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CEMEX-GRAY MOUNTAIN: 131 MSHA citations Metal/Non-Metal

Controlled by Cemex S A
Flagstaff, Coconino County, AZ  ·  Active
MSHA Mine ID: 0202851

CEMEX-GRAY MOUNTAIN has $63K in proposed MSHA penalties and $2K outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
6
Years on record
2000–2021
Latest incident
Apr 2021
Compliance record
MSHA citations since 2000
131
citations
40
significant & substantial
$62,710
proposed penalties
$60,842
paid to date
97% of proposed penalties paid to date, a $1,868 gap.
Source: MSHA violations data, updated weekly.
See CEMEX Construction Materials South LLC's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
71
inspections on record
1,009
inspection hours
13.0
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.
131 citations across 1,009 inspection hours.
Source: MSHA inspections data, updated weekly.

CEMEX-GRAY MOUNTAIN has $63K in proposed MSHA penalties and $2K 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.
$63K
proposed penalties
$63K
current assessed
$61K
paid to date
$2K
outstanding
131 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-05-13.
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.
30.5%
significant & substantial
3.1%
high negligence or reckless
30.5%
reasonably likely or greater
55.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 96.9% moderate, 3.1% 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: 2026-02-12
0%
of limit-tested samples over the exposure limit
32
samples
9
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg10
  • Unlisted Particulate, respirable, <1% Qtz10
  • Quartz, respirable, >1% Qtz7
  • Nuisance dust, respirable, <1% Qtz3
Show the individual readings (32)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-02-12 Respirable dust, <.1mg 0 Truck Driver
2026-02-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-11-19 Unlisted Particulate, respirable, <1% Qtz 0.19 Utility Man
2024-11-19 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-11-19 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-11-19 Respirable dust, <.1mg 0 Crusher Oper/Worker
2019-05-09 Respirable dust, <.1mg 0 Drill Helper
2019-05-09 Quartz, respirable, >1% Qtz 0.28 0.87 0.32 Supervisor, Co. Official
2019-05-09 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-05-09 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-05-09 Quartz, respirable, >1% Qtz 0.47 Crusher Oper/Worker
2016-11-15 Quartz, respirable, >1% Qtz 0.33 2.36 0.14 Crusher Oper/Worker
2014-06-25 Quartz, respirable, >1% Qtz 0.93 3.02 0.31 Crusher Oper/Worker
2014-06-25 Quartz, respirable, >1% Qtz 0.49 2.11 0.23 Front-end Loader Operator
2014-06-25 Unlisted Particulate, respirable, <1% Qtz 0.22 Front-end Loader Operator
2009-05-28 Unlisted Particulate, respirable, <1% Qtz 1.04 Crusher Oper/Worker
2009-05-28 Unlisted Particulate, respirable, <1% Qtz 1.13 Crusher Oper/Worker
2009-05-28 Unlisted Particulate, respirable, <1% Qtz 0.46 Tractor Operator
2009-05-28 Quartz, respirable, >1% Qtz 0.59 2.9 0.20 Front-end Loader Operator
2006-07-11 Unlisted Particulate, respirable, <1% Qtz 0.93 Crusher Oper/Worker
2006-07-11 Unlisted Particulate, respirable, <1% Qtz 0.24 Truck Driver
2006-07-11 Unlisted Particulate, respirable, <1% Qtz 0.2 Front-end Loader Operator
2006-07-11 Quartz, respirable, >1% Qtz 0.43 2.71 0.16 Crusher Oper/Worker
2005-06-14 Unlisted Particulate, respirable, <1% Qtz 1.55 Laborer, Bullgang
2005-06-14 Unlisted Particulate, total, <1% Qtz 6.2 Crusher Oper/Worker
2005-06-14 Unlisted Particulate, total, <1% Qtz 23.35 Laborer, Bullgang
2005-06-14 Unlisted Particulate, respirable, <1% Qtz 0.74 Crusher Oper/Worker
2001-06-27 Nuisance dust, respirable, <1% Qtz 0.42 10 0.04 Crusher Oper/Worker
2001-06-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2001-06-27 Respirable dust, <.1mg 0 Truck Driver
2001-06-27 Nuisance dust, respirable, <1% Qtz 0.12 10 0.01 Front-end Loader Operator
2001-06-27 Nuisance dust, respirable, <1% Qtz 0.65 10 0.07 Cleanup Man
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-GRAY MOUNTAIN 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 * 0.00 0.00 0.000
2020 * 9.78 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 0.00 0.00 0.000
2017 * 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. United Metro Materials Inc 1999 to 2002
  2. Rinker Materials Western Inc. 2002 to 2004
  3. RINKER MATERIALS 2004 to 2008
  4. CEMEX Construction Materials South LLC 2008 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 12
2025 11
2024 11
2023 9
2022 9
2021 8
2020 8
2019 9
2018 11
2017 11
2016 13
2015 13
2014 12
2013 12
2012 11
2011 9
2010 10
2009 8
2008 9
2007 8
2006 9
2005 12
2004 12
2003 10
2002 12
2001 11
2000 8
Source: MSHA quarterly employment and production, updated weekly.

