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CARVER PIT: 64 MSHA citations Metal/Non-Metal

Hamburg, MN, Carver County, MN  ·  Active
MSHA Mine ID: 2100657

CARVER PIT has $7K 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
14
Years on record
1987–2025
Latest incident
Oct 2025
Compliance record
MSHA citations since 2001
64
citations
13
significant & substantial
$6,800
proposed penalties
$6,800
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Wm Mueller & Sons Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2001
34
inspections on record
506
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: 506 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘ A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2015-09-01.
On record since 2015.
Source: MSHA imminent-danger order records, updated weekly.

CARVER PIT has $7K 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
63 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-19.
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.
20.6%
significant & substantial
0.0%
high negligence or reckless
20.6%
reasonably likely or greater
49.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 49.2% low, 50.8% 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: 2025-06-03
0%
of limit-tested samples over the exposure limit
15
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg11
  • Quartz, respirable, >1% Qtz4
Show the individual readings (15)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-06-03 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-01-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-06-02 Quartz, respirable, >1% Qtz 0.23 Crusher Oper/Worker
2020-06-02 Quartz, respirable, >1% Qtz 0.17 Front-end Loader Operator
2016-06-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-06-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-06-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-06-14 Respirable dust, <.1mg 0 Crusher Oper/Worker
2010-11-09 Respirable dust, <.1mg 0 Truck Driver
2010-11-09 Respirable dust, <.1mg 0 Truck Driver
2009-11-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-11-04 Quartz, respirable, >1% Qtz 0.3 0.41 0.73 Front-end Loader Operator
2004-08-25 Respirable dust, <.1mg 0 Washer Operator
2004-08-25 Quartz, respirable, >1% Qtz 0.25 0.78 0.32 Washer Operator
2004-08-25 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.

CARVER PIT recorded 8.68 reportable injury cases per 100 full-time workers in 2024.

Injury rate, 2024
ⓘ This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
8.68
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.77 and the all-US-mining average was 2.08 cases per 100 workers.
In Minnesota, metal and nonmetal mining averaged 1.65 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2024 * 8.68 0.00 0.000
2000 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Wm Mueller & Sons Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 10
2024 10
2023 11
2022 16
2021 23
2020 15
2019 11
2018 8
2017 11
2016 20
2015 11
2014 6
2013 6
2012 6
2011 6
2010 7
2009 7
2008 7
2007 9
2006 9
2005 10
2004 10
2003 9
2002 11
2001 10
2000 12
Source: MSHA quarterly employment and production, updated weekly.

CARVER PIT sits in Carver 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.
Carver County, Minnesota · Population 108,622
0.1%
Mining share of county employment
$123,144
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 6,008 0 0 0.0
2026 Q1 1,735 1 0 576.4
2025 Q4 5,492 0 0 0.0
2025 Q3 6,520 0 0 0.0
2025 Q2 6,068 0 0 0.0
2025 Q1 1,902 0 0 0.0
2024 Q4 6,708 0 0 0.0
2024 Q3 6,733 1 1 148.5
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 6,602 0 0 0.0
2024 Q1 2,989 1 0 334.6
2023 Q4 4,889 0 0 0.0
2023 Q3 4,906 2 0 407.7
2023 Q2 7,305 0 0 0.0
2023 Q1 2,753 0 0 0.0
2022 Q4 4,891 1 0 204.5
2022 Q3 3,641 0 0 0.0
2022 Q2 5,172 0 0 0.0
2022 Q1 2,873 0 0 0.0
2021 Q4 4,697 2 1 425.8
2021 Q3 5,360 1 0 186.6
2021 Q2 3,503 0 0 0.0
2021 Q1 2,374 0 0 0.0
2020 Q4 2,079 0 0 0.0
2020 Q3 1,929 0 0 0.0
2020 Q2 2,182 1 0 458.3
2020 Q1 1,155 0 0 0.0
2019 Q4 2,500 0 0 0.0
2019 Q3 2,268 0 0 0.0
2019 Q2 1,551 5 1 3223.7
2019 Q1 2,207 0 0 0.0
2018 Q4 4,879 0 0 0.0
2018 Q3 1,270 0 0 0.0
2018 Q2 1,378 0 0 0.0
2018 Q1 2 0 0 0.0
2017 Q4 1,968 0 0 0.0
2017 Q3 2,053 0 0 0.0
2017 Q2 2,075 0 0 0.0
2017 Q1 1,261 0 0 0.0
2016 Q4 4,769 3 1 629.1
2016 Q3 3,497 0 0 0.0
2016 Q2 3,423 1 0 292.1
2016 Q1 2,046 0 0 0.0
2015 Q4 9,037 0 0 0.0
2015 Q3 4,363 4 1 916.8
2015 Q2 3,568 0 0 0.0
2015 Q1 1,213 0 0 0.0
2014 Q4 3,155 0 0 0.0
2014 Q3 3,244 3 0 924.8
2014 Q2 2,753 0 0 0.0
2014 Q1 1,117 0 0 0.0
2013 Q4 3,139 0 0 0.0
2013 Q3 3,438 0 0 0.0
2013 Q2 3,341 0 0 0.0
2013 Q1 1,315 0 0 0.0
2012 Q4 2,496 3 1 1201.9
2012 Q3 3,561 0 0 0.0
2012 Q2 2,914 0 0 0.0
2012 Q1 1,347 0 0 0.0
2011 Q4 3,454 2 0 579.0
2011 Q3 3,534 0 0 0.0
2011 Q2 2,866 0 0 0.0
2011 Q1 1,101 0 0 0.0
2010 Q4 3,054 4 1 1309.8
2010 Q3 4,614 0 0 0.0
2010 Q2 3,173 0 0 0.0
2010 Q1 1,146 0 0 0.0
2009 Q4 2,984 2 1 670.2
2009 Q3 4,592 0 0 0.0
2009 Q2 2,768 2 0 722.5
2009 Q1 1,073 0 0 0.0
2008 Q4 2,974 0 0 0.0
2008 Q3 5,454 0 0 0.0
2008 Q2 3,149 0 0 0.0
2008 Q1 1,399 0 0 0.0
2007 Q4 3,700 0 0 0.0
2007 Q3 5,294 0 0 0.0
2007 Q2 3,299 0 0 0.0
2007 Q1 1,976 0 0 0.0
2006 Q4 4,779 0 0 0.0
2006 Q3 5,510 3 0 544.5
2006 Q2 5,595 0 0 0.0
2006 Q1 2,141 0 0 0.0
2005 Q4 4,874 0 0 0.0
2005 Q3 5,768 0 0 0.0
2005 Q2 5,880 3 1 510.2
2005 Q1 2,644 0 0 0.0
2004 Q4 5,365 0 0 0.0
2004 Q3 5,271 6 1 1138.3
2004 Q2 3,940 0 0 0.0
2004 Q1 1,916 0 0 0.0
2003 Q4 4,926 0 0 0.0
2003 Q3 5,112 3 1 586.9
2003 Q2 4,829 0 0 0.0
2003 Q1 2,575 0 0 0.0
2002 Q4 3,956 0 0 0.0
2002 Q3 6,261 0 0 0.0
2002 Q2 5,618 0 0 0.0
2002 Q1 3,731 0 0 0.0
2001 Q4 4,682 0 0 0.0
2001 Q3 5,214 9 2 1726.1
2001 Q2 4,753 0 0 0.0
2001 Q1 2,404 0 0 0.0
2000 Q4 4,317 0 0 0.0
2000 Q3 6,401 0 0 0.0
2000 Q2 5,770 0 0 0.0
2000 Q1 3,546 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

