Mining Incidents

Dena Christensen: 1 recorded fatality controller

MSHA controller ID: M31795

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Fatalities
1
Total incidents
5
Mines on record
1
Years on record
1996–1997
Compliance record
MSHA citations since 2001
39
citations
23
significant & substantial
$15,003
proposed penalties
$9,501
paid to date
63% of proposed penalties paid to date, a $5,502 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
24
inspections on record
196
inspection hours
n/a
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.
Rate withheld: 196 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
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.
$15K
proposed penalties
$10K
current assessed
$10K
paid to date
$0
outstanding
38 assessments are final orders; 2 contested dockets.
Of $11K in penalties contested before the Commission, $6K was upheld in final decisions.
As of the most recent assessment on 2007-07-10.
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.
60.5%
significant & substantial
2.6%
high negligence or reckless
60.5%
reasonably likely or greater
92.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 97.4% moderate, 2.6% 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: 2009-05-06, 17 years ago
0%
of limit-tested samples over the exposure limit
5
samples
4
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Arsenic fumes1
  • Beryllium fumes1
  • Cadmium oxide fumes1
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.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this controller contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEST20030045M Settlement Manning 2003 $6K → $4K
WEST 2004-117M Settlement Feldman 2004 $5K → $2K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

1997
4
1996
1 (1f)

Operators under this controller

Mines on record

Fatalities under this controller

1 recorded
April 10, 1996 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator Fatality · IGNITION OR EXPLOSION OF GAS OR DUST
Christensen Construction & Gravel Inc · Contact with hot objects or substances

WELDING OF DIESEL FUEL TANK WITH ACETALINE WELDING TIP AND PIECE OF WIRE, WHEN TANK EXPLODED, CAUSING BURNS TO EE OF APPROX 85% OF BODY.

For insurers, brokers, and safety consultants

Where Dena Christensen 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.

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