Mining Incidents

Clinton Dry Plant: 54 MSHA citations Metal/Non-Metal

Barron, Barron County, WI  ·  Intermittent
MSHA Mine ID: 4703671

Clinton Dry Plant has $9K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
5
Years on record
2012–2018
Latest incident
Jul 2018
Compliance record
MSHA citations since 2012
54
citations
12
significant & substantial
$8,950
proposed penalties
$8,467
paid to date
95% of proposed penalties paid to date, a $483 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2012
41
inspections on record
575
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: 575 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2013-10-21.
On record since 2013.
Source: MSHA imminent-danger order records, updated weekly.

Clinton Dry Plant has $9K in proposed MSHA penalties and $0 outstanding across 3 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.
$9K
proposed penalties
$8K
current assessed
$8K
paid to date
$0
outstanding
53 assessments are final orders; 3 contested dockets.
Of $2K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2025-11-13.
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.
22.6%
significant & substantial
0.0%
high negligence or reckless
22.6%
reasonably likely or greater
50.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 39.6% low, 60.4% moderate, 0.0% 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.
8 citations taken to the federal commission · 15% of citations on record
  • Settled 5 · 63%
  • Stood as issued 1 · 13%
  • Vacated or withdrawn 2 · 25%
33%
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 3 decided S&S contests · industry: 79%
41%
Penalty reduction in decided contests
$2K proposed, $1K 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 2019-07-23.
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
LAKE 2019-0331 Settlement Gill 2019 $1K → $484
LAKE 2014-176M Default Lesnick 2014 $601 → $601
LAKE 2015-0645 Settlement McCarthy 2015 $307 → $100
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: 2025-12-02
26%
of limit-tested samples over the exposure limit
33
samples
19
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz215 over
  • Respirable dust, <.1mg12
Show the individual readings (33)
Date Contaminant Concentration Limit Conc / limit Occupation
2015-11-24 Quartz, respirable, >1% Qtz 0.42 0.32 1.31 Utility Man
2015-11-24 Quartz, respirable, >1% Qtz 0.57 0.36 1.58 Dry Screen Plant Operator
2015-11-24 Quartz, respirable, >1% Qtz 2.61 1.08 2.42 Utility Man
2015-05-21 Quartz, respirable, >1% Qtz 0.49 0.48 1.02 Utility Man
2013-04-02 Quartz, respirable, >1% Qtz 0.95 0.68 1.40 Laborer, Bullgang
2025-12-02 Quartz, respirable, >1% Qtz 0.2 0.79 0.25 Sampler, Dust
2025-12-02 Quartz, respirable, >1% Qtz 0.84 0.87 0.97 Utility Man
2025-12-02 Quartz, respirable, >1% Qtz 0.31 0.71 0.44 Mechanic
2020-10-29 Quartz, respirable, >1% Qtz 0.69 0.73 0.95 Mechanic
2020-10-29 Quartz, respirable, >1% Qtz 0.18 0.6 0.30 Sand Filler (Dry)
2019-11-13 Quartz, respirable, >1% Qtz 0.24 0.47 0.51 Utility Man
2019-11-13 Respirable dust, <.1mg 0 Sampler, Dust
2019-05-22 Respirable dust, <.1mg 0 Utility Man
2019-05-22 Respirable dust, <.1mg 0 Building Repair/Maint.
2019-05-22 Quartz, respirable, >1% Qtz 0.14 0.44 0.32 Track Man/Gang
2019-05-22 Respirable dust, <.1mg 0 Sampler, Dust
2019-02-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-02-12 Respirable dust, <.1mg 0 Mechanic
2019-02-12 Respirable dust, <.1mg 0 Cleanup Man
2019-02-12 Respirable dust, <.1mg 0 Sampler, Dust
2018-03-13 Quartz, respirable, >1% Qtz 0.69 Kiln/Dryer Operator
2018-03-13 Quartz, respirable, >1% Qtz 0.25 Kiln/Dryer Operator
2018-03-13 Respirable dust, <.1mg 0 Yard Engine Operator
2018-03-13 Respirable dust, <.1mg 0 Mechanic
2017-03-15 Quartz, respirable, >1% Qtz 0.27 0.65 0.42 Dry Screen Plant Operator
2017-03-15 Quartz, respirable, >1% Qtz 0.33 0.48 0.69 Utility Man
2017-03-15 Quartz, respirable, >1% Qtz 0.32 0.52 0.62 Utility Man
2015-11-24 Quartz, respirable, >1% Qtz 0.14 0.43 0.33 Mechanic
2015-05-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2015-05-21 Respirable dust, <.1mg 0 Track Man/Gang
2015-05-21 Quartz, respirable, >1% Qtz 0.16 0.61 0.26 Mechanic
2013-06-25 Quartz, respirable, >1% Qtz 0.23 0.32 0.72 Laborer, Bullgang
2013-04-02 Quartz, respirable, >1% Qtz 0.48 1.03 0.47 Sand Filler (Dry)
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.

Clinton Dry Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2025.

