Mining Incidents

Portable Rental Crusher: 8 MSHA citations Metal/Non-Metal

Sargent Corporation · Surface
Controlled by S C Holdings Inc
Manchester, Kennebec County, ME  ·  Temporarily Idled
MSHA Mine ID: 1700518

Portable Rental Crusher has $1K 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 2011
8
citations
2
significant & substantial
$1,131
proposed penalties
$1,131
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2011
5
inspections on record
52
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: 52 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable Rental Crusher has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
8 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-09-10.
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.
25.0%
significant & substantial
0.0%
high negligence or reckless
25.0%
reasonably likely or greater
37.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 50.0% low, 50.0% moderate, 0.0% 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: 2011-11-02, 14 years ago
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2011-11-02 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2011-11-02 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. H E Sargent Inc 1980 to 2011
  2. Sargent Corporation 2011 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 3
2024 3
2023 2
2022 2
2021 1
2016 1
2015 1
2014 3
2013 1
2012 3
2011 5
Source: MSHA quarterly employment and production, updated weekly.

Portable Rental Crusher sits in Kennebec County, Maine, where the Census mining category is 0.1% 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.
Kennebec County, Maine · Population 125,614
0.1%
Mining share of county employment
$65,062
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 32 0 0 0.0
2026 Q1 3 0 0 0.0
2025 Q4 54 0 0 0.0
2025 Q3 581 0 0 0.0
2025 Q2 523 0 0 0.0
2025 Q1 643 0 0 0.0
2024 Q4 489 0 0 0.0
2024 Q3 375 4 1 10666.7
Show 29 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 324 0 0 0.0
2024 Q1 591 0 0 0.0
2023 Q4 12 0 0 0.0
2023 Q3 2 0 0 0.0
2023 Q2 452 0 0 0.0
2023 Q1 297 0 0 0.0
2022 Q4 566 2 1 3533.6
2022 Q3 3 0 0 0.0
2022 Q2 2 0 0 0.0
2022 Q1 3 0 0 0.0
2021 Q4 1 0 0 0.0
2021 Q3 1 0 0 0.0
2016 Q2 1 0 0 0.0
2016 Q1 1 0 0 0.0
2015 Q4 1 0 0 0.0
2015 Q3 1 0 0 0.0
2015 Q2 1 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 485 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 1 0 0 0.0
2013 Q3 1 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q3 1 0 0 0.0
2012 Q2 777 0 0 0.0
2012 Q1 25 0 0 0.0
2011 Q4 1,452 0 0 0.0
2011 Q3 1,423 1 0 702.7
2011 Q2 456 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.