ACTIVE / OPERATOR PORTFOLIO

UNACEM North America

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

MSHA OPERATOR ID0186495

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-18. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Tehachapi Cement, LLC.0400196 · Active6/8 quarters reportedKern, CAFacility · MSHA: Cement0354,215647206.8

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

64

9 significant & substantial (S&S)

  1. 2025 Q13
  2. 2025 Q20
  3. 2025 Q315
  4. 2025 Q422
  5. 2026 Q10
  6. 2026 Q223
  7. 2026 Q31
  8. 2026 Q4 *0

Accident records

7

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q31
  4. 2025 Q41
  5. 2026 Q11
  6. 2026 Q20
  7. 2026 Q33
  8. 2026 Q4 *0

Proposed penalties · USD

17,531.00

63 of 64 violations with amounts

  1. 2025 Q11,185
  2. 2025 Q2—
  3. 2025 Q34,170
  4. 2025 Q48,310
  5. 2026 Q1—
  6. 2026 Q23,866
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

206.75

7 inspections · 7 with hours

  1. 2025 Q114.50
  2. 2025 Q2—
  3. 2025 Q360.25
  4. 2025 Q465.00
  5. 2026 Q1—
  6. 2026 Q266.00
  7. 2026 Q31.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1311,185.0000214.5
2025-Q200—100—
2025-Q31504,170.0010160.3
2025-Q42278,310.0010165.0
2026-Q100—100—
2026-Q22313,866.0000266.0
2026-Q310—3011.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5166202
    Tehachapi Cement, LLC. · 0400196

    56.20003(a) · S&S · $336.00 proposed

  2. violation5165546
    Tehachapi Cement, LLC. · 0400196

    56.12032 · $151.00 proposed

  3. violation5165545
    Tehachapi Cement, LLC. · 0400196

    56.14107(a) · $336.00 proposed

  4. violation5165544
    Tehachapi Cement, LLC. · 0400196

    56.4104(a) · $226.00 proposed

  5. accident220253170479
    Tehachapi Cement, LLC. · 0400196

    HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY

    Accident narrative

    The employee was simply walking through the Maintenance Shop holding a box cutter they had just got out of the vending machine. Upon inspection of the box cutter, they noticed a foreign object (possibly glue) on the blade. They proceeded to wipe the blade off on their left sleeve, when they cut/punctured their wrist area.

  6. accident220252300011
    Tehachapi Cement, LLC. · 0400196

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    EE was working on a machine when a cylinder press that was suspended in the air swung towards EE and pinched EE's right middle finger against the side of the buckets machine.

  7. violation9890475
    Tehachapi Cement, LLC. · 0400196

    56.14107(a) · $151.00 proposed

  8. violation9890474
    Tehachapi Cement, LLC. · 0400196

    56.4201(a)(2) · $226.00 proposed

  9. violation5166418
    Tehachapi Cement, LLC. · 0400196

    56.16001 · $151.00 proposed

  10. violation5166417
    Tehachapi Cement, LLC. · 0400196

    46.9 · $151.00 proposed

  11. violation5166416
    Tehachapi Cement, LLC. · 0400196

    56.14207 · $151.00 proposed

  12. violation5166415
    Tehachapi Cement, LLC. · 0400196

    56.14103(c)(1) · $151.00 proposed

  13. violation5165456
    Tehachapi Cement, LLC. · 0400196

    56.14107(a) · $151.00 proposed

  14. violation5165455
    Tehachapi Cement, LLC. · 0400196

    56.14107(a) · $193.00 proposed

  15. violation5165454
    Tehachapi Cement, LLC. · 0400196

    56.12004 · $288.00 proposed

  16. violation5165453
    Tehachapi Cement, LLC. · 0400196

    56.14112(a)(1) · $959.00 proposed

  17. violation5165452
    Tehachapi Cement, LLC. · 0400196

    56.4201(a)(2) · $432.00 proposed

  18. violation5165451
    Tehachapi Cement, LLC. · 0400196

    56.12032 · $151.00 proposed

  19. inspectionF017864
    Tehachapi Cement, LLC. · 0400196

    Regular Safety and Health Inspection · 60.3 on-site hours

  20. violation5165450
    Tehachapi Cement, LLC. · 0400196

    56.20014 · $151.00 proposed

  21. violation5165449
    Tehachapi Cement, LLC. · 0400196

    56.14100(c) · $432.00 proposed

  22. violation5165448
    Tehachapi Cement, LLC. · 0400196

    56.20011 · $432.00 proposed

  23. accident220250940026
    Tehachapi Cement, LLC. · 0400196

    SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Carrying empty container of regent acid, stepped down and out of shed, landed on ankle incorrectly.

  24. inspectionF00A04D
    Tehachapi Cement, LLC. · 0400196

    Spot Inspection · 1.0 on-site hours

  25. violation9892897
    Tehachapi Cement, LLC. · 0400196

    56.18002(b) · $151.00 proposed

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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.