Mining Incidents

Lost Hills Mining Metal/Non-Metal

Lost Hills, Kern County, CA  ·  Active
MSHA Mine ID: 0400929

Lost Hills Mining has $106K in proposed MSHA penalties and $303 outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
26
Years on record
1985–2025
Latest incident
Apr 2025
Compliance record
MSHA citations since 2000
93
citations
25
significant & substantial
$106,138
proposed penalties
$79,859
paid to date
75% of proposed penalties paid to date, a $26,279 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
70
inspections on record
1,234
inspection hours
7.5
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.
93 citations across 1,234 inspection hours.
Source: MSHA inspections data, updated weekly.

Lost Hills Mining has $106K in proposed MSHA penalties and $303 outstanding across 4 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.
$106K
proposed penalties
$80K
current assessed
$80K
paid to date
$303
outstanding
92 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2026-03-10.
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 9,571 0 0 0.0
2025 Q3 9,114 0 0 0.0
2025 Q2 9,471 0 0 0.0
2025 Q1 8,256 2 1 242.2
2024 Q4 10,584 0 0 0.0
2024 Q3 10,937 0 0 0.0
2024 Q2 11,904 3 1 252.0
2024 Q1 9,350 4 2 427.8
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 11,903 0 0 0.0
2023 Q3 12,058 3 1 248.8
2023 Q2 14,183 0 0 0.0
2023 Q1 10,479 9 1 858.9
2022 Q4 13,043 0 0 0.0
2022 Q3 11,526 0 0 0.0
2022 Q2 13,455 3 0 223.0
2022 Q1 9,619 11 5 1143.6
2021 Q4 14,155 0 0 0.0
2021 Q3 8,121 0 0 0.0
2021 Q2 8,132 5 0 614.9
2021 Q1 7,517 7 1 931.2
2020 Q4 2,943 0 0 0.0
2020 Q3 2,660 2 0 751.9
2020 Q2 12,185 0 0 0.0
2020 Q1 11,722 4 2 341.2
2019 Q4 12,136 0 0 0.0
2019 Q3 11,806 1 0 84.7
2019 Q2 11,646 1 1 85.9
2019 Q1 9,562 0 0 0.0
2018 Q4 9,142 0 0 0.0
2018 Q3 9,288 0 0 0.0
2018 Q2 9,226 2 0 216.8
2018 Q1 8,957 0 0 0.0
2017 Q4 7,150 4 4 559.4
2017 Q3 8,411 0 0 0.0
2017 Q2 8,422 2 2 237.5
2017 Q1 6,611 0 0 0.0
2016 Q4 8,478 0 0 0.0
2016 Q3 8,795 0 0 0.0
2016 Q2 8,400 0 0 0.0
2016 Q1 8,700 1 0 114.9
2015 Q4 10,187 0 0 0.0
2015 Q3 11,182 0 0 0.0
2015 Q2 11,542 0 0 0.0
2015 Q1 11,631 2 2 172.0
2014 Q4 11,155 0 0 0.0
2014 Q3 11,387 0 0 0.0
2014 Q2 10,444 0 0 0.0
2014 Q1 10,285 0 0 0.0
2013 Q4 11,371 0 0 0.0
2013 Q3 11,098 0 0 0.0
2013 Q2 11,375 1 1 87.9
2013 Q1 11,776 0 0 0.0
2012 Q4 11,713 1 1 85.4
2012 Q3 12,749 0 0 0.0
2012 Q2 10,618 0 0 0.0
2012 Q1 10,312 2 0 193.9
2011 Q4 10,619 0 0 0.0
2011 Q3 11,003 3 0 272.7
2011 Q2 11,007 0 0 0.0
2011 Q1 9,888 0 0 0.0
2010 Q4 9,678 0 0 0.0
2010 Q3 10,042 0 0 0.0
2010 Q2 8,238 0 0 0.0
2010 Q1 6,975 0 0 0.0
2009 Q4 7,540 1 0 132.6
2009 Q3 8,528 0 0 0.0
2009 Q2 7,227 0 0 0.0
2009 Q1 6,897 0 0 0.0
2008 Q4 7,065 0 0 0.0
2008 Q3 7,884 0 0 0.0
2008 Q2 7,996 0 0 0.0
2008 Q1 10,111 0 0 0.0
2007 Q4 10,083 0 0 0.0
2007 Q3 10,430 1 0 95.9
2007 Q2 9,986 0 0 0.0
2007 Q1 10,479 0 0 0.0
2006 Q4 11,212 0 0 0.0
2006 Q3 10,021 0 0 0.0
2006 Q2 9,869 0 0 0.0
2006 Q1 9,945 2 0 201.1
2005 Q4 9,525 0 0 0.0
2005 Q3 10,136 3 0 296.0
2005 Q2 10,136 0 0 0.0
2005 Q1 9,656 0 0 0.0
2004 Q4 9,147 1 0 109.3
2004 Q3 10,105 0 0 0.0
2004 Q2 10,341 0 0 0.0
2004 Q1 10,267 0 0 0.0
2003 Q4 10,146 0 0 0.0
2003 Q3 10,660 0 0 0.0
2003 Q2 9,824 3 0 305.4
2003 Q1 9,547 0 0 0.0
2002 Q4 9,004 0 0 0.0
2002 Q3 9,111 1 0 109.8
2002 Q2 9,775 4 0 409.2
2002 Q1 10,352 0 0 0.0
2001 Q4 9,746 0 0 0.0
2001 Q3 7,527 0 0 0.0
2001 Q2 8,461 0 0 0.0
2001 Q1 8,763 1 0 114.1
2000 Q4 8,399 0 0 0.0
2000 Q3 9,664 0 0 0.0
2000 Q2 9,515 0 0 0.0
2000 Q1 8,667 1 0 115.4
No fatalities recorded at this mine.

