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 – 2026-10-18. 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 – 2026-10-18Applies 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. inspectionF01F222
    Western Proppants Facility #1 · 4801833

    103 (g) Written Notification Hazard Complaint Inspectio · 2.5 on-site hours

  2. violation5056949
    Western Proppants Facility #1 · 4801833

    56.4130(b) · $313.00 proposed

  3. violation5056948
    Western Proppants Facility #1 · 4801833

    56.14107(a) · S&S · $10,569.00 proposed

  4. inspectionF02BB3D
    Western Proppants Facility #1 · 4801833

    Regular Safety and Health Inspection · 18.0 on-site hours

  5. violation5056947
    Western Proppants Facility #1 · 4801833

    56.20003(a) · $1,037.00 proposed

  6. inspectionF01595B
    Western Proppants Facility #1 · 4801833

    Verbal Hazard Complaint Inspections · 4.5 on-site hours

  7. accident220251600019
    Western Proppants Facility #1 · 4801833

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee was walking and the ground was wet and muddy due to rain and slipped and twisted right ankle causing a break in one of the ankle bones.

  8. inspectionF01CAA6
    Western Proppants Facility #1 · 4801833

    Verbal Hazard Complaint Inspections · 4.0 on-site hours

  9. violation5051265
    Western Proppants Facility #1 · 4801833

    56.11002 · $313.00 proposed

  10. inspectionF004244
    Western Proppants Facility #1 · 4801833

    Regular Safety and Health Inspection · 13.0 on-site hours

  11. violation5051264
    Western Proppants Facility #1 · 4801833

    56.14112(a) · $313.00 proposed

  12. inspectionF010E04
    Western Proppants Facility #1 · 4801833

    Compliance Follow-up Inspection · 0.8 on-site hours

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 operator.

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