Imerys Perlite USA, Inc. operator
Controlled by
Imerys S A
MSHA operator ID: L14728
- Fatalities
- 0
- Total incidents
- 49
- Mines on record
- 3
- Years on record
- 1995–2026
Compliance record
MSHA citations since 2000
411
citations
91
significant & substantial
$123,263
proposed penalties
$122,180
paid to date
99% of proposed penalties paid to date, a $1,083 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
202
inspections on record
3,314
inspection hours
12.4
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.411 citations across 3,314 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.$123K
proposed penalties
$123K
current assessed
$122K
paid to date
$1K
outstanding
395 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2026-05-18.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 15 non-fatal
- SLIP OR FALL OF PERSON 11 non-fatal
- HANDTOOLS (NONPOWERED) 8 non-fatal
- MACHINERY 6 non-fatal
- OTHER 4 non-fatal
- NONPOWERED HAULAGE 1 non-fatal
Incident timeline
2026
1
2025
2
2024
1
2023
1
2020
4
2019
2
2018
1
2017
1
2013
2
2012
1
2011
2
2010
2
2006
1
2005
1
2004
6
2003
2
2001
1
2000
3
1999
2
1998
6
1997
4
1996
1
1995
2
Mines on record
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For insurers, brokers, and safety consultants
The full compliance file on Imerys Perlite USA, Inc.
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.