Data / Mines / Michigan / Nonmetal mines
Nonmetal mineral mines in Michigan: 9 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 9 open nonmetal mineral mines in Michigan, run by 9 operators and employing 161 people. Since January 1, 2022 its inspectors issued 305 citations and orders there with $72,629 in proposed penalties, and operators reported 13 injury or illness cases. The operators with the most open mines are Detroit Salt Co LLC; Nugent Sand Company Inc; Csi Sands NE LTD.. Data from MSHA, November 6, 2026.
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- Open mines
- 9
- Operators
- 9
- Employees
- 161
- Active
- 5
- Intermittent
- 4
- Mines run by individuals, counted and not listed
- 1
- Citations and orders since January 1, 2022
- 305
- Significant and substantial
- 34 (11.1%)
- Closure orders
- 0
- High negligence or reckless
- 8
- Proposed penalties
- $72,629
- Amount paid so far
- $68,880
- Inspections
- 115
- Inspector hours on site
- 2,114
- Citations per inspection
- 2.65 (all mines 2.30)
- Accident reports
- 13
- Injury and illness cases
- 13
- Fatalities
- 0
- Latest MSHA record
- November 4, 2026
Operators with the most open mines in Michigan
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Detroit Salt Co LLC | 1 | 41 | 149 | $34,879 | 5 |
| Nugent Sand Company Inc | 1 | 1 | 37 | $13,267 | 1 |
| Csi Sands NE LTD. | 1 | 16 | 36 | $7,919 | 4 |
| U.S. Silica Company, LLC | 1 | 12 | 34 | $8,894 | 0 |
| Keystone Minerals LLC | 1 | 2 | 9 | $1,355 | 0 |
| United States Gypsum Company | 1 | 54 | 8 | $1,106 | 3 |
| Gold Bond Building Products, LLC. | 1 | 31 | 4 | $702 | 0 |
| Top Grade Aggregates, LLC | 1 | 3 | 4 | $698 | 0 |
Operators with the most citations in Michigan
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Detroit Salt Co LLC | 1 | 41 | 149 | $34,879 | 5 |
| Nugent Sand Company Inc | 1 | 1 | 37 | $13,267 | 1 |
| Csi Sands NE LTD. | 1 | 16 | 36 | $7,919 | 4 |
| U.S. Silica Company, LLC | 1 | 12 | 34 | $8,894 | 0 |
| Keystone Minerals LLC | 1 | 2 | 9 | $1,355 | 0 |
| United States Gypsum Company | 1 | 54 | 8 | $1,106 | 3 |
| Gold Bond Building Products, LLC. | 1 | 31 | 4 | $702 | 0 |
| Top Grade Aggregates, LLC | 1 | 3 | 4 | $698 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Detroit Salt Mine | Detroit Salt Co LLC | Wayne County, MI | Salt | 41 | 149 |
| Nugent Sand Plant #2 | Nugent Sand Company Inc | Muskegon County, MI | Sand, industrial | 1 | 37 |
| Pointe North | Csi Sands NE LTD. | Mackinac County, MI | Sand, industrial | 16 | 36 |
| Rockwood Plant | U.S. Silica Company, LLC | Wayne County, MI | Sand, industrial | 12 | 34 |
| Keystone Minerals | Keystone Minerals LLC | Iosco County, MI | Gypsum | 2 | 9 |
| Alabaster Plant | United States Gypsum Company | Iosco County, MI | Gypsum | 54 | 8 |
| Tawas Quarry | Gold Bond Building Products, LLC. | Iosco County, MI | Gypsum | 31 | 4 |
| Top Grade Aggregates- Wexford Operation | Top Grade Aggregates, LLC | Wexford County, MI | Sand, industrial | 3 | 4 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Sand, industrial | 5 | 55.6% |
| Gypsum | 3 | 33.3% |
| Salt | 1 | 11.1% |
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 | 84 | 11 | $23,600 | 2 |
| 2023 | 66 | 8 | $22,011 | 3 |
| 2024 | 54 | 3 | $10,956 | 4 |
| 2025 | 50 | 6 | $8,694 | 3 |
| 2026 | 51 | 6 | $7,368 | 1 |
Standards cited most at nonmetal mineral mines in Michigan
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 | 27 |
| 30 CFR 57.12032 | Underground metal and nonmetal mines | 17 |
| 30 CFR 57.14112 | Underground metal and nonmetal mines | 12 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 12 |
| 30 CFR 57.12018 | Underground metal and nonmetal mines | 10 |
| 30 CFR 57.14101 | Underground metal and nonmetal mines | 10 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 9 |
| 30 CFR 57.12004 | Underground metal and nonmetal mines | 9 |
| 30 CFR 57.4201 | Underground metal and nonmetal mines | 8 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 6 |
| 30 CFR 57.14107 | Underground metal and nonmetal mines | 6 |
Injury and illness cases at nonmetal mineral mines in Michigan
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 9 |
| No lost time, or an occupational illness | 4 |
What the accident reports at nonmetal mineral mines in Michigan describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handtools (nonpowered) | 4 |
| Slip or fall of person | 3 |
| Handling of materials | 3 |
| Other | 1 |
| Powered haulage | 1 |
| Electrical | 1 |
Equipment named in accident reports at nonmetal mineral mines in Michigan
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 4 |
| Forklift | 2 |
| Ore haulage trucks - off highway trucks | 1 |
| Mancar | 1 |
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.