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Plant #2 Metal/Non-Metal

AM Miller Trucking, LLC · Surface
Controlled by Robert E Miller
Portland, Clinton County, MI  ·  Intermittent
MSHA Mine ID: 2003600

MSHA record for Plant #2 (mine ID 2003600). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
0
Years on record
—
Latest incident
—
Inspection activity
MSHA inspections since 2020
5
inspections on record
40
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: 40 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, 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: 2026-08-20
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-08-20 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-11-21 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. AM Miller Trucking, LLC 2020 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2024 1
2023 1
2022 1
2021 1
2020 1
Source: MSHA quarterly employment and production, updated weekly.

Plant #2 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
2024 Q2 60 0 0 0.0
2024 Q1 38 0 0 0.0
2023 Q4 203 0 0 0.0
2023 Q3 215 0 0 0.0
2023 Q2 100 0 0 0.0
2023 Q1 165 0 0 0.0
2022 Q4 250 0 0 0.0
2021 Q2 186 0 0 0.0
Show 4 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2021 Q1 210 0 0 0.0
2020 Q4 100 0 0 0.0
2020 Q3 274 0 0 0.0
2020 Q2 40 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.