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Stripping #3: 53 MSHA citations Metal/Non-Metal

Controlled by Mark Schildberg
Greenfield, Adair County, IA  ·  Active
MSHA Mine ID: 1302196

Stripping #3 has $6K 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
15
Years on record
1995–2025
Latest incident
Aug 2025
Compliance record
MSHA citations since 2000
53
citations
4
significant & substantial
$6,338
proposed penalties
$6,338
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Schildberg Construction Company Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
57
inspections on record
668
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: 668 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Stripping #3 has $6K 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.
$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
52 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-10.
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.
7.7%
significant & substantial
1.9%
high negligence or reckless
7.7%
reasonably likely or greater
55.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 21.2% low, 76.9% 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: 2026-03-10
0%
of limit-tested samples over the exposure limit
25
samples
9
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg13
  • Quartz, respirable, >1% Qtz8
  • Nuisance dust, total, <1% Qtz3
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (25)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-03-10 Respirable dust, <.1mg 0 Crusher Oper/Worker
2026-03-10 Respirable dust, <.1mg 0 Truck Driver
2025-09-17 Respirable dust, <.1mg 0 Truck Driver
2025-09-17 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2025-09-17 Respirable dust, <.1mg 0 Utility Man
2022-10-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-12-21 Quartz, respirable, >1% Qtz 0.15 Front-end Loader Operator
2021-12-21 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2020-06-02 Nuisance dust, total, <1% Qtz 5.7 10 0.57 Cleanup Man
2020-06-02 Nuisance dust, total, <1% Qtz 7.68 10 0.77 Truck Driver
2020-06-02 Nuisance dust, total, <1% Qtz 0.99 10 0.10 Truck Driver
2018-02-22 Nuisance dust, respirable, <1% Qtz 0.58 10 0.06 Truck Driver
2018-02-22 Quartz, respirable, >1% Qtz 0.13 Front-end Loader Operator
2018-02-22 Quartz, respirable, >1% Qtz 0.22 Rotary Bucket Ex. Operator
2013-01-15 Quartz, respirable, >1% Qtz 0.54 2.98 0.18 Truck Driver
2013-01-15 Respirable dust, <.1mg 0 Backhoe Operator
2013-01-15 Quartz, respirable, >1% Qtz 0.27 1.68 0.16 Truck Driver
2012-08-14 Quartz, respirable, >1% Qtz 0.12 1.25 0.10 Front-end Loader Operator
2012-08-14 Quartz, respirable, >1% Qtz 0.31 1.07 0.29 Crusher Oper/Worker
2012-08-14 Respirable dust, <.1mg 0 Backhoe Operator
2010-02-18 Respirable dust, <.1mg 0 Truck Driver
2010-02-18 Respirable dust, <.1mg 0 Bulldozer Operator
2009-02-24 Respirable dust, <.1mg 0 Backhoe Operator
2009-02-24 Respirable dust, <.1mg 0 Truck Driver
2009-02-24 Quartz, respirable, >1% Qtz 0.14 1.14 0.12 Mechanic
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.

Stripping #3 recorded 0.00 reportable injury cases per 100 full-time workers in 2013.

Injury rate, 2013
ⓘ 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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 2.46 and the all-US-mining average was 2.99 cases per 100 workers.
In Iowa, metal and nonmetal mining averaged 2.35 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
2013 * 0.00 0.00 0.000
2009 * 0.00 0.00 0.000
2008 * 0.00 0.00 0.000
2007 * 0.00 0.00 0.000
2006 * 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 1994 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 6
2024 4
2023 5
2022 3
2021 9
2020 10
2019 9
2018 9
2017 8
2016 7
2015 9
2014 9
2013 10
2012 5
2011 4
2010 5
2009 9
2008 10
2007 15
2006 11
2005 9
2004 7
2003 6
2002 5
2001 7
2000 10
Source: MSHA quarterly employment and production, updated weekly.

