CSA
UnknownUSDOT 3394179· CARRIER· EIN 33-0980887
⬇ PDF report

SHAMROCK SAND AND ROCK LLC

1508 MISSION RD, ESCONDIDO, CA, 92029-1105(760) 745-0556dittmerm@vmcmail.comJAMES POLOMSKY
Vetting snapshot
Authority
Unknown
per SAFER
Insurance
No active filing
not required
Vehicle OOS
no inspections
Driver OOS
no inspections
Crashes 24mo
0
clean
Red flags
None
nothing flagged
100
/ 100

Risk factors

Low riskVioCodes score
No red flags in the public FMCSA record

A weighted read of the public FMCSA signals below — authority, insurance, out-of-service, crashes, roadside OOS rates, and carrier connections. A starting point for vetting, not a guarantee.

Roadside inspection performance

Out-of-service rate vs national average. Lower is better.

Vehicle0 inspections · 0% OOS · National 22%
Driver0 inspections · 0% OOS · National 6.7%

CSA performance breakdown

FMCSA · August 28, 2026

1 inspections · 2 violations (0 OOS) · 0% of inspections had an OOS finding.

1
Inspections
2
Violations
0
OOS violations
2
Distinct codes

Violations by BASIC

click to filter codes

2
total

Most inspected in · top 1 states

  • CA1

Latest FMCSA SMS snapshot. Codes link to the lookup — severity weighting, contest angles, and the DataQs Drafter for each. Click a BASIC to filter the codes.

90-day safety improvement plan

What this carrier has struggled with most in the last 90 days — where to focus now.

No roadside inspections in the last 90 days — nothing to work on right now.

Inspection & crash map

live · FMCSA MCMIS

Every inspection and crash on record — hover a point for the summary, click for full detail (codes, severity, CSA points).

1
Inspections
2
Violations
0
Out-of-service
5
CSA points
0
Crashes
1
States
cleanviolOOS

CSA points = violation severity weight × FMCSA time weight (3× in the last 6 months, 2× at 6–12, 1× at 12–24). Points are spread within each state — FMCSA records the inspection state, not an exact location. Source: FMCSA MCMIS.

Equipment

VINs via NHTSA

1 distinct vehicle seen in this carrier’s roadside inspections.

1 incomplete vehicle
2019 KENWORTH T3 Series
2NKHHJ7X7KM244818· 58215L2 CA

Equipment is inferred from VINs recorded on roadside inspections (FMCSA MCMIS), decoded via the NHTSA vPIC API — it reflects vehicles inspected, not a current fleet roster.

Company profile

FMCSA census

PRIVATE PROPERTY

Power units
7
on file (MCS-150)
Drivers
2
2 hold a CDL
Annual mileage
0M mi
reported 2025
Recordable crash rate
per million miles
How far they run · drivers by operating lane
  • Intrastate · <100 mi2 drivers
Company officer
JAMES POLOMSKY
Operation
Intrastate (Non-Hazmat)
Registered since
2020-02-11
Last MCS-150 update
2025-06-20
Census status
Active

Fleet: 3 trucks · 3 owned tractors.

Source: FMCSA Company Census File (data.transportation.gov). Fleet and driver counts are self-reported on the carrier’s most recent MCS-150 filing.

Connections

carrier graph

This carrier shares phone numbers, officers or emails with 4 other carriers — review the connections below as part of your vetting.

4
Connected carriers
0
Fleet-transfer links
0
Most shared VINs
3
Strong links
Strong· 3
1
CALMAT CO
USDOT 1024955Active· VESTAVIA, AL
Strong
Officer
2
NORTH AMERICAN RECYCLING AND CRUSHING LLC
USDOT 3341028Active· BIRMINGHAM, AL
Strong
Officer
3
SUPERIOR READY MIX CONCRETE LP
USDOT 434988Active· ESCONDIDO, CA
Strong
OfficerEmailPhone

Shared VINs come from FMCSA roadside-inspection records — a vehicle inspected under more than one carrier, often a fleet transfer or trailer interchange. Other links come from the FMCSA census. Shared identifiers are common and often legitimate — treat these as leads to investigate, not proof of wrongdoing.

Activity history

2 events
  1. 06/20/2025MCS-150 update filed

    0.0M mi reported (2025)

  2. 02/11/2020Registered with FMCSA

    PRIVATE PROPERTY

Merged from FMCSA authority, insurance, out-of-service, and census records.

🚛

Operations

Classification

  • PRIVATE PROPERTY

Area served

  • Intrastate (Non-Hazmat)

FMCSA safety rating

Rating
Not rated
Type
Rated
Last review
📄

MCS-150 registration

Form date
2025-06-20
Reported mileage
45,000 mi (2025)

Got a violation you want to contest?

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Data sourced from public FMCSA records via safer.fmcsa.dot.gov · Latest FMCSA update: Sep 2026 · Page refreshed: Sep 22, 2026, 2:09 AM. VioCodes is not affiliated with FMCSA. To dispute incorrect data, file a DataQs Request for Data Review.