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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Wisconsin, metal and nonmetal mining averaged 1.80 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
2025 * 0.00 0.00 0.000
2024 * 0.00 0.00 0.000
2023 * 0.00 0.00 0.000
2022 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 2.57 0.00 0.000
2017 0.00 0.00 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. Superior Silica Sands LLC 2012 to 2022
  2. Blue Diamond Proppants, LLC 2022 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 11
2025 16
2024 18
2023 28
2022 22
2021 19
2020 13
2019 27
2018 38
2017 47
2016 48
2015 41
2014 38
2013 32
2012 31
Source: MSHA quarterly employment and production, updated weekly.

Clinton Dry Plant sits in Barron County, Wisconsin, where the Census mining category is 0.7% 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.
Barron County, Wisconsin · Population 46,741
0.7%
Mining share of county employment
$64,619
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 5,046 0 0 0.0
2026 Q1 6,030 0 0 0.0
2025 Q4 7,697 1 1 129.9
2025 Q3 9,289 0 0 0.0
2025 Q2 7,661 0 0 0.0
2025 Q1 7,566 1 0 132.2
2024 Q4 4,219 0 0 0.0
2024 Q3 10,699 0 0 0.0
Show 47 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 5,654 0 0 0.0
2024 Q1 8,184 0 0 0.0
2023 Q4 8,874 1 0 112.7
2023 Q3 17,811 0 0 0.0
2023 Q2 14,790 3 0 202.8
2023 Q1 19,796 0 0 0.0
2022 Q4 9,123 0 0 0.0
2022 Q3 11,578 0 0 0.0
2022 Q2 9,437 0 0 0.0
2022 Q1 9,120 0 0 0.0
2021 Q4 9,904 0 0 0.0
2021 Q3 8,814 0 0 0.0
2021 Q2 6,459 0 0 0.0
2021 Q1 7,549 0 0 0.0
2020 Q4 4,904 2 0 407.8
2020 Q3 2,819 0 0 0.0
2020 Q2 800 0 0 0.0
2020 Q1 10,396 0 0 0.0
2019 Q4 11,084 1 0 90.2
2019 Q3 15,769 0 0 0.0
2019 Q2 17,999 9 1 500.0
2019 Q1 14,487 1 0 69.0
2018 Q4 15,279 0 0 0.0
2018 Q3 16,225 0 0 0.0
2018 Q2 20,529 0 0 0.0
2018 Q1 25,809 0 0 0.0
2017 Q4 22,930 2 1 87.2
2017 Q3 27,311 0 0 0.0
2017 Q2 38,458 0 0 0.0
2017 Q1 24,469 5 3 204.3
2016 Q4 18,703 0 0 0.0
2016 Q3 21,909 0 0 0.0
2016 Q2 19,938 2 1 100.3
2016 Q1 18,028 3 0 166.4
2015 Q4 16,784 1 1 59.6
2015 Q3 22,358 2 0 89.5
2015 Q2 23,485 7 1 298.1
2015 Q1 30,896 0 0 0.0
2014 Q4 27,877 0 0 0.0
2014 Q3 19,838 0 0 0.0
2014 Q2 20,957 0 0 0.0
2014 Q1 28,118 0 0 0.0
2013 Q4 20,111 2 1 99.4
2013 Q3 19,854 0 0 0.0
2013 Q2 16,638 2 0 120.2
2013 Q1 15,480 0 0 0.0
2012 Q4 12,519 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

5 on file

2018 · 1 incident

July 30, 2018 WI · Metal/Non-Metal dry screening plant operator, screen house operator STRIKING OR BUMPING
Superior Silica Sands LLC · Struck against stationary object

Employee was checking rock boxes on top of a rotex when EE crawled under a metal I beam EE then stood up forgetting it was there and struck EE's back against the I beam. Employee finished the shift and then seeked medical attention the following day.

2013 · 1 incident

November 15, 2013 WI · Metal/Non-Metal pumper HANDLING OF MATERIALS
Superior Silica Sands LLC · Over-exertion (Not Elsewhere Classified)

On Tuesday 11/19/13 EE reported to his lead, that he was experiencing severe pain in his abdomen area. He said that on Friday he and a co-worker were changing the upper Rotex screens and he felt some pain in his stomach but thought nothing of it. EE had surgery to repair a hernia. He will be off at least ten days and will be able to return to work with restrictions.

2012 · 3 incidents

October 19, 2012 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Superior Silica Sands LLC · Over-exertion (Not Elsewhere Classified)

Employee and 3 others were moving sidewall panel. While walking backwards, he stepped in a small trench. When he stepped down he jerked upwards and felt a pull in his scrotum. Went to the doctor 10/20/2012 who confirmed Scrotal Varicocele.

October 18, 2012 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Superior Silica Sands LLC · Over-exertion in lifting objects

Employee was attempting to move one end of a tank panel by himself. The vertical bolts got stuck on the sheet beneath the one he was attempting to move. As he jerked on the sheet he felt a pull in his back. He reported to me a few minutes later that he could feel his back hurting. I then took him to the clinic and the doctor revealed a pulled muscle.

October 3, 2012 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STEPPING OR KNEELING ON OBJECT
Superior Silica Sands LLC · Struck against stationary object

EE was carrying a bucket of nails/bolts that weighed about 35 - 40 pounds. He slung it around his shoulder to carry and while he was walking he stepped on a baseball sized rock which made him lose his balance. He was able to stay on his feet, but in the process twisted his back.