# Sovereign Mining CO, Amrize Coleman Quarry (Johnston County, OK): MSHA citation under 56.3200 (2026-05-12)

**Safety Need Score:** 20/100

| Field | Value |
|---|---|
| Company | Sovereign Mining CO |
| Mine | Amrize Coleman Quarry (ID 3402233) |
| Location | Johnston County, OK |
| Commodity | Crushed, Broken Limestone NEC |
| Mine type | Surface |
| Employees | 7 |
| Issued | 2026-05-12 |
| Action | Citation |
| Standard | 56.3200 |
| Significant & substantial | No |
| Negligence | Mod |
| Proposed penalty | $151 |
| Contested | No |

## Why this score


Source: US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only (https://www.msha.gov/data-and-reports/mine-data-retrieval-system?mineId=3402233). Last refreshed: 2026-11-04T01:31:23.849Z.
Data comes from MSHA Open Government Data files, which MSHA updates weekly; citations can appear days to weeks after issue, and proposed penalties are often blank until assessed months later. Citations can be modified, vacated or contested; confirm on the MSHA Mine Data Retrieval System. Company violators only; individual agents are excluded. Not a consumer report and may not be used for FCRA purposes. Informational only; not legal or safety advice.