ACTIVE / CONTROLLER PORTFOLIO

Daniel P Dietzler

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

MSHA CONTROLLER ID0112105

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
Western Proppants Facility #14801833 · Active6/8 quarters reportedGoshen, WYSurface · MSHA: Sand, Industrial NEC0184,489453114.5

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

45

12 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q22
  3. 2025 Q30
  4. 2025 Q427
  5. 2026 Q111
  6. 2026 Q25
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

3

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q21
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q22
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

88,866.00

42 of 45 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2626
  3. 2025 Q3—
  4. 2025 Q481,933
  5. 2026 Q13,929
  6. 2026 Q22,378
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

114.50

14 inspections · 14 with hours

  1. 2025 Q10.75
  2. 2025 Q217.00
  3. 2025 Q34.50
  4. 2025 Q439.25
  5. 2026 Q126.25
  6. 2026 Q226.75
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—0010.8
2025-Q220626.0010217.0
2025-Q300—0014.5
2025-Q4271081,933.0000439.3
2026-Q11113,929.0000326.3
2026-Q2512,378.0020326.8
2026-Q300—000—
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation9654901
    Western Proppants Facility #1 · 4801833

    56.4101 · $245.00 proposed

  2. inspection6853888
    Western Proppants Facility #1 · 4801833

    Verbal Hazard Complaint Inspections · 6.3 on-site hours

  3. accident220261520013
    Western Proppants Facility #1 · 4801833

    HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Miner was using a pry bar to perform maintenance. Pry bar slipped and made contact with miner resulting in a laceration underneath the left eye. Miner required additional medical treatment to glue laceration shut at local medical facility. No time lost to the incident or restrictions on the miner.

  4. violation5213302
    Western Proppants Facility #1 · 4801833

    56.14107(a) · $2,133.00 proposed

  5. inspectionF01DC88
    Western Proppants Facility #1 · 4801833

    Regular Safety and Health Inspection · 16.5 on-site hours

  6. violation5213301
    Western Proppants Facility #1 · 4801833

    56.4500

  7. violation5057321
    Western Proppants Facility #1 · 4801833

    56.4400(a) · S&S

  8. violation5057320
    Western Proppants Facility #1 · 4801833

    56.4104(b)

  9. inspectionF01DC87
    Western Proppants Facility #1 · 4801833

    Verbal Hazard Complaint Inspections · 4.0 on-site hours

  10. accident220261280008
    Western Proppants Facility #1 · 4801833

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Miner was opening container of grease and sliced middle finger on left hand. Results in stitches, no loss time

  11. inspectionF019AE4
    Western Proppants Facility #1 · 4801833

    Spot Inspection · 2.5 on-site hours

  12. violation5057429
    Western Proppants Facility #1 · 4801833

    45.4(b) · $151.00 proposed

  13. violation5057428
    Western Proppants Facility #1 · 4801833

    56.14107(a) · $1,550.00 proposed

  14. violation5057435
    Western Proppants Facility #1 · 4801833

    56.12032 · $151.00 proposed

  15. violation5057434
    Western Proppants Facility #1 · 4801833

    56.12028 · $151.00 proposed

  16. violation5057433
    Western Proppants Facility #1 · 4801833

    56.16005 · S&S · $165.00 proposed

  17. violation5057432
    Western Proppants Facility #1 · 4801833

    56.12018 · $151.00 proposed

  18. violation5057431
    Western Proppants Facility #1 · 4801833

    56.16006 · $151.00 proposed

  19. violation5057430
    Western Proppants Facility #1 · 4801833

    56.4104(b) · $151.00 proposed

  20. violation5057427
    Western Proppants Facility #1 · 4801833

    56.12032 · $245.00 proposed

  21. violation5057426
    Western Proppants Facility #1 · 4801833

    56.12028 · $245.00 proposed

  22. violation5057425
    Western Proppants Facility #1 · 4801833

    56.12018 · $818.00 proposed

  23. inspectionF019AE3
    Western Proppants Facility #1 · 4801833

    Verbal Hazard Complaint Inspections · 9.5 on-site hours

  24. inspectionF01F223
    Western Proppants Facility #1 · 4801833

    Compliance Follow-up Inspection · 14.3 on-site hours

  25. violation5055114
    Western Proppants Facility #1 · 4801833

    56.18002(b) · S&S · $5,144.00 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.