Western Water Works Supply Company is an active interstate carrier based in Chino Hills, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 23 | 22 | 0 |
| Tractors | 0 | 1 | 0 |
| Trailers | 0 | 1 | 0 |
| Total Power Units | 23 | ||
Distinct vehicles · 24 mo
vs 23 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 0% | 0% | Better than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 85% | 96% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 59% | 86% | Around peer average |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 1 | — | 6.67% |
| Vehicle | 0 | 4 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 8 | 0 | 5 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 18, 2026 | CA | STRAIGHT TRUCK | 1 | 1 |
| Mar 18, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Feb 12, 2026 | CA | STRAIGHT TRUCK | 0 | 0 |
| Jan 15, 2026 | CA | TRUCK TRACTOR | 2 | 1 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 6 | 2.28 | — |
| Driver Fitness | 1 | 0.26 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 2 states. Top state CA accounts for 91% of activity. Activity outside home state (CA): 9%.
| Driver Fitness |
| 1 |
| 1 |
| 1 |
| Oct 1, 2025 |
| CA |
| STRAIGHT TRUCK |
| 2 |
| 1 |
| Sep 22, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Aug 21, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Aug 12, 2025 | CA | STRAIGHT TRUCK | 1 | 1 |
| Jun 6, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| May 28, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 18, 2026 | 39345DBAAL | Air Brake - Audible air leak at other than a proper connection | Vehicle Maintenance | Yes |
| Jan 15, 2026 | 393110B3C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet | Vehicle Maintenance | Yes |
| Jan 15, 2026 | 3939BLLPL | Lighting - License plate lamp obscured | Vehicle Maintenance | — |
| Oct 1, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Oct 1, 2025 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Aug 12, 2025 | 393110B3C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet | Vehicle Maintenance | Yes |
| Sep 4, 2024 | 38323A2 | Operating a CMV without a CDL | Driver Fitness | Yes |
| Aug 22, 2024 | 39378AWS | Washers - Inoperative washing system. | Vehicle Maintenance | — |
| Apr 15, 2024 | 393110B3C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet | Vehicle Maintenance | Yes |