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: 975 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
SOUTH YUMA PIT has $64K 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.
$64K
proposed penalties
$63K
current assessed
$63K
paid to date
$0
outstanding
178 assessments are final orders; 2 contested dockets.
Of $13K in penalties contested before the Commission, $13K was upheld in final decisions.
As of the most recent assessment on 2024-07-24.
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.
11citations taken to the federal commission · 6% of citations on record
Settled
11 · 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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 6 decided S&S contests · industry: 79%
2%
Penalty reduction in decided contests
$13K proposed, $13K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2008-01-11.
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: 2024-11-14
20%
of limit-tested samples over the exposure limit
17
samples
10
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz102 over
Respirable dust, <.1mg7
Show the individual readings (17)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2014-04-10
Quartz, respirable, >1% Qtz
0.26
0.26
1.00
Crusher Oper/Worker
2014-04-10
Quartz, respirable, >1% Qtz
0.31
0.3
1.03
Laborer, Bullgang
2024-11-14
Respirable dust, <.1mg
0
Crusher Oper/Worker
2024-11-14
Quartz, respirable, >1% Qtz
0.19
0.86
0.22
Mechanic
2024-11-14
Quartz, respirable, >1% Qtz
0.2
0.48
0.42
Crusher Oper/Worker
2021-04-27
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-04-27
Quartz, respirable, >1% Qtz
0.19
0.44
0.43
Laborer, Bullgang
2021-04-27
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-04-27
Respirable dust, <.1mg
0
Laborer, Bullgang
2014-04-10
Respirable dust, <.1mg
0
Laborer, Bullgang
2009-06-17
Quartz, respirable, >1% Qtz
0.12
0.63
0.19
Welder, etc.
2009-06-17
Quartz, respirable, >1% Qtz
0.12
0.8
0.15
Belt Crew
2009-06-17
Quartz, respirable, >1% Qtz
0.16
0.46
0.35
Laborer, Bullgang
2006-08-02
Quartz, respirable, >1% Qtz
0.16
0.52
0.31
Crusher Oper/Worker
2006-08-02
Respirable dust, <.1mg
0
Truck Driver
2006-08-02
Quartz, respirable, >1% Qtz
0.16
0.53
0.30
Laborer, Bullgang
2006-08-02
Respirable dust, <.1mg
0
Bulldozer 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.
SOUTH YUMA PIT recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
Injury rate, 2025
ⓘThis rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Arizona, metal and nonmetal mining averaged 1.81 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year
total case rate
days-away
fatal
2025 *
0.00
0.00
0.000
2024 *
0.00
0.00
0.000
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
0.00
0.00
0.000
2019 *
5.35
0.00
0.000
2018 *
0.00
0.00
0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
21
2025
23
2024
24
2023
22
2022
20
2021
20
2020
20
2019
18
2018
17
2017
16
2016
12
2015
14
2014
13
2013
11
2012
11
2011
10
2010
8
2009
15
2008
17
2007
14
2006
13
2005
13
2004
13
2003
11
2002
9
2001
10
2000
15
Source: MSHA quarterly employment and production, updated weekly.
SOUTH YUMA PIT sits in Yuma County, Arizona, where the Census mining category is 0.1% 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.
Yuma County, Arizona · Population 207,685
0.1%
Mining share of county employment
$60,417
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
11,774
0
0
0.0
2026 Q1
11,518
0
0
0.0
2025 Q4
11,724
0
0
0.0
2025 Q3
11,931
0
0
0.0
2025 Q2
11,601
0
0
0.0
2025 Q1
12,879
0
0
0.0
2024 Q4
14,048
0
0
0.0
2024 Q3
12,021
14
1
1164.6
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
13,575
0
0
0.0
2024 Q1
12,408
0
0
0.0
2023 Q4
13,270
0
0
0.0
2023 Q3
11,337
0
0
0.0
2023 Q2
11,794
0
0
0.0
2023 Q1
9,839
0
0
0.0
2022 Q4
9,951
0
0
0.0
2022 Q3
10,076
0
0
0.0
2022 Q2
10,401
0
0
0.0
2022 Q1
9,295
0
0
0.0
2021 Q4
9,959
1
0
100.4
2021 Q3
9,100
0
0
0.0
2021 Q2
10,763
4
1
371.6
2021 Q1
9,751
6
1
615.3
2020 Q4
10,098
0
0
0.0
2020 Q3
9,899
1
0
101.0
2020 Q2
12,019
0
0
0.0
2020 Q1
10,228
3
0
293.3
2019 Q4
9,757
0
0
0.0
2019 Q3
9,022
2
1
221.7
2019 Q2
9,960
0
0
0.0
2019 Q1
8,613
13
5
