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Sparrock Pit: 20 MSHA citations Metal/Non-Metal

Joy Engineering · Surface
Controlled by Rick Joy
Vinton, Plumas County, CA  ·  Intermittent
MSHA Mine ID: 0405515

Sparrock Pit 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
1
Years on record
2025
Latest incident
Oct 2025
Compliance record
MSHA citations since 2006
20
citations
5
significant & substantial
$1,785
proposed penalties
$1,785
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 2002
28
inspections on record
246
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: 246 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Sparrock Pit 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 2026-03-25.
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.
25.0%
significant & substantial
0.0%
high negligence or reckless
25.0%
reasonably likely or greater
20.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 10.0% low, 90.0% moderate, 0.0% 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: 2024-08-07
0%
of limit-tested samples over the exposure limit
5
samples
4
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz3
  • Nuisance dust, respirable, <1% Qtz1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-08-07 Nuisance dust, respirable, <1% Qtz 0.12 10 0.01 Truck Driver
2018-10-15 Unlisted Particulate, respirable, <1% Qtz 0.2 Truck Driver
2008-05-01 Quartz, respirable, >1% Qtz 0.51 2.73 0.19 Backhoe Operator
2008-05-01 Quartz, respirable, >1% Qtz 1.16 2.88 0.40 Backhoe Operator
2008-05-01 Quartz, respirable, >1% Qtz 0.85 2.9 0.29 Laborer, Bullgang
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. Joy Engineering 2002 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 2
2024 3
2023 1
2022 1
2021 1
2020 2
2019 2
2018 2
2017 1
2016 1
2015 2
2014 1
2013 1
2012 2
2011 3
2010 2
2009 3
2008 3
2007 3
2006 5
2005 5
2004 3
2003 2
2002 9
Source: MSHA quarterly employment and production, updated weekly.

Sparrock Pit 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 3 0 0 0.0
2026 Q1 0 1 0
2025 Q4 16 0 0 0.0
2025 Q3 567 0 0 0.0
2025 Q2 2,037 0 0 0.0
2025 Q1 41 0 0 0.0
2024 Q4 5 0 0 0.0
2024 Q3 665 0 0 0.0
Show 90 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 903 0 0 0.0
2024 Q1 1,578 0 0 0.0
2023 Q4 31 0 0 0.0
2023 Q3 71 0 0 0.0
2023 Q2 59 0 0 0.0
2023 Q1 25 0 0 0.0
2022 Q4 12 0 0 0.0
2022 Q3 231 0 0 0.0
2022 Q2 11 0 0 0.0
2022 Q1 18 0 0 0.0
2021 Q4 160 0 0 0.0
2021 Q3 0 0 0
2021 Q2 81 0 0 0.0
2021 Q1 518 0 0 0.0
2020 Q4 264 0 0 0.0
2020 Q3 828 0 0 0.0
2020 Q2 581 0 0 0.0
2020 Q1 233 0 0 0.0
2019 Q4 208 0 0 0.0
2019 Q3 1,212 0 0 0.0
2019 Q2 1,525 0 0 0.0
2019 Q1 207 0 0 0.0
2018 Q4 216 1 1 4629.6
2018 Q3 1,225 0 0 0.0
2018 Q2 495 0 0 0.0
2018 Q1 774 0 0 0.0
2017 Q4 332 0 0 0.0
2017 Q3 0 1 0
2017 Q2 62 0 0 0.0
2017 Q1 19 0 0 0.0
2016 Q4 0 0 0
2016 Q3 17 0 0 0.0
2016 Q2 0 0 0
2016 Q1 511 0 0 0.0
2015 Q4 2 0 0 0.0
2015 Q3 247 1 0 4048.6
2015 Q2 432 0 0 0.0
2015 Q1 174 0 0 0.0
2014 Q4 35 0 0 0.0
2014 Q3 405 0 0 0.0
2014 Q2 2 0 0 0.0
2014 Q1 0 0 0
2013 Q4 194 0 0 0.0
2013 Q3 0 0 0
2013 Q2 2 0 0 0.0
2013 Q1 0 0 0
2012 Q4 0 0 0
2012 Q3 140 1 0 7142.9
2012 Q2 710 0 0 0.0
2012 Q1 226 0 0 0.0
2011 Q4 275 0 0 0.0
2011 Q3 1,216 0 0 0.0
2011 Q2 756 0 0 0.0
2011 Q1 491 0 0 0.0
2010 Q4 30 0 0 0.0
2010 Q3 128 0 0 0.0
2010 Q2 930 3 2 3225.8
2010 Q1 23 0 0 0.0
2009 Q4 266 0 0 0.0
2009 Q3 1,824 1 1 548.2
2009 Q2 1,681 0 0 0.0
2009 Q1 125 0 0 0.0
2008 Q4 394 0 0 0.0
2008 Q3 51 0 0 0.0
2008 Q2 2,916 5 1 1714.7
2008 Q1 296 0 0 0.0
2007 Q4 795 0 0 0.0
2007 Q3 186 0 0 0.0
2007 Q2 188 0 0 0.0
2007 Q1 327 0 0 0.0
2006 Q4 15 0 0 0.0
2006 Q3 45 0 0 0.0
2006 Q2 1,222 6 0 4910.0
2006 Q1 1 0 0 0.0
2005 Q4 1 0 0 0.0
2005 Q3 36 0 0 0.0
2005 Q2 2,173 0 0 0.0
2005 Q1 553 0 0 0.0
2004 Q4 13 0 0 0.0
2004 Q3 93 0 0 0.0
2004 Q2 79 0 0 0.0
2004 Q1 1 0 0 0.0
2003 Q4 1 0 0 0.0
2003 Q3 1 0 0 0.0
2003 Q2 681 0 0 0.0
2003 Q1 39 0 0 0.0
2002 Q4 25 0 0 0.0
2002 Q3 445 0 0 0.0
2002 Q2 2,008 0 0 0.0
2002 Q1 669 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2025 · 1 incident

October 31, 2025 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Joy Engineering · Fall from machine

Employee was getting out of loader stepped on first step and fell backwards. Employee has had lower back pain.