Huber Carbonates, LLC: 1,339 MSHA citations operator
Controlled by
J M Huber Corp
MSHA operator ID: 0159734
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Email me when a new MSHA incident is filed at any Huber Carbonates, LLC mine.
- Fatalities
- 0
- Total incidents
- 148
- Mines on record
- 4
- Years on record
- 2015–2026
Compliance record
MSHA citations since 2015
1,339
citations
181
significant & substantial
$688,154
proposed penalties
$580,821
paid to date
84% of proposed penalties paid to date, a $107,333 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
284
inspections on record
13,287
inspection hours
10.1
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.1,339 citations across 13,287 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.$344K
proposed penalties
$304K
current assessed
$304K
paid to date
$151
outstanding
860 assessments are final orders; 29 contested dockets.
Of $136K in penalties contested before the Commission, $50K was upheld in final decisions.
As of the most recent assessment on 2026-04-22.
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.13.6%
significant & substantial
6.3%
high negligence or reckless
13.8%
reasonably likely or greater
31.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.1% none, 15.8% low, 77.9% moderate, 6.3% 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.2.32
total case rate
1.29
days-away rate
0.000
fatality rate
Above 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 | 2.31 | 1.39 | 0.000 |
| 2025 | 2.32 | 1.29 | 0.000 |
| 2024 | 2.92 | 1.86 | 0.000 |
| 2023 | 3.29 | 1.10 | 0.000 |
| 2022 | 2.41 | 0.80 | 0.000 |
| 2021 | 3.95 | 3.35 | 0.000 |
| 2020 | 2.78 | 1.24 | 0.000 |
| 2019 | 5.44 | 2.42 | 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: 2026-04-21
ⓘ
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.13%
of limit-tested samples over the exposure limit
325
samples
283
limit-tested
Most sampled contaminants
- Nuisance dust, total, <1% Qtz14934 over
- Quartz, respirable, >1% Qtz282 over
- Diesel particulate (total carbon)85
- Nuisance dust, respirable, <1% Qtz40
Area samples (mill and shop air)
Last sampled: 2026-03-2544
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.
168
citations taken to the federal commission · 13% of citations on record
- Settled 162 · 96%
- Stood as issued 6 · 4%
61%
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 70 decided S&S contests · industry: 79%
47%
Penalty reduction in decided contests
$256K proposed, $137K 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 2024-02-06. 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 |
|---|---|---|---|---|
| LAKE 2019-0136 | Settlement | Manning | 2019 | $57K → $24K |
| CENT 2024-0007 | Settlement | Lewis | 2025 | $13K → $3K |
| CENT 2022-0105 | Settlement | Simonton | 2023 | $12K → $5K |
| LAKE 2019-0133 | Withdrawal | Manning | 2019 | $7K → $2K |
| LAKE 2019-0135 | Settlement | Manning | 2019 | $6K → $2K |
| LAKE 2020-0124 | Settlement | Moran | 2021 | $6K → $1K |
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Top causes
- HANDLING OF MATERIALS 65 non-fatal
- SLIP OR FALL OF PERSON 35 non-fatal
- POWERED HAULAGE 12 non-fatal
- HANDTOOLS (NONPOWERED) 9 non-fatal
- MACHINERY 8 non-fatal
- OTHER 8 non-fatal
Incident timeline
2026
5
2025
10
2024
11
2023
13
2022
10
2021
14
2020
9
2019
18
2018
19
2017
15
2016
16
2015
8
Mines on record
- Michel Mine TX
- Quincy Plant IL
- Quincy Mine IL
- Miss Linda Mine GA
For insurers, brokers, and safety consultants
Where Huber Carbonates, LLC 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.