Mining Incidents

JCI JAW CRUSHER-WHEELS: 142 MSHA citations Metal/Non-Metal

JIG Aggregates · Surface
Controlled by John M Gendron
Lewiston, Androscoggin County, ME  ·  Active
MSHA Mine ID: 1700739

JCI JAW CRUSHER-WHEELS has $31K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2003
Latest incident
Jun 2003
Compliance record
MSHA citations since 2003
142
citations
30
significant & substantial
$30,541
proposed penalties
$30,541
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2003
53
inspections on record
669
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: 669 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2024-09-11.
On record since 2024.
Source: MSHA imminent-danger order records, updated weekly.

JCI JAW CRUSHER-WHEELS has $31K 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.
$31K
proposed penalties
$31K
current assessed
$31K
paid to date
$0
outstanding
136 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-06-16.
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.
21.6%
significant & substantial
6.5%
high negligence or reckless
21.6%
reasonably likely or greater
62.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 14.4% low, 79.1% moderate, 6.5% high, 0.0% reckless.
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: 2026-06-17
17%
of limit-tested samples over the exposure limit
20
samples
12
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz122 over
  • Respirable dust, <.1mg7
  • Nuisance dust, respirable, <1% Qtz1
Show the individual readings (20)
Date Contaminant Concentration Limit Conc / limit Occupation
2016-09-20 Quartz, respirable, >1% Qtz 0.9 0.56 1.61 Laborer, Bullgang
2003-05-14 Quartz, respirable, >1% Qtz 1.16 1 1.16 Crusher Oper/Worker
2026-06-17 Respirable dust, <.1mg 0 Laborer, Bullgang
2026-06-17 Respirable dust, <.1mg 0 Complete Load-Haul-Dump
2022-07-12 Quartz, respirable, >1% Qtz 0.23 0.65 0.35 Crusher Oper/Worker
2022-07-12 Quartz, respirable, >1% Qtz 0.22 Backhoe Operator
2019-06-26 Quartz, respirable, >1% Qtz 0.37 0.52 0.71 Laborer, Bullgang
2016-09-20 Quartz, respirable, >1% Qtz 0.53 2.77 0.19 Crusher Oper/Worker
2016-09-20 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-08-07 Nuisance dust, respirable, <1% Qtz 0.28 10 0.03 Laborer, Bullgang
2014-08-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-08-07 Quartz, respirable, >1% Qtz 0.12 0.77 0.16 Crusher Oper/Worker
2012-10-03 Quartz, respirable, >1% Qtz 0.24 0.55 0.44 Crusher Oper/Worker
2012-10-03 Quartz, respirable, >1% Qtz 0.41 0.74 0.55 Laborer, Bullgang
2012-10-03 Respirable dust, <.1mg 0 Front-end Loader Operator
2008-10-23 Quartz, respirable, >1% Qtz 0.66 1.3 0.51 Cleanup Man
2008-10-23 Respirable dust, <.1mg 0 Drill Operator, Rotary
2003-05-14 Quartz, respirable, >1% Qtz 0.2 0.97 0.21 Truck Driver
2003-05-14 Quartz, respirable, >1% Qtz 0.23 1.08 0.21 Front-end Loader Operator
2003-05-14 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.
Ownership history
  1. Gendron Aggregate Supply, Inc. 2002 to 2020
  2. JIG Aggregates 2020 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 18
2025 14
2024 8
2023 8
2022 7
2021 8
2020 7
2019 5
2018 4
2017 5
2016 6
2015 4
2014 5
2013 4
2012 4
2011 3
2010 2
2009 1
2008 4
2007 4
2006 6
2005 4
2004 3
2003 3
2002 2
Source: MSHA quarterly employment and production, updated weekly.

