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: 343 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Mobile Crusher 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
$9K
current assessed
$9K
paid to date
$0
outstanding
44 assessments are final orders; 2 contested dockets.
Of $10K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2019-09-19.
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.
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.
1citations taken to the federal commission · 2% of citations on record
Settled
1 · 100%
0%
Penalty reduction in decided contests
$375 proposed, $375 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2007-06-22.
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.
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: 2005-11-17, 20 years ago
0%
of limit-tested samples over the exposure limit
10
samples
4
limit-tested
Most sampled contaminants
Unlisted Particulate, respirable, <1% Qtz5
Nuisance dust, respirable, <1% Qtz4
Respirable dust, <.1mg1
Show the individual readings (10)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2005-11-17
Nuisance dust, respirable, <1% Qtz
0.42
10
0.04
Scraper Operator
2005-11-17
Nuisance dust, respirable, <1% Qtz
0.21
10
0.02
Crusher Oper/Worker
2005-11-17
Nuisance dust, respirable, <1% Qtz
0.2
10
0.02
Complete Load-Haul-Dump
2005-11-17
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-11-17
Nuisance dust, respirable, <1% Qtz
0.29
10
0.03
Utility Man
2001-09-20
Unlisted Particulate, respirable, <1% Qtz
0.18
Utility Man
2001-09-20
Unlisted Particulate, respirable, <1% Qtz
0.18
Front-end Loader Operator
2001-09-20
Unlisted Particulate, respirable, <1% Qtz
0.23
Crusher Oper/Worker
2001-09-20
Unlisted Particulate, respirable, <1% Qtz
0.22
Scraper Operator
2001-09-20
Unlisted Particulate, respirable, <1% Qtz
0.16
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.
Mobile Crusher recorded 8.05 reportable injury cases per 100 full-time workers in 2007.
Injury rate, 2007
ⓘThis rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
8.05
total case rate
8.05
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 3.30 and the all-US-mining average was 3.77 cases per 100 workers.
In Texas, metal and nonmetal mining averaged 2.75 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year
total case rate
days-away
fatal
2007 *
8.05
8.05
0.000
2006 *
0.00
0.00
0.000
2004 *
0.00
0.00
0.000
2003 *
0.00
0.00
0.000
2002 *
0.00
0.00
0.000
2001 *
5.61
5.61
0.000
2000 *
0.00
0.00
0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2020
4
2019
6
2013
6
2012
8
2008
12
2007
12
2006
44
2005
12
2004
11
2003
13
2002
18
2001
16
2000
17
Source: MSHA quarterly employment and production, updated weekly.
Mobile Crusher sits in Medina County, Texas, where the Census mining category is 3.1% 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.
Medina County, Texas · Population 52,419
3.1%
Mining share of county employment
$73,462
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 Q1
812
0
0
0.0
2019 Q4
1,119
0
0
0.0
2019 Q3
1,106
1
0
904.2
2019 Q2
2,976
0
0
0.0
2013 Q4
292
0
0
0.0
2013 Q3
2,158
0
0
0.0
2013 Q2
2,682
0
0
0.0
2013 Q1
3,524
0
0
0.0
Show 36 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2012 Q4
2,165
6
3
2771.4
2012 Q3
2,013
0
0
0.0
2008 Q3
6,570
0
0
0.0
2008 Q2
6,807
0
0
0.0
2008 Q1
6,318
2
1
316.6
2007 Q4
7,036
0
0
0.0
2007 Q3
6,532
1
1
153.1
2007 Q2
6,778
0
0
0.0
2007 Q1
4,510
5
2
1108.6
2006 Q4
5,618
0
0
0.0
2006 Q3
10,110
0
0
0.0
2006 Q2
8,693
0
0
0.0
2006 Q1
12,319
0
0
0.0
2005 Q4
5,786
1
0
172.8
2005 Q2
6,184
2
1
323.4
2005 Q1
6,442
0
0
0.0
2004 Q4
3,628
0
0
0.0
2004 Q3
7,198
0
0
0.0
2004 Q2
7,916
4
0
505.3
2004 Q1
3,891
0
0
0.0
2003 Q4
3,042
1
1
328.7
2003 Q3
7,254
0
0
0.0
2003 Q2
8,870
0
0
0.0
2003 Q1
7,961
1
1
125.6
2002 Q4
6,668
0
0
0.0
2002 Q3
9,393
4
2
425.8
2002 Q2
10,865
0
0
0.0
2002 Q1
10,405
3
1
288.3
2001 Q4
8,622
0
0
0.0
2001 Q3
8,939
3
1
335.6
2001 Q2
9,390
6
2
639.0
2001 Q1
8,699
4
3
459.8
2000 Q4
7,000
0
0
0.0
2000 Q3
10,057
0
0
0.0
2000 Q2
9,925
0
0
0.0
2000 Q1
12,216
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
9 on file
2007 · 1 incident
October 11, 2007TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techPOWERED HAULAGE
Employee was repairing/troubleshooting a water truck. He was positioned around the engine compartment. A coworker started the engine and two of his right-hand fingers were hit by the fan blade.
2001 · 1 incident
January 9, 2001TX · Metal/Non-Metalbackhoe operator, trackhoe operator, crane operatorMACHINERY
OPER DUMP TRUCK BY HAULING DUMPING CRUSHED STONE IN STOCKPILE PLACED TRUCK IN FORWARD JUMPED OUT BEFORE FALLING OVER BLUFF
April 23, 1990TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
EMPL WAS WORKING WITH STEEL CABLE WHEN BURR PUNCTURED SKIN.
1989 · 1 incident
September 12, 1989TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
JUMPED OFF LOADER STRUCK PC OF BLOCKING CAUSING HIS ANKLE TO TURN.
1988 · 1 incident
July 18, 1988TX · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON