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: 494 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Mine #2 has $19K in proposed MSHA penalties and $0 outstanding across 2 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.
$19K
proposed penalties
$19K
current assessed
$19K
paid to date
$0
outstanding
100 assessments are final orders; 2 contested dockets.
Of $671 in penalties contested before the Commission, $363 was upheld in final decisions.
As of the most recent assessment on 2025-11-12.
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.
2citations taken to the federal commission · 2% of citations on record
Settled
2 · 100%
0%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2 decided S&S contests · industry: 79%
50%
Penalty reduction in decided contests
$616 proposed, $308 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2010-02-26.
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: 2021-06-03, 5 years ago
33%
of limit-tested samples over the exposure limit
9
samples
3
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz51 over
Respirable dust, <.1mg4
Show the individual readings (9)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2018-12-04
Quartz, respirable, >1% Qtz
0.66
0.42
1.57
Crusher Oper/Worker
2021-06-03
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-06-03
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-06-03
Quartz, respirable, >1% Qtz
0.3
0.79
0.38
Crusher Oper/Worker
2020-02-04
Quartz, respirable, >1% Qtz
0.35
Crusher Oper/Worker
2020-02-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-02-04
Quartz, respirable, >1% Qtz
0.18
Cleanup Man
2018-12-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-12-04
Quartz, respirable, >1% Qtz
0.24
0.66
0.36
Truck Driver
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
6
2025
6
2024
4
2023
4
2022
4
2021
4
2020
3
2019
5
2018
3
2017
5
2016
5
2015
7
2014
4
2013
6
2012
5
2011
5
2010
6
2009
6
2008
5
2007
5
2006
5
2005
6
2003
0
2002
4
2001
5
2000
7
Source: MSHA quarterly employment and production, updated weekly.
Mine #2 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
1,748
0
0
0.0
2026 Q1
2,226
0
0
0.0
2025 Q4
2,332
7
5
3001.7
2025 Q3
4,826
0
0
0.0
2025 Q2
2,594
7
2
2698.5
2025 Q1
816
0
0
0.0
2024 Q4
2,584
0
0
0.0
2024 Q3
2,311
0
0
0.0
Show 92 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
2,195
0
0
0.0
2024 Q1
2,216
4
0
1805.1
2023 Q4
2,527
0
0
0.0
2023 Q3
1,090
0
0
0.0
2023 Q2
443
0
0
0.0
2023 Q1
2,358
0
0
0.0
2022 Q4
969
0
0
0.0
2022 Q3
3,117
5
0
1604.1
2022 Q2
3,092
0
0
0.0
2022 Q1
2,968
4
0
1347.7
2021 Q4
2,314
0
0
0.0
2021 Q3
547
0
0
0.0
2021 Q2
3,620
0
0
0.0
2021 Q1
2,639
0
0
0.0
2020 Q4
2,762
0
0
0.0
2020 Q3
3,704
0
0
0.0
2020 Q2
2,081
1
1
480.5
2020 Q1
1,777
1
0
562.7
2019 Q4
4,951
0
0
0.0
2019 Q3
4,499
0
0
0.0
2019 Q2
3,058
0
0
0.0
2019 Q1
2,221
0
0
0.0
2018 Q4
66
1
1
15151.5
2018 Q3
3,141
0
0
0.0
2018 Q2
2,715
0
0
0.0
2018 Q1
986
2
0
2028.4
2017 Q4
3,178
0
0
0.0
2017 Q3
3,581
0
0
0.0
2017 Q2
3,563
0
0
0.0
2017 Q1
2,788
1
0
358.7
2016 Q4
3,505
0
0
0.0
2016 Q3
3,402
0
0
0.0
2016 Q2
1,623
0
0
0.0
2016 Q1
5,139
6
3
1167.5
2015 Q4
4,066
0
0
0.0
2015 Q3
3,317
0
0
0.0
2015 Q2
3,217
7
2
2175.9
2015 Q1
3,926
