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

SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

Solicitation/Contract Form Continuation

The following changes have been made:

Miscellaneous text in this section has been modified to:

QUESTION 1: Regarding Task Item #2 The MA DEP schedule indicates that there are three required coliform samples per month. Is the item cost for this line item inclusive of the three coliform samples, any required chemical tests, sampling, travel , et al, for each event?

RESPONSE 1: As stated in III. Execution, 2. Routine Water Testing, the Contractor shall perform routine tests at the intervals agreed upon by the Mass DEP in the written sampling plan. The bid schedule for the Routine Water Testing CLIN is one month per billable unit. The Contractor's bid should capture all costs included in performing each month's Routine Water Testing events.

QUESTION 2: The MA DEP schedule indicates that April coliform samples are required. Section 5 of the Performance Work Statement states: Services will only need to be physically rendered from May through September each year while the park and well are in use. Can you confirm that April doesn't require sampling event?

RESPONSE 2: Yes, April sampling is required per the 2026-2028 Compliance Monitoring Schedule. Section 5. Schedule of the Performance Work Statement is revised to remove the sentence "Services will only need to be physically rendered from May through September each year while the park and well are in use." An additional quantity will be added to Bid Schedule Item

2. Routine Water Testing, bringing the total quantity from 5 to 6.

QUESTION 3: Can the awardee be provided a copy of the prior year's 'sampling plan'?

RESPONSE 3: The 2023-2025 Compliance Monitoring Schedule for PWS 2054052 is a publicly available document found at the Mass.gov website, here: https://www.mass.gov/info-details/public-water-supplier-document-search.

QUESTION 4: Regarding Task Item #1, is the awardee expected to perform the startup activities (pressurizing and disinfecting the water system)? Or verify work was completed, complete the checklist, and submit the certification to MA DEP?

RESPONSE 4: The Contractor is expected to verify after-the-fact that the PWS was reopened correctly, identify issues with MA DEP compliance, and submit the certification to MA DEP. Project staff will perform the work to reopen the PWS from a winterized state.

QUESTION 5: Is a Massachusetts (MA) certified operator required to perform the services?

W912WJ26QA0720002

https://www.mass.gov/info-details/public-water-supplier-document-search https://www.mass.gov/info-details/public-water-supplier-document-search

RESPONSE 5: Yes, in accordance with 310 CMR 22.00: The Massachusetts Drinking Water Regulations, a MA-certified operator is required to perform the services.

W912WJ26QA0720002

KO CONTRACTING DIVISION, 696 VIRGINIA ROAD

CONCORD, MA 01742-2751

UNITED STATES

ALICIA LACROSSE, EMAIL: ALICIA.N.LACROSSE@USACE.ARMY.MIL TELEPHONE: 978-318-8902

AdminBy:

SCD: PAS:

Solicitation closing remains March 27, 2026 at 2:00 PM Eastern.

All other terms and conditions remain unchanged.