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: 186 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Portable Screener has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
19 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2017-05-10.
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: 2015-06-04, 11 years ago
100%
of limit-tested samples over the exposure limit
4
samples
1
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz11 over
Unlisted Particulate, total, <1% Qtz2
Respirable dust, <.1mg1
Show the individual readings (4)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2002-07-23
Quartz, respirable, >1% Qtz
1.36
1.23
1.11
Front-end Loader Operator
2015-06-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2002-07-23
Unlisted Particulate, total, <1% Qtz
0.59
Front-end Loader Operator
2002-07-23
Unlisted Particulate, total, <1% Qtz
0
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2022
2
2021
2
2020
2
2019
3
2018
3
2017
2
2016
3
2015
2
2007
3
2006
4
2005
3
2004
4
2003
7
2002
5
2001
4
2000
3
Source: MSHA quarterly employment and production, updated weekly.
Portable Screener sits in Brown County, Minnesota, 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.
Brown County, Minnesota · Population 25,826
0.1%
Mining share of county employment
$68,690
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 CLEANING OUT GRAVEL & ROCK FROM A PLUGGED GRAVEL CONVEYOR. WHEN HE STEPPED THE GRAVEL SLOPE NEXT TO THE CONVEYOR HE STEPPED ON A THICK PIECE OF CONCRETE REINFORCING WIRE WHICH PENETRATE D HIS SHOE AND PUNCTURED HIS LEFT FOOT.
2002 · 1 incident
January 10, 2002MN · Metal/Non-Metalmine manager, mine foreman, mine ownerMACHINERY
EE WAS OPERATING A TRACTOR BACKHOE W/HAMMER TO BREAK FROST IN GRAVEL PIT SO EXCAVATOR COULD LOAD GRAVEL. HE DROVE BACKHOE WITHIN 20 FT OF BANK IN PIT. HE STOPPED BACKHOE AND TURNED IN HIS SEAT TO OPERATE THE CONTROLS FOR THE HAMMER. THE BACKHOE STARTED TO MOVE TOWARD THE EDGE OF THE DROPOFF. BY THE TIME HE GOT TURNED AROUND TO TRY TO STOP, THE BACK HOE WENT OVER THE EDGE AND THE EE
1994 · 1 incident
July 15, 1994MN · Metal/Non-Metaloutside foreman, leadmanMACHINERY
EMPLOYEE WAS WELDING ON A STACKING CONVEYOR HE LIFTED THE HELMET TO GO TO TURN UP THE WELDER & WALKED INTO A PIECE OF ANGLE IRON & RECEIVED A CUT ABOVE HIS RT EYE THAT REQUIRED STITCHES
1993 · 1 incident
September 27, 1993MN · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
EMPLOYEE WAS GREASING A FRONT END LOADER IN THE PIT AS HE WAS GREASING THE LOADER HE HAD TO REACH OVER ONE OF THE TIRES TO GREASE & HE FELT SOMETHING POP IN HIS LOWER BACK ON 09-17-93 THE EMPL OYEE WAS LIFTING CONCRETE CHUNKS INTO A LOADER BUCKET ON A STREET PROJECT IN NEW ULM & HURT HIS BACK HIS BACK FELT BETTER IN A COUPLE DAYS & HE NEVER WENT TO A DOC FOR THIS INJURY
1992 · 2 incidents
October 30, 1992MN · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
SETTING UP PORTABLE GRAVEL CRUSHING PLANT IN OUR PIT PLACING WOOD BLOCKING UNDER THE PLANT LIFTING AND PLACING WOOD BLOCKING UNDER THE PLANT STRAINED HIS LOWER BACK
Related mines
Other mines operated by M.R. Paving & Excavating, Inc.