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Sloat Quarry: 21 MSHA citations Metal/Non-Metal

Joy Engineering · Surface
Controlled by Rick Joy
Sloat, Plumas County, CA  ·  Active
MSHA Mine ID: 0404410

Sloat Quarry has $2K 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
2
Years on record
2013–2018
Latest incident
Jul 2018
Compliance record
MSHA citations since 2006
21
citations
3
significant & substantial
$2,330
proposed penalties
$2,330
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Joy Engineering's full MSHA compliance history →
Inspection activity
MSHA inspections since 2006
31
inspections on record
428
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: 428 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Sloat Quarry has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
19 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2020-03-04.
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.
15.0%
significant & substantial
5.0%
high negligence or reckless
15.0%
reasonably likely or greater
30.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 25.0% low, 70.0% moderate, 5.0% 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: 2025-08-13
5
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg5
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-08-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-07-15 Respirable dust, <.1mg 0 Tractor Operator
2018-11-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-07-01 Respirable dust, <.1mg 0 Supervisor, Co. Official
2009-09-01 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. Butte Creek Rock Company 1980 to 2006
  2. Joy Engineering 2006 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 2
2023 2
2022 2
2021 2
2020 2
2019 2
2018 2
2017 3
2016 2
2015 2
2014 2
2013 2
2012 2
2011 2
2010 2
2009 3
2008 3
2007 3
2006 9
Source: MSHA quarterly employment and production, updated weekly.

Sloat Quarry sits in Plumas County, California, where the Census mining category is 0.5% 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.
Plumas County, California · Population 19,607
0.5%
Mining share of county employment
$64,946
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 1,167 0 0 0.0
2026 Q1 206 0 0 0.0
2025 Q4 1,259 0 0 0.0
2025 Q3 808 0 0 0.0
2025 Q2 1,161 0 0 0.0
2025 Q1 911 0 0 0.0
2024 Q4 849 0 0 0.0
2024 Q3 1,160 0 0 0.0
Show 73 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,305 0 0 0.0
2024 Q1 473 0 0 0.0
2023 Q4 579 0 0 0.0
2023 Q3 705 0 0 0.0
2023 Q2 1,375 0 0 0.0
2023 Q1 880 0 0 0.0
2022 Q4 471 0 0 0.0
2022 Q3 792 0 0 0.0
2022 Q2 1,421 0 0 0.0
2022 Q1 962 0 0 0.0
2021 Q4 341 0 0 0.0
2021 Q3 714 0 0 0.0
2021 Q2 1,226 0 0 0.0
2021 Q1 1,023 0 0 0.0
2020 Q4 1,450 0 0 0.0
2020 Q3 1,159 0 0 0.0
2020 Q2 1,167 0 0 0.0
2020 Q1 647 1 0 1545.6
2019 Q4 1,475 0 0 0.0
2019 Q3 1,234 0 0 0.0
2019 Q2 1,269 0 0 0.0
2019 Q1 172 0 0 0.0
2018 Q4 467 0 0 0.0
2018 Q3 1,392 0 0 0.0
2018 Q2 1,525 0 0 0.0
2018 Q1 67 0 0 0.0
2017 Q4 1,232 2 1 1623.4
2017 Q3 1,539 5 1 3248.9
2017 Q2 1,947 0 0 0.0
2017 Q1 293 0 0 0.0
2016 Q4 1,024 1 0 976.6
2016 Q3 1,512 0 0 0.0
2016 Q2 1,219 0 0 0.0
2016 Q1 769 0 0 0.0
2015 Q4 652 0 0 0.0
2015 Q3 952 0 0 0.0
2015 Q2 1,314 0 0 0.0
2015 Q1 851 0 0 0.0
2014 Q4 1,091 0 0 0.0
2014 Q3 609 2 0 3284.1
2014 Q2 1,643 0 0 0.0
2014 Q1 797 0 0 0.0
2013 Q4 1,014 0 0 0.0
2013 Q3 664 1 0 1506.0
2013 Q2 1,747 2 1 1144.8
2013 Q1 170 0 0 0.0
2012 Q4 612 0 0 0.0
2012 Q3 888 0 0 0.0
2012 Q2 1,236 0 0 0.0
2012 Q1 36 0 0 0.0
2011 Q4 972 0 0 0.0
2011 Q3 753 0 0 0.0
2011 Q2 1,868 0 0 0.0
2011 Q1 0 0 0
2010 Q4 475 0 0 0.0
2010 Q3 1,274 0 0 0.0
2010 Q2 927 0 0 0.0
2010 Q1 0 0 0
2009 Q4 1,115 0 0 0.0
2009 Q3 1,112 0 0 0.0
2009 Q2 1,250 0 0 0.0
2009 Q1 8 0 0 0.0
2008 Q4 1,431 0 0 0.0
2008 Q3 1,608 1 0 621.9
2008 Q2 1,219 0 0 0.0
2008 Q1 0 0 0
2007 Q4 1,625 0 0 0.0
2007 Q3 1,905 1 0 524.9
2007 Q2 2,267 0 0 0.0
2007 Q1 0 0 0
2006 Q4 712 0 0 0.0
2006 Q3 2,240 4 0 1785.7
2006 Q2 1,122 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2018 · 1 incident

July 12, 2018 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Joy Engineering · Fall onto or against objects

Employee was getting a 2100 screen on the lowebed trailer ready to mobilize. Employee was placing blocks by the goose neck as they were standing on the tires of the truck. Employee's left foot slipped, employee fell landing on their right side on fender of the truck.

2013 · 1 incident

April 13, 2013 CA · Metal/Non-Metal ledgeman/hand, quarry man POWERED HAULAGE
Joy Engineering · Caught in, under or between running or meshing objects

Plant laborer did not have supervisor follow Lock Out/ Tag -Out procedures prior to attempting to free a rock jammed conveyor. Upon removal of the debris at the tail pulley the conveyor began to run, at which time the laborers arm was pulled into the tail pulley resulting in a broken right arm above the elbow.