Duff Quarry Inc operator
Controlled by
James D Duff; James S Duff
MSHA operator ID: L03215
- Fatalities
- 0
- Total incidents
- 6
- Mines on record
- 1
- Years on record
- 1990–2025
Compliance record
MSHA citations since 2000
127
citations
25
significant & substantial
$25,893
proposed penalties
$23,554
paid to date
91% of proposed penalties paid to date, a $2,339 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
87
inspections on record
1,363
inspection hours
9.3
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.127 citations across 1,363 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$26K
proposed penalties
$24K
current assessed
$24K
paid to date
$0
outstanding
126 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2025-07-29.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDTOOLS (NONPOWERED) 2 non-fatal
- FIRE 1 non-fatal
- HANDLING OF MATERIALS 1 non-fatal
- OTHER 1 non-fatal
- POWERED HAULAGE 1 non-fatal
Incident timeline
2025
2
2021
1
2017
1
2016
1
1990
1
Mines on record
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The full compliance file on Duff Quarry Inc
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.