Data / Mines / American Colloid Company Mineral Group
American Colloid Company Mineral Group: 208 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
American Colloid Company Mineral Group (MSHA operator ID L00006) operates 8 open mines with 247 employees in Wyoming, Alabama, North Dakota and other states, mostly bentonite. Since January 1, 2022 MSHA inspectors issued it 208 citations and orders with $68,089 in proposed penalties, and it reported 38 injury or illness cases. Data from MSHA, November 6, 2026.
The request: Watch American Colloid Company Mineral Group (MSHA operator ID L00006): each new citation, each accident report and each new mine. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA operator ID
- L00006
- Open mines
- 8
- Employees at open mines
- 247
- States
- Wyoming, Alabama, North Dakota, South Dakota
- Parent company
- Minerals Technologies Inc
- Citations and orders since January 1, 2022
- 208
- Significant and substantial
- 31 (14.9%)
- Closure orders
- 2
- High negligence or reckless
- 8
- Proposed penalties
- $68,089
- Amount paid so far
- $61,996
- Inspections
- 105
- Inspector hours on site
- 1,192
- Citations per inspection
- 1.98 (all mines 2.30)
- Accident reports
- 38
- Injury and illness cases
- 38
- Fatalities
- 0
- Latest MSHA record
- October 28, 2026
Open mines of American Colloid Company Mineral Group
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Lovell Mill | American Colloid Company Mineral Group | Big Horn County, WY | Bentonite | 44 | 52 |
| Gascoyne Mine & Mill | American Colloid Company Mineral Group | Bowman County, ND | Leonardite | 11 | 50 |
| Belle/Colony Mine | American Colloid Company Mineral Group | Crook County, WY | Bentonite | 77 | 41 |
| Colony West Mill | American Colloid Company Mineral Group | Crook County, WY | Bentonite | 30 | 23 |
| Colony East Mill | American Colloid Company Mineral Group | Crook County, WY | Bentonite | 34 | 20 |
| Sandy Ridge Mill | American Colloid Company Mineral Group | Lowndes County, AL | Common clays | 32 | 11 |
| Belle Fourche Mill | American Colloid Company Mineral Group | Butte County, SD | Bentonite | 5 | 11 |
| Yellowtail Mine | American Colloid Company Mineral Group | Big Horn County, WY | Bentonite | 14 | 0 |
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 | 47 | 6 | $12,540 | 10 |
| 2023 | 30 | 7 | $10,912 | 13 |
| 2024 | 42 | 5 | $17,491 | 7 |
| 2025 | 56 | 8 | $12,903 | 7 |
| 2026 | 33 | 5 | $14,243 | 1 |
Standards cited most at American Colloid Company Mineral Group
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 56.14100 | Surface metal and nonmetal mines | 24 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.4104 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 4 |
| 30 CFR 47.41 | Hazard communication | 4 |
Injury and illness cases at American Colloid Company Mineral Group
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 26 |
| No lost time, or an occupational illness | 12 |
What the accident reports at American Colloid Company Mineral Group describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Powered haulage | 12 |
| Slip or fall of person | 8 |
| Handling of materials | 5 |
| Handtools (nonpowered) | 4 |
| Machinery | 3 |
| Disorders (repeated trauma) | 1 |
| Electrical | 1 |
| Other | 1 |
| Exploding vessels under pressure | 1 |
| Stepping or kneeling on object | 1 |
Equipment named in accident reports at American Colloid Company Mineral Group
| Equipment | Reports |
|---|---|
| Scraper loader | 12 |
| Hand tools (not powered) | 4 |
| Road grader | 3 |
| Front-end loader | 2 |
| Crane | 1 |
| Bulldozer | 1 |
| Machine | 1 |
| Trucks | 1 |
| Pump | 1 |
Commodities
| Main commodity | Open mines |
|---|---|
| Bentonite | 6 |
| Common clays | 1 |
| Leonardite | 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.