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.
83 citations across 1,049 inspection hours.
Source: MSHA inspections data, updated weekly.
Manteno Quarry has $22K in proposed MSHA penalties and $0 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.
$22K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
83 assessments are final orders; 3 contested dockets.
Of $11K in penalties contested before the Commission, $5K was upheld in final decisions.
As of the most recent assessment on 2024-10-02.
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.
3citations taken to the federal commission · 4% of citations on record
Settled
3 · 100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 3 decided S&S contests · industry: 79%
57%
Penalty reduction in decided contests
$11K proposed, $5K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2012-03-21.
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: 2025-10-28
13%
of limit-tested samples over the exposure limit
29
samples
15
limit-tested
Most sampled contaminants
Nuisance dust, total, <1% Qtz72 over
Respirable dust, <.1mg10
Nuisance dust, respirable, <1% Qtz5
Quartz, respirable, >1% Qtz5
Show the individual readings (29)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2001-05-08
Nuisance dust, total, <1% Qtz
16.51
10
1.65
Cleanup Man
2001-01-18
Nuisance dust, total, <1% Qtz
19.52
10
1.95
Cleanup Man
2025-10-28
Respirable dust, <.1mg
0
Utility Man
2025-10-28
Quartz, respirable, >1% Qtz
0.32
Laborer, Bullgang
2025-03-26
Quartz, respirable, >1% Qtz
0.41
Utility Man
2025-03-26
Respirable dust, <.1mg
0
Crusher Oper/Worker
2019-04-11
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Truck Driver
2019-04-11
Unlisted Particulate, total, <1% Qtz
0.32
Front-end Loader Operator
2019-04-11
Unlisted Particulate, total, <1% Qtz
8.41
Utility Man
2018-09-25
Respirable dust, <.1mg
0
Truck Driver
2018-09-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2018-09-25
Respirable dust, <.1mg
0
Laborer, Bullgang
2015-04-07
Nuisance dust, total, <1% Qtz
0.6
10
0.06
Truck Driver
2015-04-07
Nuisance dust, total, <1% Qtz
0
10
0.00
Drill Oper., Jackleg/Stoper
2015-04-07
Quartz, respirable, >1% Qtz
0.23
1.62
0.14
Dry Screen Plant Operator
2015-04-07
Nuisance dust, total, <1% Qtz
0
10
0.00
Front-end Loader Operator
2010-05-26
Respirable dust, <.1mg
0
Truck Driver
2010-05-26
Quartz, respirable, >1% Qtz
0.49
2.87
0.17
Utility Man
2010-05-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2010-05-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2010-05-26
Respirable dust, <.1mg
0
Mechanic
2004-09-01
Respirable dust, <.1mg
0
Crusher Oper/Worker
2004-09-01
Nuisance dust, respirable, <1% Qtz
0.24
10
0.02
Laborer, Bullgang
2003-01-07
Nuisance dust, respirable, <1% Qtz
0.46
10
0.05
Crusher Oper/Worker
2002-04-23
Nuisance dust, respirable, <1% Qtz
0.2
10
0.02
Crusher Oper/Worker
2001-12-18
Nuisance dust, respirable, <1% Qtz
0.33
10
0.03
Utility Man
2001-01-18
Quartz, respirable, >1% Qtz
0.61
2.95
0.21
Crusher Oper/Worker
2001-01-18
Nuisance dust, total, <1% Qtz
5.64
10
0.56
Laborer, Bullgang
2001-01-18
Nuisance dust, total, <1% Qtz
0.77
10
0.08
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.
Manteno Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
Injury rate, 2025
ⓘ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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Illinois, metal and nonmetal mining averaged 1.41 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
2025 *
0.00
0.00
0.000
2024 *
0.00
0.00
0.000
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
0.00
0.00
0.000
2019 *
0.00
0.00
0.000
2018 *
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
2026
12
2025
13
2024
11
2023
11
2022
11
2021
12
2020
14
2019
13
2018
14
2017
12
2016
12
2015
11
2014
9
2013
11
2012
11
2011
13
2010
10
2009
9
2008
8
2007
12
2006
12
2005
10
2004
8
2003
10
2002
13
2001
12
2000
12
Source: MSHA quarterly employment and production, updated weekly.
Manteno Quarry sits in Kankakee County, Illinois, 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.
