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.
Watch this mine
Email me when a new MSHA incident is filed at 1014 EAGLE MOUNTAIN QUARRY.
Fatalities
0
Total incidents
4
Years on record
2016–2026
Latest incident
Jun 2026
Compliance record
MSHA citations since 2008
51
citations
16
significant & substantial
$6,850
proposed penalties
$6,451
paid to date
94% of proposed penalties paid to date, a $399 gap.
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: 366 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.
Of $2K in penalties contested before the Commission, $966 was upheld in final decisions.
As of the most recent assessment on 2026-03-16.
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.
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.
13citations taken to the federal commission · 25% of citations on record
Settled
2 · 15%
Stood as issued
9 · 69%
Vacated or withdrawn
2 · 15%
83%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 6 decided S&S contests · industry: 79%
39%
Penalty reduction in decided contests
$2K proposed, $966 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.
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: 2025-06-18
0%
of limit-tested samples over the exposure limit
8
samples
3
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz5
Respirable dust, <.1mg3
Show the individual readings (8)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-06-18
Quartz, respirable, >1% Qtz
0.24
0.91
0.26
Crusher Oper/Worker
2025-06-18
Quartz, respirable, >1% Qtz
0.2
0.79
0.25
Front-end Loader Operator
2025-06-18
Respirable dust, <.1mg
0
Truck Driver
2019-02-28
Quartz, respirable, >1% Qtz
0.33
0.68
0.49
Truck Driver
2019-02-28
Quartz, respirable, >1% Qtz
0.16
Front-end Loader Operator
2019-02-28
Quartz, respirable, >1% Qtz
0.13
Crusher Oper/Worker
2011-04-20
Respirable dust, <.1mg
0
Crusher Oper/Worker
2011-04-20
Respirable dust, <.1mg
0
Front-end Loader 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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
7
2025
7
2024
11
2023
7
2022
5
2021
7
2020
7
2019
8
2018
7
2017
5
2016
3
2015
4
2014
6
2013
3
2012
2
2011
4
2010
2
2009
2
2008
2
2007
3
Source: MSHA quarterly employment and production, updated weekly.
1014 EAGLE MOUNTAIN QUARRY 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
2026 Q2
4,189
0
0
0.0
2026 Q1
3,971
3
1
755.5
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
Show 70 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
3,166
0
0
0.0
2024 Q1
4,114
0
0
0.0
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, 2026AZ · Metal/Non-Metalcrusher attendant/operator, pan feeder operator/workerSTRIKING OR BUMPING
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, 2020AZ · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorMACHINERY
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, 2017AZ · Metal/Non-Metalcrusher attendant/operator, pan feeder operator/workerOTHER
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, 2016AZ · Metal/Non-Metalcrusher attendant/operator, pan feeder operator/workerMACHINERY
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.
Related mines
Other mines operated by Arcosa Aggregates West, LLC.