What is TETRA TECH's OSHA violation history?

TETRA TECH has no OSHA inspections on record.

Establishment profile

TETRA TECH

CA, 94612
EIN 953983702

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OSHA inspections

Violations

Penalties

Context

No OSHA inspections on record. This does not mean the employer is violation-free — OSHA inspects a small fraction of workplaces annually.

Summary

TETRA TECH has no OSHA inspection history on file. Federal records covering wage, environmental, labor relations, and other agencies are noted below where present.

The most recent federal enforcement activity was recorded 0 days ago.

Federal records were found in 1 of 15 sources. Sources without matching records returned empty for this establishment.

Agency coverage

TETRA TECH appears in NLRB labor relations record only. No matching records were found in OSHA workplace safety, WHD wage enforcement, MSHA mine safety, EPA environmental compliance, OFLC visa and labor certification, FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, UVA Corporate Prosecution Registry, CPSC product recalls, or NHTSA vehicle recalls. Single-agency enforcement records typically indicate either a discrete incident-based inspection or a low-risk operational profile.

OSHA workplace safety

No OSHA inspections, citations, or accidents on file for TETRA TECH. Verify directly with Occupational Safety and Health Administration →

Safety self-report (OSHA 300A)

Recordable injury rates the employer filed with OSHA’s Injury Tracking Application. DART covers cases with days away, restricted, or transferred; TRIR is the total recordable case rate.

DART rate

0.7

vs industry

—

TRIR

0.7

vs industry

—

Reported for 151 average annual employees at this establishment.

Source: OSHA ITA Form 300A (employer self-reported). Rates are per 100 full-time equivalent workers. Establishments below the ~10-FTE threshold are not required to report.

OSHA severe injury reports

No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for TETRA TECH. Verify directly with Occupational Safety and Health Administration →

Activity timeline

Data refreshed

Weekly

First OSHA inspection

—

Most recent activity

0 days ago

Most recent federal enforcement activity recorded 0 days ago. Data on this page is refreshed weekly.

Wage & Hour Division (WHD)

No WHD wage, overtime, or child-labor enforcement cases on file for TETRA TECH. Verify directly with Wage and Hour Division →

Mine safety (MSHA)

No MSHA mine safety violations on file for TETRA TECH. Verify directly with Mine Safety and Health Administration →

Labor relations (NLRB)

Company-level in CA — for TETRA TECH, not this location alone

Total cases

Unfair labor practice

National Labor Relations Board — unfair labor practice charges and union representation cases. The NLRB records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other TETRA TECH locations in the same state.

Visa & labor certification (OFLC)

No H-1B, H-2A, or H-2B labor condition applications on file for TETRA TECH. Verify directly with Office of Foreign Labor Certification →

Environmental compliance (EPA)

No EPA inspections or formal enforcement actions on file for TETRA TECH. Verify directly with Environmental Protection Agency →

Federal criminal prosecution record

No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for TETRA TECH. Verify directly with UVA Corporate Prosecution Registry →

Federal contracts

This location

Obligated (5-yr)

$72.9M

Obligated (all-time)

$101.5M

Awards

Top agency

Environmental Protection Agency

$97.8M

Company-wide — TETRA TECH, INC. (across 172 entities)

Obligated (5-yr)

$3.7B

Obligated (all-time)

$12.9B

Awards (all-time)

11,007

Consolidated across all USAspending recipient entities under this corporate parent — not attributable to this single location.

Top agencies by obligation (this location)

Environmental Protection Agency$97.8M

Department of Defense$1.8M

Department of Agriculture$1.5M

Department of Transportation$277K

Department of the Interior$211K

Largest awards (top 50 of 87)

Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE NORTHERN AGENCY RISK ASSESSMENT AND EE/CA. THIS WILL BE ASSIGNED TO TASK ORDER #00016(68HE0919F0017) UNDER THE RAES CONTRACT #EPS91703.
contract · Last action 2024-06-06
$14,550,934
Environmental Protection Agency
THE CONTRACTOR SHALL PERFORM REQUIRED TO CONDUCT THE ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE FOLLOWING TRONOX ABANDONED URANIUM MINES LOCATED IN NAVAJO NATION'S NORTHERN AGENCY. THIS IS A TASK ORDER UNDER RAES 2 CON
contract · Last action 2026-01-02
$14,279,978
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE THE SUPPORT NEEDED FOR TECHNICAL DESIGN SERVICES,& PLANNING AND CONDUCTING CLEANUP VERIFICATION OF TCRAS, PILOT STUDIES, OR OTHER INTERIM ACTIONS AT TRONOX AUMS UNDER THE RAES II CONTRACT #68HE0923D0002 FOR EPA FOR RE
contract · Last action 2025-12-17
$10,655,361
Environmental Protection Agency
THE CONTRACTOR PROVIDE TECHNICAL SUPPORT AND ASSISTANCE FOR THE USEPA NAVAJO ABANDONED URANIUM MINES (NAUM) PROGRAM AS IT DEVELOPS PROGRAM STANDARDS, TRAININGS AND WORKSHOPS, AND OTHER TECHNICAL SUPPORT WORK NEEDED FOR SITE INVESTIGATION.
contract · Last action 2025-09-05
$8,393,088
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE REMOVAL SITE EVALUATIONS (RSES)FOR TRONOX ABANDONED URANIUM MINES IN THE NORTHERN AGENCY OF THE NAVAJO NATION NAVAJO.
contract · Last action 2020-09-09
$6,396,224
Environmental Protection Agency
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
contract · Last action 2025-12-05
$6,096,625
Environmental Protection Agency
CONTRACTOR WILL PERFORM ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE QUIVIRA MINE FOR THE RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II CONTRACT FOR EPA FOR REGIONS 6 & 9.
contract · Last action 2024-11-18
$4,671,623
Environmental Protection Agency
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
contract · Last action 2026-03-31
$3,692,684
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE SUPPORT FOR REMOVAL SITE EVALUATIONS (RSE) AT THE SKYLINE AUM WHICH ENCOMPASSES SKYLINE MINE AND UTAH NO. 1 LEASE IN OLJATO-MONUMENT VALLEY, UTAH UNDER THE NN-AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II CONT
contract · Last action 2025-12-29
$3,386,462
Environmental Protection Agency
CONTRACTOR WILL PROVIDE SUPPORT FOR TECHNICAL DESIGN SERVICES FOR, AND PLANNING AND CONDUCTING CLEANUP VERIFICATION OF, TIME-CRITICAL REMOVAL ACTIONS (TCRAS) AND RELATED AREAS IN THE NAVAJO NATION.
contract · Last action 2024-06-12
$3,061,433
Environmental Protection Agency
THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE NAUM EE/CA STANDARDS DEVELOPMENT. THIS WILL BE TO# 28 (68HE0920F105) UNDER CONTRACT #EPS91703 (RAES).
contract · Last action 2024-06-12
$2,461,252
Department of Defense
ALAMEDA SISWC
contract · Last action 2025-06-05
$1,768,525
Environmental Protection Agency
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 SSID 09QM
contract · Last action 2024-06-07
$1,478,798
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE SUPPORT NEEDED FOR TIME-CRITICAL REMOVAL ACTION (TCRA) PLANNING AND OVERSIGHT SUPPORT ASSOCIATED WITH THE OLD CHURCH ROCK MINE SITE, AS WELL AS PLANNING AND SCOPING FOR A NON-TIME CRITICAL REMOVAL ACTION (NTCRA) ENGINEERI
contract · Last action 2025-07-01
$1,199,648
Department of Agriculture
TAS::12 1102::TAS WORLD'S FAIR MINE ADIT - ACID MINE DRAINAGE REMEDIATION
contract · Last action 2011-01-11
$1,105,952
Environmental Protection Agency
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 PRPS AT THE SAN MATEO CREEK BASIN LEGACY URANIUM SITES UNDER THE RAES
contract · Last action 2024-05-13
$947,887
Environmental Protection Agency
THE CONTRACTOR SHALL PERFORM TASKS REQUIRED TO PROVIDE TECHNICAL ASSISTANCE TO USEPA FOR DATA AND RECORDS MANAGEMENT RELATED TO THE NAVAJO AUM PROGRAM. THIS IS TASK ORDER 6 FOR THE RAES 2 CONTRACT, #68HE09D0002 FOR USEPA REGIONS 6 & 9.
contract · Last action 2025-07-11
