contractor's responsibility to check the website for any amendments. The Bidder shall submit in the bid all requested information specified in this section of the Invitation for Bid (IFB) solicitation.

1.6 BID FORMAT AND SUBMITTAL REQUIREMENTS

BID FORMAT

Offerors shall submit the Pricing Schedule from Section 00 10 00. Proposal prices must be entered for all items of the Pricing Schedule. Award will be made to one (1) contractor.

SUBMITTAL REQUIREMENTS

The subsequent information will be submitted to the San Francisco District US Army Corps of Engineers and labeled Solicitation No. W912P726BA001.

The Bid Package shall consist of the following items:

(a) COVER LETTER:

1) Solicitation number and Project Title: W912P726BA001 San Joaquin/Port of Stockton FY26 Maintenance Dredging Project, Contra Costa, Sacramento, and San Joaquin Counties, California

2) Firm name, UEI, tax identification number (TIN), address, email, telephone, and fax numbers.

3) Names, title, and email of authorized signer.

4) Name, title, and signature of the person authorized to sign the proposal.

5) A statement specifying agreement with all terms, conditions, and provisions included in the solicitation.

(b) SCHEDULE:

1) The SF-1442 duly executed with an original signature by authorized official.

2) Include the Offeror's CAGE number in block 14.

3) Acknowledgement of all amendments.

4) Pricing Schedule (SECTION 00 10 00).

(c) REPRESENTATIONS AND CERTIFICATIONS:

1) The completed SECTION 00 45 00 of the RFP (Representations and Certifications)

2) Printed System for Award Management (SAM) Record (www.sam.gov)

(d) SUBMISSIONS FOR DETERMINATION OF CONTRACTOR RESPONSIBILITY (FAR 9.104-1):

Contractor shall submit the following:

1) A bank certification of financial capability or a financial statement not more than 60 days old. If more than 60 days old, a certificate stating that the financial condition is substantially the same or outlining the changes that have taken place.

2) Names of commercial and financial reporting agencies from which credit reports may be obtained.

Note: Information accumulated for purposes of determining the responsibility of a prospective contractor shall not be released or disclosed outside the Government, FAR 9.105-3. No award shall be made unless the contracting officer makes an affirmative determination of responsibility. To be determined responsible, the Contractor must meet the general standards of responsibility, FAR 9.104–1. A prospective contractor that is or recently has been seriously deficient in contract performance will be deemed non-responsible, unless the contracting officer determines that the circumstances were properly beyond the contractor's control or that the contractor has taken appropriate corrective action.

1.7 SPECIAL INSTRUCTIONS FORSUBMITTING YOURBID:

**Note**: All prospective Offerors must be registered in the System for Award Management (SAM -www.SAM.gov) and the Procurement Integrated Enterprise Environment (PIEE) website to be able to view and download solicitation information, and to submit offers.

Solicitation documents, plans, and specifications are only available to be download from PIEE, which may be accessed at https://wawf.eb.mil OR https://piee.eb.mil OR https://piee.eb.mil/xhtml/unauth/ home/login.xhtml.

Offers MUST BE submitted electronically through the PIEE website. The Government is not responsible for any loss of internet connectivity or for an offeror’s inability to access the documents posted at the referenced website. All offerors are advised that this project may be delayed, cancelled or revised at any time during the solicitation, selection, evaluation, and/or final award process.

Registration should be completed one (1) week prior to the anticipated solicitation release date. USACE will not notify Offerors of any changes to the solicitation; Offerors must monitor PIEE and SAM for the solicitation to be posted, and for any posted changes or amendments.

The public bid opening will be held via Microsoft Teams (MSTeams) at 01:00 pm PST 01:30pm PDT on 11 May 2026, which will allow participants to hear a live reading of the bids. Question regarding the bid opening shall be sent to Lisa.I.Ip@usace.army.mil and mary.fronck@usace.army.mil.

Bid opening meeting link, please contact POCs above for Meeting ID and Passcode::

https://dod.teams.microsoft.us/l/meetup-join/19%3adod%3ameeting_c01fb8a184a1433ab8d6b970eabe7a9e%40thread.v2/0?context=%7b%22Tid% 22%3a%22fc4d76ba-f17c-4c50-b9a7-8f3163d27582%22%2c%22Oid%22%3a%229f02ea99-e9cc-4995-abfe-3ec6bc812495%22%7d

Meeting ID: 993 891 855 834

Passcode: oV3ym33g

The Government will review the bids received electronically and post the abstracts of bids on sam.gov as soon as practicable after bid closing. It is the responsibility of all bidders to ensure their bid submissions are complete, inclusive of the price schedule, acknowledge of amendments, bid guarantee, and all additional information requested through this advertisement. In order to facilitate electronic submission of bonds, the Government may contact the surety that issues the offeror's submitted bid guarantee in order to validate the bond, as permitted by FAR 28.101-3(e).

