Mining Incidents

MainEx Windsor Gravel Pit Metal/Non-Metal

MainEx · Surface
Augusta, Kennebec County, ME  ·  Active
MSHA Mine ID: 1700926

MainEx Windsor Gravel Pit has $723 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 2020
5
citations
1
significant & substantial
$723
proposed penalties
$723
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
11
inspections on record
90
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: 90 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

MainEx Windsor Gravel Pit has $723 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.
$723
proposed penalties
$723
current assessed
$723
paid to date
$0
outstanding
5 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-07-09.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 766 0 0 0.0
2025 Q3 910 3 1 3296.7
2025 Q2 783 0 0 0.0
2025 Q1 734 0 0 0.0
2024 Q4 518 0 0 0.0
2024 Q3 1,143 0 0 0.0
2024 Q2 619 0 0 0.0
2024 Q1 575 0 0 0.0
Show 22 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 388 0 0 0.0
2023 Q3 836 0 0 0.0
2023 Q2 927 0 0 0.0
2023 Q1 1,494 0 0 0.0
2022 Q4 883 1 0 1132.5
2022 Q3 962 0 0 0.0
2022 Q2 664 0 0 0.0
2022 Q1 442 0 0 0.0
2021 Q4 665 0 0 0.0
2021 Q3 965 0 0 0.0
2021 Q2 993 0 0 0.0
2021 Q1 946 0 0 0.0
2020 Q4 651 1 0 1536.1
2020 Q3 765 0 0 0.0
2020 Q2 530 0 0 0.0
2020 Q1 852 0 0 0.0
2019 Q4 205 0 0 0.0
2019 Q3 302 0 0 0.0
2019 Q2 441 0 0 0.0
2019 Q1 376 0 0 0.0
2018 Q4 414 0 0 0.0
2018 Q3 315 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.

For insurers, brokers, and safety consultants

The full compliance file on MainEx Windsor Gravel Pit

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.