Mining Incidents

Hwy 95 Pit: 38 MSHA citations Metal/Non-Metal

Nevada Building Supply LLC · Surface
WINNEMUCCA, Humboldt County, NV  ·  Intermittent
MSHA Mine ID: 2602643

Hwy 95 Pit has $5K 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
1
Years on record
2008
Latest incident
Jun 2008
Compliance record
MSHA citations since 2008
38
citations
10
significant & substantial
$5,391
proposed penalties
$5,391
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2008
44
inspections on record
394
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: 394 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Hwy 95 Pit has $5K 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.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
37 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-06-25.
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.
26.3%
significant & substantial
2.6%
high negligence or reckless
26.3%
reasonably likely or greater
50.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 2.6% low, 94.7% moderate, 2.6% 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: 2016-03-08, 10 years ago
0%
of limit-tested samples over the exposure limit
2
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2016-03-08 Quartz, respirable, >1% Qtz 0.39 1.84 0.21 Supervisor, Co. Official
2009-09-16 Quartz, respirable, >1% Qtz 0.29 1.21 0.24 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. Norman D Sweeney Construction 2008 to 2023
  2. Nevada Building Supply LLC 2023 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2024 2
2023 2
2022 2
2021 2
2020 1
2019 1
2018 2
2017 2
2016 1
2015 2
2014 2
2013 2
2012 1
2011 2
2010 2
2009 3
2008 2
Source: MSHA quarterly employment and production, updated weekly.

Hwy 95 Pit sits in Humboldt County, Nevada, where the Census mining category is 20.1% 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.
Humboldt County, Nevada · Population 17,299
20.1%
Mining share of county employment
$79,946
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 153 1 1 6535.9
2026 Q1 178 0 0 0.0
2025 Q4 380 0 0 0.0
2025 Q3 345 3 0 8695.7
2025 Q2 280 1 0 3571.4
2025 Q1 210 2 0 9523.8
2024 Q4 181 0 0 0.0
2024 Q3 160 1 0 6250.0
Show 65 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 80 0 0 0.0
2024 Q1 115 0 0 0.0
2023 Q4 270 0 0 0.0
2023 Q3 130 0 0 0.0
2023 Q2 10 0 0 0.0
2023 Q1 0 0 0
2022 Q4 37 0 0 0.0
2022 Q3 108 0 0 0.0
2022 Q2 160 2 0 12500.0
2022 Q1 102 0 0 0.0
2021 Q4 122 0 0 0.0
2021 Q3 167 0 0 0.0
2021 Q2 62 0 0 0.0
2021 Q1 57 0 0 0.0
2020 Q4 113 0 0 0.0
2020 Q3 202 0 0 0.0
2020 Q2 71 0 0 0.0
2020 Q1 0 0 0
2019 Q4 42 0 0 0.0
2019 Q3 71 0 0 0.0
2019 Q2 220 0 0 0.0
2019 Q1 316 0 0 0.0
2018 Q4 280 0 0 0.0
2018 Q3 350 0 0 0.0
2018 Q2 289 0 0 0.0
2018 Q1 300 0 0 0.0
2017 Q4 169 0 0 0.0
2017 Q3 457 0 0 0.0
2017 Q2 250 1 0 4000.0
2017 Q1 270 0 0 0.0
2016 Q4 267 0 0 0.0
2016 Q3 380 0 0 0.0
2016 Q2 250 0 0 0.0
2016 Q1 294 0 0 0.0
2015 Q4 333 0 0 0.0
2015 Q3 401 0 0 0.0
2015 Q2 452 0 0 0.0
2015 Q1 300 0 0 0.0
2014 Q4 330 0 0 0.0
2014 Q3 425 0 0 0.0
2014 Q2 670 0 0 0.0
2014 Q1 514 1 0 1945.5
2013 Q4 472 0 0 0.0
2013 Q3 881 0 0 0.0
2013 Q2 748 0 0 0.0
2013 Q1 479 0 0 0.0
2012 Q4 217 0 0 0.0
2012 Q3 478 0 0 0.0
2012 Q2 600 3 0 5000.0
2012 Q1 652 0 0 0.0
2011 Q4 698 0 0 0.0
2011 Q3 641 0 0 0.0
2011 Q2 1,159 2 2 1725.6
2011 Q1 355 0 0 0.0
2010 Q4 1,107 0 0 0.0
2010 Q3 183 0 0 0.0
2010 Q2 417 0 0 0.0
2010 Q1 539 0 0 0.0
2009 Q4 291 0 0 0.0
2009 Q3 724 2 0 2762.4
2009 Q2 1,667 0 0 0.0
2009 Q1 870 10 5 11494.3
2008 Q4 743 0 0 0.0
2008 Q3 228 0 0 0.0
2008 Q2 658 5 2 7598.8
No fatalities recorded at this mine.

Reportable incidents

1 on file

2008 · 1 incident

June 16, 2008 NV · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Norman D Sweeney Construction · Bodily reaction, (Not Elsewhere Classified)

Kneeling on the ground, went to stand up and heard a pop in his knee.