ACTIVE / CONTROLLER PORTFOLIO

Robert W Enz

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

MSHA CONTROLLER ID0045967

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
VINEYARD ROCK0405619 · Active6/8 quarters reportedSan Benito, CASurface · MSHA: Crushed, Broken Stone NEC017,21719043.0

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

19

5 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q413
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q36
  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

7,801.00

19 of 19 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2—
  3. 2025 Q3—
  4. 2025 Q42,266
  5. 2026 Q1—
  6. 2026 Q2—
  7. 2026 Q35,535
  8. 2026 Q4 *—

On-site inspection hours

43.00

5 inspections · 5 with hours

  1. 2025 Q11.75
  2. 2025 Q2—
  3. 2025 Q3—
  4. 2025 Q418.75
  5. 2026 Q14.75
  6. 2026 Q2—
  7. 2026 Q317.75
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—0011.8
2025-Q200—000—
2025-Q300—000—
2025-Q41332,266.0000218.8
2026-Q100—0014.8
2026-Q200—000—
2026-Q3625,535.0000117.8
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5162465
    VINEYARD ROCK · 0405619

    56.11027 · $288.00 proposed

  2. violation5162464
    VINEYARD ROCK · 0405619

    56.14130(g) · S&S · $1,431.00 proposed

  3. violation5162463
    VINEYARD ROCK · 0405619

    56.4201(a)(2) · $193.00 proposed

  4. violation5162462
    VINEYARD ROCK · 0405619

    56.9300 · S&S · $3,184.00 proposed

  5. violation5162461
    VINEYARD ROCK · 0405619

    56.9300(a) · $288.00 proposed

  6. violation5162460
    VINEYARD ROCK · 0405619

    41.12 · $151.00 proposed

  7. inspectionF034D6E
    VINEYARD ROCK · 0405619

    Regular Safety and Health Inspection · 17.8 on-site hours

  8. inspectionF012E2C
    VINEYARD ROCK · 0405619

    Compliance Follow-up Inspection · 4.8 on-site hours

  9. violation5100916
    VINEYARD ROCK · 0405619

    56.14101(a)(2) · $151.00 proposed

  10. violation5100915
    VINEYARD ROCK · 0405619

    56.13015(a) · $151.00 proposed

  11. violation5100914
    VINEYARD ROCK · 0405619

    56.13015(a) · $151.00 proposed

  12. inspectionF025DB3
    VINEYARD ROCK · 0405619

    Verbal Hazard Complaint Inspections · 6.0 on-site hours

  13. violation5100907
    VINEYARD ROCK · 0405619

    46.9(c)(3) · $151.00 proposed

  14. violation5100906
    VINEYARD ROCK · 0405619

    46.6(a) · S&S · $184.00 proposed

  15. violation9308399
    VINEYARD ROCK · 0405619

    56.9300(b) · $151.00 proposed

  16. violation9308398
    VINEYARD ROCK · 0405619

    56.11027 · S&S · $165.00 proposed

  17. violation9308397
    VINEYARD ROCK · 0405619

    56.14207 · $151.00 proposed

  18. violation5100905
    VINEYARD ROCK · 0405619

    50.30(a) · $151.00 proposed

  19. violation5100904
    VINEYARD ROCK · 0405619

    50.30(a) · $151.00 proposed

  20. violation5100903
    VINEYARD ROCK · 0405619

    50.30(a) · $151.00 proposed

  21. violation5100902
    VINEYARD ROCK · 0405619

    50.30(a) · $151.00 proposed

  22. violation5100901
    VINEYARD ROCK · 0405619

    46.8(a)(2) · S&S · $407.00 proposed

  23. inspectionF025DB1
    VINEYARD ROCK · 0405619

    Regular Safety and Health Inspection · 12.8 on-site hours

  24. inspectionF02786C
    VINEYARD ROCK · 0405619

    Regular Safety and Health Inspection · 1.8 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 operator.

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