Mining Incidents

Hughson Aggregates Metal/Non-Metal

Hughson, Stanislaus County, CA  ·  Active
MSHA Mine ID: 0401769

Hughson Aggregates has $28K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
13
Years on record
1988–2018
Latest incident
Aug 2018
Compliance record
MSHA citations since 2000
105
citations
33
significant & substantial
$28,351
proposed penalties
$27,313
paid to date
96% of proposed penalties paid to date, a $1,038 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
60
inspections on record
867
inspection hours
n/a
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.
Rate withheld: 867 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Hughson Aggregates has $28K in proposed MSHA penalties and $0 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.
$28K
proposed penalties
$27K
current assessed
$27K
paid to date
$0
outstanding
105 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2025-03-03.
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 1,386 0 0 0.0
2025 Q3 1,095 0 0 0.0
2025 Q2 2,871 0 0 0.0
2025 Q1 2,931 2 0 682.4
2024 Q4 3,707 0 0 0.0
2024 Q3 3,672 0 0 0.0
2024 Q2 3,602 0 0 0.0
2024 Q1 2,966 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 4,729 0 0 0.0
2023 Q3 3,924 0 0 0.0
2023 Q2 5,190 0 0 0.0
2023 Q1 4,752 0 0 0.0
2022 Q4 4,025 0 0 0.0
2022 Q3 4,486 0 0 0.0
2022 Q2 5,297 0 0 0.0
2022 Q1 4,015 1 0 249.1
2021 Q4 4,071 0 0 0.0
2021 Q3 5,657 1 0 176.8
2021 Q2 5,032 0 0 0.0
2021 Q1 4,086 1 0 244.7
2020 Q4 3,319 0 0 0.0
2020 Q3 3,957 3 0 758.2
2020 Q2 3,160 0 0 0.0
2020 Q1 3,619 0 0 0.0
2019 Q4 3,267 0 0 0.0
2019 Q3 5,245 0 0 0.0
2019 Q2 4,125 6 3 1454.5
2019 Q1 3,880 0 0 0.0
2018 Q4 3,273 6 2 1833.2
2018 Q3 3,222 4 1 1241.5
2018 Q2 4,774 0 0 0.0
2018 Q1 4,308 1 0 232.1
2017 Q4 4,273 0 0 0.0
2017 Q3 4,051 0 0 0.0
2017 Q2 4,492 3 1 667.9
2017 Q1 4,544 0 0 0.0
2016 Q4 3,740 0 0 0.0
2016 Q3 4,234 0 0 0.0
2016 Q2 3,937 2 1 508.0
2016 Q1 3,257 2 0 614.1
2015 Q4 3,120 0 0 0.0
2015 Q3 2,739 3 0 1095.3
2015 Q2 2,179 0 0 0.0
2015 Q1 2,944 0 0 0.0
2014 Q4 3,759 0 0 0.0
2014 Q3 4,385 0 0 0.0
2014 Q2 4,215 14 6 3321.5
2014 Q1 4,128 0 0 0.0
2013 Q4 4,376 0 0 0.0
2013 Q3 4,218 1 0 237.1
2013 Q2 3,693 0 0 0.0
2013 Q1 3,483 0 0 0.0
2012 Q4 3,234 0 0 0.0
2012 Q3 3,386 0 0 0.0
2012 Q2 2,109 3 0 1422.5
2012 Q1 2,287 3 1 1311.8
2011 Q4 3,613 0 0 0.0
2011 Q3 4,672 0 0 0.0
2011 Q2 3,926 2 0 509.4
2011 Q1 3,335 0 0 0.0
2010 Q4 3,685 5 2 1356.9
2010 Q3 3,805 0 0 0.0
2010 Q2 3,891 4 3 1028.0
2010 Q1 3,142 0 0 0.0
2009 Q4 3,869 5 2 1292.3
2009 Q3 3,926 2 1 509.4
2009 Q2 2,065 0 0 0.0
2009 Q1 2,549 2 1 784.6
2008 Q4 2,330 0 0 0.0
2008 Q3 4,202 2 0 476.0
2008 Q2 5,382 0 0 0.0
2008 Q1 5,836 0 0 0.0
2007 Q4 4,944 0 0 0.0
2007 Q3 5,626 0 0 0.0
2007 Q2 5,633 0 0 0.0
2007 Q1 5,371 1 0 186.2
2006 Q4 5,863 0 0 0.0
2006 Q3 6,662 0 0 0.0
2006 Q2 5,919 7 3 1182.6
2006 Q1 5,947 1 1 168.2
2005 Q4 6,637 0 0 0.0
2005 Q3 7,463 0 0 0.0
2005 Q2 7,160 0 0 0.0
2005 Q1 6,288 0 0 0.0
2004 Q4 5,692 0 0 0.0
2004 Q3 6,125 0 0 0.0
2004 Q2 6,031 0 0 0.0
2004 Q1 5,765 3 0 520.4
2003 Q4 6,124 0 0 0.0
2003 Q3 5,857 2 2 341.5
2003 Q2 5,795 0 0 0.0
2003 Q1 5,806 0 0 0.0
2002 Q4 6,147 3 2 488.0
2002 Q3 6,695 0 0 0.0
2002 Q2 6,292 0 0 0.0
2002 Q1 6,291 2 0 317.9
2001 Q4 7,245 0 0 0.0
2001 Q3 7,474 0 0 0.0
2001 Q2 6,267 5 1 797.8
2001 Q1 6,837 0 0 0.0
2000 Q4 7,300 2 0 274.0
2000 Q3 7,596 0 0 0.0
2000 Q2 6,566 1 0 152.3
2000 Q1 5,315 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

