Mining Incidents

1010 Queen Creek #1: 102 MSHA citations Metal/Non-Metal

Controlled by Arcosa, Inc
Gilbert, Pinal County, AZ  ·  Abandoned
MSHA Mine ID: 0202821

1010 Queen Creek #1 has $23K in proposed MSHA penalties and $0 outstanding across 16 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
20
Years on record
2006–2023
Latest incident
Mar 2023
Compliance record
MSHA citations since 2001
102
citations
29
significant & substantial
$23,360
proposed penalties
$18,525
paid to date
79% of proposed penalties paid to date, a $4,835 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
78
inspections on record
829
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: 829 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

1010 Queen Creek #1 has $23K in proposed MSHA penalties and $0 outstanding across 16 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.
$23K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
101 assessments are final orders; 16 contested dockets.
Of $11K in penalties contested before the Commission, $5K was upheld in final decisions.
As of the most recent assessment on 2023-11-06.
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.
28.7%
significant & substantial
7.9%
high negligence or reckless
27.7%
reasonably likely or greater
43.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 6.9% low, 85.1% moderate, 7.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
30 citations taken to the federal commission · 29% of citations on record
  • Settled 20 · 67%
  • Stood as issued 5 · 17%
  • Vacated or withdrawn 5 · 17%
54%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 13 decided S&S contests · industry: 79%
54%
Penalty reduction in decided contests
$11K proposed, $5K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2023-02-07.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEST 2018-0191 Settlement Miller 2018 $5K → $952
WEST 2022-0195 Withdrawal Simonton 2022 $1K → $133
WEST 2022-0284 Default 2022 $1K → $1K
WEST 2016-0608 Settlement Miller 2016 $686 → $417
WEST20020340M Settlement Manning 2002 $500 → $400
WEST 2015-0722 Settlement Lesnick 2016 $492 → $492
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2021-09-29, 4 years ago
25%
of limit-tested samples over the exposure limit
14
samples
4
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz31 over
  • Respirable dust, <.1mg10
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (14)
Date Contaminant Concentration Limit Conc / limit Occupation
2012-04-19 Quartz, respirable, >1% Qtz 0.37 0.37 1.00 Crusher Oper/Worker
2021-09-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-09-29 Respirable dust, <.1mg 0 Laborer, Bullgang
2021-09-29 Respirable dust, <.1mg 0 Washer Operator
2018-09-11 Nuisance dust, respirable, <1% Qtz 0.19 10 0.02 Washer Operator
2016-11-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-11-08 Quartz, respirable, >1% Qtz 0.24 1.16 0.21 Washer Operator
2013-11-19 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-11-19 Respirable dust, <.1mg 0 Laborer, Bullgang
2012-04-19 Respirable dust, <.1mg 0 Mechanic
2012-04-19 Respirable dust, <.1mg 0 Washer Operator
2007-10-30 Respirable dust, <.1mg 0 Crusher Oper/Worker
2007-10-30 Respirable dust, <.1mg 0 Mechanic
2007-10-30 Quartz, respirable, >1% Qtz 0.14 0.66 0.21 Dry Screen Plant Operator
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.

1010 Queen Creek #1 recorded 3.31 reportable injury cases per 100 full-time workers in 2023.

Injury rate, 2023
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
3.31
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.78 and the all-US-mining average was 2.10 cases per 100 workers.
In Arizona, metal and nonmetal mining averaged 2.62 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2023 * 3.31 0.00 0.000
2022 * 2.79 2.79 0.000
2021 * 8.24 0.00 0.000
2020 * 2.48 2.48 0.000
2019 * 12.26 12.26 0.000
2018 * 5.89 5.89 0.000
2017 * 0.00 0.00 0.000
2016 * 8.66 8.66 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Southwest Rock Products LLC 1999 to 2014
  2. CalMat Co 2014 to 2014
  3. Southwest Rock Products 2014 to 2022
  4. Arcosa Aggregates West, LLC. 2022 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2024 27
2023 32
2022 34
2021 35
2020 38
2019 37
2018 33
2017 32
2016 33
2015 29
2014 32
2013 41
2012 29
2011 12
2010 15
2009 19
2008 21
2007 30
2006 22
2005 19
2004 17
2003 16
2002 16
2001 10
2000 6
Source: MSHA quarterly employment and production, updated weekly.

