DBA: Wcbs
Water Components & Building Supply Inc is an active intrastate non-hazmat carrier based in San Rafael, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 2 | 0 |
| Total Power Units | 5 | ||
Distinct vehicles · 24 mo
vs 5 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 | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 57% | 84% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 2 | — | 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 | 5 | 3 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 8, 2026 | CA | STRAIGHT TRUCK | 1 | 0 |
| Jan 8, 2026 | CA | STRAIGHT TRUCK | 1 | 1 |
| Dec 18, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Dec 8, 2025 | CA | TRUCK TRACTOR | 0 | 0 |
Carriers that share an officer, phone, or email with this DOT.
Shared officer · 1
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 5 | 2.13 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 1 state. Top state CA accounts for 100% of activity. Activity outside home state (CA): 0%.
| Dec 5, 2025 |
| CA |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Oct 1, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Sep 3, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Aug 12, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| May 15, 2025 | CA | STRAIGHT TRUCK | 0 | 0 |
| Apr 11, 2025 | CA | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 8, 2026 | 393100CC | Cargo - Cargo not secured against shifting | Vehicle Maintenance | — |
| Jan 8, 2026 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | Yes |
| Jan 13, 2025 | 3939AHLLH | Lighting - Headlamp(s) fail to operate on low and high beam | Vehicle Maintenance | — |
| Jan 7, 2025 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Jan 7, 2025 | 3939ALHLI | Lighting - Headlamp(s) - Any inoperative | Vehicle Maintenance | — |