William Leo
Operating legally with a clean record
No problems found in FMCSA authority, insurance, inspection or crash data.
How we scored it · 5 factors
Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.
Safety
FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026No roadside inspections or reportable crashes in the last 24 months, and not rated by FMCSA.
Enforcement
FMCSA closed casesClosed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.
Equipment
Operations & cargo
Identity & federal record
FMCSA census · MCS-150- USDOT
- 3107526
- MC / docket
- MC-80941
- Legal name
- William Leo
- DBA
- L B Septic Service
- Entity type
- Carrier
- Operation
- Intrastate (Non-Hazmat)
- First registered
- Mar 9, 2018
- Last MCS-150
- May 11, 2026
- Safety rating
- Not rated
- Drivers (CDL)
- 2 (2)
- Hazmat
- No
- Business type
- —
Fraud & network signals
For review, not a verdict.
- Crowther Septic Tank Service · USDOT 1326901 · Sanders, AZ
Shared contact details can mean affiliated companies or a registration service, but they are also a common sign of chameleon carriers and identity theft. Confirm you're dealing with the company you expect.
Frequently asked
What is William Leo's USDOT number?
William Leo's USDOT number is 3107526 and its docket number is MC080941.
Is William Leo authorized to operate?
It does not hold MC operating authority, which private and intrastate carriers do not need.
What is William Leo's safety record?
No roadside inspections or reportable crashes in the last 24 months. Not rated by FMCSA.
How big is William Leo's fleet?
1 power unit and 2 drivers per its MCS-150 filed May 11, 2026.
What insurance does William Leo carry?
$750,000 in BIPD liability coverage is on file with United Financial Casualty Company.
Where is William Leo located?
William Leo is located at 16 Park Estates, Sanders, AZ, 86512. Phone: (928) 206-0719.
Similar carriers in Arizona
All Arizona carriers →Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.