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: 513 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Grigsby East Pit has $12K 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.
$12K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
80 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-04-16.
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: 2024-05-30
12
samples
0
limit-tested
Most sampled contaminants
Respirable dust, <.1mg11
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (12)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-05-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-05-30
Respirable dust, <.1mg
0
Dredge/Barge Operator
2023-09-26
Respirable dust, <.1mg
0
Dredge/Barge Operator
2023-09-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2022-08-03
Respirable dust, <.1mg
0
Front-end Loader Operator
2022-08-03
Respirable dust, <.1mg
0
Utility Man
2022-08-03
Respirable dust, <.1mg
0
Dredge/Barge Operator
2020-09-23
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-09-25
Respirable dust, <.1mg
0
Dredge/Barge Operator
2018-09-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2004-06-23
Unlisted Particulate, respirable, <1% Qtz
0.54
Dredge/Barge Operator
2004-06-23
Respirable dust, <.1mg
0
Front-end Loader Operator
Area samples (mill and shop air)
Last sampled: 2015-04-01, 11 years ago
1
samples
Show the individual readings (1)
Date
Contaminant
Concentration
Limit
Conc / limit
Area sampled
2015-04-01
Respirable dust, <.1mg
0
SF ORE TRANSFER
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
7
2025
7
2024
7
2023
6
2022
7
2021
6
2020
6
2019
6
2018
6
2017
5
2016
4
2015
3
2014
3
2013
3
2012
3
2011
3
2010
2
2009
3
2008
3
2007
3
2006
2
2005
2
2004
2
2003
2
2002
3
2001
8
2000
8
Source: MSHA quarterly employment and production, updated weekly.
Grigsby East Pit sits in Merrick County, Nebraska, where the Census mining category is 0.0% 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.
Merrick County, Nebraska · Population 7,696
0.0%
Mining share of county employment
$62,849
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
A small piece of metal left over from cutting a pipe with a bandsaw was left deposited on my sweatshirt. When I took off the shirt, a piece of metal got in my eye. An eye doctor removed the piece on 5/1/2021 and I am back to normal.
2020 · 1 incident
August 14, 2020NE · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
Installing a heavy drive shaft on dredge. Employee set drive shaft down to reposition employee's body and the U-joint pivoted and pinched the tip of employee's finger. Fracture to the tip of left hand ring finger and contusion under fingernail.
2008 · 1 incident
August 5, 2008NE · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
EMPLOYEE WAS OPERATING THE DREDGE WHEN HE START-ED FEELING CHEST PAINS. HE WENT TO THE HOSPITAL TO BE LOOKED AT AND THEY SENT HIM TO OMAHA BY AMBULANCE WHERE HE DID END UP HAVING A HEART ATTACK.
July 31, 2001NE · Metal/Non-Metalminer, necDISORDERS (PHYSICAL AGENTS)
EE WAS OPENING A BARREL OF OIL HE WAS USING A SCREWDRIVER TO LIFT THE LID, THE SCREWDRIVER SLIPPED & EE CUT HIS HAND ON THE BANDING THAT GOES AROUND THE LID
EE WAS WIRING UP A SHIELD ONTO THE DEWATERING SCREW & SLIPPED OFF THE AREA HE WAS SITTING ON & HIT HIS BACK ON THE ROTARY SCREEN ON HIS WAY DOWN TO THE GROUND
1994 · 1 incident
July 20, 1994NE · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)