Mining Incidents

Lucerne Valley Pit Metal/Non-Metal

Controlled by Robar Enterprises Inc
Lucerne Valley, San Bernardino County, CA  ·  Active
MSHA Mine ID: 0403178

Lucerne Valley Pit has $215K in proposed MSHA penalties and $0 outstanding across 9 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Lucerne Valley Pit.

Fatalities
1
Total incidents
27
Years on record
1984–2017
Latest incident
Mar 2017
Compliance record
MSHA citations since 2000
202
citations
65
significant & substantial
$214,811
proposed penalties
$122,494
paid to date
57% of proposed penalties paid to date, a $92,317 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
87
inspections on record
1,417
inspection hours
14.3
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.
202 citations across 1,417 inspection hours.
Source: MSHA inspections data, updated weekly.

Lucerne Valley Pit has $215K in proposed MSHA penalties and $0 outstanding across 9 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$215K
proposed penalties
$122K
current assessed
$122K
paid to date
$0
outstanding
200 assessments are final orders; 9 contested dockets.
As of the most recent assessment on 2026-02-04.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 4,662 0 0 0.0
2025 Q3 3,802 0 0 0.0
2025 Q2 4,986 1 1 200.6
2025 Q1 3,805 0 0 0.0
2024 Q4 4,703 4 2 850.5
2024 Q3 5,125 0 0 0.0
2024 Q2 5,038 0 0 0.0
2024 Q1 3,764 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 5,154 1 0 194.0
2023 Q3 3,521 0 0 0.0
2023 Q2 4,810 0 0 0.0
2023 Q1 4,296 0 0 0.0
2022 Q4 5,984 3 1 501.3
2022 Q3 6,480 3 1 463.0
2022 Q2 4,823 0 0 0.0
2022 Q1 4,612 2 1 433.7
2021 Q4 5,805 0 0 0.0
2021 Q3 5,419 0 0 0.0
2021 Q2 4,108 3 2 730.3
2021 Q1 3,813 0 0 0.0
2020 Q4 5,779 1 0 173.0
2020 Q3 4,950 0 0 0.0
2020 Q2 2,947 0 0 0.0
2020 Q1 5,115 3 1 586.5
2019 Q4 4,867 0 0 0.0
2019 Q3 7,013 4 3 570.4
2019 Q2 6,103 0 0 0.0
2019 Q1 8,731 1 0 114.5
2018 Q4 9,729 0 0 0.0
2018 Q3 7,968 0 0 0.0
2018 Q2 5,162 4 0 774.9
2018 Q1 5,458 4 1 732.9
2017 Q4 5,313 0 0 0.0
2017 Q3 8,854 3 1 338.8
2017 Q2 6,905 10 6 1448.2
2017 Q1 7,073 5 2 706.9
2016 Q4 9,357 0 0 0.0
2016 Q3 11,937 6 6 502.6
2016 Q2 9,606 5 2 520.5
2016 Q1 11,512 0 0 0.0
2015 Q4 4,496 3 0 667.3
2015 Q3 2,741 0 0 0.0
2015 Q2 2,458 2 1 813.7
2015 Q1 2,244 2 2 891.3
2014 Q4 3,441 0 0 0.0
2014 Q3 3,628 1 0 275.6
2014 Q2 4,902 0 0 0.0
2014 Q1 2,272 0 0 0.0
2013 Q4 3,461 0 0 0.0
2013 Q3 2,846 2 0 702.7
2013 Q2 3,779 2 0 529.2
2013 Q1 3,369 0 0 0.0
2012 Q4 3,394 0 0 0.0
2012 Q3 3,153 0 0 0.0
2012 Q2 4,774 2 2 418.9
2012 Q1 3,002 0 0 0.0
2011 Q4 3,902 3 1 768.8
2011 Q3 3,869 0 0 0.0
2011 Q2 2,695 3 2 1113.2
2011 Q1 2,764 0 0 0.0
2010 Q4 2,996 2 1 667.6
2010 Q3 3,124 0 0 0.0
2010 Q2 2,328 2 0 859.1
2010 Q1 1,731 0 0 0.0
2009 Q4 2,577 3 0 1164.1
2009 Q3 3,126 0 0 0.0
2009 Q2 2,534 0 0 0.0
2009 Q1 2,744 10 3 3644.3
2008 Q4 2,390 6 1 2510.5
2008 Q3 4,619 0 0 0.0
2008 Q2 4,687 1 0 213.4
2008 Q1 3,701 0 0 0.0
2007 Q4 4,052 1 1 246.8
2007 Q3 5,384 0 0 0.0
2007 Q2 4,018 2 0 497.8
2007 Q1 4,470 8 0 1789.7
2006 Q4 4,217 0 0 0.0
2006 Q3 5,974 0 0 0.0
2006 Q2 5,885 12 1 2039.1
2006 Q1 6,508 3 1 461.0
2005 Q4 6,793 12 2 1766.5
2005 Q3 7,864 0 0 0.0
2005 Q2 7,038 7 1 994.6
2005 Q1 5,440 0 0 0.0
2004 Q4 7,910 11 2 1390.6
2004 Q3 4,930 0 0 0.0
2004 Q2 5,358 8 3 1493.1
2004 Q1 4,156 0 0 0.0
2003 Q4 5,212 2 0 383.7
2003 Q3 4,108 0 0 0.0
2003 Q2 4,941 4 3 809.6
2003 Q1 3,687 0 0 0.0
2002 Q4 3,594 1 0 278.2
2002 Q3 3,075 0 0 0.0
2002 Q2 3,604 1 1 277.5
2002 Q1 3,022 1 0 330.9
2001 Q4 3,428 0 0 0.0
2001 Q3 2,953 6 0 2031.8
2001 Q2 3,586 0 0 0.0
2001 Q1 2,103 0 0 0.0
2000 Q4 3,259 0 0 0.0
2000 Q3 3,930 14 7 3562.3
2000 Q2 3,035 0 0 0.0
2000 Q1 2,613 0 0 0.0

