Mining Incidents
Search Operators Mines Alerts Research Controllers Fatalgrams About
Countries
Peru Chile
English Español
← Back to search

Colony Pit: 35 MSHA citations Metal/Non-Metal

Stelter Inc. · Surface
Controlled by Jack T Stelter
Bloomer, Chippewa County, WI  ·  Intermittent
MSHA Mine ID: 4702601

Colony Pit has $4K in proposed MSHA penalties and $453 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Colony Pit.

Fatalities
0
Total incidents
3
Years on record
1988–2001
Latest incident
Apr 2001
Compliance record
MSHA citations since 2001
35
citations
3
significant & substantial
$3,705
proposed penalties
$3,252
paid to date
88% of proposed penalties paid to date, a $453 gap.
Source: MSHA violations data, updated weekly.
See Stelter Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2001
41
inspections on record
376
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: 376 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Colony Pit has $4K in proposed MSHA penalties and $453 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.
$4K
proposed penalties
$4K
current assessed
$3K
paid to date
$453
outstanding
35 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-18.
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.
8.6%
significant & substantial
0.0%
high negligence or reckless
8.6%
reasonably likely or greater
28.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 37.1% low, 62.9% moderate, 0.0% 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: 2023-10-11
0%
of limit-tested samples over the exposure limit
15
samples
7
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz6
  • Respirable dust, <.1mg6
  • Nuisance dust, respirable, <1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (15)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-10-11 Nuisance dust, respirable, <1% Qtz 0.42 10 0.04 Front-end Loader Operator
2022-05-03 Nuisance dust, respirable, <1% Qtz 0.34 10 0.03 Front-end Loader Operator
2018-11-14 Quartz, respirable, >1% Qtz 0.19 Front-end Loader Operator
2018-11-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-06-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-06-07 Respirable dust, <.1mg 0 Backhoe Operator
2011-06-07 Quartz, respirable, >1% Qtz 0.21 1.13 0.19 Front-end Loader Operator
2007-06-14 Quartz, respirable, >1% Qtz 0.3 0.73 0.41 Backhoe Operator
2007-06-14 Quartz, respirable, >1% Qtz 0.16 1.05 0.15 Crusher Oper/Worker
2004-11-17 Quartz, respirable, >1% Qtz 0.28 0.88 0.32 Supervisor, Co. Official
2004-11-17 Quartz, respirable, >1% Qtz 0.41 1.55 0.26 Crusher Oper/Worker
2003-11-18 Unlisted Particulate, respirable, <1% Qtz 0.13 Crusher Oper/Worker
2003-11-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-11-18 Respirable dust, <.1mg 0 Supervisor, Co. Official
2003-11-18 Respirable dust, <.1mg 0 Front-end Loader 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. Stelter Inc. 1979 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 3
2024 2
2023 2
2022 3
2021 3
2020 3
2019 3
2018 3
2017 2
2016 2
2015 3
2014 2
2013 3
2012 4
2011 3
2010 3
2009 3
2008 3
2007 2
2006 2
2005 2
2004 3
2003 2
2002 2
2001 2
2000 3
Source: MSHA quarterly employment and production, updated weekly.

Colony Pit sits in Chippewa County, Wisconsin, where the Census mining category is 0.3% 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.
Chippewa County, Wisconsin · Population 66,558
0.3%
Mining share of county employment
$74,009
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 865 3 0 3468.2
2026 Q1 0 0 0
2025 Q4 421 0 0 0.0
2025 Q3 683 0 0 0.0
2025 Q2 866 0 0 0.0
2025 Q1 33 0 0 0.0
2024 Q4 322 1 0 3105.6
2024 Q3 751 0 0 0.0
Show 94 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 826 0 0 0.0
2024 Q1 0 0 0
2023 Q4 624 0 0 0.0
2023 Q3 563 0 0 0.0
2023 Q2 1,453 0 0 0.0
2023 Q1 0 0 0
2022 Q4 431 0 0 0.0
2022 Q3 1,863 0 0 0.0
2022 Q2 1,585 3 0 1892.7
2022 Q1 1 0 0 0.0
2021 Q4 1,305 0 0 0.0
2021 Q3 1,053 1 0 949.7
2021 Q2 784 0 0 0.0
2021 Q1 33 0 0 0.0
2020 Q4 1,224 0 0 0.0
2020 Q3 1,106 0 0 0.0
2020 Q2 666 2 0 3003.0
2020 Q1 185 0 0 0.0
2019 Q4 269 0 0 0.0
2019 Q3 649 0 0 0.0
2019 Q2 505 0 0 0.0
2019 Q1 1 0 0 0.0
2018 Q4 413 1 0 2421.3
2018 Q3 1,063 0 0 0.0
2018 Q2 1,121 0 0 0.0
2018 Q1 1 0 0 0.0
2017 Q4 1 0 0 0.0
2017 Q3 946 0 0 0.0
2017 Q2 965 4 1 4145.1
2016 Q4 83 0 0 0.0
2016 Q3 1,115 0 0 0.0
2016 Q1 1 0 0 0.0
2015 Q4 626 2 1 3194.9
2015 Q3 757 3 1 3963.0
2015 Q2 1,121 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 249 0 0 0.0
2014 Q3 548 0 0 0.0
2014 Q2 517 1 0 1934.2
2014 Q1 0 0 0
2013 Q4 356 2 0 5618.0
2013 Q3 824 0 0 0.0
2013 Q2 453 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 313 3 0 9584.7
2012 Q3 749 0 0 0.0
2012 Q2 474 0 0 0.0
2012 Q1 528 0 0 0.0
2011 Q4 296 1 0 3378.4
2011 Q3 724 0 0 0.0
2011 Q1 0 0 0
2010 Q4 331 0 0 0.0
2010 Q3 673 0 0 0.0
2010 Q2 180 0 0 0.0
2010 Q1 3 1 0 333333.3
2009 Q4 300 0 0 0.0
2009 Q3 876 0 0 0.0
2009 Q2 322 0 0 0.0
2009 Q1 53 0 0 0.0
2008 Q4 339 0 0 0.0
2008 Q3 912 0 0 0.0
2008 Q2 289 0 0 0.0
2008 Q1 0 0 0
2007 Q4 619 0 0 0.0
2007 Q3 860 0 0 0.0
2007 Q2 177 1 0 5649.7
2007 Q1 0 0 0
2006 Q4 625 0 0 0.0
2006 Q3 860 0 0 0.0
2006 Q2 246 0 0 0.0
2006 Q1 0 0 0
2005 Q4 922 0 0 0.0
2005 Q3 915 0 0 0.0
2005 Q2 227 0 0 0.0
2005 Q1 0 0 0
2004 Q4 827 1 0 1209.2
2004 Q3 873 0 0 0.0
2004 Q2 767 0 0 0.0
2004 Q1 0 0 0
2003 Q4 827 0 0 0.0
2003 Q3 1,037 0 0 0.0
2003 Q2 737 2 0 2713.7
2003 Q1 0 0 0
2002 Q3 977 0 0 0.0
2002 Q2 697 0 0 0.0
2002 Q1 0 0 0
2001 Q4 820 1 0 1219.5
2001 Q3 987 0 0 0.0
2001 Q2 684 2 0 2924.0
2001 Q1 0 0 0
2000 Q4 785 0 0 0.0
2000 Q3 889 0 0 0.0
2000 Q2 718 0 0 0.0
2000 Q1 280 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2001 · 1 incident

April 18, 2001 WI · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Stelter Inc. · Caught in, under or between (Not Elsewhere Classified)

EE WAS CLEANING THE CONE OUT WITH A LONG BAR WHEN THE BAR WAS GRABBED BY THE CONE. THE BAR THEN PINCHED HIS HANDS BETWEEN THE BAR & THE CAGE AROUND THE CONE. HE CUT HIS LEFT MIDDLE FINGER AND BROKE HIS RIGHT POINTER FINGER FIRST KNUCKLE ANDALSO CUT IT.

1997 · 1 incident

June 3, 1997 WI · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Stelter Inc. · Caught in, under or between running or meshing objects

HE WAS GREASING GEARS IN A 95 NW CRANE WHILE THE GEARS WERE TURNING. THE GEARS CAUGHT THE GREASE TUBE AND GLOVE AND PULLED HIS RIGHT ARM IN. TWO OTHER EMPLOYEES THERE TURNED OFF THE CRANE AND BLOCKED THE GEARS FROM FURTHER MOTION. ONE RADIOED FOR HELP AND APPLIED TOURNIQUET TO UPPER ARM. RIGHT ARM AND FOREARM WERE CRUSHED AND COULD NOT BE SAVED. AIR LIFTED TO RAMSEY MEDICAL CENTER

1988 · 1 incident

July 21, 1988 WI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Stelter Inc. · Fall from machine

STEPPED OFF LADDER AT CRUSHER TURNED ANKLE AND KNEE.