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Truck Graph
0/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
Delta Rock & Sand
DOT 2728504 · Brentwood, CA
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

Delta Rock & Sand (DOT 2728504) is a California-based intrastate carrier headquartered in Brentwood, CA. As of June 7, 2026 at 6:28 PM, operating authority is active but without for-hire authority. TruckGraph has detected 1 risk signal on this carrier, including: no active insurance filing 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
Thomas A Hefner
Operating as: Delta Rock & Sand
DOT Number2728504
MC Number—
Street8261 LONE TREE WY
City / StateBrentwood, CA 94513
Phone9255167821
Operation typeIntrastate
HazmatNot authorized
Authority age10 yr 11 mo
MCS-150 filed—
Company officerThomas A Hefner
Power units1
Total drivers1
Authority Status
Common (for-hire)—
Contract (for-hire)—
Broker—
TruckGraph Intelligence
Risk Signals
●No active insurance filing on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
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Power Units
1
Fleet
Drivers
1
Total
Inspections
0
On record
Crashes
0
On record
OOS Rate
—
↓ Avg 22.26%
Authority Age
10 yr 11 mo
Since 2015
Inspection History
0 total · No inspections

No inspection records on file.

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
8261 LONE TREE WY, Brentwood, CA, 94513 · Open in Maps →
8261 LONE TREE WY, BRENTWOOD, CA, 94513Open in Maps →
Authority Timeline
Authority GrantedJun 2015
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 Thomas A Hefner authorized to operate?

Thomas A Hefner'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 Thomas A Hefner's safety record?

Thomas A Hefner does not have a substantial inspection history on record. This may indicate limited interstate operations.

How many trucks does Thomas A Hefner operate?

Thomas A Hefner operates 1 power units with approximately 1 drivers.

Is Thomas A Hefner insured?

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

Has Thomas A Hefner had any risk indicators?

Thomas A Hefner has a risk score of 0/100 (Monitor) with 1 active risk signal. Review the risk section above and verify independently before tendering.

What is the DOT number for Thomas A Hefner?

Thomas A Hefner's DOT number is 2728504. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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

APA
Truck Graph. (2026). Delta Rock & Sand Safety Record, DOT 2728504. Retrieved from https://truckgraph.com/carriers/2728504
MLA
"Delta Rock & Sand Safety Record, DOT 2728504." Truck Graph, Jun 7, 2026, https://truckgraph.com/carriers/2728504
Chicago
"Delta Rock & Sand Safety Record, DOT 2728504." Truck Graph. Last modified June 7, 2026. https://truckgraph.com/carriers/2728504