Interstate Aggregates Inc has $52K in proposed MSHA penalties and $13K outstanding across 3 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
21
Years on record
1988–2007
Latest incident
Dec 2007
Compliance record
MSHA citations since 2001
92
citations
32
significant & substantial
$52,378
proposed penalties
$10,863
paid to date
21% of proposed penalties paid to date, a $41,515 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
29
inspections on record
533
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: 533 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Interstate Aggregates Inc has $52K in proposed MSHA penalties and $13K outstanding across 3 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.
$52K
proposed penalties
$24K
current assessed
$11K
paid to date
$13K
outstanding
91 assessments are final orders; 3 contested dockets.
Of $37K in penalties contested before the Commission, $9K was upheld in final decisions.
As of the most recent assessment on 2011-10-04.
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.
5citations taken to the federal commission · 5% of citations on record
Settled
2 · 40%
Stood as issued
3 · 60%
100%
S&S designation survived the contest
ⓘCounts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 5 decided S&S contests · industry: 79%
76%
Penalty reduction in decided contests
$37K proposed, $9K 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 2011-08-05.
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: 2010-11-17, 15 years ago
0%
of limit-tested samples over the exposure limit
5
samples
2
limit-tested
Most sampled contaminants
Respirable dust, <.1mg3
Quartz, respirable, >1% Qtz2
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2010-11-17
Respirable dust, <.1mg
0
Front-end Loader Operator
2002-06-11
Respirable dust, <.1mg
0
Crusher Oper/Worker
2002-06-11
Quartz, respirable, >1% Qtz
0.16
0.62
0.26
Truck Driver
2002-06-11
Respirable dust, <.1mg
0
Truck Driver
2002-06-11
Quartz, respirable, >1% Qtz
0.23
0.57
0.40
Truck Driver
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.
Interstate Aggregates Inc recorded 8.61 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.
8.61
total case rate
8.61
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 Michigan, metal and nonmetal mining averaged 3.04 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 *
8.61
8.61
0.000
2006 *
18.56
18.56
0.000
2005 *
0.00
0.00
0.000
2004 *
14.60
7.30
0.000
2003 *
13.84
0.00
0.000
2002 *
6.24
6.24
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
2012
2
2011
3
2010
3
2009
1
2008
6
2007
12
2006
12
2005
15
2004
15
2003
16
2002
17
2001
16
2000
19
Source: MSHA quarterly employment and production, updated weekly.
Interstate Aggregates Inc sits in Hillsdale County, Michigan, 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.
Hillsdale County, Michigan · Population 45,658
0.0%
Mining share of county employment
$60,869
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
No injuries - garage and shop fire. Waste oil burner is the cause according to the fire marshall. Insurance company will take burner and inpspect it. Total damage to the garage structure 24'x 54' and 24' x 65'. All equipment and supplies are lost plus lots of tools. Shop has minor damage mostly to the roof.
September 19, 2007MI · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverEXPLODING VESSELS UNDER PRESSURE
EE was extracting a rock that was between the right rear tires. He thought he had it out and started to pick up his tools when the inside tire blew knocking him to the ground. His hard hat went about 50'. EE got up and moved about 20 feet to the North where co-worker & Plant Manager found him.
2006 · 2 incidents
December 11, 2006MI · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanELECTRICAL
Electrical burn. Flash fire burns to the miners face and neck. Power was off, he opened the box to check the fuses and when he went to touch the fuse, it blew up causing a flash fire.
August 1, 2006MI · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerOTHER
INJURED WAS STOPPED OVER HOPPER. HE WAS SITTING IWTH THE DOOR OPEN ON AN ANGLE BOOKING BACK AT HOPPER. THE TIRE BLOW OUT, EXPLODING SAND AND GRAVEL INTO HIS EYES AND FACE.