Sylvania Minerals LLC operator
Controlled by
Great Lakes Aggregates LLC
MSHA operator ID: 0051837
- Fatalities
- 0
- Total incidents
- 26
- Mines on record
- 1
- Years on record
- 2004–2026
Compliance record
MSHA citations since 2004
113
citations
20
significant & substantial
$14,771
proposed penalties
$14,571
paid to date
99% of proposed penalties paid to date, a $200 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2004
77
inspections on record
2,007
inspection hours
5.6
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.113 citations across 2,007 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$15K
proposed penalties
$15K
current assessed
$15K
paid to date
$0
outstanding
108 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2026-01-13.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 9 non-fatal
- MACHINERY 6 non-fatal
- SLIP OR FALL OF PERSON 5 non-fatal
- HANDTOOLS (NONPOWERED) 2 non-fatal
- OTHER 2 non-fatal
- ALL OTHER OCCUPATIONAL ILLNESSES 1 non-fatal
Incident timeline
2026
2
2025
1
2024
4
2023
1
2022
1
2019
1
2015
1
2013
1
2012
2
2009
2
2007
3
2006
2
2005
2
2004
3
Mines on record
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For insurers, brokers, and safety consultants
The full compliance file on Sylvania Minerals LLC
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.