CEMEX-GRAY MOUNTAIN sits in Coconino 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.
Coconino County, Arizona · Population 144,643
0.2%
Mining share of county employment
$69,748
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 7,414 2 0 269.8
2026 Q1 6,006 0 0 0.0
2025 Q4 6,234 0 0 0.0
2025 Q3 7,188 0 0 0.0
2025 Q2 6,834 0 0 0.0
2025 Q1 5,921 0 0 0.0
2024 Q4 6,642 0 0 0.0
2024 Q3 7,564 1 0 132.2
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 7,089 0 0 0.0
2024 Q1 4,705 0 0 0.0
2023 Q4 5,195 0 0 0.0
2023 Q3 5,833 0 0 0.0
2023 Q2 5,937 1 0 168.4
2023 Q1 4,639 0 0 0.0
2022 Q4 4,601 4 0 869.4
2022 Q3 5,728 0 0 0.0
2022 Q2 7,265 1 0 137.6
2022 Q1 3,240 0 0 0.0
2021 Q4 4,593 1 0 217.7
2021 Q3 5,369 0 0 0.0
2021 Q2 5,030 0 0 0.0
2021 Q1 3,054 0 0 0.0
2020 Q4 5,586 0 0 0.0
2020 Q3 5,552 0 0 0.0
2020 Q2 5,511 2 0 362.9
2020 Q1 3,793 0 0 0.0
2019 Q4 3,751 2 0 533.2
2019 Q3 5,070 0 0 0.0
2019 Q2 6,487 5 1 770.8
2019 Q1 5,352 0 0 0.0
2018 Q4 6,343 0 0 0.0
2018 Q3 7,054 0 0 0.0
2018 Q2 6,796 8 3 1177.2
2018 Q1 6,585 0 0 0.0
2017 Q4 5,630 6 4 1065.7
2017 Q3 6,230 0 0 0.0
2017 Q2 6,962 1 0 143.6
2017 Q1 7,376 0 0 0.0
2016 Q4 6,799 2 0 294.2
2016 Q3 8,743 0 0 0.0
2016 Q2 9,661 8 3 828.1
2016 Q1 6,381 0 0 0.0
2015 Q4 6,497 8 2 1231.3
2015 Q3 10,209 0 0 0.0
2015 Q2 8,779 0 0 0.0
2015 Q1 7,461 2 0 268.1
2014 Q4 9,069 0 0 0.0
2014 Q3 9,656 0 0 0.0
2014 Q2 7,758 8 3 1031.2
2014 Q1 5,173 0 0 0.0
2013 Q4 5,282 6 3 1135.9
2013 Q3 7,807 0 0 0.0
2013 Q2 9,640 1 0 103.7
2013 Q1 5,870 0 0 0.0
2012 Q4 6,253 1 0 159.9
2012 Q3 8,116 0 0 0.0
2012 Q2 5,978 5 2 836.4
2012 Q1 4,830 3 2 621.1
2011 Q4 4,342 0 0 0.0
2011 Q3 5,340 0 0 0.0
2011 Q2 5,783 4 1 691.7
2011 Q1 4,331 1 0 230.9
2010 Q4 4,333 0 0 0.0
2010 Q3 9,101 0 0 0.0
2010 Q2 6,766 2 0 295.6
2010 Q1 3,505 4 2 1141.2
2009 Q4 4,430 0 0 0.0
2009 Q3 5,669 0 0 0.0
2009 Q2 4,116 0 0 0.0
2009 Q1 3,296 0 0 0.0
2008 Q4 5,673 2 0 352.5
2008 Q3 6,750 0 0 0.0
2008 Q2 3,875 1 0 258.1
2008 Q1 4,311 1 0 232.0
2007 Q4 4,522 0 0 0.0
2007 Q3 5,287 1 0 189.1
2007 Q2 5,476 0 0 0.0
2007 Q1 4,766 0 0 0.0
2006 Q4 5,388 0 0 0.0
2006 Q3 5,603 1 0 178.5
2006 Q2 5,652 0 0 0.0
2006 Q1 5,150 0 0 0.0
2005 Q4 6,312 0 0 0.0
2005 Q3 6,857 0 0 0.0
2005 Q2 6,629 1 1 150.9
2005 Q1 4,920 0 0 0.0
2004 Q4 5,399 0 0 0.0
2004 Q3 7,576 7 0 924.0
2004 Q2 5,833 1 1 171.4
2004 Q1 4,766 4 2 839.3
2003 Q4 6,675 0 0 0.0
2003 Q3 8,261 0 0 0.0
2003 Q2 4,712 0 0 0.0
2003 Q1 3,741 0 0 0.0
2002 Q4 4,916 2 2 406.8
2002 Q3 5,138 0 0 0.0
2002 Q2 5,250 3 0 571.4
2002 Q1 4,569 0 0 0.0
2001 Q4 5,302 0 0 0.0
2001 Q3 6,419 0 0 0.0
2001 Q2 4,966 3 1 604.1
2001 Q1 6,114 0 0 0.0
2000 Q4 1,505 1 0 664.5
2000 Q3 2,529 3 2 1186.2
2000 Q2 4,132 0 0 0.0
2000 Q1 3,454 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

