67% of proposed penalties paid to date, a $29,464 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
90
inspections on record
1,508
inspection hours
15.6
citations per 100 inspection hours
ⓘThis rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
235 citations across 1,508 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘDifferences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$89K
proposed penalties
$60K
current assessed
$60K
paid to date
$0
outstanding
227 assessments are final orders; 11 contested dockets.
As of the most recent assessment on 2026-02-24.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Sierra Rock Products · Caught in, under or between a moving and a stationary object
THE VICTIM WAS OWNER/OPERATOR OF A TEN-WHEEL PETERBUILT GRAVEL TRUCK. HE REGULARLY HAULED FINISHED PRODUCT FROM THE STOCKPILE AT THIS PROPERTY TO CUSTOMERS LOCATED ON THE WESTERN SLOPE OF THE SIERRA NEVADA MOUNTAINS. THE MORNING OF THE ACCIDENT, THE VICTIM STOPPED HIS TRUCK ABOUT 20' FROM THE END OF THE SCALE WHERE THE LOAD WAS TO BE WEIGHED. A DOUBLE TRAILER WAS PARKED ON THE SCAL
February 23, 1991CA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorFatality · IGNITION OR EXPLOSION OF GAS OR DUST
Sierra Rock Products · Struck by... (Not Elsewhere Classified)
EMPL & FOREMAN HAD BEEN WELDING ADDITIONAL FITTINGS ON PRTABLE FUEL TANKS. TANKS HAD BEEN FILLED WITH WATER DURING WELDING OPERATION. AFTER FINISHING WLEDING TANKS WERE BEING DRAINED & FOREMAN WALKED INTO SHOP TO WORK ON HOSES. FOR SOME REASON UNKNOWN TO US EMPL CLIMBED IN BETWEEN FUEL TANKS & EXPLOSION OCCURED CAUSING INSTAND DEATH. CAUSE OF IGNITION IS UNKNOWN.
March 10, 1984CA · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techFatality · MACHINERY
Sierra Rock Products · Caught in, under or between two or more moving objects
#1 DECEASED FAILED TO FOLLOW STANDARD LOCK OUT PROCEDURE #2 WARNING HORN NOT OPERABLE #3 OPERATOR FAILED TO CLEAR ALL MACHINES BEFORE STARING PLANT. CRUSHED BETWEEN ROLLS FROM FEET TO CHEST.
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