14 on file

2025 · 2 incidents

October 13, 2025 MN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Wm Mueller & Sons Inc · Struck by falling object

Employee was working in the shop and helping replace a cutting edge on a loader bucket when the cutting edge dropped on to EE's foot.

June 20, 2025 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Wm Mueller & Sons Inc · Struck by... (Not Elsewhere Classified)

EE was cutting conveyor belting with a utility knife and was holding the belting with EE's left hand. EE accidentally sliced through EE's left thumb above the top joint with a utility knife.

2024 · 1 incident

February 6, 2024 MN · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Wm Mueller & Sons Inc · Contact with hot objects or substances

EE WAS TORCH WELDING ON A CRUSHER AND THE WELDER SPRAYED BACK AT EE.

2023 · 1 incident

April 26, 2023 MN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Wm Mueller & Sons Inc · Struck by flying object

Truck driver was removing a lug nut on EE's dump truck with an impact drill. The socket broke and a piece hit EE in the eye or near the eye.

2022 · 1 incident

June 16, 2022 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Wm Mueller & Sons Inc · Over-exertion in pulling or pushing objects

bending over a bar on the wash plant wrenching. Felt a pop in the right side of EE's ribs and could hardly breath

2008 · 1 incident

October 28, 2008 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Wm Mueller & Sons Inc · Struck by... (Not Elsewhere Classified)

Pulling piece of iron out of crusher. The iron flipped and cut between fingers of left hand - needed stitches.

1995 · 2 incidents

May 5, 1995 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Wm Mueller & Sons Inc · Fall from machine

WHILE GETTING OUT OF LOADER, SLIPPED AND FELL OUT AND BROKE HUMERUS OF LEFT ARM.

March 14, 1995 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Wm Mueller & Sons Inc · Over-exertion (Not Elsewhere Classified)

STEPPING OFF EQUIPMENT STEPPED INTO MUD PUDDLE AND TWISTE LEG. POSSIBLE CRACKED BONE.

1994 · 1 incident

April 20, 1994 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Wm Mueller & Sons Inc · Fall from machine

AUGER ON TOP OF WASH PLANT JAMMED. HE WENT ON TOP TO FIX, SLIPPED OFF AND FELL TO THE GROUND BROKE 2 VERTEBRAE AND CRUSHED A DISC.

1991 · 1 incident

October 3, 1991 MN · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Wm Mueller & Sons Inc · Fall from machine

WAS ON TOP OF CONVEYOR FIXING IT SLIPPED AND FELL TO THE GROUND. LANDED ON SMALL OF HIS BACK.

1990 · 1 incident

December 11, 1990 MN · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Wm Mueller & Sons Inc · Fall down stairs

INJURED WAS CROSSING DOWN STEPS ON CRUSHER SLIPPED OFF LANDED WITH LEFT BUTTOCKS ON STANDING CROW BAR.NEEDED SURGERY TO REPAIR 8" TEAR ON BUTTOCKS.

1987 · 3 incidents

December 10, 1987 MN · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Wm Mueller & Sons Inc · Struck against stationary object

ROLLERS WERE FROZEN ON THE CONVEYOR. HE CAUGHT HIS SLEEVE ON ROLLER. IT PULLED ARM IN CUTTING AND TEARING HIS RIGHT ARM.

May 1, 1987 MN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Wm Mueller & Sons Inc · Over-exertion in pulling or pushing objects

HE WAS CLOSING THE TAILGATE ON HIS TRUCK, PULLED THE LEVER AND STAINED HIS BACK.