2021 · 1 incident

April 1, 2021 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
CEMEX Construction Materials South LLC · Fall from ladders

The employee began to set up a 6' ladder to begin working on the belt scales. When the employee reached the 4th rung, the employee realized the ladder will not be tall enough to perform the job tasks. While climbing down the ladder, the ladder then toppled over causing the employee to fall, injuring right ankle. Employee is unsure as to how the ladder toppled over.

2020 · 1 incident

November 2, 2020 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
CEMEX Construction Materials South LLC · Caught in, under or between a moving and a stationary object

As EE pulled on the wrench, it slipped and the wrench struck the tip of EE's finger smashing it between the wrench and the bumper of the truck. EE was taken to the clinic where it was determined that EE suffered from a laceration to the tip of the finger which required 3 stitches and a fracture to the bone as well

2016 · 2 incidents

March 16, 2016 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
CEMEX Construction Materials South LLC · Struck by falling object

Employee was was on the cat walk of the cone crusher checking for bowl float when the cone over flowed and an 8" rock fell down cutting ee left little finger that required three stitches

2013 · 1 incident

September 12, 2013 AZ · Metal/Non-Metal clerk, timekeeper, office worker, director of sales SLIP OR FALL OF PERSON
CEMEX Construction Materials South LLC · Over-exertion (Not Elsewhere Classified)

Bottom of stairs going to office there is a rubber mat and with all the rain received at locations scale operator coming out of scale office and slipped on rubber mat twisting her knee causing knee injury.

2000 · 1 incident

July 30, 2000 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
United Metro Materials Inc · Fall from scaffolds, walkways, platforms

EMPLOYEE WAS LEANING AGAINST RAILING ON CATWALK WHEN ANCHOR POST BROKE CAUSING HIM TO FALL BACKWAYRS APPROX. 2 1/2 FT., LANDING ON HIS BACK AND CAUSING A COMPRESSION FRACTURE TO LUMBAR #1.