ACTIVE / CONTROLLER PORTFOLIO

Stephanie Prosser; Stacy Walsh

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA CONTROLLER ID0109545

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Nokomis Quarry Co1100149 · Active6/8 quarters reportedMontgomery, ILSurface · MSHA: Crushed, Broken Limestone NEC063,23611154.0

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

11

2 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q34
  4. 2025 Q43
  5. 2026 Q10
  6. 2026 Q24
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

1

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

1,997.00

11 of 11 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2—
  3. 2025 Q3882
  4. 2025 Q4511
  5. 2026 Q1—
  6. 2026 Q2604
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

54.00

4 inspections · 4 with hours

  1. 2025 Q11.50
  2. 2025 Q2—
  3. 2025 Q317.50
  4. 2025 Q415.50
  5. 2026 Q1—
  6. 2026 Q219.50
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—1011.5
2025-Q200—000—
2025-Q340882.0000117.5
2025-Q431511.0000115.5
2026-Q100—000—
2026-Q241604.0000119.5
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. violation5015104
    Nokomis Quarry Co · 1100149

    47.41(a)(1) · $151.00 proposed

  2. violation5015103
    Nokomis Quarry Co · 1100149

    56.9300(b) · S&S · $151.00 proposed

  3. inspectionF007B95
    Nokomis Quarry Co · 1100149

    Regular Safety and Health Inspection · 19.5 on-site hours

  4. violation5015102
    Nokomis Quarry Co · 1100149

    56.14107(a) · $151.00 proposed

  5. violation5015101
    Nokomis Quarry Co · 1100149

    56.11002 · $151.00 proposed

  6. inspectionF007B82
    Nokomis Quarry Co · 1100149

    Regular Safety and Health Inspection · 15.5 on-site hours

  7. violation5015035
    Nokomis Quarry Co · 1100149

    56.14107(a) · $151.00 proposed

  8. violation5015034
    Nokomis Quarry Co · 1100149

    56.14107(a) · S&S · $209.00 proposed

  9. violation5015033
    Nokomis Quarry Co · 1100149

    50.30(a) · $151.00 proposed

  10. violation9788389
    Nokomis Quarry Co · 1100149

    56.4200(a)(1) · $151.00 proposed

  11. violation9788388
    Nokomis Quarry Co · 1100149

    56.14107(a) · $209.00 proposed

  12. violation9788387
    Nokomis Quarry Co · 1100149

    56.20003(a) · $209.00 proposed

  13. violation9788386
    Nokomis Quarry Co · 1100149

    56.14107(a) · $313.00 proposed

  14. inspectionF00BE03
    Nokomis Quarry Co · 1100149

    Regular Safety and Health Inspection · 17.5 on-site hours

  15. inspectionF00BDF9
    Nokomis Quarry Co · 1100149

    Non-Chargeable Accident Investigation · 1.5 on-site hours

  16. accident220250830027
    Nokomis Quarry Co · 1100149

    SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    While detrashing the yard, the employee slipped on a mud puddle and fell backwards. Employee felt pain and stiffness in left hamstring.

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.

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 operator.

Relationships reflect the selected mine status and current MSHA controller/operator fields.