Mining Incidents

Plant #1: 8 MSHA citations Metal/Non-Metal

AM Miller Trucking, LLC · Surface
Controlled by Robert E Miller
Portland, Clinton County, MI  ·  Intermittent
MSHA Mine ID: 2003550

Plant #1 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 2018
8
citations
3
significant & substantial
$1,000
proposed penalties
$1,000
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2018
14
inspections on record
127
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: 127 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Plant #1 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 2023-07-05.
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.
37.5%
significant & substantial
0.0%
high negligence or reckless
37.5%
reasonably likely or greater
12.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 37.5% low, 62.5% 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: 2024-08-08
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-08-08 Respirable dust, <.1mg 0 Dry Screen Plant Operator
2021-06-23 Respirable dust, <.1mg 0 Dry Screen Plant 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. AM Miller Trucking, LLC 2017 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 2
2020 2
2019 3
2018 2
2017 2
Source: MSHA quarterly employment and production, updated weekly.

Plant #1 sits in Clinton County, Michigan, 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.
Clinton County, Michigan · Population 79,419
0.1%
Mining share of county employment
$85,928
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 586 0 0 0.0
2026 Q1 300 0 0 0.0
2025 Q4 538 0 0 0.0
2025 Q3 581 0 0 0.0
2025 Q2 663 0 0 0.0
2025 Q1 476 0 0 0.0
2024 Q4 520 0 0 0.0
2024 Q3 592 0 0 0.0
Show 28 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 160 0 0 0.0
2024 Q1 305 0 0 0.0
2023 Q4 379 0 0 0.0
2023 Q3 515 1 0 1941.7
2023 Q2 531 0 0 0.0
2023 Q1 342 0 0 0.0
2022 Q4 339 0 0 0.0
2022 Q3 911 0 0 0.0
2022 Q2 772 0 0 0.0
2022 Q1 100 0 0 0.0
2021 Q4 736 1 0 1358.7
2021 Q3 1,040 0 0 0.0
2021 Q2 704 0 0 0.0
2021 Q1 68 3 1 44117.6
2020 Q4 850 0 0 0.0
2020 Q3 761 0 0 0.0
2020 Q2 617 0 0 0.0
2020 Q1 763 0 0 0.0
2019 Q4 931 1 0 1074.1
2019 Q3 1,742 0 0 0.0
2019 Q2 1,102 0 0 0.0
2019 Q1 857 0 0 0.0
2018 Q4 559 2 2 3577.8
2018 Q3 768 0 0 0.0
2018 Q2 656 0 0 0.0
2018 Q1 332 0 0 0.0
2017 Q4 391 0 0 0.0
2017 Q3 528 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.