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Truck Graph
40/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
Stamback Septic Service
DOT 2532126 · Willcox, AZ
Report generated: June 7, 2026 at 6:28 PM
✗Authorized for hire?
✗Active insurance?
✗Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

Stamback Septic Service (DOT 2532126) is a Arizona-based intrastate carrier headquartered in Willcox, AZ. As of June 7, 2026 at 6:28 PM, operating authority is active but without for-hire authority. TruckGraph has detected 3 risk signals on this carrier, including: elevated vehicle out-of-service rate; unsafe driving violation on record. TruckGraph rates this carrier "Do Not Tender" based on FMCSA compliance data, inspection history, insurance status, and network connection analysis. Last synced: June 7, 2026 at 6:28 PM.

FMCSA Public Record
Wac LLC
Operating as: Stamback Septic Service
DOT Number2532126
MC Number—
Street1111 E MALEY STREET
City / StateWillcox, AZ 85643
Phone5203844803
Operation typeIntrastate
HazmatNot authorized
Authority age11 yr 10 mo
MCS-150 filed11/06/2024
Company officerAndrew Schmuker
Power units32
Total drivers32
Authority Status
Common (for-hire)—
Contract (for-hire)—
Broker—
TruckGraph Intelligence
Risk Signals
●Elevated vehicle out-of-service rate
●Unsafe driving violation on record
●No active insurance filing on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
OOS rate 33.3% vs. national avg 22.26% — above average
Network Intelligence Map
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Power Units
32
Fleet
Drivers
32
Total
Inspections
12
On record
Crashes
0
On record
OOS Rate
33.3%
↑ Avg 22.26%
Authority Age
11 yr 10 mo
Since 2014
Violation Categories — Last 24 Months
Hours of Service
12 insp (100%)
Unsafe Driving
12 insp (100%)· 1 viol
Driver Fitness
12 insp (100%)
Controlled Substances
12 insp (100%)
Vehicle Maintenance
10 insp (83%)· 10 viol
Inspection History
12 total · OOS rate 33.3%
DateStateLevelDriver OOSVehicle OOSResult
1/31/2025AZIII00Pass
8/29/2025AZII00Pass
6/26/2024AZII01OOS
12/26/2024AZIII00Pass
11/19/2024AZII01OOS
8/19/2024AZII01OOS
9/18/2024AZII01OOS
7/18/2024AZII00Pass
7/17/2024AZII00Pass
10/14/2025AZII00Pass
Crash History
0 total on record

No crash records on file.

Insurance Status
⚠ No active insurance filing on record
Verify insurance directly with carrier before tendering any load.
Location
1111 E MALEY STREET, Willcox, AZ, 85643 · Open in Maps →
1111 E MALEY STREET, WILLCOX, AZ, 85643Open in Maps →
Authority Timeline
Authority GrantedAug 2014
FMCSA issued operating authority
Active USDOT — No for-hire authorityCurrent
USDOT record is active but no for-hire operating authority is currently granted

Source: FMCSA compliance records, inspection data, crash records, insurance filings, and TruckGraph analysis. View methodology

Important Legal Notice

Data sourced from FMCSA public records and TruckGraph independent analysis. This is not legal advice, not a guarantee of carrier safety, and not a compliance certification. Verify through official FMCSA sources before tendering. Last synced: .

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Frequently Asked Questions

Is Wac LLC authorized to operate?

Wac LLC's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is Wac LLC's safety record?

Wac LLC has 12 roadside inspections on record with an out-of-service rate of 33.3%. Crash history shows 0 incidents. Review the full safety profile above before making a freight decision.

How many trucks does Wac LLC operate?

Wac LLC operates 32 power units with approximately 32 drivers.

Is Wac LLC insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has Wac LLC had any risk indicators?

Wac LLC has a risk score of 40/100 (Caution) with 3 active risk signals. Review the risk section above and verify independently before tendering.

What is the DOT number for Wac LLC?

Wac LLC's DOT number is 2532126. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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For journalists and researchers

Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Stamback Septic Service Safety Record, DOT 2532126. Retrieved from https://truckgraph.com/carriers/2532126
MLA
"Stamback Septic Service Safety Record, DOT 2532126." Truck Graph, Jun 7, 2026, https://truckgraph.com/carriers/2532126
Chicago
"Stamback Septic Service Safety Record, DOT 2532126." Truck Graph. Last modified June 7, 2026. https://truckgraph.com/carriers/2532126