Mining Incidents

Ridgdill & Son: 121 MSHA citations Metal/Non-Metal

Controlled by Morris E Ridgdill
Clewiston, Glades County, FL  ·  Active
MSHA Mine ID: 0801096

Ridgdill & Son has $32K in proposed MSHA penalties and $302 outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2017
Latest incident
Oct 2017
Compliance record
MSHA citations since 2000
121
citations
31
significant & substantial
$32,027
proposed penalties
$19,937
paid to date
62% of proposed penalties paid to date, a $12,090 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
78
inspections on record
830
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: 830 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Ridgdill & Son has $32K in proposed MSHA penalties and $302 outstanding across 2 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.
$32K
proposed penalties
$20K
current assessed
$20K
paid to date
$302
outstanding
119 assessments are final orders; 2 contested dockets.
Of $19K in penalties contested before the Commission, $7K was upheld in final decisions.
As of the most recent assessment on 2026-07-31.
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.
25.6%
significant & substantial
9.9%
high negligence or reckless
25.6%
reasonably likely or greater
43.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.8% low, 84.3% moderate, 9.9% 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.
4 citations taken to the federal commission · 3% of citations on record
  • Settled 4 · 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 4 decided S&S contests · industry: 79%
64%
Penalty reduction in decided contests
$18K proposed, $6K 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 2007-09-17.
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
SE 2007-479M Settlement Melick 2008 $18K → $6K
SE 20010014M Settlement Barbour 2000 $283 → $283
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: 2024-09-24
0%
of limit-tested samples over the exposure limit
27
samples
5
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg20
  • Aluminum oxide dust2
  • Arsenic dust2
  • Beryllium dust2
Show the individual readings (51)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-09-24 Respirable dust, <.1mg 0 Backhoe Operator
2024-09-24 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-09-24 Respirable dust, <.1mg 0 Truck Driver
2024-09-24 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-11-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-11-30 Respirable dust, <.1mg 0 Backhoe Operator
2022-11-30 Respirable dust, <.1mg 0 Truck Driver
2019-02-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-02-26 Respirable dust, <.1mg 0 Backhoe Operator
2019-02-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-12 Respirable dust, <.1mg 0 Backhoe Operator
2013-11-13 Respirable dust, <.1mg 0 Backhoe Operator
2013-11-13 Respirable dust, <.1mg 0 Backhoe Operator
2013-11-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-09-21 Respirable dust, <.1mg 0 Mechanic
2011-09-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-02-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-02-04 Respirable dust, <.1mg 0 Backhoe Operator
2001-12-12 Unlisted Particulate, respirable, <1% Qtz 0.15 Backhoe Operator
2001-12-12 Unlisted Particulate, respirable, <1% Qtz 0.18 Front-end Loader Operator
2001-06-12 Iron soluble salts 0 1 0.00 Front-end Loader Operator
2001-06-12 Lead, inorganic dust 0 150 0.00 Front-end Loader Operator
2001-06-12 Manganese dust 0 5 0.00 Front-end Loader Operator
2001-06-12 Nuisance dust, total, <1% Qtz 1.1 10 0.11 Front-end Loader Operator
2001-06-12 Nickel dust & salts 0 1 0.00 Front-end Loader Operator
2001-06-12 Titanium dioxide dust 0 10 0.00 Front-end Loader Operator
2001-06-12 Vanadium dust 0 500 0.00 Front-end Loader Operator
2001-06-12 Molybdenum dust 0 10 0.00 Front-end Loader Operator
2001-06-12 Aluminum oxide dust 0 10 0.00 Front-end Loader Operator
2001-06-12 Arsenic dust 0 500 0.00 Front-end Loader Operator
2001-06-12 Beryllium dust 0 2 0.00 Front-end Loader Operator
2001-06-12 Cadmium dust & salts 0 200 0.00 Front-end Loader Operator
2001-06-12 Chromium, soluble 1.23 500 0.00 Front-end Loader Operator
2001-06-12 Cobalt dust 0 100 0.00 Front-end Loader Operator
2001-06-12 Copper dust and mist 0 1 0.00 Front-end Loader Operator
2001-06-12 Iron soluble salts 0 1 0.00 Front-end Loader Operator
2001-06-12 Lead, inorganic dust 0 150 0.00 Front-end Loader Operator
2001-06-12 Manganese dust 0 5 0.00 Front-end Loader Operator
2001-06-12 Molybdenum dust 0 10 0.00 Front-end Loader Operator
2001-06-12 Nickel dust & salts 0 1 0.00 Front-end Loader Operator
2001-06-12 Titanium dioxide dust 0 10 0.00 Front-end Loader Operator
2001-06-12 Vanadium dust 0 500 0.00 Front-end Loader Operator
2001-06-12 Aluminum oxide dust 0 10 0.00 Front-end Loader Operator
2001-06-12 Arsenic dust 0 500 0.00 Front-end Loader Operator
2001-06-12 Beryllium dust 0 2 0.00 Front-end Loader Operator
2001-06-12 Cadmium dust & salts 0 200 0.00 Front-end Loader Operator
2001-06-12 Chromium, soluble 1.23 500 0.00 Front-end Loader Operator
2001-06-12 Cobalt dust 0 100 0.00 Front-end Loader Operator
2001-06-12 Copper dust and mist 0 1 0.00 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.

