Portola Minerals Company controller
MSHA controller ID: M10356
Watch this controller
Email me when a new MSHA incident is filed at any mine Portola Minerals Company controls.
- Fatalities
- 0
- Total incidents
- 104
- Mines on record
- 2
- Years on record
- 1994–2026
Compliance record
MSHA citations since 2001
501
citations
124
significant & substantial
$324,161
proposed penalties
$247,772
paid to date
76% of proposed penalties paid to date, a $76,389 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
113
inspections on record
3,223
inspection hours
15.5
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.501 citations across 3,223 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.$324K
proposed penalties
$248K
current assessed
$248K
paid to date
$0
outstanding
498 assessments are final orders; 7 contested dockets.
As of the most recent assessment on 2026-04-28.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 36 non-fatal
- SLIP OR FALL OF PERSON 20 non-fatal
- MACHINERY 17 non-fatal
- HANDTOOLS (NONPOWERED) 15 non-fatal
- DISORDERS (REPEATED TRAUMA) 4 non-fatal
- POWERED HAULAGE 4 non-fatal
Incident timeline
2026
4
2025
2
2024
3
2023
4
2022
4
2021
5
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
Operators under this controller
Mines on record
For insurers, brokers, and safety consultants
The full compliance file on Portola Minerals Company
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.