ACTIVE / CONTROLLER PORTFOLIO

Rachel Schuler

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

MSHA CONTROLLER ID0184121

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
HEARTLAND QUARRIES PIT # 24104908 · Active6/8 quarters reportedWilliamson, TXSurface · MSHA: Dimension Limestone060,17928144.5

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

28

7 significant & substantial (S&S)

  1. 2025 Q14
  2. 2025 Q23
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q13
  6. 2026 Q218
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

1

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

19,791.00

28 of 28 violations with amounts

  1. 2025 Q1604
  2. 2025 Q2453
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1453
  6. 2026 Q218,281
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

44.50

6 inspections · 6 with hours

  1. 2025 Q17.50
  2. 2025 Q213.00
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q19.50
  6. 2026 Q214.50
  7. 2026 Q30.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q140604.000017.5
2025-Q231453.0000113.0
2025-Q300—000—
2025-Q400—000—
2026-Q130453.000029.5
2026-Q218618,281.0000114.5
2026-Q300—1010.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. accident220262380001
    HEARTLAND QUARRIES PIT # 2 · 4104908

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was removing motor/gear box from conveyor. The motor was not properly supported and fell as EE removed the pulley from underneath.

  2. inspectionF03829F
    HEARTLAND QUARRIES PIT # 2 · 4104908

    Compliance Follow-up Inspection · 0.0 on-site hours

  3. violation5179416
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.18002(a) · S&S · $4,749.00 proposed

  4. violation5179415
    HEARTLAND QUARRIES PIT # 2 · 4104908

    46.5(a) · S&S · $1,590.00 proposed

  5. violation5179414
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.14206(b) · $165.00 proposed

  6. violation5179413
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.9301 · S&S · $2,712.00 proposed

  7. violation5179412
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.14100(c) · S&S · $2,712.00 proposed

  8. violation5179411
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.4201(a)(1) · $245.00 proposed

  9. violation5179410
    HEARTLAND QUARRIES PIT # 2 · 4104908

    47.42(a) · $165.00 proposed

  10. violation5179409
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.12002 · $549.00 proposed

  11. violation5179408
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.4201(a)(2) · $245.00 proposed

  12. violation5179407
    HEARTLAND QUARRIES PIT # 2 · 4104908

    47.44(b) · $165.00 proposed

  13. violation5179406
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.16006 · $165.00 proposed

  14. violation5179405
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.4101 · $245.00 proposed

  15. violation5179404
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.12004 · $165.00 proposed

  16. violation5179403
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.12032 · S&S · $2,712.00 proposed

  17. violation5179402
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.11003 · $165.00 proposed

  18. violation5179401
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.12032 · S&S · $818.00 proposed

  19. violation5173600
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.12032 · $549.00 proposed

  20. violation5173599
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.12006 · $165.00 proposed

  21. inspectionF03829B
    HEARTLAND QUARRIES PIT # 2 · 4104908

    Regular Safety and Health Inspection · 14.5 on-site hours

  22. inspectionF019151
    HEARTLAND QUARRIES PIT # 2 · 4104908

    Verbal Hazard Complaint Inspections · 2.0 on-site hours

  23. inspectionF019150
    HEARTLAND QUARRIES PIT # 2 · 4104908

    Regular Safety and Health Inspection · 7.5 on-site hours

  24. violation5008653
    HEARTLAND QUARRIES PIT # 2 · 4104908

    50.30(a) · $151.00 proposed

  25. violation5008652
    HEARTLAND QUARRIES PIT # 2 · 4104908

    56.4200 · $151.00 proposed

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.