Silverlake Gravel Metal/Non-Metal
Silverlake Gravel
· Surface
Controlled by
John Grosz Sr; John Grosz Jr
Clark,
Clark County,
SD
·
Abandoned
MSHA Mine ID: 3901611
Silverlake Gravel has $2K 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 2015
21
citations
4
significant & substantial
$1,843
proposed penalties
$1,843
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
9
inspections on record
105
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: 105 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Silverlake Gravel has $2K 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.$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
13 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2021-05-19.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
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 |
|---|---|---|---|---|
| 2025 Q3 | 144 | 0 | 0 | 0.0 |
| 2019 Q4 | 108 | 0 | 0 | 0.0 |
| 2019 Q3 | 240 | 0 | 0 | 0.0 |
| 2019 Q2 | 135 | 0 | 0 | 0.0 |
| 2019 Q1 | 0 | 0 | 0 | |
| 2018 Q4 | 96 | 0 | 0 | 0.0 |
| 2018 Q3 | 0 | 7 | 3 | |
| 2018 Q2 | 0 | 0 | 0 |
Show 4 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2018 Q1 | 0 | 0 | 0 | |
| 2017 Q3 | 155 | 1 | 0 | 6451.6 |
| 2017 Q2 | 115 | 0 | 0 | 0.0 |
| 2016 Q2 | 200 | 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.
For insurers, brokers, and safety consultants
The full compliance file on Silverlake Gravel
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.