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0SCREENING PLANT & SHOP: 213 MSHA citations Metal/Non-Metal

A & A Materials Inc · Surface
Mesa, Maricopa County, AZ  ·  Intermittent
MSHA Mine ID: 0201217

0SCREENING PLANT & SHOP has $54K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
1986
Latest incident
Oct 1986
Compliance record
MSHA citations since 2000
213
citations
67
significant & substantial
$54,211
proposed penalties
$54,211
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See A & A Materials Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
52
inspections on record
566
inspection hours
n/a
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: 566 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

0SCREENING PLANT & SHOP has $54K 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.
$54K
proposed penalties
$54K
current assessed
$54K
paid to date
$0
outstanding
212 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-16.
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.
31.5%
significant & substantial
6.1%
high negligence or reckless
31.5%
reasonably likely or greater
45.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 2.8% low, 91.1% moderate, 6.1% high, 0.0% reckless.
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: 2024-10-03
0%
of limit-tested samples over the exposure limit
8
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg5
  • Quartz, respirable, >1% Qtz3
Show the individual readings (8)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-10-03 Respirable dust, <.1mg 0 Utility Man
2024-10-03 Quartz, respirable, >1% Qtz 0.2 Front-end Loader Operator
2024-10-03 Respirable dust, <.1mg 0 Supervisor, Co. Official
2010-10-06 Respirable dust, <.1mg 0 Laborer, Bullgang
2010-10-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-12-21 Quartz, respirable, >1% Qtz 0.18 0.96 0.19 Front-end Loader Operator
2004-12-21 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2004-12-21 Quartz, respirable, >1% Qtz 0.35 0.93 0.38 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.
Ownership history
  1. A & A Materials Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2025 6
2024 5
2023 6
2022 5
2021 5
2020 5
2019 6
2018 7
2017 6
2016 6
2015 5
2014 5
2013 5
2012 3
2011 3
2010 3
2009 3
2008 3
2007 3
2006 3
2005 3
2004 3
2003 3
2002 2
2001 2
2000 3
Source: MSHA quarterly employment and production, updated weekly.

0SCREENING PLANT & SHOP 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 117 0 0 0.0
2026 Q1 104 0 0 0.0
2025 Q4 53 2 0 37735.8
2025 Q3 67 0 0 0.0
2025 Q2 76 0 0 0.0
2025 Q1 62 0 0 0.0
2024 Q4 77 3 1 38961.0
2024 Q3 12 5 0 416666.7
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 60 0 0 0.0
2024 Q1 20 0 0 0.0
2023 Q4 50 0 0 0.0
2023 Q3 23 0 0 0.0
2023 Q2 129 0 0 0.0
2023 Q1 128 0 0 0.0
2022 Q4 139 10 0 71942.4
2022 Q3 156 0 0 0.0
2022 Q2 152 0 0 0.0
2022 Q1 127 6 1 47244.1
2021 Q4 117 0 0 0.0
2021 Q3 174 0 0 0.0
2021 Q2 141 3 1 21276.6
2021 Q1 116 0 0 0.0
2020 Q4 80 10 4 125000.0
2020 Q3 312 0 0 0.0
2020 Q2 749 3 2 4005.3
2020 Q1 744 9 5 12096.8
2019 Q4 493 0 0 0.0
2019 Q3 504 0 0 0.0
2019 Q2 781 0 0 0.0
2019 Q1 806 3 1 3722.1
2018 Q4 805 0 0 0.0
2018 Q3 956 0 0 0.0
2018 Q2 805 6 2 7453.4
2018 Q1 704 0 0 0.0
2017 Q4 473 6 0 12685.0
2017 Q3 503 0 0 0.0
2017 Q2 654 5 2 7645.3
2017 Q1 704 0 0 0.0
2016 Q4 624 11 4 17628.2
2016 Q3 633 0 0 0.0
2016 Q2 679 0 0 0.0
2016 Q1 505 27 5 53465.3
2015 Q4 962 0 0 0.0
2015 Q3 1,283 0 0 0.0
2015 Q2 1,449 0 0 0.0
2015 Q1 677 0 0 0.0
2014 Q4 1,219 4 1 3281.4
2014 Q3 1,032 0 0 0.0
2014 Q2 502 0 0 0.0
2014 Q1 1,130 3 1 2654.9
2013 Q4 930 0 0 0.0
2013 Q3 1,398 1 0 715.3
2013 Q2 1,072 0 0 0.0
2013 Q1 690 9 2 13043.5
2012 Q4 62 0 0 0.0
2012 Q3 69 0 0 0.0
2012 Q2 128 0 0 0.0
2012 Q1 108 0 0 0.0
2011 Q4 17 4 3 235294.1
2011 Q3 102 1 0 9803.9
2011 Q2 135 1 0 7407.4
2011 Q1 82 0 0 0.0
2010 Q4 50 3 0 60000.0
2010 Q3 119 0 0 0.0
2010 Q2 154 0 0 0.0
2010 Q1 63 0 0 0.0
2009 Q4 82 2 0 24390.2
2009 Q3 105 0 0 0.0
2009 Q2 70 0 0 0.0
2009 Q1 55 0 0 0.0
2008 Q4 68 1 0 14705.9
2008 Q3 168 0 0 0.0
2008 Q2 296 0 0 0.0
2008 Q1 181 1 0 5524.9
2007 Q4 162 0 0 0.0
2007 Q3 224 0 0 0.0
2007 Q2 277 3 1 10830.3
2007 Q1 207 0 0 0.0
2006 Q4 320 0 0 0.0
2006 Q3 165 0 0 0.0
2006 Q2 119 22 8 184873.9
2006 Q1 248 0 0 0.0
2005 Q4 214 0 0 0.0
2005 Q3 221 0 0 0.0
2005 Q2 328 0 0 0.0
2005 Q1 241 0 0 0.0
2004 Q4 270 7 2 25925.9
2004 Q3 273 0 0 0.0
2004 Q2 171 2 1 11695.9
2004 Q1 203 0 0 0.0
2003 Q4 251 1 0 3984.1
2003 Q3 280 2 0 7142.9
2003 Q2 1,320 0 0 0.0
2003 Q1 1,320 0 0 0.0
2002 Q4 800 0 0 0.0
2002 Q3 800 0 0 0.0
2002 Q2 800 0 0 0.0
2002 Q1 800 0 0 0.0
2001 Q4 1,320 0 0 0.0
2001 Q3 1,300 0 0 0.0
2001 Q2 1,300 0 0 0.0
2001 Q1 1,300 0 0 0.0
2000 Q4 1,320 6 3 4545.5
2000 Q3 1,300 0 0 0.0
2000 Q2 1,300 31 17 23846.2
2000 Q1 1,320 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

1986 · 1 incident

October 28, 1986 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
A & A Materials Inc · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS PU7TING ADHESIVE DRESSING ON HEAD PULLEY FROM ENIPROPER LOCATION-HE DROPPED THE CAN OF ADHESIVE DRESSING & WHOLE REACHING FOR THE CAN CAUGHT HIS ARM IN PULLEY.