The National Lime & Stone Company: 1,292 MSHA citations operator
Controlled by
National Lime & Stone Co.
MSHA operator ID: L00317
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Email me when a new MSHA incident is filed at any The National Lime & Stone Company mine.
- Fatalities
- 0
- Total incidents
- 739
- Mines on record
- 16
- Years on record
- 1983–2026
Compliance record
MSHA citations since 2000
1,292
citations
196
significant & substantial
$264,303
proposed penalties
$247,358
paid to date
94% of proposed penalties paid to date, a $16,945 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
801
inspections on record
14,992
inspection hours
8.6
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.1,292 citations across 14,992 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.$264K
proposed penalties
$250K
current assessed
$247K
paid to date
$3K
outstanding
1,256 assessments are final orders; 26 contested dockets.
Of $90K in penalties contested before the Commission, $76K was upheld in final decisions.
As of the most recent assessment on 2026-07-13.
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.15.3%
significant & substantial
1.9%
high negligence or reckless
15.2%
reasonably likely or greater
44.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.2% none, 23.4% low, 74.5% moderate, 1.9% 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.3.09
total case rate
1.93
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 | 2.94 | 1.47 | 0.000 |
| 2025 | 3.09 | 1.93 | 0.000 |
| 2024 | 3.87 | 1.55 | 0.000 |
| 2023 | 3.72 | 2.07 | 0.000 |
| 2022 | 2.57 | 1.72 | 0.000 |
| 2021 | 2.34 | 1.40 | 0.000 |
| 2020 | 1.65 | 0.83 | 0.000 |
| 2019 | 2.68 | 1.79 | 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: 2026-06-25
ⓘ
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.4%
of limit-tested samples over the exposure limit
502
samples
334
limit-tested
Most sampled contaminants
- Nuisance dust, total, <1% Qtz5912 over
- Quartz, respirable, >1% Qtz1133 over
- Respirable dust, <.1mg145
- Nuisance dust, respirable, <1% Qtz62
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.
24
citations taken to the federal commission · 2% of citations on record
- Settled 17 · 71%
- Stood as issued 5 · 21%
- Still open 2 · 8%
80%
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 15 decided S&S contests · industry: 79%
15%
Penalty reduction in decided contests
$84K proposed, $71K 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 2026-03-11. 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 2012-764M | Settlement | Miller | 2014 | $81K → $69K |
| LAKE20020122M | Settlement | Barbour | 2002 | $2K → $900 |
| LAKE20010177M | Settlement | Barbour | 2001 | $2K → $1K |
| LAKE20000101M | Default | Barbour | 2000 | $1K → $1K |
| LAKE20020053M | Settlement | Barbour | 2002 | $760 → $400 |
| LAKE 2014-0256 | Settlement | Bulluck | 2015 | $499 → $100 |
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
Top causes
- HANDLING OF MATERIALS 259 non-fatal
- SLIP OR FALL OF PERSON 165 non-fatal
- HANDTOOLS (NONPOWERED) 103 non-fatal
- MACHINERY 70 non-fatal
- POWERED HAULAGE 53 non-fatal
- DISORDERS (REPEATED TRAUMA) 20 non-fatal
Incident timeline
2026
5
2025
9
2024
10
2023
10
2022
6
2021
5
2020
5
2019
8
2018
6
2017
6
2016
5
2015
12
2014
4
2013
13
2012
10
2011
5
2010
4
2009
8
2008
9
2007
14
2006
11
2005
27
2004
22
2003
37
2002
26
2001
35
2000
44
1999
25
1998
23
1997
23
1996
24
1995
23
1994
32
1993
32
1992
26
1991
29
1990
31
1989
19
1988
16
1987
19
1986
10
1985
14
1984
19
1983
18
Mines on record
- CAREY PLANT OH
- LIMA PLANT OH
- Columbus Region Plant OH
- Findlay Plant OH
- Ottawa Plant OH
- South Columbus Sand and Gravel Plant OH
- BUCYRUS PLANT OH
- BUCKLAND PLANT OH
- Chesterville Sand & Gravel Plant OH
- MARION PLANT OH
- South Columbus Aggregate Plant OH
- Rimer Plant OH
- Upper Sandusky OH
- Upper Sandusky Plant OH
- WAPAKONETA PLANT OH
- Findlay Plant OH
For insurers, brokers, and safety consultants
Where The National Lime & Stone Company 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.