Carrier profile · USDOT 3394179 · Updated Jul 26, 2026

Shamrock Sand and Rock LLC

3 power unitsavg 7 yrLocal · 1 statesESCONDIDO, CA50/100
AUTHORITY STATUS UNKNOWNHAZMAT
Verified linksvmcmail.comFMCSA SAFER

Network & Fraud

Reincarnation chains, shared-VIN links, common domains and officers, and owner-group affiliations — the chameleon / double-broker signals that name-and-USDOT lookups miss.

Shares a registration email domain with other carriers

@vmcmail.com — 32 carriers: USDOT 161517USDOT 226100USDOT 321337USDOT 333724USDOT 337863USDOT 390640USDOT 396430USDOT 399145

Shares a company officer with other carriers

james polomsky — 3 carriers: USDOT 434988USDOT 1024955

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)3
Observed (24 mo)1

Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.

Owner / group view· confidence: email domain + officer

Owner / group view

Affiliated authorities

Collapses 32 related authorities · joined by email domain + officer

Authorities
32
Combined power
3,959
States
11
Oldest authority
Jun 1, 1974
Active now
22

Affiliated entities· hover to preview

SUPERIOR READY MIX CONCRETE LPSTATEWIDE TRANSPORT LLCINGRAM CONCRETE LLCREDI-MIX CONCRETE LLCVIRGINIA CONCRETE COMPANY LLCSOUTHEAST DIVISION LOGISTICS LLCARUNDEL COMPANY LLCMOUNTAIN WEST LOGISTICS LLC