1.8 OTHER BID DELIVERY METHODS

Telegraphic, Facsimile, emailed, HAND DELIVERED, MAILED, or comparable delivery methods of the Bid Package are not acceptable.

Bids may only be modified or withdrawn by electronic means through PIEE. A notice to modify or withdraw a bid sent via PIEE must be received in PIEE no later than the exact date and time set for Bid Opening.

1.9 BID BONDS

The offeror shall furnish a separate bid guarantee in accordance with the solicitation provision titled "Bid Guarantee", FAR 52.228-1. In accordance with FAR 28.101-2 (b) the bid guarantee amount shall be at least 20 percent of the “proposed price" but shall not exceed $3 million. When the penal sum is expressed as a percentage, a maximum dollar limitation may be stated.

In accordance with FAR28.106-1 a Standard Form (SF) 24 shall be used for the bid bond. In accordance with FAR 28.202(a) (1), corporate sureties utilized must appear on the list contained in the Department of Treasury Circular 570 titled, “Companies Holding Certificates of Authority as Acceptable Sureties on Federal Bonds and Acceptable Reinsuring Companies." Contractor shall provide written confirmation that the Contracting Specialist may contact the bonding company to confirm the bond agreement’s legitimacy.

1.10 INDIVIDUAL SURETIES IN SUPPORT OF BID BONDS

An offeror utilizing individual sureties in support of a bid bond shall include a Standard Form (SF) 28 (Affidavit of Individual Surety), accompanied by a pledge of acceptable assets from each person acting as an individual surety, and include these with the SF24 (Bid Bond),and the proposal itself (see clause titled "Pledges of Assets," FAR 52.228-11 DEVIATION 2020-O0016).

1.11 PERFORMANCE AND PAYMENT BONDS

The offeror will, furnish performance and payment bonds within the time established in the contract in accordance with FAR 52.228-15 DEV located in Section 00 72 00.

2.0 ACCEPTANCE OF OFFERS

A written award or acceptance of an offer furnished to the offeror within the time for acceptance specified in the offer, shall result in a binding contract without further action by either party.

At a minimum, any contract awarded as a result of this solicitation shall consist of the following documents: Standard Form 1442, Sections 00 10 00, 00 70 00, 00 71 00, 00 72 00, 00 73 00, technical specifications and drawings, and attachments listed in contract document.

2.1 CONTRACTOR RESPONSIBILITY, PRE-AWARD SURVEY

To determine a contractor's responsibility for purposes of contract award in accordance with FAR Part 9, the contractor is required to provide a statement regarding previous experience and past performance in performing comparable work, information related to the business organization, financial resources, and/or plant to be used in performing the work (see Attachment 2, Pre-award Survey).

The Government will request this information from the eligible contractor after receipt of offer if they have not had a contract with the San Francisco District within the last twelve months and the Government will set a due date for its submission.

The Pre-award Survey is attached to the solicitation for information purposes only and is not required as part of the bid package.

(a) If required to determine that a prospective contractor is responsible, the offeror must:

1) Demonstrate that they have adequate financial resources to perform the contractor the ability to obtain them.

2) Be able to comply with the required or proposed delivery or performance schedule, taking into consideration all existing commercial and governmental business commitments.

3) Have a satisfactory performance record. In making the determination of responsibility, the Government Contracting Officer shall consider relevant past performance information. A prospective contractor shall not be determined as responsible or not responsible solely based on a lack of relevant performance history except when there are special standards set forth in the solicitation, which applies, to all offerors that must be met in order to receive the award. These special standards may be necessary when unusual expertise or specialized facilities are necessary in the performance of the contract; therefore, in order to be determined as responsible for a particular contract, the offeror must be able to meet those special standards. A prospective contractor that is or recently has been seriously deficient in contract performance shall be presumed to be nonresponsive unless the Contracting Officer determines that the circumstances were beyond the contractor's control or that the contractor has taken appropriate corrective action.

