DBA: William E Koval Jr Trucking
William E Koval Jr is an active interstate carrier based in Tomah, WI.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 8 | 0 | 0 |
| Tractors | 8 | 0 | 0 |
| Trailers | 8 | 0 | 0 |
| Total Power Units | 8 | ||
Distinct vehicles · 24 mo
vs 8 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 | 98% | 98% | Worse than most peers |
| HOS Compliance | 95% | 97% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 70% | 88% | 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 | 3 | — | 6.67% |
| Vehicle | 0 | 4 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2025 | 0 | 2 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 15 | 5 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Sep 13, 2026 | IA | TRUCK TRACTOR | 1 | 0 |
| Aug 5, 2026 | WI | TRUCK TRACTOR | 2 | 0 |
| Jul 28, 2026 | MT | TRUCK TRACTOR | 2 | 0 |
| Jul 14, 2026 | WA | TRUCK TRACTOR | 3 | 1 |
Carriers that share an officer, phone, or email with this DOT.
Shared email · 1
Shared phone · 1
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 4 | 6.50 | — |
| HOS Compliance | 6 | 1.60 | — |
| Vehicle Maintenance | 8 | 6.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 11 states. Top state MT accounts for 25% of activity. Activity outside home state (WI): 84%.
+6 other states with fewer inspections
| 4 |
| Hours-of-Service Compliance | 9 | 3 | 3 |
| Unsafe Driving | 4 | 3 | 0 |
| Jun 1, 2026 | MO | TRUCK TRACTOR | 0 | 0 |
| May 19, 2026 | CO | TRUCK TRACTOR | 0 | 0 |
| May 13, 2026 | SD | TRUCK TRACTOR | 0 | 0 |
| Apr 25, 2026 | TX | TRUCK TRACTOR | 2 | 1 |
| Apr 21, 2026 | MO | TRUCK TRACTOR | 5 | 4 |
| Apr 19, 2026 | WY | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Sep 13, 2026 | 39395A4EEUS | Emergency Equipment - Fire Extinguishers - unsecured | Vehicle Maintenance | — |
| Aug 5, 2026 | 3922SLLS3 | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | Unsafe Driving | — |
| Aug 5, 2026 | 3958A | HOS (Form) - Paper Log/Logging Programs Form and Manner | Hours-of-Service Compliance | — |
| Jul 28, 2026 | 39617CPI | Operating a CMV without documentation of a periodic inspection | Vehicle Maintenance | — |
| Jul 28, 2026 | 3939ALRLI | Lighting - Tail lamp - Any inoperative | Vehicle Maintenance | — |
| Jul 14, 2026 | 3939ALSLI | Lighting - Stop lamps - Any inoperative. | Vehicle Maintenance | — |
| Jul 14, 2026 | 3939ALTSI | Lighting - Turn signal - Any inoperative on the rearmost vehicle. | Vehicle Maintenance | Yes |
| Jul 14, 2026 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Apr 25, 2026 | 39355E | No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | Vehicle Maintenance | — |
| Apr 25, 2026 | 39375A | Flat tire or fabric exposed | Vehicle Maintenance | Yes |