Data / Federal awards / NAICS 541620 / TETRA TECH, INC.
TETRA TECH, INC.: 55 federal contract awards, $54.2 million obligated (FY2024 to FY2027)
TETRA TECH, INC. (UEI J8CNBANBZ6U8), Oakland, CA, received 55 federal prime contract awards with $54.2 million obligated in fiscal years 2024 to 2027, from 3 agencies under 3 NAICS codes. Its largest buyer is Environmental Protection Agency ($53.7 million) and its largest code is NAICS 541620 Environmental Consulting Services.
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- UEI
- J8CNBANBZ6U8
- Location
- Oakland, CA
- Business size
- Other Than Small Business
- Contract awards
- 55
- Obligated
- $54.2 million
- First action in window
- 2023-10-13
- Latest action
- 2026-09-29
Where the work is
NAICS codes, with the other winners in each.
| NAICS | Industry | Awards | Obligated |
|---|---|---|---|
| 541620 | Environmental Consulting Services | 51 | $53.7 million |
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | 1 | $277,365 |
| 562910 | Remediation Services | 3 | $162,960 |
Buying agencies
| Agency | Awards | Obligated |
|---|---|---|
| Environmental Protection Agency | 51 | $53.7 million |
| Department of Transportation | 1 | $277,365 |
| Department of Defense | 3 | $162,960 |
Obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2024 | $15.6 million |
| FY2025 | $21.9 million |
| FY2026 | $16.7 million |
Contract awards
The 50 largest of 55 awards by dollars obligated in fiscal years 2024 to 2027.
| Award ID | Agency | Type | NAICS | What it buys | Obligated in window | Award value | Starts | Ends | Place of performance | Source |
|---|---|---|---|---|---|---|---|---|---|---|
| 68HE0923F0051 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PERFORM REQUIRED TO CONDUCT THE ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE FOLLOWING TRONOX | $15,397,370 | $20,268,423 | July 20, 2023 | November 30, 2027 | Round Rock, AZ | usaspending.gov |
| 68HE0923F0071 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR PROVIDE TECHNICAL SUPPORT AND ASSISTANCE FOR THE USEPA NAVAJO ABANDONED URANIUM MINES (NAUM) PROGRAM AS IT DEVELOPS PROGRAM S | $12,056,963 | $13,504,856 | September 12, 2023 | March 1, 2028 | Shiprock, NM | usaspending.gov |
| 68HE0923F0074 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE THE SUPPORT NEEDED FOR TECHNICAL DESIGN SERVICES,& PLANNING AND CONDUCTING CLEANUP VERIFICATION OF TCRAS, PILOT | $6,200,601 | $10,655,361 | September 29, 2023 | September 30, 2027 | Lukachukai, AZ | usaspending.gov |
| 68HE0923F0072 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL SUPPORT REQUIREMENTS FOR DEVELOPING A CONCEPTUAL SITE MODEL (CSM), A REMEDIAL INVESTIGATION (RI), A RISK ASSESSMENT (RA | $6,046,625 | $6,546,625 | August 16, 2023 | December 31, 2026 | Window Rock, AZ | usaspending.gov |
| 68HE0924F0004 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE SUPPORT FOR REMOVAL SITE EVALUATIONS (RSE) AT THE SKYLINE AUM WHICH ENCOMPASSES SKYLINE MINE AND UTAH NO. 1 LEA | $3,386,462 | $3,386,462 | November 22, 2023 | December 31, 2026 | Monument Valley, UT | usaspending.gov |
| 68HE0923F0073 | Environmental Protection Agency | Delivery Order | 541620 | CONTRACTOR SHALL PROVIDE TECHNICAL DESIGN SERVICES FOR PLANNING & CONDUCTING CLEANUP VERIFICATION OF, TCRA, PILOT STUDIES, OR REQUIREMENTS A | $2,304,568 | $3,692,684 | September 18, 2023 | January 1, 2027 | Red Valley, AZ | usaspending.gov |
| 68HE0924F0017 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL SUPPORT TO USEPA, REGION 6, IN FULFILLMENT OF ITS RESPONSIBILITIES FOR OVERSIGHT & ENFORCEMENT OF A G | $1,594,580 | $1,594,580 | May 13, 2024 | April 9, 2028 | Bluewater, NM | usaspending.gov |
| 68HE0923F0045 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE SUPPORT NEEDED FOR TIME-CRITICAL REMOVAL ACTION (TCRA) PLANNING AND OVERSIGHT SUPPORT ASSOCIATED WITH THE OLD C | $1,446,628 | $1,794,749 | June 7, 2023 | March 31, 2028 | Church Rock, NM | usaspending.gov |
