Mining Incidents

Pioneer 3055 #810005: 69 MSHA citations Metal/Non-Metal

Sargent Corporation · Surface
Controlled by S C Holdings Inc
Plymouth, Penobscot County, ME  ·  Active
MSHA Mine ID: 1700718

Pioneer 3055 #810005 has $9K in proposed MSHA penalties and $1K outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
5
Years on record
2002–2023
Latest incident
Feb 2023
Compliance record
MSHA citations since 2004
69
citations
11
significant & substantial
$9,233
proposed penalties
$7,949
paid to date
86% of proposed penalties paid to date, a $1,284 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2004
36
inspections on record
513
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: 513 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Pioneer 3055 #810005 has $9K in proposed MSHA penalties and $1K 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.
$9K
proposed penalties
$9K
current assessed
$8K
paid to date
$1K
outstanding
69 assessments are final orders; 1 contested dockets.
Of $118 in penalties contested before the Commission, $118 was upheld in final decisions.
As of the most recent assessment on 2026-04-22.
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.
15.9%
significant & substantial
4.3%
high negligence or reckless
15.9%
reasonably likely or greater
56.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 36.2% low, 59.4% moderate, 4.3% 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.
1 citations taken to the federal commission · 1% of citations on record
  • Settled 1 · 100%
0%
Penalty reduction in decided contests
$118 proposed, $118 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 2018-12-19.
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 2019-0018 Settlement Miller 2019 $118 → $118
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: 2022-11-29, 3 years ago
45%
of limit-tested samples over the exposure limit
14
samples
11
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz115 over
  • Respirable dust, <.1mg3
Show the individual readings (14)
Date Contaminant Concentration Limit Conc / limit Occupation
2022-07-07 Quartz, respirable, >1% Qtz 0.73 0.66 1.11 Crusher Oper/Worker
2020-10-27 Quartz, respirable, >1% Qtz 0.98 0.61 1.61 Cleanup Man
2020-10-27 Quartz, respirable, >1% Qtz 1 0.64 1.56 Cleanup Man
2014-10-30 Quartz, respirable, >1% Qtz 0.91 0.53 1.72 Utility Man
2014-10-30 Quartz, respirable, >1% Qtz 0.57 0.53 1.08 Crusher Oper/Worker
2022-11-29 Quartz, respirable, >1% Qtz 0.66 0.78 0.85 Crusher Oper/Worker
2022-11-29 Respirable dust, <.1mg 0 Utility Man
2022-07-07 Respirable dust, <.1mg 0 Bobcat Operator
2022-07-07 Quartz, respirable, >1% Qtz 0.35 0.57 0.61 Truck Driver
2022-07-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-05-11 Quartz, respirable, >1% Qtz 0.62 0.64 0.97 Cleanup Man
2021-05-11 Quartz, respirable, >1% Qtz 0.45 0.53 0.85 Cleanup Man
2020-10-27 Quartz, respirable, >1% Qtz 0.69 1.82 0.38 Crusher Oper/Worker
2015-05-21 Quartz, respirable, >1% Qtz 0.19 0.39 0.49 Utility Man
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. HE SARGENT INC 2001 to 2005
  2. Sargent Corporation 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 8
2024 9
2023 9
2022 9
2021 7
2020 7
2019 8
2018 6
2017 7
2016 6
2015 4
2014 3
2013 4
2012 4
2011 2
2010 4
2009 3
2008 4
2007 5
2006 2
2005 3
2004 2
2003 1
2002 4
Source: MSHA quarterly employment and production, updated weekly.

