Mining Incidents

Little Mountain Metal/Non-Metal

Kilgore Contracting · Surface
Controlled by Summit Materials LLC
Corinne, Box Elder County, UT  ·  Intermittent
MSHA Mine ID: 4200400

Little Mountain has $87K in proposed MSHA penalties and $13K outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
18
Years on record
1986–2022
Latest incident
Dec 2022
Compliance record
MSHA citations since 2000
230
citations
69
significant & substantial
$86,999
proposed penalties
$72,699
paid to date
84% of proposed penalties paid to date, a $14,300 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
88
inspections on record
1,349
inspection hours
17.0
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.
230 citations across 1,349 inspection hours.
Source: MSHA inspections data, updated weekly.

Little Mountain has $87K in proposed MSHA penalties and $13K outstanding across 3 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.
$87K
proposed penalties
$86K
current assessed
$73K
paid to date
$13K
outstanding
225 assessments are final orders; 3 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 0 0 0
2024 Q1 832 0 0 0.0
2023 Q4 8 3 1 375000.0
2023 Q3 10,964 0 0 0.0
2023 Q2 9,695 9 6 928.3
2023 Q1 7,296 9 4 1233.6
2022 Q4 9,330 1 1 107.2
2022 Q3 10,597 6 0 566.2
Show 90 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2022 Q2 10,197 0 0 0.0
2022 Q1 8,878 2 0 225.3
2021 Q4 8,659 0 0 0.0
2021 Q3 8,711 2 1 229.6
2021 Q2 8,248 0 0 0.0
2021 Q1 6,798 0 0 0.0
2020 Q4 7,768 1 0 128.7
2020 Q3 8,752 0 0 0.0
2020 Q2 7,151 1 0 139.8
2020 Q1 6,351 0 0 0.0
2019 Q4 7,820 1 1 127.9
2019 Q3 7,885 0 0 0.0
2019 Q2 6,296 0 0 0.0
2019 Q1 4,598 0 0 0.0
2018 Q4 5,523 0 0 0.0
2018 Q3 6,952 0 0 0.0
2018 Q2 6,997 2 0 285.8
2018 Q1 5,581 0 0 0.0
2017 Q4 6,662 0 0 0.0
2017 Q3 7,609 0 0 0.0
2017 Q2 6,152 1 0 162.5
2017 Q1 3,839 0 0 0.0
2016 Q4 5,306 3 2 565.4
2016 Q3 5,317 0 0 0.0
2016 Q2 6,037 1 0 165.6
2016 Q1 4,417 3 0 679.2
2015 Q4 4,009 0 0 0.0
2015 Q3 4,312 0 0 0.0
2015 Q2 6,543 1 0 152.8
2015 Q1 5,027 0 0 0.0
2014 Q4 6,996 0 0 0.0
2014 Q3 7,268 0 0 0.0
2014 Q2 6,205 0 0 0.0
2014 Q1 2,465 0 0 0.0
2013 Q4 5,723 0 0 0.0
2013 Q3 4,985 0 0 0.0
2013 Q2 6,241 2 0 320.5
2013 Q1 3,631 1 0 275.4
2012 Q4 5,923 0 0 0.0
2012 Q3 6,321 4 2 632.8
2012 Q2 5,415 0 0 0.0
2012 Q1 4,365 0 0 0.0
2011 Q4 4,540 1 0 220.3
2011 Q3 5,107 0 0 0.0
2011 Q2 2,502 7 5 2797.8
2011 Q1 7,665 7 3 913.2
2010 Q4 7,664 0 0 0.0
2010 Q3 10,042 0 0 0.0
2010 Q2 10,625 10 3 941.2
2010 Q1 6,089 4 1 656.9
2009 Q4 7,302 0 0 0.0
2009 Q3 7,636 4 0 523.8
2009 Q2 7,351 0 0 0.0
2009 Q1 6,036 2 0 331.3
2008 Q4 9,798 0 0 0.0
2008 Q3 6,823 0 0 0.0
2008 Q2 6,205 6 0 967.0
2008 Q1 3,723 0 0 0.0
2007 Q4 7,144 12 0 1679.7
2007 Q3 6,750 0 0 0.0
2007 Q2 8,242 0 0 0.0
2007 Q1 8,135 0 0 0.0
2006 Q4 8,006 0 0 0.0
2006 Q3 9,464 5 3 528.3
2006 Q2 9,964 0 0 0.0
2006 Q1 9,498 14 8 1474.0
2005 Q4 8,769 0 0 0.0
2005 Q3 12,263 6 3 489.3
2005 Q2 10,787 0 0 0.0
2005 Q1 8,513 6 2 704.8
2004 Q4 10,272 0 0 0.0
2004 Q3 11,193 6 0 536.0
2004 Q2 10,933 0 0 0.0
2004 Q1 9,342 8 1 856.3
2003 Q4 10,530 0 0 0.0
2003 Q3 9,473 8 0 844.5
2003 Q2 17,320 1 1 57.7
2003 Q1 12,315 8 1 649.6
2002 Q4 16,250 0 0 0.0
2002 Q3 19,352 12 2 620.1
2002 Q2 18,846 0 0 0.0
2002 Q1 11,572 7 1 604.9
2001 Q4 9,515 4 1 420.4
2001 Q3 11,925 22 10 1844.9
2001 Q2 12,249 0 0 0.0
2001 Q1 8,154 0 0 0.0
2000 Q4 8,308 0 0 0.0
2000 Q3 9,573 0 0 0.0
2000 Q2 1,368 0 0 0.0
2000 Q1 5,824 12 5 2060.4
No fatalities recorded at this mine.

