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: 130 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Portable #1 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
28 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2006-01-31.
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.
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: 2005-09-28, 20 years ago
0%
of limit-tested samples over the exposure limit
5
samples
5
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz4
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2005-09-28
Nuisance dust, respirable, <1% Qtz
0.17
10
0.02
Truck Driver
2005-09-28
Quartz, respirable, >1% Qtz
0.19
1.72
0.11
Front-end Loader Operator
2005-09-28
Quartz, respirable, >1% Qtz
0.37
2.51
0.15
Front-end Loader Operator
2005-09-28
Quartz, respirable, >1% Qtz
0.83
3.15
0.26
Crusher Oper/Worker
2005-09-28
Quartz, respirable, >1% Qtz
0.27
2.38
0.11
Drill Operator, Rotary
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.
Portable #1 recorded 7.81 reportable injury cases per 100 full-time workers in 2005.
Injury rate, 2005
ⓘ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.
7.81
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 3.76 and the all-US-mining average was 4.21 cases per 100 workers.
In Oklahoma, metal and nonmetal mining averaged 4.58 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.
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
2006
10
2005
13
2004
5
2003
2
Source: MSHA quarterly employment and production, updated weekly.
Portable #1 sits in Pawnee County, Oklahoma, where the Census mining category is 2.9% 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.
Pawnee County, Oklahoma · Population 15,689
2.9%
Mining share of county employment
$57,551
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
2006 Q4
0
0
0
2006 Q3
4,537
0
0
0.0
2006 Q2
6,416
0
0
0.0
2006 Q1
6,720
2
0
297.6
2005 Q4
7,362
0
0
0.0
2005 Q3
6,588
5
1
759.0
2005 Q2
6,665
11
1
1650.4
2005 Q1
4,995
0
0
0.0
Show 5 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2004 Q4
3,008
0
0
0.0
2004 Q3
3,127
9
5
2878.2
2004 Q2
3,172
0
0
0.0
2004 Q1
1,219
0
0
0.0
2003 Q4
1,215
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
2 on file
2006 · 1 incident
January 2, 2006OK · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS