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: 548 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
67th. Ave Plant has $14K 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.
$14K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
50 assessments are final orders; 2 contested dockets.
Of $6K in penalties contested before the Commission, $4K was upheld in final decisions.
As of the most recent assessment on 2023-05-24.
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.
7citations taken to the federal commission · 14% of citations on record
Settled
7 · 100%
50%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 4 decided S&S contests · industry: 79%
31%
Penalty reduction in decided contests
$6K proposed, $4K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2023-08-08.
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: 2021-06-02, 5 years ago
0%
of limit-tested samples over the exposure limit
20
samples
2
limit-tested
Most sampled contaminants
Respirable dust, <.1mg15
Quartz, respirable, >1% Qtz4
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (20)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2021-06-02
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-06-02
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-06-02
Quartz, respirable, >1% Qtz
0.27
0.38
0.71
Crusher Oper/Worker
2021-06-02
Quartz, respirable, >1% Qtz
0.13
Supervisor, Co. Official
2019-02-27
Quartz, respirable, >1% Qtz
0.25
Crusher Oper/Worker
2019-02-27
Respirable dust, <.1mg
0
Road Grader Operator
2019-02-27
Respirable dust, <.1mg
0
Washer Operator
2019-02-27
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-02-27
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-05-08
Unlisted Particulate, respirable, <1% Qtz
0.13
Crusher Oper/Worker
2018-05-08
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-07-02
Respirable dust, <.1mg
0
Washer Operator
2014-07-02
Quartz, respirable, >1% Qtz
0.29
0.34
0.85
Jet Piercing Chan. Operator
2014-07-02
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-09-27
Respirable dust, <.1mg
0
Complete Load-Haul-Dump
2012-09-27
Respirable dust, <.1mg
0
Complete Load-Haul-Dump
2012-09-27
Respirable dust, <.1mg
0
Washer Operator
2008-05-21
Respirable dust, <.1mg
0
Laborer, Bullgang
2008-05-21
Respirable dust, <.1mg
0
Crusher Oper/Worker
2008-05-21
Respirable dust, <.1mg
0
Laborer, Bullgang
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.
67th. Ave Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2023.
Injury rate, 2023
ⓘ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 1.78 and the all-US-mining average was 2.10 cases per 100 workers.
In Arizona, metal and nonmetal mining averaged 2.62 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
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2021 *
9.58
0.00
0.000
2015 *
0.00
0.00
0.000
2014 *
0.00
0.00
0.000
2009 *
0.00
0.00
0.000
2008 *
8.72
0.00
0.000
2007 *
12.22
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
11
2025
9
2024
8
2023
9
2022
11
2021
9
2020
7
2019
7
2018
8
2017
6
2016
8
2015
9
2014
8
2013
13
2012
14
2011
5
2010
9
2009
17
2008
19
2007
23
2006
13
2005
5
Source: MSHA quarterly employment and production, updated weekly.
67th. Ave 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
Miner was cutting urethane crown bar protectors to size with a utility knife. On the final cut the urethane bar shifted and caused the left index finger to move into the blade's path. The knife trespassed the leather glove and into the side of the left index finger. The miner received 12 stitches.
Operator was dismounting the 670 G Excavator. Using 3-points of contact, operator's right ankle rolled when placing foot on uneven ground resulting in a sprained right ankle.
Miner was cutting a piece of 1" hose when the knife slipped off the hose and cut the palm of the left hand under the thumb. Miner required 3 stitches and a tetanus shot to close the wound.
2013 · 1 incident
February 5, 2013AZ · Metal/Non-Metalcrane operator, mobile equipment operator (meo), dragline operator, dropball operator, riggerHANDLING OF MATERIALS
While using the batch plants wash rack hose one handed (Right Hand) to clean the street sweeper out, there was a surge in the water pressure. This resulted in a jolt in the water line that employee was holding causing his arm to receive a strain. The surge in water pressure resulted from another hose being shut off delivering full pressure to the hose employee was holding.
2008 · 1 incident
December 15, 2008AZ · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)