Mining Incidents

PLANT #4: 70 MSHA citations Metal/Non-Metal

Controlled by Mark Schildberg
Greenfield, Adair County, IA  ·  Abandoned
MSHA Mine ID: 1302093

PLANT #4 has $25K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
19
Years on record
1986–2022
Latest incident
Oct 2022
Compliance record
MSHA citations since 2001
70
citations
12
significant & substantial
$24,969
proposed penalties
$11,718
paid to date
47% of proposed penalties paid to date, a $13,251 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
52
inspections on record
751
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: 751 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 #4 has $25K 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.
$25K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
69 assessments are final orders; 2 contested dockets.
Of $15K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2022-04-27.
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.
17.4%
significant & substantial
1.4%
high negligence or reckless
17.4%
reasonably likely or greater
66.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 27.5% low, 71.0% moderate, 1.4% 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.
3 citations taken to the federal commission · 4% of citations on record
  • Settled 2 · 67%
  • Vacated or withdrawn 1 · 33%
67%
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%
89%
Penalty reduction in decided contests
$15K 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 2014-10-21.
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
CENT 2008-779M Settlement Miller 2009 $15K → $1K
CENT 2015-0041 Settlement Miller 2015 $254 → $127
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: 2022-04-27, 4 years ago
8%
of limit-tested samples over the exposure limit
44
samples
36
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz393 over
  • Respirable dust, <.1mg3
  • Nuisance dust, respirable, <1% Qtz1
  • Nuisance dust, total, <1% Qtz1
Show the individual readings (44)
Date Contaminant Concentration Limit Conc / limit Occupation
2015-10-20 Quartz, respirable, >1% Qtz 2.01 1.71 1.18 Truck Driver
2003-12-18 Quartz, respirable, >1% Qtz 1.1 1.05 1.05 Laborer, Bullgang
2001-07-17 Quartz, respirable, >1% Qtz 1.07 1.03 1.04 Crusher Oper/Worker
2022-04-27 Quartz, respirable, >1% Qtz 0.63 1.43 0.44 Dry Screen Plant Operator
2022-04-27 Quartz, respirable, >1% Qtz 0.85 1.45 0.59 Crusher Oper/Worker
2022-04-27 Quartz, respirable, >1% Qtz 0.45 0.82 0.55 Truck Driver
2021-02-03 Quartz, respirable, >1% Qtz 0.31 Dump Operator
2021-02-03 Nuisance dust, respirable, <1% Qtz 0.2 10 0.02 Cleanup Man
2021-02-03 Respirable dust, <.1mg 0 Truck Driver
2020-05-20 Nuisance dust, total, <1% Qtz 0.88 10 0.09 Truck Driver
2020-05-20 Quartz, respirable, >1% Qtz 0.16 Cleanup Man
2020-05-20 Quartz, respirable, >1% Qtz 0.5 0.91 0.55 Crusher Oper/Worker
2018-03-20 Quartz, respirable, >1% Qtz 0.15 Truck Driver
2018-03-20 Quartz, respirable, >1% Qtz 0.21 Utility Man
2018-03-20 Quartz, respirable, >1% Qtz 0.28 Cleanup Man
2018-03-20 Quartz, respirable, >1% Qtz 0.64 0.93 0.69 Crusher Oper/Worker
2015-10-20 Quartz, respirable, >1% Qtz 0.88 1.08 0.81 Hammer Mill Operator
2015-10-20 Quartz, respirable, >1% Qtz 0.52 1.02 0.51 Utility Man
2013-09-25 Quartz, respirable, >1% Qtz 0.31 0.81 0.38 Crusher Oper/Worker
2013-09-25 Quartz, respirable, >1% Qtz 0.36 1.06 0.34 Mechanic
2013-09-25 Quartz, respirable, >1% Qtz 0.24 1.06 0.23 Bulldozer Operator
2011-03-02 Quartz, respirable, >1% Qtz 0.59 0.94 0.63 Crusher Oper/Worker
2011-03-02 Quartz, respirable, >1% Qtz 0.66 1.06 0.62 Utility Man
2011-03-02 Quartz, respirable, >1% Qtz 0.41 1.71 0.24 Mechanic
2011-03-02 Quartz, respirable, >1% Qtz 0.29 1.42 0.20 Drill Operator, Rotary
2011-03-02 Quartz, respirable, >1% Qtz 0.39 1.1 0.35 Bulldozer Operator
2010-02-18 Quartz, respirable, >1% Qtz 0.34 1.29 0.26 Crusher Oper/Worker
2010-02-18 Respirable dust, <.1mg 0 Cleanup Man
2010-02-18 Quartz, respirable, >1% Qtz 0.34 1.36 0.25 Drill Operator, Rotary
2010-02-18 Quartz, respirable, >1% Qtz 0.2 0.85 0.24 Truck Driver
2009-01-08 Quartz, respirable, >1% Qtz 0.96 1.31 0.73 Crusher Oper/Worker
2009-01-08 Quartz, respirable, >1% Qtz 0.41 1.62 0.25 Truck Driver
2009-01-08 Quartz, respirable, >1% Qtz 0.9 1.27 0.71 Cleanup Man
2005-01-26 Respirable dust, <.1mg 0 Laborer, Bullgang
2005-01-26 Quartz, respirable, >1% Qtz 0.19 0.98 0.19 Crusher Oper/Worker
2005-01-26 Quartz, respirable, >1% Qtz 1.26 1.59 0.79 Crusher Oper/Worker
2005-01-26 Quartz, respirable, >1% Qtz 0.55 3.21 0.17 Crusher Oper/Worker
2005-01-26 Quartz, respirable, >1% Qtz 0.62 1.44 0.43 Laborer, Bullgang
2003-12-18 Quartz, respirable, >1% Qtz 1.25 1.81 0.69 Crusher Oper/Worker
2003-12-18 Quartz, respirable, >1% Qtz 0.17 0.82 0.21 Truck Driver
2003-12-18 Quartz, respirable, >1% Qtz 1.7 1.91 0.89 Crusher Oper/Worker
2001-07-17 Quartz, respirable, >1% Qtz 0.19 0.8 0.24 Truck Driver
2001-07-17 Quartz, respirable, >1% Qtz 0.59 2.9 0.20 Drill Operator, Rotary
2001-07-17 Quartz, respirable, >1% Qtz 0.26 0.73 0.36 Truck Driver
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.

