GREY MOUNTAIN CONCRETE INC
GARDENA, CA
07/10/2017
3
Power Units
8
Drivers
Current
as of today
Active · 3 power units · 8 drivers · Gardena, CA
2026
~Mar 2026
Email changed
rlee@grey-mountain.com → r.lee@grey-mountain.com
~Mar 2026
Officer change
MICHAEL D MURPHY → MICHAEL MURPHY
Feb 24, 2026
MCS-150 biennial update filed
Reported mileage: 39,750 (2025)
Reported power units: 3
Reported drivers: 5 → 8
2024
Jul 3, 2024
MCS-150 biennial update filed
Reported mileage: 34,500 (2023)
Reported power units: 6 → 3
Reported drivers: 3 → 5
2023
Mar 31, 2023
MCS-150 biennial update filed
Reported mileage: 37,250 (2022)
Reported power units: 6
Reported drivers: 3
2021
Nov 4, 2021
MCS-150 biennial update filed
Reported mileage: 35,000 (2020)
Reported power units: 3 → 6
Reported drivers: 2 → 3
2019
Nov 5, 2019
MCS-150 biennial update filed
Reported mileage: 66,000 (2018)
Reported power units: 3
Reported drivers: 2
2017
Jul 10, 2017
DOT registered
Company registered with the FMCSA.