Sol_140G0226Q0027_Amd_0003.pdf

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 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.

E. IMPORTANT: is not is required copies to the issuing office.

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

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

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

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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)

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.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

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

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

PAGESOF

Contractor

The hour and date specified for receipt of Offers to sign this document and return

Yvette Sornberger

See continuation page

USGS OAG DENVER ACQUISITION BRANCH

PO BOX 25046

204 DENVER FEDERAL CENTER

DENVER CO 80225-0046

USGS OAG DENVER ACQUISITION BRANCH

PO BOX 25046

DENVER CO 80225-0046

GDB

GDB

140G0226Q0027

03/27/2026

03/27/2026

1 2

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGES

NAME OF OFFEROR OR CONTRACTOR

SUPPLIES/SERVICES

(B)

UNIT

(D)

UNIT PRICE

(E)

AMOUNT

(F)

OPTIONAL FORM 336 (4-86)

Sponsored by GSA FAR (48 CFR) 53.110

ITEM NO.

(A)

QUANTITY

(C)

NSN 7540-01-152-8067

140G0226Q0027/0003

Period of Performance 05/20/2026 -05/19/2031

CONTRACTOR UNIQUE ENTITY ID:

CONTRACTOR POC EMAIL: ___________________

BLANKET PUCHASE AGREEMENT (BPA)

NOTE: BPA is not a contract. The Government is not obligated to place any order, and the

Contractor is not obligated to accept orders.

The resulting BPA can be canceled by either party at any time. A BPA is not enforceable against either party. An enforceable contract exists only when the Government places a BPA

Call order against the BPA and the Contractor accepts the BPA Call. Period of Performance

04/20/2026 - 04/19/2031.

Period of Performance: 05/22/2026 to

05/21/2031

The purpose of Amendment 0003 is to provide

Government responses to questions submitted by potential offerors. The questions and corresponding answers are provided below and are hereby incorporated into the solicitation.

This amendment does not change the scope, specifications, or performance requirements of the solicitation unless specifically stated in the responses.

The closing date for receipt of quotations is extended to May 15, 2026.

Q: Would you accept a proposal for

Microplastics analysis by RAMAN method in lieu of LDIR? The method our lab follows includes identification and summation of 10 polymers in the range of 20um to 500um?

A: No, this approach would not meet the objectives of our study.

Q: Our lab can support with micro-FTIR analysis method only. Could you please confirm if FTIR method is acceptable? SGS uses the FTIR method, would the FTIR method be acceptable for this program?

A: No, this approach would not meet the objectives of our study.

Sponsored by GSA FAR (48 CFR) 53.110