Stationary Crushing Dept 410 has $21K in proposed MSHA penalties and $302 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
15
Years on record
1984–2024
Latest incident
Dec 2024
Compliance record
MSHA citations since 2000
139
citations
19
significant & substantial
$20,680
proposed penalties
$20,378
paid to date
99% of proposed penalties paid to date, a $302 gap.
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.
139 citations across 1,013 inspection hours.
Source: MSHA inspections data, updated weekly.
Stationary Crushing Dept 410 has $21K in proposed MSHA penalties and $302 outstanding across 0 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.
$21K
proposed penalties
$21K
current assessed
$20K
paid to date
$302
outstanding
139 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-28.
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.
Source: MSHA violations gravity and negligence coding, 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: 2026-01-09
0%
of limit-tested samples over the exposure limit
31
samples
22
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz12
Respirable dust, <.1mg9
Nuisance dust, respirable, <1% Qtz6
Nuisance dust, total, <1% Qtz4
Show the individual readings (31)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-01-09
Respirable dust, <.1mg
0
Front-end Loader Operator
2026-01-09
Nuisance dust, respirable, <1% Qtz
0.13
10
0.01
Truck Driver
2023-04-18
Nuisance dust, respirable, <1% Qtz
0.18
10
0.02
Truck Loader
2023-04-18
Respirable dust, <.1mg
0
Truck Driver
2023-04-18
Respirable dust, <.1mg
0
Crusher Oper/Worker
2022-09-20
Nuisance dust, respirable, <1% Qtz
0.21
10
0.02
Utility Man
2022-09-20
Nuisance dust, respirable, <1% Qtz
0.15
10
0.02
Truck Driver
2019-04-24
Nuisance dust, total, <1% Qtz
1.66
10
0.17
Truck Driver
2019-04-24
Nuisance dust, total, <1% Qtz
0
10
0.00
Front-end Loader Operator
2019-04-24
Nuisance dust, total, <1% Qtz
1.45
10
0.15
Truck Driver
2017-09-27
Quartz, respirable, >1% Qtz
0.6
2.91
0.21
Truck Driver
2017-09-27
Quartz, respirable, >1% Qtz
0.16
0.96
0.17
Crusher Oper/Worker
2017-09-27
Quartz, respirable, >1% Qtz
0.22
1.55
0.14
Truck Driver
2017-09-27
Quartz, respirable, >1% Qtz
0.25
1.55
0.16
Truck Driver
2013-10-29
Quartz, respirable, >1% Qtz
0.33
1.88
0.18
Truck Driver
2013-10-29
Respirable dust, <.1mg
0
Utility Man
2010-03-17
Respirable dust, <.1mg
0
Front-end Loader Operator
2010-03-17
Quartz, respirable, >1% Qtz
0.25
1.56
0.16
Truck Driver
2010-03-17
Quartz, respirable, >1% Qtz
0.14
1.42
0.10
Truck Driver
2010-03-17
Respirable dust, <.1mg
0
Crusher Oper/Worker
2004-10-19
Nuisance dust, total, <1% Qtz
1.37
10
0.14
Truck Driver
2004-10-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2004-10-19
Quartz, respirable, >1% Qtz
0.37
1.9
0.19
Laborer, Bullgang
2004-10-19
Quartz, respirable, >1% Qtz
0.19
1.55
0.12
Laborer, Bullgang
2004-10-19
Quartz, respirable, >1% Qtz
0.55
3
0.18
Crusher Oper/Worker
2003-03-26
Quartz, respirable, >1% Qtz
0.37
1.91
0.19
Truck Driver
2003-03-26
Quartz, respirable, >1% Qtz
1.13
2.4
0.47
Truck Driver
2003-03-26
Nuisance dust, respirable, <1% Qtz
0.46
10
0.05
Crusher Oper/Worker
2002-06-20
Nuisance dust, respirable, <1% Qtz
0.56
10
0.06
Crusher Oper/Worker
2002-06-20
Respirable dust, <.1mg
0
Truck Driver
2002-06-20
Respirable dust, <.1mg
0
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.
Stationary Crushing Dept 410 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 Iowa, metal and nonmetal mining averaged 1.72 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 *
6.44
0.00
0.000
2023 *
6.06
0.00
0.000
2022 *
11.71
5.86
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
* 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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
9
2025
9
2024
10
2023
11
2022
12
2021
10
2020
11
2019
11
2018
12
2017
14
2016
13
2015
11
2014
10
2013
9
2012
9
2011
14
2010
16
2009
15
2008
14
2007
15
2006
14
2005
13
2004
16
2003
13
2002
12
2001
12
2000
18
Source: MSHA quarterly employment and production, updated weekly.
Stationary Crushing Dept 410 sits in Muscatine County, Iowa, where the Census mining category is 0.1% 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.
Muscatine County, Iowa · Population 42,735
0.1%
Mining share of county employment
$69,512
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
Employee was trying to move screen with a pry bar and pulling towards themselves. Pry bar slipped and they struck themselves in the eyebrow with fist and prybar, causing a small cut on left eyebrow
Miner was using a long bar to move a motor over to mount it. EE felt like EE pulled something in EE's back. EE finished putting bolts on as long as EE could. Our miner went to the chiropractor after work thinking EE's back and hip went out. EE felt better after EE's adjustment. EE's pain came back but now it's EE's front right side around EE's waist.
2022 · 2 incidents
November 28, 2022IA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorSLIP OR FALL OF PERSON
EE was pulling into position to back up and dump stockpile truck #72308400. EE was stopped and waiting. Our Loader operator backed their Loader into the driver's door of the stockpile truck. EE thought EE was fine the day of the incident, but the next morning EE was very stiff and sore.
2017 · 2 incidents
January 31, 2017IA · Metal/Non-Metalrefuse truck driver, backfill truck driver, stock pile truck driverHANDLING OF MATERIALS
CLEANING SHOP FLOOR WITH A SHOVEL WHEN THE SHOVEL HANDLE BROKE. A PIECE OF WOOD PIERCED THE HAND AND WASN'T ABLE TO BE REMOVED WITHOUT A MEDICAL PROCEDURE.
2009 · 1 incident
February 7, 2009IA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee was working at the Moscow Quarry location when he slipped and fell on the ice. He wasn't sure exactly how he landed, but had left shoulder pain.
Employee was prying on a smooth surface to install a wear plate in synton feeder. bar lost grip and flew back and struck ee on right side of face next to nose resulting in three stitches.
1997 · 1 incident
February 13, 1997IA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
EMPLOYEE WAS USING A CHISEL AND HAMMER TO LOOSEN AIR VALVE ANDSTRUCK HIS THUMB WITH THE HAMMER WHEN HE MISSED THE CHISEL.
1985 · 2 incidents
September 26, 1985IA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
EMPLOYEE WAS USING A HAMMER TO DRIVE BEARINGS OUT OF A ROLLER & ACCIDENTALLY HIT HIS THUMB THE TIP OF HIS LEFT THUMB WAS LACERATED REQUIRING 5 SUTURES & HE CRUSHED THE BONE
1984 · 1 incident
March 19, 1984IA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)