Mining Incidents

MARIS PIT: 21 MSHA citations Metal/Non-Metal

Del Norte County Road Division · Surface
Controlled by Del Norte County-Ca
Del Norte, Del Norte County, CA  ·  Abandoned
MSHA Mine ID: 0400088

MARIS 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2000
21
citations
3
significant & substantial
$1,914
proposed penalties
$1,914
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
24
inspections on record
243
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: 243 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

MARIS 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
21 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2015-05-19.
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.
14.3%
significant & substantial
4.8%
high negligence or reckless
14.3%
reasonably likely or greater
47.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 28.6% low, 66.7% moderate, 4.8% 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: 2007-06-27, 19 years ago
0%
of limit-tested samples over the exposure limit
2
samples
2
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2007-06-27 Quartz, respirable, >1% Qtz 0.43 0.71 0.61 Crusher Oper/Worker
2007-06-27 Quartz, respirable, >1% Qtz 0.37 0.72 0.51 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. Del Norte County Road Division 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2015 0
2014 4
2013 3
2012 5
2011 10
2010 8
2009 6
2008 2
2007 5
2006 1
2005 6
2004 6
2003 5
2002 3
2001 2
2000 4
Source: MSHA quarterly employment and production, updated weekly.

MARIS PIT sits in Del Norte County, California, where the Census mining category is 0.1% 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.
Del Norte County, California · Population 27,293
0.1%
Mining share of county employment
$66,780
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
2015 Q1 0 0 0
2014 Q4 0 0 0
2014 Q3 0 0 0
2014 Q2 0 1 0
2014 Q1 80 0 0 0.0
2013 Q4 0 0 0
2013 Q3 0 0 0
2013 Q2 34 1 0 29411.8
Show 51 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2013 Q1 17 0 0 0.0
2012 Q4 148 0 0 0.0
2012 Q3 11 0 0 0.0
2012 Q2 89 0 0 0.0
2012 Q1 62 0 0 0.0
2011 Q4 329 0 0 0.0
2011 Q3 4 1 0 250000.0
2011 Q2 0 0 0
2011 Q1 45 0 0 0.0
2010 Q4 5 0 0 0.0
2010 Q3 11 0 0 0.0
2010 Q2 158 0 0 0.0
2010 Q1 133 4 2 30075.2
2009 Q4 8 0 0 0.0
2009 Q3 4 1 0 250000.0
2009 Q2 0 0 0
2009 Q1 117 0 0 0.0
2008 Q4 14 0 0 0.0
2008 Q3 0 0 0
2008 Q2 0 0 0
2008 Q1 30 0 0 0.0
2007 Q4 0 0 0
2007 Q3 456 0 0 0.0
2007 Q2 58 7 1 120689.7
2007 Q1 0 0 0
2006 Q4 0 0 0
2006 Q3 0 0 0
2006 Q1 20 0 0 0.0
2005 Q4 47 0 0 0.0
2005 Q3 248 0 0 0.0
2005 Q2 179 0 0 0.0
2005 Q1 7 1 0 142857.1
2004 Q4 63 0 0 0.0
2004 Q3 385 0 0 0.0
2004 Q2 152 0 0 0.0
2004 Q1 77 1 0 12987.0
2003 Q4 26 0 0 0.0
2003 Q3 8 1 0 125000.0
2003 Q2 84 0 0 0.0
2003 Q1 100 0 0 0.0
2002 Q4 10 0 0 0.0
2002 Q3 43 0 0 0.0
2002 Q2 16 0 0 0.0
2002 Q1 222 0 0 0.0
2001 Q4 5 0 0 0.0
2001 Q3 20 0 0 0.0
2001 Q1 85 0 0 0.0
2000 Q4 82 0 0 0.0
2000 Q3 297 0 0 0.0
2000 Q2 155 1 0 6451.6
2000 Q1 66 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.