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: 438 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Crusher 1 has $9K 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.
$9K
proposed penalties
$9K
current assessed
$9K
paid to date
$0
outstanding
48 assessments are final orders; 2 contested dockets.
Of $619 in penalties contested before the Commission, $619 was upheld in final decisions.
As of the most recent assessment on 2024-08-16.
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.
3citations taken to the federal commission · 6% of citations on record
Stood as issued
3 · 100%
100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
0%
Penalty reduction in decided contests
$619 proposed, $619 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2017-03-22.
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: 2013-03-26, 13 years ago
0%
of limit-tested samples over the exposure limit
3
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg2
Quartz, respirable, >1% Qtz1
Show the individual readings (3)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2013-03-26
Quartz, respirable, >1% Qtz
0.12
0.57
0.21
Laborer, Bullgang
2013-03-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-09-26
Respirable dust, <.1mg
0
Mechanic
Area samples (mill and shop air)
Last sampled: 2015-10-06, 11 years ago
1
samples
Show the individual readings (1)
Date
Contaminant
Concentration
Limit
Conc / limit
Area sampled
2015-10-06
Respirable dust, <.1mg
0
SF ACTIVE MINING
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
2025
3
2024
3
2023
4
2022
4
2021
3
2020
3
2019
3
2018
3
2017
3
2016
3
2015
3
2014
3
2013
3
2012
3
2011
1
2010
2
2009
2
2008
6
2005
3
2004
4
2003
5
2002
6
2001
5
2000
4
1999
6
1998
5
1997
4
1996
6
1995
4
1994
4
1993
6
1992
6
1991
5
1990
6
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
Crusher 1 sits in Gila County, Arizona, where the Census mining category is 5.8% 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.
Gila County, Arizona · Population 53,610
5.8%
Mining share of county employment
$59,089
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; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. 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
112
0
0
0.0
2025 Q3
459
0
0
0.0
2025 Q2
356
0
0
0.0
2025 Q1
504
0
0
0.0
2024 Q4
502
0
0
0.0
2024 Q3
472
2
0
4237.3
2024 Q2
480
0
0
0.0
2024 Q1
430
0
0
0.0
Show 82 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
382
0
0
0.0
2023 Q3
416
0
0
0.0
2023 Q2
508
0
0
0.0
2023 Q1
400
0
0
0.0
2022 Q4
494
0
0
0.0
2022 Q3
600
0
0
0.0
2022 Q2
424
1
0
2358.5
2022 Q1
516
0
0
0.0
2021 Q4
492
0
0
0.0
2021 Q3
322
0
0
0.0
2021 Q2
308
0
0
0.0
2021 Q1
305
2
0
6557.4
2020 Q4
640
0
0
0.0
2020 Q3
490
0
0
0.0
2020 Q2
502
0
0
0.0
2020 Q1
700
0
0
0.0
2019 Q4
414
0
0
0.0
2019 Q3
476
0
0
0.0
2019 Q2
420
2
0
4761.9
2019 Q1
430
0
0
0.0
2018 Q4
422
0
0
0.0
2018 Q3
420
0
0
0.0
2018 Q2
424
0
0
0.0
2018 Q1
894
1
0
1118.6
2017 Q4
630
0
0
0.0
2017 Q3
888
0
0
0.0
2017 Q2
716
0
0
0.0
2017 Q1
856
0
0
0.0
2016 Q4
1,222
1
1
818.3
2016 Q3
422
2
1
4739.3
2016 Q2
884
0
0
0.0
2016 Q1
1,276
0
0
0.0
2015 Q4
1,208
3
1
2483.4
2015 Q3
957
0
0
0.0
2015 Q2
1,082
0
0
0.0
2015 Q1
1,086
0
0
0.0
2014 Q4
768
5
3
6510.4
2014 Q3
568
0
0
0.0
2014 Q2
1,286
0
0
0.0
2014 Q1
1,058
0
0
0.0
2013 Q4
1,150
0
0
0.0
2013 Q3
798
0
0
0.0
2013 Q2
798
0
0
0.0
2013 Q1
274
0
0
0.0
2012 Q4
208
0
0
0.0
2012 Q3
384
0
0
0.0
2012 Q2
246
0
0
0.0
2011 Q4
0
1
0
2011 Q3
0
0
0
2011 Q2
449
1
0
2227.2
2011 Q1
901
0
0
0.0
2010 Q4
1,153
3
1
2601.9
2010 Q3
827
0
0
0.0
2010 Q2
1,372
1
0
728.9
2010 Q1
1,089
0
0
0.0
2009 Q4
0
0
0
2009 Q3
1,087
6
1
5519.8
2009 Q2
1,261
0
0
0.0
2009 Q1
302
0
0
0.0
2008 Q4
1,710
0
0
0.0
2008 Q3
3,203
0
0
0.0
2008 Q2
3,209
0
0
0.0
2005 Q3
0
0
0
2005 Q2
2,209
0
0
0.0
2005 Q1
1,677
0
0
0.0
2004 Q4
2,529
0
0
0.0
2004 Q3
1,900
0
0
0.0
2004 Q2
1,779
0
0
0.0
2004 Q1
1,783
0
0
0.0
2003 Q4
2,183
0
0
0.0
2003 Q3
2,201
0
0
0.0
2002 Q4
1,018
1
0
982.3
2002 Q3
4,363
0
0
0.0
2002 Q2
2,320
3
1
1293.1
2002 Q1
2,583
0
0
0.0
2001 Q4
2,712
0
0
0.0
2001 Q3
2,062
0
0
0.0
2001 Q2
3,042
0
0
0.0
2001 Q1
3,374
4
2
1185.5
2000 Q3
1,501
0
0
0.0
2000 Q2
2,017
9
6
4462.1
2000 Q1
1,680
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
2 on file
2016 · 1 incident
January 27, 2016AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanOTHER
Kesson and Kesson Inc. employed two temporary laborers to work at their Silica Crushing Plant on FMI Miami property. The two employees engaged in conversation which resulted into a physical altercation where the second employee struck the injured employee in the mouth, resulting in a laceration to IE's lower lip.
1993 · 1 incident
January 26, 1993AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)