Ohio Well Data field records · 2026 survey

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Kotterman Well Drilling

Recorded as the driller on 4,232 water wells across 13 Ohio counties in the Ohio Department of Natural Resources (ODNR) Division of Geological Survey water-well log database, most in Seneca County. Well-log records span 1979–2016.

4,232wells on record
since 2022
13counties served
95 ftmedian depth

Counties served

Wells drilled by Kotterman Well Drilling, by county, across the full record.

CountyWells drilled
Seneca County 1,659
Wyandot County 1,437
Sandusky County 672
Crawford County 174
Hancock County 136
Hardin County 67
Marion County 66
Ottawa County 11
Wood County 5
Erie County 2
Delaware County 1
Huron County 1

…and 1 more Ohio counties.

Well characteristics

Across the wells Kotterman Well Drilling has drilled, the median depth is 95 ft (middle half 75 ft–115 ft), median tested yield 14 gpm, and median static water level 28 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Kotterman Well Drilling, straight from the public ODNR record:

"Records span 1979–2016" refers to the earliest and latest well logs attributed to this company in the ODNR database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.

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