1010 Queen Creek #1 sits in Pinal County, Arizona, where the Census mining category is 0.8% 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.
Pinal County, Arizona · Population 449,219
0.8%
Mining share of county employment
$77,588
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
2024 Q1 13,802 0 0 0.0
2023 Q4 13,465 2 0 148.5
2023 Q3 15,250 0 0 0.0
2023 Q2 16,109 7 3 434.5
2023 Q1 15,661 0 0 0.0
2022 Q4 15,869 3 0 189.0
2022 Q3 20,176 0 0 0.0
2022 Q2 20,038 2 1 99.8
Show 88 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2022 Q1 15,705 0 0 0.0
2021 Q4 18,375 2 1 108.8
2021 Q3 14,808 1 1 67.5
2021 Q2 19,489 0 0 0.0
2021 Q1 20,123 0 0 0.0
2020 Q4 19,120 0 0 0.0
2020 Q3 21,010 0 0 0.0
2020 Q2 20,421 0 0 0.0
2020 Q1 19,998 1 1 50.0
2019 Q4 18,813 2 1 106.3
2019 Q3 20,016 0 0 0.0
2019 Q2 21,369 0 0 0.0
2019 Q1 21,340 0 0 0.0
2018 Q4 16,848 0 0 0.0
2018 Q3 17,888 3 0 167.7
2018 Q2 18,690 0 0 0.0
2018 Q1 14,503 0 0 0.0
2017 Q4 15,353 4 1 260.5
2017 Q3 15,288 1 0 65.4
2017 Q2 16,737 0 0 0.0
2017 Q1 16,806 0 0 0.0
2016 Q4 17,994 4 0 222.3
2016 Q3 17,811 0 0 0.0
2016 Q2 18,212 9 3 494.2
2016 Q1 15,263 7 2 458.6
2015 Q4 18,899 7 1 370.4
2015 Q3 15,119 0 0 0.0
2015 Q2 11,436 2 1 174.9
2015 Q1 11,293 0 0 0.0
2014 Q4 10,589 1 1 94.4
2014 Q3 14,314 0 0 0.0
2014 Q2 13,625 2 0 146.8
2014 Q1 15,101 0 0 0.0
2013 Q4 13,140 2 0 152.2
2013 Q3 17,605 3 2 170.4
2013 Q2 21,327 0 0 0.0
2013 Q1 13,538 1 1 73.9
2012 Q4 14,055 0 0 0.0
2012 Q3 14,209 2 0 140.8
2012 Q2 12,654 6 2 474.2
2012 Q1 9,471 5 0 527.9
2011 Q4 9,840 0 0 0.0
2011 Q3 9,505 0 0 0.0
2011 Q2 3,872 0 0 0.0
2011 Q1 3,094 0 0 0.0
2010 Q4 9,836 0 0 0.0
2010 Q3 7,793 1 0 128.3
2010 Q2 8,016 0 0 0.0
2010 Q1 5,835 0 0 0.0
2009 Q4 7,038 0 0 0.0
2009 Q3 8,426 0 0 0.0
2009 Q2 9,198 2 0 217.4
2009 Q1 12,150 1 0 82.3
2008 Q4 11,094 0 0 0.0
2008 Q3 13,906 0 0 0.0
2008 Q2 13,811 0 0 0.0
2008 Q1 8,256 0 0 0.0
2007 Q4 12,115 5 0 412.7
2007 Q3 11,849 0 0 0.0
2007 Q2 14,470 0 0 0.0
2007 Q1 14,956 0 0 0.0
2006 Q4 16,161 1 0 61.9
2006 Q3 14,856 1 0 67.3
2006 Q2 14,702 0 0 0.0
2006 Q1 14,451 0 0 0.0
2005 Q4 13,005 0 0 0.0
2005 Q3 12,134 0 0 0.0
2005 Q2 11,236 0 0 0.0
2005 Q1 11,687 0 0 0.0
2004 Q4 12,229 0 0 0.0
2004 Q3 11,846 0 0 0.0
2004 Q2 15,595 0 0 0.0
2004 Q1 9,102 5 2 549.3
2003 Q4 8,581 0 0 0.0
2003 Q3 9,241 0 0 0.0
2003 Q2 10,426 0 0 0.0
2003 Q1 8,661 1 0 115.5
2002 Q4 9,461 0 0 0.0
2002 Q3 7,492 0 0 0.0
2002 Q2 5,982 0 0 0.0
2002 Q1 8,432 2 1 237.2
2001 Q4 8,258 0 0 0.0
2001 Q3 7,427 0 0 0.0
2001 Q2 6,274 3 3 478.2
2001 Q1 8,081 0 0 0.0
2000 Q4 6,065 0 0 0.0
2000 Q3 4,381 0 0 0.0
2000 Q2 3,315 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

