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Amrize Hassayampa Wash Plant: 99 MSHA citations Metal/Non-Metal

Amrize West Central · Surface
Controlled by Amrize Ltd
Buckeye, Maricopa County, AZ  ·  Active
MSHA Mine ID: 0203282

Amrize Hassayampa Wash Plant has $20K in proposed MSHA penalties and $302 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
2
Years on record
2015–2017
Latest incident
Nov 2017
Compliance record
MSHA citations since 2011
99
citations
31
significant & substantial
$20,145
proposed penalties
$19,843
paid to date
99% of proposed penalties paid to date, a $302 gap.
Source: MSHA violations data, updated weekly.
See Amrize West Central's full MSHA compliance history →
Inspection activity
MSHA inspections since 2011
39
inspections on record
509
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: 509 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Amrize Hassayampa Wash Plant has $20K in proposed MSHA penalties and $302 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.
$20K
proposed penalties
$20K
current assessed
$20K
paid to date
$302
outstanding
99 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-17.
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.
31.3%
significant & substantial
1.0%
high negligence or reckless
31.3%
reasonably likely or greater
41.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 4.0% low, 94.9% moderate, 1.0% 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: 2025-08-13
0%
of limit-tested samples over the exposure limit
19
samples
6
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz9
  • Respirable dust, <.1mg8
  • Nuisance dust, respirable, <1% Qtz1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (19)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-08-13 Quartz, respirable, >1% Qtz 0.52 0.7 0.74 Crusher Oper/Worker
2025-08-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-08-13 Quartz, respirable, >1% Qtz 0.16 Truck Driver
2024-04-23 Quartz, respirable, >1% Qtz 0.62 2 0.31 Mechanic
2024-04-23 Quartz, respirable, >1% Qtz 0.17 Lab Technician
2024-04-23 Quartz, respirable, >1% Qtz 0.31 1.47 0.21 Front-end Loader Operator
2024-04-23 Quartz, respirable, >1% Qtz 0.21 Washer Operator
2021-06-24 Quartz, respirable, >1% Qtz 0.88 0.95 0.93 Laborer, Bullgang
2021-06-24 Quartz, respirable, >1% Qtz 0.15 Truck Driver
2021-06-24 Respirable dust, <.1mg 0 Laborer, Bullgang
2021-06-24 Nuisance dust, respirable, <1% Qtz 0.2 10 0.02 Front-end Loader Operator
2017-02-23 Respirable dust, <.1mg 0 Truck Driver
2017-02-23 Respirable dust, <.1mg 0 Washer Operator
2017-02-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-05-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-05-28 Unlisted Particulate, respirable, <1% Qtz 0.14 Laborer, Bullgang
2014-05-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-07-14 Respirable dust, <.1mg 0 Washer Operator
2011-07-14 Quartz, respirable, >1% Qtz 0.12 1 0.12 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.

Amrize Hassayampa Wash 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
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
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 * 0.00 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.
Ownership history
  1. Pioneer Landscaping Materials Inc 2011 to 2023
  2. Amrize Southwest Inc. 2023 to 2026
  3. Amrize West Central 2026 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 21
2025 18
2024 15
2023 16
2022 15
2021 13
2020 13
2019 11
2018 10
2017 11
2016 17
2015 17
2014 16
2013 13
2012 7
2011 4
Source: MSHA quarterly employment and production, updated weekly.

Amrize Hassayampa Wash 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 Q2 14,830 0 0 0.0
2026 Q1 12,148 2 0 164.6
2025 Q4 21,178 0 0 0.0
2025 Q3 9,772 1 0 102.3
2025 Q2 11,266 0 0 0.0
2025 Q1 17,297 1 0 57.8
2024 Q4 9,393 0 0 0.0
2024 Q3 9,916 0 0 0.0
Show 53 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 9,448 1 1 105.8
2024 Q1 9,320 0 0 0.0
2023 Q4 7,667 19 5 2478.2
2023 Q3 7,688 4 1 520.3
2023 Q2 7,812 0 0 0.0
2023 Q1 8,484 3 1 353.6
2022 Q4 8,574 0 0 0.0
2022 Q3 8,434 0 0 0.0
2022 Q2 10,000 3 0 300.0
2022 Q1 10,758 0 0 0.0
2021 Q4 10,360 8 3 772.2
2021 Q3 8,779 0 0 0.0
2021 Q2 7,868 0 0 0.0
2021 Q1 8,029 9 2 1120.9
2020 Q4 9,688 0 0 0.0
2020 Q3 8,438 0 0 0.0
2020 Q2 8,375 0 0 0.0
2020 Q1 9,412 7 5 743.7
2019 Q4 8,138 0 0 0.0
2019 Q3 7,469 3 1 401.7
2019 Q2 6,618 0 0 0.0
2019 Q1 6,367 3 1 471.2
2018 Q4 5,711 0 0 0.0
2018 Q3 8,660 2 1 230.9
2018 Q2 5,926 0 0 0.0
2018 Q1 5,026 3 1 596.9
2017 Q4 3,857 3 2 777.8
2017 Q3 5,276 0 0 0.0
2017 Q2 6,449 0 0 0.0
2017 Q1 7,034 1 0 142.2
2016 Q4 7,207 0 0 0.0
2016 Q3 8,422 2 0 237.5
2016 Q2 7,684 0 0 0.0
2016 Q1 12,124 0 0 0.0
2015 Q4 8,860 3 0 338.6
2015 Q3 7,799 0 0 0.0
2015 Q2 10,267 1 1 97.4
2015 Q1 8,378 1 0 119.4
2014 Q4 8,098 0 0 0.0
2014 Q3 8,453 0 0 0.0
2014 Q2 8,040 3 2 373.1
2014 Q1 6,675 3 0 449.4
2013 Q4 5,800 0 0 0.0
2013 Q3 6,483 0 0 0.0
2013 Q2 6,952 3 2 431.5
2013 Q1 6,484 0 0 0.0
2012 Q4 4,322 5 2 1156.9
2012 Q3 3,034 0 0 0.0
2012 Q2 2,854 0 0 0.0
2012 Q1 2,504 2 0 798.7
2011 Q4 2,447 0 0 0.0
2011 Q3 2,875 3 0 1043.5
2011 Q2 290 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2017 · 1 incident

November 3, 2017 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Pioneer Landscaping Materials Inc · Caught in, under or between a moving and a stationary object

Cleaning bucket on loader. Hydraulic was leaking causing it to lower slowly. Lowered onto foot causing injury.

2015 · 1 incident

May 13, 2015 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Pioneer Landscaping Materials Inc · Caught in, under or between (Not Elsewhere Classified)

pulling 250# tail pulley back with come-along, to line up bearing. latch didn't catch & released itself, pulley moved forward pinning L hand between frame & pulley. Caught L middle, ring & little fingers.3 sutures on 3rd finger and 1 suture on 5th finger. Released for restricted, Right-hand duty 5/14/2015.