Ridgdill & Son recorded 0.00 reportable injury cases per 100 full-time workers in 2024.

Injury rate, 2024
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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.77 and the all-US-mining average was 2.08 cases per 100 workers.
In Florida, metal and nonmetal mining averaged 1.49 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2024 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 0.00 0.00 0.000
2017 * 9.52 9.52 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
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.
Ownership history
  1. Apac-Florida Inc 1988 to 1990
  2. Ridgdill & Son Construction 1990 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 9
2025 9
2024 9
2023 7
2022 7
2021 11
2020 12
2019 12
2018 10
2017 9
2016 6
2015 6
2014 6
2013 6
2012 5
2011 4
2010 6
2009 6
2008 6
2007 6
2006 6
2005 5
2004 5
2003 4
2002 3
2001 3
2000 4
Source: MSHA quarterly employment and production, updated weekly.

Ridgdill & Son sits in Glades County, Florida, 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.
Glades County, Florida · Population 12,324
0.3%
Mining share of county employment
$38,905
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 4,869 0 0 0.0
2025 Q4 5,255 0 0 0.0
2025 Q3 2,603 0 0 0.0
2025 Q2 5,878 0 0 0.0
2025 Q1 5,039 0 0 0.0
2024 Q4 4,936 0 0 0.0
2024 Q3 5,121 0 0 0.0
2024 Q2 5,534 0 0 0.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 5,992 0 0 0.0
2023 Q4 4,950 0 0 0.0
2023 Q3 3,965 0 0 0.0
2023 Q2 3,572 0 0 0.0
2023 Q1 4,273 0 0 0.0
2022 Q4 3,714 2 0 538.5
2022 Q3 4,484 0 0 0.0
2022 Q2 3,666 1 1 272.8
2022 Q1 4,015 2 1 498.1
2021 Q4 5,954 0 0 0.0
2021 Q3 6,987 0 0 0.0
2021 Q2 8,415 3 0 356.5
2021 Q1 7,331 0 0 0.0
2020 Q4 6,592 5 0 758.5
2020 Q3 8,067 0 0 0.0
2020 Q2 8,654 5 0 577.8
2020 Q1 9,012 1 0 111.0
2019 Q4 7,159 0 0 0.0
2019 Q3 7,776 7 3 900.2
2019 Q2 6,332 0 0 0.0
2019 Q1 7,086 2 1 282.2
2018 Q4 8,183 0 0 0.0
2018 Q3 7,778 0 0 0.0
2018 Q2 6,332 1 0 157.9
2018 Q1 6,431 0 0 0.0
2017 Q4 5,870 1 0 170.4
2017 Q3 5,700 0 0 0.0
2017 Q2 5,327 1 0 187.7
2017 Q1 4,121 0 0 0.0
2016 Q4 3,026 1 0 330.5
