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: 263 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
DREDGE ROHR 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
53 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2016-07-13.
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.
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: 2010-04-07, 16 years ago
1
samples
0
limit-tested
Most sampled contaminants
Respirable dust, <.1mg1
Show the individual readings (1)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2010-04-07
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2020
0
2018
0
2017
0
2016
1
2015
2
2014
2
2013
2
2012
2
2011
2
2010
2
2009
3
2008
2
2007
2
2006
2
2005
2
2004
1
2003
1
2002
1
2001
1
2000
3
Source: MSHA quarterly employment and production, updated weekly.
DREDGE ROHR sits in Rock County, Wisconsin, 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.
Rock County, Wisconsin · Population 163,944
0.1%
Mining share of county employment
$74,390
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
2020 Q3
0
0
0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
0
0
0
2017 Q3
0
0
0
2017 Q2
0
0
0
2016 Q4
150
0
0
0.0
2016 Q3
376
4
1
10638.3
Show 66 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2016 Q2
198
0
0
0.0
2016 Q1
0
0
0
2015 Q4
122
0
0
0.0
2015 Q3
204
3
0
14705.9
2015 Q2
403
0
0
0.0
2015 Q1
21
0
0
0.0
2014 Q4
431
0
0
0.0
2014 Q3
329
0
0
0.0
2014 Q2
142
2
1
14084.5
2014 Q1
0
0
0
2013 Q4
354
0
0
0.0
2013 Q3
464
0
0
0.0
2013 Q2
174
0
0
0.0
2013 Q1
1
0
0
0.0
2012 Q4
489
4
0
8180.0
2012 Q3
304
0
0
0.0
2012 Q2
215
5
2
23255.8
2012 Q1
1
0
0
0.0
2011 Q4
53
0
0
0.0
2011 Q3
1
0
0
0.0
2011 Q2
13
6
0
461538.5
2011 Q1
1
0
0
0.0
2010 Q4
237
0
0
0.0
2010 Q3
778
0
0
0.0
2010 Q2
311
5
0
16077.2
2010 Q1
1
0
0
0.0
2009 Q4
660
0
0
0.0
2009 Q3
762
0
0
0.0
2009 Q2
502
0
0
0.0
2009 Q1
1
0
0
0.0
2008 Q4
464
4
1
8620.7
2008 Q3
625
0
0
0.0
2008 Q2
389
0
0
0.0
2008 Q1
1
0
0
0.0
2007 Q4
440
1
0
2272.7
2007 Q3
625
0
0
0.0
2007 Q2
402
0
0
0.0
2007 Q1
98
0
0
0.0
2006 Q4
459
0
0
0.0
2006 Q3
507
0
0
0.0
2006 Q2
614
0
0
0.0
2006 Q1
1
0
0
0.0
2005 Q4
485
1
0
2061.9
2005 Q3
689
0
0
0.0
2005 Q2
376
6
1
15957.4
2005 Q1
0
0
0
2004 Q4
587
0
0
0.0
2004 Q3
73
0
0
0.0
2004 Q2
170
4
1
23529.4
2004 Q1
0
0
0
2003 Q4
336
0
0
0.0
2003 Q3
663
0
0
0.0
2003 Q2
490
0
0
0.0
2003 Q1
54
0
0
0.0
2002 Q4
401
3
1
7481.3
2002 Q3
521
0
0
0.0
2002 Q2
288
0
0
0.0
2002 Q1
0
0
0
2001 Q4
260
1
0
3846.2
2001 Q3
367
0
0
0.0
2001 Q2
393
3
2
7633.6
2001 Q1
0
0
0
2000 Q4
535
0
0
0.0
2000 Q3
572
0
0
0.0
2000 Q2
733
1
1
1364.3
2000 Q1
207
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2008 · 1 incident
September 18, 2008WI · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS