# WATER SAMPLES CHEMICAL ANALYSES

Canonical: https://abierto.us/opportunities/140g0325q0187

- Solicitation number: 140G0325Q0187
- Notice type: Special notice (first published as sources sought)
- Status: Closed. Deadline was July 14, 2025 at 6:00 PM EDT
- Department: Department of the Interior
- Agency: US Geological Survey
- Contracting office: Office of Acquisiton Grants (140G03)
- NAICS: 541380 Testing Laboratories and Services
- Product or service code: B504 Chemical/Biological Studies and Analysis
- First posted: July 9, 2025
- Last posted: July 15, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/2cfd477a3b7148ef8370d4e6ae05ac10/view

## Description

WATER SAMPLES CHEMICAL ANALYSES Notice of Intent This is a notice of intent to solicit from a single source. The U.S. Geological Survey (USGS), intends to award a purchase order to University of Maryland, Chesapeake Biological Lab for chemical analyses (ammonium, nitrate, nitrite, phosphate, total dissolved nitrogen, total dissolved phosphorus, total particulate nitrogen, total particulate carbon, TP, TSS, chlorophyll, and phaeophytin concentrations) of water samples.

Award will be made in accordance with Federal Acquisition Regulation (FAR) 13.106-1(b) and the procedures at FAR Part 12 entitled, Acquisition of Commercial Items and FAR Part 13 entitled, Simplified Acquisition Procedures. Midwest Lake Management is, to the USGS’ knowledge, the only source who can provide the equipment with the required technical specifications. The USGS currently owns a Midwest system. Therefore, data comparability and consistency are critical for these analyses.

The purpose of this notice is to satisfy the requirements of FAR Subpart 5.101(a)(2) and FAR 5.2. This notice of intent is not a request for competitive quotes. However, all responsible parties may submit a quotation by the closing date of this announcement which shall be considered by the agency. No solicitation will be issued. A determination not to compete this action based upon responses received is in the sole discretion of the Government. The NAICS code for this action is 541380, Testing Laboratory.

Responses or inquiries shall only be accepted through electronic mail addressed to yangzhideng@usgs.gov and must be uploaded and received in their entirety no later than July 18, 2025 at 1300 PST. Responses submitted by hardcopy or any web portal shall not be accepted or considered.

## Publications

- July 9, 2025: Sources sought, due July 14, 2025 at 6:00 PM EDT. Notice dcfeb28e0dc943be99591facd653dab2. https://sam.gov/workspace/contract/opp/dcfeb28e0dc943be99591facd653dab2/view
- July 15, 2025: Special notice, due July 18, 2025 at 4:00 PM EDT. Notice 2cfd477a3b7148ef8370d4e6ae05ac10. https://sam.gov/workspace/contract/opp/2cfd477a3b7148ef8370d4e6ae05ac10/view

## Points of contact

- Deng, Yangzhi, yangzhideng@usgs.gov, 916-278-9326

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/140g0325q0187.