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: 331 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Plant 5 has $5K in proposed MSHA penalties and $0 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.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
36 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2022-08-09.
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: 2026-06-24
0%
of limit-tested samples over the exposure limit
10
samples
3
limit-tested
Most sampled contaminants
Respirable dust, <.1mg5
Quartz, respirable, >1% Qtz3
Nuisance dust, total, <1% Qtz2
Show the individual readings (10)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-06-24
Respirable dust, <.1mg
0
Front-end Loader Operator
2025-06-24
Respirable dust, <.1mg
0
Crusher Oper/Worker
2021-04-20
Respirable dust, <.1mg
0
Crusher Oper/Worker
2019-04-24
Quartz, respirable, >1% Qtz
0.26
Crusher Oper/Worker
2019-04-24
Quartz, respirable, >1% Qtz
0.5
Front-end Loader Operator
2013-09-24
Nuisance dust, total, <1% Qtz
0.42
10
0.04
Front-end Loader Operator
2013-09-24
Nuisance dust, total, <1% Qtz
0.44
10
0.04
Crusher Oper/Worker
2007-05-23
Quartz, respirable, >1% Qtz
0.23
0.61
0.38
Crusher Oper/Worker
2007-05-23
Respirable dust, <.1mg
0
Front-end Loader Operator
2007-05-23
Respirable dust, <.1mg
0
Oiler, Greaser
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
8
2025
9
2024
4
2023
4
2022
16
2021
6
2020
3
2019
4
2018
3
2017
3
2016
4
2015
3
2014
3
2013
4
2012
6
2011
4
2010
2
2009
2
2008
4
2007
3
2006
3
2005
4
2004
3
2003
2
2002
2
2001
2
2000
2
Source: MSHA quarterly employment and production, updated weekly.
Plant 5 sits in St. Louis County, Minnesota, where the Census mining category is 2.3% 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.
St. Louis County, Minnesota · Population 200,056
2.3%
Mining share of county employment
$69,455
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
EE was driving a Cat D350E Series II Articulated Dump Truck and hit a bump that caused him to strike his rib cage on the right side arm rest causing contusions and fractured ribs on his right side.
2012 · 1 incident
October 2, 2012MN · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSTEPPING OR KNEELING ON OBJECT
June 21, 2011MN · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
Ulland Brothers Inc · Caught in, under or between a moving and a stationary object
Five stitches in left hand to close a wound caused by the miner' s hand being pinched between a suspended load (crusher basket) and an overhead conveyor.
EE WAS CUTTING OFF A BEARING USING A CUTTING TORCH. A PIECE OF SLAG FELL ON THE HOSES AND BURNED A HOLE. THE EE ATTEMPTED TO KNOCK THE SLAG OFF THE HOSES AND THEY FLASHED CAUSING A BURN TO HIS RT. HAND.
2002 · 1 incident
October 24, 2002MN · Metal/Non-Metalgreaser, grease man, oiler, lube man, dragline oilerHANDLING OF MATERIALS
Ulland Brothers Inc · Caught in, under or between (Not Elsewhere Classified)
EMPLOYEE ATTEMPTED TO DISLODGE A PIECE OF CONCRETE CAUGHT IN THE JAW OF THE CRUSHER. THE EE'S RIGHT HAND GOT PINCHED BETWEEN TWO PIECES OF CONCRETE.
WHILE USING A PRY BAR TO DISLODGE CLAY IN CRUSHEER, THE BAR SLIPPED AND "KICKED-BACK" FROM METAL SIDES OF CRUSHER, HITTING EMPLOYEE ON RIGHT CHEEK BONE.
1989 · 1 incident
September 16, 1989MN · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
Ulland Brothers Inc · Caught in, under or between (Not Elsewhere Classified)
EMPLOYEE HAD THE INDEX FINGER PINCHED BETWEEN A WHEEL DRUM AND THE AXLE ON A CONVEYOR WHEN THE CREW WAS SETTING UP THE CRUSHER.THIS RESULTED IN A LACERATION THAT REQUIRED SUTURES.THERE SHOULD BE NO COMPILCATIONS OR IMPAIRMENT OF FUNCTION FROM THIS INJURY.