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Sierra Ready Mix Quarry Metal/Non-Metal

Sierra Ready Mix · Surface
Jean, Clark County, NV  ·  Active
MSHA Mine ID: 2602594

Sierra Ready Mix Quarry has $82K in proposed MSHA penalties and $0 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
2
Years on record
2021–2023
Latest incident
Sep 2023
Compliance record
MSHA citations since 2007
180
citations
40
significant & substantial
$81,923
proposed penalties
$70,686
paid to date
86% of proposed penalties paid to date, a $11,237 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
52
inspections on record
1,159
inspection hours
15.5
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.
180 citations across 1,159 inspection hours.
Source: MSHA inspections data, updated weekly.

Sierra Ready Mix Quarry has $82K in proposed MSHA penalties and $0 outstanding across 5 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.
$82K
proposed penalties
$71K
current assessed
$71K
paid to date
$0
outstanding
168 assessments are final orders; 5 contested dockets.
As of the most recent assessment on 2025-10-07.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also the operator's enforcement record
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 4,178 7 0 1675.4
2025 Q3 6,104 0 0 0.0
2025 Q2 5,813 3 0 516.1
2025 Q1 8,339 5 2 599.6
2024 Q4 8,231 0 0 0.0
2024 Q3 7,958 12 7 1507.9
2024 Q2 6,631 0 0 0.0
2024 Q1 8,643 3 1 347.1
Show 71 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 7,831 1 1 127.7
2023 Q3 7,038 21 4 2983.8
2023 Q2 5,358 0 0 0.0
2023 Q1 5,293 6 1 1133.6
2022 Q4 5,582 0 0 0.0
2022 Q3 5,325 3 0 563.4
2022 Q2 5,463 0 0 0.0
2022 Q1 4,991 3 0 601.1
2021 Q4 4,834 0 0 0.0
2021 Q3 5,503 2 1 363.4
2021 Q2 1,559 2 2 1282.9
2021 Q1 4,831 6 2 1242.0
2020 Q4 5,887 0 0 0.0
2020 Q3 5,823 5 0 858.7
2020 Q2 4,917 0 0 0.0
2020 Q1 5,701 0 0 0.0
2019 Q4 7,590 6 1 790.5
2019 Q3 5,692 3 1 527.1
2019 Q2 5,631 0 0 0.0
2019 Q1 7,026 2 0 284.7
2018 Q4 7,270 0 0 0.0
2018 Q3 7,927 5 0 630.8
2018 Q2 7,127 0 0 0.0
2018 Q1 4,827 6 1 1243.0
2017 Q4 3,213 0 0 0.0
2017 Q3 5,310 8 3 1506.6
2017 Q2 5,147 0 0 0.0
2017 Q1 4,642 0 0 0.0
2016 Q4 4,682 3 0 640.8
2016 Q3 3,185 0 0 0.0
2016 Q2 3,433 4 3 1165.2
2016 Q1 3,727 5 0 1341.6
2015 Q4 3,405 0 0 0.0
2015 Q3 3,946 7 0 1773.9
2015 Q2 4,855 0 0 0.0
2015 Q1 3,863 0 0 0.0
2014 Q4 3,873 3 1 774.6
2014 Q3 4,051 4 0 987.4
2014 Q2 3,816 0 0 0.0
2014 Q1 3,616 7 3 1935.8
2013 Q4 3,875 0 0 0.0
2013 Q3 4,230 3 0 709.2
2013 Q2 3,724 0 0 0.0
2013 Q1 2,930 10 1 3413.0
2012 Q4 3,748 0 0 0.0
2012 Q3 2,931 4 0 1364.7
2012 Q2 2,667 0 0 0.0
2012 Q1 2,870 1 0 348.4
2011 Q4 3,194 0 0 0.0
2011 Q3 3,187 2 0 627.5
2011 Q2 2,852 0 0 0.0
2011 Q1 1,651 4 2 2422.8
2010 Q4 1,035 0 0 0.0
2010 Q3 1,373 3 1 2185.0
2010 Q2 1,622 0 0 0.0
2010 Q1 1,992 2 1 1004.0
2009 Q4 2,250 0 0 0.0
2009 Q3 2,358 0 0 0.0
2009 Q2 2,302 0 0 0.0
2009 Q1 2,001 0 0 0.0
2008 Q4 2,050 2 0 975.6
2008 Q3 2,437 0 0 0.0
2008 Q2 2,443 3 0 1228.0
2008 Q1 2,372 0 0 0.0
2007 Q4 2,376 0 0 0.0
2007 Q3 2,375 0 0 0.0
2007 Q2 2,648 1 0 377.6
2007 Q1 2,601 0 0 0.0
2006 Q4 2,282 0 0 0.0
2006 Q3 2,413 0 0 0.0
2006 Q2 2,125 0 0 0.0

Fatalities at this mine

1 recorded
February 25, 2021 NV · Metal/Non-Metal hydrate plant operator Fatality · SLIP OR FALL OF PERSON
Sierra Ready Mix · Fall from headframe, derrick or tower

The employee was last seen on top of the tower and determined to be missing. The employee was found in a pipe traveling from the cyclone discharge box to the thickener tank. Investigation has revealed that the employee traveled outside the provided safe access to the cyclone discharge box. It is not yet determined how the employee entered the pipe.

Reportable incidents

1 on file (excluding fatalities above)

2023 · 1 incident

September 28, 2023 NV · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
Sierra Ready Mix · Fall to lower level, (Not Elsewhere Classified)

EE was using marking paint to create a new berm that runs along the high wall. As the employee was marking the area along the high wall, this is when the EE fell from the high wall approximately 14 feet from the top of the high wall to the point where the EE laid at rest at the bottom of the high wall.

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The full compliance file on Sierra Ready Mix Quarry

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.

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