Fatalities at this mine

1 recorded
August 11, 1992 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver Fatality · POWERED HAULAGE
Hi-Grade Materials Co · Caught in, under or between a moving and a stationary object

10242 CONTRACTING HAUL TRUCK DRIVER EXITED HIS OWN TRUCK NEAR THE OFFICE/TRUCK SCALE. UPON EXITING THE TRUCK, THE DRIVER DID NOT SET THE BRAKES OR THE BRAKES FAILED. THE TRUCK STARTED TO ROLL 15403HE DRIVER ATTEMPTED TO ENTER THE MOVING TRUCK. HE WAS UNSUCCESSFUL IN STOPPING HIS TRUCK AND THE DRIVER WAS RUN OVER BY HIS VEHICLE.

Reportable incidents

26 on file (excluding fatalities above)

2017 · 1 incident

March 21, 2017 CA · Metal/Non-Metal welder (shop) ENTRAPMENT
Hi-Grade Materials Co · Caught in, under or between collapsing material or buildings

While attempting to change skirting on conveyor, employee entered the dozer trap to remove bolts, equipment operator pushed material into the hopper and buried employee with material.

2002 · 1 incident

August 2, 2002 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
Hi-Grade Materials Co · Flash burns (welding)

EMPLOYEE WAS WELDING AND THE WELDING ARC BOUNCED OFF THE TRUCK BEHIND HIM AND HIT THE INSIDE OF HIS WELDING HELMET.

2001 · 1 incident

August 16, 2001 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Hi-Grade Materials Co · Struck against a moving object

EE WAS DRIVING A LOADER AND THE BOUNCING AROUND CAUSED TWIST OF LEFT TESTICLE.

