# Lead (Pb) isotope ratio measurements analyses on s

Canonical: https://abierto.us/opportunities/140g0225q0052

- Solicitation number: 140G0225Q0052
- Notice type: Solicitation (first published as sources sought)
- Status: Closed. Deadline was May 9, 2025 at 4:00 PM EDT
- Department: Department of the Interior
- Agency: US Geological Survey
- Contracting office: Ofc of Acquisition Grants-Denver (140G02)
- NAICS: 541380 Testing Laboratories and Services
- Product or service code: B504 Chemical/Biological Studies and Analysis
- First posted: April 2, 2025
- Last posted: April 29, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/696508dbe2514965a9de72c5d4f781b9/view

## Description

The purpose of this amendment is to provide Questions and Answers as Attachment A. (See Attachment A for details). ALL OTHER TERMS AND CONDITIONS ARE UNCHANGED Laboratory analytical services to provide Lead (Pb) isotope ratio measurements analyses on soil samples for the USGS Geology, Geophysics, and Geochemistry Science Center (GGGSC), Denver, Colorado.

1. This is a Solicitation issued as a Request for Quotations (RFQ). Submit written quotations on RFQ Number 140G0225Q0052. This solicitation will utilize the policies in the Federal Acquisition Regulations (FAR) Part 12, Acquisition of Commercial Products and Commercial Services, and in conjunction with the policies and procedures for evaluation, and award prescribed in FAR Part 13.1 Simplified Procedures, as appropriate for this acquisition.

2. The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular (FAC) 2025-03.

3. The solicitation is NOT a Small Business Set-Aside. The North American Industry Classification System (NAICS) code is 541380 (Testing Laboratories and Services) and the size standard is $19.0 Million.

4. Vendors are required to be registered and active in System for Award Management (SAM) when submitting an offer or quotation. Register at https://www.sam.gov/index.html prior to submitting your quotation. See FAR provision 52.204-7.

5. Please download attached Solicitation 140G0225Q0052 for all Clauses and Provisions.

## Publications

- April 2, 2025: Sources sought, due April 9, 2025 at 4:30 PM EDT. Notice a72c7ef3b5f2483ca9ca3b3bada345f3. https://sam.gov/workspace/contract/opp/a72c7ef3b5f2483ca9ca3b3bada345f3/view
- April 25, 2025: Solicitation, due May 9, 2025 at 4:30 PM EDT. Notice 8b12d3c57fdd46899501c48d5b4c9bfb. https://sam.gov/workspace/contract/opp/8b12d3c57fdd46899501c48d5b4c9bfb/view
- April 29, 2025: Solicitation, due May 9, 2025 at 4:00 PM EDT. Notice 696508dbe2514965a9de72c5d4f781b9. https://sam.gov/workspace/contract/opp/696508dbe2514965a9de72c5d4f781b9/view

## Points of contact

- Williams, Lisa, ldwilliams@usgs.gov, 303-236-9327

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/140g0225q0052.