Reportable incidents

18 on file

2022 · 1 incident

December 12, 2022 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Kilgore Contracting · Fall to the walkway or working surface

Employee was walking to the maintenance truck to begin running welding leads to the work at the belt hopper. The employee tripped and fell on left hand, fracturing left wrist.

2007 · 1 incident

November 15, 2007 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Salt Lake Valley Sand & Gravel · Fall from machine

Victim climbed approx. 3 feet up crusher cribbing and fell to the concrete head first Witness to the accident says he went limp before he fell. He had a small cut at the hair line and a bloody nose. Eyes were not dilated. He said his only pain was a headache.

2006 · 1 incident

January 9, 2006 UT · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Salt Lake Valley Sand & Gravel · Caught in, under or between (Not Elsewhere Classified)

A ROCK WAS WEDGED BETWEEN THE TAILGATE OF THE TRUCK AND EE TRIED TO REMOVE IT BY LIFTING THE GATE BY HAND INSTEAD OF RAISING THE BED. THE GATE CLOSED ON THE TIPS OF HIS LEFT FINGERS AND CRUSHED THEM BETWEEN THE GATE & SEALING EDGE WHICH CUT OF 2 FINGER TIPS

2005 · 1 incident

June 21, 2005 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Salt Lake Valley Sand & Gravel · Fall from machine

The operator was exiting a front end loader. When he turned to climb down ladder, his foot caught on step. He fell backwards to ground.

2003 · 1 incident

August 29, 2003 UT · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider SLIP OR FALL OF PERSON
Salt Lake Valley Sand & Gravel · Fall from machine

OPERATOR WAS DISCONNECTING MOTOR FROM GEAR BOX ON CONVEYOR APPROX. 5 FT OFF GROUND. HE UNHOOKED SAFETY LANIARD AND STARTED TO CLIMB DOWN. HE SLIPPED AND FELL ON HIS ARM AND BACK SIDE. IT WAS D ETERMINED WITH A DR VISIT THAT HIS LEFT WRIST WAS BROKEN, AND POSSIBLE BACK INJURY.

2002 · 1 incident

January 4, 2002 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Salt Lake Valley Sand & Gravel · Caught in, under or between (Not Elsewhere Classified)

EES WERE REPLACING GEAR BOX ON MAIN FEED CONVEYOR. THE LIFTING EYE BROKE, LETTING THE BOX ROLL SIDEWAYS. WHEN THE BOX ROLLED, IT PINNED EE'S FINGER BETWEEN PIPE & BOX. EE'S FINGER WAS SCRAPED RESULTING IN TWO STITCHES.

2001 · 1 incident

November 8, 2001 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech ELECTRICAL
Salt Lake Valley Sand & Gravel · Contact with electrical current

CRANE EXTENDED BOOM COMING IN CONTACT WITH OVERHEAD POWER LINES. WHEN THIS HAPPENED, EE WAS ELECTROCUTED WHILE STANDING IN THE TRAILER. DAMAGE TO BOTH ARMS, TORSO, HEAD, LEG. EXTENT AS YET UNK NOWN.

