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: 302 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Rockdale Quarry has $6K in proposed MSHA penalties and $165 outstanding across 5 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.
$6K
proposed penalties
$6K
current assessed
$6K
paid to date
$165
outstanding
69 assessments are final orders; 5 contested dockets.
Of $2K in penalties contested before the Commission, $1K was upheld in final decisions.
As of the most recent assessment on 2002-11-06.
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.
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: 2002-07-23, 24 years ago
20%
of limit-tested samples over the exposure limit
5
samples
5
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz51 over
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2001-08-14
Quartz, respirable, >1% Qtz
1.9
1.1
1.73
Crusher Oper/Worker
2002-07-23
Quartz, respirable, >1% Qtz
0.42
1.75
0.24
Crusher Oper/Worker
2002-07-23
Quartz, respirable, >1% Qtz
1.03
2.12
0.49
Crusher Oper/Worker
2002-07-23
Quartz, respirable, >1% Qtz
1
1.29
0.78
Laborer, Bullgang
2001-08-14
Quartz, respirable, >1% Qtz
0.48
0.58
0.83
Laborer, Bullgang
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.
Rockdale Quarry recorded 5.08 reportable injury cases per 100 full-time workers in 2002.
Injury rate, 2002
ⓘ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.
5.08
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 4.17 and the all-US-mining average was 5.05 cases per 100 workers.
In Illinois, metal and nonmetal mining averaged 3.98 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
2002 *
5.08
0.00
0.000
2001 *
7.63
0.00
0.000
2000 *
2.89
2.89
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
2003
16
2002
35
2001
34
2000
29
Source: MSHA quarterly employment and production, updated weekly.
Rockdale Quarry sits in Will County, Illinois, where the Census mining category is 0.1% 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.
Will County, Illinois · Population 698,450
0.1%
Mining share of county employment
$107,799
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
2003 Q1
7,034
0
0
0.0
2002 Q4
16,651
10
0
600.6
2002 Q3
23,267
18
3
773.6
2002 Q2
24,126
0
0
0.0
2002 Q1
14,752
3
1
203.4
2001 Q4
19,627
1
1
51.0
2001 Q3
24,052
14
2
582.1
2001 Q2
21,917
0
0
0.0
Show 5 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2001 Q1
13,052
0
0
0.0
2000 Q4
15,348
3
1
195.5
2000 Q3
20,588
0
0
0.0
2000 Q2
21,488
15
8
698.1
2000 Q1
11,804
0
0
0.0
Fatalities at this mine
1 recorded
May 13, 1988IL · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorFatality · MACHINERY
EMPLOYEE HAS BEEN OFF WORK SINCE 9-11-96. ON 9-19-96 WE WERE NOTIFIED THAT HE WAS OFF WORK WITH A WORK-RELATED INJURY. HE HAS A BULGING DISC IN HIS NECK. IT IS NOT KNOWN HOW THIS INJURY OCCURR ED.
August 10, 1996IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
DRIVER WAS ENTERING THE CAB OF THE TRUCK WHEN HIS FOOT SLIPPED OFF THE CAT-WALK CAUSING HIKM TO FALL TO THE GROUND LANDING ON HIS TWO FEET THEN FALLING BACKWARD TO THE GROUND BUMPING THE REAR OF HIS HEAD.