ACTIVE / CONTROLLER PORTFOLIO

Mike Dean Scheffler

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

MSHA CONTROLLER ID0179161

MINE PORTFOLIO

2 of 2 mines and facilities

2025-01-01 – 2026-10-17. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Portable #1 (Red Rock Quarry)2103454 · ActiveCottonwood, MNSurface · MSHA: Construction Sand and Gravel——451106.3
Portable Secondary Plant2103640 · ActiveRedwood, MNSurface · MSHA: Construction Sand and Gravel——8031.8

LOCATION

Portfolio map

2 of 2 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-17Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

53

6 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q29
  3. 2025 Q30
  4. 2025 Q413
  5. 2026 Q10
  6. 2026 Q226
  7. 2026 Q35
  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 Q21
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

30,474.00

53 of 53 violations with amounts

  1. 2025 Q1—
  2. 2025 Q23,171
  3. 2025 Q3—
  4. 2025 Q46,366
  5. 2026 Q1—
  6. 2026 Q215,720
  7. 2026 Q35,217
  8. 2026 Q4 *—

On-site inspection hours

138.00

11 inspections · 11 with hours

  1. 2025 Q1—
  2. 2025 Q228.50
  3. 2025 Q3—
  4. 2025 Q423.25
  5. 2026 Q1—
  6. 2026 Q247.75
  7. 2026 Q338.50
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q2903,171.0000228.5
2025-Q300—000—
2025-Q41306,366.0000223.3
2026-Q100—000—
2026-Q226315,720.0010247.8
2026-Q3535,217.0000538.5
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5114142
    Portable #1 (Red Rock Quarry) · 2103454

    56.4104 · $226.00 proposed

  2. violation5114141
    Portable #1 (Red Rock Quarry) · 2103454

    56.12004 · $226.00 proposed

  3. inspectionF02FF28
    Portable #1 (Red Rock Quarry) · 2103454

    Regular Safety and Health Inspection · 42.0 on-site hours

  4. violation5114140
    Portable #1 (Red Rock Quarry) · 2103454

    56.12004 · $226.00 proposed

  5. violation5114139
    Portable #1 (Red Rock Quarry) · 2103454

    56.12004 · $755.00 proposed

  6. violation5114138
    Portable #1 (Red Rock Quarry) · 2103454

    56.14100(d) · $226.00 proposed

  7. violation5114137
    Portable #1 (Red Rock Quarry) · 2103454

    56.14100(c) · $226.00 proposed

  8. violation5114136
    Portable #1 (Red Rock Quarry) · 2103454

    56.9301 · $755.00 proposed

  9. violation5114135
    Portable #1 (Red Rock Quarry) · 2103454

    56.14112(b) · S&S · $1,679.00 proposed

  10. violation5114134
    Portable #1 (Red Rock Quarry) · 2103454

    56.14100(c) · $151.00 proposed

  11. violation5114133
    Portable #1 (Red Rock Quarry) · 2103454

    56.12004 · $2,503.00 proposed

  12. violation5114132
    Portable #1 (Red Rock Quarry) · 2103454

    56.14105 · S&S · $1,679.00 proposed

  13. violation5114131
    Portable #1 (Red Rock Quarry) · 2103454

    56.11001 · $226.00 proposed

  14. accident220261280001
    Portable #1 (Red Rock Quarry) · 2103454

    MACHINERY · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Employee was loosening bolts for a loader bucket cutting edge with an air impact, and grabbed the bolt head with EE's bare hand. The bolt spun in EE's hand, cutting open two of EE's fingers on EE's left hand. Employee was taken to the emergency room for stitches.

  15. inspectionF02FAF7
    Portable Secondary Plant · 2103640

    Regular Safety and Health Inspection · 9.0 on-site hours

  16. violation5114074
    Portable Secondary Plant · 2103640

    56.12028 · $2,503.00 proposed

  17. violation5114073
    Portable Secondary Plant · 2103640

    56.18002(b) · $209.00 proposed

  18. violation5114072
    Portable Secondary Plant · 2103640

    56.14207 · $226.00 proposed

  19. violation5114071
    Portable Secondary Plant · 2103640

    56.12018 · $226.00 proposed

  20. violation5114070
    Portable #1 (Red Rock Quarry) · 2103454

    56.14131(b) · $226.00 proposed

  21. violation5114069
    Portable #1 (Red Rock Quarry) · 2103454

    56.12004 · $755.00 proposed

  22. violation5114068
    Portable #1 (Red Rock Quarry) · 2103454

    56.4201(a)(2) · $226.00 proposed

  23. violation5114067
    Portable #1 (Red Rock Quarry) · 2103454

    56.11027 · $755.00 proposed

  24. inspectionF02FAF6
    Portable #1 (Red Rock Quarry) · 2103454

    Regular Safety and Health Inspection · 14.3 on-site hours

  25. violation5114066
    Portable #1 (Red Rock Quarry) · 2103454

    56.14101(a)(2) · $226.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.

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

2 linked operators.

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