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.
129 citations across 1,297 inspection hours.
Source: MSHA inspections data, updated weekly.
Moore Quarry has $37K 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.
$37K
proposed penalties
$37K
current assessed
$37K
paid to date
$0
outstanding
128 assessments are final orders; 1 contested dockets.
Of $293 in penalties contested before the Commission, $293 was upheld in final decisions.
As of the most recent assessment on 2026-04-30.
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.
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.
1citations taken to the federal commission · 1% of citations on record
Settled
1 · 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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 1 decided S&S contests · industry: 79%
0%
Penalty reduction in decided contests
$293 proposed, $293 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2019-03-05.
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.
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: 2025-07-01
0%
of limit-tested samples over the exposure limit
26
samples
18
limit-tested
Most sampled contaminants
Nuisance dust, respirable, <1% Qtz18
Respirable dust, <.1mg8
Show the individual readings (26)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-07-01
Respirable dust, <.1mg
0
Utility Man
2025-07-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-11-30
Nuisance dust, respirable, <1% Qtz
0.34
10
0.03
Bobcat Operator
2016-11-30
Respirable dust, <.1mg
0
Truck Driver
2016-11-30
Respirable dust, <.1mg
0
Truck Driver
2014-02-19
Nuisance dust, respirable, <1% Qtz
0.35
10
0.04
Front-end Loader Operator
2014-02-19
Nuisance dust, respirable, <1% Qtz
1.15
10
0.12
Utility Man
2014-02-19
Nuisance dust, respirable, <1% Qtz
0.36
10
0.04
Crusher Oper/Worker
2012-02-22
Nuisance dust, respirable, <1% Qtz
2.5
10
0.25
Truck Driver
2012-02-22
Nuisance dust, respirable, <1% Qtz
0.26
10
0.03
Drill Operator, Rotary
2012-02-22
Nuisance dust, respirable, <1% Qtz
0.17
10
0.02
Truck Driver
2012-02-22
Nuisance dust, respirable, <1% Qtz
0.85
10
0.09
Crusher Oper/Worker
2012-02-22
Nuisance dust, respirable, <1% Qtz
1.13
10
0.11
Cleanup Man
2009-12-22
Nuisance dust, respirable, <1% Qtz
0.33
10
0.03
Truck Driver
2009-12-22
Respirable dust, <.1mg
0
Bobcat Operator
2009-12-22
Nuisance dust, respirable, <1% Qtz
1.41
10
0.14
Front-end Loader Operator
2003-11-26
Nuisance dust, respirable, <1% Qtz
0.32
10
0.03
Crusher Oper/Worker
2003-11-26
Nuisance dust, respirable, <1% Qtz
0.92
10
0.09
Laborer, Bullgang
2003-11-26
Respirable dust, <.1mg
0
Drill Operator, Rotary
2003-11-26
Respirable dust, <.1mg
0
Crusher Oper/Worker
2003-11-26
Nuisance dust, respirable, <1% Qtz
0.65
10
0.07
Laborer, Bullgang
2002-11-21
Nuisance dust, respirable, <1% Qtz
0.4
10
0.04
Crusher Oper/Worker
2002-11-21
Nuisance dust, respirable, <1% Qtz
0.71
10
0.07
Truck Driver
2002-11-21
Nuisance dust, respirable, <1% Qtz
1.02
10
0.10
Front-end Loader Operator
2002-11-21
Respirable dust, <.1mg
0
Truck Driver
2002-11-21
Nuisance dust, respirable, <1% Qtz
2.22
10
0.22
Crusher Oper/Worker
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.
Moore Quarry 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 *
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
2020 *
4.78
2.39
2.392
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
27
2025
28
2024
29
2023
30
2022
32
2021
32
2020
32
2019
32
2018
30
2017
29
2016
25
2015
26
2014
27
2013
30
2012
30
2011
34
2010
26
2009
26
2008
26
2007
25
2006
21
2005
22
2004
23
2003
24
2002
24
2001
30
2000
25
Source: MSHA quarterly employment and production, updated weekly.
Moore Quarry sits in Pocahontas County, Iowa, where the Census mining category is 0.6% 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.
