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

Plant #45: 35 MSHA citations Metal/Non-Metal

Plain, Sauk County, WI  ·  Active
MSHA Mine ID: 4702874

Plant #45 has $6K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Plant #45.

Fatalities
0
Total incidents
25
Years on record
1990–2025
Latest incident
Oct 2025
Compliance record
MSHA citations since 2001
35
citations
5
significant & substantial
$5,980
proposed penalties
$5,980
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Milestone Materials Div/Mathy Construction Co's full MSHA compliance history →
Inspection activity
MSHA inspections since 2001
45
inspections on record
672
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: 672 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Plant #45 has $6K in proposed MSHA penalties and $0 outstanding across 2 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.
$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
34 assessments are final orders; 2 contested dockets.
Of $2K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2019-07-01.
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.
14.7%
significant & substantial
11.8%
high negligence or reckless
17.6%
reasonably likely or greater
52.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 50.0% low, 38.2% moderate, 11.8% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
ⓘ Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
4 citations taken to the federal commission · 11% of citations on record
  • Settled 1 · 25%
  • Vacated or withdrawn 3 · 75%
0%
S&S designation survived the contest
ⓘ Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 3 decided S&S contests · industry: 79%
58%
Penalty reduction in decided contests
$6K proposed, $2K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2024-07-01.
Contested penalties
ⓘ A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
LAKE 2010-82M Settlement 2011 $2K → $2K
LAKE 2024-0230 Withdrawal McCarthy 2025 $147 → $0
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2025-10-27
50%
of limit-tested samples over the exposure limit
33
samples
12
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz126 over
  • Respirable dust, <.1mg20
  • Unlisted Particulate, total, <1% Qtz1
Show the individual readings (33)
Date Contaminant Concentration Limit Conc / limit Occupation
2022-11-22 Quartz, respirable, >1% Qtz 0.29 0.29 1.00 Utility Man
2019-06-06 Quartz, respirable, >1% Qtz 0.29 0.19 1.53 Laborer, Bullgang
2019-06-06 Quartz, respirable, >1% Qtz 1.42 0.24 5.92 Laborer, Bullgang
2019-06-06 Quartz, respirable, >1% Qtz 0.34 0.15 2.27 Laborer, Bullgang
2007-10-24 Quartz, respirable, >1% Qtz 0.25 0.19 1.32 Dry Screen Plant Operator
2006-11-15 Quartz, respirable, >1% Qtz 0.25 0.17 1.47 Cleanup Man
2025-10-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-10-27 Respirable dust, <.1mg 0 Crusher Oper/Worker
2025-10-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-09-17 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-09-17 Respirable dust, <.1mg 0 Truck Driver
2023-03-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-03-28 Quartz, respirable, >1% Qtz 0.15 0.16 0.94 Cleanup Man
2023-03-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-11-22 Quartz, respirable, >1% Qtz 0.24 0.44 0.55 Front-end Loader Operator
2022-11-22 Quartz, respirable, >1% Qtz 0.14 0.35 0.40 Front-end Loader Operator
2019-10-30 Respirable dust, <.1mg 0 Utility Man
2019-10-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-10-30 Respirable dust, <.1mg 0 Cleanup Man
2012-12-18 Quartz, respirable, >1% Qtz 0.18 0.85 0.21 Crusher Oper/Worker
2012-12-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-12-18 Quartz, respirable, >1% Qtz 0.17 0.73 0.23 Supervisor, Co. Official
2007-10-24 Quartz, respirable, >1% Qtz 0.17 0.29 0.59 Front-end Loader Operator
2007-10-24 Respirable dust, <.1mg 0 Truck Driver
2007-10-24 Respirable dust, <.1mg 0 Backhoe Operator
2006-11-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-11-15 Unlisted Particulate, total, <1% Qtz 8.16 Cleanup Man
2004-04-21 Respirable dust, <.1mg 0 Cleanup Man
2004-04-21 Respirable dust, <.1mg 0 Laborer, Bullgang
2004-04-21 Respirable dust, <.1mg 0 Crusher Oper/Worker
2001-04-19 Respirable dust, <.1mg 0 Front-end Loader Operator
2001-04-19 Respirable dust, <.1mg 0 Crusher Oper/Worker
2001-04-19 Respirable dust, <.1mg 0 Supervisor, Co. Official
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. Edward Kraemer & Sons Inc 1988 to 1998
  2. The Kraemer Company LLC 1998 to 2020
  3. Milestone Materials Div/Mathy Construction Co 2020 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 4
2023 5
2022 6
2021 5
2020 3
2019 3
2018 4
2017 4
2016 3
2015 4
2014 4
2013 3
2012 4
2011 5
2010 4
2009 4
2008 4
2007 4
2006 4
2005 5
2004 4
2003 5
2002 5
2001 4
2000 4
Source: MSHA quarterly employment and production, updated weekly.