2016 Q3 3,402 0 0 0.0
2016 Q2 4,763 1 0 210.0
2016 Q1 4,464 0 0 0.0
2015 Q4 3,323 0 0 0.0
2015 Q3 3,339 0 0 0.0
2015 Q2 3,325 1 0 300.8
2015 Q1 3,331 0 0 0.0
2014 Q4 3,340 6 0 1796.4
2014 Q3 3,360 0 0 0.0
2014 Q2 3,655 2 0 547.2
2014 Q1 3,680 0 0 0.0
2013 Q4 3,704 1 1 270.0
2013 Q3 3,725 0 0 0.0
2013 Q2 3,176 3 1 944.6
2013 Q1 3,180 0 0 0.0
2012 Q4 2,723 0 0 0.0
2012 Q3 2,700 0 0 0.0
2012 Q2 2,098 1 0 476.6
2012 Q1 1,947 1 0 513.6
2011 Q4 2,037 0 0 0.0
2011 Q3 2,045 1 0 489.0
2011 Q2 2,051 0 0 0.0
2011 Q1 2,015 1 0 496.3
2010 Q4 2,936 0 0 0.0
2010 Q3 2,944 1 1 339.7
2010 Q2 2,935 0 0 0.0
2010 Q1 2,825 5 2 1769.9
2009 Q4 2,850 0 0 0.0
2009 Q3 3,023 0 0 0.0
2009 Q2 3,082 3 1 973.4
2009 Q1 3,130 5 0 1597.4
2008 Q4 3,210 0 0 0.0
2008 Q3 3,260 0 0 0.0
2008 Q2 3,292 0 0 0.0
2008 Q1 3,325 0 0 0.0
2007 Q4 3,322 2 1 602.0
2007 Q3 3,325 5 4 1503.8
2007 Q2 3,288 0 0 0.0
2007 Q1 3,299 0 0 0.0
2006 Q4 3,284 6 0 1827.0
2006 Q3 3,830 0 0 0.0
2006 Q2 3,838 0 0 0.0
2006 Q1 2,750 4 0 1454.5
2005 Q4 2,744 0 0 0.0
2005 Q3 2,734 2 1 731.5
2005 Q2 2,766 0 0 0.0
2005 Q1 2,754 0 0 0.0
2004 Q4 2,760 2 1 724.6
2004 Q3 2,372 0 0 0.0
2004 Q2 2,380 2 1 840.3
2004 Q1 2,735 0 0 0.0
2003 Q4 2,129 6 1 2818.2
2003 Q3 2,638 2 0 758.2
2003 Q2 2,123 0 0 0.0
2003 Q1 2,055 2 0 973.2
2002 Q4 1,575 0 0 0.0
2002 Q3 1,535 4 3 2605.9
2002 Q2 1,524 0 0 0.0
2002 Q1 1,529 0 0 0.0
2001 Q4 1,536 3 2 1953.1
2001 Q3 1,540 0 0 0.0
2001 Q2 1,548 1 0 646.0
2001 Q1 2,555 0 0 0.0
2000 Q4 2,547 2 1 785.2
2000 Q3 2,561 0 0 0.0
2000 Q2 2,557 3 1 1173.2
2000 Q1 2,560 8 3 3125.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2017 · 1 incident

October 5, 2017 FL · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDLING OF MATERIALS
Ridgdill & Son Construction · Struck by falling object

Sprained twisted ankle original diagnosis was bad sprain or mash by heavy object. No broken bones or skin swelling only. Clear early morning clearing rock and debris from crusher while shut down. Moved one rock and had foot injured by falling rock or impact bar not sure, failure to pay attention while moving debris contributed to debris on foot and a sprained or bruised foot.