MRC Rock & Sand LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Cucamonga Creek Mine · 04059295.0 on-site hours reported
Regular Safety and Health Inspection
Ojai Quarry · 040522912.0 on-site hours reported
Electrical conductors.
Ojai Quarry · 040522930 CFR 56.12004 · $151.00 proposed penalty
Operators stations.
Ojai Quarry · 040522930 CFR 56.14103(c)(1) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Ojai Quarry · 040522930 CFR 56.14100(b) · $151.00 proposed penalty
Brakes.
Mojave Rock Mine · 040591730 CFR 56.14101(a)(3) · Significant and substantial (S&S) · $209.00 proposed penalty
Regular Safety and Health Inspection
Mojave Rock Mine · 04059179.0 on-site hours reported
Regular Safety and Health Inspection
Ojai Quarry · 04052295.5 on-site hours reported
Annual refresher training.
Ojai Quarry · 040522930 CFR 46.8(a)(1) · $168.00 proposed penalty
Horns and backup alarms.
Ojai Quarry · 040522930 CFR 56.14132(b)(1)(i) · $151.00 proposed penalty
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Ojai Quarry · 040522930 CFR 50.30(a) · $151.00 proposed penalty
Compliance Follow-up Inspection
Mojave Rock Mine · 04059171.0 on-site hours reported
Horns and backup alarms.
Mojave Rock Mine · 040591730 CFR 56.14132(a) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Mojave Rock Mine · 040591730 CFR 56.14100(b) · $209.00 proposed penalty
Extinguisher recharging or replacement.
Mojave Rock Mine · 040591730 CFR 56.4203 · $151.00 proposed penalty
Moving machine parts.
Mojave Rock Mine · 040591730 CFR 56.14107(a) · Significant and substantial (S&S) · $5,144.00 proposed penalty
Inspection.
Mojave Rock Mine · 040591730 CFR 56.4201(a)(2) · $151.00 proposed penalty
Regular Safety and Health Inspection
Mojave Rock Mine · 040591724.5 on-site hours reported
Regular Safety and Health Inspection
Cucamonga Creek Mine · 04059298.0 on-site hours reported
Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.
Cucamonga Creek Mine · 040592930 CFR 50.30(a) · $151.00 proposed penalty
Warning signs.
Cucamonga Creek Mine · 040592930 CFR 56.4101 · $151.00 proposed penalty
Correction of hazardous conditions.
Cucamonga Creek Mine · 040592930 CFR 56.3200 · Significant and substantial (S&S) · $209.00 proposed penalty
Regular Safety and Health Inspection
Cucamonga Creek Mine · 04059295.0 on-site hours reported
Regular Safety and Health Inspection
Mojave Rock Mine · 040591716.0 on-site hours reported
Testing grounding systems.
Mojave Rock Mine · 040591730 CFR 56.12028 · $12,403.00 proposed penalty
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
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.