JCI JAW CRUSHER-WHEELS sits in Androscoggin County, Maine, 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.
Androscoggin County, Maine · Population 112,323
0.0%
Mining share of county employment
$67,298
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 5,216 3 1 575.2
2026 Q1 5,249 0 0 0.0
2025 Q4 3,666 0 0 0.0
2025 Q3 4,884 0 0 0.0
2025 Q2 5,297 0 0 0.0
2025 Q1 3,104 0 0 0.0
2024 Q4 4,655 2 0 429.6
2024 Q3 3,795 6 1 1581.0
Show 88 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,288 0 0 0.0
2024 Q1 1,831 0 0 0.0
2023 Q4 3,738 0 0 0.0
2023 Q3 2,809 0 0 0.0
2023 Q2 4,457 0 0 0.0
2023 Q1 2,698 0 0 0.0
2022 Q4 4,129 0 0 0.0
2022 Q3 4,364 4 0 916.6
2022 Q2 4,522 0 0 0.0
2022 Q1 2,297 0 0 0.0
2021 Q4 4,576 0 0 0.0
2021 Q3 5,153 0 0 0.0
2021 Q2 2,784 6 1 2155.2
2021 Q1 1,550 0 0 0.0
2020 Q4 2,735 0 0 0.0
2020 Q3 3,701 3 1 810.6
2020 Q2 3,512 0 0 0.0
2019 Q4 74 0 0 0.0
2019 Q3 283 0 0 0.0
2019 Q2 159 1 0 6289.3
2018 Q4 542 0 0 0.0
2018 Q3 1,651 3 0 1817.1
2018 Q2 1,879 0 0 0.0
2018 Q1 2 0 0 0.0
2017 Q4 3,016 0 0 0.0
2017 Q3 4,032 10 1 2480.2
2017 Q2 2,073 0 0 0.0
2017 Q1 2 0 0 0.0
2016 Q4 4,366 3 2 687.1
2016 Q3 4,366 7 1 1603.3
2016 Q2 1,418 0 0 0.0
2016 Q1 2 0 0 0.0
2015 Q4 3,261 0 0 0.0
2015 Q3 3,453 10 3 2896.0
2015 Q2 2,479 0 0 0.0
2015 Q1 0 0 0
2014 Q4 2,973 0 0 0.0
2014 Q3 3,115 3 0 963.1
2014 Q2 2,779 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 1,902 0 0 0.0
2013 Q3 2,595 0 0 0.0
2013 Q2 1,719 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 2,139 3 0 1402.5
2012 Q3 2,593 0 0 0.0
2012 Q2 1,719 0 0 0.0
2012 Q1 1 0 0 0.0
2011 Q4 1,794 2 0 1114.8
2011 Q3 2,109 0 0 0.0
2011 Q2 1,308 0 0 0.0
2011 Q1 160 0 0 0.0
2010 Q4 1,545 1 0 647.2
2010 Q3 1,800 12 6 6666.7
2010 Q2 1,250 0 0 0.0
2010 Q1 0 0 0
2009 Q4 0 17 5
2009 Q3 2 0 0 0.0
2009 Q2 448 0 0 0.0
2009 Q1 1 0 0 0.0
2008 Q4 1,231 6 0 4874.1
2008 Q3 803 0 0 0.0
2008 Q2 2,391 0 0 0.0
2008 Q1 1 0 0 0.0
2007 Q4 1,901 5 1 2630.2
2007 Q3 2,341 0 0 0.0
2007 Q2 2,305 0 0 0.0
2007 Q1 2 0 0 0.0
2006 Q4 1,854 6 0 3236.2
2006 Q3 2,825 0 0 0.0
2006 Q2 2,501 0 0 0.0
2006 Q1 812 0 0 0.0
2005 Q4 948 6 0 6329.1
2005 Q3 1,521 8 1 5259.7
2005 Q2 766 0 0 0.0
2005 Q1 121 0 0 0.0
2004 Q4 501 0 0 0.0
2004 Q3 451 6 2 13303.8
2004 Q2 1,366 0 0 0.0
2004 Q1 351 0 0 0.0
2003 Q4 1,451 0 0 0.0
2003 Q3 671 0 0 0.0
2003 Q2 752 7 4 9308.5
2003 Q1 490 0 0 0.0
2002 Q4 1,327 0 0 0.0
2002 Q3 1,101 0 0 0.0
2002 Q2 634 0 0 0.0
2002 Q1 0 0 0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2003 · 1 incident

June 2, 2003 ME · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Gendron Aggregate Supply, Inc. · Over-exertion (Not Elsewhere Classified)

EE PICKED UP A ROCK THAT WAS JAMMING THE JAW AND FELT A WARM PAIN IN IS RT. FOREARM NEAR HIS ELBOW.