Kankakee County, Illinois · Population 106,833
0.0%
Mining share of county employment
$68,325
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
2026 Q2
8,943
0
0
0.0
2026 Q1
6,444
0
0
0.0
2025 Q4
7,411
0
0
0.0
2025 Q3
8,810
0
0
0.0
2025 Q2
8,450
0
0
0.0
2025 Q1
6,075
0
0
0.0
2024 Q4
7,162
6
0
837.8
2024 Q3
7,184
1
0
139.2
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
6,837
0
0
0.0
2024 Q1
5,764
0
0
0.0
2023 Q4
5,315
0
0
0.0
2023 Q3
6,061
0
0
0.0
2023 Q2
7,104
4
0
563.1
2023 Q1
6,371
0
0
0.0
2022 Q4
7,173
0
0
0.0
2022 Q3
7,413
0
0
0.0
2022 Q2
7,562
0
0
0.0
2022 Q1
6,100
1
0
163.9
2021 Q4
7,188
4
1
556.5
2021 Q3
6,923
0
0
0.0
2021 Q2
7,240
0
0
0.0
2021 Q1
3,918
1
0
255.2
2020 Q4
7,536
0
0
0.0
2020 Q3
8,867
0
0
0.0
2020 Q2
7,537
2
1
265.4
2020 Q1
5,823
0
0
0.0
2019 Q4
7,680
5
2
651.0
2019 Q3
8,376
0
0
0.0
2019 Q2
8,989
1
0
111.2
2019 Q1
5,306
1
1
188.5
2018 Q4
8,934
0
0
0.0
2018 Q3
8,425
0
0
0.0
2018 Q2
8,130
0
0
0.0
2018 Q1
5,644
2
0
354.4
2017 Q4
6,252
0
0
0.0
2017 Q3
7,376
0
0
0.0
2017 Q2
7,662
1
0
130.5
2017 Q1
6,510
1
0
153.6
2016 Q4
7,193
0
0
0.0
2016 Q3
8,715
0
0
0.0
2016 Q2
7,804
9
4
1153.3
2016 Q1
4,932
1
0
202.8
2015 Q4
5,270
0
0
0.0
2015 Q3
7,104
0
0
0.0
2015 Q2
7,790
0
0
0.0
2015 Q1
4,722
0
0
0.0
2014 Q4
5,510
0
0
0.0
2014 Q3
6,903
0
0
0.0
2014 Q2
6,603
0
0
0.0
2014 Q1
2,994
0
0
0.0
2013 Q4
5,607
4
0
713.4
2013 Q3
6,770
0
0
0.0
2013 Q2
4,908
1
0
203.7
2013 Q1
2,171
0
0
0.0
2012 Q4
5,431
0
0
0.0
2012 Q3
5,527
0
0
0.0
2012 Q2
5,464
1
1
183.0
2012 Q1
3,691
0
0
0.0
2011 Q4
6,145
3
2
488.2
2011 Q3
9,113
0
0
0.0
2011 Q2
8,125
3
0
369.2
2011 Q1
3,304
0
0
0.0
2010 Q4
4,407
0
0
0.0
2010 Q3
7,301
0
0
0.0
2010 Q2
6,906
2
0
289.6
2010 Q1
2,284
0
0
0.0
2009 Q4
6,446
0
0
0.0
2009 Q3
7,358
0
0
0.0
2009 Q2
7,080
0
0
0.0
2009 Q1
2,801
0
0
0.0
2008 Q4
5,516
0
0
0.0
2008 Q3
7,150
0
0
0.0
2008 Q2
5,538
1
0
180.6
2008 Q1
3,363
0
0
0.0
2007 Q4
7,759
0
0
0.0
2007 Q3
8,763
0
0
0.0
2007 Q2
8,718
0
0
0.0
2007 Q1
3,646
1
0
274.3
2006 Q4
6,240
0
0
0.0
2006 Q3
8,300
0
0
0.0
2006 Q2
9,237
3
0
324.8
2006 Q1
5,667
0
0
0.0
2005 Q4
7,636
1
0
131.0
2005 Q3
7,929
2
1
252.2
2005 Q2
6,694
0
0
0.0
2005 Q1
6,402
3
0
468.6
2004 Q4
6,499
0
0
0.0
2004 Q3
7,798
3
0
384.7
2004 Q2
6,936
0
0
0.0
2004 Q1
3,684
0
0
0.0
2003 Q4
6,309
0
0
0.0
2003 Q3
7,021
0
0
0.0
2003 Q2
6,588
0
0
0.0
2003 Q1
5,614
2
0
356.3
2002 Q4
5,623
0
0
0.0
2002 Q3
9,850
0
0
0.0
2002 Q2
10,338
2
0
193.5
2002 Q1
8,282
0
0
0.0
2001 Q4
7,745
2
0
258.2
2001 Q3
8,125
0
0
0.0
2001 Q2
8,522
0
0
0.0
2001 Q1
5,201
3
0
576.8
2000 Q4
6,428
0
0
0.0
2000 Q3
6,636
0
0
0.0
2000 Q2
8,822
0
0
0.0
2000 Q1
8,771
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
14 on file
2015 · 2 incidents
August 7, 2015IL · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON
An employee removing a nut off the tension rod on a jaw crusher was startled when the tension rod broke causing him to jerk his head backwards into the platform railing. The employee was not struck by any parts other than him hitting his head on the railing. He received 11 staples to close the laceration to his head.
March 4, 2015IL · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorPOWERED HAULAGE
An employee sustained a fractured rib on his right side after being contacted by the fork frame of a Tele-Handler fork lift while moving a pallet out of a connex container.
