Coal production
0reported short tons
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 – 2026-10-18. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| CHANDLER AGGREGATES - GILMAN SPRINGS0405536 · Active6/8 quarters reported | Riverside, CASurface · MSHA: Dimension Limestone | 0 | 84,966 | 8 | 2 | 42.3 |
| COACHELLA VALLEY AGGREGATE0405365 · Active6/8 quarters reported | Riverside, CASurface · MSHA: Construction Sand and Gravel | 0 | 50,888 | 17 | 3 | 48.3 |
| MAITRI CANYON PLANT0403684 · Active6/8 quarters reported | Riverside, CASurface · MSHA: Construction Sand and Gravel | 0 | 163,211 | 8 | 0 | 62.5 |
| NICHOLS ROAD PIT0405638 · Active6/8 quarters reported | Riverside, CASurface · MSHA: Construction Sand and Gravel | 0 | 125,244 | 10 | 1 | 37.0 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
4 of 4 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- CHANDLER AGGREGATES - GILMAN SPRINGS33.86917, -117.03444Open map ↗
- COACHELLA VALLEY AGGREGATE33.75306, -116.12694Open map ↗
- MAITRI CANYON PLANT33.74583, -117.47778Open map ↗
- NICHOLS ROAD PIT33.70583, -117.36472Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 4 mines listed under this controller were checked; 4 have reports in the available quarters. Totals use current ownership.
Hours worked
424,309reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 71,680 | 0.00 | 107 | 4/4 mines reporting |
| 2025 Q2 | 0 | 73,313 | 0.00 | 106 | 4/4 mines reporting |
| 2025 Q3 | 0 | 72,539 | 0.00 | 104 | 4/4 mines reporting |
| 2025 Q4 | 0 | 67,817 | 0.00 | 109 | 4/4 mines reporting |
| 2026 Q1 | 0 | 69,010 | 0.00 | 108 | 4/4 mines reporting |
| 2026 Q2 | 0 | 69,950 | 0.00 | 105 | 4/4 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
438 significant & substantial (S&S)
Accident records
60 records classified as fatality
Proposed penalties · USD
18,559.0042 of 43 violations with amounts
On-site inspection hours
190.0024 inspections · 24 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 6 | 1 | 906.00 | 0 | 0 | 3 | 27.3 |
| 2025-Q2 | 7 | 0 | 3,015.00 | 0 | 0 | 4 | 20.5 |
| 2025-Q3 | 3 | 1 | 453.00 | 1 | 0 | 3 | 22.3 |
| 2025-Q4 | 4 | 0 | 604.00 | 1 | 0 | 2 | 16.5 |
| 2026-Q1 | 11 | 2 | 5,780.00 | 0 | 0 | 4 | 49.0 |
| 2026-Q2 | 8 | 3 | 7,348.00 | 3 | 0 | 5 | 33.8 |
| 2026-Q3 | 4 | 1 | 453.00 | 1 | 0 | 3 | 20.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- MAITRI CANYON PLANT · 0403684
Impoundment Spot Inspection · 1.5 on-site hours
- COACHELLA VALLEY AGGREGATE · 0405365
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
The plant operator was working with EE replacing a bearing at the head pulley of the sand stacker when EE cut EE's index finger on EE's right hand.
- CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536
Regular Safety and Health Inspection · 7.8 on-site hours
- COACHELLA VALLEY AGGREGATE · 0405365
Compliance Follow-up Inspection · 0.5 on-site hours
- COACHELLA VALLEY AGGREGATE · 0405365
56.12004 · $883.00 proposed
- MAITRI CANYON PLANT · 0403684
Impoundment Spot Inspection · 2.5 on-site hours
- COACHELLA VALLEY AGGREGATE · 0405365
Regular Safety and Health Inspection · 9.0 on-site hours
- COACHELLA VALLEY AGGREGATE · 0405365
56.12008 · $883.00 proposed
- COACHELLA VALLEY AGGREGATE · 0405365
56.12004 · $398.00 proposed
- COACHELLA VALLEY AGGREGATE · 0405365
56.12018 · $398.00 proposed
- COACHELLA VALLEY AGGREGATE · 0405365
56.12004 · $151.00 proposed
- NICHOLS ROAD PIT · 0405638
Regular Safety and Health Inspection · 8.5 on-site hours
- NICHOLS ROAD PIT · 0405638
56.14107(a) · $151.00 proposed
- NICHOLS ROAD PIT · 0405638
56.14112(a)(1) · $151.00 proposed
- MAITRI CANYON PLANT · 0403684
Impoundment Spot Inspection · 1.5 on-site hours
- CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536
56.14112(a)(1) · $151.00 proposed
- CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536
56.12004 · $151.00 proposed
- CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536
Regular Safety and Health Inspection · 13.5 on-site hours
- CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536
56.12004 · $151.00 proposed
- CHANDLER AGGREGATES - GILMAN SPRINGS · 0405536
56.12004 · $151.00 proposed
- MAITRI CANYON PLANT · 0403684
Regular Safety and Health Inspection · 12.3 on-site hours
- MAITRI CANYON PLANT · 0403684
56.14107(a) · $151.00 proposed
- MAITRI CANYON PLANT · 0403684
56.20003(a) · S&S · $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
3 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.