Carrier profile · USDOT 2367838 · MC-436414 · Updated Jun 13, 2026
Cornerstone Environmental Contractors Inc
1 power unitLocal · 1 statesCONCORD, CA50/100
AUTHORITY STATUS UNKNOWNMC-436414 STATUS UNKNOWNHAZMAT
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
- 4050 PIKE LANE SUITE B, CONCORD, CA, 94520
- Mailing address
- PO BOX 5127, CONCORD, CA, 94524
- Operation
- Intrastate (Hazmat)· Hazmat
Contact
- Phone
- (925) 299-9225
- Cell
- (925) 234-0560
- Fax
- (925) 755-8099
- Web domain
- cornerstoneenv.com
Registration
- Officers
- Randy Fowler · Randy Fowler
- USDOT / docket
- 2367838 · MC-436414
- First registered
- Jan 4, 2013
- Last MCS-150
- Jul 25, 2025 · 12,849 mi (2024)
- FMCSA safety rating
- Not rated
- Recordable crash rate
- 0.00
- D-U-N-S
- 942861725
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.