Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR ID0183095
MINE PORTFOLIO
1 of 1 mines and facilities
2025-01-01 – 2026-10-17. 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.
San Bernardino, CASurface · MSHA: Sand, Industrial NEC
—
—
25
2
54.0
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
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Database snapshot · 2026-10-17. All 1 mines listed under this operator were checked; 0 have reports in the available quarters. Totals use current ownership.
Coal production
—
reported short tons
2025 Q1—No usable value reported
2025 Q2—No usable value reported
2025 Q3—No usable value reported
2025 Q4—No usable value reported
2026 Q1—No usable value reported
2026 Q2—No usable value reported
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported
Hours worked
—
reported employee hours
2025 Q1—No usable value reported
2025 Q2—No usable value reported
2025 Q3—No usable value reported
2025 Q4—No usable value reported
2026 Q1—No usable value reported
2026 Q2—No usable value reported
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported
Tons per hour
—
production ÷ hours worked
2025 Q1—No usable value reported
2025 Q2—No usable value reported
2025 Q3—No usable value reported
2025 Q4—No usable value reported
2026 Q1—No usable value reported
2026 Q2—No usable value reported
2026 Q3—No usable value reported
2026 Q4 *—No usable value reported
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
Quarterly production, employment and reporting coverage for Lynx Cat Mountain Quarry Operations, LLC
Quarter
Coal (short tons)
Hours worked
Tons / hour
Avg. employees
Coverage
2025 Q1
—
—
—
—
No report
2025 Q2
—
—
—
—
No report
2025 Q3
—
—
—
—
No report
2025 Q4
—
—
—
—
No report
2026 Q1
—
—
—
—
No report
2026 Q2
—
—
—
—
No report
2026 Q3
—
—
—
—
No report
2026 Q4
—
—
—
—
No report
Safety and enforcement
2025-01-01 – 2026-10-17
Violations
25
11 significant & substantial (S&S)
2025 Q11
2025 Q20
2025 Q31
2025 Q40
2026 Q113
2026 Q20
2026 Q310
2026 Q4 *0
Accident records
2
0 records classified as fatality
2025 Q10
2025 Q20
2025 Q30
2025 Q40
2026 Q11
2026 Q21
2026 Q30
2026 Q4 *0
Proposed penalties · USD
20,834.00
25 of 25 violations with amounts
2025 Q1209
2025 Q2—
2025 Q3151
2025 Q4—
2026 Q14,523
2026 Q2—
2026 Q315,951
2026 Q4 *—
On-site inspection hours
54.00
5 inspections · 5 with hours
2025 Q115.00
2025 Q2—
2025 Q33.00
2025 Q4—
2026 Q119.25
2026 Q2—
2026 Q316.75
2026 Q4 *—
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
1
1
209.00
0
0
2
15.0
2025-Q2
0
0
—
0
0
0
—
2025-Q3
1
0
151.00
0
0
1
3.0
2025-Q4
0
0
—
0
0
0
—
2026-Q1
13
5
4,523.00
1
0
1
19.3
2026-Q2
0
0
—
1
0
0
—
2026-Q3
10
5
15,951.00
0
0
1
16.8
2026-Q4 *
0
0
—
0
0
0
—
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
While exiting the machine to take a break using the ladder handrail system the employee losing grip on a grease contaminated handrail resulted in a fall from the equipment approximately 3-4 feet to the quarry sand surface. This placed the operator off work and modified duty as of 05/11/2026 due to a lumbar strain/sprain.
operator doing pre-op not in accordance with standardized walkaround sequence for a CAT 745 Rock Truck causing the operator to fall from the truck platform causing lower back/buttocks injury placing the operator off work on modified duty
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 controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.