Mining Incidents

DREDGING INC: 45 MSHA citations Metal/Non-Metal

Dredging Inc · Surface
Controlled by Jane E Martin
Camdenton, Camden County, MO  ·  Intermittent
MSHA Mine ID: 2301398

DREDGING INC has $5K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2003
45
citations
8
significant & substantial
$5,095
proposed penalties
$5,047
paid to date
99% of proposed penalties paid to date, a $48 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
41
inspections on record
334
inspection hours
n/a
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.
Rate withheld: 334 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

DREDGING INC has $5K in proposed MSHA penalties and $0 outstanding across 1 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
45 assessments are final orders; 1 contested dockets.
Of $443 in penalties contested before the Commission, $395 was upheld in final decisions.
As of the most recent assessment on 2023-03-28.
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.
17.8%
significant & substantial
6.7%
high negligence or reckless
17.8%
reasonably likely or greater
66.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 20.0% low, 73.3% moderate, 6.7% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, 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.
3 citations taken to the federal commission · 7% of citations on record
  • Settled 3 · 100%
100%
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 2 decided S&S contests · industry: 79%
11%
Penalty reduction in decided contests
$443 proposed, $395 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 2015-08-02.
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 mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
CENT 2015-0533 Settlement Lesnick 2015 $443 → $395
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
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: 2024-09-18
0%
of limit-tested samples over the exposure limit
6
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Quartz, respirable, >1% Qtz2
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-09-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-11-19 Respirable dust, <.1mg 0 Front-end Loader Operator
2015-05-12 Quartz, respirable, >1% Qtz 0.17 1.3 0.13 Front-end Loader Operator
2009-03-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-03-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-07-24 Quartz, respirable, >1% Qtz 0.27 0.79 0.34 Front-end Loader Operator
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.
Ownership history
  1. Dredging Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 8
2024 7
2023 8
2022 6
2021 7
2020 7
2019 8
2018 8
2017 9
2016 8
2015 5
2014 5
2013 5
2012 5
2011 4
2010 5
2009 4
2008 7
2007 6
2006 5
2005 5
2004 4
2003 4
2002 3
2001 4
2000 3
Source: MSHA quarterly employment and production, updated weekly.

DREDGING INC sits in Camden County, Missouri, where the Census mining category is 0.3% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Camden County, Missouri · Population 43,416
0.3%
Mining share of county employment
$62,927
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2026 Q2 287 0 0 0.0
2026 Q1 262 0 0 0.0
2025 Q4 257 0 0 0.0
2025 Q3 205 0 0 0.0
2025 Q2 331 0 0 0.0
2025 Q1 213 0 0 0.0
2024 Q4 250 0 0 0.0
2024 Q3 239 0 0 0.0
Show 95 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 380 0 0 0.0
2024 Q1 294 0 0 0.0
2023 Q4 270 0 0 0.0
2023 Q3 277 0 0 0.0
2023 Q2 439 0 0 0.0
2023 Q1 219 2 0 9132.4
2022 Q4 160 0 0 0.0
2022 Q3 193 0 0 0.0
2022 Q2 167 0 0 0.0
2022 Q1 209 0 0 0.0
2021 Q4 246 3 0 12195.1
2021 Q3 187 0 0 0.0
2021 Q2 130 0 0 0.0
2021 Q1 345 0 0 0.0
2020 Q4 174 1 0 5747.1
2020 Q3 239 0 0 0.0
2020 Q2 152 0 0 0.0
2020 Q1 140 0 0 0.0
2019 Q4 241 5 0 20746.9
2019 Q3 391 0 0 0.0
2019 Q2 306 0 0 0.0
2019 Q1 134 0 0 0.0
2018 Q4 310 1 0 3225.8
2018 Q3 359 0 0 0.0
2018 Q2 257 6 1 23346.3
2018 Q1 139 0 0 0.0
2017 Q4 237 0 0 0.0
2017 Q3 396 0 0 0.0
2017 Q2 408 2 0 4902.0
2017 Q1 531 0 0 0.0
2016 Q4 277 0 0 0.0
2016 Q3 334 0 0 0.0
2016 Q2 529 1 0 1890.4
2016 Q1 190 0 0 0.0
2015 Q4 341 0 0 0.0
2015 Q3 359 0 0 0.0
2015 Q2 329 3 2 9118.5
2015 Q1 226 0 0 0.0
2014 Q4 144 0 0 0.0
2014 Q3 378 0 0 0.0
2014 Q2 473 2 0 4228.3
2014 Q1 194 0 0 0.0
2013 Q4 255 0 0 0.0
2013 Q3 341 0 0 0.0
2013 Q2 409 0 0 0.0
2013 Q1 225 0 0 0.0
2012 Q4 416 1 0 2403.8
2012 Q3 287 0 0 0.0
2012 Q2 305 0 0 0.0
2012 Q1 311 3 1 9646.3
2011 Q4 319 0 0 0.0
2011 Q3 232 1 0 4310.3
2011 Q2 178 0 0 0.0
2011 Q1 77 0 0 0.0
2010 Q4 130 0 0 0.0
2010 Q3 94 0 0 0.0
2010 Q2 204 0 0 0.0
2010 Q1 167 0 0 0.0
2009 Q4 141 2 1 14184.4
2009 Q3 145 0 0 0.0
2009 Q2 404 0 0 0.0
2009 Q1 357 3 1 8403.4
2008 Q4 353 0 0 0.0
2008 Q3 388 0 0 0.0
2008 Q2 693 0 0 0.0
2008 Q1 503 0 0 0.0
2007 Q4 714 2 0 2801.1
2007 Q3 761 0 0 0.0
2007 Q2 744 0 0 0.0
2007 Q1 411 0 0 0.0
2006 Q4 1,000 4 1 4000.0
2006 Q3 578 0 0 0.0
2006 Q2 568 0 0 0.0
2006 Q1 608 0 0 0.0
2005 Q4 426 0 0 0.0
2005 Q3 480 0 0 0.0
2005 Q2 492 0 0 0.0
2005 Q1 480 0 0 0.0
2004 Q4 791 0 0 0.0
2004 Q3 510 0 0 0.0
2004 Q2 505 0 0 0.0
2004 Q1 413 0 0 0.0
2003 Q4 412 0 0 0.0
2003 Q3 490 0 0 0.0
2003 Q2 493 0 0 0.0
2003 Q1 401 3 1 7481.3
2002 Q4 452 0 0 0.0
2002 Q2 950 0 0 0.0
2002 Q1 244 0 0 0.0
2001 Q4 972 0 0 0.0
2001 Q3 1,920 0 0 0.0
2001 Q2 1,452 0 0 0.0
2000 Q4 972 0 0 0.0
2000 Q2 1,031 0 0 0.0
2000 Q1 972 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.