1998 · 1 incident

September 4, 1998 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (PHYSICAL AGENTS)
Hi-Grade Materials Co · Contact with heat

EE HAD BEEN WORKING LOADER #980-C LONG HOURS FOR SEVERAL DAYS. IT WAS EXTREMELY HOT TEMPS OVER 100 DEGREES; EE HAD BEEN SICK WITH THE FLU EARLIER IN THE WEEK. HE FELT FAIN AND DIZZY THINKING I T WAS FROM THE FUMES OF THE LOADER. WAS TAKEN TO HOSPITAL VIA AMBULANCE. RELEASED THAT EVENING.

1997 · 1 incident

July 26, 1997 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Hi-Grade Materials Co · Over-exertion (Not Elsewhere Classified)

WHEN WORKING ON LOADER, STEPPED OFF AND TWISTED KNEE.

1996 · 1 incident

October 16, 1996 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
Hi-Grade Materials Co · Struck by flying object

WORKING INSIDE SCREEN (QUARRY EQPT) WHEN WIND BLEW DUST AND DEBRIS INTO FACE AND LEFT EYE.

1992 · 3 incidents

October 16, 1992 CA · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
Hi-Grade Materials Co · Over-exertion in pulling or pushing objects

THE EMPLOYEE WAS PRYING ON THE ADDITIVE TANK TO TILT IT FOR BETTER PICK UP.

September 9, 1992 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Hi-Grade Materials Co · Caught in, under or between a moving and a stationary object

AS THE EMPLOYEE WAS ATTACHING A PORTABLE WELDER TO THE BOB CAT THE WELDER,BEING UNBALANCED,FORCED EMPLOYEE AGAINST THE ON BOARD OXYGEN BOTTLES.

May 11, 1992 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Hi-Grade Materials Co · Unclassified, insufficient data

FOUND UNCONCSIOUS ON FLOOR

1991 · 1 incident

July 12, 1991 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Hi-Grade Materials Co · Over-exertion (Not Elsewhere Classified)

EMPLOYEE REPORTED THAT SOME TIME IN JUNE OF 1991HE WAS SHOVELING AROUND THE #2 SCREEN AT THE PLANT & FELT PAIN IN HIS RT SHOULDER

1990 · 3 incidents

August 21, 1990 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Hi-Grade Materials Co · Struck against stationary object

THE EMPLOYEE WAS SHOVELING MATERIALS UNDER THE CONVEYOR AND HIS SHOVEL HIT A ROCK AS HE STABBED IT IN THE GROUND.

May 23, 1990 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Hi-Grade Materials Co · Struck by... (Not Elsewhere Classified)

CHANGING CUTTING EDGES ON BUCKET OF THE LOADER PC OF METAL BROKE SKIN IN R HAND BECAME IMBEDDED

January 16, 1990 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Hi-Grade Materials Co · Over-exertion in wielding or throwing objects

EMPLOYEE WAS ASSISTING IN THE REMOVAL OF ROCK THAT WAS STUCK IN THE TAIL PULLEY SECTION OF THE PIT STACKER. EMPLOYEE WAS USING HAMMER TO DISLODGE THE ROCK WHEN HE FELT SOMETHING PULL IN THE BA CK OF HIS NECK.

1989 · 2 incidents

October 17, 1989 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Hi-Grade Materials Co · Caught in, under or between (Not Elsewhere Classified)

THE EMPLOYEE WAS TAKING THE BELLY PAN OFF THE DOZER WHEN HIS FINGERS WENT BETWEEN THE BELLY PAN AND THE FRAME.