| 68HE0925F0048 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS ESTABLISH A TASK ORDER 27 TO PROVIDE TECHNICAL SUPPORT TO REGION 6 FOR OVERSIGHT OF AN ONGOING PRP RI/FS A | $1,326,779 | $1,326,779 | June 2, 2025 | May 1, 2027 | Milan, NM | usaspending.gov |
| 68HE0923F0041 | Environmental Protection Agency | Delivery Order | 541620 | CONTRACTOR WILL PERFORM ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE QUIVIRA MINE FOR THE RESPONSE ASSESSMENT AND E | $1,269,861 | $4,671,623 | June 1, 2023 | April 10, 2028 | Rehoboth, NM | usaspending.gov |
| 68HE0923F0042 | Environmental Protection Agency | Delivery Order | 541620 | CONTRACTOR WILL ASSIST EPA IN COMMUNITY INVOLVEMENT OUTREACH SUPPORT INCLUDING CALLS, REMOTE MEETINGS AND FACE TO FACE ASSEMBLIES; WORK WILL | $1,207,090 | $1,427,163 | June 1, 2023 | April 9, 2028 | Window Rock, AZ | usaspending.gov |
| 68HE0923F0049 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PERFORM TASKS REQUIRED TO PROVIDE TECHNICAL ASSISTANCE TO USEPA FOR DATA AND RECORDS MANAGEMENT RELATED TO THE NAVAJO A | $1,149,811 | $1,604,799 | July 12, 2023 | July 12, 2027 | San Francisco, CA | usaspending.gov |
| 68HE0925F0051 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SUPPORT TO EPA REGION 6 IN FULFILLMENT OF ITS RESPONSIBILITIES FOR OVERSIGHT AND ENFO | $1,062,867 | $1,062,867 | August 6, 2025 | August 4, 2027 | Paguate, NM | usaspending.gov |
| 68HE0924F0055 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE TO USEPA FOR TECHNICAL ASSISTANCE TO THE CONTAMINATED STRUCTURES PROGRAM UNDER THE RAES 2 | $764,181 | $764,181 | June 26, 2024 | September 30, 2027 | Window Rock, AZ | usaspending.gov |
| 68HE0923F0070 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR THE REMAINING KNOWN 278 UNFUNDED AUMS AND MINE AREAS ON THE NAVAJO NATION UNDER THE NN-AUM RESP | $745,524 | $1,101,146 | September 13, 2023 | September 30, 2027 | Window Rock, AZ | usaspending.gov |
| 68HE0924F0051 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE SUPPORT REQUIRED FOR AGENCY OVERSIGHT OF THE UNITED NUCLEAR CORPORATION/GENERAL ELECTRIC (UNC/GE) WORK AT THE N | $385,687 | $385,687 | July 23, 2024 | April 9, 2028 | Rehoboth, NM | usaspending.gov |
| 68HE0923F0048 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL SUPPORT AGENCY OVERSITE OF REMOVAL SITE EVALUATIONS (RSES), INTERIM REMOVAL ACTIONS, WATER STUDIES, ENGINEERING EVALUAT | $356,412 | $439,775 | June 7, 2023 | June 6, 2028 | Window Rock, AZ | usaspending.gov |
| 697DCK25C00133 | Department of Transportation | Definitive Contract | 541715 | ENVIRONMENTAL ASSESSMENT REPLACEMENT OF THE AIR ROUTE SURVEILLANCE RADAR (ARSR) ON MT. KA`ALA, OAHU, HAWAII | $277,365 | $277,365 | April 28, 2025 | March 1, 2027 | Honolulu, HI | usaspending.gov |
| 68HE0923F0077 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE SUPPORT FOR NON TIME-CRITICAL REMOVAL ACTION PLANNING & OVERSIGHT SUPT ASSOCIATED W/ENPRO HOLDINGS ON NAVAJO NA | $267,535 | $428,850 | September 18, 2023 | April 30, 2028 | Tuba City, AZ | usaspending.gov |
| W9123823F0036 | Department of Defense | Delivery Order | 562910 | ALAMEDA SISWC | $165,460 | $1,768,525 | August 2, 2023 | June 24, 2025 | Alameda, CA | usaspending.gov |
| 68HE0923F0061 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OPERATING UNMANNED AERIAL VEHICLES & SYSTEMS ON NAVAJO NATION IN ACCORDANCE WITH THE P | $136,329 | $244,587 | July 25, 2023 | April 9, 2028 | Window Rock, AZ | usaspending.gov |
| 68HE0923F0078 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE SUPPORT NEEDED FOR NTCRA PLANNING AND OVERSIGHT SUPPORT ASSOCIATED WITH ABANDONED URANIUM MINE (AUM) ON BABBITT | $122,829 | $287,658 | September 18, 2023 | April 9, 2028 | Cameron, AZ | usaspending.gov |
| 68HE0925F0054 | Environmental Protection Agency | Delivery Order | 541620 | TO 29 IS TO TO PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) BNSF RAILWAY COMPANY (BNSF) AS THEY PER | $100,000 | $359,073 | July 1, 2025 | June 30, 2027 | Oakland, CA | usaspending.gov |