Pocahontas County, Iowa · Population 7,040
0.6%
Mining share of county employment
$63,423
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 noticed a rock up in guard of jack shaft on surge bin. Employee noticed rock was barely on the cross member inside the guard. Employee hit back of guard to knock rock out. Rock went into coupler of jack shaft & sent rock into the guard. Guard caught employees hand & expanded metal went through employees glove & cut employees right hand.
2010 · 2 incidents
October 11, 2010IA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
Employee was bitten by a brown recluse spider on the top of the right hand. Employee originally did not report the incident and turned it in on his own insurance. When notified that it happened on company property, we turned it into worker's compensation and reported.
loaded truck on haul road ran into dozer causing truck to tip on driver side. Driver got out walk- ed arround for 15 min later complained of knee & abdomen pain went hospital. Treated for bruises. Was observed for 23 hrs. EE claims blacked out Dr put EE on restricted him from operating mach- inery and driving until tests are completed.
1999 · 1 incident
October 9, 1999IA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerPOWERED HAULAGE
EMPLOYEE WAS GUIDING A CONVEYOR BEING LOADED ONTO A FLATBED TRAILER. AS THE LOADER HANDLING THE CONVEYOR TILTED ITS BUCKET, THE CHAIN RIGGING SLIPPED CAUSING THE CONVEYOR HEAD PULLEY TO JUMP, PINCHING THE EMPLOYEE'S HAND BETWEEN THE HEAD PULLEY AND THE TRAILER HEAD RACK.
1997 · 1 incident
December 4, 1997IA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
EE WAS REMOVING STUCK FUEL CAP FROM TANK ON FUEL TRUCK, WHEN FROZEN CAP RELEASED, EE FELT A SNAP IN HIS LOWER BACK ON 12/4/97. ON 12/12/97 EE EXPERIENCED DISCOMFORT & NUMBNESS IN HIS LEFT LEG. ON 12/15/97 EE WENT TO DR & WAS DIAGNOSED WITH MUSCLE SPASMS THAT AFFECTED NERVES IN HIS LEFT LEG.
THE DRIVER AND TWO OCCUPANTS OF A 1973 INTERNATIONAL PICKUP WERE APPARENTLY HUNTING, TRESPASSES ONTO MINE PROPERTY, DROVE OVER A BERM AND OVER A FORTY FOOT HIGHWALL. DRIVER AND PASSENGER WERE KILLED. ONE PASSENGER SURVIVED.
THE DRIVER AND TWO OCCUPANTS OF A 1973 INTERNATIONAL PICKUP WERE APPARENTLY HUNTING, TRESPASSES ONTO MINE PROPERTLY, DROVE OVER A BERM AND OVER A FORTY FOOT HIGHWALL. DRIVER ADN PASSENGER WERE KILLED. ONE PASSENGER SURVIVED.
THE DRIVER AND TWO PASSENGERS OF A 1973 INTERNATIONAL PICKUP TRUCK WERE APPARENTLY HUNTING, TRESPASSES ONTO MINE PROPERTY, DROVE OVER A BERM AND OVER A FORTY FOOT HIGHWALL. DRIVER AND ONE PASS ENGER WERE KILLED. ONE PASSENGER SURVIVED.
October 21, 1996IA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorPOWERED HAULAGE
EE IS NOT SURE WHAT SPECIFIC JOB HE WAS DOING. EITHER RUNNING A LOADER OR LIFTING SAMPLE BAGS. ONE OR BOTH OF THESE JOBS COULD HAVE CAUSED HIM TO SUFFER A BACK STRAIN WHICH BECAME ACUTELY PAIN FUL THE FOLLOWING MORNING.
May 11, 1996IA · Metal/Non-Metalwelder (shop)MACHINERY
EMP WAS USING A CUTTING TORCH, CUTTING A PIECE OF IRON OFF AN I BEAM OVER HIS HEAD. A SPARK DROPPED INTO HIS RIGHT EAR BURNING A HOLE IN RIGHT EAR DRUM.
EMPLOYEE WAS POSITIONING A STEEL PLATE IN PREPARATION FOR WELDING. THE PLATE SHIFTED AND PINCHED HIS RING FINGER ON HIS LEFT HAND, CAUSING A PARTIAL AMPUTATION.
Related mines
Other mines operated by Martin Marietta Materials Inc.