Mining Incidents

Montezuma Sand & Gravel: 25 MSHA citations Metal/Non-Metal

Controlled by James D Hatler
Jamestown, CA, Tuolumne County, CA  ·  Abandoned
MSHA Mine ID: 0405165

Montezuma Sand & Gravel has $2K in proposed MSHA penalties and $766 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2000
25
citations
1
significant & substantial
$2,234
proposed penalties
$1,468
paid to date
66% of proposed penalties paid to date, a $766 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
20
inspections on record
207
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: 207 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Montezuma Sand & Gravel has $2K in proposed MSHA penalties and $766 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.
$2K
proposed penalties
$2K
current assessed
$1K
paid to date
$766
outstanding
25 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2019-08-29.
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.
4.0%
significant & substantial
0.0%
high negligence or reckless
4.0%
reasonably likely or greater
48.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 20.0% low, 80.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Table Mountain Sand & Gravel Products Inc 1992 to 1998
  2. Montezuma Aggregates Inc 1998 to 2004
  3. Sierra Rock Products 2004 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 0
2025 0
2024 0
2023 1
2022 1
2021 1
2020 1
2019 1
2018 1
2017 1
2016 1
2015 1
2014 0
2013 1
2012 1
2011 1
2010 0
2009 1
2008 1
2007 2
2006 1
2005 1
2004 0
2000 4
Source: MSHA quarterly employment and production, updated weekly.

Montezuma Sand & Gravel sits in Tuolumne County, California, where the Census mining category is 0.3% 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.
Tuolumne County, California · Population 54,873
0.3%
Mining share of county employment
$72,259
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 0 0 0
2026 Q1 0 0 0
2025 Q4 0 0 0
2025 Q3 0 0 0
2025 Q2 0 0 0
2025 Q1 0 0 0
2024 Q4 0 0 0
2024 Q3 0 0 0
Show 81 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 0 0 0
2024 Q1 0 0 0
2023 Q4 8 0 0 0.0
2023 Q3 12 0 0 0.0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 100 0 0 0.0
2022 Q3 150 0 0 0.0
2022 Q2 250 0 0 0.0
2022 Q1 235 0 0 0.0
2021 Q4 100 0 0 0.0
2021 Q3 130 0 0 0.0
2021 Q2 362 0 0 0.0
2021 Q1 0 0 0
2020 Q4 40 0 0 0.0
2020 Q2 65 0 0 0.0
2020 Q1 40 0 0 0.0
2019 Q4 120 0 0 0.0
2019 Q3 180 8 0 44444.4
2019 Q2 152 0 0 0.0
2019 Q1 0 0 0
2018 Q4 60 0 0 0.0
2018 Q3 285 0 0 0.0
2018 Q2 40 0 0 0.0
2018 Q1 0 0 0
2017 Q4 120 0 0 0.0
2017 Q3 204 0 0 0.0
2017 Q2 180 0 0 0.0
2017 Q1 15 0 0 0.0
2016 Q4 60 0 0 0.0
2016 Q3 180 0 0 0.0
2016 Q2 160 0 0 0.0
2016 Q1 36 0 0 0.0
2015 Q4 10 0 0 0.0
2015 Q3 138 0 0 0.0
2015 Q2 148 0 0 0.0
2015 Q1 12 0 0 0.0
2014 Q4 0 0 0
2014 Q3 0 0 0
2014 Q2 120 0 0 0.0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 40 0 0 0.0
2013 Q2 146 0 0 0.0
2013 Q1 0 0 0
2012 Q4 0 0 0
2012 Q3 160 0 0 0.0
2011 Q4 43 0 0 0.0
2011 Q3 160 0 0 0.0
2011 Q2 0 0 0
2011 Q1 0 0 0
2010 Q4 0 0 0
2010 Q3 0 0 0
2010 Q1 0 0 0
2009 Q4 50 0 0 0.0
2009 Q3 405 1 0 2469.1
2009 Q2 0 1 0
2009 Q1 0 0 0
2008 Q4 0 0 0
2008 Q3 325 0 0 0.0
2008 Q2 375 0 0 0.0
2008 Q1 0 2 0
2007 Q4 300 0 0 0.0
2007 Q3 300 1 0 3333.3
2007 Q2 227 0 0 0.0
2007 Q1 125 0 0 0.0
2006 Q4 0 0 0
2006 Q3 200 0 0 0.0
2006 Q2 120 0 0 0.0
2006 Q1 63 0 0 0.0
2005 Q4 5 0 0 0.0
2005 Q3 0 0 0
2005 Q2 20 0 0 0.0
2005 Q1 0 0 0
2004 Q4 0 0 0
2004 Q3 250 0 0 0.0
2004 Q2 0 0 0
2000 Q4 1,868 0 0 0.0
2000 Q3 1,920 0 0 0.0
2000 Q2 1,920 12 1 6250.0
2000 Q1 1,977 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.