TETRA TECH, INC.
OAKLAND, California
Total Received
$81.0M
Total Awards
47
State
California
Last Updated
Feb 18, 2026
Yearly Funding Trend
$77.6M24
$1.7M25
$1.6M26
Top 47 Awards to TETRA TECH, INC.
Largest individual federal awards on record for this recipient, ranked by obligated amount. Data through February 18, 2026.
| Award | Awarding Agency | Program | Place | FY | Obligation |
|---|---|---|---|---|---|
CONT_AWD_68HE0919F0017_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS IS MODIFICATION #P00022 TO TASK ORDER #16(68HE0919F0017) UNDER THE RAES CONTRACT #EPS91703. | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $14,550,934 |
CONT_AWD_68HE0923F0051_6800_68HE0923D0002_6800 THE PURPOSE OF THIS BILATERAL MOD IS FOR A NO-COST TIME EXTENSION FOR N. AGENCY EE/CA - TO #0007 (DO #68HE0923F0051) ON RAES2 CONTRACT #68HE0923D0002. THIS EXTENDS THE PERIOD OF P… | Environmental Protection Agency Environmental Protection Agency | — | ROUND ROCK, AZ-02 | 2024 | $14,279,978 |
CONT_AWD_68HE0923F0074_6800_68HE0923D0002_6800 THE PURPOSE OF THIS MODIFICATION IS TO ADD AN ADDITIONAL ALTERNATE TOCOR. | Environmental Protection Agency Environmental Protection Agency | — | LUKACHUKAI, AZ-02 | 2024 | $10,655,361 |
CONT_AWD_68HE0923F0072_6800_68HE0923D0002_6800 THE PURPOSE OF THIS NO-COST, BILATERAL MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE; TO 16 UNDER RAES 2 CONTRACT #68HE0923D0002. | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $6,096,625 |
CONT_AWD_68HE0923F0041_6800_68HE0923D0002_6800 THE PURPOSE OF THIS BILATERAL MOD IS TO ADD SCOPE AND FUNDING. CONTRACTOR WILL PERFORM ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE QUIVIRA MINE FOR THE R… | Environmental Protection Agency Environmental Protection Agency | — | GALLUP, NM-03 | 2024 | $4,671,623 |
CONT_AWD_68HE0920F0105_6800_EPS91703_6800 THE PURPOSE OF THIS MODIFICATION IS TO CHANGE THE ALTERNATE TOCOR. THIS WILL BE MODIFICATION P00005 FOR TO# 28 (68HE0920F105) UNDER CONTRACT #EPS91703 (RAES). | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $3,792,239 |
CONT_AWD_68HE0923F0073_6800_68HE0923D0002_6800 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… | Environmental Protection Agency Environmental Protection Agency | — | RED VALLEY, AZ-02 | 2024 | $3,692,684 |
CONT_AWD_68HE0924F0004_6800_68HE0923D0002_6800 THE PURPOSE OF MODIFICATION P00006 IS TO EXTEND THE PERIOD OF PERFORMANCE (POP) AND ADD AN ADDITIONAL ALTERNATE TOCOR (ATOCOR) FOR THE RSE AT THE SKYLINE AUM UNDER THE RAES II CON… | Environmental Protection Agency Environmental Protection Agency | — | MONUMENT VALLEY, UT-03 | 2024 | $3,386,462 |
CONT_AWD_68HE0922F0024_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS IS MOD P00007 FOR RAES CONTRACT EPS91703, TASK ORDER 34. | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $3,061,433 |
CONT_AWD_W9123823F0036_9700_W912PP22D0018_9700 REA MODIFICATION | Department of Defense Department of the Army | — | ALAMEDA, CA-12 | 2025 | $1,734,283 |
CONT_AWD_0003_6800_EPS91703_6800 THE PURPOSE OF THIS UNLITERAL MODIFICATION IS TO CHANGE THE COR. THIS WILL BE MODIFICATION P00009 FOR TASK ORDER 0003 UNDER CONTRACT #EP-S9-17-03 (RAES). | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $1,478,840 |
