Mining Incidents

Buckeye Plant: 1 recorded fatality Metal/Non-Metal

Buckeye, Maricopa County, AZ  ·  Temporarily Idled
MSHA Mine ID: 0202320

Buckeye Plant has $5K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
13
Years on record
1986–2020
Latest incident
Jun 2020
Compliance record
MSHA citations since 2000
31
citations
13
significant & substantial
$4,963
proposed penalties
$4,963
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
31
inspections on record
350
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: 350 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Buckeye Plant has $5K in proposed MSHA penalties and $0 outstanding across 0 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.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
29 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2021-11-30.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
44.8%
significant & substantial
6.9%
high negligence or reckless
44.8%
reasonably likely or greater
62.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 24.1% low, 69.0% moderate, 6.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Metal and nonmetal contaminants (personal samples)
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.

Last sampled: 2025-01-14
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-01-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-01-14 Respirable dust, <.1mg 0 Complete Load-Haul-Dump
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
  1. Salt River Sand & Rock 1986 to present
  2. Salt River Materials Group 2008 to 2008
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2025 2
2024 2
2023 2
2022 1
2021 1
2020 0
2014 3
2013 3
2012 3
2011 2
2008 7
2007 14
2006 10
2005 11
2004 10
2003 5
2002 6
2001 5
2000 5
Source: MSHA quarterly employment and production, updated weekly.

Buckeye Plant sits in Maricopa County, Arizona, where the Census mining category is 0.2% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Maricopa County, Arizona · Population 4,491,987
0.2%
Mining share of county employment
$85,518
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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 544 0 0 0.0
2025 Q3 1,503 0 0 0.0
2025 Q2 1,450 0 0 0.0
2025 Q1 1,254 0 0 0.0
2024 Q4 1,078 0 0 0.0
2024 Q3 493 0 0 0.0
2024 Q2 489 0 0 0.0
2024 Q1 760 0 0 0.0
Show 58 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 1,387 0 0 0.0
2023 Q3 327 0 0 0.0
2023 Q2 399 0 0 0.0
2023 Q1 1,569 0 0 0.0
2022 Q4 51 0 0 0.0
2022 Q3 0 0 0
2022 Q2 94 0 0 0.0
2022 Q1 214 0 0 0.0
2021 Q4 146 3 0 20547.9
2021 Q3 0 0 0
2021 Q2 44 0 0 0.0
2020 Q4 0 0 0
2020 Q3 0 1 0
2014 Q3 772 0 0 0.0
2014 Q1 598 0 0 0.0
2013 Q3 62 0 0 0.0
2013 Q2 282 0 0 0.0
2013 Q1 470 0 0 0.0
2012 Q4 0 0 0
2012 Q3 134 0 0 0.0
2012 Q2 334 0 0 0.0
2012 Q1 518 0 0 0.0
2011 Q4 0 0 0
2011 Q3 176 0 0 0.0
2011 Q2 361 0 0 0.0
2008 Q1 2,153 0 0 0.0
2007 Q4 3,461 0 0 0.0
2007 Q3 3,225 0 0 0.0
2007 Q2 4,373 0 0 0.0
2007 Q1 5,386 4 2 742.7
2006 Q4 1,558 0 0 0.0
2006 Q3 3,886 1 0 257.3
2006 Q2 3,271 0 0 0.0
2006 Q1 3,055 0 0 0.0
2005 Q4 2,597 1 1 385.1
2005 Q3 2,498 0 0 0.0
2005 Q2 3,621 0 0 0.0
2005 Q1 3,496 1 0 286.0
2004 Q4 3,196 3 0 938.7
2004 Q3 3,664 0 0 0.0
2004 Q2 3,252 2 1 615.0
2004 Q1 2,454 1 0 407.5
2003 Q4 2,218 0 0 0.0
2003 Q3 2,055 1 1 486.6
2003 Q2 3,678 0 0 0.0
2003 Q1 1,390 1 1 719.4
2002 Q4 3,701 0 0 0.0
2002 Q3 2,557 0 0 0.0
2002 Q2 2,868 0 0 0.0
2002 Q1 2,136 0 0 0.0
2001 Q4 2,169 0 0 0.0
2001 Q3 2,267 0 0 0.0
2001 Q2 1,433 0 0 0.0
2001 Q1 1,472 0 0 0.0
2000 Q4 3,209 1 0 311.6
2000 Q3 2,993 0 0 0.0
2000 Q2 1,593 0 0 0.0
2000 Q1 1,476 0 0 0.0

Fatalities at this mine

1 recorded
June 13, 2020 AZ · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger Fatality · MACHINERY

Operator error. Failed to set crane up in digging mode. Employee did not set the travel locks prior to digging.