July 31, 1989 CA · Metal/Non-Metal pumper HANDLING OF MATERIALS
Hi-Grade Materials Co · Over-exertion in lifting objects

WOKE UP ON 8-1-89 AFTER WORKING ON 7-312-89 WITH LOW BACK PAINS ON 7-31-89 SHOVELING MATERIAL OUT FOR UNDERNEATH CO;NVEY BELT

1988 · 2 incidents

April 26, 1988 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Hi-Grade Materials Co · Over-exertion (Not Elsewhere Classified)

EMPLOYEE REPORTED THAT WHILE CLIMBING DOWN FROM THE LOADER TO A TRUCK HE HURT HIS BACK

April 21, 1988 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Hi-Grade Materials Co · Over-exertion (Not Elsewhere Classified)

EMPLOYEE REPORTED THAT WHILE DRIVING ON A BUMPY ROAD HE PULLED OR STRAINED HIS LEFT LOWER BACK

1987 · 3 incidents

November 19, 1987 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Hi-Grade Materials Co · Over-exertion (Not Elsewhere Classified)

WHILE ADJUSTING3THE CONE A PIPE WAS BEING USED.

September 29, 1987 CA · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor SLIP OR FALL OF PERSON
Hi-Grade Materials Co · Fall from ladders

DESCENDING A LA8DER ON #1 WET SCREEN AREA WHEN EMPLOYEE FELL OFF THE LADDER TO THE GROUND (APPROX. 5 FT.) BELOW.

May 28, 1987 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Hi-Grade Materials Co · Struck by... (Not Elsewhere Classified)

EMP WAS TIGHTEN3NG A CHAIN BINDER WHEN THE LATCH BROKE FREE, HE THOUGHT THE BINDER WAS LATCHED HOWEVER WHEN HE PULLED ON THE CHEATER BAR THE ASSEMBLY STRUCK THE RIGHT SIDE OF HIS HEAD

1986 · 3 incidents

November 19, 1986 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Hi-Grade Materials Co · Struck by flying object

EMPLOYEE WAS EN1AGED IN ASSISTING THE PLANT MANAGER REMOVE A SPROCKET OFF A SHAFT AT THE FEEDER. WHILE PRESSING THE SPROCKET IT BROKE AND A PIECE OF METAL HIT THE EMPLOYEES LEFT ARM.

August 23, 1986 CA · Metal/Non-Metal ledgeman/hand, quarry man HANDTOOLS (NONPOWERED)
Hi-Grade Materials Co · Fall from machine

EMP WAS ADJUSTI3G 4 FOOT CONE WITH A HYDRAULIC JACK. THE JACK HANDLE SLIPPED HE LOST HIS BALANCE AND FELL

January 2, 1986 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Hi-Grade Materials Co · Caught in, under or between (Not Elsewhere Classified)

BELT PULLEY WAS3'T TURNING. EMPLOYEE GRABBED AT PULLEY TO SEE IF IT WAS FROZEN. BELT PULLED GLAND FINGER OF EMPLOYEE THROUGH PULLEY-CUTTING END OF EMPLOYEE'S FINGER.

1985 · 2 incidents

March 19, 1985 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Hi-Grade Materials Co · Caught in, under or between (Not Elsewhere Classified)

WHILE LOWERING TRUCK BED WAS STANDING OUTSIDE CAB LEANING ON TOP DOOR WITH ARM PIT AND CAB SHIELD PINCHED SHOULDER

March 6, 1985 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Hi-Grade Materials Co · Struck by... (Not Elsewhere Classified)

WHILE GRINDING METAL PLATE WITHOUT GLASSES ON. SMALL PIECE OF METAL PENETRATED RT EYE BALL.

1984 · 1 incident

September 21, 1984 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Hi-Grade Materials Co · Caught in, under or between a moving and a stationary object

WHILE ATTEMPTING TO OPEN GATE O N PIT HOPPER AND CLEAR BOULDER IT MOVED & CAUSED GATE T O C LOST AND CAUGHT 5TH FINGER (PINKY) ON LEFT HAND CRUSHING IT POSSIBLE FRACTURE & CONTRUSIO NS RESULTING IN UNKNOWN LOSTTIME

For insurers, brokers, and safety consultants

The full compliance file on Lucerne Valley Pit

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.