ACTIVE / OPERATOR PORTFOLIO

MC Materials, LLC

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

MSHA OPERATOR ID0180513

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
SPRING CREEK MATERIALS, INC.2302218 · Active6/8 quarters reportedHowell, MOSurface · MSHA: Construction Sand and Gravel012,73613051.8

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

13

1 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q23
  3. 2025 Q30
  4. 2025 Q42
  5. 2026 Q16
  6. 2026 Q22
  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

2,038.00

13 of 13 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2453
  3. 2025 Q3—
  4. 2025 Q4319
  5. 2026 Q1964
  6. 2026 Q2302
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

51.75

8 inspections · 8 with hours

  1. 2025 Q13.75
  2. 2025 Q23.00
  3. 2025 Q312.25
  4. 2025 Q414.00
  5. 2026 Q17.25
  6. 2026 Q211.50
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—0013.8
2025-Q230453.000013.0
2025-Q300—00212.3
2025-Q420319.0000214.0
2026-Q161964.000017.3
2026-Q220302.0000111.5
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5048437
    SPRING CREEK MATERIALS, INC. · 2302218

    56.12028 · $151.00 proposed

  2. violation5048436
    SPRING CREEK MATERIALS, INC. · 2302218

    56.12028 · $151.00 proposed

  3. inspectionF027E45
    SPRING CREEK MATERIALS, INC. · 2302218

    Regular Safety and Health Inspection · 11.5 on-site hours

  4. inspectionF012399
    SPRING CREEK MATERIALS, INC. · 2302218

    Regular Safety and Health Inspection · 7.3 on-site hours

  5. violation5048349
    SPRING CREEK MATERIALS, INC. · 2302218

    50.30(a) · $151.00 proposed

  6. violation5048348
    SPRING CREEK MATERIALS, INC. · 2302218

    47.44(a)(2) · $151.00 proposed

  7. violation5048347
    SPRING CREEK MATERIALS, INC. · 2302218

    56.4130(b) · $151.00 proposed

  8. violation5048346
    SPRING CREEK MATERIALS, INC. · 2302218

    56.16005 · $151.00 proposed

  9. violation5048345
    SPRING CREEK MATERIALS, INC. · 2302218

    56.15007 · S&S · $209.00 proposed

  10. violation5048344
    SPRING CREEK MATERIALS, INC. · 2302218

    56.16005 · $151.00 proposed

  11. inspectionF014806
    SPRING CREEK MATERIALS, INC. · 2302218

    Verbal Hazard Complaint Inspections · 14.0 on-site hours

  12. violation9763282
    SPRING CREEK MATERIALS, INC. · 2302218

    56.12028 · $151.00 proposed

  13. violation9763281
    SPRING CREEK MATERIALS, INC. · 2302218

    46.5 · $168.00 proposed

  14. inspectionF014805
    SPRING CREEK MATERIALS, INC. · 2302218

    103 (g) Written Notification Hazard Complaint Inspectio · 0.0 on-site hours

  15. inspectionF0148AC
    SPRING CREEK MATERIALS, INC. · 2302218

    Spot Inspection · 10.8 on-site hours

  16. inspectionF014899
    SPRING CREEK MATERIALS, INC. · 2302218

    Special Emphasis Programs · 1.5 on-site hours

  17. inspectionF01488D
    SPRING CREEK MATERIALS, INC. · 2302218

    Regular Safety and Health Inspection · 3.0 on-site hours

  18. violation9768576
    SPRING CREEK MATERIALS, INC. · 2302218

    56.12028 · $151.00 proposed

  19. violation9768575
    SPRING CREEK MATERIALS, INC. · 2302218

    56.12004 · $151.00 proposed

  20. violation9768574
    SPRING CREEK MATERIALS, INC. · 2302218

    56.14100(b) · $151.00 proposed

  21. inspection7102493
    SPRING CREEK MATERIALS, INC. · 2302218

    Regular Safety and Health Inspection · 3.8 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.