ACTIVE / CONTROLLER PORTFOLIO

Eric Werner; Pat Broyles

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

MSHA CONTROLLER ID0126981

MINE PORTFOLIO

4 of 4 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
CHANDLER AGGREGATES - GILMAN SPRINGS0405536 · Active6/8 quarters reportedRiverside, CASurface · MSHA: Dimension Limestone084,9668242.3
COACHELLA VALLEY AGGREGATE0405365 · Active6/8 quarters reportedRiverside, CASurface · MSHA: Construction Sand and Gravel050,88817348.3
MAITRI CANYON PLANT0403684 · Active6/8 quarters reportedRiverside, CASurface · MSHA: Construction Sand and Gravel0163,2118062.5
NICHOLS ROAD PIT0405638 · Active6/8 quarters reportedRiverside, CASurface · MSHA: Construction Sand and Gravel0125,24410137.0

LOCATION

Portfolio map

4 of 4 mines 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

43

8 significant & substantial (S&S)

  1. 2025 Q16
  2. 2025 Q27
  3. 2025 Q33
  4. 2025 Q44
  5. 2026 Q111
  6. 2026 Q28
  7. 2026 Q34
  8. 2026 Q4 *0

Accident records

6

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q41
  5. 2026 Q10
  6. 2026 Q23
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

18,559.00

42 of 43 violations with amounts

  1. 2025 Q1906
  2. 2025 Q23,015
  3. 2025 Q3453
  4. 2025 Q4604
  5. 2026 Q15,780
  6. 2026 Q27,348
  7. 2026 Q3453
  8. 2026 Q4 *—

On-site inspection hours

190.00

24 inspections · 24 with hours

  1. 2025 Q127.25
  2. 2025 Q220.50
  3. 2025 Q322.25
  4. 2025 Q416.50
  5. 2026 Q149.00
  6. 2026 Q233.75
  7. 2026 Q320.75
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q161906.0000327.3
2025-Q2703,015.0000420.5
2025-Q331453.0010322.3
2025-Q440604.0010216.5
2026-Q11125,780.0000449.0
2026-Q2837,348.0030533.8
2026-Q341453.0010320.8
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF04A767
    MAITRI CANYON PLANT · 0403684

    Impoundment Spot Inspection · 1.5 on-site hours

  2. inspectionF02C5AA
    MAITRI CANYON PLANT · 0403684

    Regular Safety and Health Inspection · 8.3 on-site hours

  3. violation5245006
    MAITRI CANYON PLANT · 0403684

    56.12004

  4. inspectionF030FAD
    CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536

    Regular Safety and Health Inspection · 11.0 on-site hours

  5. violation5166723
    CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536

    56.14132(b)(1)(i) · $151.00 proposed

  6. violation5166722
    CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536

    56.12004 · S&S · $151.00 proposed

  7. violation5166721
    CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536

    56.12004 · $151.00 proposed

  8. accident220261900032
    NICHOLS ROAD PIT · 0405638

    MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    The plant operator was using a 3/4" air impact gun to tighten bolts on the swing dye of the jaw crusher when the impact gun bounced back and pinched the operator's hand between the tool and the wall of the crusher.

  9. inspectionF039E34
    MAITRI CANYON PLANT · 0403684

    Impoundment Spot Inspection · 2.0 on-site hours

  10. accident220261770012
    COACHELLA VALLEY AGGREGATE · 0405365

    HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    The miner smashed EE's finger with a rock while clearing a head box on conveyor C21 at the main plant.

  11. accident220261730048
    CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    The repair crew was replacing main frame liners in Sandvik cone crusher when Miner reached down to apply upward pressure on a liner which had already been tacked in. EE felt a pop and experienced pain in EE's arm.

  12. inspectionF01788C
    COACHELLA VALLEY AGGREGATE · 0405365

    Compliance Follow-up Inspection · 1.5 on-site hours

  13. inspectionF017888
    COACHELLA VALLEY AGGREGATE · 0405365

    Compliance Follow-up Inspection · 1.0 on-site hours

  14. violation5166650
    COACHELLA VALLEY AGGREGATE · 0405365

    56.11012 · S&S · $2,936.00 proposed

  15. violation5166649
    COACHELLA VALLEY AGGREGATE · 0405365

    56.20003(a) · S&S · $398.00 proposed

  16. violation5166648
    COACHELLA VALLEY AGGREGATE · 0405365

    56.11001 · S&S · $959.00 proposed

  17. violation5166647
    COACHELLA VALLEY AGGREGATE · 0405365

    56.14100(b) · $1,431.00 proposed

  18. inspectionF017885
    COACHELLA VALLEY AGGREGATE · 0405365

    Regular Safety and Health Inspection · 15.8 on-site hours

  19. accident220261140003
    COACHELLA VALLEY AGGREGATE · 0405365

    MACHINERY · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Miner was changing segments on loader (Cat #4-11 988F) bucket when EE placed EE's palm on the carriage bolt head and applied the impact gun to the nut to remove. The bolt head spun and cut through the miner's glove and lacerated EE's hand.

  20. violation5165276
    NICHOLS ROAD PIT · 0405638

    56.12004 · $504.00 proposed

  21. violation5165275
    NICHOLS ROAD PIT · 0405638

    56.4102 · $151.00 proposed

  22. violation5165274
    NICHOLS ROAD PIT · 0405638

    56.4601 · $151.00 proposed

  23. inspectionF02C173
    NICHOLS ROAD PIT · 0405638

    Regular Safety and Health Inspection · 13.5 on-site hours

  24. violation5165273
    NICHOLS ROAD PIT · 0405638

    56.12032 · $818.00 proposed

  25. inspectionF039E1C
    MAITRI CANYON PLANT · 0403684

    Impoundment Spot Inspection · 2.3 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

3 linked operators.

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