Pioneer 3055 #810005 sits in Penobscot 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.
Penobscot County, Maine · Population 153,571
0.0%
Mining share of county employment
$63,248
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 4,835 2 0 413.7
2026 Q1 4,301 1 0 232.5
2025 Q4 3,882 0 0 0.0
2025 Q3 5,337 11 1 2061.1
2025 Q2 4,503 0 0 0.0
2025 Q1 3,804 0 0 0.0
2024 Q4 4,306 2 0 464.5
2024 Q3 4,918 1 0 203.3
Show 88 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 5,635 0 0 0.0
2024 Q1 3,848 0 0 0.0
2023 Q4 4,091 1 0 244.4
2023 Q3 4,471 0 0 0.0
2023 Q2 4,715 0 0 0.0
2023 Q1 4,537 0 0 0.0
2022 Q4 5,131 2 0 389.8
2022 Q3 5,577 1 0 179.3
2022 Q2 4,566 0 0 0.0
2022 Q1 1,489 0 0 0.0
2021 Q4 4,950 3 0 606.1
2021 Q3 4,257 0 0 0.0
2021 Q2 3,133 2 0 638.4
2021 Q1 1,360 0 0 0.0
2020 Q4 2,923 6 1 2052.7
2020 Q3 3,441 0 0 0.0
2020 Q2 4,450 0 0 0.0
2020 Q1 1,830 0 0 0.0
2019 Q4 3,565 3 0 841.5
2019 Q3 4,495 0 0 0.0
2019 Q2 4,849 0 0 0.0
2019 Q1 965 0 0 0.0
2018 Q4 3,279 2 0 609.9
2018 Q3 3,219 0 0 0.0
2018 Q2 3,094 0 0 0.0
2018 Q1 1,153 0 0 0.0
2017 Q4 3,005 0 0 0.0
2017 Q3 4,183 0 0 0.0
2017 Q2 3,158 0 0 0.0
2017 Q1 49 0 0 0.0
2016 Q4 721 0 0 0.0
2016 Q3 3,251 0 0 0.0
2016 Q2 3,774 0 0 0.0
2016 Q1 897 0 0 0.0
2015 Q4 875 3 0 3428.6
2015 Q3 1,325 0 0 0.0
2015 Q2 1,400 0 0 0.0
2015 Q1 916 0 0 0.0
2014 Q4 1,335 2 0 1498.1
2014 Q3 1,541 0 0 0.0
2014 Q2 236 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 435 1 0 2298.9
2013 Q3 1,731 0 0 0.0
2013 Q2 176 1 0 5681.8
2013 Q1 1 0 0 0.0
2012 Q4 271 0 0 0.0
2012 Q3 1,669 0 0 0.0
2012 Q2 752 0 0 0.0
2012 Q1 1 0 0 0.0
2011 Q4 36 0 0 0.0
2011 Q3 1 1 0 1000000.0
2011 Q2 578 0 0 0.0
2011 Q1 1 0 0 0.0
2010 Q4 1,065 0 0 0.0
2010 Q3 575 5 3 8695.7
2010 Q2 670 0 0 0.0
2010 Q1 1 0 0 0.0
2009 Q4 787 0 0 0.0
2009 Q3 293 0 0 0.0
2009 Q2 2,124 0 0 0.0
2009 Q1 1 0 0 0.0
2008 Q4 489 1 0 2045.0
2008 Q3 1 0 0 0.0
2008 Q2 24 0 0 0.0
2008 Q1 572 0 0 0.0
2007 Q4 2,758 0 0 0.0
2007 Q3 2,367 2 0 845.0
2007 Q2 214 0 0 0.0
2007 Q1 81 0 0 0.0
2006 Q4 1 0 0 0.0
2006 Q3 1 0 0 0.0
2006 Q2 1 0 0 0.0
2006 Q1 242 0 0 0.0
2005 Q4 1,985 2 1 1007.6
2005 Q3 937 0 0 0.0
2005 Q2 0 0 0
2005 Q1 0 0 0
2004 Q4 0 0 0
2004 Q3 456 12 5 26315.8
2004 Q2 871 0 0 0.0
2004 Q1 0 0 0
2003 Q3 162 0 0 0.0
2003 Q2 290 0 0 0.0
2003 Q1 0 0 0
2002 Q4 1,404 0 0 0.0
2002 Q3 2,837 0 0 0.0
2002 Q2 2,881 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

5 on file

2023 · 2 incidents

February 8, 2023 ME · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Sargent Corporation · Fall to the walkway or working surface

Employee was walking to the portable restroom onsite when employee slipped and fell, breaking leg.

January 23, 2023 ME · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Sargent Corporation · Fall onto or against objects

Employee was walking back to the cab of the dozer when they slipped on fresh snow and fell, striking their head on the bulldozer.

2019 · 1 incident

June 5, 2019 ME · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver NONPOWERED HAULAGE
Sargent Corporation · Over-exertion in lifting objects

Employee was picking up a full wheelbarrow in order to empty. As EE did EE twisted and strained lower back, aggravating a previous injury.

2012 · 1 incident

August 14, 2012 ME · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Sargent Corporation · Caught in, under or between a moving and a stationary object

Two employees were lifting a rock and one employee lifted before the other was ready. The injured employee received a blood blister on his right middle finger and received 1st aid. On Monday 8/20/12 it was discovered that the injury had become infected. Wound was cleaned and treated with an antibiotic and employee returned to work.

2002 · 1 incident

April 5, 2002 ME · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
HE SARGENT INC · Caught in, under or between (Not Elsewhere Classified)

AMPUTATE END OF LITTLE FINGER AND LACERATION ON MIDDLE FINGER-RT HAND.