Mining Incidents

VINEYARD ROCK: 83 MSHA citations Metal/Non-Metal

Vineyard Rock Products · Surface
Controlled by Robert W Enz
Hollister, San Benito County, CA  ·  Active
MSHA Mine ID: 0405619

VINEYARD ROCK has $16K in proposed MSHA penalties and $0 outstanding across 4 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 2006
83
citations
17
significant & substantial
$15,731
proposed penalties
$10,984
paid to date
70% of proposed penalties paid to date, a $4,747 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
39
inspections on record
460
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: 460 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

VINEYARD ROCK has $16K in proposed MSHA penalties and $0 outstanding across 4 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.
$16K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
77 assessments are final orders; 4 contested dockets.
Of $9K in penalties contested before the Commission, $3K was upheld in final decisions.
As of the most recent assessment on 2025-12-17.
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.
20.5%
significant & substantial
6.0%
high negligence or reckless
20.5%
reasonably likely or greater
34.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.6% low, 84.3% moderate, 6.0% 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.
19 citations taken to the federal commission · 23% of citations on record
  • Settled 12 · 63%
  • Stood as issued 6 · 32%
  • Vacated or withdrawn 1 · 5%
90%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 10 decided S&S contests · industry: 79%
59%
Penalty reduction in decided contests
$9K proposed, $3K 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 2014-10-29.
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 2011-461M Settlement Bulluck 2012 $7K → $2K
WEST 2015-0103 Default Lesnick 2015 $743 → $743
WEST 2012-451M Settlement Lesnick 2013 $343 → $200
WEST 2011-1176M Settlement Bulluck 2013 $108 → $108
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: 2026-08-06
0%
of limit-tested samples over the exposure limit
7
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Quartz, respirable, >1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-08-06 Respirable dust, <.1mg 0 Laborer, Bullgang
2020-01-30 Respirable dust, <.1mg 0 Laborer, Bullgang
2020-01-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-06-13 Quartz, respirable, >1% Qtz 0.18 Scale Man
2018-06-13 Unlisted Particulate, respirable, <1% Qtz 0.18 Front-end Loader Operator
2014-08-20 Quartz, respirable, >1% Qtz 0.17 0.96 0.18 Front-end Loader Operator
2010-04-06 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. Vineyard Rock Products 2004 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 9
2024 6
2023 3
2022 3
2021 3
2020 2
2019 1
2018 1
2017 1
2016 1
2015 1
2014 1
2013 1
2012 2
2011 4
2010 2
2009 2
2008 2
2007 2
2006 2
2005 2
2004 2
Source: MSHA quarterly employment and production, updated weekly.

VINEYARD ROCK sits in San Benito 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.
San Benito County, California · Population 66,056
0.0%
Mining share of county employment
$108,289
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 2,988 0 0 0.0
2026 Q1 1,937 0 0 0.0
2025 Q4 4,314 13 3 3013.4
2025 Q3 4,915 0 0 0.0
2025 Q2 1,619 0 0 0.0
2025 Q1 1,444 0 0 0.0
2024 Q4 1,423 0 0 0.0
2024 Q3 1,299 3 0 2309.5
Show 79 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 1,004 0 0 0.0
2024 Q1 937 0 0 0.0
2023 Q4 770 0 0 0.0
2023 Q3 696 0 0 0.0
2023 Q2 715 0 0 0.0
2023 Q1 630 0 0 0.0
2022 Q4 702 0 0 0.0
2022 Q3 683 0 0 0.0
2022 Q2 664 0 0 0.0
2022 Q1 717 0 0 0.0
2021 Q4 637 0 0 0.0
2021 Q3 724 1 0 1381.2
2021 Q2 580 0 0 0.0
2021 Q1 505 0 0 0.0
2020 Q4 559 0 0 0.0
2020 Q3 508 0 0 0.0
2020 Q2 498 0 0 0.0
2020 Q1 454 0 0 0.0
2019 Q4 351 0 0 0.0
2019 Q3 260 0 0 0.0
2019 Q2 238 0 0 0.0
2019 Q1 239 2 0 8368.2
2018 Q4 254 0 0 0.0
2018 Q3 133 0 0 0.0
2018 Q2 156 2 0 12820.5
2018 Q1 98 0 0 0.0
2017 Q4 93 2 0 21505.4
2017 Q3 99 0 0 0.0
2017 Q2 112 0 0 0.0
2017 Q1 81 1 0 12345.7
2016 Q4 101 0 0 0.0
2016 Q3 122 1 0 8196.7
2016 Q2 102 0 0 0.0
2016 Q1 89 0 0 0.0
2015 Q4 77 0 0 0.0
2015 Q3 49 0 0 0.0
2015 Q2 94 4 0 42553.2
2015 Q1 113 0 0 0.0
2014 Q4 650 0 0 0.0
2014 Q3 78 6 2 76923.1
2014 Q2 89 0 0 0.0
2014 Q1 84 0 0 0.0
2013 Q4 128 0 0 0.0
2013 Q3 142 0 0 0.0
2013 Q2 100 0 0 0.0
2013 Q1 119 0 0 0.0
2012 Q4 83 0 0 0.0
2012 Q3 77 0 0 0.0
2012 Q2 931 0 0 0.0
2012 Q1 775 0 0 0.0
2011 Q4 846 2 0 2364.1
2011 Q3 762 0 0 0.0
2011 Q2 980 1 0 1020.4
2011 Q1 818 0 0 0.0
2010 Q4 888 9 7 10135.1
2010 Q3 795 0 0 0.0
2010 Q2 868 19 2 21889.4
2010 Q1 300 0 0 0.0
2009 Q4 189 0 0 0.0
2009 Q3 372 0 0 0.0
2009 Q2 321 0 0 0.0
2009 Q1 98 0 0 0.0
2008 Q4 195 1 0 5128.2
2008 Q3 360 0 0 0.0
2008 Q2 312 0 0 0.0
2008 Q1 110 6 0 54545.5
2007 Q4 201 0 0 0.0
2007 Q3 401 0 0 0.0
2007 Q2 389 0 0 0.0
2007 Q1 71 0 0 0.0
2006 Q4 121 4 1 33057.9
2006 Q3 392 0 0 0.0
2006 Q2 198 0 0 0.0
2006 Q1 96 0 0 0.0
2005 Q4 92 0 0 0.0
2005 Q3 258 0 0 0.0
2005 Q2 145 0 0 0.0
2005 Q1 46 0 0 0.0
2004 Q4 170 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.