Niagara Stone has $3K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
4
Years on record
2022–2023
Latest incident
Apr 2023
Compliance record
MSHA citations since 2015
15
citations
5
significant & substantial
$2,816
proposed penalties
$2,816
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
25
inspections on record
371
inspection hours
n/a
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: 371 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Niagara Stone has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
14 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2025 Q4
5,843
1
0
171.1
2025 Q3
7,698
0
0
0.0
2025 Q2
7,597
0
0
0.0
2025 Q1
8,133
1
0
123.0
2024 Q4
8,135
0
0
0.0
2024 Q3
7,193
0
0
0.0
2024 Q2
5,497
2
1
363.8
2024 Q1
5,114
1
1
195.5
Show 35 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
4,931
0
0
0.0
2023 Q3
4,979
1
0
200.8
2023 Q2
4,261
0
0
0.0
2023 Q1
4,489
0
0
0.0
2022 Q4
4,897
0
0
0.0
2022 Q3
6,103
0
0
0.0
2022 Q2
4,611
0
0
0.0
2022 Q1
4,386
0
0
0.0
2021 Q4
2,323
0
0
0.0
2021 Q3
2,737
0
0
0.0
2021 Q2
4,038
0
0
0.0
2021 Q1
3,274
4
2
1221.7
2020 Q4
4,710
0
0
0.0
2020 Q3
1,419
0
0
0.0
2020 Q2
1,609
0
0
0.0
2020 Q1
1,374
0
0
0.0
2019 Q4
2,310
1
0
432.9
2019 Q3
5,225
0
0
0.0
2019 Q2
8,241
0
0
0.0
2019 Q1
4,531
0
0
0.0
2018 Q4
4,772
0
0
0.0
2018 Q3
7,156
0
0
0.0
2018 Q2
4,237
0
0
0.0
2018 Q1
2,902
0
0
0.0
2017 Q4
3,237
0
0
0.0
2017 Q3
3,559
0
0
0.0
2017 Q2
3,444
0
0
0.0
2017 Q1
2,071
1
1
482.9
2016 Q4
3,199
0
0
0.0
2016 Q3
3,665
0
0
0.0
2016 Q2
3,395
0
0
0.0
2016 Q1
2,276
0
0
0.0
2015 Q4
3,339
0
0
0.0
2015 Q3
3,239
0
0
0.0
2015 Q2
2,346
1
0
426.3
No fatalities recorded at this mine.
Reportable incidents
4 on file
2023 · 1 incident
April 12, 2023WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanPOWERED HAULAGE
Miner was picking up a piece of stone from a conveyor belt when a large piece of stone fell onto miner's right hand.
June 29, 2022WI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Eden Stone Co., LLC · Caught in, under or between a moving and a stationary object
Miner picked up a piece of stone from the conveyor belt of a stone splitting machine. EE turned to place the stone on a steel table and smashed EE's finger between the table and the stone.
March 10, 2022WI · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerPOWERED HAULAGE
The miner was driving a loader with the bucket very close to the ground. The bucket hit a stone and stopped abruptly. Although EE was wearing seatbelt, EE's upper body lurched forward and EE's head struck a switch on the ROPS pillar. EE was cut above right eye and required stitches.
For insurers, brokers, and safety consultants
The full compliance file on Niagara Stone
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and
docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF
with the underlying data as CSV.