| 68HE0925F0047 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PERFORM OVERSITE AND TECHNICAL REVIEW FOR REMOVAL SITE EVALUATIONS (RSE) AND RISK ASSESSMENT DOCUMENTS FOR WELLS CARGO | $96,818 | $96,818 | April 23, 2025 | April 30, 2028 | Cameron, AZ | usaspending.gov |
| 68HE0926F0102 | Environmental Protection Agency | Delivery Order | 541620 | TEN (10) YEAR PLAN FOLLOW-ON TASK ORDER - NAVAJO NATION AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II FOR EPA FOR REGIONS 6 & 9. | $82,880 | $82,880 | September 28, 2026 | April 9, 2028 | San Francisco, CA | usaspending.gov |
| 68HE0924F0001 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL SUPPORT DEVELOPMENT OF THE FEDERAL ACTIONS TO ADDRESS IMPACTS OF URANIUM CONTAMINATION IN THE NAVAJO NATION 2020-2029 ( | $74,833 | $74,833 | November 2, 2023 | June 12, 2026 | San Francisco, CA | usaspending.gov |
| 68HE0923F0067 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) HOMESTAKE MINING COMPANY (HOMESTA | $50,000 | $265,624 | August 10, 2023 | August 9, 2027 | Gallup, NM | usaspending.gov |
| 68HE0926D0021 | Environmental Protection Agency | IDC | 541620 | WATER ASSESSMENT AND TECHNICAL EMERGENCY RESPONSE (WATER) - REGIONAL GROUPING A (REGIONS 1, 2, & 3) | $25,000 | $141,250,000 | September 29, 2026 | usaspending.gov | ||
| 68HE0923F0062 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) CHEVRON U.S.A. INC. AS THEY FINAL | $0 | $261,883 | July 17, 2023 | August 16, 2027 | Church Rock, NM | usaspending.gov |
| 68HE0923F0068 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) WESTERN NUCLEAR. AS THEY PERFORM | $0 | $266,078 | August 11, 2023 | August 10, 2027 | Cortaro, AZ | usaspending.gov |
| 68HE0923F0044 | Environmental Protection Agency | Delivery Order | 541620 | CONTRACTOR WILL PERFORM ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE SECTION 32/33 MINES FOR THE NAVAJO NATION AUM | $0 | $787,071 | June 5, 2023 | April 9, 2028 | Smith Lake, NM | usaspending.gov |
| 68HE0923D0002 | Environmental Protection Agency | IDC | 541620 | THE PURPOSE OF THIS IDIQ CONTRACT IS TO PROVIDE TECHNICAL ASSESSMENT SERVICES FOR THE ABANDONED URANIUM MINES ON AND AROUND THE NAVAJO NATIO | $0 | $98,000,000 | April 7, 2023 | usaspending.gov | ||
| W912PP22D0018 | Department of Defense | IDC | 562910 | ENVIRONMENTAL REMEDIATION SERVICES (ERS) MATOC FOR SPD, MULTIPLE ENVIRONMENTAL GOVERNMENT ACQUISITION (MEGA). | $0 | $50,000,000 | September 26, 2022 | usaspending.gov | ||
| 68HE0923F0066 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) EL PASO NATURAL GAS (EPNG) UNDER | $0 | $789,474 | August 9, 2023 | August 9, 2027 | Cameron, AZ | usaspending.gov |
| 68HE0923F0069 | Environmental Protection Agency | Delivery Order | 541620 | THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE TASKS TO SUPPORT AGENCY OVERSIGHT OF REMOVAL SITE EVALUATIONS (RSES), INTERIM REMOVAL ACTI | $0 | $582,364 | August 15, 2023 | August 14, 2027 | Monument Valley, UT | usaspending.gov |
| 0003 | Environmental Protection Agency | Delivery Order | 541620 | IGF::OT:IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE QUIVERA MINE SITE LOCATED ON THE NAVAJO NATION. TO #003 | $-42 | $1,478,798 | January 19, 2018 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0921F0067 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO UPDATE THE DRAFT EE/CA PREPARED BY START AND SUPPORT EPA THROUGH PUBLIC MEETINGS AND RESPONSES TO COMME | $-261 | $386,500 | August 15, 2021 | October 7, 2023 | Window Rock, AZ | usaspending.gov |
| 68HE0919F0040 | Environmental Protection Agency | Delivery Order | 541620 | IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE NAUM PROJECT MANAGEMENT REQUIREMENT. THIS WILL BE TASK | $-1,490 | $231,335 | March 22, 2019 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0922F0051 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS A REMOVAL ASSESSMENT AT THE OLD CHURCH ROCK MINE SITE IN THE CHURCH ROCK CHAPTER OF THE NAVAJO NATION, NEW | $-1,599 | $421,849 | August 16, 2022 | October 7, 2023 | Window Rock, AZ | usaspending.gov |