Other responsibility considerations by the Contracting Officer will include past efforts by the contractor to apply sufficient tenacity and perseverance to perform acceptably, to meet quality requirements of contracts, and the contractor's past compliance with subcontracting plans (if required) under recent contracts.

4) Have a satisfactory record of integrity and business ethics.

5) Have the necessary organization, experience, accounting and operational controls, and technical skills, or the ability to obtain them (including, as appropriate, such elements as production control procedures, property control systems, quality assurance measures, and safety programs applicable to materials to be produced or services to be performed by the prospective contractor and subcontractors).

6) Have the necessary production, construction, and technical equipment and facilities, or the ability to obtain them.

7) Be otherwise qualified and eligible to receive an award under applicable laws and regulations.

2.2 PREPARATION OF SUBCONTRACTING PLAN

a) See FAR 52.219-9, Small Business Subcontracting Plan, incorporated by reference into this contract in Section 00 72 00.

b) The Small Business Subcontracting Plan is not required from the low bidder until after the Bid Opening; it is not required as part of the bid package. After the Bid Opening, if the selected bidder fails to submit an acceptable plan within the time prescribed by the Contracting Officer, the bidder will be ineligible for award.

c) Contact Contracting Officer with questions on the Small Business Subcontracting Plan requirements.

d) The acceptable Small Business Subcontracting Plan will be incorporated into and made a material part of the contract. The Corps of Engineers high encourages all bidders/offerors to meet the recommended subcontracting goals as follows:

Small Businesses 20%

The goals are calculated as a percentage of the TOTAL SUBCONTRACTING DOLLARS, NOT THE

TOTAL CONTRACT AMOUNT.

FY26 San Joaquin/ Stockton Channel O&M Dredging Project Solicitation

W912-P726-BA001

3.5 PLACEMENT AREAS (OPERATION AND MAINTENANCE)

3.5.1 Government-Furnished Dredged Material Placement Sites

If usage of government-furnished dredged material placement site is applicable, the general descriptions of the government-furnished dredged material placement sites that have historically been used are listed will be indicated on the contract drawings.

The placement sites may or may not have existing return water facilities.

Such facilities may need to be constructed, repaired, or modified by the Contractor if dewatering is necessary.

The Contractor is to satisfy itself as to conditions of the dredged material placement sites, including all dikes, during a site inspection.

After NTP, the contractor shall coordinate with the Government about the inspection dates. Accompanying the Contractor will be representatives of Government, the Port(s), and Reclamation Districts. The inspection will determine what, if any, repairs or modifications to the existing exterior levees or dikes will be required by the Port(s). Discharge lines crossing exterior dikes must not discharge material within 100 feet of the present toe of the dike. Unless otherwise directed by the Contracting Officer or delegated representative, the dredged material shall be discharged and deposited into the placement site at a location which will minimize hydraulic short circuiting and dead zone areas within the sedimentation pond.

The following requirements apply to all the government-furnished dredged material placement sites.

3.5.1.1 Damage to Existing Levees, Dikes, or Structures

Any damage to existing exterior dikes or levees due to the Contractor's fault or negligence shall be repaired to pre-project conditions at the Contractor's expense with a minimum crown width of 12 feet, maximum side slopes of 1V on 2H, compacted in accordance with the Backfill And Levee Penetrations paragraph, and have roadway surfaces equal to that of the existing dikes. Any roadway surface or re-vetted levee slope disturbed will be repaired to the satisfaction of the Contracting Officer or delegated representative. Borrow material shall come from within the placement area. All borrow activities shall be a minimum of 50 feet, (measured horizontally) away from the existing landside toe of an exterior dike. Any damage to bridges, culvert or utility crossings, or gates, including replacement of any surface treatment due to the Contractor's activities shall be repaired by the Contractor to the satisfaction of the Contracting Officer or delegated representative.

3.5.1.2 Maintenance and Inspection of Dikes or Levees

Once the Contractor has commenced dredge placement operations, the Contractor shall be responsible for the integrity, maintenance, and repair of all exterior and interior dikes. The Contractor shall have personnel present at placement sites at all times during placement operations and during periods when water is being retained (not to exceed 90 days) within the placement area, for the purpose of inspecting and monitoring the condition of the dikes, and for controlling the water quality of return flows, as well as for security purposes. Unless noted otherwise in the

SECTION 35 20 23 Page 8