20 on file

2023 · 1 incident

March 25, 2023 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker HANDTOOLS (NONPOWERED)
Arcosa Aggregates West, LLC. · Struck against stationary object

Employee was barring out the cone. Material gave way suddenly and employee hit arm against the cone. Received x-ray after continued pain and was diagnosed with a fracture. Reportable as of 3/30.

2022 · 1 incident

September 21, 2022 AZ · Metal/Non-Metal water truck operator MACHINERY
Southwest Rock Products · Contact with hot objects or substances

EE was using the power washer to clean the concrete area where the water truck fills up. It is believed that EE was spraying off EE's work boots (an unsafe act) when the hot pressurized water entered the top of EE's boots and hurt EE's ankle.

2021 · 3 incidents

July 7, 2021 AZ · Metal/Non-Metal washer operator, sizing operator DISORDERS (PHYSICAL AGENTS)
Southwest Rock Products · Contact with heat

Employee worked all day, but, around 3:00pm, complained of not feeling well due to the heat. Employee went home and began throwing up, then went to the ER for the heat related illness. Lost time as of 7/8/2021.

May 17, 2021 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Southwest Rock Products · Over-exertion (Not Elsewhere Classified)

The injured employee was preparing to mount the cab of a flatbed truck. When EE placed EE's foot and tried to hoist self up, EE's leg twisted, which caused EE to fall. EE sustained a knee injury and was diagnosed with a sprain. Lost time as of 5/18/2021.

April 22, 2021 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Southwest Rock Products · Struck against stationary object

Injured employee was assisting with changing screens with another employee at the wash plant. In the process, the employee caught EE's finger on the sharp edge of the screen. EE's finger was lacerated and required 7 stitches. No lost time.

2020 · 1 incident

February 4, 2020 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STEPPING OR KNEELING ON OBJECT
Southwest Rock Products · Struck against stationary object

The miner was dismounting loader in the lube bay when the miner stepped on a fuel hose. This caused miner's knee to buckle and miner to fall to the ground. The miner sustained a knee sprain.

2019 · 5 incidents

May 29, 2019 AZ · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
Southwest Rock Products · Bodily reaction, (Not Elsewhere Classified)

The miner was driving a haul truck. When the miner got out of the truck, they tweaked their back. Lost time accident as of 5-30-19.

May 6, 2019 AZ · Metal/Non-Metal washer operator, sizing operator HANDLING OF MATERIALS
Southwest Rock Products · Over-exertion in lifting objects

The employee was shoveling mud from under a conveyor belt. The employee twisted to toss a shovel-full of mud off of the shovel when the employee's back tightened up on employee. Back strain. Became a lost time accident as of 5/7/2019.

May 2, 2019 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Southwest Rock Products · Over-exertion in lifting objects

The employee was shoveling dirt from under a conveyor belt. As EE twisted to throw a shovel-full over EE's shoulder, EE felt a pop in the shoulder. Shoulder strain. Became a lost time accident on 5/3/2019.

