Employer profile · to
TETRA TECH INC
Federal OSHA safety record across 24 records in 9 states.
These records may not all be the same company. The 24 records filed under this name come from 9 states (CA, CO, FL, LA, MI, MS, OR, TX, VA) and unrelated industries (Construction, Professional, Scientific, Technical Services). Because records are grouped by normalized name and not by legal entity, this profile probably combines more than one unrelated business, and the totals above should not be read as any single company's record. Treat each record's own employer name, location, and industry as authoritative.
How these records are matched, and what they cover. Records are grouped by normalized employer name. Nothing in OSHA's published files ties them to a legal entity. Unrelated companies that happen to share a name are combined onto one profile, and there is no EIN, address, or parent-company check to separate them; conversely, one company filing under several spellings can appear as several profiles. Severe-injury data covers establishments under federal OSHA jurisdiction only: about 22 states run their own OSHA-approved state plans, and severe-injury reports from those states are not in OSHA's published federal file. Verify against the linked OSHA source records before drawing any conclusion about a specific company.
At a glance
Federal OSHA records for TETRA TECH INC include 1 Severe Injury Report, 0 Form 300/301 injury filings, and 23 OSHA inspections, spanning 9 states, with severe injury reports dated between and , and inspections on file back to . Aggregated from three OSHA data feeds; per-record detail and source citations are linked below.
Most recent 1 of 1 severe injury reports · Nov 13, 2020 – Nov 13, 2020.
Most recent 23 of 23 inspections · Mar 31, 1997 – Mar 27, 2025.
Most recent 17 citations across this employer's inspections. Each links to its parent inspection.
FMCSA motor-carrier safety record
U.S. FMCSA roadside-inspection history for 1 motor carrier matching this employer's name and states, most-inspected first, matched by normalized name plus state. Verify identity on the linked FMCSA record before drawing conclusions. An FMCSA alert is FMCSA's own published flag, not our judgment.
Source: FMCSA Safety Measurement System (SMS), refreshed monthly. Out-of-service rates are the share of roadside inspections that placed a driver or vehicle out of service. Crash counts are state-reported crashes inside FMCSA's current SMS scoring window (roughly the last two years, involvement not fault), not career history.
The complete federal record
OSHA is one federal index of many. Standard Record compiles this employer's file across federal agencies (labor, environmental, and transportation enforcement) into a single company record.
See TETRA TECH INC's Standard Record on standardrecord.com →
Company facts
- Name as filed with OSHA
- TETRA TECH INC
- Also appears in filings as
- TETRA TECH, INC. · TETRA TECH, INC · Tetra Tech Inc · TETRA TECH INC. · TETRA-TECH INC
- States with records
- CA, CO, FL, LA, MI, MS, OR, TX, VA
Addresses on OSHA filings
- 2 records
- MILITARY ST, PORT HURON, MI 48060
- 1 record
- 1136 OAK VALLEY DRIVE, ANN ARBOR, MI 48108
- 1 record
- 12000 GREENVILLE AVE, DALLAS, TX 75243
- 1 record
- 123 BRIGHTON LAKE RD STE 203, BRIGHTON, MI 48116
- 1 record
- 1238 MICHIGAN ST, PORT HURON, MI 48060
- 1 record
- 16177 ROCK CREEK RD., REDDING, CA 96001
- 1 record
- 17885 VON KARMAN AVE., SUITE 500, IRVINE, CA 92614
- 1 record
- 20400 S MAIN ST, CARSON, CA 90745
- 1 record
- 2450 LAKE AVE., ALTADENA, CA 91001
- 1 record
- 3000 S 7TH STREET, OROVILLE, CA 95965
Locations on record
Industries (NAICS codes on file)
Other name variants in this index
Records are matched by normalized company name. 18 spellings share this employer's core name and together hold 67 records; this profile covers 24. Some are the same company under a different legal or plant-level name, others are unrelated firms that happen to share a name; OSHA's published records carry no EIN to tell them apart, so we list them for you to judge.
- TETRA TECH
- 10 records: 10 inspections
- TETRA TECH CONSTRUCTION SERVIC
- 9 records: 9 inspections
- TETRA TECH CONSTRUCTION SERVICES, INC.
- 4 records: 4 inspections
- TETRA TECH TESORO INC
- 4 records: 4 inspections
- TETRA TECH CR INC.
- 3 records: 3 inspections
- TETRA TECH CRI
- 2 records: 2 inspections
- TETRA TECH CMI
- 1 record: 1 inspection
- TETRA TECH CONSTRUCTION
- 1 record: 1 inspection
- TETRA TECH CONSTRUCTION, INC.
- 1 record: 1 inspection
- TETRA TECH, E.C. INC.
- 1 record: 1 inspection
- TETRA TECH EC, INC.
- 1 record: 1 inspection
- TETRA TECH EM, INC.
- 1 record: 1 inspection
- +5 more variants
- 5 records not listed here
Explore the full OSHA index
This is one employer's record. Look up OSHA accident reports by company across every employer in the index, or browse severe injury reports by year, state, and company.
Sources
This profile aggregates federal OSHA records from three published feeds: OSHA Severe Injury Reports, the ITA Establishment-Specific Injury and Illness Data (Form 300/301), and the U.S. Department of Labor Open Data API (OSHA inspections). Records are matched to this employer by normalized name only. That has two consequences worth stating plainly. Small variations in spelling, punctuation, and capitalization collapse to one profile, but so do unrelated companies that happen to share a name, because the published records carry no EIN, parent-company, or address key we can use to tell them apart. And a single company filing under materially different legal names (parent vs. subsidiary, or a distinct hyphenated spelling) will appear here as more than one profile, each showing only part of its record. Coverage is federal only: severe-injury data covers establishments under federal OSHA jurisdiction, and about 22 states run their own OSHA-approved state plans whose severe-injury reports are not in OSHA's published federal file. Verify every record against the OSHA source linked from its detail page.