1509.3
2018 Q4
7,902
0
0
0.0
2018 Q3
8,032
0
0
0.0
2018 Q2
7,653
0
0
0.0
2018 Q1
7,536
6
0
796.2
2017 Q4
7,894
0
0
0.0
2017 Q3
7,756
0
0
0.0
2017 Q2
9,887
2
0
202.3
2017 Q1
8,392
3
0
357.5
2016 Q4
7,249
0
0
0.0
2016 Q3
6,576
1
0
152.1
2016 Q2
6,192
0
0
0.0
2016 Q1
6,512
1
1
153.6
2015 Q4
6,875
0
0
0.0
2015 Q3
7,298
6
3
822.1
2015 Q2
7,900
0
0
0.0
2015 Q1
7,113
5
0
702.9
2014 Q4
7,872
0
0
0.0
2014 Q3
7,214
0
0
0.0
2014 Q2
7,115
5
0
702.7
2014 Q1
6,282
0
0
0.0
2013 Q4
6,321
2
0
316.4
2013 Q3
6,251
0
0
0.0
2013 Q2
6,749
2
0
296.3
2013 Q1
6,360
0
0
0.0
2012 Q4
6,526
2
0
306.5
2012 Q3
5,746
0
0
0.0
2012 Q2
5,214
2
0
383.6
2012 Q1
5,018
0
0
0.0
2011 Q4
5,192
3
2
577.8
2011 Q3
4,912
0
0
0.0
2011 Q2
3,348
1
0
298.7
2011 Q1
3,635
4
0
1100.4
2010 Q4
4,769
0
0
0.0
2010 Q3
3,499
6
0
1714.8
2010 Q2
3,196
0
0
0.0
2010 Q1
2,616
1
0
382.3
2009 Q4
4,815
0
0
0.0
2009 Q3
7,844
0
0
0.0
2009 Q2
8,543
3
1
351.2
2009 Q1
8,474
0
0
0.0
2008 Q4
13,080
0
0
0.0
2008 Q3
8,597
0
0
0.0
2008 Q2
10,345
0
0
0.0
2008 Q1
8,392
4
0
476.6
2007 Q4
7,252
6
1
827.4
2007 Q3
7,952
22
9
2766.6
2007 Q2
6,296
0
0
0.0
2007 Q1
6,813
12
2
1761.3
2006 Q4
6,157
0
0
0.0
2006 Q3
5,622
0
0
0.0
2006 Q2
6,556
0
0
0.0
2006 Q1
7,097
0
0
0.0
2005 Q4
6,686
0
0
0.0
2005 Q3
6,668
0
0
0.0
2005 Q2
6,435
0
0
0.0
2005 Q1
4,834
2
1
413.7
2004 Q4
5,564
0
0
0.0
2004 Q3
5,885
1
1
169.9
2004 Q2
8,332
6
4
720.1
2004 Q1
5,690
0
0
0.0
2003 Q4
6,977
0
0
0.0
2003 Q3
4,947
0
0
0.0
2003 Q2
4,648
0
0
0.0
2003 Q1
4,441
5
1
1125.9
2002 Q4
3,035
0
0
0.0
2002 Q3
4,160
4
4
961.5
2002 Q2
4,345
0
0
0.0
2002 Q1
4,891
0
0
0.0
2001 Q4
5,353
0
0
0.0
2001 Q3
6,268
0
0
0.0
2001 Q2
3,217
0
0
0.0
2001 Q1
4,608
0
0
0.0
2000 Q4
4,999
0
0
0.0
2000 Q3
4,925
0
0
0.0
2000 Q2
6,014
18
7
2993.0
2000 Q1
8,138
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
8 on file
2019 · 1 incident
June 24, 2019AZ · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerEXPLODING VESSELS UNDER PRESSURE
Employee was connecting two hoses carrying hot oil that services the asphalt plant, when hose pressure caused the oil to unexpectedly shoot out striking employee's right forearm.
2017 · 3 incidents
November 16, 2017AZ · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
Employee was putting forks on forklift and felt pull in elbow on right arm. EE had performed this task many times. EE did not lose grip or drop. Normal procedure except for injury.
June 15, 2017AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
Employee was on conveyor, 12'-14' high, lubrication rollers. Plant operator could not see the employee, blew the alarm (for all personnel to get clear of plant) and started the plant. Employee said employee did not hear alarm, fell, fracturing employee's left wrist and sustaining a displaced fracture to the right arm.
January 19, 2017AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was dislodging a rock from shaker/screen, and rock fell on top of left hand. Employee did not notify supervisor until Thursday, 1/26/17. Employee told supervisor hand was ok. 1/28/17 initial HR notification was made by supervisor with request for employee to be seen medically. Medical findings on 1/28/17 state no damage found or necessary medical treatment needed.
EE was working on the conveyor belt with a pry bar when he was pulling on the pry bar towards him that is when he lost his balance and hit the railing bar on his left side of his back.
2008 · 1 incident
May 12, 2008AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
DPE Materials, Inc · Caught in, under or between a moving and a stationary object
Employee was dislodging a rock on a conveyor belt with a pry bar and the belt twisted and pry bar smashed the little finger on his right hand.
2003 · 2 incidents
May 6, 2003AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY
WHILE INSTALLING THE ADJUSTMENT PLATES, THE TOP HALF OF THE CONE WHILE ATTACHED TO THE CRANE, SLIPPED & SHIFTED DOWNWARD IN THE AREA WHERE HE WAS PLACING THE PLATES. HIS THUMB WAS PINCHED BETW EEN THE TOP HALF OF THE CONE AND THE ADJUSTMENT PLATES.
March 12, 2003AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS