Mining Incidents

Komatsu Plant #1: 33 MSHA citations Metal/Non-Metal

American Excavating Corp · Surface
Controlled by Alfred T Lannan
Derry, Rockingham County, NH  ·  Abandoned
MSHA Mine ID: 2700412

Komatsu Plant #1 has $3K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2006
33
citations
4
significant & substantial
$3,426
proposed penalties
$3,426
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
21
inspections on record
198
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: 198 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Komatsu Plant #1 has $3K 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.
$3K
proposed penalties
$3K
current assessed
$3K
paid to date
$0
outstanding
33 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-08-17.
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.
12.1%
significant & substantial
3.0%
high negligence or reckless
12.1%
reasonably likely or greater
51.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 12.1% low, 84.8% moderate, 3.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. American Excavating Corp 2006 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2023 1
2022 2
2021 3
2020 3
2019 3
2018 3
2017 3
2016 3
2015 3
2014 3
2013 3
2012 3
2011 3
2010 3
2009 3
2008 3
2007 3
2006 2
Source: MSHA quarterly employment and production, updated weekly.

Komatsu Plant #1 sits in Rockingham County, New Hampshire, 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.
Rockingham County, New Hampshire · Population 317,163
0.0%
Mining share of county employment
$113,927
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
2023 Q4 1 0 0 0.0
2023 Q3 0 1 0
2023 Q2 0 0 0
2023 Q1 190 0 0 0.0
2022 Q4 10 0 0 0.0
2022 Q3 38 0 0 0.0
2022 Q2 196 0 0 0.0
2022 Q1 15 0 0 0.0
Show 63 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2021 Q4 254 0 0 0.0
2021 Q3 94 0 0 0.0
2021 Q2 574 0 0 0.0
2021 Q1 228 0 0 0.0
2020 Q4 633 0 0 0.0
2020 Q3 425 0 0 0.0
2020 Q2 25 0 0 0.0
2020 Q1 313 0 0 0.0
2019 Q4 340 0 0 0.0
2019 Q3 870 0 0 0.0
2019 Q2 380 0 0 0.0
2019 Q1 10 0 0 0.0
2018 Q4 515 0 0 0.0
2018 Q3 492 0 0 0.0
2018 Q2 1,020 0 0 0.0
2018 Q1 20 0 0 0.0
2017 Q4 636 0 0 0.0
2017 Q3 1,066 0 0 0.0
2017 Q2 760 3 0 3947.4
2017 Q1 96 0 0 0.0
2016 Q4 616 0 0 0.0
2016 Q3 680 0 0 0.0
2016 Q2 1,032 5 0 4845.0
2016 Q1 696 0 0 0.0
2015 Q4 888 0 0 0.0
2015 Q3 584 0 0 0.0
2015 Q2 200 2 0 10000.0
2015 Q1 211 0 0 0.0
2014 Q4 931 0 0 0.0
2014 Q3 355 3 1 8450.7
2014 Q2 392 0 0 0.0
2014 Q1 40 0 0 0.0
2013 Q4 897 0 0 0.0
2013 Q3 56 3 0 53571.4
2013 Q2 498 0 0 0.0
2013 Q1 45 0 0 0.0
2012 Q4 525 0 0 0.0
2012 Q3 737 1 0 1356.9
2012 Q2 274 0 0 0.0
2012 Q1 50 0 0 0.0
2011 Q4 370 0 0 0.0
2011 Q3 812 0 0 0.0
2011 Q2 508 0 0 0.0
2011 Q1 60 4 1 66666.7
2010 Q4 692 0 0 0.0
2010 Q3 300 0 0 0.0
2010 Q2 850 0 0 0.0
2010 Q1 60 0 0 0.0
2009 Q4 440 2 1 4545.5
2009 Q3 880 0 0 0.0
2009 Q2 210 0 0 0.0
2009 Q1 75 0 0 0.0
2008 Q4 495 0 0 0.0
2008 Q3 1,115 0 0 0.0
2008 Q2 510 0 0 0.0
2008 Q1 75 0 0 0.0
2007 Q4 495 3 0 6060.6
2007 Q3 1,225 0 0 0.0
2007 Q2 399 0 0 0.0
2007 Q1 385 0 0 0.0
2006 Q4 1,075 3 1 2790.7
2006 Q3 800 3 0 3750.0
2006 Q2 850 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.