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7/11 Materials Inc-Robie Ranch: 1 recorded fatality Metal/Non-Metal

7/11 Materials Inc · Surface
Controlled by Reed Family Companies
valley springs, Calaveras County, CA  ·  Abandoned
MSHA Mine ID: 0404243

7/11 Materials Inc-Robie Ranch has $6K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
1
Total incidents
2
Years on record
1983–1991
Latest incident
Apr 1991
Compliance record
MSHA citations since 2005
29
citations
5
significant & substantial
$5,989
proposed penalties
$5,989
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See 7/11 Materials Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2005
14
inspections on record
190
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: 190 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

7/11 Materials Inc-Robie Ranch has $6K 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.
$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$0
outstanding
29 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2012-06-04.
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.
17.2%
significant & substantial
6.9%
high negligence or reckless
17.2%
reasonably likely or greater
41.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 6.9% low, 86.2% moderate, 6.9% 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: 2009-02-04, 17 years ago
0%
of limit-tested samples over the exposure limit
6
samples
3
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz3
  • Respirable dust, <.1mg3
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Occupation
2009-02-04 Respirable dust, <.1mg 0 Laborer, Bullgang
2009-02-04 Respirable dust, <.1mg 0 Crusher Oper/Worker
2009-02-04 Quartz, respirable, >1% Qtz 0.14 0.67 0.21 Front-end Loader Operator
2007-03-13 Quartz, respirable, >1% Qtz 0.2 0.72 0.28 Truck Driver
2007-03-13 Respirable dust, <.1mg 0 Crusher Oper/Worker
2007-03-13 Quartz, respirable, >1% Qtz 0.18 1.5 0.12 Backhoe 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. George Reed Inc 1978 to 1983
  2. Teichert Aggregates 1983 to 2005
  3. 7/11 Materials Inc 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2015 0
2014 0
2013 1
2012 3
2011 1
2010 2
2009 2
2008 6
2007 6
2006 6
2005 6
Source: MSHA quarterly employment and production, updated weekly.

7/11 Materials Inc-Robie Ranch sits in Calaveras 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.
Calaveras County, California · Population 45,995
0.3%
Mining share of county employment
$79,877
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 Q2 0 0 0
2015 Q1 0 0 0
2014 Q4 0 0 0
2014 Q3 0 0 0
2014 Q2 0 0 0
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 130 0 0 0.0
Show 31 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2013 Q2 130 0 0 0.0
2013 Q1 251 0 0 0.0
2012 Q4 252 0 0 0.0
2012 Q3 557 0 0 0.0
2012 Q2 642 3 0 4672.9
2012 Q1 125 0 0 0.0
2011 Q4 40 0 0 0.0
2011 Q3 66 0 0 0.0
2011 Q2 79 0 0 0.0
2011 Q1 9 0 0 0.0
2010 Q4 520 0 0 0.0
2010 Q3 1,209 2 0 1654.3
2010 Q2 429 0 0 0.0
2010 Q1 98 0 0 0.0
2009 Q4 560 0 0 0.0
2009 Q3 754 1 0 1326.3
2009 Q2 516 0 0 0.0
2009 Q1 957 3 0 3134.8
2008 Q4 2,432 0 0 0.0
2008 Q3 5,598 0 0 0.0
2008 Q2 2,319 4 1 1724.9
2008 Q1 1,324 4 1 3021.1
2007 Q4 2,608 0 0 0.0
2007 Q3 2,562 4 2 1561.3
2007 Q2 2,697 0 0 0.0
2007 Q1 3,130 2 0 639.0
2006 Q4 2,904 0 0 0.0
2006 Q3 3,391 0 0 0.0
2006 Q2 2,369 0 0 0.0
2006 Q1 2,385 0 0 0.0
2005 Q4 772 4 1 5181.3

Fatalities at this mine

1 recorded
December 6, 1983 CA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer Fatality · FALLING/SLIDING/ROLLING MATERIALS
George Reed Inc · Struck by falling object

FAILING TO BLOCK OR OTHERWISE SECURE BOOM OF A TRUCK CRANE BEFORE ATTEMPTING TO INSTALL A S ECTION OF BOOM

Reportable incidents

1 on file (excluding fatalities above)

1991 · 1 incident

April 16, 1991 CA · Metal/Non-Metal loader head operator, roscoe operator POWERED HAULAGE
Teichert Aggregates · Caught in, under or between a moving and a stationary object

WHILE ASSISTING PLANT OPERATOR TO REMOVE BOULDER IN FEEDER DOOR THE CONTROL OP. STARTED THE FEED BELT WITHOUT RECIEVING INSTRUCTION TO DO SO FROM THE PLANT OP IN DOING SO THE INJURY WAS CAUSE WHEN THE BOULDER HIT THE FEEDER DOOR AND THE INJURED PERSON RIGHT HAND WAS CAUGHT BY THE DOOR WEIGHT AND THE FEEDER WALL CAUSING THE INJURY.