# Technical support services for CERCLA response actions at five sites

Canonical: https://abierto.us/opportunities/140p2126q0096

- Solicitation number: 140P2126Q0096
- Notice type: Justification
- Status: Awarded to Vanasse Hangen Brustlin Inc.
- Department: Department of the Interior
- Agency: National Park Service
- Contracting office: Washington Contracting Office (140P21)
- NAICS: 541620 Environmental Consulting Services
- Product or service code: F115 Environmental Systems Protection- Environmental Consulting And Legal Support
- First posted: September 23, 2026
- Last posted: September 23, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/70f1b9acd1b24b70a5eddce0a9af1938/view

## Description

CERCLA technical services to support NPS' oversight of five contaminated sites in Washington DC; includes two one-year option periods.  Details are in the attached sole source justification.

## Attachments

- [Sole_Source_Justification_-_NACE_multi-site_-REDACTED_1.pdf](https://sam.gov/api/prod/opps/v3/opportunities/resources/files/5feb89c7410f473d84a8b203b033bd05/download)

## Award on USAspending

- Recipient: Vanasse Hangen Brustlin Inc. (UEI KJQHMKR62UJ3)
- Contract: GS00F116CA
- Obligated: $0.00
- Competition: Full and Open Competition, 999 offers received
- Link: award number GS00F116CA equals the contract number; awarding office not confirmed (medium confidence)
- Record: https://www.usaspending.gov/award/CONT_IDV_GS00F116CA_4732/


## Publications

- September 23, 2026: Justification. Notice 70f1b9acd1b24b70a5eddce0a9af1938. https://sam.gov/workspace/contract/opp/70f1b9acd1b24b70a5eddce0a9af1938/view

## Points of contact

- Welch, Sarah, Sarah_Welch@ios.doi.gov, 202-354-3974

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Source: SAM.gov Contract Opportunities bulk extract and USAspending.gov award data. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/140p2126q0096.