Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
River Cement Company dba Buzzi Unicem USA
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL06101
MINE PORTFOLIO
1 of 1 mines and facilities
2025-01-01 – 2026-10-18. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Selma Plant Quarry & Mill2300188 · Active6/8 quarters reported | Jefferson, MOSurface · MSHA: Cement | 0 | 505,217 | 111 | 20 | 418.5 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Selma Plant Quarry & Mill38.17472, -90.34750Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 1 mines listed under this operator were checked; 1 have reports in the available quarters. Totals use current ownership.
Hours worked
505,217reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 92,687 | 0.00 | 182 | 1/1 mines reporting |
| 2025 Q2 | 0 | 83,655 | 0.00 | 160 | 1/1 mines reporting |
| 2025 Q3 | 0 | 80,486 | 0.00 | 152 | 1/1 mines reporting |
| 2025 Q4 | 0 | 79,885 | 0.00 | 151 | 1/1 mines reporting |
| 2026 Q1 | 0 | 85,651 | 0.00 | 167 | 1/1 mines reporting |
| 2026 Q2 | 0 | 82,853 | 0.00 | 161 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
11117 significant & substantial (S&S)
Accident records
200 records classified as fatality
Proposed penalties · USD
65,068.0094 of 111 violations with amounts
On-site inspection hours
418.5020 inspections · 20 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 15 | 1 | 23,018.00 | 4 | 0 | 2 | 6.0 |
| 2025-Q2 | 20 | 3 | 15,488.00 | 3 | 0 | 2 | 113.8 |
| 2025-Q3 | 0 | 0 | — | 5 | 0 | 2 | 3.0 |
| 2025-Q4 | 22 | 5 | 11,691.00 | 1 | 0 | 2 | 104.5 |
| 2026-Q1 | 3 | 0 | 511.00 | 2 | 0 | 4 | 6.5 |
| 2026-Q2 | 35 | 5 | 14,360.00 | 4 | 0 | 6 | 149.3 |
| 2026-Q3 | 0 | 0 | — | 1 | 0 | 1 | 6.0 |
| 2026-Q4 * | 16 | 3 | — | 0 | 0 | 1 | 29.5 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Selma Plant Quarry & Mill · 2300188
56.9315 · S&S · $2,503.00 proposed
- Selma Plant Quarry & Mill · 2300188
Impoundment Spot Inspection · 4.0 on-site hours
- Selma Plant Quarry & Mill · 2300188
Compliance Follow-up Inspection · 10.5 on-site hours
- Selma Plant Quarry & Mill · 2300188
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
EE was driving out a pin with a hammer for the finish mill hydraulic arm when the pin broke loose causing the punch EE was holding to shift pinching EE's left middle finger against the pin eye edge causing a laceration on EE's left ring finger.
- Selma Plant Quarry & Mill · 2300188
62.130(a) · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.17001 · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.14100(b) · $313.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.15001 · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.12018 · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.12032 · $245.00 proposed
- Selma Plant Quarry & Mill · 2300188
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
EE was walking in the crosswalk from the Employee Parking Lot towards the Main Office. When they got to the office sidewalk, they placed their left foot up on the sidewalk and was beginning to take a step up with their right foot when they lost balance and fell backwards striking their head on the crosswalk pavement.
- Selma Plant Quarry & Mill · 2300188
56.4201(a)(1) · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.15001 · S&S · $755.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.12030 · $336.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.14112(b) · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.11001 · $209.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.12018 · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.14112(b) · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.17001 · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.14100(c) · S&S · $2,503.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.11001 · $336.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.11001 · $226.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.17001 · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
56.14115(b) · $151.00 proposed
- Selma Plant Quarry & Mill · 2300188
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
EE was performing inspections when they noticed dust burping from the vent line above the feed bin on the fourth floor of the Preheat Tower. They said they looked up to identify where it was coming from when dust vented out and landed just above their glasses under the brim of their hat. Dust entered their left eye causing irritation. They received antibiotic ointment for the eye.
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.