EE WAS STRUCK ON RIGHT THIGH BY A FALLING LEG SUPPORT AS IT WAS BEING READIED TO BE INSTALLED UNDER EXISTING LEGS OF ELEVATED CONVEYOR.
1999 · 2 incidents
August 11, 1999IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
EE WAS REPLACING WEAR PLATE INSIDE SURGE HOPPER. WHILE POSIITONING NEW PLATE, HE STRAINED HIS SHOULDER. ON 8/12 EE SOUGHT MEDICAL ATTENTION AND WAS RETURNED TO WORK W/RESTRICTIONS. ON 8/16 EE WAS RELEASED TO FULL DUTY.
March 22, 1999IL · Metal/Non-Metaloutside foreman, leadmanMACHINERY
AS EMPLOYEE WAS CLEANING OUT AUGER ON BULK TRUCK, ANOTHER EMPLOYEE OF EMPLOYER INDADVERTENTLY STARTED THE AUGER SYSTEM RESULTING IN AMPUTATION INJURY TO THE EMPLOYEES RIGHT HAND.
1998 · 1 incident
July 15, 1998IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
EE STATES THAT HE SLIPPED WHILE DESCENDING THE BRIQUETTER BIN AND STRUCK HIS LEFT KNEE AGAINST A STEEL BEAM. INCIDENT WAS REPORTED TO FOREMAN THE DAY OF THE INJURY, BUT NOT RELAYED TO MANAGEME NT UNTIL THE MEDICAL BILLS ARRIVED 8-24. EE SOUGT MEDICAL ATTENTION ON JULY 27TH.
1997 · 5 incidents
October 7, 1997IL · Metal/Non-Metaldryer operator, kiln operator, dry plant operator, fluid operator, bed dryer operatorDISORDERS (REPEATED TRAUMA)
GPF-EMPLOYEE COMPLAINED OF FATIGUE AND TINGLING IN LEFT THUMB FOLLOWING A SERIES OF EXPOSURES TO VIBRATION AND STRAIN TO MINOR BLUNT TRAUMA. EMPLOYEE WAS DIAGNOSED WITH LEFT MEDIAN NERVE IRRIT ABILITY. EMPLOYEE WAS RELEASED FOR RESTRICTED DUTY AND IS RECEIVING ON-GOING MEDICAL TREATMENT. EMPLOYEE WAS USING RAKE AND IMPACT WRENCH. EMPLOYEE WAS DIAGNOSED ON 10-11-97.
September 4, 1997IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
EE WAS CUTTING A SECTION OF CHUTE WHEN HE FELL APPROX 3' BACKWARDS STRIKING HIS BACK ON A HANDRAIL. ON 9/10 HE SOUGHT MEDICAL TREATMENT. HE WAS DIAGNOSED WITH RIGHT LUMBAR CONTUSION/STRAIN & P UT ON LIFTING/BENDING RESTRICTIONS.
May 24, 1997IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techMACHINERY
EMPLOYEE WAS USING 3/4" ELECTRIC IMPACT TOOL TO TIGHTEN OVERHEAD BOLTS. WHEN HE PRESSED ON THE TRIGGEER IT UNEXPECTEDLY STRAINED HIS RIGHT WRIST. ON 6/6 HE SOUGHT MEDICAL TREATMENT AND WAS P UT ON RESTRICTIVE USE OF HIS RIGHT HAND.
May 14, 1997IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techPOWERED HAULAGE
EE WAS ASSISTING IN LOADING A SPOOL OF WIRE INTO THE BUCKET OF A SKID LOADER. THE EE HAD POSITIONED HIMSELF INCORRECTLY AND WHEN THE BUCKET WAS TILTED UP AND THE SPOOL WENT FORWARD HIS LEFT HA ND/WRIST WAS CAUGHT BETWEEN THE WALL AND SPOOL.
March 27, 1997IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
AN EMPLOYEE WAS ON AN ANGLED SURFACE UNHOOKING A CRANE HOOK. AFTER A WHILE EMPLOYEE FELT PAIN IN HIS RIGHT ANKLE. ON 3-29 HIS ANKLE HAD SWOLLEN SO HE SOUGHT MEDICAL ATTENTION. HE WAS DIAGNO SED WITH A SPRAIN TO HIS RIGHT ANKLE.
1996 · 1 incident
October 28, 1996IL · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techEXPLODING VESSELS UNDER PRESSURE
EE WAS USING A CUTTING TORCH ON A LIFTING EYE FOR A CHUTE ASSEMBLY. A RUPTURE IN THE OXYGEN HOSECAUSED AN EXPLOSING WHICH CAUSED 2 DEGREE BURNS TO EE'S RIGHT ABDOMEN.
1995 · 1 incident
October 25, 1995IL · Metal/Non-Metalblaster, shooter, shotfirer, explosive worker, powder gang/monkeyHANDLING OF MATERIALS