ACTIVE / CONTROLLER PORTFOLIO

New Mountain Capital

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

MSHA CONTROLLER ID0177521

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
Blue Mountain Mine & Mill2200044 · Active6/8 quarters reportedTippah, MSSurface · MSHA: Common Clays NEC0168,56311057.0

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

1 significant & substantial (S&S)

  1. 2025 Q14
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q26
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

0

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 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

1,823.00

11 of 11 violations with amounts

  1. 2025 Q1604
  2. 2025 Q2151
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1—
  6. 2026 Q21,068
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

57.00

5 inspections · 5 with hours

  1. 2025 Q113.50
  2. 2025 Q213.00
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q117.25
  6. 2026 Q212.50
  7. 2026 Q30.75
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q140604.0000113.5
2025-Q210151.0000113.0
2025-Q300—000—
2025-Q400—000—
2026-Q100—00117.3
2026-Q2611,068.0000112.5
2026-Q300—0010.8
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF00C037
    Blue Mountain Mine & Mill · 2200044

    Spot Inspection · 0.8 on-site hours

  2. violation5190301
    Blue Mountain Mine & Mill · 2200044

    56.12032 · $151.00 proposed

  3. violation5190300
    Blue Mountain Mine & Mill · 2200044

    56.14101(a)(2) · $151.00 proposed

  4. violation5190299
    Blue Mountain Mine & Mill · 2200044

    56.14101(a)(1) · S&S · $313.00 proposed

  5. violation5190298
    Blue Mountain Mine & Mill · 2200044

    56.14132(a) · $151.00 proposed

  6. inspectionF00C032
    Blue Mountain Mine & Mill · 2200044

    Regular Safety and Health Inspection · 12.5 on-site hours

  7. violation5190297
    Blue Mountain Mine & Mill · 2200044

    56.12004 · $151.00 proposed

  8. violation5190296
    Blue Mountain Mine & Mill · 2200044

    56.4200(b)(2) · $151.00 proposed

  9. inspection6917987
    Blue Mountain Mine & Mill · 2200044

    Regular Safety and Health Inspection · 17.3 on-site hours

  10. violation5062201
    Blue Mountain Mine & Mill · 2200044

    56.14112(b) · $151.00 proposed

  11. inspectionF0128CA
    Blue Mountain Mine & Mill · 2200044

    Regular Safety and Health Inspection · 13.0 on-site hours

  12. violation9757167
    Blue Mountain Mine & Mill · 2200044

    56.12004 · $151.00 proposed

  13. violation9757166
    Blue Mountain Mine & Mill · 2200044

    56.12004 · $151.00 proposed

  14. violation9757165
    Blue Mountain Mine & Mill · 2200044

    56.12004 · $151.00 proposed

  15. inspectionF0128A2
    Blue Mountain Mine & Mill · 2200044

    Regular Safety and Health Inspection · 13.5 on-site hours

  16. violation9757164
    Blue Mountain Mine & Mill · 2200044

    56.14112(b) · $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.