February 9, 2019 AZ · Metal/Non-Metal washer operator, sizing operator FIRE
Southwest Rock Products · Contact with hot objects or substances

The miner was tapping out a sheared bolt on a motor housing and using PB Blaster to tap it out. When that didn't work, the miner began to torch the metal to loosen it. The residual PB Blaster flashed at the miner and EE received 1st degree burns to EE's face and neck.

January 25, 2019 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Southwest Rock Products · Caught in, under or between a moving and a stationary object

The employee entered the cab of the excavator, sat in the seat, and was closing the door when employee left a finger in the door jamb too long and closed the door on thumb. Lost time as of 1/28/2019.

2018 · 2 incidents

July 24, 2018 AZ · Metal/Non-Metal washer operator, sizing operator NONPOWERED HAULAGE
Southwest Rock Products · Over-exertion in wielding or throwing objects

The employee was dumping a wheelbarrow full of sand when the wheelbarrow tipped too far forward and caused the employee to strain their midsection in the process. The employee worked until 7/30/2018, when the injury became a lost time accident.

April 9, 2018 AZ · Metal/Non-Metal washer operator, sizing operator SLIP OR FALL OF PERSON
Southwest Rock Products · Over-exertion (Not Elsewhere Classified)

The employee was performing a workplace exam at the wash plant. When the employee stepped up and walked on a concrete platform for a piece of equipment, employee's foot slid out and employee almost did the splits. Did not become a lost time accident until 4/12/2018.

2016 · 3 incidents

October 11, 2016 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
Southwest Rock Products · Struck by flying object

The miner was operating a crushing spread. The miner went to the top deck of the cone crusher to check if the cone was operating normally. The miner didn't follow proper procedure in this case. The miner looked into the cone when there was only a few rocks in it and when EE did, a rock bounced out and hit EE in the nose. The miner was seen at urgent care for a nose laceration.

August 15, 2016 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Southwest Rock Products · Over-exertion (Not Elsewhere Classified)

Employee was walking in the wash plant tunnel. Per the employee, wasn't watching where was going and tripped on a small pile of dirt. Employee has a back injury. Lost time accident as of 8/28/2016.

June 23, 2016 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman ELECTRICAL
Southwest Rock Products · Flash burns (electric)

Employee was changing a fuse in a bucket inside of the Wash Plant trailer (MCC). The employee shut down the bucket, opened the bucket, reactivated the bucket, removed and replaced one fuse and upon removing the second fuse, an arc occurred. The employee received minor burns to hands as a result.

2014 · 1 incident

April 22, 2014 AZ · Metal/Non-Metal washer operator, sizing operator HANDTOOLS (NONPOWERED)
Southwest Rock Products LLC · Struck by... (Not Elsewhere Classified)

The employee was using a two-handed sledgehammer to move material in a feeder by striking the sides of the feeder. As the employee swung the sledgehammer over his head, he felt a "pop" in his left shoulder and released the sledgehammer, which then struck the same shoulder (left). The employee has scheduled an MRI to determine the extent of the damage (an x-ray revealed no damage).

2012 · 2 incidents

October 22, 2012 AZ · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Southwest Rock Products LLC · Caught in, under or between a moving and a stationary object

The employee was adjusting a spring on a screen. While trying to get it into position the spring shifted cutting off the tip of his thumb between the spring and the cup. He was taken by us to hosiptal where they looked it over and wrapped it and said it will heal on its own, no stitches required.

July 30, 2012 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Southwest Rock Products LLC · Fall down stairs

The employee was walking down the wash plant screen stairs when he slipped and went to catch himself and hurt his hand. Employee was sent to Fast Med, was released back to work on 8/1/2012 he experienced sharp pain and numbness and sent him back to Fast Med.

2006 · 1 incident

August 29, 2006 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Southwest Rock Products LLC · Struck against a moving object

EE was using D8T Cat. Dozer w/Semi-U dozer blade w/approx 3050 total hrs on machine. He failed to stop machine & reverse unit to climb back up slope he'd just dozed the material from. His failure to control machine resulted in pushing through safety barrier & causing machine to become upset from its normal operating position. Received cut to left hand.