Unit 3 Portable Crusher Metal/Non-Metal
Cornerstone Crushing LLC
· Surface
Controlled by
Benjamin Geddis; Steve R Oliver
Claycenter,
Ottawa County,
OH
·
Abandoned
MSHA Mine ID: 3304811
MSHA record for Unit 3 Portable Crusher (mine ID 3304811). 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 2025
1
inspections on record
4
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: 4 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
- Cornerstone Crushing LLC 2024 to present
Source: MSHA controller and operator history, updated weekly.
Unit 3 Portable Crusher sits in Ottawa County, Ohio, where the Census mining category is 0.3% 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.Ottawa County, Ohio · Population 40,161
0.3%
Mining share of county employment
$75,728
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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.