$933,533
Environmental Protection Agency
THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR NAUM DATA SUPPORT. THIS WILL BE TO #26 (68HE0920F0027) UNDER CONTRACT #EPS91703 (RAES).
contract · Last action 2024-06-06
$893,240
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) EL PASO NATURAL GAS (EPNG) UNDER RAES 2 CONTRACT 68HE0923D0002.
contract · Last action 2025-10-23
$789,474
Environmental Protection Agency
CONTRACTOR WILL PERFORM ENGINEERING EVALUATION/COST ANALYSIS (EE/CA) AND RELATED TASKS AT THE SECTION 32/33 MINES FOR THE NAVAJO NATION AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II CONTRACT FOR EPA FOR REGIONS 6 & 9.
contract · Last action 2024-11-19
$787,071
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE TO USEPA FOR TECHNICAL ASSISTANCE TO THE CONTAMINATED STRUCTURES PROGRAM UNDER THE RAES 2 CONTRACT.
contract · Last action 2025-06-05
$764,181
Environmental Protection Agency
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 RAES CONTRACT (EP-S9-17-03).
contract · Last action 2024-06-11
$737,306
Environmental Protection Agency
THE PURPOSE OF THIS TASK ORDER IT TO PROVIDE TECHNICAL SUPPORT FOR THE CONTAMINATED STRUCTURES PROGRAM ASSESSMENT MANAGEMENT. THIS WILL BE TASK ORDER #00024(68HE09019F0122) ON THE RAES CONTRACT #EPS91703.
contract · Last action 2024-06-07
$700,036
Environmental Protection Agency
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 AND GOVERNMENT RI/FS AT THE HOMESTAKE MINING COMPANY UNDER THE RAES 2 CONTRACT.
contract · Last action 2026-04-15
$685,955
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE TASKS TO SUPPORT AGENCY OVERSIGHT OF REMOVAL SITE EVALUATIONS (RSES), INTERIM REMOVAL ACTIONS, ENGINEERING EVALUATION AND COST ANALYSIS (EE/CA), AND ANY OTHER ACTIVITY AT THE ABANDONED URANIUM MINES (
contract · Last action 2025-06-24
$582,364
Environmental Protection Agency
THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SUPPORT TO EPA REGION 6 IN FULFILLMENT OF ITS RESPONSIBILITIES FOR OVERSIGHT AND ENFORCEMENT OF ARCO'S ONGOING RI/FS UNDER THE ASAOC AND TO ASSIST EPA IN COORDINATION AND COMMUNICATION WITH
contract · Last action 2025-08-06
$539,685
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE EVALUATIONS FOR THE REMAINING KNOWN 278 UNFUNDED AUMS AND MINE AREAS ON THE NAVAJO NATION UNDER THE NN-AUM RESPONSE ASSESSMENT AND EVALUATION SERVICES (RAES) II CONTRACT FOR EPA FOR REGIONS 6 & 9.
contract · Last action 2025-03-13
$529,309
Environmental Protection Agency
CONTRACTOR WILL ASSIST EPA IN COMMUNITY INVOLVEMENT OUTREACH SUPPORT INCLUDING CALLS, REMOTE MEETINGS AND FACE TO FACE ASSEMBLIES; WORK WILL ALSO INVOLVE RESEARCH FOR EPA.
contract · Last action 2025-10-22
$457,618
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE COVE AIR STUDY ON THE NAVAJO NATION. THIS WILL BE TASK ORDER #00012(68HE0918F0389) UNDER THE RAES CONTRACT.
contract · Last action 2023-07-12
$447,967
Environmental Protection Agency
THE CONTRACTOR SHALL SUPPORT AGENCY OVERSITE OF REMOVAL SITE EVALUATIONS (RSES), INTERIM REMOVAL ACTIONS, WATER STUDIES, ENGINEERING EVALUATIONS AND COST ANALYSIS (EE/CAS), AND REMOVAL ACTIONS AT THE ABANDONED URANIUM MINES (AUMS) AND MINE AREAS NAME
contract · Last action 2025-09-29
$439,775
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE PRP OVERSIGHT SERVICES FOR THE EPNG MINES RSES AND EE/CA - RAES TO #0009 (68HE0918F0380)
contract · Last action 2024-04-12
$437,050
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE SUPPORT FOR NON TIME-CRITICAL REMOVAL ACTION PLANNING & OVERSIGHT SUPT ASSOCIATED W/ENPRO HOLDINGS ON NAVAJO NATION UNDER THE RESPONSE ASSESSMENT & EVALUATION SERVICES (RAES) II CONTRACT #68HE0923D0002.
contract · Last action 2026-02-18
$428,850
Environmental Protection Agency
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 MEXICO. THIS IS TASK ORDER 35.
contract · Last action 2024-06-12
$421,849
Environmental Protection Agency