Plant #45 sits in Sauk 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.
Sauk County, Wisconsin · Population 65,759
0.3%
Mining share of county employment
$77,648
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 3,990 0 0 0.0
2026 Q1 1,862 0 0 0.0
2025 Q4 2,035 0 0 0.0
2025 Q3 4,435 0 0 0.0
2025 Q2 3,861 0 0 0.0
2025 Q1 2,076 0 0 0.0
2024 Q4 2,865 0 0 0.0
2024 Q3 3,232 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,468 0 0 0.0
2024 Q1 1,223 0 0 0.0
2023 Q4 2,438 0 0 0.0
2023 Q3 3,444 0 0 0.0
2023 Q2 4,333 0 0 0.0
2023 Q1 3,541 0 0 0.0
2022 Q4 4,054 0 0 0.0
2022 Q3 5,865 0 0 0.0
2022 Q2 5,895 0 0 0.0
2022 Q1 2,989 0 0 0.0
2021 Q4 3,778 0 0 0.0
2021 Q3 4,218 0 0 0.0
2021 Q2 4,704 0 0 0.0
2021 Q1 2,620 0 0 0.0
2020 Q4 2,216 0 0 0.0
2020 Q3 2,541 0 0 0.0
2020 Q2 2,512 0 0 0.0
2020 Q1 1,902 0 0 0.0
2019 Q4 2,273 0 0 0.0
2019 Q3 3,046 3 0 984.9
2019 Q2 2,304 1 0 434.0
2019 Q1 2,027 3 1 1480.0
2018 Q4 3,015 0 0 0.0
2018 Q3 3,162 1 0 316.3
2018 Q2 3,317 0 0 0.0
2018 Q1 2,108 0 0 0.0
2017 Q4 1,859 0 0 0.0
2017 Q3 4,280 0 0 0.0
2017 Q2 3,703 2 1 540.1
2017 Q1 1,446 0 0 0.0
2016 Q4 2,149 0 0 0.0
2016 Q3 3,081 0 0 0.0
2016 Q2 2,394 0 0 0.0
2016 Q1 1,577 0 0 0.0
2015 Q4 2,172 0 0 0.0
2015 Q3 2,626 0 0 0.0
2015 Q2 2,574 1 0 388.5
2015 Q1 1,694 0 0 0.0
2014 Q4 2,295 0 0 0.0
2014 Q3 2,686 0 0 0.0
2014 Q2 2,002 0 0 0.0
2014 Q1 725 0 0 0.0
2013 Q4 2,015 0 0 0.0
2013 Q3 3,161 0 0 0.0
2013 Q2 2,644 0 0 0.0
2013 Q1 739 0 0 0.0
2012 Q4 2,078 1 0 481.2
2012 Q3 2,812 0 0 0.0
2012 Q2 2,454 0 0 0.0
2012 Q1 1,003 0 0 0.0
2011 Q4 3,125 1 0 320.0
2011 Q3 5,630 0 0 0.0
2011 Q2 3,967 0 0 0.0
2011 Q1 928 0 0 0.0
2010 Q4 2,306 0 0 0.0
2010 Q3 4,063 0 0 0.0
2010 Q2 4,134 0 0 0.0
2010 Q1 774 1 0 1292.0
2009 Q4 1,927 0 0 0.0
2009 Q3 2,421 3 1 1239.2
2009 Q2 2,430 0 0 0.0
2009 Q1 1,371 0 0 0.0
2008 Q4 2,227 1 0 449.0
2008 Q3 2,963 0 0 0.0
2008 Q2 2,886 0 0 0.0
2008 Q1 1,221 0 0 0.0
2007 Q4 2,392 3 0 1254.2
2007 Q3 2,937 0 0 0.0
2007 Q2 2,307 0 0 0.0
2007 Q1 1,126 0 0 0.0
2006 Q4 1,757 1 0 569.2
2006 Q3 2,285 0 0 0.0
2006 Q2 3,497 0 0 0.0
2006 Q1 2,224 0 0 0.0
2005 Q4 2,852 0 0 0.0
2005 Q3 3,673 0 0 0.0
2005 Q2 2,766 0 0 0.0
2005 Q1 2,268 0 0 0.0
2004 Q4 2,573 0 0 0.0
2004 Q3 3,205 0 0 0.0
2004 Q2 3,380 3 0 887.6
2004 Q1 2,987 0 0 0.0
2003 Q4 2,618 0 0 0.0
2003 Q3 3,754 0 0 0.0
2003 Q2 3,234 1 0 309.2
2003 Q1 2,947 0 0 0.0
2002 Q4 3,250 0 0 0.0
2002 Q3 2,564 0 0 0.0
2002 Q2 3,522 0 0 0.0
2002 Q1 3,199 0 0 0.0
2001 Q4 2,940 1 0 340.1
2001 Q3 3,776 0 0 0.0
2001 Q2 3,086 5 0 1620.2
2001 Q1 2,352 0 0 0.0
2000 Q4 1,568 0 0 0.0
2000 Q3 2,891 0 0 0.0
2000 Q2 2,918 0 0 0.0
2000 Q1 2,539 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

