Mining Incidents

CEMEX-CASA GRANDE: 144 MSHA citations Metal/Non-Metal

Controlled by Cemex S A
Casa Grande, Pinal County, AZ  ·  Active
MSHA Mine ID: 0200717

CEMEX-CASA GRANDE has $32K 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
12
Years on record
1985–2012
Latest incident
Aug 2012
Compliance record
MSHA citations since 2000
144
citations
31
significant & substantial
$32,263
proposed penalties
$32,263
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
70
inspections on record
1,057
inspection hours
13.6
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.
144 citations across 1,057 inspection hours.
Source: MSHA inspections data, updated weekly.

CEMEX-CASA GRANDE has $32K 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.
$32K
proposed penalties
$32K
current assessed
$32K
paid to date
$0
outstanding
144 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-08-29.
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.
21.5%
significant & substantial
2.8%
high negligence or reckless
21.5%
reasonably likely or greater
52.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.7% none, 3.5% low, 93.1% moderate, 2.8% 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: 2024-08-30
16%
of limit-tested samples over the exposure limit
32
samples
19
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz213 over
  • Respirable dust, <.1mg10
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (32)
Date Contaminant Concentration Limit Conc / limit Occupation
2006-06-14 Quartz, respirable, >1% Qtz 2.08 0.71 2.93 Cleanup Man
2006-01-11 Quartz, respirable, >1% Qtz 2.34 0.56 4.18 Cleanup Man
2004-04-28 Quartz, respirable, >1% Qtz 3.51 0.53 6.62 Cleanup Man
2024-08-30 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2024-08-30 Unlisted Particulate, respirable, <1% Qtz 0.12 Truck Driver
2024-08-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-06-04 Quartz, respirable, >1% Qtz 0.19 Laborer, Bullgang
2019-06-04 Respirable dust, <.1mg 0 Truck Driver
2019-06-04 Respirable dust, <.1mg 0 Truck Driver
2019-06-04 Quartz, respirable, >1% Qtz 0.16 Front-end Loader Operator
2019-06-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2017-06-01 Quartz, respirable, >1% Qtz 0.24 0.75 0.32 Laborer, Bullgang
2017-06-01 Respirable dust, <.1mg 0 Complete Load-Haul-Dump
2017-06-01 Respirable dust, <.1mg 0 Truck Driver
2010-06-02 Quartz, respirable, >1% Qtz 0.25 1.88 0.13 Truck Driver
2010-06-02 Quartz, respirable, >1% Qtz 0.13 1.37 0.09 Front-end Loader Operator
2010-06-02 Quartz, respirable, >1% Qtz 0.17 1.13 0.15 Dry Screen Plant Operator
2009-06-09 Quartz, respirable, >1% Qtz 0.29 0.87 0.33 Crusher Oper/Worker
2009-06-09 Quartz, respirable, >1% Qtz 0.41 1.03 0.40 Truck Driver
2006-08-08 Quartz, respirable, >1% Qtz 0.16 0.77 0.21 Front-end Loader Operator
2006-08-08 Respirable dust, <.1mg 0 Crusher Oper/Worker
2006-08-08 Quartz, respirable, >1% Qtz 0.39 0.86 0.45 Cleanup Man
2006-06-14 Quartz, respirable, >1% Qtz 0.25 0.83 0.30 Crusher Oper/Worker
2006-01-11 Respirable dust, <.1mg 0 Truck Driver
2006-01-11 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-01-11 Quartz, respirable, >1% Qtz 0.68 1.05 0.65 Crusher Oper/Worker
2006-01-11 Quartz, respirable, >1% Qtz 0.34 0.56 0.61 Crusher Oper/Worker
2004-11-15 Quartz, respirable, >1% Qtz 0.23 0.73 0.32 Crusher Oper/Worker
2004-11-15 Quartz, respirable, >1% Qtz 0.12 0.48 0.25 Laborer, Bullgang
2004-11-15 Quartz, respirable, >1% Qtz 0.19 0.74 0.26 Truck Driver
2004-04-28 Quartz, respirable, >1% Qtz 0.36 1.48 0.24 Truck Driver
2004-04-28 Quartz, respirable, >1% Qtz 0.62 0.76 0.82 Crusher Oper/Worker
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.

CEMEX-CASA GRANDE recorded 0.00 reportable injury cases per 100 full-time workers in 2020.