THE CONTRACTOR SHALL PERFORM A TREATABILITY STUDY USING ABLATION (ALSO KNOWN AS KINETIC SEPARATION) ON URANIUM MINE WASTE PER THE SOW AND TETRA TECH WORKPLAN.
contract · Last action 2022-08-24
$410,947
Environmental Protection Agency
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 COMMENTS ON THE EE/CA. TO 31
contract · Last action 2023-11-28
$386,500
Environmental Protection Agency
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 UNDER RAES 2 CONTRACT.
contract · Last action 2025-02-19
$385,687
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE CREATION OF THE NAUM MANUAL. THIS WILL BE TASK ORDER #00013(68HE0918F0415) UNDER THE RAES CONTRACT.
contract · Last action 2023-07-12
$361,922
Environmental Protection Agency
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) UNDER CONTRACT #EPS91703 (RAES)
contract · Last action 2024-06-05
$351,883
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE SUPPORT NEEDED FOR NTCRA PLANNING AND OVERSIGHT SUPPORT ASSOCIATED WITH ABANDONED URANIUM MINE (AUM) ON BABBITT RANCHES UNDER RAES 2 CONTRACT #68HE0923D0002.
contract · Last action 2025-06-25
$287,658
Department of Transportation
ENVIRONMENTAL ASSESSMENT REPLACEMENT OF THE AIR ROUTE SURVEILLANCE RADAR (ARSR) ON MT. KA`ALA, OAHU, HAWAII
contract · Last action 2026-02-04
$277,365
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE SAMPLING SUPPORT FOR THE MESA II REMOVAL ACTION. THIS WILL BE TASK ORDER 00021(68HE0919F0066) ON RAES CONTRACT #EPS91703.
contract · Last action 2020-11-05
$270,753
Environmental Protection Agency
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 NATION.
contract · Last action 2024-01-18
$267,875
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) WESTERN NUCLEAR. AS THEY PERFORM ENGINEERING EVALUATIONS/COST ANALYSES (EE/CAS) AND REMOVAL ACTIONS (RAS) IN THE MARIANO LAKE AREA OF THE EASTE
contract · Last action 2025-09-19
$266,078
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OVERSIGHT OF THE POTENTIALLY RESPONSIBLE PARTY (PRP) CHEVRON U.S.A. INC. AS THEY FINALIZE AN ENGINEERING EVALUATIONS/COST ANALYSES (EE/CA) FOR THE MARIANO LAKE MINE IN THE EASTERN AGENCY OF THE NA
contract · Last action 2025-12-08
$261,883
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE NAUM PROJECT MANAGEMENT REQUIREMENT. THIS WILL BE TASK ORDER #00018(68HE0919F0040) UNDER CONTRACT # EP-S9-17-03, RAES.
contract · Last action 2024-06-05
$231,335
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SERVICES FOR THE COVE TRONOX NAUM MINE WASTE REDUCTION, AZ - TO #004
contract · Last action 2020-09-25
$228,604
Environmental Protection Agency
IGF::OT::IGF THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE OVERSIGHT SERVICES FOR THE PHASE 2 RSE TRUST.
contract · Last action 2024-01-17
$225,560
Environmental Protection Agency
THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE SUPPORT TO COMMUNITY INVOLVEMENT COORDINATORS (CICS) AND REMEDIAL PROJECT MANAGERS (RPMS) IN COORDINATING AND CONDUCTING OUTREACH TO THE AFFECTED NAUM COMMUNITIES.
contract · Last action 2023-09-20
$219,597
Environmental Protection Agency
THE CONTRACTOR SHALL PROVIDE TECHNICAL ASSISTANCE FOR OPERATING UNMANNED AERIAL VEHICLES & SYSTEMS ON NAVAJO NATION IN ACCORDANCE WITH THE PROVISIONS OF THE EPA POLICY ON UAV/UAS UNDER THE RAES2 CONTRACT #68HE0923D0002 FOR EPA FOR REGIONS 6 &
contract · Last action 2025-10-23
$205,630
Environmental Protection Agency
THE PURPOSE OF THIS TASK ORDER IS TO PROVIDE TECHNICAL SUPPORT FOR NAVAJO CONTAMINATED STRUCTURES PROGRAM REMOVAL. THIS WILL BE TASK ORDER #00023 (68HE0919F0104)UNDER CONTRACT #EPS91703 (RAES).
contract · Last action 2023-11-28
$202,474

Federal contract dollars to this establishment. Primary NAICS: 541620 - ENVIRONMENTAL CONSULTING SERVICES. Last action: 2026-04-17. Source: USAspending.gov, net obligations. Recipient address is the SAM registration / HQ address, not necessarily the worksite.

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