Mining Incidents

Screener #1: 35 MSHA citations Metal/Non-Metal

David Schladweiler Construction · Surface
Controlled by David J Schladweiler
Mitchell, Davison County, SD  ·  Intermittent
MSHA Mine ID: 3901495

Screener #1 has $12K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2009
35
citations
10
significant & substantial
$12,352
proposed penalties
$12,352
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
29
inspections on record
303
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: 303 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Screener #1 has $12K 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.
$12K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
35 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-05-05.
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.
28.6%
significant & substantial
22.9%
high negligence or reckless
28.6%
reasonably likely or greater
48.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 2.9% low, 74.3% moderate, 22.9% 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: 2020-09-16, 5 years ago
0%
of limit-tested samples over the exposure limit
5
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Quartz, respirable, >1% Qtz1
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2020-09-16 Respirable dust, <.1mg 0 Mechanic
2012-01-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-01-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2012-01-04 Respirable dust, <.1mg 0 Backhoe Operator
2012-01-04 Quartz, respirable, >1% Qtz 0.18 1.67 0.11 Crusher Oper/Worker

Area samples (mill and shop air)

Last sampled: 2016-05-24, 10 years ago
1
samples
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Area sampled
2016-05-24 Respirable dust, <.1mg 0 SF ACTIVE MINING
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. David Schladweiler Construction 2004 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 3
2025 3
2024 3
2023 3
2022 3
2021 3
2020 4
2019 2
2018 3
2017 4
2016 3
2015 3
2014 3
2013 3
2012 4
2011 3
2010 3
2009 2
2008 1
2007 1
2005 0
Source: MSHA quarterly employment and production, updated weekly.

Screener #1 sits in Davison County, South Dakota, 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.
Davison County, South Dakota · Population 19,936
0.1%
Mining share of county employment
$61,401
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 560 0 0 0.0
2026 Q1 30 0 0 0.0
2025 Q4 450 0 0 0.0
2025 Q3 450 0 0 0.0
2025 Q2 485 1 0 2061.9
2025 Q1 0 0 0
2024 Q4 720 0 0 0.0
2024 Q3 965 0 0 0.0
Show 68 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 328 0 0 0.0
2024 Q1 85 0 0 0.0
2023 Q4 990 0 0 0.0
2023 Q3 815 0 0 0.0
2023 Q2 902 0 0 0.0
2023 Q1 40 0 0 0.0
2022 Q4 655 0 0 0.0
2022 Q3 850 0 0 0.0
2022 Q2 215 0 0 0.0
2022 Q1 40 0 0 0.0
2021 Q4 1,062 0 0 0.0
2021 Q3 820 0 0 0.0
2021 Q2 1,716 0 0 0.0
2021 Q1 65 0 0 0.0
2020 Q4 770 0 0 0.0
2020 Q3 870 0 0 0.0
2020 Q2 760 1 0 1315.8
2020 Q1 110 0 0 0.0
2019 Q4 815 0 0 0.0
2019 Q3 565 0 0 0.0
2019 Q2 360 0 0 0.0
2019 Q1 0 0 0
2018 Q4 695 0 0 0.0
2018 Q3 750 0 0 0.0
2018 Q2 310 0 0 0.0
2018 Q1 40 0 0 0.0
2017 Q4 1,280 5 1 3906.2
2017 Q3 2,040 0 0 0.0
2017 Q2 600 0 0 0.0
2017 Q1 60 0 0 0.0
2016 Q4 490 7 1 14285.7
2016 Q3 800 0 0 0.0
2016 Q2 520 5 1 9615.4
2016 Q1 10 0 0 0.0
2015 Q4 610 0 0 0.0
2015 Q3 380 1 0 2631.6
2015 Q2 443 1 0 2257.3
2015 Q1 5 0 0 0.0
2014 Q4 230 0 0 0.0
2014 Q3 345 2 1 5797.1
2014 Q2 320 0 0 0.0
2014 Q1 30 0 0 0.0
2013 Q4 388 0 0 0.0
2013 Q3 758 0 0 0.0
2013 Q2 85 4 1 47058.8
2013 Q1 5 0 0 0.0
2012 Q4 140 0 0 0.0
2012 Q3 240 0 0 0.0
2012 Q2 1,010 0 0 0.0
2012 Q1 285 5 3 17543.9
2011 Q4 545 0 0 0.0
2011 Q3 260 1 0 3846.2
2011 Q2 6 0 0 0.0
2011 Q1 2 0 0 0.0
2010 Q4 45 0 0 0.0
2010 Q3 75 0 0 0.0
2010 Q2 145 0 0 0.0
2010 Q1 5 0 0 0.0
2009 Q4 34 2 2 58823.5
2009 Q3 16 0 0 0.0
2009 Q2 2 0 0 0.0
2009 Q1 0 0 0
2008 Q4 96 0 0 0.0
2008 Q3 1 0 0 0.0
2008 Q2 0 0 0
2008 Q1 0 0 0
2007 Q4 60 0 0 0.0
2005 Q3 0 0 0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.