Mining Incidents

Portable Crusher #1 Metal/Non-Metal

Controlled by Granite Construction Inc
Dayton, Lyon County, NV  ·  Intermittent
MSHA Mine ID: 2602782

Portable Crusher #1 has $482 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 2015
4
citations
0
significant & substantial
$482
proposed penalties
$482
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
12
inspections on record
68
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: 68 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable Crusher #1 has $482 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.
$482
proposed penalties
$482
current assessed
$482
paid to date
$0
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-04-17.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 420 0 0 0.0
2025 Q3 27 0 0 0.0
2025 Q2 341 0 0 0.0
2025 Q1 0 0 0
2024 Q4 756 0 0 0.0
2024 Q3 745 0 0 0.0
2024 Q2 481 0 0 0.0
2024 Q1 0 0 0
Show 35 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 701 0 0 0.0
2023 Q3 320 0 0 0.0
2023 Q2 367 1 0 2724.8
2023 Q1 3 0 0 0.0
2022 Q4 901 0 0 0.0
2022 Q3 896 0 0 0.0
2022 Q2 186 0 0 0.0
2022 Q1 463 0 0 0.0
2021 Q4 240 0 0 0.0
2021 Q3 62 0 0 0.0
2021 Q2 1,944 0 0 0.0
2021 Q1 63 0 0 0.0
2020 Q4 1,414 0 0 0.0
2020 Q3 270 0 0 0.0
2020 Q2 588 1 0 1700.7
2020 Q1 557 0 0 0.0
2019 Q4 664 0 0 0.0
2019 Q3 612 0 0 0.0
2019 Q2 678 0 0 0.0
2019 Q1 422 0 0 0.0
2018 Q4 574 0 0 0.0
2018 Q3 367 0 0 0.0
2018 Q2 581 0 0 0.0
2018 Q1 1,395 0 0 0.0
2017 Q4 894 0 0 0.0
2017 Q3 1,070 0 0 0.0
2017 Q2 0 0 0
2017 Q1 712 1 0 1404.5
2016 Q4 597 0 0 0.0
2016 Q3 0 0 0
2016 Q2 0 0 0
2016 Q1 0 0 0
2015 Q4 518 1 0 1930.5
2015 Q3 79 0 0 0.0
2015 Q2 1,169 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.

For insurers, brokers, and safety consultants

The full compliance file on Portable Crusher #1

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.