Putting the award page together from the records…
Putting the award page together from the records…
Tetra Tech, Inc. received this contract from Region 9 Contracting Office, Environmental Protection Agency: $13.50M obligated so far for special studies/analysis- environmental assessments. It runs to 2028-03-01, or to 2028-04-08 if every option is exercised.
Key facts · data as of Oct 23, 2026
Source: USAspending.gov prime award records (obligations: money committed, not outlays), data as of Oct 23, 2026.
Cite this page: SpendQuery, Award 68HE0923F0071, data as of Oct 23, 2026, https://spendquery.com/award?id=CONT_AWD_68HE0923F0071_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 PROVIDE TECHNICAL SUPPORT AND ASSISTANCE FOR THE USEPA NAVAJO ABANDONED URANIUM MINES (NAUM) PROGRAM AS IT DEVELOPS PROGRAM STANDARDS, TRAININGS AND WORKSHOPS, AND OTHER TECHNICAL SUPPORT WORK NEEDED FOR SITE INVESTIGATION.
Up for re-bid: ends 2028-03-01. Recompete brief →
SpendQuery holds FY2023 on; earlier years are on USAspending.gov.
4 subawards totaling $840.2K (6.2% of what was obligated), as Tetra Tech, Inc. reported them. Primes report subawards of $30,000 or more; smaller ones and unreported ones aren't here.
| Subcontractor | Amount | Subawards | Where | First | Last |
|---|---|---|---|---|---|
| Environmental Restoration Group, Inc | $251.2K | 1 | NM | 2023-10-27 | 2023-10-27 |
| Gel Laboratories LLC | $221.8K | 1 | SC | 2025-05-06 | 2025-05-06 |
| Alpine Archaeological Consultants Inc | $204.6K | 1 | CO | 2025-04-01 | 2025-04-01 |
| Environmental Data Services, Limited | $162.6K | 1 | PA | 2025-05-06 | 2025-05-06 |
| Date | To | Amount | For |
|---|---|---|---|
| 2023-10-27 | Environmental Restoration Group, Inc | $251.2K | TEAM SUB LABOR AND CLIN EQUIPMENT RENTAL SUPPORT |
| 2025-05-06 | Gel Laboratories LLC | $221.8K | LABORATORY ANALYTICAL SERVICES RAES TO-015 |
| 2025-04-01 | Alpine Archaeological Consultants Inc | $204.6K | CULTURAL RESOURCE MONITORING AND SURVEYING |
| 2025-05-06 | Environmental Data Services, Limited | $162.6K | DATA VALIDATION SERVICES |
9 actions since 2023-09-12. Each is a modification or amendment with the money it added or took back.
| Date | Modification | Kind | Amount | What the agency wrote |
|---|---|---|---|---|
| 2026-09-09 | P00008 | Supplemental agreement (work within scope) | $4.96M | P00008 - LEVEL-OF-EFFORT (LOE) AND FUNDING INCREASE, TO 0015 NAUM PROGRAM DEVELOPMENT & SUPPORT - NAVAJO NATION AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II FOR EPA FOR REGIONS 6 & 9. |
| 2026-07-21 | P00007 | Supplemental agreement (work within scope) | $148.5K | P00007 - LEVEL-OF-EFFORT (LOE) AND FUNDING INCREASE, TO 0015 NAUM PROGRAM DEVELOPMENT & SUPPORT - NAVAJO NATION AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II FOR EPA FOR REGIONS 6 & 9. |
| 2025-09-05 | P00006 | Supplemental agreement (work within scope) | $0 | THE PURPOSE OF THIS NO-COST BILATERAL MOD IS TO INCORPORATE A REVISED SOW TO REFLECT CORRECTIONS IN SSID. THIS IS MOD P00006 FOR TO 15 THAT PROVIDES SUPPORT FOR NAUM PROGRAM TO DEVELOP PROGRAM STANDARDS UNDER THE RAES 2 CONTRACT #68HE0923D0002. |
| 2025-07-10 | P00005 | Change order | $4.96M | THE PURPOSE OF THIS BILATERAL MOD IS TO INCORPORATE A REVISED SOW AND KTR WORK PLAN, INCREASE THE LOE FOR A FEW TASKS, AND ADD A NEW ALTERNATE TOCOR. THIS IS MOD P00005 FOR TO 15 THAT PROVIDES SUPPORT FOR NAUM PROGRAM TO DEVELOP PROGRAM STANDARDS UND |
| 2024-08-19 | P00004 | Supplemental agreement (work within scope) | $1.98M | THE PURPOSE OF THIS UNLITERAL MOD IS TO INCORPORATE A REVISED SOW AND KTR WORK PLAN. THIS IS MOD P00004 FOR TO 15 THAT PROVIDES SPT FOR NAUM PROGRAM TO DEVELOP PROGRAM STANDARDS UNDER THE RAES 2 CONTRACT #68HE0923D0002. |
| 2023-11-03 | P00003 | Administrative change | $0 | THE PURPOSE OF THIS UNLITERAL MOD IS TO REMOVE AN ALT TOCOR. THE CONTRACTOR PROVIDES SUPPORT FOR THE USEPA NAUM PROGRAM TO DEVELOP PROGRAM STANDARDS UNDER THE RAES 2 CONTRACT #68HE0923D0002. |
| 2023-09-25 | P00002 | Administrative change | $0 | THE PURPOSE OF THIS UNLITERAL MOD IS TO REMOVE AN ALT TOCOR. THE CONTRACTOR PROVIDE TECHNICAL SUPPORT AND ASSISTANCE FOR THE USEPA NAUM PROGRAM TO DEVELOP PROGRAM STANDARDS, TRAININGS, WORKSHOPS, & OTHER SUPPORT FOR SITE INVESTIGATION UNDER THE R |
| 2023-09-20 | P00001 | Administrative change | $0 | THE PURPOSE OF THIS UNLITERAL MOD IS TO CHANGE THE ALT TOCOR. THE CONTRACTOR PROVIDE TECHNICAL SUPPORT AND ASSISTANCE FOR THE USEPA NAUM PROGRAM TO DEVELOP PROGRAM STANDARDS, TRAININGS, WORKSHOPS, & OTHER SUPPORT FOR SITE INVESTIGATION UNDER THE |
| 2023-09-12 | 0 | $1.45M | THE CONTRACTOR PROVIDE TECHNICAL SUPPORT AND ASSISTANCE FOR THE USEPA NAVAJO ABANDONED URANIUM MINES (NAUM) PROGRAM AS IT DEVELOPS PROGRAM STANDARDS, TRAININGS AND WORKSHOPS, AND OTHER TECHNICAL SUPPORT WORK NEEDED FOR SITE INVESTIGATION. |
Source: USAspending.gov prime award transactions and FSRS subaward reports, as loaded by SpendQuery (data as of 2026-10-23). Amounts are obligations (money committed), not outlays. The official record on USAspending.gov ↗