Since 1997, OSHA inspectors have visited Tetra Tech Inc. in California 9 times.
The most recent inspection opened on Mar 27, 2025 after a complaint, in Altadena and is still open.
In all, OSHA issued 9 citation items: 9 other-than-serious.
The proposed penalties came to $5,115; today they stand at $4,650, 9% less.
Among professional services employers, the typical cited inspection since 2015 ends with a $1,821 penalty. Tetra Tech Inc. averages $1,450 across 3 cited inspections.
1 inspection on this page followed a fatal incident.
Inspection 343968566 OPENED APR 24, 2019Closed
Follow-up · Partial · Safety · 1,000 employees at the site · Closed Aug 2, 2019
3000 S 7th Street, Oroville, CA 95965 · Engineering Services · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
Inspection 343569166 OPENED OCT 30, 2018Closed
Fatality or catastrophe · Partial · Safety · 4 employees at the site · Closed Aug 31, 2020
6583 St Helena Rd, Santa Rosa, CA 95404 · Surveying and Mapping (except Geophysical) Services · OSHA's record · Phone and website on Google Maps
Incident on Oct 29, 2018 (fatal): Employee dies from cardiac arrest during walk up incline
At 11:11 a.m. on October 29, 2018, three employees were in the process of walking Primary Electrical Lines inspecting and surveying hazards to future tree trimming operations. The employees were walking up an incline at a slow pace while surveying the tree line when Employee #1 collapsed. Employee #1 was walking a slow pace up the incline as they surveyed the tree line, wearing a long sleeve shirt, canvas pants, and a high visibility vest, and carried a cell phone and 2 rolls of tape. The coroners report stated that the cause of death Arteriosclerotic Cardiovascular Disease.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|
| Citation 1, item 1 29 CFR 3203(B)(2) |
Other-than-serious | $375 | $375 | Feb 11, 2019 | Final |
| Citation 1, item 2 29 CFR 3395(H)(1) |
Other-than-serious | $560 | $450 | Feb 11, 2019 | Final |
Inspection 341320562 OPENED MAR 11, 2016Closed
Planned · Complete · Safety · 17,000 employees at the site · Closed Mar 29, 2016
17885 Von Karman Ave., Suite 500, Irvine, CA 92614 · Engineering Services · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
Inspection 106354111 OPENED NOV 8, 2006Closed
Planned · Partial · Safety · 1 employee at the site · Closed Nov 8, 2006
Marshillia Ranch Golf Course, Vandenberg Afb, CA 93437 · Site Preparation Contractors · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
Inspection 125884379 OPENED JUL 29, 2003Closed
Accident · Partial · Safety · 14 employees at the site · Closed Jul 12, 2008
Demo Site At Corner Of Tippecanoe & 3rd Street, San Bernardino, CA 92414 · Site Preparation Contractors · OSHA's record · Phone and website on Google Maps
Incident on Jul 3, 2003: Employee injured when leg struck by tree limb being cut
At 10:00 a.m. on July 3, 2003, Employee #1, a tree worker, was cutting tree limb s at a demolition work site located in San Bernardino, California. Employee #1 w as cutting off a branch or limb of a 20-foot-long downed tree with a powered cha in saw near a ditch. Employee #1 completed a cut of a limb at the top of the tre e. The limb got detached and kicked back hitting Employee #1's lower left leg, c ausing serious fracture injuries to his tibia and fibula. Initially, Employee #1 was taken to the Fox Occupational Clinic in San Bernardino, and he was referred to an Orthopedist office for treatment. On July 7, 2003, surgery was performed at the St. Bernadine Medical Center. Employee #1 was hospitalized for two days.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|
| Citation 1, item 1 29 CFR 3203 B01 |
Other-than-serious | $375 | $300 | Dec 18, 2003 | Closed |
Current text from the Code of Federal Regulations. Some citations were issued under older wording.
Source: U.S. Department of Labor, OSHA enforcement data. A citation is OSHA's allegation; employers can contest it, and the status column shows where each item stands. Something wrong on this page? Tell us.