Data / Mines / Specialty Minerals Inc
Specialty Minerals Inc: 4 open mines, 689 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Specialty Minerals Inc (MSHA operator ID L12908) operates 4 open mines with 250 employees in California, Connecticut, Massachusetts and other states, mostly crushed, broken limestone. Since January 1, 2022 MSHA inspectors issued it 689 citations and orders with $294,642 in proposed penalties, and it reported 31 injury or illness cases. Data from MSHA, November 6, 2026.
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- MSHA operator ID
- L12908
- Open mines
- 4
- Employees at open mines
- 250
- States
- California, Connecticut, Massachusetts, Missouri
- Parent company
- Minerals Technologies Inc
- Citations and orders since January 1, 2022
- 689
- Significant and substantial
- 104 (15.1%)
- Closure orders
- 2
- High negligence or reckless
- 19
- Proposed penalties
- $294,642
- Amount paid so far
- $279,218
- Inspections
- 103
- Inspector hours on site
- 2,416
- Citations per inspection
- 6.69 (all mines 2.30)
- Accident reports
- 34
- Injury and illness cases
- 31
- Fatalities
- 0
- Latest MSHA record
- September 2, 2026
Open mines of Specialty Minerals Inc
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Adams | Specialty Minerals Inc | Berkshire County, MA | Crushed, broken limestone | 130 | 332 |
| Canaan | Specialty Minerals Inc | Litchfield County, CT | Crushed, broken limestone | 33 | 212 |
| Lucerne Valley Plant and Quarry | Specialty Minerals Inc | San Bernardino County, CA | Crushed, broken limestone | 86 | 107 |
| Specialty Minerals Inc. | Specialty Minerals Inc | Ste Genevieve County, MO | Lime | 1 | 38 |
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 | 141 | 21 | $62,236 | 8 |
| 2023 | 196 | 24 | $94,600 | 7 |
| 2024 | 66 | 9 | $36,418 | 8 |
| 2025 | 185 | 29 | $61,654 | 3 |
| 2026 | 101 | 21 | $39,734 | 5 |
Standards cited most at Specialty Minerals Inc
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 56.20003 | Surface metal and nonmetal mines | 92 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 66 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 52 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 51 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 50 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 28 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 27 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 16 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 13 |
| 30 CFR 47.44 | Hazard communication | 9 |
| 30 CFR 56.16001 | Surface metal and nonmetal mines | 9 |
Injury and illness cases at Specialty Minerals Inc
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 21 |
| No lost time, or an occupational illness | 10 |
What the accident reports at Specialty Minerals Inc describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 13 |
| Slip or fall of person | 8 |
| Powered haulage | 4 |
| Machinery | 3 |
| Handtools (nonpowered) | 2 |
| Other | 1 |
| Entrapment | 1 |
| Nonpowered haulage | 1 |
| Striking or bumping | 1 |
Equipment named in accident reports at Specialty Minerals Inc
| Equipment | Reports |
|---|---|
| Bulldozer | 2 |
| Conveyor | 2 |
| Ore haulage trucks - off highway trucks | 2 |
| Forklift | 2 |
| Hand tools (not powered) | 2 |
| Mine car | 1 |
| Front-end loader | 1 |
| Trucks | 1 |
| Milling machinery | 1 |
| Machine | 1 |
Commodities
| Main commodity | Open mines |
|---|---|
| Crushed, broken limestone | 3 |
| Lime | 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.