25 on file

2025 · 1 incident

2023 · 1 incident

2022 · 1 incident

July 13, 2022 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Milestone Materials Div/Mathy Construction Co · Struck by flying object

Operator was using a cut-off wheel and disk came apart. Small section struck operator in the stomach, requiring 4 stitches to close the laceration.

2018 · 2 incidents

October 3, 2018 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
The Kraemer Company LLC · Struck against stationary object

The injured employee was blowing dust off the plant with compressed air, while blowing the dust off they broke protocol and inserted the air nozzle behind a guard on the under side of a tail pulley. The pulley yanked the nozzle from the employees hands cutting their palm.

April 11, 2018 WI · Metal/Non-Metal outside foreman, leadman HANDTOOLS (NONPOWERED)
The Kraemer Company LLC · Struck by... (Not Elsewhere Classified)

The mine foreman was cutting a damaged piece of belting out with a utility knife, EE placed EE's hand in a bad position while cutting and slit EE's hand. EE drove to a local clinic where they gave EE 4 stitches. EE returned to work, total time away from work approx. 4 hours.

2016 · 1 incident

August 22, 2016 WI · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
The Kraemer Company LLC · Over-exertion (Not Elsewhere Classified)

Employee states they were stepping down from a ladder when they twisted their left foot/ankle.

2015 · 1 incident

July 6, 2015 WI · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
The Kraemer Company LLC · Over-exertion (Not Elsewhere Classified)

Employee reported that he was sweeping a sample box through product coming off conveyor belt to collect aggregate material when he felt a sharp pain in his right shoulder.

2011 · 2 incidents

August 24, 2011 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
The Kraemer Company LLC · Struck by falling object

Employee Dropped a heavy metal shim on his left foot.

May 31, 2011 WI · Metal/Non-Metal welder (shop) SLIP OR FALL OF PERSON
The Kraemer Company LLC · Fall to the walkway or working surface

Employee states he was helping to install a deck when he slipped and pulled a muscle in his right arm.

2010 · 2 incidents

April 20, 2010 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
The Kraemer Company LLC · Over-exertion (Not Elsewhere Classified)

Employee was throwing rocks out from behind a boulder; while he was throwing, he was turning his back. Reports back strain.

