# Cation exchange capacity and X-ray diffraction of geologic samples

Canonical: https://abierto.us/opportunities/140g0226q0176

- Solicitation number: 140G0226Q0176
- Notice type: Sources sought
- Status: Closed. Deadline was September 15, 2026 at 2:00 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: B599 Other Special Studies and Analysis
- Set-aside: Total small business set-aside
- First posted: September 13, 2026
- Last posted: September 13, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/9aad5180661a4060bc8c50f98b84c144/view

## Description

Cation exchange capacity and X-ray diffraction of geologic samples

## Attachments

- [A14_Sources_Sought_Notice_1.pdf](https://sam.gov/api/prod/opps/v3/opportunities/resources/files/a488fb88f3ef409cae4db084f788a024/download)

## Publications

- September 13, 2026: Sources sought, due September 15, 2026 at 2:00 PM EDT. Notice 9aad5180661a4060bc8c50f98b84c144. https://sam.gov/workspace/contract/opp/9aad5180661a4060bc8c50f98b84c144/view

## Points of contact

- Rollin, Jennifer, jennifer_rollin@ios.doi.gov, 303-236-9321

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/140g0226q0176.