Data / Mines / United States Gypsum Company
United States Gypsum Company: 363 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
United States Gypsum Company (MSHA operator ID L00537) operates 8 open mines with 277 employees in Iowa, California, Indiana and other states, mostly gypsum. Since January 1, 2022 MSHA inspectors issued it 363 citations and orders with $130,599 in proposed penalties, and it reported 30 injury or illness cases. Data from MSHA, November 6, 2026.
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- MSHA operator ID
- L00537
- Open mines
- 8
- Employees at open mines
- 277
- States
- Iowa, California, Indiana, Michigan, Oklahoma, Texas, Utah
- Parent company
- Usg Corporation
- Citations and orders since January 1, 2022
- 363
- Significant and substantial
- 57 (15.7%)
- Closure orders
- 3
- High negligence or reckless
- 24
- Proposed penalties
- $130,599
- Amount paid so far
- $109,981
- Inspections
- 138
- Inspector hours on site
- 3,229
- Citations per inspection
- 2.63 (all mines 2.30)
- Accident reports
- 51
- Injury and illness cases
- 30
- Fatalities
- 0
- Latest MSHA record
- October 21, 2026
Open mines of United States Gypsum Company
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Sperry Mine | United States Gypsum Company | Des Moines County, IA | Gypsum | 60 | 107 |
| Sweetwater Quarry | United States Gypsum Company | Nolan County, TX | Gypsum | 47 | 90 |
| Shoals Mine | United States Gypsum Company | Martin County, IN | Gypsum | 49 | 80 |
| Southard Mine And Plant | United States Gypsum Company | Blaine County, OK | Gypsum | 9 | 36 |
| Plaster City Quarry | United States Gypsum Company | Imperial County, CA | Gypsum | 27 | 16 |
| Fort Dodge Quarry | United States Gypsum Company | Webster County, IA | Gypsum | 23 | 13 |
| Jumbo-Jensen Mine | United States Gypsum Company | Sevier County, UT | Gypsum | 8 | 13 |
| Alabaster Plant | United States Gypsum Company | Iosco County, MI | Gypsum | 54 | 8 |
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 | 69 | 13 | $24,398 | 5 |
| 2023 | 84 | 14 | $17,434 | 9 |
| 2024 | 77 | 11 | $23,115 | 6 |
| 2025 | 82 | 14 | $49,633 | 7 |
| 2026 | 51 | 5 | $16,019 | 3 |
Standards cited most at United States Gypsum Company
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 57.14100 | Underground metal and nonmetal mines | 17 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 12 |
| 30 CFR 57.4104 | Underground metal and nonmetal mines | 12 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 12 |
| 30 CFR 57.3200 | Underground metal and nonmetal mines | 10 |
| 30 CFR 47.41 | Hazard communication | 10 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 9 |
| 30 CFR 57.4102 | Underground metal and nonmetal mines | 9 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 8 |
| 30 CFR 57.12004 | Underground metal and nonmetal mines | 8 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 7 |
| 30 CFR 57.14112 | Underground metal and nonmetal mines | 7 |
| 30 CFR 57.20003 | Underground metal and nonmetal mines | 7 |
Injury and illness cases at United States Gypsum Company
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 | 21 |
What the accident reports at United States Gypsum Company describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Hoisting | 17 |
| Handling of materials | 9 |
| Handtools (nonpowered) | 5 |
| Machinery | 4 |
| Other | 3 |
| Slip or fall of person | 3 |
| Powered haulage | 3 |
| Disorders (physical agents) | 3 |
| Inundation | 1 |
| Fire | 1 |
Equipment named in accident reports at United States Gypsum Company
| Equipment | Reports |
|---|---|
| Elevator | 16 |
| Hand tools (not powered) | 5 |
| Front-end loader | 5 |
| Forklift | 3 |
| Trucks | 2 |
| Welding machine | 2 |
| Pneumatic blasting agent loader | 1 |
| Screen | 1 |
| Carriage-mounted drills | 1 |
| Chute | 1 |
Commodities
| Main commodity | Open mines |
|---|---|
| Gypsum | 8 |
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.