Mining Incidents

Rio Lomas III: 33 MSHA citations Metal/Non-Metal

Controlled by McCormick Inc
Bullhead City, Mohave County, AZ  ·  Abandoned
MSHA Mine ID: 0201957

Rio Lomas III has $3K 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
33
citations
5
significant & substantial
$2,819
proposed penalties
$2,819
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
18
inspections on record
152
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: 152 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Rio Lomas III has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
33 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2009-03-31.
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.
15.2%
significant & substantial
0.0%
high negligence or reckless
15.2%
reasonably likely or greater
48.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 18.2% low, 81.8% moderate, 0.0% 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: 2006-05-03, 20 years ago
3
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg3
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Occupation
2006-05-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-05-03 Respirable dust, <.1mg 0 Bulldozer Operator
2006-05-03 Respirable dust, <.1mg 0 Crusher Oper/Worker
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. McCormick Construction Company 1979 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2020 0
2019 0
2010 0
2009 2
2008 6
2007 6
2006 6
2005 6
2004 7
2003 7
2002 9
2001 10
2000 9
Source: MSHA quarterly employment and production, updated weekly.

Rio Lomas III sits in Mohave County, Arizona, where the Census mining category is 0.7% 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.
Mohave County, Arizona · Population 217,420
0.7%
Mining share of county employment
$55,799
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
2020 Q2 0 0 0
2019 Q4 0 0 0
2010 Q4 0 0 0
2010 Q3 0 0 0
2010 Q2 0 0 0
2010 Q1 0 0 0
2009 Q4 0 0 0
2009 Q3 0 0 0
Show 38 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2009 Q2 0 0 0
2009 Q1 116 6 1 51724.1
2008 Q4 350 0 0 0.0
2008 Q3 532 0 0 0.0
2008 Q2 1,044 0 0 0.0
2008 Q1 899 4 0 4449.4
2007 Q4 1,320 0 0 0.0
2007 Q3 1,227 0 0 0.0
2007 Q2 946 0 0 0.0
2007 Q1 950 0 0 0.0
2006 Q4 1,370 0 0 0.0
2006 Q3 1,988 0 0 0.0
2006 Q2 2,098 1 0 476.6
2006 Q1 1,706 0 0 0.0
2005 Q4 1,829 0 0 0.0
2005 Q3 1,311 0 0 0.0
2005 Q2 1,328 0 0 0.0
2005 Q1 1,023 9 2 8797.7
2004 Q4 1,090 0 0 0.0
2004 Q3 1,639 0 0 0.0
2004 Q2 576 0 0 0.0
2004 Q1 971 0 0 0.0
2003 Q4 565 0 0 0.0
2003 Q3 132 0 0 0.0
2003 Q2 666 0 0 0.0
2003 Q1 1,100 0 0 0.0
2002 Q4 806 4 0 4962.8
2002 Q3 915 0 0 0.0
2002 Q2 940 4 1 4255.3
2002 Q1 1,207 0 0 0.0
2001 Q4 573 0 0 0.0
2001 Q3 333 0 0 0.0
2001 Q2 1,236 0 0 0.0
2001 Q1 1,833 0 0 0.0
2000 Q4 1,570 2 0 1273.9
2000 Q3 1,548 0 0 0.0
2000 Q2 949 3 1 3161.2
2000 Q1 1,193 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.