68HE0923F0070↗
Tetra Tech, Inc. received this contract from Region 9 Contracting Office, Environmental Protection Agency: $1.10M obligated so far for special studies/analysis- environmental assessments. It runs to 2027-09-30.
Key facts · data as of Oct 26, 2026
- Recipient
- Tetra Tech, Inc.
- Awarding agency
- Environmental Protection Agency
- Contracting office
- Region 9 Contracting Office (68HE09)
- Obligated to date
- $1.10M
- Potential value
- $1.10M
- Ends
- 2027-09-30
Source: USAspending.gov prime award records (obligations: money committed, not outlays), data as of Oct 26, 2026.
Cite this page: SpendQuery, Award 68HE0923F0070, data as of Oct 26, 2026, https://spendquery.com/award?id=CONT_AWD_68HE0923F0070_6800_68HE0923D0002_6800
Tetra Tech, Inc.: all federal awards · Environmental Protection Agency: spending · Region 9 Contracting Office: what it buys · The follow-on: recompete brief
THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR THE REMAINING KNOWN 278 UNFUNDED AUMS AND MINE AREAS ON THE NAVAJO NATION UNDER THE NN-AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II CONTRACT FOR EPA FOR REGIONS 6 & 9.
Up for re-bid: ends 2027-09-30. Recompete brief →
What it is
- Product or service
- Special Studies/Analysis- Environmental Assessments (PSC B510)
- Industry
- Environmental Consulting Services (NAICS 541620)
- Contracting office
- Region 9 Contracting Office (68HE09)
- Competition
- Full and open competition
- Pricing
- Time and materials
- How it was bought
- Single-award IDIQ · under 68HE0923D0002
- Where the work is
- Apache, AZ · district AZ-01
Obligations by fiscal year
SpendQuery holds FY2023 on; earlier years are on USAspending.gov.
Subcontractors: where the money went next
No subawards reported for this award. Primes report subawards of $30,000 or more; many awards have none.
Every action
7 actions since 2023-09-13. Each is a modification or amendment with the money it added or took back.
| Date | Modification | Kind | Amount | What the agency wrote |
|---|---|---|---|---|
| 2026-08-19 | P00006 | Supplemental agreement (work within scope) | $0 | THE PURPOSE OF THIS NO-COST, BILATERAL MOD IS TO EXTEND THE PERIOD OF PERFORMANCE (POP). THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR KNOWN 278 UNFUNDED AUMS ON THE NAVAJO NATION UNDER RAES II FOR EPA FOR REGIONS 6 & 9. |
| 2026-06-02 | P00005 | Supplemental agreement (work within scope) | $571.8K | THE PURPOSE OF THIS BIILATERAL MOD IS TO INCREASE THE LOE AND FUND THE ADDITIONAL LOE. THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR KNOWN 278 UNFUNDED AUMS ON THE NAVAJO NATION UNDER RAES II FOR EPA FOR REGIONS 6 & 9. |
| 2025-03-13 | P00004 | Supplemental agreement (work within scope) | $173.7K | THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD SCOPE AND DOGE APPROVED FUNDING. THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR KNOWN 278 UNFUNDED AUMS ON THE NAVAJO NATION UNDER RAES II FOR EPA FOR REGIONS 6 & 9. |
| 2024-08-28 | P00003 | Administrative change | $0 | THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD AN ALTERNATE TOCOR. THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR KNOWN 278 UNFUNDED AUMS ON THE NAVAJO NATION UNDER RAES II FOR EPA FOR REGIONS 6 & 9. |
| 2024-07-09 | P00002 | Administrative change | $0 | THE PURPOSE OF THIS UNILATERAL MOD IS TO CHANGE PRIMARY TOCOR. THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR KNOWN 278 UNFUNDED AUMS ON THE NAVAJO NATION UNDER RAES II FOR EPA FOR REGIONS 6 & 9. |
| 2023-10-23 | P00001 | Administrative change | $0 | THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD ALTERNATE TOCOR. THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR THE REMAINING KNOWN 278 UNFUNDED AUMS AND MINE AREAS ON THE NAVAJO NATION UNDER RAES II CONTRACT FOR EPA FOR REGIONS 6 & 9. |
| 2023-09-13 | 0 | $355.6K | THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR THE REMAINING KNOWN 278 UNFUNDED AUMS AND MINE AREAS ON THE NAVAJO NATION UNDER THE NN-AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II CONTRACT FOR EPA FOR REGIONS 6 & 9. |
Source: USAspending.gov prime award transactions and FSRS subaward reports, as loaded by SpendQuery (data as of 2026-10-26). Amounts are obligations (money committed), not outlays. The official record on USAspending.gov ↗