Reportable incidents

26 on file

2025 · 1 incident

April 29, 2025 CA · Metal/Non-Metal ball/rod/pebble/hand/limestone/dry mill operator, roller operator POWERED HAULAGE
Lost Hills Mining LLC · Caught in, under or between running or meshing objects

The employee was attempting to fix a cover over the hydraulic line connection between the wheels of a radial stacker while it was still in motion. The employee's right foot got caught by the rotating tires and was pinned under a mobile stacker tire and the surface. A possible broken bone in the right ankle/lower leg.

2023 · 1 incident

January 23, 2023 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Lost Hills Mining LLC · Contact with hot objects or substances

The miner was performing metal work on ramps. While welding overhead hot slag entered miner's boot burning the miner's foot. The employee waited approximately 2 weeks before mentioning that the foot got burned. Once management was notified of the burn employee was told to go directly to H.R and visit Doctor for evaluation.

2022 · 1 incident

April 20, 2022 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Lost Hills Mining LLC · Struck against a moving object

Operating a wheel loader traveling east toward the scalehouse on dirt road. While traveling loader bucket contacted ground causing loader bucket to dig into dirt and loader to come to an abrupt stop. Srape marks appear to begin 150 feet before loader stopped. Operator hit face on the windshield causing bloody nose and minor lacerations on face.

2020 · 2 incidents

August 12, 2020 CA · Metal/Non-Metal FIRE
H M Holloway Inc · Accident type, without injuries

EE loading material, noticed fluid spraying onto windscreen. Stopped machine, did not shut engine off. Called superintendent to notify them. Liquid ignited; EE evacuated machine, ran 20 yards away. Cab was engulfed. EE reported no warning, no problem prior to incident. EE not hurt, was examined. Fire dept. on scene 5-10 min. after called. Investigation being conducted.

May 9, 2020 CA · Metal/Non-Metal clerk, timekeeper, office worker, director of sales ALL OTHER OCCUPATIONAL ILLNESSES
H M Holloway Inc · (Not Elsewhere Classified)

Employee was diagnosed with pneumonia on 5/8/20. It turned to double pneumonia on 5/9/20. On 5/10/20 EE was informed they also had valley fever. On, 5-14-20, EE decided they were going to file a workman's comp. claim against the company, saying the valley fever was contracted at the mine. There's no evidence from the dr's that the valley fever came from the minesite.

2019 · 2 incidents

October 8, 2019 CA · Metal/Non-Metal clerk, timekeeper, office worker, director of sales OTHER
H M Holloway Inc · (Not Elsewhere Classified)

Admin employee was getting ready to leave for the day, went to use the restroom and had what we believe to be a heart attack.

August 30, 2019 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
H M Holloway Inc · Over-exertion (Not Elsewhere Classified)

Employee was standing on a ladder, putting DEF fluid in a scraper and the ladder shifted causing EE to twist EE's back

2018 · 1 incident

October 1, 2018 CA · Metal/Non-Metal miner, prospector, nec SLIP OR FALL OF PERSON
H M Holloway Inc · Fall from machine

EE was dismounting a loader, misjudged the steps and missed the last step. Injury was lower back strain NOTE: No lost time occurred until 9-6-2019 when we could no longer accommodate light duty work status

2015 · 1 incident

January 10, 2015 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
H M Holloway Inc · Struck against a moving object

Employee was loading his 210 Michigan scraper when he heard a loud pop from behind causing him to turn around quickly, straining his neck

2014 · 1 incident

January 10, 2014 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
H M Holloway Inc · Over-exertion in lifting objects

Employee was in the process of re-mounting a tire to the rear axle of a water truck. As he was positioning the tire with two bars underneath for leverage, he twisted his body, causing back pain.

2013 · 3 incidents

August 3, 2013 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
H M Holloway Inc · Struck against a moving object

Employee was operating a scraper when he got stuck, the rig started bouncing and hit his head in the cab. He received a cut to the top of his head.

July 26, 2013 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STEPPING OR KNEELING ON OBJECT
H M Holloway Inc · Struck against stationary object

Employee was walking down the stairs of the catwalk at the mill when he stepped on a rock and twisted his right ankle

July 12, 2013 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
H M Holloway Inc · Fall onto or against objects

Employee was exiting the New Holland skid-steer loader when he slipped causing him to hit his heel on the bucket of the loader.