| W912PP22F0036 | Department of Defense | Delivery Order | 562910 | MINIMUM GUARANTEE TASK ORDER FOR MEGA MATOC | $-2,500 | $0 | September 26, 2022 | September 25, 2027 | Albuquerque, NM | usaspending.gov |
| 68HE0919F0104 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SUPPORT FOR NAVAJO CONTAMINATED STRUCTURES PROGRAM REMOVAL. THIS WILL BE TASK ORDER # | $-8,287 | $202,474 | August 29, 2019 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0920F0006 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE BABBIT RANCHES RSE AND EE/CA. THIS WILL BE TO #00025(68HE0920F0006) | $-21,899 | $351,883 | November 4, 2019 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 0006 | Environmental Protection Agency | Delivery Order | 541620 | IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL ASSISTANCE WITH THE DEVELOPMENT OF THE NAVAJO TEN-YEAR PLAN. TO #0006 | $-29,843 | $84,327 | March 9, 2018 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0919F0073 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE ENPRO/A&B CORPS AUMS. THIS WILL BE TASK ORDER 00022 (68HE0919F0073)U | $-38,338 | $189,289 | July 17, 2019 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0920F0071 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SUPPORT FOR NECR. THIS WILL BE TO #00027(68HE0920F0071) UNDER CONTRACT #EPS91703- RAE | $-39,262 | $1,283 | June 24, 2020 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 0005 | Environmental Protection Agency | Delivery Order | 541620 | IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL PRP OVERSIGHT SERVICES FOR THE CYPRUS AMEX RSE EFFORT ON THE NAVAJO NATI | $-50,166 | $267,875 | February 8, 2018 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0918F0368 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE SKYLINE MINE RSE EFFORTS AND WILL BE ASSIGNED TO #0007 UNDER THE RAE | $-76,038 | $737,306 | June 19, 2018 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 0002 | Environmental Protection Agency | Delivery Order | 541620 | IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE OVERSIGHT SERVICES FOR THE PHASE 2 RSE TRUST. | $-99,488 | $225,560 | January 19, 2018 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0919F0122 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IT TO PROVIDE TECHNICAL SUPPORT FOR THE CONTAMINATED STRUCTURES PROGRAM ASSESSMENT MANAGEMENT. THIS WILL BE T | $-145,726 | $700,036 | September 19, 2019 | October 7, 2023 | San Francisco, CA | usaspending.gov |
| 68HE0920F0027 | Environmental Protection Agency | Delivery Order | 541620 | THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR NAUM DATA SUPPORT. THIS WILL BE TO #26 (68HE0920F0027) UNDER CONTRACT #E | $-155,309 | $893,240 | March 4, 2020 | October 7, 2023 | San Francisco, CA | usaspending.gov |
Also on SpecStream
- All recipients under NAICS 541620 Environmental Consulting Services
- All recipients under NAICS 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- All recipients under NAICS 562910 Remediation Services
- Open opportunities under NAICS 541620
- Open opportunities under NAICS 541715
- Open opportunities under NAICS 562910
Updated October 6, 2026. Read from USAspending.gov. Public U.S. federal spending data (U.S. Department of the Treasury). Obligations are the contract actions dated in fiscal years 2024 to 2027 of the USAspending.gov award archive of 2026-10-06; a contract's total value is its current value as USAspending reports it, including earlier years. Recipients are matched on their SAM.gov UEI, never on the name, and are shown as the government prints them. Sole proprietorships and opted-out entities count in the totals and are not named. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.