WESTERN WATER WORKS SUPPLY COMPANY
USDOT 138898
Active, interstate carrier, mid-size fleet (23 power units) — no FMCSA safety rating on record (common).
Vetting summary
At a glance
- Out-of-service rate24% vs 19.1% national avg
- Crashes (24 months)1 reported — involvement does not imply fault
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 138898 |
|---|---|
| MC Number | — |
| Legal Name | WESTERN WATER WORKS SUPPLY COMPANY |
| DBA Name | — |
| Entity Type | CORPORATION |
| Phone | 9095977000 |
| Address | 5831 PINE AVE, Chino Hills, CA, 91709 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Interstate |
| Safety Rating | None on record — most carriers have not received a formal FMCSA safety rating. |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Our scoring
Safety scores
| Unsafe Driving | 0 / 100 |
|---|---|
| Hours-of-Service Compliance | 0 / 100 |
| Driver Fitness | 88 / 100 |
| Controlled Substances & Alcohol | 0 / 100 |
| Vehicle Maintenance | 67 / 100 |
Scores are 0-100 rankings computed by us from public FMCSA inspection measures; higher = worse relative to peers. Not official CSA/BASIC percentiles. How these scores are computed.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 25 |
|---|---|
| Out-of-Service Rate | 24% vs 19.1% national average |
| Crashes | 1 total (0 fatal, 0 with injuries, 1 towaway) |
- 2026-05-07 — CA — towaway
Most frequent violation categories: 51 (5), 14 (4), 25 (4).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Equipment
Fleet & operations
| Power Units (trucks) | 23 |
|---|---|
| Drivers | 22 |
| Recent Annual Mileage | 800,000 |
| Last MCS-150 Filing | 26-NOV-25 |
WESTERN WATER WORKS SUPPLY COMPANY operates 23 power units — a larger fleet than 98% of carriers registered in CA.
Nearby
Other carriers in Chino Hills, CA
- AEROJET-GENERAL CORPORATION — USDOT 260070, 5 power units
- DOUGLAS RILEY — USDOT 512457, 2 power units
- ROBERT J KOCH — USDOT 446031, 1 power units
- LAURA LLOYD — USDOT 471531, 1 power units
- RUSSELL THOMPSON STABLES — USDOT 473274, 1 power units
Browse all carriers in Chino Hills, CA or all CA carriers.