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Sheridan Quarry: 55 MSHA citations Metal/Non-Metal

Controlled by Richard Voss
Fremont, Alameda County, CA  ·  Active
MSHA Mine ID: 0405791

Sheridan Quarry has $12K in proposed MSHA penalties and $0 outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2017
Latest incident
Sep 2017
Compliance record
MSHA citations since 2010
55
citations
19
significant & substantial
$12,092
proposed penalties
$12,092
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Stevens Creek Quarry, Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2010
24
inspections on record
313
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: 313 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Sheridan Quarry has $12K in proposed MSHA penalties and $0 outstanding across 2 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.
$12K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
55 assessments are final orders; 2 contested dockets.
Of $400 in penalties contested before the Commission, $400 was upheld in final decisions.
As of the most recent assessment on 2025-11-18.
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.
34.5%
significant & substantial
14.5%
high negligence or reckless
34.5%
reasonably likely or greater
47.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 21.8% low, 63.6% moderate, 14.5% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
ⓘ Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
4 citations taken to the federal commission · 7% of citations on record
  • Settled 1 · 25%
  • Stood as issued 3 · 75%
0%
Penalty reduction in decided contests
$400 proposed, $400 after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2012-02-14.
Contested penalties
ⓘ A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEST 2010-1179M Default Lesnick 2011 $300 → $300
WEST 2012-521M Settlement Lesnick 2013 $100 → $100
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2025-11-19
0%
of limit-tested samples over the exposure limit
6
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Quartz, respirable, >1% Qtz2
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-11-19 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-07-24 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-01-28 Respirable dust, <.1mg 0 Scale Man
2020-01-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-02-10 Quartz, respirable, >1% Qtz 0.18 1.85 0.10 Laborer, Bullgang
2010-02-10 Quartz, respirable, >1% Qtz 0.3 2.05 0.15 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. Stevens Creek Quarry, Inc 2009 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 4
2024 5
2023 5
2022 5
2021 6
2020 5
2019 4
2018 5
2017 4
2016 3
2015 2
2014 1
2013 0
2012 2
2011 2
2010 4
2009 4
Source: MSHA quarterly employment and production, updated weekly.

Sheridan Quarry sits in Alameda County, California, where the Census mining category is 0.0% 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.
Alameda County, California · Population 1,651,949
0.0%
Mining share of county employment
$126,240
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 820 0 0 0.0
2026 Q1 752 0 0 0.0
2025 Q4 1,110 1 0 900.9
2025 Q3 746 0 0 0.0
2025 Q2 776 0 0 0.0
2025 Q1 728 0 0 0.0
2024 Q4 813 1 0 1230.0
2024 Q3 972 0 0 0.0
Show 60 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,586 13 5 8196.7
2024 Q1 1,418 1 0 705.2
2023 Q4 1,041 0 0 0.0
2023 Q3 1,705 1 0 586.5
2023 Q2 903 0 0 0.0
2023 Q1 818 0 0 0.0
2022 Q4 1,425 2 1 1403.5
2022 Q3 1,183 0 0 0.0
2022 Q2 1,816 2 1 1101.3
2022 Q1 962 0 0 0.0
2021 Q4 1,034 0 0 0.0
2021 Q3 1,327 0 0 0.0
2021 Q2 1,125 0 0 0.0
2021 Q1 2,694 0 0 0.0
2020 Q4 2,312 0 0 0.0
2020 Q3 1,217 0 0 0.0
2020 Q2 2,199 0 0 0.0
2020 Q1 792 2 0 2525.3
2019 Q4 1,039 0 0 0.0
2019 Q3 798 0 0 0.0
2019 Q2 813 0 0 0.0
2019 Q1 2,477 0 0 0.0
2018 Q4 1,411 3 1 2126.2
2018 Q3 1,403 0 0 0.0
2018 Q2 2,123 0 0 0.0
2018 Q1 1,848 12 10 6493.5
2017 Q4 1,321 0 0 0.0
2017 Q3 2,123 0 0 0.0
2017 Q2 1,108 0 0 0.0
2017 Q1 841 1 0 1189.1
2016 Q4 1,118 0 0 0.0
2016 Q3 945 1 0 1058.2
2016 Q2 73 1 0 13698.6
2016 Q1 58 0 0 0.0
2015 Q4 44 0 0 0.0
2015 Q3 52 0 0 0.0
2015 Q2 706 0 0 0.0
2015 Q1 31 0 0 0.0
2014 Q4 48 4 0 83333.3
2014 Q3 498 0 0 0.0
2014 Q2 0 0 0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 0 0 0
2013 Q2 0 0 0
2013 Q1 0 0 0
2012 Q4 624 0 0 0.0
2012 Q3 846 1 0 1182.0
2012 Q2 746 0 0 0.0
2012 Q1 535 0 0 0.0
2011 Q4 77 1 0 12987.0
2011 Q3 388 0 0 0.0
2011 Q2 429 0 0 0.0
2011 Q1 1,106 0 0 0.0
2010 Q4 2,258 0 0 0.0
2010 Q3 1,927 0 0 0.0
2010 Q2 1,631 0 0 0.0
2010 Q1 1,056 8 1 7575.8
2009 Q4 1,200 0 0 0.0
2009 Q3 1,142 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2017 · 1 incident

September 6, 2017 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Stevens Creek Quarry, Inc · Struck by powered moving object

Laborer was moving portable compactor from top of access road to bottom of access road. Compactor was in front bucket of backhoe. As laborer came to a stop, backhoe tires slopped and slid about one foot. Ground guide was bumped with bucket on left hip and buttocks. Ground guide received bruises and was prescribed pain meds. Work restrictions cannot be accommodated by employer.