Stripping #3 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
2026 Q2 5,047 0 0 0.0
2026 Q1 4,309 4 2 928.3
2025 Q4 2,308 0 0 0.0
2025 Q3 4,508 0 0 0.0
2025 Q2 3,725 1 0 268.5
2025 Q1 2,194 0 0 0.0
2024 Q4 2,429 0 0 0.0
2024 Q3 925 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,001 0 0 0.0
2024 Q1 1,281 0 0 0.0
2023 Q4 3,660 0 0 0.0
2023 Q3 4,437 0 0 0.0
2023 Q2 2,315 0 0 0.0
2022 Q3 1,057 0 0 0.0
2022 Q2 907 0 0 0.0
2022 Q1 973 0 0 0.0
2021 Q4 3,101 1 0 322.5
2021 Q3 4,742 0 0 0.0
2021 Q2 4,842 1 0 206.5
2021 Q1 2,376 2 1 841.8
2020 Q4 3,783 0 0 0.0
2020 Q3 4,752 0 0 0.0
2020 Q2 6,101 6 0 983.4
2020 Q1 4,526 2 0 441.9
2019 Q4 5,420 0 0 0.0
2019 Q3 4,907 0 0 0.0
2019 Q2 5,571 3 0 538.5
2019 Q1 4,020 1 0 248.8
2018 Q4 3,830 0 0 0.0
2018 Q3 5,123 0 0 0.0
2018 Q2 4,461 0 0 0.0
2018 Q1 2,389 5 1 2092.9
2017 Q4 2,651 0 0 0.0
2017 Q3 4,250 0 0 0.0
2017 Q2 4,013 0 0 0.0
2017 Q1 3,297 0 0 0.0
2016 Q4 3,642 1 0 274.6
2016 Q3 4,116 0 0 0.0
2016 Q2 2,852 0 0 0.0
2016 Q1 2,318 0 0 0.0
2015 Q4 5,530 0 0 0.0
2015 Q3 4,756 0 0 0.0
2015 Q2 4,582 2 0 436.5
2015 Q1 3,598 0 0 0.0
2014 Q4 4,107 0 0 0.0
2014 Q3 5,304 0 0 0.0
2014 Q2 6,423 1 0 155.7
2014 Q1 4,088 0 0 0.0
2013 Q4 6,229 0 0 0.0
2013 Q3 6,541 0 0 0.0
2013 Q2 5,906 0 0 0.0
2013 Q1 2,979 1 0 335.7
2012 Q4 3,101 0 0 0.0
2012 Q3 2,356 0 0 0.0
2012 Q2 2,985 0 0 0.0
2012 Q1 3,185 0 0 0.0
2011 Q4 4,059 0 0 0.0
2011 Q3 2,839 0 0 0.0
2011 Q2 3,056 2 0 654.5
2011 Q1 50 0 0 0.0
2010 Q4 0 0 0
2010 Q3 680 0 0 0.0
2010 Q2 4,756 0 0 0.0
2010 Q1 3,354 0 0 0.0
2009 Q4 4,067 0 0 0.0
2009 Q3 5,359 0 0 0.0
2009 Q2 6,189 0 0 0.0
2009 Q1 5,167 0 0 0.0
2008 Q4 4,398 0 0 0.0
2008 Q3 5,838 0 0 0.0
2008 Q2 5,730 1 0 174.5
2008 Q1 4,708 0 0 0.0
2007 Q4 9,301 0 0 0.0
2007 Q3 10,673 0 0 0.0
2007 Q2 6,072 0 0 0.0
2007 Q1 4,996 1 0 200.2
2006 Q4 5,566 0 0 0.0
2006 Q3 6,464 0 0 0.0
2006 Q2 5,810 0 0 0.0
2006 Q1 4,729 1 0 211.5
2005 Q4 5,127 0 0 0.0
2005 Q3 5,669 0 0 0.0
2005 Q2 4,227 0 0 0.0
2005 Q1 3,423 0 0 0.0
2004 Q4 5,241 0 0 0.0
2004 Q3 3,624 0 0 0.0
2004 Q2 3,497 0 0 0.0
2004 Q1 3,811 0 0 0.0
2003 Q4 4,253 0 0 0.0
2003 Q3 3,316 0 0 0.0
2003 Q2 3,567 0 0 0.0
2003 Q1 440 0 0 0.0
2002 Q4 464 0 0 0.0
2002 Q3 3,304 1 0 302.7
2002 Q2 4,120 5 0 1213.6
2002 Q1 3,385 0 0 0.0
2001 Q4 2,086 0 0 0.0
2001 Q3 3,586 0 0 0.0
2001 Q2 3,523 0 0 0.0
2001 Q1 2,927 1 0 341.6
2000 Q4 3,110 0 0 0.0
2000 Q3 4,167 0 0 0.0
2000 Q2 4,537 0 0 0.0
2000 Q1 5,855 4 0 683.2
No fatalities recorded at this mine.

