Carrierintel
EM

EXTREME MATERIALS INC

Carrierintel Safety Score: 74/100. 68 inspection violations in 12 months. Last inspected Oct 2026.

DOT 1905971MC 699110ActiveMotor CarrierInterstateZURICH AMERICAN INSURANCE COMPANYSUMMERVILLE, SC

COMPANY

Authority since
2012-02-03
MCS-150
2025-02-10 · 2,143,000 mi (2025)
Fleet
38 units · 30 trailers · 38 drivers
Annual mileage (VMT)
2,143,000 mi (2025)

ADDRESS

Physical
480 HODGE ROAD
SUMMERVILLE, SC 29483
Mailing
PO BOX 3408
SUMMERVILLE, SC 29484

CONTACT

Phone
8438217600
Email
twharton@knightscompanies.com

OFFICERS

Primary Officer
THAD WHARTON
Title
TRAININGDEVELOPMENT MGR

OPERATION & CARGO

Operation classification
Authorized For Hire
Specialty
Construction & Building Materials
Cargo types
4
General FreightBuilding MaterialsConstructionOther: SAND, ROCK, CEMENT,
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
177 mo
Active authority
INSURANCE
1 active
ZURICH AMERICAN INSURANCE COMPANY
RISK GRADE
Minimal Risk
0 risk factors · 5 strengths
OOS RATE
9.8%
16 / 163 inspections

Carrierintel Safety Score

Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.

74
out of 100
Good
Markers: OOS inspection Crash Fatality

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Declared (MCS-150)
38 power units
Unique power units seen
25
+ 15 trailer VINs
Inspections
53
Discrepancy
0.7x

Minimal Risk

0 risk factors · 5 strengths · 5 data points

SAFETY PERFORMANCE

Crash Record
24 crashes · 0 fatal · 10 with injuries · 22 tow-away
Clean Inspection Rate
90% — 147 clean of 163 inspections
Out-of-Service Rate
9.8% — driver OOS 1 insp., vehicle OOS 15 insp.

COMPLIANCE & AUTHORITY

USDOT Registration
Status: Active
Operating Authority
Active: Motor Carrier
Out-of-service orders
None on record
Authority Events
4 historical event(s) on file
MCS-150 Filing
Last filed 2025-02-10

INSURANCE

Active Coverage
1 policy(ies) on file · total max coverage $1,000,000

SUMMARY

Low OOS rate 8% (last 24 mo)
Low crash rate (3.9 per 100 trucks/yr)
90% clean inspections
Active insurance on file
Coverage $1.0M

INDUSTRY REPORTS

  • ELD Tampering — Carriers cited for ELD tampering under 49 CFR § 395.8(e), by carrier and state.
  • Top Violations — The ten most-cited FMCSA violation codes of the last 30 days.
  • Phantom Fleets — Declared power units against the vehicles seen at roadside inspections.
  • English Proficiency — Carriers whose drivers were cited under 49 CFR § 391.11(b)(2), by carrier and state.
  • Methodology — Where the data comes from and how the Safety Score and Risk Grade are built.

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