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Henderson Pit 096: 1 recorded fatality Metal/Non-Metal

Henderson, Sibley County, MN  ·  Active
MSHA Mine ID: 2103557

Henderson Pit 096 has $15K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
5
Years on record
2006–2018
Latest incident
Oct 2018
Compliance record
MSHA citations since 2006
56
citations
7
significant & substantial
$15,274
proposed penalties
$15,274
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Cemstone Products Co's full MSHA compliance history →
Inspection activity
MSHA inspections since 2006
25
inspections on record
504
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: 504 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Henderson Pit 096 has $15K 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.
$15K
proposed penalties
$15K
current assessed
$15K
paid to date
$0
outstanding
54 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-02-11.
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.
13.0%
significant & substantial
1.9%
high negligence or reckless
13.0%
reasonably likely or greater
50.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 27.8% low, 70.4% moderate, 1.9% high, 0.0% reckless.
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: 2024-11-08
0%
of limit-tested samples over the exposure limit
9
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg6
  • Quartz, respirable, >1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (9)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-11-08 Respirable dust, <.1mg 0 Washer Operator
2024-11-08 Respirable dust, <.1mg 0 Dredge/Barge Operator
2024-11-08 Respirable dust, <.1mg 0 Dredge/Barge Operator
2019-08-07 Unlisted Particulate, respirable, <1% Qtz 0.13 Front-end Loader Operator
2019-08-07 Respirable dust, <.1mg 0 Supervisor, Co. Official
2019-08-07 Respirable dust, <.1mg 0 Dredge/Barge Operator
2009-07-29 Quartz, respirable, >1% Qtz 0.31 2.13 0.15 Crusher Oper/Worker
2009-07-29 Quartz, respirable, >1% Qtz 0.14 0.94 0.15 Crusher Oper/Worker
2009-07-29 Respirable dust, <.1mg 0 Dredge/Barge Operator
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.
Ownership history
  1. Cemstone Products Co 2006 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 7
2024 8
2023 7
2022 8
2021 8
2020 10
2019 8
2018 9
2017 9
2016 9
2015 9
2014 8
2013 7
2012 8
2011 7
2010 6
2009 6
2008 5
2007 6
2006 3
Source: MSHA quarterly employment and production, updated weekly.

Henderson Pit 096 sits in Sibley 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.
Sibley County, Minnesota · Population 14,933
0.1%
Mining share of county employment
$76,082
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
Quarter Hours worked Citations S&S Per 1M hrs
2026 Q2 4,493 0 0 0.0
2026 Q1 2,606 1 0 383.7
2025 Q4 3,452 0 0 0.0
2025 Q3 4,616 2 0 433.3
2025 Q2 2,618 0 0 0.0
2025 Q1 1,215 0 0 0.0
2024 Q4 3,424 8 2 2336.4
2024 Q3 4,395 2 0 455.1
Show 70 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,146 0 0 0.0
2024 Q1 2,800 0 0 0.0
2023 Q4 3,594 0 0 0.0
2023 Q3 4,412 0 0 0.0
2023 Q2 4,152 0 0 0.0
2023 Q1 1,094 0 0 0.0
2022 Q4 3,463 0 0 0.0
2022 Q3 4,685 0 0 0.0
2022 Q2 4,355 2 0 459.2
2022 Q1 568 0 0 0.0
2021 Q4 3,156 0 0 0.0
2021 Q3 4,227 0 0 0.0
2021 Q2 4,275 0 0 0.0
2021 Q1 460 0 0 0.0
2020 Q4 3,179 0 0 0.0
2020 Q3 3,779 1 0 264.6
2020 Q2 5,693 0 0 0.0
2020 Q1 1,974 0 0 0.0
2019 Q4 2,873 0 0 0.0
2019 Q3 4,250 3 0 705.9
2019 Q2 3,370 0 0 0.0
2019 Q1 925 0 0 0.0
2018 Q4 2,937 0 0 0.0
2018 Q3 4,705 1 0 212.5
2018 Q2 4,857 0 0 0.0
2018 Q1 2,757 0 0 0.0
2017 Q4 3,419 0 0 0.0
2017 Q3 4,887 0 0 0.0
2017 Q2 5,259 0 0 0.0
2017 Q1 2,417 0 0 0.0
2016 Q4 3,591 3 0 835.4
2016 Q3 5,119 0 0 0.0
2016 Q2 4,617 1 0 216.6
2016 Q1 1,794 0 0 0.0
2015 Q4 3,678 0 0 0.0
2015 Q3 4,454 2 0 449.0
2015 Q2 1,225 0 0 0.0
2015 Q1 952 0 0 0.0
2014 Q4 3,347 0 0 0.0
2014 Q3 4,038 0 0 0.0
2014 Q2 4,243 5 1 1178.4
2014 Q1 1,138 0 0 0.0
2013 Q4 2,383 0 0 0.0
2013 Q3 4,023 0 0 0.0
2013 Q2 3,054 0 0 0.0
2013 Q1 923 0 0 0.0
2012 Q4 2,939 0 0 0.0
2012 Q3 4,121 0 0 0.0
2012 Q2 3,688 0 0 0.0
2012 Q1 1,291 0 0 0.0
2011 Q4 2,622 1 0 381.4
2011 Q3 3,700 4 0 1081.1
2011 Q2 2,818 0 0 0.0
2011 Q1 844 0 0 0.0
2010 Q4 2,737 0 0 0.0
2010 Q3 3,443 0 0 0.0
2010 Q2 2,593 0 0 0.0
2010 Q1 1,658 0 0 0.0
2009 Q4 2,782 1 0 359.5
2009 Q3 3,933 3 2 762.8
2009 Q2 2,515 0 0 0.0
2009 Q1 642 0 0 0.0
2008 Q4 1,287 0 0 0.0
2008 Q3 3,186 0 0 0.0
2008 Q2 2,581 0 0 0.0
2007 Q4 3,141 0 0 0.0
2007 Q3 3,474 0 0 0.0
2007 Q2 2,950 5 0 1694.9
2007 Q1 1,017 0 0 0.0
2006 Q4 1,627 4 0 2458.5

Fatalities at this mine

1 recorded
October 4, 2006 MN · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger Fatality · FALLING/SLIDING/ROLLING MATERIALS
Cemstone Products Co · Caught in, under or between a moving and a stationary object

Worker was preparing to remove a transmission from a machine. The operator's cab had to be removed prior to removal of transmission. Some or all of the fastners holding the cab were removed. Cab tipped pinning worker between cab, lower deck and hand rail.

Reportable incidents

4 on file (excluding fatalities above)

2018 · 1 incident

October 17, 2018 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Cemstone Products Co · Struck by... (Not Elsewhere Classified)

Put hand on side of conveyor to adjust stance, pulley slid and smashed fingers.

2016 · 1 incident

November 18, 2016 MN · Metal/Non-Metal miner, prospector, nec OTHER
Cemstone Products Co · Caught in, under or between a moving and a stationary object

Wedged between bin and wall.

2008 · 1 incident

May 19, 2008 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Cemstone Products Co · Fall onto or against objects

Greasing the gates on hopper, slipped and fell against spray bars - bruised ribs.

2007 · 1 incident

August 15, 2007 MN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Cemstone Products Co · Fall from ladders

Turning to go down ladder, slipped or tripped and fell to ground. Broke ankle.