Mining Incidents

Tuppers Pit: 88 MSHA citations Metal/Non-Metal

Copp Excavation · Surface
Controlled by Michael S Copp
Durham, Androscoggin County, ME  ·  Intermittent
MSHA Mine ID: 1700808

Tuppers Pit has $23K in proposed MSHA penalties and $0 outstanding across 1 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
88
citations
18
significant & substantial
$22,554
proposed penalties
$20,554
paid to date
91% of proposed penalties paid to date, a $2,000 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
37
inspections on record
461
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: 461 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Tuppers Pit has $23K in proposed MSHA penalties and $0 outstanding across 1 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.
$23K
proposed penalties
$21K
current assessed
$21K
paid to date
$0
outstanding
80 assessments are final orders; 1 contested dockets.
Of $6K in penalties contested before the Commission, $4K was upheld in final decisions.
As of the most recent assessment on 2026-05-06.
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.
22.5%
significant & substantial
8.8%
high negligence or reckless
22.5%
reasonably likely or greater
43.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 12.5% low, 78.8% moderate, 8.8% high, 0.0% reckless.
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.
11 citations taken to the federal commission · 13% of citations on record
  • Settled 11 · 100%
40%
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%
32%
Penalty reduction in decided contests
$6K proposed, $4K 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 2015-07-19.
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.
Docket Decision Judge Year Proposed / upheld
YORK 2015-0115 Settlement Gill 2016 $6K → $4K
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2023-10-11
0%
of limit-tested samples over the exposure limit
4
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg3
  • Quartz, respirable, >1% Qtz1
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-10-11 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-11-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-09-24 Quartz, respirable, >1% Qtz 0.13 0.79 0.16 Front-end Loader Operator
2010-04-29 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. Copp Excavation 2006 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 2
2023 2
2022 2
2021 3
2020 3
2019 3
2018 4
2017 4
2016 4
2015 4
2014 3
2013 3
2012 3
2011 3
2010 3
2009 3
2008 3
2007 3
2006 3
Source: MSHA quarterly employment and production, updated weekly.

Tuppers Pit 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 274 1 1 3649.6
2026 Q1 211 0 0 0.0
2025 Q4 242 0 0 0.0
2025 Q3 357 0 0 0.0
2025 Q2 307 0 0 0.0
2025 Q1 215 0 0 0.0
2024 Q4 298 3 1 10067.1
2024 Q3 339 0 0 0.0
Show 70 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 375 0 0 0.0
2024 Q1 412 0 0 0.0
2023 Q4 391 0 0 0.0
2023 Q3 412 0 0 0.0
2023 Q2 399 2 0 5012.5
2023 Q1 255 0 0 0.0
2022 Q4 301 0 0 0.0
2022 Q3 490 0 0 0.0
2022 Q2 342 0 0 0.0
2022 Q1 327 0 0 0.0
2021 Q4 252 0 0 0.0
2021 Q3 391 0 0 0.0
2021 Q2 359 0 0 0.0
2021 Q1 272 0 0 0.0
2020 Q4 340 0 0 0.0
2020 Q3 378 0 0 0.0
2020 Q2 351 0 0 0.0
2020 Q1 261 0 0 0.0
2019 Q4 311 2 0 6430.9
2019 Q3 388 2 0 5154.6
2019 Q2 373 0 0 0.0
2019 Q1 251 0 0 0.0
2018 Q4 304 0 0 0.0
2018 Q3 394 2 0 5076.1
2018 Q2 379 0 0 0.0
2018 Q1 288 0 0 0.0
2017 Q4 330 0 0 0.0
2017 Q3 416 0 0 0.0
2017 Q1 262 0 0 0.0
2016 Q4 421 1 0 2375.3
2016 Q3 297 0 0 0.0
2016 Q2 264 3 0 11363.6
2016 Q1 259 0 0 0.0
2015 Q4 269 0 0 0.0
2015 Q3 298 0 0 0.0
2015 Q2 503 11 2 21868.8
2015 Q1 208 2 0 9615.4
2014 Q4 411 0 0 0.0
2014 Q3 409 1 1 2445.0
2014 Q2 444 0 0 0.0
2014 Q1 184 0 0 0.0
2013 Q4 383 13 4 33942.6
2013 Q3 383 0 0 0.0
2013 Q2 440 2 0 4545.5
2013 Q1 198 0 0 0.0
2012 Q4 401 3 0 7481.3
2012 Q3 473 6 1 12685.0
2012 Q2 456 0 0 0.0
2012 Q1 316 0 0 0.0
2011 Q4 494 4 1 8097.2
2011 Q3 529 0 0 0.0
2011 Q2 526 0 0 0.0
2011 Q1 521 0 0 0.0
2010 Q4 473 1 1 2114.2
2010 Q3 537 0 0 0.0
2010 Q2 511 0 0 0.0
2010 Q1 481 3 0 6237.0
2009 Q4 481 11 4 22869.0
2009 Q3 521 0 0 0.0
2009 Q2 561 0 0 0.0
2009 Q1 505 0 0 0.0
2008 Q4 645 1 0 1550.4
2008 Q3 738 0 0 0.0
2008 Q2 748 0 0 0.0
2008 Q1 567 0 0 0.0
2007 Q4 570 2 0 3508.8
2007 Q3 639 0 0 0.0
2007 Q2 600 0 0 0.0
2007 Q1 597 2 0 3350.1
2006 Q4 560 10 2 17857.1

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.