1998 · 1 incident

August 31, 1998 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Salt Lake Valley Sand & Gravel · Struck by... (Not Elsewhere Classified)

LOWERING BONNET ON TOP OF CRUSHER WITH CRANE WHEN BONNETT CAME APART. LOWER PART OF BONNET (1/2 STEEL PLATE) FELL 18" AND LANDED ON RIGHT BIG TOE

1997 · 1 incident

October 3, 1997 UT · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Salt Lake Valley Sand & Gravel · Struck by flying object

EE WAS SPLICING A CONVEYOR. WHENHE WAS POUNDING THE BELT PUNCH THROUGH THE CONVEYOR BELT, THE PUNCH BROKE OFF. ONE END FLIPPED UP & HIT HIS FACE ON THE CORNER OF HIS EYE. HE RECEIVED A SMALL S UPERFICIAL CUT ON FACE.

1996 · 4 incidents

December 9, 1996 UT · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDTOOLS (NONPOWERED)
Salt Lake Valley Sand & Gravel · Struck by... (Not Elsewhere Classified)

EE WAS CLEANIGN OUT UNDER CONVEYOR. HE KNOCKED DIRED FROM A RETURN ROLLER WITH A SHOVEL. THE SHOVEL ROLLED OVER THE ROLLER FLIPPING THE END OF THE HANDLE AGAINST HIS FACE. HE RECEIVED A SMA LL CUT OVE HIS LIP ON THE LEFT SIDE OF HIS FACE.

August 17, 1996 UT · Metal/Non-Metal welder (shop) SLIP OR FALL OF PERSON
Salt Lake Valley Sand & Gravel · Fall from machine

JUMPED FROM TOP OF CRUSHER ONTO THE SCREEN WALKWAY, BUT THE WALKWAY WAS MISSING A SECTION OF EXPANDED METAL THEREFORE I FELL TO THE GROUND ON MY BACK AND NOTICED THE EXPANDED METAL HAD RIPPED MY ARM.

March 29, 1996 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Salt Lake Valley Sand & Gravel · Struck by falling object

EE WAS UNLOADING I BEAMS FROM A TRAILER. THE CHAIN WAS NOT HOOKED PROPERLY TO SECURE LOAD. WHEN THE CRANE LIFTED THE BEAM, THE CHAIN CAME OFF LETTING THE BEAM SLIDE AGAINST HIS RIGHT LEG. THE BEAM SCRAPED SOME SKIN FROM HIS RIGHT SHIN.

February 21, 1996 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Salt Lake Valley Sand & Gravel · Struck by... (Not Elsewhere Classified)

TWO MECHANICS WERE TIGHTENING FRAME BOLTS ON A CEMENT TRUCK ONE WAS HOLDING A WRENCH THE OTHER AN IMPACT GUN WHEN EE S TURNED ON THE GUN IT PULLED THE END WRENCH FROM THE OTHER MECH. HANDS THE WRENCH HIT EE ABOVE THE LEFT EYE, CAUSING A SMALL CUT, REGUIRING 4 STITCHES.

1995 · 2 incidents

February 25, 1995 UT · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Salt Lake Valley Sand & Gravel · Fall from machine

HE WAS FUELING LOADER. WHEN HE FINISHED HE WAS CLIMBING DOWN LADDER ON MACHINE. HIS FOOT SLIPPED ON BOTTOM STEP AND HE DROPPED 2 FEET TO GROUND, LANDING OFF BALANCE ON LEFT FOOT, STRAINING LIG AMENTS IN HIS KNEE.

1987 · 2 incidents

May 28, 1987 UT · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider SLIP OR FALL OF PERSON

HE WAS PUTTING 5 TARP RUBBER AROUND THE DOOR ON THE LOADER SO IT WOULD STAY OPEN THE T ARP RUBBER BROKE & HE FELL OFF THE FENDER LANDING ON HIS TAIL BONE

May 20, 1987 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Salt Lake Valley Sand & Gravel Company · Caught in, under or between (Not Elsewhere Classified)

100 FOOT ROLL O0 BELT FELL DOWN FROM SUPPORT CABLE.IT HIT THE INJURED AND KNOCKED HIM OFF THE CONVEYOR.HIS LEG GOT CAUGHT AND HELD HIM FROM FALLING TO THE GROUND.

1986 · 1 incident

August 18, 1986 UT · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON

EMPLOYEE CLIMBE8 UP ON LOADER WHEEL TO CHECK THE OIL AND SLIPPED OFF AS THE EMPLOYEE FELL HE HIT A TELEPHONE POLE THAT WAS LAYING ON THE GROUND POSSIBLE BROKEN HIP

For insurers, brokers, and safety consultants

The full compliance file on Little Mountain

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.