Mining Incidents

PORTABLE SCREENER: 11 MSHA citations Metal/Non-Metal

Krueger Brothers Gravel & Dirt · Surface
Groton, Spink County, SD  ·  Intermittent
MSHA Mine ID: 3901432

PORTABLE SCREENER has $1K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at PORTABLE SCREENER.

Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2009
11
citations
0
significant & substantial
$1,233
proposed penalties
$1,233
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
33
inspections on record
308
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: 308 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

PORTABLE SCREENER has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
11 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-03-25.
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.
0.0%
significant & substantial
0.0%
high negligence or reckless
0.0%
reasonably likely or greater
18.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 100.0% 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: 2022-08-02, 4 years ago
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2022-08-02 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-06-08 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.
Ownership history
  1. Krueger Brothers Gravel & Dirt 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 1
2024 1
2023 2
2022 2
2021 2
2020 2
2019 2
2018 2
2017 2
2016 2
2015 2
2014 2
2013 2
2012 2
2011 2
2010 2
2009 2
2008 2
2007 2
2006 2
2005 2
2004 1
2003 1
2002 2
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

PORTABLE SCREENER sits in Spink County, South Dakota, where the Census mining category is 0.6% 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.
Spink County, South Dakota · Population 6,283
0.6%
Mining share of county employment
$73,011
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 80 0 0 0.0
2026 Q1 0 0 0
2025 Q4 124 0 0 0.0
2025 Q3 137 0 0 0.0
2025 Q2 123 0 0 0.0
2025 Q1 20 1 0 50000.0
2024 Q4 89 0 0 0.0
2024 Q3 169 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 184 0 0 0.0
2024 Q1 0 0 0
2023 Q4 166 0 0 0.0
2023 Q3 199 0 0 0.0
2023 Q2 149 0 0 0.0
2023 Q1 0 0 0
2022 Q4 57 0 0 0.0
2022 Q3 167 0 0 0.0
2022 Q2 9 0 0 0.0
2022 Q1 0 0 0
2021 Q4 72 0 0 0.0
2021 Q3 44 0 0 0.0
2021 Q2 101 0 0 0.0
2021 Q1 0 0 0
2020 Q4 146 2 0 13698.6
2020 Q3 128 0 0 0.0
2020 Q2 70 0 0 0.0
2020 Q1 0 0 0
2019 Q4 98 0 0 0.0
2019 Q3 141 0 0 0.0
2019 Q2 37 0 0 0.0
2019 Q1 0 0 0
2018 Q4 26 2 0 76923.1
2018 Q3 113 0 0 0.0
2018 Q2 27 0 0 0.0
2018 Q1 0 0 0
2017 Q4 143 0 0 0.0
2017 Q3 128 0 0 0.0
2017 Q2 84 0 0 0.0
2017 Q1 0 0 0
2016 Q4 72 0 0 0.0
2016 Q3 63 0 0 0.0
2016 Q2 101 0 0 0.0
2016 Q1 0 0 0
2015 Q4 46 0 0 0.0
2015 Q3 90 0 0 0.0
2015 Q2 48 0 0 0.0
2015 Q1 0 0 0
2014 Q4 74 0 0 0.0
2014 Q3 211 1 0 4739.3
2014 Q2 195 0 0 0.0
2014 Q1 0 0 0
2013 Q4 87 0 0 0.0
2013 Q3 109 0 0 0.0
2013 Q2 57 0 0 0.0
2013 Q1 0 0 0
2012 Q4 206 0 0 0.0
2012 Q3 255 0 0 0.0
2012 Q2 236 0 0 0.0
2012 Q1 0 0 0
2011 Q4 227 0 0 0.0
2011 Q3 276 0 0 0.0
2011 Q2 362 3 0 8287.3
2011 Q1 0 0 0
2010 Q4 163 1 0 6135.0
2010 Q3 210 0 0 0.0
2010 Q2 372 0 0 0.0
2010 Q1 0 0 0
2009 Q4 183 0 0 0.0
2009 Q3 204 0 0 0.0
2009 Q2 220 1 0 4545.5
2009 Q1 0 0 0
2008 Q4 188 0 0 0.0
2008 Q3 191 0 0 0.0
2008 Q2 270 0 0 0.0
2008 Q1 0 0 0
2007 Q4 82 0 0 0.0
2007 Q3 166 0 0 0.0
2007 Q2 150 0 0 0.0
2007 Q1 0 0 0
2006 Q4 203 0 0 0.0
2006 Q3 167 0 0 0.0
2006 Q2 217 0 0 0.0
2006 Q1 0 0 0
2005 Q4 137 0 0 0.0
2005 Q3 118 0 0 0.0
2005 Q2 238 0 0 0.0
2005 Q1 0 0 0
2004 Q4 112 0 0 0.0
2004 Q3 82 0 0 0.0
2004 Q2 86 0 0 0.0
2004 Q1 0 0 0
2003 Q4 150 0 0 0.0
2003 Q3 61 0 0 0.0
2003 Q2 115 0 0 0.0
2003 Q1 0 0 0
2002 Q4 218 0 0 0.0
2002 Q3 86 0 0 0.0
2002 Q2 91 0 0 0.0
2002 Q1 0 0 0
2001 Q4 196 0 0 0.0
2001 Q3 222 0 0 0.0
2001 Q2 68 0 0 0.0
2001 Q1 0 0 0
2000 Q4 20 0 0 0.0
2000 Q3 286 0 0 0.0
2000 Q2 62 0 0 0.0
2000 Q1 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.