# Tetra Tech, Inc.

Canonical: https://abierto.us/vendors/tetra-tech-inc-j8cnbanbz6u8

- UEI: J8CNBANBZ6U8
- CAGE: 1HWF1
- Location: Oakland, CA
- Awards in window: 18 (21 transactions), $13,543,301 obligated, June 26, 2026 to September 9, 2026

## Awarding agencies

- Environmental Protection Agency: 17 awards, $13,543,301
- Federal Aviation Administration: 1 awards, $0

## Industries

- 541620 Environmental Consulting Services: $13,543,301
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology): $0

## Competition

- Full and Open Competition: 17 awards
- Competed Under SAP: 1 awards

## Largest awards

- 68HE0923F0071 (delivery order): $5,111,768, Region 9 Contracting Office. 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.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0071_6800_68HE0923D0002_6800/
- 68HE0923F0051 (delivery order): $4,989,234, Region 9 Contracting Office. The Purpose of This Bilateral Modification (P00007) Is to Increase and Fund Loe Increase and Pop Extension for N. Agency Ee/Ca - to #0007 (Do #68HE0923F0051) on Raes2 Contract #68HE0923D0002.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0051_6800_68HE0923D0002_6800/
- 68HE0924F0017 (delivery order): $646,693, Region 9 Contracting Office. The Purpose of This Bilateral Modification Is to Increase the Level-Of-Effort for R6 Scmb- to 23 - Navajo Nation Aum Response Assessment and Evaluation Services (Raes) II for EPA for Regions 6 & 9.. https://www.usaspending.gov/award/CONT_AWD_68HE0924F0017_6800_68HE0923D0002_6800/
- 68HE0925F0048 (delivery order): $640,825, Region 9 Contracting Office. The Purpose of This Bilateral Modification Is to Increase Level-Of-Effort (Loe) and Add Funding for to 27, R6, Homestake, Raes II for EPA for Regions 6 & 9. https://www.usaspending.gov/award/CONT_AWD_68HE0925F0048_6800_68HE0923D0002_6800/
- 68HE0923F0045 (delivery order): $595,101, Region 9 Contracting Office. The Purpose of This Bilateral Modification P00005 Is to Increase the Level-Of-Effort (Loe) and Funding, Incorporate a Work Plan/Cost Plan (Wp/Cp) Estimates, Revised Sow, Extend the Period of Performance (Pop), and Remove and Add a Tocor for the Old C. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0045_6800_68HE0923D0002_6800/
- 68HE0923F0049 (delivery order): $536,498, Region 9 Contracting Office. The Purpose of This Modification Is Update the Scope of Work to Include Administration, Maintenance, and Support for Naum Server Infrastructure (Task 7), Add Funding to Continue Work Tasks Within Original Sow and Modifications and Extend the Period O. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0049_6800_68HE0923D0002_6800/
- 68HE0925F0051 (delivery order): $523,182, Region 9 Contracting Office. The Purpose of This Modification (P00001) Is to Extend the Period of Performance for Jackpile-Paguate Uranium Mine Superfund Site.. https://www.usaspending.gov/award/CONT_AWD_68HE0925F0051_6800_68HE0923D0002_6800/
- 68HE0923F0072 (delivery order): $450,000, Region 9 Contracting Office. The Purpose of This Bilateral Modification Is to Increase the Level-Of-Effort and Funding; to 16 Under Raes 2 Contract #68HE0923D0002.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0072_6800_68HE0923D0002_6800/
- 68HE0925F0054 (delivery order): $50,000, Region 9 Contracting Office. The Purpose of This Unilateral Modification Is to Add Incremental Funding for to 29, Raes 2, Haystack.. https://www.usaspending.gov/award/CONT_AWD_68HE0925F0054_6800_68HE0923D0002_6800/
- 68HE0923F0048 (delivery order): $0, Region 9 Contracting Office. The Purpose of This No-Cost, Bilateral Modification Is to Extend the Period of Performance and Add a New Alternate Tocor. the Contractor Supports Agency Oversite of Rses,, Interim Ras, Water Studies, Ee/Cas, and Ras Aums in the Phase 2 Expanded Trust. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0048_6800_68HE0923D0002_6800/
- 68HE0923F0061 (delivery order): $0, Region 9 Contracting Office. The Purpose of This No-Cost, Bilateral Modification Is to Extend the Period of Performance for UAV Support on Navajo Nation in Accordance Under the Raes2 Contract #68HE0923D0002 for EPA for Regions 6 & 9.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0061_6800_68HE0923D0002_6800/
- 68HE0923F0068 (delivery order): $0, Region 9 Contracting Office. The Purpose of This No-Cost, Bilateral Modification Is to Extend the Pop End Date by Twelve (12) Months for Ruby Mines - Navajo Nation Aum Response Assessment and Evaluation Services (Raes) II for EPA for Regions 6 & 9... https://www.usaspending.gov/award/CONT_AWD_68HE0923F0068_6800_68HE0923D0002_6800/
- 68HE0923F0069 (delivery order): $0, Region 9 Contracting Office. The Purpose of This NO-COST Bilateral Modification Is to Extend the Period of Performance for This to Under the Raes 2 Contract # 68HE0923D0002.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0069_6800_68HE0923D0002_6800/
- 68HE0923F0070 (delivery order): $0, Region 9 Contracting Office. 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.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0070_6800_68HE0923D0002_6800/
- 68HE0923F0073 (delivery order): $0, Region 9 Contracting Office. 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.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0073_6800_68HE0923D0002_6800/
- 68HE0923F0074 (delivery order): $0, Region 9 Contracting Office. The Purpose of This Modification (P00009) Is to Extend the Task Order'S Period of Performance Under the Navajo Nation Aum Response Assessment and Evaluation Services (Raes) II for EPA for Regions 6 & 9.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0074_6800_68HE0923D0002_6800/
- 68HE0923F0078 (delivery order): $0, Region 9 Contracting Office. The Purpose of This NO-COST Bilateral Modification P00006 Is to Extend the Period of Performance. the Contractor Shall Provide Support Needed for Ntcra Planning and Oversight on Babbitt Ranches Under Raes 2 Contract #68HE0923D0002.. https://www.usaspending.gov/award/CONT_AWD_68HE0923F0078_6800_68HE0923D0002_6800/
- 697DCK25C00133 (definitive contract): $0, 697DCK Regional Acquisitions SVCS. Environmental Assessment Replacement of the Air Route Surveillance Radar (Arsr) on Mt. Ka`ala, Oahu, Hawaii. https://www.usaspending.gov/award/CONT_AWD_697DCK25C00133_6920_-NONE-_-NONE-/

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Source: USAspending.gov award data, keyed by UEI. Obligations in the window only. Cite https://abierto.us/vendors/tetra-tech-inc-j8cnbanbz6u8.