CONT_AWD_68HE0923F0071_6800_68HE0923D0002_6800 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 #68H… | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $1,447,893 |
CONT_AWD_68HE0924F0017_6800_68HE0923D0002_6800 THE CONTRACTOR SHALL PROVIDE TECHNICAL SUPPORT TO USEPA, REGION 6, IN FULFILLMENT OF ITS RESPONSIBILITIES FOR OVERSIGHT & ENFORCEMENT OF A GROUNDWATER RI/FS BEING PERFORMED BY PRP… | Environmental Protection Agency Environmental Protection Agency | — | BLUEWATER, NM-02 | 2024 | $947,887 |
CONT_AWD_68HE0920F0027_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DEOBLIGATE UNLIQUIDATED FUNDS. TO PROVIDED TECHNICAL SERVICES FOR NAUM DATA SUPPORT. RAES TO #26 (DO #68HE0920F0027) - MOD P00011. | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $893,240 |
CONT_AWD_68HE0918F0368_6800_EPS91703_6800 THE PURPOSE OF THIS BILATERAL MODIFICATION P00011 IS TO EXTEND THE POP. THIS TO IS FOR THE REMOVAL SITE EVALUATIONS (RSE) AT THE SKYLINE MINE, UT. | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $813,343 |
CONT_AWD_68HE0923F0066_6800_68HE0923D0002_6800 THE PURPOSE OF THIS CONTRACT MODIFICATION IS TO CORRECT CLIN 0001 PERIOD OF PERFORMANCE END DATE FROM AUGUST 09,2025 TO AUGUST 09,2027. | Environmental Protection Agency Environmental Protection Agency | — | CAMERON, AZ-02 | 2026 | $789,474 |
CONT_AWD_68HE0924F0055_6800_68HE0923D0002_6800 THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE TO USEPA FOR TECHNICAL ASSISTANCE TO THE CONTAMINATED STRUCTURES PROGRAM UNDER THE RAES 2 CONTRACT. | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $764,181 |
CONT_AWD_68HE0919F0122_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNLIQUIDATED FUNDS.CONTRACTOR SHALL PROVIDE TECHNICAL SUPPORT FOR THE NAVAJO CONTAMINATED STRUCTURES PROGRAM (CSP). T… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $700,036 |
CONT_AWD_68HE0923F0069_6800_68HE0923D0002_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO ADD A PTOCOR AND ATOCOR FOR THIS TO FOR THE REMOVAL SITE EVALUATIONS (RSES) AT THE ABANDONED URANIUM MINES (AUMS) AND MINE AREAS… | Environmental Protection Agency Environmental Protection Agency | — | DENNEHOTSO, AZ-01 | 2024 | $582,364 |
CONT_AWD_68HE0923F0049_6800_68HE0923D0002_6800 THE PURPOSE OF THIS BILATERAL MOD IS TO EXTEND THE POP, CHANGE TOCORS, AND ADD FUNDS, AND SCOPE. THE CONTRACTOR PROVIDES TA FOR DATA AND RECORDS MANAGEMENT RELATED TO THE NAVAJO A… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $562,975 |
CONT_AWD_68HE0923F0042_6800_68HE0923D0002_6800 MOD TO EXTEND THE POP AND AMEND LANGUAGE WITHIN SOW. | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $457,618 |
CONT_AWD_68HE0918F0380_6800_EPS91703_6800 THE PURPOSE OF THIS TASK ORDER IS TO EXTEND THE PERIOD OF PERFORMANCE TO OCTOBER 7, 2023. THIS WILL BE MODIFICATION P00005 FOR TASK ORDER #0009 (68HE0918F0380), UNDER CONTRACT # E… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $437,050 |
CONT_AWD_68HE0923F0077_6800_68HE0923D0002_6800 THE PURPOSE OF THIS BILATERAL MODIFICATION P00004 IS TO INCREASE LEVEL OF EFFORT, ADD FUNDING, AND EXTEND THE POP. CONTRACTOR SHALL PROVIDE SUPPORT FOR NTCRA PLANNING & OVERSIGHT… | Environmental Protection Agency Environmental Protection Agency | — | TUBA CITY, AZ-02 | 2024 | $428,850 |