PLANT #4 recorded 7.49 reportable injury cases per 100 full-time workers in 2022.

Injury rate, 2022
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.
7.49
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.78 and the all-US-mining average was 2.12 cases per 100 workers.
In Iowa, metal and nonmetal mining averaged 2.80 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
2022 * 7.49 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 0.00 0.00 0.000
2019 * 6.40 0.00 0.000
2018 * 7.38 7.38 0.000
2017 * 6.67 6.67 0.000
2016 * 0.00 0.00 0.000
2015 * 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. Schildberg Construction Company Inc 1985 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2022 12
2021 13
2020 14
2019 14
2018 13
2017 14
2016 13
2015 13
2014 15
2013 16
2012 15
2011 14
2010 14
2009 16
2008 17
2007 18
2006 17
2005 18
2004 16
2003 15
2002 1
2001 11
2000 17
Source: MSHA quarterly employment and production, updated weekly.

PLANT #4 sits in Adair County, Iowa, where the Census mining category is 1.3% 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.
Adair County, Iowa · Population 7,471
1.3%
Mining share of county employment
$66,176
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
2022 Q4 5,454 0 0 0.0
2022 Q3 7,469 0 0 0.0
2022 Q2 7,340 1 0 136.2
2022 Q1 6,436 1 0 155.4
2021 Q4 6,865 0 0 0.0
2021 Q3 8,250 0 0 0.0
2021 Q2 7,427 1 0 134.6
2021 Q1 6,023 2 0 332.1
Show 84 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2020 Q4 6,937 0 0 0.0
2020 Q3 7,496 0 0 0.0
2020 Q2 8,095 0 0 0.0
2020 Q1 7,582 0 0 0.0
2019 Q4 8,051 3 0 372.6
2019 Q3 8,660 0 0 0.0
2019 Q2 8,119 0 0 0.0
2019 Q1 6,418 1 0 155.8
2018 Q4 6,763 1 0 147.9
2018 Q3 5,044 0 0 0.0
2018 Q2 8,639 0 0 0.0
2018 Q1 6,657 1 0 150.2
2017 Q4 6,611 0 0 0.0
2017 Q3 8,273 0 0 0.0
2017 Q2 7,823 2 1 255.7
2017 Q1 7,257 1 0 137.8
2016 Q4 7,605 0 0 0.0
2016 Q3 7,262 0 0 0.0
2016 Q2 8,963 0 0 0.0
2016 Q1 6,599 2 0 303.1
2015 Q4 7,338 1 0 136.3
2015 Q3 7,666 0 0 0.0
2015 Q2 8,483 1 0 117.9
2015 Q1 4,809 1 0 207.9
2014 Q4 8,068 0 0 0.0
2014 Q3 9,119 1 1 109.7
2014 Q2 9,556 0 0 0.0
2014 Q1 6,541 1 0 152.9
2013 Q4 8,120 1 0 123.2
2013 Q3 10,103 0 0 0.0
2013 Q2 11,676 0 0 0.0
2013 Q1 7,618 0 0 0.0
2012 Q4 7,037 0 0 0.0
2012 Q3 10,086 0 0 0.0
2012 Q2 10,748 0 0 0.0
2012 Q1 8,738 1 1 114.4
2011 Q4 8,817 0 0 0.0
2011 Q3 8,678 0 0 0.0
2011 Q2 9,570 0 0 0.0
2011 Q1 6,025 3 1 497.9
2010 Q4 7,757 1 0 128.9
2010 Q3 8,706 0 0 0.0
2010 Q2 9,525 2 1 210.0
2010 Q1 4,135 0 0 0.0
2009 Q4 8,201 0 0 0.0
2009 Q3 10,092 0 0 0.0
2009 Q2 10,341 5 1 483.5
2009 Q1 7,357 4 1 543.7
2008 Q4 8,718 0 0 0.0
2008 Q3 10,677 0 0 0.0
2008 Q2 9,740 0 0 0.0
2008 Q1 8,369 4 0 478.0
2007 Q4 8,721 5 1 573.3
2007 Q3 11,579 0 0 0.0
2007 Q2 11,902 0 0 0.0
2007 Q1 7,684 3 1 390.4
2006 Q4 8,694 0 0 0.0
2006 Q3 9,845 0 0 0.0
