Mining Incidents

USA Mobile Concrete Pit: 105 MSHA citations Metal/Non-Metal

USA Mobile Concrete · Surface
Controlled by Cervando Gonzalez
BOULDER CITY, Clark County, NV  ·  Abandoned
MSHA Mine ID: 2602595

USA Mobile Concrete Pit has $25K in proposed MSHA penalties and $11K 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 2006
105
citations
43
significant & substantial
$25,182
proposed penalties
$14,518
paid to date
58% of proposed penalties paid to date, a $10,664 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
24
inspections on record
263
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: 263 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

USA Mobile Concrete Pit has $25K in proposed MSHA penalties and $11K 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.
$25K
proposed penalties
$25K
current assessed
$15K
paid to date
$11K
outstanding
101 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2013-08-28.
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.
42.6%
significant & substantial
28.7%
high negligence or reckless
42.6%
reasonably likely or greater
51.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 1.0% low, 70.3% moderate, 28.7% 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: 2009-12-22, 16 years ago
1
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg1
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Occupation
2009-12-22 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. Tonto Supply Inc. 2006 to 2008
  2. USA Mobile Concrete 2008 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2013 0
2012 2
2011 2
2010 2
2009 2
2008 2
2007 2
2006 2
Source: MSHA quarterly employment and production, updated weekly.

USA Mobile Concrete Pit sits in Clark County, Nevada, where the Census mining category is 0.2% 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.
Clark County, Nevada · Population 2,293,764
0.2%
Mining share of county employment
$73,845
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
2013 Q2 0 0 0
2013 Q1 0 0 0
2012 Q4 122 0 0 0.0
2012 Q3 76 0 0 0.0
2012 Q2 81 4 1 49382.7
2012 Q1 84 0 0 0.0
2011 Q4 56 0 0 0.0
2011 Q3 52 0 0 0.0
Show 21 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2011 Q2 87 0 0 0.0
2011 Q1 138 0 0 0.0
2010 Q4 128 7 3 54687.5
2010 Q3 141 0 0 0.0
2010 Q2 265 0 0 0.0
2010 Q1 347 0 0 0.0
2009 Q4 265 12 9 45283.0
2009 Q3 441 0 0 0.0
2009 Q2 504 0 0 0.0
2009 Q1 410 2 0 4878.0
2008 Q4 90 13 6 144444.4
2008 Q3 90 30 20 333333.3
2008 Q2 0 1 0
2008 Q1 120 1 0 8333.3
2007 Q4 480 0 0 0.0
2007 Q3 720 0 0 0.0
2007 Q2 720 0 0 0.0
2007 Q1 825 10 1 12121.2
2006 Q4 720 2 0 2777.8
2006 Q3 540 0 0 0.0
2006 Q2 360 22 3 61111.1

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.