Mining Incidents

Portable Plant #3 (Teesab): 7 MSHA citations Metal/Non-Metal

Lester Brothers Inc. · Surface
Jackson, Jackson County, MI  ·  Intermittent
MSHA Mine ID: 2003456

Portable Plant #3 (Teesab) has $1K in proposed MSHA penalties and $453 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Portable Plant #3 (Teesab).

Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2017
7
citations
2
significant & substantial
$1,004
proposed penalties
$551
paid to date
55% of proposed penalties paid to date, a $453 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2017
10
inspections on record
58
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: 58 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 Plant #3 (Teesab) has $1K in proposed MSHA penalties and $453 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
$551
paid to date
$453
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-07-08.
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.
28.6%
significant & substantial
0.0%
high negligence or reckless
28.6%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 28.6% low, 71.4% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Lester Brothers Inc. 2012 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 5
2024 2
2019 0
2018 2
2017 2
2016 1
Source: MSHA quarterly employment and production, updated weekly.

Portable Plant #3 (Teesab) sits in Jackson 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.
Jackson County, Michigan · Population 160,187
0.1%
Mining share of county employment
$65,004
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 375 0 0 0.0
2026 Q1 620 0 0 0.0
2025 Q4 4,006 0 0 0.0
2025 Q2 1,696 2 0 1179.2
2024 Q4 300 0 0 0.0
2024 Q3 100 0 0 0.0
2024 Q2 529 0 0 0.0
2024 Q1 377 0 0 0.0
Show 13 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2019 Q3 0 0 0
2019 Q2 459 0 0 0.0
2019 Q1 0 0 0
2018 Q4 1,236 0 0 0.0
2018 Q3 1,369 0 0 0.0
2018 Q2 1,331 0 0 0.0
2018 Q1 581 0 0 0.0
2017 Q4 634 0 0 0.0
2017 Q3 1,020 0 0 0.0
2017 Q2 1,235 1 0 809.7
2017 Q1 261 0 0 0.0
2016 Q4 577 0 0 0.0
2016 Q3 587 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.