Reportable incidents

15 on file

2025 · 1 incident

2024 · 1 incident

2021 · 1 incident

August 18, 2021 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Schildberg Construction Company Inc · Over-exertion (Not Elsewhere Classified)

Stepped out of cab to get off of machine that EE was measuring. Turned to position self to step down backwards & grab grab-iron. This is the motion that tweaked EE's back. EE was in the parking lot not in the mine itself. EE has prior back issues from past injuries.

2019 · 1 incident

May 30, 2019 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 against a moving object

Loading boulders into employees truck, rocking the truck and hurting their back, mid back pain.

2016 · 1 incident

2015 · 1 incident

January 14, 2015 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 · Struck by... (Not Elsewhere Classified)

Employee was grabbing a spade from the dozer operator and didn't keep mind on task. The spade stuck his lower lip and had to have 2 stitches. Returned to work with no lost time.

2014 · 1 incident

September 13, 2014 IA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Schildberg Construction Company Inc · Caught in, under or between a moving and a stationary object

Miner was replacing a belt on a conveyor when his finger was pinched. Miner then went to hospital and had his finger stitched and returned to work 9-15-2014 with no restrictions.

2011 · 1 incident

March 29, 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 lifting objects

Truck driver was helping excavator operator remove a rock from tracks of excavator.

2004 · 1 incident

February 9, 2004 IA · Metal/Non-Metal truck driver POWERED HAULAGE
Schildberg Construction Company Inc · Caught in, under or between (Not Elsewhere Classified)

EE WAS WORKING ON A HEATER FAN. HE STUCK HIS HAND IN THE HOT AIR DISCHARGE CHANNEL AND CONTACTED THE ROTATING BLADE, CUTTING HIS RIGHT MIDDLE FINGERTIP.

2002 · 1 incident

September 3, 2002 IA · Metal/Non-Metal EXPLOSIVES AND BREAKING AGENTS
Schildberg Construction Company Inc · Accident type, without injuries

AT APPROX 5 AM ON SEPT 3, 02 THE EXPLOSIVES STORAGE MAGAZINE EXPLODED. I FIRST HAD KNOWLEDGE OF THE EXPLOSION AT 6:00 AM AND CALLED MSHA AT APPROX 6:20 AM CST. MAGAZINE WAS LOCATED IN UNION AT THE THAYER QUARRY.

1999 · 2 incidents

December 16, 1999 IA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Schildberg Construction Company Inc · Caught in, under or between a moving and a stationary object

EE WAS FUELING DOZER AND WHILE ROLLING HOSE BACK ON TO THE FUEL TRUCK REEL THE CELENAID ON THE SWITCH STREET AND THE HOSE CONTINUED TO ROLL CATCHING THE EE LEFT RING FINGER AND BREAKING THE ON E AT THE TIP.

June 19, 1999 IA · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler HANDTOOLS (NONPOWERED)
Schildberg Construction Company Inc · Struck by powered moving object

EE WAS WORKING UNDER LOADOUT FEED BIN #220. TIGHTENING A BOLT. WHILE COMING OUT FROM UNDER EQUIPMENT HE STOOD UP TOO SOON & HIT HIS BACK JUST BELOW THE NECK BETWEEN SHOULDER BLADES ON CROSS MEMBER

1997 · 2 incidents

August 13, 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

THE CONDITIONS AT ATLANTIC QUARRY WERE WET AND MUDDY. EMP WAS HOOKING CHAIN TO BACKHOE BUCKET. MUD WAS EVERYWHERE INCLUDING ON BOOTS. FEET CAME IN CONTACT WITH WET STEEL OF LOADER BUCKET. THIS CAUSED A SLIP AND EMP LOST BALANCE. SLIP CAUSEDEMP TO PULL MUSCLES IN RIB AREA. EMP WAS OFF WORK 1 DAY.

April 29, 1997 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)

REPETITIVE USE OF HANDS. CARPAL TUNNEL SYNDROME.

1995 · 1 incident

March 3, 1995 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

EE WAS HELPING CHANGE A CABLE ON A CAT DOZER. AS HE WAS PULLING OLD CABLE OUT, HE CLAIMED HIS ABHOMINAL MUSCLES WERE SORE. EE WAS BOWLING IN A LEAGUE WHEN HE WAS OFF. I AM CONCERNED IF HE WAS ABLE TO COME BACK TO WORK SOONER.