Mining Incidents

Opperman Inc: 155 MSHA citations operator

Controlled by Harlan Opperman
MSHA operator ID: L08599

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Fatalities
0
Total incidents
2
Mines on record
1
Years on record
2009–2013
Compliance record
MSHA citations since 2003
155
citations
40
significant & substantial
$25,005
proposed penalties
$25,005
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2003
138
inspections on record
1,544
inspection hours
10.0
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.
155 citations across 1,544 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.
$25K
proposed penalties
$25K
current assessed
$25K
paid to date
$0
outstanding
153 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
26.0%
significant & substantial
5.2%
high negligence or reckless
26.0%
reasonably likely or greater
59.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.8% low, 89.0% moderate, 5.2% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2025-05-07
20%
of limit-tested samples over the exposure limit
30
samples
5
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz51 over
  • Respirable dust, <.1mg22
  • Unlisted Particulate, respirable, <1% Qtz3
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.

Top causes

Incident timeline

2013
1
2009
1

Mines on record

For insurers, brokers, and safety consultants

Where Opperman Inc stands on silica, penalties, and injury rate

MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.

The federal record itself stays free on this site. What costs money, and why.

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