2006 Q2 10,441 0 0 0.0
2006 Q1 10,487 0 0 0.0
2005 Q4 9,287 0 0 0.0
2005 Q3 10,872 0 0 0.0
2005 Q2 10,215 0 0 0.0
2005 Q1 9,365 2 1 213.6
2004 Q4 11,257 0 0 0.0
2004 Q3 10,650 0 0 0.0
2004 Q2 10,175 0 0 0.0
2004 Q1 7,546 0 0 0.0
2003 Q4 8,230 7 1 850.5
2003 Q3 10,104 2 0 197.9
2003 Q2 9,385 0 0 0.0
2003 Q1 2,580 0 0 0.0
2002 Q4 971 0 0 0.0
2002 Q3 504 1 1 1984.1
2002 Q2 520 0 0 0.0
2002 Q1 464 0 0 0.0
2001 Q4 2,977 0 0 0.0
2001 Q3 3,218 6 0 1864.5
2001 Q2 7,399 0 0 0.0
2001 Q1 6,922 0 0 0.0
2000 Q4 6,814 0 0 0.0
2000 Q3 8,461 0 0 0.0
2000 Q2 11,030 0 0 0.0
2000 Q1 8,712 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

19 on file

2022 · 1 incident

October 18, 2022 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Schildberg Construction Company Inc · Struck by... (Not Elsewhere Classified)

Employee was using a pry bar on the screen deck motor when the bar slipped hitting EE in the face.

2019 · 1 incident

2018 · 1 incident

June 14, 2018 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Schildberg Construction Company Inc · Caught in, under or between a moving and a stationary object

Taking brace off of plant, bolt was stuck and the brace smashed left hand

2017 · 1 incident

2013 · 1 incident

September 6, 2013 IA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Schildberg Construction Company Inc · Struck by... (Not Elsewhere Classified)

Removing a bolt with air gun, bolt spun in the other hand causing the injury.

2012 · 1 incident

May 24, 2012 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Schildberg Construction Company Inc · Struck by falling object

Miner dropped an electric drill on his hand Thursday 5/24/2012. Results of his injury was a break to his hand. He did not tell his supervisor or seek treatment until he returned to work on 5/25/2012. Office was notified on 5/29/2012 that he will be off work until the hand is healed.

2011 · 1 incident

June 16, 2011 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Schildberg Construction Company Inc · Over-exertion in pulling or pushing objects

Employee rolled a rock off haul road to remove from travel area, strained a muscle, did not seek treatment at that time. That night he went to the dr. for pain & was released with instructions to use ice and Tylenol as needed. He went to the dr. night of 6/21, referred to Des Moines for further treatment, diagnosed torn bicep muscle 6/22 first missed day Scheduled for surgery 6/28

2009 · 2 incidents

March 19, 2009 IA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Schildberg Construction Company Inc · Struck against a moving object

Loader/scale operator running loader experienced pain in lower back. Did not report to office untill 3/30/2009. Went to doctor on 3/31/09, was released back to work with a 25 lb weight restriction.