Reportable incidents

12 on file (excluding fatalities above)

2006 · 1 incident

October 3, 2006 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Salt River Sand & Rock · Struck against stationary object

Assisting in the installation of a genset and bumped his finger.

2005 · 1 incident

September 22, 2005 AZ · Metal/Non-Metal pumper HANDLING OF MATERIALS
Salt River Sand & Rock · Struck against stationary object

While adjusting the cone and wiping the number face of shim #4, the shim had a sharp sliver which went through his glove and cut his right index finger. At the time this employee did not feel he needed medical attention. On 10/05/05 he requested medical attention for this injury.

2004 · 2 incidents

July 23, 2004 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Salt River Sand & Rock · Struck by... (Not Elsewhere Classified)

A ROCK APPROXIMATELY 12' FELL OUT OF THE SCREEN AND HIT THE TOP OF HIS LEFT FOOT.

July 21, 2004 AZ · Metal/Non-Metal welder (shop) MACHINERY
Salt River Sand & Rock · Struck by flying object

HE WAS ASSISTING IN A LINER CHANGE AND WHILE REMOVING BOLTS HIS CO-WORKER WAS USING AN IMPACT GUN TO REMOVE THE BOLTS, SUDDENLY A NUT FLEW TOWARD HIM STRIKING HIN IN THE MOUTH.

2001 · 1 incident

December 12, 2001 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Salt River Sand & Rock · Over-exertion in pulling or pushing objects

AS HE WAS PULLING THE SCREEN BELT HE FELT A POP IN HIS LOWER BACK.

1999 · 2 incidents

July 21, 1999 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Salt River Sand & Rock · Struck by flying object

WHILE EE WAS PULLING REJECT ROCK FROM THE FEEDER. A ROCK FELL FROM THE BUCKET AND HIT THE BUCKET ARM AND WINDSHIELD, WHICH SENT SMALL PIECES OF GLASS INTO HIS FACE.

July 8, 1999 AZ · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Salt River Sand & Rock · Struck by... (Not Elsewhere Classified)

HE WAS SWINGING A HAMMER TO PUNCH HOLES IN BELTING. THE HAMMER HEAD CAME OFF AND HIT HIM ON HIS LEFT HAND FINGER.

1998 · 3 incidents

June 10, 1998 AZ · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator STEPPING OR KNEELING ON OBJECT
Salt River Sand & Rock · Over-exertion (Not Elsewhere Classified)

HE CRAWLED UNDERNEATH THE WATER PULL TO REPAIR THE FENDER. WHEN HE CAME OUT FORM UNDER THE ACHINE HE FELT A BAD PULL AND SHARP PAIN ON HIS R-GROIN AREA.

February 19, 1998 AZ · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler SLIP OR FALL OF PERSON
Salt River Sand & Rock · Over-exertion (Not Elsewhere Classified)

HE INJURED HIS KNEE WHILE TURNING TO THE LEFT AND WHILE GETTING OUT OF THE LUBE TRUCK.

January 10, 1998 AZ · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator DISORDERS (PHYSICAL AGENTS)
Salt River Sand & Rock · Flash burns (welding)

HE WAS WELDING A PLATE ON CRUSHER #6 FEEDER. EMPLOYEE WAS GRINDING ON THE OTHER SIDE OF THE PLATE. EMPLOYEE WAS GETTING THE FLASH FROM THE WELDER.

1987 · 1 incident

April 8, 1987 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Salt River Sand & Rock · Fall onto or against objects

EMPLOYEE SLIPPE8 ON PULLEY COVER & FELL ON HOPPER CUTTING HIS RT SHIN

1986 · 1 incident

August 15, 1986 AZ · Metal/Non-Metal HANDLING OF MATERIALS
Salt River Sand & Rock · Over-exertion in lifting objects

EE WAS LIFTING 7UTTING EDGE TO MOVE IT OUT OF THE WAY. EE IS SCHEDULED FOR HERNIA OPERATION & HIS LAST DAY WORKED WAS 9-12-86. WE WILL NOTIFY YOU UPON HIS RETURN TO DUTY.