Mining Incidents

1050 Estrella Pit Metal/Non-Metal

Controlled by Arcosa, Inc
Buckeye, Apache County, AZ  ·  Active
MSHA Mine ID: 0202372

1050 Estrella Pit has $27K in proposed MSHA penalties and $12K outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
2
Years on record
1992–2025
Latest incident
Jun 2025
Compliance record
MSHA citations since 2004
125
citations
38
significant & substantial
$26,995
proposed penalties
$14,388
paid to date
53% of proposed penalties paid to date, a $12,607 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
47
inspections on record
647
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: 647 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

1050 Estrella Pit has $27K in proposed MSHA penalties and $12K outstanding across 4 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.
$27K
proposed penalties
$27K
current assessed
$14K
paid to date
$12K
outstanding
106 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2026-02-11.
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 13,082 0 0 0.0
2025 Q3 15,529 11 1 708.4
2025 Q2 16,308 0 0 0.0
2025 Q1 15,623 0 0 0.0
2024 Q4 14,752 0 0 0.0
2024 Q3 17,158 19 2 1107.4
2021 Q4 615 0 0 0.0
2021 Q3 1,250 0 0 0.0
Show 83 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2021 Q2 1,676 0 0 0.0
2021 Q1 437 0 0 0.0
2020 Q4 1,569 0 0 0.0
2020 Q3 1,967 0 0 0.0
2020 Q2 1,639 1 0 610.1
2020 Q1 1,436 0 0 0.0
2019 Q4 1,443 0 0 0.0
2019 Q3 1,292 0 0 0.0
2018 Q4 1,028 0 0 0.0
2018 Q3 1,509 0 0 0.0
2018 Q2 2,764 0 0 0.0
2018 Q1 1,130 0 0 0.0
2017 Q4 1,378 0 0 0.0
2017 Q3 1,106 0 0 0.0
2017 Q2 2,551 1 1 392.0
2017 Q1 1,381 0 0 0.0
2016 Q4 1,488 0 0 0.0
2016 Q3 1,777 0 0 0.0
2016 Q2 1,472 0 0 0.0
2016 Q1 1,049 0 0 0.0
2015 Q4 2,127 0 0 0.0
2015 Q3 1,511 0 0 0.0
2015 Q2 1,230 0 0 0.0
2015 Q1 1,133 0 0 0.0
2014 Q4 813 0 0 0.0
2014 Q3 1,512 0 0 0.0
2014 Q2 1,339 1 1 746.8
2014 Q1 1,253 0 0 0.0
2013 Q4 1,157 0 0 0.0
2013 Q3 1,391 0 0 0.0
2013 Q2 1,306 0 0 0.0
2013 Q1 0 0 0
2012 Q4 1,260 0 0 0.0
2012 Q3 1,220 0 0 0.0
2012 Q2 2,263 3 1 1325.7
2012 Q1 1,345 0 0 0.0
2011 Q4 0 0 0
2011 Q3 507 6 1 11834.3
2011 Q2 600 0 0 0.0
2011 Q1 959 0 0 0.0
2010 Q4 567 0 0 0.0
2010 Q3 2,669 3 3 1124.0
2010 Q2 248 0 0 0.0
2010 Q1 544 0 0 0.0
2009 Q4 496 0 0 0.0
2009 Q3 400 0 0 0.0
2009 Q2 60 1 0 16666.7
2009 Q1 277 2 0 7220.2
2008 Q4 340 0 0 0.0
2008 Q3 1,482 0 0 0.0
2008 Q2 1,232 6 1 4870.1
2008 Q1 1,460 3 1 2054.8
2007 Q4 1,859 0 0 0.0
2007 Q3 2,340 2 1 854.7
2007 Q2 828 0 0 0.0
2007 Q1 2,563 1 0 390.2
2006 Q4 3,228 0 0 0.0
2006 Q3 3,596 6 0 1668.5
2006 Q2 1,772 0 0 0.0
2006 Q1 2,940 6 3 2040.8
2005 Q4 3,093 9 4 2909.8
2005 Q3 6,147 26 11 4229.7
2005 Q2 2,400 0 0 0.0
2005 Q1 2,000 0 0 0.0
2004 Q4 1,800 0 0 0.0
2004 Q3 2,400 0 0 0.0
2004 Q2 1,080 9 6 8333.3
2004 Q1 1,800 0 0 0.0
2003 Q4 1,560 0 0 0.0
2003 Q3 1,188 0 0 0.0
2003 Q2 960 0 0 0.0
2003 Q1 0 0 0
2002 Q4 1,648 0 0 0.0
2002 Q3 2,717 0 0 0.0
2002 Q2 0 0 0
2001 Q4 0 0 0
2001 Q3 0 0 0
2001 Q2 542 0 0 0.0
2001 Q1 1,073 0 0 0.0
2000 Q4 977 0 0 0.0
2000 Q3 1,169 0 0 0.0
2000 Q2 1,281 0 0 0.0
2000 Q1 650 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2025 · 1 incident

June 5, 2025 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Arcosa Aggregates West, LLC. · Struck by flying object

The employee was working with another employee replacing a conveyor roller. The injured employee was holding the roller as another employee was taping it in place with a 3-pound hammer. The injured employee moved their hand, and it was struck by the hammer.

1992 · 1 incident

July 2, 1992 AZ · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Day and Sons LLC · Caught in, under or between a moving and a stationary object

LIFTING ROCK BUMPED ANOTHER ROCK.MASHED END OF FINGER BETWEEN THE 2 ROCKS.

For insurers, brokers, and safety consultants

The full compliance file on 1050 Estrella Pit

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.