Injury rate, 2020
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 1.77 and the all-US-mining average was 2.08 cases per 100 workers.
In Arizona, metal and nonmetal mining averaged 2.39 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
2020 * 0.00 0.00 0.000
2008 * 0.00 0.00 0.000
2007 * 0.00 0.00 0.000
2006 * 10.43 0.00 0.000
2005 * 4.43 0.00 0.000
2004 * 8.99 0.00 0.000
2003 * 0.00 0.00 0.000
2002 * 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. Tanner Companies 1950 to 1987
  2. Tanner Companies 1987 to 1994
  3. United Metro Materials Inc 1994 to 2002
  4. RINKER MATERIALS WESTERN INC 2002 to 2004
  5. RINKER MATERIALS 2004 to 2008
  6. CEMEX Construction Materials South, LLC 2008 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 7
2025 9
2024 9
2023 10
2022 9
2021 9
2020 8
2019 7
2018 7
2017 7
2016 9
2015 9
2014 9
2013 8
2012 6
2011 6
2010 6
2009 9
2008 20
2007 27
2006 30
2005 21
2004 27
2003 15
2002 13
2001 13
2000 14
Source: MSHA quarterly employment and production, updated weekly.

CEMEX-CASA GRANDE sits in Pinal County, Arizona, where the Census mining category is 0.8% 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.
Pinal County, Arizona · Population 449,219
0.8%
Mining share of county employment
$77,588
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 3,221 0 0 0.0
2026 Q1 3,609 0 0 0.0
2025 Q4 3,863 0 0 0.0
2025 Q3 4,650 0 0 0.0
2025 Q2 4,686 0 0 0.0
2025 Q1 4,256 0 0 0.0
2024 Q4 4,387 0 0 0.0
2024 Q3 4,557 1 0 219.4
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,835 0 0 0.0
2024 Q1 4,384 0 0 0.0
2023 Q4 4,742 0 0 0.0
2023 Q3 5,319 0 0 0.0
2023 Q2 5,179 0 0 0.0
2023 Q1 4,745 3 0 632.2
2022 Q4 5,347 0 0 0.0
2022 Q3 5,597 0 0 0.0
2022 Q2 5,450 0 0 0.0
2022 Q1 3,269 3 0 917.7
2021 Q4 5,136 0 0 0.0
2021 Q3 5,497 0 0 0.0
2021 Q2 4,909 0 0 0.0
2021 Q1 4,085 1 0 244.8
2020 Q4 4,816 0 0 0.0
2020 Q3 4,854 0 0 0.0
2020 Q2 5,558 3 0 539.8
2020 Q1 5,159 0 0 0.0
2019 Q4 4,886 3 0 614.0
2019 Q3 4,850 0 0 0.0
2019 Q2 4,693 0 0 0.0
2019 Q1 3,846 8 3 2080.1
2018 Q4 4,100 0 0 0.0
2018 Q3 4,165 0 0 0.0
2018 Q2 4,299 3 1 697.8
2018 Q1 3,550 0 0 0.0
2017 Q4 3,753 4 0 1065.8
2017 Q3 4,151 0 0 0.0
2017 Q2 4,038 2 0 495.3
2017 Q1 3,425 0 0 0.0
2016 Q4 3,585 3 0 836.8
2016 Q3 5,095 3 0 588.8
2016 Q2 4,602 0 0 0.0
2016 Q1 4,765 3 2 629.6
2015 Q4 4,474 0 0 0.0
2015 Q3 4,967 0 0 0.0
2015 Q2 4,699 0 0 0.0
2015 Q1 4,400 0 0 0.0
2014 Q4 4,121 2 0 485.3
2014 Q3 4,277 0 0 0.0
2014 Q2 4,029 0 0 0.0
2014 Q1 3,843 0 0 0.0
2013 Q4 3,434 0 0 0.0
2013 Q3 3,997 0 0 0.0
2013 Q2 4,160 1 0 240.4
2013 Q1 3,118 0 0 0.0
2012 Q4 2,888 0 0 0.0
2012 Q3 2,934 0 0 0.0
2012 Q2 2,189 2 0 913.7
2012 Q1 3,175 0 0 0.0
2011 Q4 2,761 1 0 362.2
2011 Q3 3,331 4 1 1200.8
2011 Q2 3,070 0 0 0.0
2011 Q1 2,519 2 0 794.0
2010 Q4 2,787 0 0 0.0
2010 Q3 2,712 0 0 0.0
2010 Q2 2,751 0 0 0.0
2010 Q1 2,971 0 0 0.0
2009 Q4 3,998 9 3 2251.1
2009 Q3 3,978 0 0 0.0
2009 Q2 3,560 9 3 2528.1
2009 Q1 4,407 0 0 0.0
2008 Q4 7,729 1 0 129.4
2008 Q3 11,732 0 0 0.0
2008 Q2 10,742 0 0 0.0
2008 Q1 12,310 0 0 0.0
2007 Q4 14,314 0 0 0.0
2007 Q3 15,604 0 0 0.0
2007 Q2 15,378 0 0 0.0
2007 Q1 13,872 0 0 0.0
2006 Q4 14,893 11 5 738.6
2006 Q3 14,640 0 0 0.0
2006 Q2 15,238 8 1 525.0
2006 Q1 12,754 9 0 705.7
2005 Q4 11,254 0 0 0.0
2005 Q3 9,902 1 0 101.0
2005 Q2 13,514 1 0 74.0
2005 Q1 10,455 1 0 95.6
2004 Q4 11,871 2 0 168.5
2004 Q3 10,813 0 0 0.0
2004 Q2 10,768 7 2 650.1
2004 Q1 11,032 0 0 0.0
2003 Q4 7,937 0 0 0.0
2003 Q3 8,656 3 0 346.6
2003 Q2 7,415 0 0 0.0
2003 Q1 4,766 0 0 0.0
2002 Q4 6,695 0 0 0.0
2002 Q3 6,938 2 0 288.3
2002 Q2 7,284 0 0 0.0
2002 Q1 7,453 0 0 0.0
2001 Q4 7,891 0 0 0.0
2001 Q3 6,802 0 0 0.0
2001 Q2 6,485 0 0 0.0
2001 Q1 6,455 0 0 0.0
2000 Q4 8,604 0 0 0.0
2000 Q3 7,110 12 1 1687.8
2000 Q2 9,103 0 0 0.0
2000 Q1 6,788 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

