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O-N Minerals - Calcite Operation safety activity

MSHA violations, accident reports and inspections.

2025-01-01 – 2026-10-28Database snapshot · 2026-10-28

Safety activity

  1. Identification of power switches.

    violationRecord 6553565

    30 CFR 56.12018 · $267.00 proposed penalty

  2. Annual refresher training.

    violationRecord 6553564

    30 CFR 46.8 · $168.00 proposed penalty

  3. Protection of gas cylinder valves.

    violationRecord 6553563

    30 CFR 56.16006 · $267.00 proposed penalty

  4. Inspection and cover plates.

    violationRecord 6553562

    30 CFR 56.12032 · $267.00 proposed penalty

  5. Protection for openings around travelways.

    violationRecord 6553561

    30 CFR 56.11012 · $151.00 proposed penalty

  6. Slip or fall of person

    accidentRecord 220253560014

    No dys awy frm wrk,no rstr act

    Accident narrative

    EE slipped down an icy stair way and landed on their arm, resulting in a dislocated shoulder.

  7. Falling/sliding/rolling materials

    accidentRecord 220253390048

    Days restricted activity only

    Accident narrative

    EE was on the 5th floor of the mill washing when a rock (4" + size) came down from the 6th floor striking EE on the Left Elbow

  8. Handling of materials

    accidentRecord 220253170508

    No dys awy frm wrk,no rstr act

    Accident narrative

    ee was removing idlers from conveyor for a belt change. when they went to move the idler to the floor, their finger got pinched/rolled in between the cans causing a laceration / split to right pinky finger.

  9. Impoundment Spot Inspection

    inspectionRecord F01BBEB

    1.8 on-site hours reported

  10. Handling of materials

    accidentRecord 220260090003

    Dys awy frm wrk & restrctd act

    Accident narrative

    ee was throwing scrap steel into the skip when EE reaggravated a strain in EE's shoulder that occurred the day before.

  11. Nonpowered haulage

    accidentRecord 220252180014

    Days restricted activity only

    Accident narrative

    employee was pushing a welding cart across the shop. one of the wheels fell into a low spot/crack in the concrete causing the cart to tilt. Employee reactively reached out with EE's arm to try to catch it in case it fell and felt a strain in EE's shoulder. cart is appx 100 lbs.

  12. Slip or fall of person

    accidentRecord 220251550004

    Days restricted activity only

    Accident narrative

    EE was pulling the fuel hose out of the fuel truck, as EE was pulling the hose out of the fuel truck, EE was walking backwards pulling the hose and EE tripped on a couple of large rocks causing EE to fall and twist EE's ankle.

  13. Handling of materials

    accidentRecord 220251550003

    Days restricted activity only

    Accident narrative

    EE was trying to lift new bearing housing into place on take up. EE said EE was in an awkward position and said EE hurt EE's left wrist.

  14. Brakes.

    violationRecord 8842718

    30 CFR 56.14101(a)(2) · $151.00 proposed penalty

  15. Brakes.

    violationRecord 8842717

    30 CFR 56.14101(a)(2) · $151.00 proposed penalty

  16. Horns and backup alarms.

    violationRecord 8842716

    30 CFR 56.14132(b)(1) · $151.00 proposed penalty

  17. Identification of power switches.

    violationRecord 8842715

    30 CFR 56.12018 · $151.00 proposed penalty

  18. Moving machine parts.

    violationRecord 8842714

    30 CFR 56.14107(a) · Significant and substantial (S&S) · $642.00 proposed penalty

  19. Inspection and cover plates.

    violationRecord 8842713

    30 CFR 56.12032 · $151.00 proposed penalty

  20. Parking procedures for unattended equipment.

    violationRecord 8842712

    30 CFR 56.14207 · $151.00 proposed penalty

  21. Protection of gas cylinder valves.

    violationRecord 8842711

    30 CFR 56.16006 · $151.00 proposed penalty

  22. Construction and maintenance of guards.

    violationRecord 8842696

    30 CFR 56.14112(b) · $883.00 proposed penalty

  23. Inspection.

    violationRecord 9697419

    30 CFR 56.4201(a)(2) · $193.00 proposed penalty

  24. Requirement for container labels.

    violationRecord 8842695

    30 CFR 47.41(a) · $193.00 proposed penalty

  25. Requirement for container labels.

    violationRecord 8842694

    30 CFR 47.41(a) · $193.00 proposed penalty

Sources and definitions

MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).

Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.

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.