Mining Incidents

1014 EAGLE MOUNTAIN QUARRY Metal/Non-Metal

Controlled by Arcosa, Inc
San Tan Valley, Maricopa County, AZ  ·  Active
MSHA Mine ID: 0203146

1014 EAGLE MOUNTAIN QUARRY has $7K in proposed MSHA penalties and $0 outstanding across 9 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
4
Years on record
2016–2026
Latest incident
Jun 2026
Compliance record
MSHA citations since 2008
50
citations
16
significant & substantial
$6,850
proposed penalties
$6,451
paid to date
94% of proposed penalties paid to date, a $399 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
40
inspections on record
356
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: 356 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

1014 EAGLE MOUNTAIN QUARRY has $7K in proposed MSHA penalties and $0 outstanding across 9 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
47 assessments are final orders; 9 contested dockets.
As of the most recent assessment on 2026-03-16.
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 4,570 0 0 0.0
2025 Q3 4,986 0 0 0.0
2025 Q2 3,928 3 0 763.7
2025 Q1 3,631 0 0 0.0
2024 Q4 4,720 3 0 635.6
2024 Q3 4,240 1 0 235.8
2024 Q2 3,166 0 0 0.0
2024 Q1 4,114 0 0 0.0
Show 68 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 2,163 0 0 0.0
2023 Q3 1,907 0 0 0.0
2023 Q2 1,192 0 0 0.0
2023 Q1 720 0 0 0.0
2022 Q4 975 0 0 0.0
2022 Q3 754 0 0 0.0
2022 Q2 2,204 1 1 453.7
2022 Q1 2,892 2 2 691.6
2021 Q4 2,276 0 0 0.0
2021 Q3 2,659 0 0 0.0
2021 Q2 3,743 0 0 0.0
2021 Q1 2,501 0 0 0.0
2020 Q4 2,716 0 0 0.0
2020 Q3 2,282 0 0 0.0
2020 Q2 2,210 0 0 0.0
2020 Q1 2,900 0 0 0.0
2019 Q4 3,913 1 0 255.6
2019 Q3 4,142 0 0 0.0
2019 Q2 3,930 0 0 0.0
2019 Q1 4,045 2 0 494.4
2018 Q4 3,283 0 0 0.0
2018 Q3 4,759 0 0 0.0
2018 Q2 4,696 0 0 0.0
2018 Q1 2,036 0 0 0.0
2017 Q4 2,704 2 1 739.6
2017 Q3 2,256 1 0 443.3
2017 Q2 2,022 0 0 0.0
2017 Q1 2,990 0 0 0.0
2016 Q4 656 3 3 4573.2
2016 Q3 579 0 0 0.0
2016 Q2 1,481 0 0 0.0
2016 Q1 1,728 0 0 0.0
2015 Q4 2,115 2 1 945.6
2015 Q3 2,343 0 0 0.0
2015 Q2 1,780 1 0 561.8
2015 Q1 469 0 0 0.0
2014 Q4 1,435 0 0 0.0
2014 Q3 2,361 0 0 0.0
2014 Q2 2,735 0 0 0.0
2014 Q1 1,018 0 0 0.0
2013 Q4 1,302 0 0 0.0
2013 Q3 1,177 0 0 0.0
2013 Q2 844 3 0 3554.5
2013 Q1 3,140 0 0 0.0
2012 Q4 2,343 0 0 0.0
2012 Q3 929 0 0 0.0
2012 Q2 870 2 0 2298.9
2012 Q1 1,806 0 0 0.0
2011 Q4 1,692 0 0 0.0
2011 Q3 288 0 0 0.0
2011 Q2 3,834 0 0 0.0
2011 Q1 3,486 3 0 860.6
2010 Q4 1,262 0 0 0.0
2010 Q3 1,181 7 4 5927.2
2010 Q2 1,528 0 0 0.0
2010 Q1 676 0 0 0.0
2009 Q4 833 0 0 0.0
2009 Q3 1,379 4 2 2900.7
2009 Q2 174 0 0 0.0
2009 Q1 184 0 0 0.0
2008 Q4 662 0 0 0.0
2008 Q3 1,388 0 0 0.0
2008 Q2 1,022 6 1 5870.8
2008 Q1 206 0 0 0.0
2007 Q4 1,755 0 0 0.0
2007 Q3 2,862 0 0 0.0
2007 Q2 1,950 0 0 0.0
2007 Q1 1,375 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2026 · 1 incident

June 22, 2026 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker STRIKING OR BUMPING
Arcosa Aggregates West, LLC. · Struck by falling object

The employee entered the feeder/jaw area with fall protection to remove a large boulder that could not be crushed. After accessing the area by lifting a safety gate, the employee began clearing smaller rocks. While sitting down taking a break to drink water, they accidentally contacted the gate, causing it to fall onto their left knee and resulted in a laceration.

2020 · 1 incident

December 2, 2020 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
Southwest Rock Products · Rubbed or abraded

Employee was changing segments on the loader bucket. Employee placed hand to catch a bolt, but the bolt caught the impact wrench, spun in place and cut the hand.

2017 · 1 incident

July 3, 2017 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker OTHER
Southwest Rock Products · (Not Elsewhere Classified)

EE and supervisor were adjusting the scale on the system. EE was watching the belt and supervisor turned to adjust the scale. When supervisor turned back a minute later, EE was on the ground clutching EE's chest. Another EE stayed with the victim while supervisor guided the police, fire department and ambulance to the victim.

2016 · 1 incident

November 7, 2016 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
Southwest Rock Products · Struck by falling object

The employee was running a track-mounted crushing machine. A rock the size of a cell-phone fell from the top of the feed hopper as the employee was looking up and the rock hit EE's mouth, cracking a tooth, and causing some swelling.

For insurers, brokers, and safety consultants

The full compliance file on 1014 EAGLE MOUNTAIN QUARRY

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.