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: 576 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
AVONDALE PLANT has $16K in proposed MSHA penalties and $0 outstanding across 0 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.
$16K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
66 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-09-05.
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.
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: 2024-09-19
0%
of limit-tested samples over the exposure limit
16
samples
3
limit-tested
Most sampled contaminants
Respirable dust, <.1mg13
Quartz, respirable, >1% Qtz2
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (16)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-09-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-09-19
Quartz, respirable, >1% Qtz
0.21
0.58
0.36
Utility Man
2024-09-19
Respirable dust, <.1mg
0
Crusher Oper/Worker
2024-09-19
Respirable dust, <.1mg
0
Truck Driver
2021-01-06
Nuisance dust, respirable, <1% Qtz
0.13
10
0.01
Supervisor, Co. Official
2021-01-06
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-01-06
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-09-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-09-25
Respirable dust, <.1mg
0
Backhoe Operator
2019-09-25
Respirable dust, <.1mg
0
Truck Driver
2019-09-25
Respirable dust, <.1mg
0
Crusher Oper/Worker
2009-04-02
Respirable dust, <.1mg
0
Backhoe Operator
2009-04-02
Respirable dust, <.1mg
0
Truck Driver
2009-04-02
Quartz, respirable, >1% Qtz
0.21
1
0.21
Crusher Oper/Worker
2009-04-02
Respirable dust, <.1mg
0
Truck Driver
2009-04-02
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.
AVONDALE PLANT 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 *
5.48
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
0.00
0.00
0.000
2019 *
6.98
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
2
2025
13
2024
12
2023
14
2022
16
2021
16
2020
12
2019
12
2018
12
2017
8
2016
2
2015
2
2014
5
2011
0
2010
7
2009
14
2008
15
2007
24
2006
21
2005
22
2004
19
2003
16
2002
17
2001
11
Source: MSHA quarterly employment and production, updated weekly.
AVONDALE PLANT 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 Q1
562
0
0
0.0
2025 Q4
4,021
0
0
0.0
2025 Q3
7,567
0
0
0.0
2025 Q2
7,044
0
0
0.0
2025 Q1
6,729
0
0
0.0
2024 Q4
6,599
0
0
0.0
2024 Q3
6,739
1
0
148.4
2024 Q2
7,724
0
0
0.0
Show 78 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q1
7,624
0
0
0.0
2023 Q4
8,182
1
0
122.2
2023 Q3
7,725
3
0
388.3
2023 Q2
8,865
0
0
0.0
2023 Q1
8,538
1
0
117.1
2022 Q4
9,090
0
0
0.0
2022 Q3
8,804
0
0
0.0
2022 Q2
10,491
0
0
0.0
2022 Q1
8,115
1
0
123.2
2021 Q4
8,706
0
0
0.0
2021 Q3
8,237
0
0
0.0
2021 Q2
9,517
0
0
0.0
2021 Q1
9,356
1
0
106.9
2020 Q4
7,562
0
0
0.0
2020 Q3
7,576
0
0
0.0
2020 Q2
6,906
0
0
0.0
2020 Q1
7,641
1
0
130.9
2019 Q4
6,908
0
0
0.0
2019 Q3
7,214
0
0
0.0
2019 Q2
7,937
0
0
0.0
2019 Q1
6,589
0
0
0.0
2018 Q4
6,640
0
0
0.0
2018 Q3
6,990
0
0
0.0
2018 Q2
7,924
3
0
378.6
2018 Q1
6,851
0
0
0.0
2017 Q4
4,289
0
0
0.0
2016 Q3
22
0
0
0.0
2016 Q2
3,022
0
0
0.0
2016 Q1
584
0
0
0.0
2015 Q4
141
0
0
0.0
2015 Q3
805
0
0
0.0
2015 Q2
545
0
0
0.0
2015 Q1
1,994
4
0
2006.0
2014 Q4
3,138
0
0
0.0
2014 Q3
2,258
0
0
0.0
2014 Q2
1,330
0
0
0.0
2011 Q4
0
0
0
2011 Q3
0
0
0
2011 Q2
0
0
0
2010 Q4
693
0
0
0.0
2010 Q3
1,422
0
0
0.0
2010 Q2
4,020
1
0
248.8
2010 Q1
5,618
0
0
0.0
2009 Q4
5,985
1
0
167.1
2009 Q3
7,663
0
0
0.0
2009 Q2
