Mountain States Water Service Inc is an active interstate carrier based in Big Piney, WY.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 6 | 0 | 0 |
| Tractors | 9 | 0 | 0 |
| Trailers | 20 | 0 | 0 |
| Total Power Units | 17 | ||
Distinct vehicles · 24 mo
vs 17 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 | 87% | 97% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 43% | 85% | 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 | 0 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Driver Fitness | 2 | 1 | 1 |
| Vehicle Maintenance | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 26, 2026 | WY | TRUCK TRACTOR | 0 | 0 |
| Jul 11, 2025 | WY | TRUCK TRACTOR | 1 | 0 |
| Jul 9, 2025 | WY | STRAIGHT TRUCK | 0 | 0 |
| Jun 19, 2025 | WY | TRUCK TRACTOR | 1 | 0 |
| Jun 5, 2025 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 2.00 | — |
| Driver Fitness | 1 | 1.57 | — |
| Controlled Substances | 0 | 0.00 | — |
Where they run
Inspected in 1 state. Top state WY accounts for 100% of activity. Activity outside home state (WY): 0%.
| 0 |
| WY |
| TRUCK TRACTOR |
| 2 |
| 1 |
| Mar 5, 2025 | WY | STRAIGHT TRUCK | 0 | 0 |
| Mar 5, 2025 | WY | STRAIGHT TRUCK | 0 | 0 |
| Nov 12, 2024 | WY | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jul 11, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Jun 19, 2025 | 3939ALRLI | Lighting - Tail lamp - Any inoperative | Vehicle Maintenance | — |
| Jun 5, 2025 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| Jun 5, 2025 | 39141AMCPC | Medical (Certificate) - Operating a commercial vehicle without showing proof of a valid medical certification upon request when medical certification is required. | Driver Fitness | — |