2010 · 1 incident

June 21, 2010 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
H M Holloway Inc · Over-exertion (Not Elsewhere Classified)

EE was changing engine belts on the water truck (Unit 118).He dropped a socket and turned to grab it between the bumper and tire. When he tried to grab it he said "I felt something in my back pull".

2008 · 1 incident

February 19, 2008 CA · Metal/Non-Metal mechanic helper MACHINERY
H M Holloway Inc · Struck by... (Not Elsewhere Classified)

Employee was placing a whole saw bit in a hand drill. He had his left hand on the saw bit and pressed the start trigger, injuring his left hand.

2004 · 1 incident

July 26, 2004 CA · Metal/Non-Metal mechanic helper SLIP OR FALL OF PERSON
H M Holloway Inc · Fall onto or against objects

Employee was shoveling dirt off of a Michigan 210H scraper stinger when he slipped. He tried to catch himself hitting his right wrist on the tire.

2003 · 1 incident

September 25, 2003 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
H M Holloway Inc · Struck against stationary object

STANDING/ WORKING ON MACHINERY TURNED TO LEFT SIDE AND HIT LEFT KNEE.

2002 · 1 incident

August 2, 2002 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
H M Holloway Inc · Struck by falling object

EMPLOYEE WAS ATTEMPTING TO INSTALL A HYDRAULIC PUMP ON A MICHIGAN 210HB WHEN IT FELL INTO HIS LAP HURTING HIS BACK.

1998 · 1 incident

May 19, 1998 CA · Metal/Non-Metal welder (shop) MACHINERY
H M Holloway Inc · Struck by... (Not Elsewhere Classified)

HE WAS GRINDING AND WELDING ON A BRACKET FOR A 210H SELF-LOADING SCRAPER. HE THOUGHT HE HAD A FLASH FROM AN ARC WELDER BUT ENDED UP HAVING A METAL SHAVING IN IT INSTEAD.

1997 · 1 incident

December 29, 1997 CA · Metal/Non-Metal assistant mine foreman, assistant mine manager SLIP OR FALL OF PERSON
H M Holloway Inc · Fall from ladders

EMPLOYEE WAS WORKING FROM A 10' LADDER IN THE 5TH STEP REMOVING AN AIR CLEANER ASSY. OFF OF A MICHIGAN 210 SCARAPPER WHEN HE REMOVED THE LAST BOLT THE AIR CLEANER FELL STRIKING THE LADDER TIPP ING IT OVER. HE FELL ACROSS THE LADDER LEG WITH HIS CHEST. HE STRUCK HIS HEAD ON THE AIR CLEANER. AS A RESULT HE BROKE A RIB AND CUT HIS EAR AND ELBOW BOTH NEEDING STITCHES.

1993 · 1 incident

September 25, 1993 CA · Metal/Non-Metal mechanic helper HANDLING OF MATERIALS
H M Holloway Inc · Over-exertion in lifting objects

INJURED SLIPPED ON CAT WALK WHILE REACHING FOR A GUARD TO INSTALL ON THE FEEDER. AND HURT HIS HIP AT THAT TIME.

1991 · 1 incident

November 10, 1991 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
H M Holloway Inc · Over-exertion (Not Elsewhere Classified)

HE WAS IN ONE POSITION TOO LONE WHILE PUTTING A FUEL FILTER ON A MICHIGAN 210 SELFLOADER. THIS WAS NOT REPORTED UNTIL 12-10-91 BUT HAPPENED ON 11-10-91.

1990 · 1 incident

August 9, 1990 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
H M Holloway Inc · Over-exertion in lifting objects

THE INJURED PICKED UP A PUSHBAR TO PLACE ON125 LOADER AND TWISTED HIS BODY INJURING HIS RIGHT KNEE.

1989 · 2 incidents

April 18, 1989 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
H M Holloway Inc · Absorption of radiations, caustics, toxic and noxious substances

EMPL WS REMOVING BATTERY HEAVY BATTERY LANDED WITH HARD JAR CAUSING LID TO POP OPEN & BATTERY ACID TO FLY INTO LEFT EYE.

April 8, 1989 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
H M Holloway Inc · Fall onto or against objects

THE INJURED WAS NOT ON COMPANY EQUIPMENT NOR ON COMPANY PROPERTY.HE WAS PULLING HIS OWN TRAILER WITH HIS TRASH BARRELS.HE PLACED THE COMPANY TRASH DRUMS ON THE TRAILER ALONG SIDE HIS TRASH.AS HE WAS REMOVING A BARREL,HE FELL STRIKING HIS HIS HIP ON THE TRAILER.

1985 · 1 incident

March 25, 1985 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
H M Holloway Inc · Fall from machine

I,NAME JUMPED OFF A RIG AND HURT HIS BACK.

For insurers, brokers, and safety consultants

The full compliance file on Lost Hills Mining

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.