CONT_AWD_68HE0922F0051_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS IS MOD P00003 FOR TASK ORDER 68HE0922F0051 (TO 35). TO IS FOR RA AT THE OLD CHURCH ROCK MINE SITE IN… | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $421,849 |
CONT_AWD_68HE0921F0067_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION DE-OBLIGATE UNUSED FUNDS IN PREPARATION FOR CLOSEOUT. THIS IS MOD P00005 FOR RAES CONTRACT EPS91703, TO 31. | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $386,500 |
CONT_AWD_68HE0924F0051_6800_68HE0923D0002_6800 THE CONTRACTOR SHALL PROVIDE SUPPORT REQUIRED FOR AGENCY OVERSIGHT OF THE UNITED NUCLEAR CORPORATION/GENERAL ELECTRIC (UNC/GE) WORK AT THE NORTHEAST CHURCH ROCK (NECR) MINE SITE U… | Environmental Protection Agency Environmental Protection Agency | — | REHOBOTH, NM-03 | 2024 | $385,687 |
CONT_AWD_68HE0923F0070_6800_68HE0923D0002_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO ADD ALTERNATE TOCOR. THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR THE REMAINING KNOWN 278 UNFUNDED AUMS AND MINE AREAS ON THE NAVAJO NATIO… | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $355,622 |
CONT_AWD_68HE0920F0006_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OB UNUSED FUNDS IN PREPARATION FOR CLOSEOUT. THIS WILL BE MODIFICATION P00008 OF TO #00025(68HE0920F0006) UNDER CONTRACT #EPS91703 (RAE… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $351,883 |
CONT_AWD_68HE0923F0045_6800_68HE0923D0002_6800 THE PURPOSE OF THIS BILATERAL MODIFICATION IS TO EXTEND THE POP. TO IS FOR TIME-CRITICAL REMOVAL ACTION (TCRA) PLANNING AND OVERSIGHT SUPPORT ASSOCIATED WITH THE OLD CHURCH ROCK M… | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $348,121 |
CONT_AWD_697DCK25C00133_6920_-NONE-_-NONE- ENVIRONMENTAL ASSESSMENT REPLACEMENT OF THE AIR ROUTE SURVEILLANCE RADAR (ARSR) ON MT. KA`ALA, OAHU, HAWAII | Department of Transportation Federal Aviation Administration | — | HONOLULU, HI-01 | 2026 | $277,365 |
CONT_AWD_0005_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS IN PREPARATION FOR CLOSEOUT. THIS WILL BE MODIFICATION P00011 TO TASK ORDER 0005, UNDER RAES 1 CONTRACT… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $267,875 |
CONT_AWD_68HE0923F0062_6800_68HE0923D0002_6800 THE PURPOSE OF THIS NO-COST, UNILATERAL MODIFICATION P00002 IS TO CORRECT CLIN 0001 PERIOD OF PERFORMANCE (POP) DATES. | Environmental Protection Agency Environmental Protection Agency | — | CHURCH ROCK, NM-03 | 2026 | $261,883 |
CONT_AWD_68HE0919F0040_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS IN PREPARATION FOR CLOSE-OUT. | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $231,335 |
CONT_AWD_0002_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNUSED FUNDS IN PREP FOR CLOSEOUT. THIS IS MODIFICATION P00013 FOR TO 0002 OF RAES 1 CONTRACT EPS91703. | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $225,560 |
CONT_AWD_68HE0923F0061_6800_68HE0923D0002_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DESIGNATE DANIELLE HUANG AS PRIMARY COR AND KENYON LARSEN AS ALT COR TO FOR UAV SUPPORT ON NAVAJO NATION IN ACCORDANCE UNDER THE… | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2026 | $205,630 |
CONT_AWD_68HE0919F0104_6800_EPS91703_6800 THE PURPOSE OF THIS MODIFICATION IS TO TO EXTEND THE PERIOD OF PERFORMANCE FOR TASK ORDER #00023 (68HE0919F0104) UNDER CONTRACT #EPS91703 (RAES) TO OCTOBER 7, 2023. THIS IS MOD P0… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $202,474 |
