SpendQueryAI-powered · Beta

68HE0923F0072↗

Tetra Tech, Inc. received this contract from Region 9 Contracting Office, Environmental Protection Agency: $6.55M obligated so far for special studies/analysis- environmental assessments. It runs to 2026-12-31.

Key facts · data as of Oct 22, 2026

Recipient
Tetra Tech, Inc.
Awarding agency
Environmental Protection Agency
Contracting office
Region 9 Contracting Office (68HE09)
Obligated to date
$6.55M
Potential value
$6.55M
Ends
2026-12-31

Source: USAspending.gov prime award records (obligations: money committed, not outlays), data as of Oct 22, 2026.

Cite this page: SpendQuery, Award 68HE0923F0072, data as of Oct 22, 2026, https://spendquery.com/award?id=CONT_AWD_68HE0923F0072_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 SUPPORT REQUIREMENTS FOR DEVELOPING A CONCEPTUAL SITE MODEL (CSM), A REMEDIAL INVESTIGATION (RI), A RISK ASSESSMENT (RA), AND A FEASIBILITY STUDY (FS), COLLECTIVELY REFERRED TO AS AN RI/FS, AT THE LUKACHUKAI MOUNTAINS MINING DIST

Delivery Order · Environmental Protection Agency · to Tetra Tech, Inc. (UEI J8CNBANBZ6U8) · data as of 2026-10-22

Obligated to date$6.55M9 actions
Current value$6.55Mwith options exercised
Period2023-08-16 → 2026-12-31current end date
Passed on$1.75Mto 6 subcontractors

Up for re-bid: ends 2026-12-31. 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-01

Obligations by fiscal year

FY2023$500.0K
FY2024$4.10M
FY2025$1.50M
FY2026$450.0K

SpendQuery holds FY2023 on; earlier years are on USAspending.gov.

Subcontractors: where the money went next

12 subawards totaling $1.75M (26.7% 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.

SubcontractorAmountSubawardsWhereFirstLast
Environmental Restoration Group, Inc$559.3K2NM2024-08-272025-12-04
Gel Laboratories LLC$510.1K3SC2024-10-032026-05-22
Sundance Consultants, LLC$379.4K3ID2024-05-172025-03-25
Iina Ba Inc$137.9K2NM2024-08-092025-02-26
Environmental Data Services, Limited$119.5K1PA2024-10-212024-10-21
Allterra Central$43.9K1TX2025-08-262025-08-26
The largest single subawards
DateToAmountFor
2025-12-04Environmental Restoration Group, Inc$508.2KTEAM SUB LABOR AND EQUIPMENT RENTAL SUPPORT FOR TO - MODIFY TASK ORDER TO AUTHORIZING ADDITIONAL/CONTINUED LABOR AND EQUIPMENT RENTAL SUPPORT
2025-07-10Gel Laboratories LLC$202.4KLABORATORY ANALYTICAL SERVICES
2024-05-17Sundance Consultants, LLC$177.5KMONITORING AND CULTURAL RESOURCE SURVEYS
2025-03-25Sundance Consultants, LLC$158.5KCULTURAL RESOURCES SURVEYS AND MONITORING SERVICES
2024-10-03Gel Laboratories LLC$156.4KLABORATORY ANALYTICAL SERVICES
2026-05-22Gel Laboratories LLC$151.3KLABORATORY ANALYTICAL SERVICES
2024-10-21Environmental Data Services, Limited$119.5KDATA VALIDATION SERVICES
2024-08-09Iina Ba Inc$85.7KTEAM SUB - LABOR AND FIELD EQUIPMENT SUPPORT FOR FIELD WORK
2025-02-26Iina Ba Inc$52.2KTEAM SUB LABOR AND EQUIPMENT RENTAL SUPPORT FOR TO
2024-08-27Environmental Restoration Group, Inc$51.2KTEAM SUB - LABOR AND FIELD EQUIPMENT FOR FIELD WORK
2025-08-26Allterra Central Inc$43.9KFIELD EQUIPMENT RENTAL FOR PROJECT SUPPORT
2024-08-22Sundance Consultants, LLC$43.4KMONITORING AND CULTURAL RESOURCE SURVEYS

Every action

9 actions since 2023-08-16. Each is a modification or amendment with the money it added or took back.

DateModificationKindAmountWhat the agency wrote
2026-07-10P00009Supplemental agreement (work within scope)$450.0KTHE PURPOSE OF THIS BILATERAL MODIFICATION IS TO INCREASE THE LEVEL-OF-EFFORT AND FUNDING; TO 16 UNDER RAES 2 CONTRACT #68HE0923D0002.
2025-12-05P00008Supplemental agreement (work within scope)$0THE PURPOSE OF THIS NO-COST, BILATERAL MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE; TO 16 UNDER RAES 2 CONTRACT #68HE0923D0002.
2025-05-22P00007Supplemental agreement (work within scope)$1.50MTHE PURPOSE OF THIS BILATERAL MODIFICATION IS TO ADD SCOPE AND FUNDING TO TO 16 UNDER RAES 2 CONTRACT #68HE0923D0002.
2024-08-02P00005Administrative change$0THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO REMOVE THE ALTERNATE TOCOR FOR TO 16 UNDER RAES 2 CONTRACT #68HE0923D0002.
2024-05-31P00004Administrative change$0THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO CHANGE THE PRIMARY TOCOR UNDER RAES 2 CONTRACT #68HE0923D0002.
2024-05-29P00003Administrative change$0THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO CHANGE THE PRIMARY AND ALTERNATE TOCORS UNDER RAES 2 CONTRACT #68HE0923D0002.
2024-05-06P00002Change order$3.20MTHE PURPOSE OF THIS MODIFICATION IS TO EXTEND THE POP AND ADD TASKS AND FUNDING TO SUPPORT FOR PHASE 2 OF THE LUKACHUKAI MOUNTAINS MINING DISTRICT (LLMD) PROJECT INCLUDING CSM,RI/FS UNDER RAES 2 CONTRACT #68HE0923D0002.
2023-12-21P00001Funding only$896.8KTHE PURPOSE OF THIS MODIFICATION IS TO ADD FUNDING FOR THE CONTRACTOR TO SUPPORT REQUIREMENTS FOR DEVELOPING A CONCEPTUAL SITE MODEL (CSM), A REMEDIAL INVESTIGATION (RI), A RISK ASSESSMENT (RA), AND A FEASIBILITY STUDY (FS), COLLECTIVELY REFERRED TO
2023-08-160$500.0KTHE CONTRACTOR SHALL SUPPORT REQUIREMENTS FOR DEVELOPING A CONCEPTUAL SITE MODEL (CSM), A REMEDIAL INVESTIGATION (RI), A RISK ASSESSMENT (RA), AND A FEASIBILITY STUDY (FS), COLLECTIVELY REFERRED TO AS AN RI/FS, AT THE LUKACHUKAI MOUNTAINS MINING DIST

Source: USAspending.gov prime award transactions and FSRS subaward reports, as loaded by SpendQuery (data as of 2026-10-22). Amounts are obligations (money committed), not outlays. The official record on USAspending.gov ↗