Carrier profile · USDOT 616131 · Updated Jun 13, 2026
TETRA TECH INC
6 power unitsRegional · 7 statesPASADENA, CA80/100
AUTHORITY STATUS UNKNOWN
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 3475 E FOOTHILL BLVD, PASADENA, CA, 91107
- Operation
- Interstate
Contact
- Phone
- (801) 330-7967
- Fax
- (626) 351-5391
- Web domain
- tetratech.com
Registration
- Officers
- Richard A Lemmon · Glen Alley
- USDOT / docket
- 616131
- First registered
- Oct 4, 1995
- Last MCS-150
- Jan 12, 2026 · 130 mi (2026)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 45224250
Fleet (self-reported · MCS-150)
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.