2008 · 1 incident

October 7, 2008 WI · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant DISORDERS (REPEATED TRAUMA)
The Kraemer Company LLC · Over-exertion (Not Elsewhere Classified)

Unknown at this time.

2005 · 1 incident

August 17, 2005 WI · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
The Kraemer Company LLC · Over-exertion in pulling or pushing objects

Employee was pulling on a pipe wrench to change spouts on fuel tank. Employee reports pain in chest area due to stretched ligament.

2002 · 1 incident

2001 · 2 incidents

September 11, 2001 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
The Kraemer Company LLC · Struck against stationary object

EE WAS CHANGING THE CUTTING EDGE ON LOADER. BOLTHEAD CUT FINGER.

May 24, 2001 WI · Metal/Non-Metal gathering arm loader operator, loading machine operator, joy loader operator SLIP OR FALL OF PERSON
The Kraemer Company LLC · Fall down stairs

EMPLOYEE WAS EXITING JOB TRAILER WHEN HE SLIPPED AND FELL ON THE STEPS, CAUSING INJURY TO HIS LEFT KNEE.

2000 · 1 incident

July 19, 2000 WI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
The Kraemer Company LLC · Struck by... (Not Elsewhere Classified)

EE WAS CUTTING A BELT LACING WITH A UTILITY KNIFE WHEN THE KNIFE SLIPPED AND CUT HIS LEG.

1999 · 2 incidents

September 8, 1999 WI · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
The Kraemer Company LLC · Over-exertion in lifting objects

EE STATED HE EXPERIENCED SEVERE PAIN ACROSS HIS BACK WHILE CARRYING WRENCHES ACROSS QUARRY FLOOR.

May 10, 1999 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
The Kraemer Company LLC · Caught in, under or between (Not Elsewhere Classified)

WHILE INSERTING THE BOWL OF A CONE CRUSHER INTO DRIVE RING, EMPLOYEE'S FOOT SLIPPED UNDERNEATH MACHINE GUARD AND WAS PULLED ALONG. ACCIDENT HAPPENED DURING ROUTINE MAINTENANCE ACTIVITY- CONE C RUSHER WAS NOT RUNNING.

1994 · 2 incidents

November 9, 1994 WI · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Edward Kraemer & Sons Inc · Struck by... (Not Elsewhere Classified)

EE WAS ASSISTING IN PUTTING CONE BACK INTO PLANT. A COWORKER WAS HAMMERING ON A POUND WRENCH WHICH WAS BEING HELD BY EE WHEN THE 12# MAUL MISSED WRENCH AND EE'S FINGER. LACERATION TO RING FING ER.

September 8, 1994 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Edward Kraemer & Sons Inc · Struck by falling object

DURING MOBILIZATION A BANG BOARD WAS BEING MOVED FELL OUT OF A SKIDSTEER BUCKET AND ROLLED ONTO EMPLOYEE'S LEG.

1993 · 2 incidents

September 9, 1993 WI · Metal/Non-Metal gathering arm loader operator, loading machine operator, joy loader operator HANDLING OF MATERIALS
Edward Kraemer & Sons Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS CHANGING THE CUTTING EDGES ON A LOADER WHEN THE EDGE SLIPPED OUT OF HANDS & STRUCK THE SIDE OF HIS FOOT.

April 16, 1993 WI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (REPEATED TRAUMA)
Edward Kraemer & Sons Inc · Over-exertion (Not Elsewhere Classified)

EE IS CLAIMING CARPEL TUNNEL SYNDROME DUE TO HIS EE AS A HEAVY EQUIPMENT OPERATOR.

1991 · 1 incident

September 23, 1991 WI · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Edward Kraemer & Sons Inc · Caught in, under or between (Not Elsewhere Classified)

EMPL CLEANING OFF ROCKS ON CATWALK SCREENING PLANT.STUCK FINGER BEHIND SPRINGS ON SCREEN DECK,NOT REALIZING THERE WAS ANOTHER SPRING BEHIND IT.

1990 · 1 incident