Mining Incidents

Big River Rock Co: 69 MSHA citations Metal/Non-Metal

Big River Rock Co · Surface
FORT BRAGG, Mendocino County, CA  ·  Abandoned
MSHA Mine ID: 0402775

Big River Rock Co has $16K 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
2
Years on record
1994–2000
Latest incident
Jun 2000
Compliance record
MSHA citations since 2002
69
citations
18
significant & substantial
$16,033
proposed penalties
$13,033
paid to date
81% of proposed penalties paid to date, a $3,000 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
27
inspections on record
332
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: 332 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Big River Rock Co has $16K 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.
$16K
proposed penalties
$13K
current assessed
$13K
paid to date
$0
outstanding
67 assessments are final orders; 2 contested dockets.
Of $6K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2018-06-13.
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.
26.9%
significant & substantial
14.9%
high negligence or reckless
26.9%
reasonably likely or greater
46.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 14.9% low, 70.1% moderate, 14.9% 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.
13 citations taken to the federal commission · 19% of citations on record
  • Settled 6 · 46%
  • Vacated or withdrawn 7 · 54%
0%
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 6 decided S&S contests · industry: 79%
72%
Penalty reduction in decided contests
$6K proposed, $2K 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 2018-10-30.
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 2011-481M Settlement Manning 2011 $4K → $1K
WEST 2019-0044 Withdrawal Miller 2019 $2K → $604
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: 2018-06-13, 8 years ago
0%
of limit-tested samples over the exposure limit
3
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2018-06-13 Quartz, respirable, >1% Qtz 0.32 0.93 0.34 Front-end Loader Operator
2011-07-20 Quartz, respirable, >1% Qtz 0.35 0.54 0.65 Supervisor, Co. Official
2011-07-20 Unlisted Particulate, respirable, <1% Qtz 0.27 Mechanic
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. Watkins Sand & Gravel 1950 to 2003
  2. Big River Rock Co 2003 to 2009
  3. Big River Rock Co 2009 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2018 0
2017 1
2016 1
2015 1
2014 1
2013 2
2012 2
2011 1
2010 1
2006 1
2005 3
2004 3
2003 3
2002 2
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Big River Rock Co sits in Mendocino County, California, where the Census mining category is 0.3% 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.
Mendocino County, California · Population 90,709
0.3%
Mining share of county employment
$64,688
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
2018 Q2 0 18 2
2018 Q1 0 0 0
2017 Q4 0 0 0
2017 Q3 80 0 0 0.0
2017 Q2 40 0 0 0.0
2017 Q1 0 0 0
2016 Q4 0 0 0
2016 Q3 80 4 0 50000.0
Show 52 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2016 Q2 80 0 0 0.0
2016 Q1 0 0 0
2015 Q4 0 0 0
2015 Q3 80 0 0 0.0
2015 Q2 80 1 0 12500.0
2015 Q1 0 0 0
2014 Q4 0 0 0
2014 Q3 80 0 0 0.0
2014 Q2 60 0 0 0.0
2014 Q1 0 0 0
2013 Q4 80 0 0 0.0
2013 Q3 80 0 0 0.0
2013 Q2 50 0 0 0.0
2013 Q1 0 0 0
2012 Q4 80 0 0 0.0
2012 Q3 100 0 0 0.0
2012 Q2 50 0 0 0.0
2012 Q1 0 0 0
2011 Q4 120 0 0 0.0
2011 Q3 140 3 0 21428.6
2011 Q2 0 0 0
2011 Q1 0 0 0
2010 Q4 0 0 0
2010 Q3 130 28 11 215384.6
2010 Q2 130 0 0 0.0
2010 Q1 0 0 0
2006 Q3 0 0 0
2006 Q2 130 0 0 0.0
2006 Q1 0 0 0
2005 Q4 160 0 0 0.0
2005 Q3 260 0 0 0.0
2005 Q2 140 0 0 0.0
2005 Q1 160 3 1 18750.0
2004 Q4 160 0 0 0.0
2004 Q3 240 5 2 20833.3
2004 Q2 140 0 0 0.0
2004 Q1 160 3 0 18750.0
2003 Q4 160 0 0 0.0
2003 Q2 503 0 0 0.0
2003 Q1 624 0 0 0.0
2002 Q4 326 2 2 6135.0
2002 Q3 390 0 0 0.0
2002 Q2 502 0 0 0.0
2002 Q1 483 0 0 0.0
2001 Q4 374 0 0 0.0
2001 Q3 512 0 0 0.0
2001 Q2 393 0 0 0.0
2001 Q1 412 0 0 0.0
2000 Q4 567 0 0 0.0
2000 Q3 531 0 0 0.0
2000 Q2 460 0 0 0.0
2000 Q1 585 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2000 · 1 incident

June 2, 2000 CA · Metal/Non-Metal truck driver HANDLING OF MATERIALS
Watkins Sand & Gravel · Struck by... (Not Elsewhere Classified)

CHECKING HYDRAULIC HOSE OF CRUSHER FOR LEAKS. SOME PINHOLE SPRAY CUT THROUGH LEATHER GLOVE ANDCUT FINGER, INJECTING SMALL AMOUNT OF FLUID INTOFINGER.

1994 · 1 incident

March 11, 1994 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Watkins Sand & Gravel · Struck by flying object

EMPLOYEE WAS KNOCKING OFF TORCH SLAG ON A PIECE OF METAL WITH HAMMER AND A PIECE OF SLAG FELL INTO EYE.