CONT_AWD_68HE0919F0073_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MODIFICATION IS TO DE-OBLIGATE UNUSED FUNDS IN PREPARATION FOR CLOSE-OUT. THIS WILL BE MODIFICATION P00007 FOR TASK ORDER 00022 (68HE0919F0073)UNDER… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $189,289 |
CONT_AWD_68HE0923F0078_6800_68HE0923D0002_6800 THE PURPOSE OF THIS BILATERAL MOD IS TO INCORPORATE CHANGES INTO THE SOW. THE CONTRACTOR SHALL PROVIDE SUPPORT NEEDED FOR NTCRA PLANNING AND OVERSIGHT ON BABBITT RANCHES UNDER RAE… | Environmental Protection Agency Environmental Protection Agency | — | CAMERON, AZ-02 | 2024 | $164,829 |
CONT_AWD_68HE0920F0106_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OBLIGATE UNLIQUIDATED FUNDS. THIS WILL BE MOD P00004 FOR TASK ORDER 00029(68HE0920F0106) UNDER CONTRACT #EPS91703 (RAES). | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $110,377 |
CONT_AWD_68HE0923F0067_6800_68HE0923D0002_6800 THE PURPOSE OF THIS NO-COST UNILATERAL MODIFICATION P00003 IS TO CORRECT CLIN 0001 PERIOD OF PERFORMANCE (POP) DATES. | Environmental Protection Agency Environmental Protection Agency | — | GALLUP, NM-03 | 2026 | $100,000 |
CONT_AWD_0006_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DE-OB UNUSED FUNDS IN PREPARATION FOR TO CLOSEOUT. THIS WILL BE MODIFICATION P00012 FOR TASK ORDER 0006, UNDER CONTRACT # EPS91703. THIS T… | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $84,327 |
CONT_AWD_68HE0923F0048_6800_68HE0923D0002_6800 THE PURPOSE OF THIS BILATERAL MOD IS TO EXTEND THE POP. THE CONTRACTOR SHALL SUPPORT AGENCY OVERSITE OF RSES,, INTERIM RAS, WATER STUDIES, EE/CAS, AND RAS AT THE ABANDONED URANIUM… | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $83,362 |
CONT_AWD_68HE0924F0001_6800_68HE0923D0002_6800 THE CONTRACTOR SHALL SUPPORT DEVELOPMENT OF THE FEDERAL ACTIONS TO ADDRESS IMPACTS OF URANIUM CONTAMINATION IN THE NAVAJO NATION 2020-2029 (TEN-YEAR PLAN) UNDER THE RAES 2 CONTRAC… | Environmental Protection Agency Environmental Protection Agency | — | WINDOW ROCK, AZ-01 | 2024 | $74,833 |
CONT_AWD_68HE0920F0071_6800_EPS91703_6800 THE PURPOSE OF THIS UNILATERAL MOD IS TO DEOBLIGATE UNLIQUIDATED FUNDS. THIS WILL BE MOD P00005 FOR TO #00027(68HE0920F0071) UNDER CONTRACT #EPS91703-RAES. | Environmental Protection Agency Environmental Protection Agency | — | SAN FRANCISCO, CA-11 | 2024 | $39,262 |
CONT_IDV_W912PP22D0018_9700 MEGA ENVIRONMENTAL REMEDIATION SERVICES. MOD EXERCISES OPTION PERIOD. | Department of Defense Department of the Army | — | — | 2024 | $0 |
CONT_IDV_68HE0923D0002_6800 THIS UNILATERAL MODIFICATION REVISES THE MOBILIZATION POINTS FOR TASK ORDERS. THIS IS MOD P00005 FOR THE RAES 2 CONTRACT. | Environmental Protection Agency Environmental Protection Agency | — | — | 2024 | $0 |
CONT_AWD_W912PP22F0036_9700_W912PP22D0018_9700 MEGA ENVIRONMENTAL REMEDIATION SERVICES. MOD DE-OBLIGATES MINIMUM GUARANTEE. | Department of Defense Department of the Army | — | ALBUQUERQUE, NM-01 | 2024 | $0 |
Top 47 awards shown, ranked by obligated amount. Dates reflect performance period; last-modified dates match USAspending.gov. Complete listings include all transaction history going back to FY2024.
Source: USAspending.gov · All Recipients · California