6,609
0
0
0.0
2009 Q1
8,096
0
0
0.0
2008 Q4
9,544
3
1
314.3
2008 Q3
9,670
0
0
0.0
2008 Q2
7,795
0
0
0.0
2008 Q1
9,137
0
0
0.0
2007 Q4
11,984
0
0
0.0
2007 Q3
13,154
0
0
0.0
2007 Q2
16,730
0
0
0.0
2007 Q1
17,676
5
0
282.9
2006 Q4
15,971
0
0
0.0
2006 Q3
14,658
2
0
136.4
2006 Q2
13,781
0
0
0.0
2006 Q1
12,339
9
1
729.4
2005 Q4
11,077
0
0
0.0
2005 Q3
15,052
0
0
0.0
2005 Q2
17,797
10
1
561.9
2005 Q1
5,266
0
0
0.0
2004 Q4
10,373
0
0
0.0
2004 Q3
8,639
0
0
0.0
2004 Q2
13,284
5
1
376.4
2004 Q1
12,370
0
0
0.0
2003 Q4
4,800
0
0
0.0
2003 Q3
10,583
10
2
944.9
2003 Q2
12,342
0
0
0.0
2003 Q1
9,826
0
0
0.0
2002 Q4
5,354
0
0
0.0
2002 Q3
8,259
0
0
0.0
2002 Q2
13,590
0
0
0.0
2002 Q1
8,609
0
0
0.0
2001 Q4
4,296
0
0
0.0
2001 Q3
4,680
0
0
0.0
2001 Q2
4,970
2
0
402.4
No fatalities recorded at this mine.
Reportable incidents
8 on file
2022 · 1 incident
March 16, 2022AZ · Metal/Non-Metaldry screening plant operator, screen house operatorSLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface
An EE exited the area under the main primary feeder and lost footing and fell on the loose material sloping alongside the feeder sustaining a first aid only injury. On 03/23/22 the EE wanted to have the shoulder checked at a clinic. X-Rays were taken and revealed a fractured collar bone and two fractured ribs. EE was released to return to work with restrictions.
2019 · 1 incident
April 8, 2019AZ · Metal/Non-Metalmine manager, mine foreman, mine ownerHANDLING OF MATERIALS
Injured Employee felt pain in back after lifting two 50 lb sandbags.
2008 · 1 incident
November 4, 2008AZ · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSTEPPING OR KNEELING ON OBJECT
CalMat Co · Over-exertion (Not Elsewhere Classified)
On second day of employment, the employee stated that while stepping onto the scale strained his back.
CalMat Co · Contact with hot objects or substances
The employee went to the company doctor on 7/10/2007 and was placed on restricted duty. While chipping a weld, using a chipping hammer, a piece of hot slag bounced into the employee's left eye, resulting in a corneal burn to L-eye.
2006 · 2 incidents
November 29, 2006AZ · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Received a laceration to right arm from falling inside an air duct that was slick with dust from the filter house.
November 28, 2006AZ · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS
CalMat Co · Over-exertion (Not Elsewhere Classified)
After doing pre-shift inspection, employee climbed on top of his loader to get into cab and then felt a pain in his back.
2005 · 2 incidents
November 3, 2005AZ · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techEXPLODING VESSELS UNDER PRESSURE
Employee was attempting to remove the hydraulic lines from the hydraulic pump setup. When he loosened a threaded line that was under pressure, the line blew and the force caused the employee to be struck with the wrench he was using to loosen the line.
June 24, 2005AZ · Metal/Non-Metalquality control technician, laboratory technician, laboratory assistantSLIP OR FALL OF PERSON
CalMat Co · Fall to the walkway or working surface
Employee was rolling a cable reel and stepped on a loose decorative rock on the edge of the plant office lawn. When he stepped on the rock, he lost his balance and in correcting for this loss of balance, overcompensated with his left foot, resulting in sprain to left foot. Initially reported as first aid only.