Mining Incidents

RSP-Sand Plant: 24 MSHA citations Metal/Non-Metal

Ridge Stone Products, Inc. · Surface
Controlled by Greg Darnick
Berlin, WI, Green Lake County, WI  ·  Intermittent
MSHA Mine ID: 4703319

RSP-Sand Plant has $2K in proposed MSHA penalties and $100 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 2002
24
citations
3
significant & substantial
$2,145
proposed penalties
$2,045
paid to date
95% of proposed penalties paid to date, a $100 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
39
inspections on record
373
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: 373 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

RSP-Sand Plant has $2K in proposed MSHA penalties and $100 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$100
outstanding
19 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2022-06-28.
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.
12.5%
significant & substantial
4.2%
high negligence or reckless
12.5%
reasonably likely or greater
29.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 8.3% low, 87.5% moderate, 4.2% 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: 2019-06-10, 7 years ago
0%
of limit-tested samples over the exposure limit
3
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
  • Quartz, respirable, >1% Qtz1
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2019-06-10 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2009-12-02 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-08-07 Quartz, respirable, >1% Qtz 0.22 1.74 0.13 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. Ridge Stone Products Inc 2002 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 1
2024 2
2023 2
2022 1
2021 1
2020 2
2019 2
2018 2
2017 2
2016 2
2015 1
2014 2
2013 1
2012 1
2011 1
2010 1
2009 1
2008 1
2007 1
2006 1
2005 1
2004 1
2003 1
2002 1
Source: MSHA quarterly employment and production, updated weekly.

RSP-Sand Plant sits in Green Lake County, Wisconsin, where the Census mining category is 0.8% 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.
Green Lake County, Wisconsin · Population 19,165
0.8%
Mining share of county employment
$66,917
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 3 0 0 0.0
2026 Q1 2 0 0 0.0
2025 Q4 15 0 0 0.0
2025 Q3 75 3 0 40000.0
2025 Q2 60 0 0 0.0
2025 Q1 20 0 0 0.0
2024 Q4 20 0 0 0.0
2024 Q3 200 0 0 0.0
Show 88 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 100 2 0 20000.0
2024 Q1 120 0 0 0.0
2023 Q4 196 0 0 0.0
2023 Q3 210 0 0 0.0
2023 Q2 130 0 0 0.0
2023 Q1 100 0 0 0.0
2022 Q4 153 0 0 0.0
2022 Q3 340 0 0 0.0
2022 Q2 154 1 0 6493.5
2022 Q1 40 0 0 0.0
2021 Q4 297 0 0 0.0
2021 Q3 362 0 0 0.0
2021 Q2 213 0 0 0.0
2021 Q1 112 0 0 0.0
2020 Q4 214 0 0 0.0
2020 Q3 221 6 2 27149.3
2020 Q2 406 0 0 0.0
2020 Q1 77 0 0 0.0
2019 Q4 260 0 0 0.0
2019 Q3 434 0 0 0.0
2019 Q2 238 0 0 0.0
2019 Q1 89 0 0 0.0
2018 Q4 180 0 0 0.0
2018 Q3 43 0 0 0.0
2018 Q2 224 0 0 0.0
2018 Q1 28 0 0 0.0
2017 Q4 289 0 0 0.0
2017 Q3 177 0 0 0.0
2017 Q2 160 0 0 0.0
2017 Q1 170 0 0 0.0
2016 Q4 20 0 0 0.0
2016 Q3 186 0 0 0.0
2016 Q2 96 0 0 0.0
2016 Q1 10 0 0 0.0
2015 Q4 20 0 0 0.0
2015 Q3 20 0 0 0.0
2015 Q2 219 0 0 0.0
2015 Q1 73 0 0 0.0
2014 Q4 102 0 0 0.0
2014 Q3 239 2 1 8368.2
2014 Q2 150 0 0 0.0
2014 Q1 30 0 0 0.0
2013 Q4 167 0 0 0.0
2013 Q3 248 0 0 0.0
2013 Q2 142 0 0 0.0
2013 Q1 31 0 0 0.0
2012 Q4 100 1 0 10000.0
2012 Q3 20 0 0 0.0
2012 Q2 176 0 0 0.0
2012 Q1 0 0 0
2011 Q4 160 0 0 0.0
2011 Q3 92 1 0 10869.6
2011 Q2 44 1 0 22727.3
2011 Q1 0 0 0
2010 Q4 90 0 0 0.0
2010 Q3 76 0 0 0.0
2010 Q2 186 0 0 0.0
2010 Q1 0 0 0
2009 Q4 72 0 0 0.0
2009 Q3 76 0 0 0.0
2009 Q2 33 0 0 0.0
2009 Q1 0 0 0
2008 Q4 30 0 0 0.0
2008 Q3 130 0 0 0.0
2008 Q2 0 0 0
2008 Q1 5 0 0 0.0
2007 Q4 121 0 0 0.0
2007 Q3 99 2 0 20202.0
2007 Q2 108 0 0 0.0
2007 Q1 21 0 0 0.0
2006 Q4 192 0 0 0.0
2006 Q3 54 0 0 0.0
2006 Q2 80 0 0 0.0
2006 Q1 67 0 0 0.0
2005 Q4 78 0 0 0.0
2005 Q3 76 0 0 0.0
2005 Q2 192 0 0 0.0
2005 Q1 96 0 0 0.0
2004 Q4 175 0 0 0.0
2004 Q3 120 0 0 0.0
2004 Q2 106 0 0 0.0
2004 Q1 0 0 0
2003 Q4 124 0 0 0.0
2003 Q3 100 0 0 0.0
2003 Q2 308 0 0 0.0
2003 Q1 0 0 0
2002 Q4 191 0 0 0.0
2002 Q3 235 3 0 12766.0

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.