Diamond Environmental Services LP
San Marcos, California · Carrier number 1811463
319
power units
319
power units
Diamond Environmental Services LP is a freight carrier based in San Marcos, California with 319 power units and 223 drivers as reported, the 1,710th largest trucking fleet in the US and the 115th largest in California. In the 24 months to Sep 30, 2026 it had 2 reportable crashes, 1 of them fatal (0.63 per 100 power units vs 2.98 for all carriers).
Updated Oct 11, 2026 · crashes and inspections to Sep 30, 2026
Power units
319
#115 in CA
Drivers
223
55 with commercial license
Crashes, 24 mo
2
1 fatal
Per 100 trucks
0.63
All carriers: 2.98
Vehicles out of service
20.9%
All inspections: 22.8%
Inspections, 24 mo
55
42% with no violation
Compared with other carriers
Crash rate over 24 months per 100 power units, and the share of roadside inspections that took the vehicle or driver off the road
| Crashes / 100 trucks | Vehicles OOS | Drivers OOS | |
|---|---|---|---|
| Diamond Environmental Services LP | 0.63 | 20.9% | 7.3% |
| Carriers with 10+ trucks in CA | 2.30 | 14.2% | 4.0% |
| Carriers with 10+ trucks, US | 2.98 | 19.3% | 3.6% |
| All roadside inspections | - | 22.8% | 6.4% |
Lower is better. Carriers that drive more miles per truck can have more crashes per truck.
Crashes, 24 months
1 people killed and 0 injured
- Fatal1
- Injury0
- Tow-away1
Roadside inspections, 24 months
Inspections and how many ended out of service
| Kind | Inspections | Out of service | Rate |
|---|---|---|---|
| Driver | 55 | 4 | 7.3% |
| Vehicle | 43 | 9 | 20.9% |
Carrier facts
- Carrier number
- 1811463
- Based in
- San Marcos, California
- Registered
- Sep 15, 2008
- Operation
- In one state
- Carries
- Freight
- Authority for hire
- None
- Safety rating
- Not rated
- Miles driven
- 4.79 million (2025)
- Type
- Private property
- Cargo
- Drive tow, Garbage refuse, Motor vehicles, Other
- Last update filed
- Mar 31, 2026
Questions and answers
How many trucks does Diamond Environmental Services LP have?
Diamond Environmental Services LP reports 319 power units (trucks, tractors and buses) and 223 drivers, 55 of them with a commercial license. That is the 1,710th largest fleet among US trucking carriers. Its trucks drove 4.79 million miles in 2025.
Is Diamond Environmental Services LP a safe carrier?
In 24 months Diamond Environmental Services LP had 2 reportable crashes, 0.63 per 100 power units (below the 2.98 of all carriers with 10+ trucks). 20.9% of its vehicle inspections took the truck off the road (all inspections: 22.8%). It has no official safety rating. A crash record does not say who caused the crash.
Reportable crashes of trucks and buses: a death, an injury or a vehicle towed away. A crash record does not say who caused the crash. Recent months can still grow as late reports arrive. Out-of-service rate: the percent of roadside inspections that took the driver or the vehicle off the road until a serious problem was fixed. Carriers with few inspections have rates that swing a lot. Fleet, drivers and miles as the carrier reported them. Official public data, updated daily.