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: 132 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
River Quarry has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
14 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2004-11-08.
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: 2004-03-17, 22 years ago
0%
of limit-tested samples over the exposure limit
5
samples
4
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz4
Respirable dust, <.1mg1
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2004-03-17
Quartz, respirable, >1% Qtz
0.67
1.24
0.54
Truck Driver
2004-03-17
Quartz, respirable, >1% Qtz
0.64
2.57
0.25
Front-end Loader Operator
2004-03-17
Quartz, respirable, >1% Qtz
0.18
0.23
0.78
Crusher Oper/Worker
2004-03-17
Quartz, respirable, >1% Qtz
0.54
2.48
0.22
Truck Driver
2004-03-17
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.
River Quarry recorded 8.65 reportable injury cases per 100 full-time workers in 2004.
Injury rate, 2004
ⓘ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.
8.65
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 3.73 and the all-US-mining average was 4.33 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 4.43 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
2005
7
2004
11
2003
9
2002
9
2001
13
2000
14
Source: MSHA quarterly employment and production, updated weekly.
River Quarry sits in Miller County, Missouri, where the Census mining category is 0.0% 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.
Miller County, Missouri · Population 25,081
0.0%
Mining share of county employment
$55,172
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
2005 Q2
1,180
0
0
0.0
2005 Q1
3,288
0
0
0.0
2004 Q4
5,255
1
0
190.3
2004 Q3
6,707
0
0
0.0
2004 Q2
6,421
0
0
0.0
2004 Q1
4,735
0
0
0.0
2003 Q4
4,275
2
0
467.8
2003 Q3
5,443
0
0
0.0
Show 14 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2003 Q2
4,167
2
0
480.0
2003 Q1
2,401
0
0
0.0
2002 Q4
4,466
0
0
0.0
2002 Q3
5,045
0
0
0.0
2002 Q2
4,627
3
1
648.4
2002 Q1
3,009
0
0
0.0
2001 Q4
4,272
0
0
0.0
2001 Q3
5,395
1
1
185.4
2001 Q2
1,877
0
0
0.0
2001 Q1
4,999
0
0
0.0
2000 Q4
3,299
0
0
0.0
2000 Q3
4,880
5
0
1024.6
2000 Q2
6,399
0
0
0.0
2000 Q1
4,557
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
9 on file
2004 · 1 incident
April 6, 2004MO · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
EE DEVELOPED LUMBAR INFLAMMATION WHILE OPERATING HAUL TRUCK. EE IS ON MODIFIED DUTY THAT DOES NOT REQUIRE ANY SITTING FOR PERIODS OF TIME. WHEN BACK TO FULL DUTY WE WILL ROTATE EE INTO A PIECE OF EQUIPMENT THAT IS LESS STRENUOUS ON HIM.
EE WAS HELPING A MECHANIC CHANGE A LEAF SPRING ON A WATER TRUCK THE TRUCK BED HAD 6"X6" IN TIMES 3 HIGH UNDER IT FOR SUPPORT THEY DECIDED TO RAISE THE TRUCK HIGHER WITH A HYDRAULIC JACK. BY D OING SO IT RELEIVED THE TENSION ON THE TIMBERS DURING THIS PROCESS THE TIRES TURNED MAKING THE TIMBERS FALL OVER HITTING THE EE'S HAND
1996 · 2 incidents
November 12, 1996MO · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techFIRE
CLOTHING CAME IN CONTACT WITH A PROPANE HEATER. CLOTHING CAUGHT ON FIRE, BURNING THE BACK OF BOTH LEGS AND THREE FINGERS ON THE LEFT HAND.
June 12, 1996MO · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSTEPPING OR KNEELING ON OBJECT
MAN WAS UCTTING STEEL WITH CUTTING TOURCH RUSTY SPOT IN METAL CAUSED SLAG TO POT BACK INTO FACE. SLAG GOT IN BEHIND GLASSES GETTING INTO LEFT EYE CAUSING SOME DAMAGE TO OUTSIDE OF EYE AND LIGH T DAMAGE TO RETINA OF EYE.
EMPLOYEE STATED3THAT HE WAS CLEANING OUT PROJECT TRAILER AND BURNING TRASH IN BARREL. WHILE SWEEPING OUT TRAILER, SOMETHING IN THE TRASH BARREL EXPLODED AND SENT A PIECE OF DEBRIS FLYING INTO TRAILER STRIKI3G HIM IN THE RIGHT EYE.