Mining Incidents

Disterhoft Pit Dept. 483: 35 MSHA citations Metal/Non-Metal

Controlled by Manaco Corporation
Marengo, Iowa County, IA  ·  Abandoned
MSHA Mine ID: 1300997

Disterhoft Pit Dept. 483 has $4K 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 2000
35
citations
6
significant & substantial
$4,159
proposed penalties
$4,159
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
36
inspections on record
368
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: 368 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Disterhoft Pit Dept. 483 has $4K 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
35 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-10-13.
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.
17.1%
significant & substantial
2.9%
high negligence or reckless
17.1%
reasonably likely or greater
80.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.7% low, 91.4% moderate, 2.9% 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: 2023-09-26
6
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg6
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-09-26 Respirable dust, <.1mg 0 Dredge/Barge Operator
2023-09-26 Respirable dust, <.1mg 0 Washer Operator
2021-05-03 Respirable dust, <.1mg 0 Washer Operator
2021-05-03 Respirable dust, <.1mg 0 Dredge/Barge Operator
2004-05-25 Respirable dust, <.1mg 0 Cleanup Man
2004-05-25 Respirable dust, <.1mg 0 Laborer, Bullgang
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. Marengo Ready Mix Inc. 1950 to 2024
  2. Wendling Quarries Inc. 2024 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2024 4
2023 5
2022 5
2021 5
2020 4
2019 5
2018 4
2017 4
2016 4
2015 4
2014 4
2013 4
2012 4
2011 4
2010 4
2009 4
2008 4
2007 4
2006 5
2005 5
2004 4
2003 5
2002 5
2001 5
2000 4
Source: MSHA quarterly employment and production, updated weekly.

Disterhoft Pit Dept. 483 sits in Iowa County, Iowa, where the Census mining category is 0.0% 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.
Iowa County, Iowa · Population 16,547
0.0%
Mining share of county employment
$72,185
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
2024 Q1 592 0 0 0.0
2023 Q4 1,829 1 1 546.7
2023 Q3 2,495 0 0 0.0
2023 Q2 1,661 0 0 0.0
2023 Q1 532 0 0 0.0
2022 Q4 1,238 0 0 0.0
2022 Q3 2,488 1 0 401.9
2022 Q2 1,638 0 0 0.0
Show 89 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2022 Q1 568 0 0 0.0
2021 Q4 1,400 0 0 0.0
2021 Q3 2,651 0 0 0.0
2021 Q2 2,030 2 0 985.2
2021 Q1 496 0 0 0.0
2020 Q4 1,574 0 0 0.0
2020 Q3 2,464 0 0 0.0
2020 Q2 2,286 0 0 0.0
2020 Q1 666 0 0 0.0
2019 Q4 1,610 1 0 621.1
2019 Q3 2,163 0 0 0.0
2019 Q2 1,889 0 0 0.0
2019 Q1 589 0 0 0.0
2018 Q4 1,358 0 0 0.0
2018 Q3 1,619 0 0 0.0
2018 Q2 1,682 0 0 0.0
2018 Q1 533 0 0 0.0
2017 Q4 1,240 0 0 0.0
2017 Q3 1,929 0 0 0.0
2017 Q2 1,897 0 0 0.0
2017 Q1 640 0 0 0.0
2016 Q4 1,180 0 0 0.0
2016 Q3 1,606 0 0 0.0
2016 Q2 1,662 1 0 601.7
2016 Q1 570 0 0 0.0
2015 Q4 1,594 0 0 0.0
2015 Q3 1,417 0 0 0.0
2015 Q2 1,489 0 0 0.0
2015 Q1 539 0 0 0.0
2014 Q4 1,332 0 0 0.0
2014 Q3 1,250 0 0 0.0
2014 Q2 1,475 1 0 678.0
2014 Q1 509 0 0 0.0
2013 Q4 1,229 0 0 0.0
2013 Q3 1,637 0 0 0.0
2013 Q2 1,613 4 1 2479.9
2013 Q1 517 0 0 0.0
2012 Q4 1,134 0 0 0.0
2012 Q3 1,436 0 0 0.0
2012 Q2 1,523 0 0 0.0
2012 Q1 660 1 0 1515.2
2011 Q4 825 0 0 0.0
2011 Q3 1,135 0 0 0.0
2011 Q2 1,139 0 0 0.0
2011 Q1 806 0 0 0.0
2010 Q4 916 0 0 0.0
2010 Q3 1,033 1 0 968.1
2010 Q2 1,199 0 0 0.0
2010 Q1 822 0 0 0.0
2009 Q4 1,041 0 0 0.0
2009 Q3 1,086 0 0 0.0
2009 Q2 1,233 0 0 0.0
2009 Q1 1,337 0 0 0.0
2008 Q4 1,063 0 0 0.0
2008 Q3 1,134 0 0 0.0
2008 Q2 1,320 2 1 1515.2
2008 Q1 1,913 0 0 0.0
2007 Q4 1,086 0 0 0.0
2007 Q3 1,197 0 0 0.0
2007 Q2 1,364 2 0 1466.3
2007 Q1 1,377 0 0 0.0
2006 Q4 1,081 0 0 0.0
2006 Q3 1,362 0 0 0.0
2006 Q2 1,362 0 0 0.0
2006 Q1 1,030 0 0 0.0
2005 Q4 1,129 1 0 885.7
2005 Q3 1,237 0 0 0.0
2005 Q2 1,223 2 0 1635.3
2005 Q1 837 0 0 0.0
2004 Q4 1,277 0 0 0.0
2004 Q3 1,362 0 0 0.0
2004 Q2 1,165 4 0 3433.5
2004 Q1 570 0 0 0.0
2003 Q4 843 0 0 0.0
2003 Q3 1,386 0 0 0.0
2003 Q2 1,173 0 0 0.0
2003 Q1 625 0 0 0.0
2002 Q4 773 0 0 0.0
2002 Q3 1,446 0 0 0.0
2002 Q2 1,340 0 0 0.0
2002 Q1 344 0 0 0.0
2001 Q4 788 0 0 0.0
2001 Q3 1,164 0 0 0.0
2001 Q2 1,525 0 0 0.0
2001 Q1 500 0 0 0.0
2000 Q4 640 0 0 0.0
2000 Q3 764 11 3 14397.9
2000 Q2 946 0 0 0.0
2000 Q1 608 0 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.