Mendoza Quarry: 3 MSHA citations Metal/Non-Metal
Mendoza Quarry has no reportable incidents on file with MSHA.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2023
3
citations
0
significant & substantial
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2008
6
inspections on record
41
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: 41 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections 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.0.0%
significant & substantial
66.7%
high negligence or reckless
0.0%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 33.3% moderate, 66.7% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
- Mendoza Quarry 2008 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 2 |
| 2025 | 2 |
| 2024 | 2 |
| 2023 | 1 |
| 2022 | 4 |
| 2009 | 0 |
| 2008 | 2 |
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
Mendoza Quarry 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; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. 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 | 160 | 0 | 0 | 0.0 |
| 2026 Q1 | 160 | 0 | 0 | 0.0 |
| 2025 Q4 | 160 | 0 | 0 | 0.0 |
| 2025 Q3 | 160 | 0 | 0 | 0.0 |
| 2025 Q2 | 160 | 0 | 0 | 0.0 |
| 2025 Q1 | 160 | 0 | 0 | 0.0 |
| 2024 Q4 | 160 | 0 | 0 | 0.0 |
| 2024 Q3 | 160 | 1 | 0 | 6250.0 |
Show 13 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 160 | 0 | 0 | 0.0 |
| 2024 Q1 | 160 | 0 | 0 | 0.0 |
| 2023 Q4 | 1,440 | 0 | 0 | 0.0 |
| 2023 Q3 | 0 | 2 | 0 | |
| 2023 Q2 | 0 | 0 | 0 | |
| 2022 Q4 | 480 | 0 | 0 | 0.0 |
| 2022 Q3 | 1,920 | 0 | 0 | 0.0 |
| 2022 Q2 | 1,320 | 0 | 0 | 0.0 |
| 2009 Q2 | 0 | 0 | 0 | |
| 2009 Q1 | 0 | 0 | 0 | |
| 2008 Q4 | 363 | 0 | 0 | 0.0 |
| 2008 Q3 | 1,175 | 0 | 0 | 0.0 |
| 2008 Q2 | 440 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.