ACTIVE / OPERATOR PORTFOLIO

Blue Mountain Minerals PR LLC

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

MSHA OPERATOR ID0144714

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 Minerals PR LLC0400099 · Active6/8 quarters reportedSan Luis Obispo, CASurface · MSHA: Crushed, Broken Limestone NEC042,8465135.5

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

5

2 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q23
  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 Q11
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

863.00

5 of 5 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2—
  3. 2025 Q3151
  4. 2025 Q4—
  5. 2026 Q1245
  6. 2026 Q2467
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

35.50

3 inspections · 3 with hours

  1. 2025 Q1—
  2. 2025 Q2—
  3. 2025 Q317.25
  4. 2025 Q4—
  5. 2026 Q110.25
  6. 2026 Q28.00
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q200—000—
2025-Q310151.0000117.3
2025-Q400—000—
2026-Q111245.0010110.3
2026-Q231467.000018.0
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF02C177
    Blue Mountain Minerals PR LLC · 0400099

    Regular Safety and Health Inspection · 8.0 on-site hours

  2. violation5165281
    Blue Mountain Minerals PR LLC · 0400099

    56.14112(a)(1) · $151.00 proposed

  3. violation5165280
    Blue Mountain Minerals PR LLC · 0400099

    56.11001 · S&S · $165.00 proposed

  4. violation5165279
    Blue Mountain Minerals PR LLC · 0400099

    56.14112(b) · $151.00 proposed

  5. violation9890781
    Blue Mountain Minerals PR LLC · 0400099

    56.11012 · S&S · $245.00 proposed

  6. inspectionF021E58
    Blue Mountain Minerals PR LLC · 0400099

    Regular Safety and Health Inspection · 10.3 on-site hours

  7. accident220260400033
    Blue Mountain Minerals PR LLC · 0400099

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Miner clocked in from lunch and was using their phone while walking. There was a wheel chock out in open space that led to them tripping and the miner fell. The fall then apparently caused a fracture to the proximal end of the radius bone in the left arm.

  8. violation5102130
    Blue Mountain Minerals PR LLC · 0400099

    50.30(a) · $151.00 proposed

  9. inspectionF012E23
    Blue Mountain Minerals PR LLC · 0400099

    Regular Safety and Health Inspection · 17.3 on-site hours

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 controller.

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