Mining Incidents

Larranaga Pit: 31 MSHA citations Metal/Non-Metal

Larranaga Trucking & Construction · Surface
Controlled by Fernand Larranaga
Alturas, Modoc County, CA  ·  Intermittent
MSHA Mine ID: 0405523

Larranaga Pit has $4K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2008
31
citations
4
significant & substantial
$3,583
proposed penalties
$3,583
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
23
inspections on record
315
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: 315 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Larranaga Pit has $4K 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
31 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-07-09.
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.
12.9%
significant & substantial
3.2%
high negligence or reckless
12.9%
reasonably likely or greater
38.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 0.0% low, 96.8% moderate, 3.2% 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: 2010-05-05, 16 years ago
3
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg3
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2010-05-05 Respirable dust, <.1mg 0 Utility Man
2010-05-05 Respirable dust, <.1mg 0 Utility Man
2010-05-05 Respirable dust, <.1mg 0 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.
Ownership history
  1. Larranaga Trucking 2002 to 2006
  2. Larranaga Trucking Inc 2007 to 2010
  3. Larranaga Construction Inc. 2010 to 2010
  4. Larranaga Trucking & Construction 2011 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 3
2025 6
2024 4
2023 4
2022 3
2021 3
2020 2
2019 1
2018 0
2017 1
2016 2
2015 5
2014 3
2013 3
2012 4
2011 3
2010 2
2009 2
2008 5
2007 5
2006 2
2003 1
2002 2
Source: MSHA quarterly employment and production, updated weekly.

Larranaga Pit sits in Modoc County, California, where the Census mining category is 0.0% 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.
Modoc County, California · Population 8,646
0.0%
Mining share of county employment
$56,648
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 875 0 0 0.0
2026 Q1 0 0 0
2025 Q4 570 0 0 0.0
2025 Q3 1,411 1 0 708.7
2025 Q2 1,464 0 0 0.0
2025 Q1 1,084 0 0 0.0
2024 Q4 465 0 0 0.0
2024 Q3 1,554 2 0 1287.0
Show 79 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 537 0 0 0.0
2024 Q1 0 0 0
2023 Q4 473 0 0 0.0
2023 Q3 486 0 0 0.0
2023 Q2 702 0 0 0.0
2023 Q1 738 0 0 0.0
2022 Q4 550 0 0 0.0
2022 Q3 841 0 0 0.0
2022 Q2 919 0 0 0.0
2022 Q1 900 0 0 0.0
2021 Q4 761 0 0 0.0
2021 Q3 1,181 0 0 0.0
2021 Q2 800 0 0 0.0
2021 Q1 0 0 0
2020 Q4 0 0 0
2020 Q3 359 0 0 0.0
2020 Q2 896 2 0 2232.1
2020 Q1 0 0 0
2019 Q4 1,008 0 0 0.0
2019 Q3 0 0 0
2019 Q2 0 0 0
2019 Q1 0 0 0
2018 Q4 0 0 0
2018 Q3 0 0 0
2018 Q2 0 0 0
2018 Q1 1 0 0 0.0
2017 Q4 3 0 0 0.0
2017 Q3 10 0 0 0.0
2017 Q2 0 0 0
2017 Q1 40 0 0 0.0
2016 Q4 38 0 0 0.0
2016 Q3 1 1 0 1000000.0
2016 Q2 351 0 0 0.0
2016 Q1 0 0 0
2015 Q4 687 0 0 0.0
2015 Q3 607 7 0 11532.1
2015 Q2 730 0 0 0.0
2015 Q1 868 0 0 0.0
2014 Q4 368 0 0 0.0
2014 Q3 50 0 0 0.0
2014 Q2 206 0 0 0.0
2014 Q1 0 0 0
2013 Q4 277 0 0 0.0
2013 Q3 651 0 0 0.0
2013 Q2 690 4 2 5797.1
2013 Q1 0 0 0
2012 Q4 820 0 0 0.0
2012 Q3 538 1 0 1858.7
2012 Q2 944 0 0 0.0
2012 Q1 432 0 0 0.0
2011 Q4 929 0 0 0.0
2011 Q3 1,003 1 0 997.0
2011 Q2 421 0 0 0.0
2011 Q1 0 0 0
2010 Q4 0 0 0
2010 Q3 667 1 0 1499.3
2010 Q2 1,250 3 1 2400.0
2010 Q1 0 0 0
2009 Q4 1,700 0 0 0.0
2009 Q3 1,778 7 1 3937.0
2009 Q2 0 0 0
2009 Q1 0 0 0
2008 Q4 800 0 0 0.0
2008 Q3 1,830 0 0 0.0
2008 Q2 1,900 1 0 526.3
2008 Q1 400 0 0 0.0
2007 Q4 673 0 0 0.0
2007 Q3 2,540 0 0 0.0
2007 Q2 2,240 0 0 0.0
2007 Q1 0 0 0
2006 Q4 360 0 0 0.0
2006 Q3 1,460 0 0 0.0
2006 Q2 0 0 0
2003 Q4 0 0 0
2003 Q2 0 0 0
2003 Q1 423 0 0 0.0
2002 Q4 0 0 0
2002 Q3 720 0 0 0.0
2002 Q2 180 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.