12 on file

2012 · 1 incident

August 6, 2012 AZ · Metal/Non-Metal outside foreman, leadman OTHER
CEMEX Construction Materials South, LLC · Bodily reaction, (Not Elsewhere Classified)

Operator was doing his pre-plant inspection and dropped his pen. When he bent over to get it he had a muscle spasm that put pressure on his Sciatic nerve resulting in pain in his leg.

2006 · 3 incidents

September 22, 2006 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
RINKER MATERIALS · Over-exertion (Not Elsewhere Classified)

EE was exiting loader, felt sharp pain in lower back

May 23, 2006 AZ · Metal/Non-Metal master mechanic, foreman, supervisor SLIP OR FALL OF PERSON
RINKER MATERIALS · Fall onto or against objects

EE was stepping over conveyor frame, foot slipped and cut shin above the boot

March 12, 2006 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
RINKER MATERIALS · Over-exertion in pulling or pushing objects

While puling on a bar to line up an I-Beam, employee felt a strain in his right shoulder.

2005 · 1 incident

June 8, 2005 AZ · Metal/Non-Metal welder (shop) SLIP OR FALL OF PERSON
RINKER MATERIALS · Over-exertion (Not Elsewhere Classified)

Employee getting out of the man lift and slipped on some sand - went to grab himself and according to employee "popped his right shoulder out of socket." Employee stated that this had happened before and he was able to pop back in place, did not want to go to docotr, however called next day and wanted to see a doctor.

2004 · 2 incidents

October 11, 2004 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
RINKER MATERIALS · Over-exertion (Not Elsewhere Classified)

Shoveling under crusher area belt and strained right forearm.

August 31, 2004 AZ · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
RINKER MATERIALS · Caught in, under or between (Not Elsewhere Classified)

EMPLOYEE WAS ASSISTING IN THE CHANGING OF BEARINGS ON A TAIL PULLEY, HE LEANED FORWARD AND HIS HAND SLIPPED CATCHING IT BETWEEN THE BEARING AND THE FRAME.

2001 · 1 incident

September 5, 2001 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
United Metro Materials Inc · Caught in, under or between (Not Elsewhere Classified)

EE WAS REPOSITIONING 10" PVC PIPE WHEN PIPE SLIPPED OFF BRACE AND CAUGHT EE'S LEFT HAND BETWEEN BRACE AND PIPE SEVERING MIDDLE FINGER OF LEFT HAND JUST BELOW FINGERNAIL.

1991 · 1 incident

November 8, 1991 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
Tanner Companies · Struck by falling object

CRUSHER LINER FELL OFF FORK-LIFT STRIKING EMPLOYEES FOOT

1986 · 1 incident

August 8, 1986 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Tanner Companies · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS TR3MMING A 1" INCH THICK PIECE OF RUBBER, HE HAD HIS FOREARM DOWN ON THE RUBBER TO HOLD IT, AS HE WAS PULLING HIS HAND THE KNIFE SLIPPED AND CUT HIS LEFT FOREARM.

1985 · 2 incidents

October 24, 1985 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Tanner Companies · Fall onto or against objects

EMPLOYEE WAS PR2ING A COUPLER IN PLACE HE SLIPPED AND FELL BACKWARDS INTO A FEED CATCH HOPPER ON A CONVEYOR

October 7, 1985 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Tanner Companies · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS CH5NGING A SCREEN ON A FEEDER HE TRIED TO THROW A SCREEN TO GROUND BUT IT CAUGHT ON HIS CLOTHING WEIGHT OF SCREEN & EMPLOYEES ATTEMPT TO HOLD SCREEN TO UNHOOK IT FROM HIS CLOTHING RESULTED IN HIM3STRAINING HIS BACK