Data / Mines / Michigan / Sylvania Minerals
Sylvania Minerals: 13 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Sylvania Minerals is an active crushed, broken limestone surface mine in Monroe County, Michigan, operated by Sylvania Minerals LLC with 49 employees on MSHA's record (mine ID 2002964). Since January 1, 2022 MSHA inspectors issued 13 citations and orders there with $2,088 in proposed penalties, and 9 accident reports were filed there, with 9 injury or illness cases.
The request: Watch Sylvania Minerals (MSHA mine ID 2002964) in Monroe County, Michigan: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 2002964
- Status
- Active since January 1, 2012
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Monroe County, Michigan
- Nearest town
- Berlin Twp.
- Operator
- Sylvania Minerals LLC
- Parent company
- Great Lakes Aggregates LLC
- Employees
- 49
- MSHA field office
- Lansing MI Field Office
- Citations and orders since January 1, 2022
- 13
- Significant and substantial
- 2 (15.4%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $2,088
- Amount paid so far
- $2,088
- Inspections
- 22
- Inspector hours on site
- 295
- Citations per inspection
- 0.59 (all mines 2.30)
- Accident reports
- 9
- Injury and illness cases
- 9
- Fatalities
- 0
- Latest MSHA record
- July 21, 2026
- Citations issued to contractors here
- 16 ($3,326 proposed)
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 1 | 1 | $296 | 1 |
| 2023 | 0 | 0 | $0 | 1 |
| 2024 | 5 | 0 | $735 | 4 |
| 2025 | 4 | 1 | $604 | 1 |
| 2026 | 3 | 0 | $453 | 2 |
Standards cited most at Sylvania Minerals
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4501 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.3 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12016 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Sylvania Minerals
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
| No lost time, or an occupational illness | 8 |
What the accident reports at Sylvania Minerals describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 3 |
| Handtools (nonpowered) | 2 |
| Slip or fall of person | 1 |
| Disorders (physical agents) | 1 |
| All other occupational illnesses | 1 |
| Machinery | 1 |
Equipment named in accident reports at Sylvania Minerals
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 2 |
| Trucks | 1 |
| Hand tools (powered) | 1 |
Other open mines in Monroe County, Michigan
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Ottawa Lake Quarry | Michigan Paving and Materials Company | Monroe County, MI | Crushed, broken limestone | 32 | 9 |
| Amrize Dundee Quarry | Amrize Great Lakes Inc. | Monroe County, MI | Construction sand and gravel | 7 | 8 |
| Denniston Quarry | Michigan Paving and Materials Company | Monroe County, MI | Crushed, broken limestone | 27 | 6 |
| Maybee Quarry | Michigan Paving and Materials Company | Monroe County, MI | Crushed, broken limestone | 23 | 6 |
| Newport | Michigan Paving and Materials Company | Monroe County, MI | Construction sand and gravel | 20 | 2 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.