Dale Tiefenthaler et al controller
MSHA controller ID: M09891
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Email me when a new MSHA incident is filed at any mine Dale Tiefenthaler et al controls.
- Fatalities
- 0
- Total incidents
- 2
- Mines on record
- 1
- Years on record
- 1993–1994
Compliance record
MSHA citations since 2000
148
citations
26
significant & substantial
$20,955
proposed penalties
$20,638
paid to date
98% of proposed penalties paid to date, a $317 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
117
inspections on record
726
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: 726 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.$21K
proposed penalties
$21K
current assessed
$21K
paid to date
$0
outstanding
146 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2025-10-14.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 1 non-fatal
- POWERED HAULAGE 1 non-fatal
Incident timeline
1994
1
1993
1
Operators under this controller
Mines on record
For insurers, brokers, and safety consultants
The full compliance file on Dale Tiefenthaler et al
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.