Blue Mountain Minerals operator
Controlled by
Portola Minerals Company
MSHA operator ID: L13595
- Fatalities
- 0
- Total incidents
- 100
- Mines on record
- 1
- Years on record
- 1994–2026
Compliance record
MSHA citations since 2001
350
citations
73
significant & substantial
$162,718
proposed penalties
$123,361
paid to date
76% of proposed penalties paid to date, a $39,357 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
84
inspections on record
2,368
inspection hours
14.8
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.350 citations across 2,368 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.$163K
proposed penalties
$123K
current assessed
$123K
paid to date
$0
outstanding
348 assessments are final orders; 5 contested dockets.
As of the most recent assessment on 2026-02-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 35 non-fatal
- SLIP OR FALL OF PERSON 19 non-fatal
- MACHINERY 17 non-fatal
- HANDTOOLS (NONPOWERED) 14 non-fatal
- DISORDERS (REPEATED TRAUMA) 4 non-fatal
- POWERED HAULAGE 3 non-fatal
Incident timeline
2026
3
2025
2
2024
2
2023
4
2022
4
2021
3
2020
3
2019
3
2018
3
2014
1
2013
1
2012
3
2011
3
2010
2
2009
1
2008
2
2006
3
2005
6
2004
5
2003
6
2002
5
2001
4
2000
8
1999
6
1998
7
1997
4
1996
4
1995
1
1994
1
Mines on record
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The full compliance file on Blue Mountain Minerals
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.