# River Cement Company dba Buzzi Unicem USA, Selma Plant Quarry & Mill (Jefferson County, MO): MSHA citation under 56.5005(a) (2026-10-20)

**Safety Need Score:** 50/100

| Field | Value |
|---|---|
| Company | River Cement Company dba Buzzi Unicem USA |
| Mine | Selma Plant Quarry & Mill (ID 2300188) |
| Location | Jefferson County, MO |
| Commodity | Cement |
| Mine type | Surface |
| Employees | 150 |
| Issued | 2026-10-20 |
| Action | Citation |
| Standard | 56.5005(a) |
| Significant & substantial | Yes |
| Negligence | Mod |
| Proposed penalty | Not yet assessed |
| Contested | No |

## Why this score
- Significant and substantial (S&S).
- Issued in the last 30 days.

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=2300188). 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.