13 on file

2018 · 1 incident

August 15, 2018 CA · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDTOOLS (NONPOWERED)
Calaveras Materials LLC · Struck by... (Not Elsewhere Classified)

Employee was using a locking blade utility knife to cut a section of urethane. The employee cut into the material and the utility knife got stuck. The employee started to twist the knife and extra force to cut the material. The knife slipped and the employee was not able to stop the knife before it struck the employee's arm causing a laceration to wrist area.

2017 · 1 incident

May 15, 2017 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Calaveras Materials LLC · Struck by... (Not Elsewhere Classified)

While working on Simons Crusher the miner was loosening the bolts to the crusher spring pack when the bottle jack supporting the spring pack bottom plate displaced out towards the miner from the bottom of the spring pack plate striking the minor on the left forearm.

2011 · 1 incident

September 29, 2011 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Calaveras Materials LLC · Struck by falling object

Unknown rock or debris falling down chute into work area. Striking Employee in Genitals area causing a contusion.

2002 · 1 incident

April 2, 2002 CA · Metal/Non-Metal driller, highwall operator, highwall drill operator SLIP OR FALL OF PERSON
Calaveras Materials LLC · Fall from scaffolds, walkways, platforms

WALKING ON CATWALK GOING TO CONTROL ROOM SLIPPED OFF CATWALK AND FELL AGAINST HANDRAIL.

2000 · 1 incident

April 14, 2000 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Calaveras Materials LLC · Struck by... (Not Elsewhere Classified)

EE WAS LIFTING SCREEN TO WORK ON REPAIR WHEN HECCUT HIS LEFT FOREARM

1996 · 1 incident

January 18, 1996 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Calaveras Materials Inc · Struck by... (Not Elsewhere Classified)

THE EE HAD A FOREIGN BODY BLOW INTO EYE WHILE PERFORMED REGULAR WORK OINTMENT FOR PREVENTIVE INFECTION MEASURES WAS PERCRIBED.

1994 · 1 incident

December 14, 1994 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Calaveras Materials Inc · Over-exertion in pulling or pushing objects

THE EMPLOYEE WAS PULLING ON A CABLE TO BE INSTALLED ON HIGH LINER.

1991 · 1 incident

May 10, 1991 CA · Metal/Non-Metal belt foreman, maintenance foreman, maintenance supervisor HANDLING OF MATERIALS
Calaveras Materials Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS REMOVING METAL SIDING FROM OLD BUILDING WHEN SOMETHING HITHIM IN THE EYE CAUSING ABRASION TO THE LEFT EYE

1990 · 2 incidents

July 7, 1990 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Calaveras Materials Inc · Fall to lower level, (Not Elsewhere Classified)

THE EMPLOYEE WAS PUTTING THE SHORT HEAD CRUSHER BACK TOGETHER WHEN HE SLIPPED AND FELL FROM THE CRUSHER ONTON CATWALK. THE EMPLOYEE RECEIVED INJURY TO THE LEFT ANKLE.

June 20, 1990 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger MACHINERY
Calaveras Materials Inc · Fall from machine

THE EMPLOYEE WAS OPERATING A DRAGLINE STRIPPING OVERBURDEN WHEN THE DRAGLINE STARTED TOMOVE DOWN THE EMBANKMENT. THE EMPLOYEE COULD NOT STOP THE DRAGLINE SO HE JUMPED OFF THE MACHINE BEFORE IT WENT OVER THE DROP OFF.

1989 · 1 incident

November 11, 1989 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Calaveras Materials Inc · Caught in, under or between (Not Elsewhere Classified)

INJURED EMPL WAS HELPING ANOTHER EMPL REPLACE V BELT AROUND SHEAVE ON SHAKER SCREEN. WHEN V BLET WENT INTO PLACE ON SHEAVE EMPL GOT FINGER CAUGHT BETWEEN SHEAVE & V BELT.

1988 · 2 incidents

December 12, 1988 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger SLIP OR FALL OF PERSON
Calaveras Materials Inc · Fall from machine

EMPL CLIMBED DOWN FROM DRAGLINE,SLIPPED & FELL ON TRACK OF DRAGLINE -CRACKED RIB AND BRUISED RIB CAGE.

December 10, 1988 CA · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
Calaveras Materials Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS STRIPING INSULATING FROM ELECTRICAL WIRE WHEN HIS KNIFE SLIPPED CAUSING LACERATION TO LEFT HAND LACERATION WAS CLEANED & SUTURED & THE EMPLOYEE RETURNED TO WORK

For insurers, brokers, and safety consultants

The full compliance file on Hughson Aggregates

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.