January 26, 2009 IA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Schildberg Construction Company Inc · Caught in, under or between a moving and a stationary object

Employee was lifting drive shaft from loader with chain hoist. Weight shifted and caught finger between shaft and loader.

2007 · 1 incident

April 4, 2007 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver DISORDERS (REPEATED TRAUMA)
Schildberg Construction Company Inc · Over-exertion (Not Elsewhere Classified)

Running levers five years ago lead to carpal tunnel. *Please see attachment* EE had surgery on 7/24/07 & returned to work on 8/3/07.

2006 · 1 incident

June 14, 2006 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Schildberg Construction Company Inc · Over-exertion (Not Elsewhere Classified)

Employee was dismounting his truck and caught his arm in the hand rail and twisted his left shoulder.

2005 · 1 incident

March 30, 2005 IA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Schildberg Construction Company Inc · Over-exertion in lifting objects

Employees' were lifting an 8'brace up to position it to be chained to loader bucket. Ground was wet & muddy, brace slipped & fell on EE's arm.

2001 · 1 incident

July 10, 2001 IA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Schildberg Construction Company Inc · Struck against stationary object

EMPLOYEE'S WERE IN THE PROCESS OF CHANGING SCREENS IN THE SCREEN PLANT AND EMPLOYEE CUT HIS RIGHT LITTLE FINGER ON A STEEL FLANGE. THIS CUT REQUIRED 10 STITCHES.

1999 · 1 incident

August 16, 1999 IA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Schildberg Construction Company Inc · Struck against stationary object

EE WAS REMOVING BREAKING BAR IN BREAKER AND HIT HIS RIGHT FOREARM ON A PIECE OF ANGLE IRON CUTTING IT. HE WENT TO DR. AND RECEIVE ONE STAPLE TO CLOSE CUT.

1998 · 1 incident

June 25, 1998 IA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Schildberg Construction Company Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE AND OTHER EMPLOYEE WERE DRIVING OUT RACES ON A GD ROCK DRILL. EMPLOYEE HAD A HOLD OF PUNCH. AS EMPLOYEE HIT THE PUNCH A SMALL PIECE OF STEEL CAME OFF AND HIT EMPLOYEE IN THE INDEX FIN GER. EMPLOYEE HAD GLOVES ON BUT STEEL WENT THROUGH. BY THE TIME THE DOCTOR PULLED THE STEEL OUT EMPLOYEE NEEDED 2 STITCHES. PUNCH WAS APPROXIMATELY 7" LONG (SNAP ON).

1997 · 3 incidents

June 9, 1997 IA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Schildberg Construction Company Inc · Fall to the walkway or working surface

EE WAS PREPARING TO REPLACE A SHEAVE ON A CATAPILLAR IMPACT BREAKER MOTOR. THE MOTOR WAS ON THE GROUND & SET OFF TO THE SIDE WELL OUT OF THE WAYOF ANY EQUIPMENT.AS EE WAS FINISHING UP THE SHEA VE REPLACEMENT HE STEPPED BACK A COUPLE OF STEPSAT THIS TIME HE WAS FACING THE MOTOR, NEXT THINGEE KNEW HE HAD TRIPPED OVER SOMETHING LYING ON THE GROUND. AS EE FELL TO THE GROUND HIS HARD HA

1986 · 1 incident

June 24, 1986 IA · Metal/Non-Metal superintendent POWERED HAULAGE
Schildberg Construction Company Inc · Caught in, under or between a moving and a stationary object

DISMANTNLING RI1-RAP SCREENING PLANT.INJ LIFTING ONE END OF 12'' X 12'' X 5'.TO MOVE IT OUT OF THE WAY OF FRONT LOADER WHICHWAS GOING TO LIFT PIECE OF EQUIP.LOADER STOPPED AT THE TIME.OPERATY OR MIS-INTERPRE7ED HANDSIGNAL AND MOVED LOADER HAHEAD HITTING BLOCK OF WOOD AND PUSHING T INTO CONVEYOR PINNING INJ PERSONS HAND BETWEEN BLOCK AND WOOD AND CONVEYOR.