0
0
0.0
2014 Q4
687
0
0
0.0
2014 Q3
2,411
0
0
0.0
2014 Q2
2,600
3
2
1153.8
2014 Q1
1,394
0
0
0.0
2013 Q4
828
0
0
0.0
2013 Q3
1,701
0
0
0.0
2013 Q2
3,596
1
0
278.1
2013 Q1
2,465
9
8
3651.1
2012 Q4
3,157
0
0
0.0
2012 Q3
3,807
0
0
0.0
2012 Q2
5,599
0
0
0.0
2012 Q1
3,659
2
1
546.6
2011 Q4
2,381
0
0
0.0
2011 Q3
2,615
0
0
0.0
2011 Q2
5,534
0
0
0.0
2011 Q1
1,367
2
0
1463.1
2010 Q4
1,347
0
0
0.0
2010 Q3
4,426
0
0
0.0
2010 Q2
3,545
0
0
0.0
2010 Q1
2,813
0
0
0.0
2009 Q4
3,536
3
0
848.4
2009 Q3
4,062
0
0
0.0
2009 Q2
2,121
0
0
0.0
2009 Q1
2,025
0
0
0.0
2008 Q4
4,027
2
0
496.6
2008 Q3
2,776
0
0
0.0
2008 Q2
1,391
0
0
0.0
2008 Q1
4,592
8
2
1742.2
2007 Q4
3,233
0
0
0.0
2007 Q3
3,627
0
0
0.0
2007 Q2
1,544
7
1
4533.7
2006 Q4
0
0
0
2006 Q3
2,002
0
0
0.0
2006 Q2
4,395
2
2
455.1
2006 Q1
3,146
0
0
0.0
2005 Q4
3,516
0
0
0.0
2005 Q3
3,865
3
2
776.2
2005 Q2
5,349
0
0
0.0
2005 Q1
4,303
0
0
0.0
2003 Q3
0
0
0
2003 Q2
0
1
0
2003 Q1
0
0
0
2002 Q4
725
0
0
0.0
2002 Q3
1,257
1
0
795.5
2002 Q2
3,999
0
0
0.0
2002 Q1
2,291
0
0
0.0
2001 Q4
0
0
0
2001 Q3
1,538
0
0
0.0
2001 Q2
679
0
0
0.0
2001 Q1
2,326
0
0
0.0
2000 Q4
3,723
4
2
1074.4
2000 Q3
2,538
0
0
0.0
2000 Q2
5,241
0
0
0.0
2000 Q1
3,189
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
6 on file
2019 · 2 incidents
June 14, 2019AZ · Metal/Non-Metalminer, prospector, necPOWERED HAULAGE
Laborer was passenger in other laborers personal truck. They were driving on an approximately 1 1/2 mile hilly dirt road. The driver met a drilling machine on the road, hit brakes, lost control of truck, went off the road and rolled truck. The posted speed limit was 15 mph. The driver said EE was driving 35-40 mph.
June 14, 2019AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanPOWERED HAULAGE
Laborer was driving personal truck with another laborer to go and pick up the water truck. It was a dirt road approximately 1 1/2 miles long. The driver met a drilling machine on the road, hit the brakes, lost control and went off the road and rolled the truck. Speed limit was 15 mph. Driver said they were driving 35-40 mph.
2012 · 1 incident
May 21, 2012AZ · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
Employee was helping to install a chute on a 6x20 screening plant. He was using a prybar to help align the chute when the chute shifted and his right ring finger got caught between the chute and the screening plant. His finger was fractured. He saw a doctor on 5/23/12 and was released to full duty. Following his doctor's appointment he went on his scheduled vacation.
2011 · 1 incident
April 18, 2011AZ · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorMACHINERY
Employee was cleaning the head pulley shaft with a pneumatic sander when disc flew off and struck employee both the left and right forearm. The employee returned to work the same day with no restrictions determined by Foothills Walk-In Medical Care. No loss of time from work.
Hitting a loader tooth with a hammer (in an attempt to loosen and remove the pin), piece of steel broke off of tooth and punctured right thigh. The fragment was 5mm x 11mm. Worker received two stiches.
2001 · 1 incident
January 15, 2001AZ · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS