68HE0923F0073↗
Tetra Tech, Inc. received this contract from Region 9 Contracting Office, Environmental Protection Agency: $3.69M obligated so far for special studies/analysis- environmental assessments. It runs to 2027-01-01.
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
- $3.69M
- Potential value
- $3.69M
- Ends
- 2027-01-01
Source: USAspending.gov prime award records (obligations: money committed, not outlays), data as of Oct 26, 2026.
Cite this page: SpendQuery, Award 68HE0923F0073, data as of Oct 26, 2026, https://spendquery.com/award?id=CONT_AWD_68HE0923F0073_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
CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION OF, TCRA, PILOT STUDIES, OR REQUIREMENTS AT TRONOX COVE TRANSFER STATION COMPLETE (CTS), ACCESS ROADS IN NN UNDER THE RAES 2 CONTRACT #68HE0923D0002
Up for re-bid: ends 2027-01-01. Recompete brief → · F--EPA WATER RFP ↗
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-02
Obligations by fiscal year
SpendQuery holds FY2023 on; earlier years are on USAspending.gov.
Subcontractors: where the money went next
17 subawards totaling $1.74M (47.1% 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 | $1.10M | 8 | NM | 2024-02-13 | 2025-08-15 |
| Gel Laboratories LLC | $192.8K | 1 | SC | 2025-06-19 | 2025-06-19 |
| Field Environmental Instruments Inc | $167.6K | 3 | PA | 2024-02-21 | 2025-03-25 |
| Validata Chemical Services, Inc. | $119.0K | 1 | GA | 2023-11-02 | 2023-11-02 |
| Iina Ba Inc | $96.0K | 2 | NM | 2024-06-24 | 2025-01-08 |
| The Stephens Group LLC | $31.4K | 1 | WA | 2024-04-11 | 2024-04-11 |
| Environmental Data Services, Limited | $30.8K | 1 | PA | 2025-01-22 | 2025-01-22 |
The largest single subawards
| Date | To | Amount | For |
|---|---|---|---|
| 2025-08-15 | Environmental Restoration Group, Inc | $567.3K | TEAM SUB LABOR AND EQUIPMENT RENTAL FOR SUPPORT UNDER TO-017, CTS TCRA SUPPORT |
| 2024-02-13 | Environmental Restoration Group, Inc | $207.1K | TEAM SUB - LABOR AND FIELD EQUIPMENT FOR FIELD SUPPORT |
| 2025-06-19 | Gel Laboratories LLC | $192.8K | LAB ANALYTICAL SERVICES, MODIFICATION TO INCREASE AWARD VALUE FOR ADDITIONAL SAMPLES SENT TO LAB FOR ANALYSIS. |
| 2023-11-02 | Validata Chemical Services, Inc. | $119.0K | DATA VALIDATION SERVICES |
| 2024-10-31 | Environmental Restoration Group, Inc | $75.0K | TEAM SUB - LABOR AND FIELD EQUIPMENT |
| 2024-09-17 | Environmental Restoration Group, Inc | $75.0K | TEAM SUB - LABOR AND FIELD EQUIPMENT |
| 2024-07-16 | Field Environmental Instruments Inc | $70.2K | FIELD EQUIPMENT RENTAL |
| 2024-02-28 | Environmental Restoration Group, Inc | $64.1K | TEAM SUB - LABOR AND FIELD EQUIPMENT |
| 2024-06-24 | Iina Ba Inc | $63.9K | TEAM SUB - LABOR AND FIELD EQUIPMENT SUPPORT |
| 2025-03-25 | Field Environmental Instruments Inc | $58.2K | RENTAL OF AIR MONITORING EQUIPMENT |
| 2024-07-16 | Environmental Restoration Group, Inc | $46.6K | TEAM SUB - LABOR AND FIELD EQUIPMENT |
| 2024-02-21 | Field Environmental Instruments Inc | $39.1K | FIELD EQUIPMENT RENTAL |
| 2024-12-19 | Environmental Restoration Group, Inc | $35.0K | TEAM SUB - LABOR AND FIELD EQUIPMENT |
| 2025-02-10 | Environmental Restoration Group, Inc | $32.5K | TEAM SUB LABOR AND EQUIPMENT RENTAL SUPPORT FOR TO |
| 2025-01-08 | Iina Ba Inc | $32.1K | TEAM SUB LABOR AND EQUIPMENT SUPPORT FOR TO-017 |
| 2024-04-11 | Cascade Drilling, L.P. | $31.4K | DRILLING SERVICES |
| 2025-01-22 | Environmental Data Services, Limited | $30.8K | DATA VALIDATION SERVICES |
Every action
11 actions since 2023-09-18. Each is a modification or amendment with the money it added or took back.
| Date | Modification | Kind | Amount | What the agency wrote |
|---|---|---|---|---|
| 2026-09-24 | P00010 | Change order | $0 | THE PURPOSE OF THIS NO-COST, BILATERAL MOD IS TO EXTEND THE PERIOD OF PERFORMANCE. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2026-07-23 | P00009 | Supplemental agreement (work within scope) | $0 | THE PURPOSE OF THIS NO-COST, BILATERAL MOD IS TO EXTEND THE PERIOD OF PERFORMANCE. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2026-03-31 | P00008 | Supplemental agreement (work within scope) | $0 | THE PURPOSE OF THIS BILATERAL MOD IS TO EXTEND THE PERIOD OF PERFORMANCE. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2026-01-26 | P00007 | Supplemental agreement (work within scope) | $73.9K | THE PURPOSE OF THIS BILATERAL MOD IS TO INCREASE THE LEVEL OF EFFORT FOR TASK 4. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2025-09-17 | P00006 | Supplemental agreement (work within scope) | $0 | THE PURPOSE OF THIS NO-COST BILATERAL MOD IS TO EXTEND THE PERIOD OF PERFORMANCE. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2025-05-02 | P00005 | Supplemental agreement (work within scope) | $713.1K | THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD INCREMENTAL FUNDING. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2024-10-17 | P00004 | Funding only | $1.43M | THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD INCREMENTAL FUNDING. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2024-09-27 | P00003 | Supplemental agreement (work within scope) | $90.0K | THE PURPOSE OF THIS BILATERAL MOD IS TO INCREASE LOE AND ADD FUNDING. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2024-08-01 | P00002 | Administrative change | $0 | THE PURPOSE OF THIS UNILATERAL MOD IS TO REPLACE AN ALTERNATE TOCOR. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2024-02-16 | P00001 | Administrative change | $0 | THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD AN ALTERNATE TOCOR. CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION UNDER THE RAES 2 CONTRACT #68HE0923D0002 FOR REGIONS 6 & 9. |
| 2023-09-18 | 0 | $1.39M | CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION OF, TCRA, PILOT STUDIES, OR REQUIREMENTS AT TRONOX COVE TRANSFER STATION COMPLETE (CTS), ACCESS ROADS IN NN UNDER THE RAES 2 CONTRACT #68HE0923D0002 |
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 ↗