Imerys Filtration Minerals, Inc.: 1,958 MSHA citations operator
Controlled by
Imerys S A
MSHA operator ID: L12218
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Email me when a new MSHA incident is filed at any Imerys Filtration Minerals, Inc. mine.
- Fatalities
- 0
- Total incidents
- 702
- Mines on record
- 4
- Years on record
- 1991–2026
Compliance record
MSHA citations since 2000
1,958
citations
456
significant & substantial
$1,802,082
proposed penalties
$1,547,451
paid to date
86% of proposed penalties paid to date, a $254,631 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
404
inspections on record
14,344
inspection hours
13.7
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.1,958 citations across 14,344 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.$1.8M
proposed penalties
$1.6M
current assessed
$1.5M
paid to date
$49K
outstanding
1,918 assessments are final orders; 44 contested dockets.
Of $627K in penalties contested before the Commission, $418K was upheld in final decisions.
As of the most recent assessment on 2026-06-18.
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.23.4%
significant & substantial
10.6%
high negligence or reckless
24.2%
reasonably likely or greater
43.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.2% none, 19.6% low, 69.6% moderate, 10.6% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Injury rate, 2025
ⓘ
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.1.12
total case rate
0.37
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
| Year | total case rate | days-away | fatal |
|---|---|---|---|
| 2026 | 2.25 | 1.50 | 0.000 |
| 2025 | 1.12 | 0.37 | 0.000 |
| 2024 | 1.45 | 0.72 | 0.000 |
| 2023 | 0.36 | 0.00 | 0.000 |
| 2022 | 2.32 | 1.16 | 0.000 |
| 2021 | 0.79 | 0.39 | 0.000 |
| 2020 | 1.59 | 0.00 | 0.000 |
| 2019 | 1.97 | 0.39 | 0.000 |
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
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: 2026-06-10
ⓘ
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.3%
of limit-tested samples over the exposure limit
212
samples
34
limit-tested
Most sampled contaminants
- Nuisance dust, total, <1% Qtz41 over
- Unlisted Particulate, respirable, <1% Qtz83
- Cristobalite, respirable45
- Respirable dust, <.1mg41
Area samples (mill and shop air)
Last sampled: 2003-03-19, 23 years ago1
samples
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.
When citations were contested
ⓘ
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
320
citations taken to the federal commission · 16% of citations on record
- Settled 281 · 88%
- Stood as issued 37 · 12%
- Vacated or withdrawn 2 · 1%
70%
S&S designation survived the contest
ⓘ
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.of 106 decided S&S contests · industry: 79%
30%
Penalty reduction in decided contests
$590K proposed, $414K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2021-01-24. Vacated and withdrawn citations are removed from the file this view attributes through, so that outcome is slightly undercounted here.
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 operator contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| WEST 2009-125M | Prevail | Manning | 2009 | $68K → $45K |
| WEST 2012-24M | Settlement | Bulluck | 2013 | $66K → $55K |
| WEST 2009-124M | Prevail | Manning | 2009 | $58K → $29K |
| WEST 2009-709M | Settlement | Bulluck | 2010 | $55K → $49K |
| WEST 2015-0618 | Default | Lesnick | 2015 | $43K → $43K |
| WEST 2007-648M | Settlement | Manning | 2008 | $34K → $22K |
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Top causes
- HANDLING OF MATERIALS 266 non-fatal
- SLIP OR FALL OF PERSON 148 non-fatal
- POWERED HAULAGE 69 non-fatal
- HANDTOOLS (NONPOWERED) 67 non-fatal
- MACHINERY 54 non-fatal
- DISORDERS (REPEATED TRAUMA) 30 non-fatal
Incident timeline
2026
4
2025
3
2024
4
2023
2
2022
6
2021
3
2020
4
2019
5
2018
3
2017
5
2016
8
2015
9
2014
12
2013
17
2012
15
2011
13
2010
18
2009
12
2008
33
2007
31
2006
23
2005
24
2004
30
2003
22
2002
25
2001
26
2000
29
1999
47
1998
32
1997
34
1996
40
1995
23
1994
42
1993
30
1992
40
1991
28
Mines on record
For insurers, brokers, and safety consultants
Where Imerys Filtration Minerals, Inc. 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.
The federal record itself stays free on this site. What costs money, and why.