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GRINDING ROCK AGGREGATES
Independence, CA
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating, crash records and out-of-service rates checked
FMCSA status: Active registration · no operating authority · DOT 3907306
Active
No Safety Rating
Broker Vetting Summary
Key signals from current FMCSA records
Authority
No Active Authority
Common carrier
Insurance
Not Found
No coverage amount on file
Safety
Not Rated
6 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Active FMCSA registration, but no active for-hire operating authority on record
- Registered with FMCSA as a private carrier — not registered to haul other companies' freight for hire
- No active insurance filing found on record
- 6 FMCSA inspections on record
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
3907306
Safety Rating
Not Rated
Operation Classification
Private (property)
MCS-150 Filed
December 2, 2024
FMCSA Registration
June 24, 2022
Annual Mileage
55,000 mi (2023)
Contact Information
Address
131 N Hwy 395, Independence, CA 93526
Phone
Email
Website
Owner / Officer
Alisa Amy Lee
Officer 2
Carl Dahlberg
Cargo Types
Building MaterialsConstruction Materials
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
6
Driver Inspections
3
Vehicle Inspections
6
Out-of-Service Violations
3
Violations by Category
Vehicle Maintenance11
Unsafe Driving0
Hours of Service0
OOS Rates vs. National Average
Inspection Trend by Year
2026
2024
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Vehicle Maintenance
2 of 2 inspections
Unsafe Driving
0 of 2 inspections
Hours of Service
0 of 2 inspections
Driver Fitness
0 of 2 inspections
Controlled Substances
0 of 2 inspections
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
CA4
Fleet & Equipment (2)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~2
of 4 reported to FMCSA
Trailers
—
seen at inspection
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2018 Peterbilt 567 | Truck · Class 8 | 1NPCX4EX5JD463681 | 2 | — |
| 2018 Peterbilt 567 | Truck · Class 8 | 1NPCX4EX7JD463682 | 2 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (6)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| October 7, 2026 | UGIG000767 | CA, CA | II | 2 | — | GRINDING ROCK | Straight Truck |
FRHT |
3ALHCYFE5LDKV5870 |
CA 91603K3 |
| 393.9A-LHLI | Lighting - Headlamp(s) - Any inoperative | Lighting | ||||||||
| 393.9A-LSLI | Lighting - Stop lamps - Any inoperative. | Lighting | ||||||||
| September 16, 2026 | UGIG000704 | CA, CA | II | 3 | — | GRINDING ROCK AGGREGATES | Straight Truck |
PETERBILT |
1NPCX4EX7JD463682 |
CA 86072J2 |
| 393.45D-B | Air Brake - Audible air leak at a proper connection | Brakes All Others | ||||||||
| 393.9A-LHLI | Lighting - Headlamp(s) - Any inoperative | Lighting | ||||||||
| 393.9A-HLLH | Lighting - Headlamp(s) fail to operate on low and high beam | Lighting | ||||||||
| April 1, 2026 | UGIG000363 | BISHOP SCALES, CA | I | 1 | — | N/A | Straight Truck |
PETERBILT |
1NPCX4EX5JD463681 |
CA 86059J2 |
| 396.3A1-BALAC | Brake - Audible air leak from a brake chamber | Brakes All Others | ||||||||
| April 24, 2024 | UCY8000625 | BISHOP SCALES, CA | I | — | — | NA | Straight Truck |
PETERBILT |
1NPCX4EX7JD463682 |
CA 86072J2 |
| April 24, 2024 | UCY8000624 | BISHOP SCALES, CA | I | 1 | — | NA | Straight Truck |
PETERBILT |
1NPCX4EX5JD463681 |
CA 86059J2 |
| 393.95A | No/discharged/unsecured fire extinguisher | Emergency Equipment | ||||||||
| February 21, 2024 | UCY8000563 | INDEPENDENCE AIRPORT, CA | II | 5 | 3 | NA | Straight Truck |
PETERBILT |
1NPCX4EX7JD463682 |
CA 86072J2 |
| 393.9H | OOSInoperable head lamps | Lighting | ||||||||
| 393.9 | OOSInoperable Required Lamp | Clearance Identification Lamps/Other | ||||||||
| 393.9 | OOSInoperable Required Lamp | Clearance Identification Lamps/Other | ||||||||
| 392.2 | Violation of Local Laws - Explain | |||||||||
| 393.95A | No/discharged/unsecured fire extinguisher | Emergency Equipment | ||||||||
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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 19, 2026.
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