⟁ Wisconsin Well Data field records · 2026 survey

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Stephan D Keifenheim

Recorded as the driller on 41 water wells across 7 Wisconsin counties in the Wisconsin Department of Natural Resources Groundwater Retrieval Network (GRN) well-construction records, most in Fond Du Lac County. Well-log records span 1991–1992.

41wells on record
—since 2022
7counties served
160 ftmedian depth

Counties served

Wells drilled by Stephan D Keifenheim, by county, across the full record.

CountyWells drilled
Fond Du Lac County 17
Manitowoc County 12
Sheboygan County 5
Calumet County 4
Ozaukee County 1
Winnebago County 1
Brown County 1

Well characteristics

Across the wells Stephan D Keifenheim has drilled, the median depth is 160 ft (middle half 125 ft–213 ft), median tested yield 15 gpm, and median static water level 43 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Stephan D Keifenheim, straight from the public WI DNR record:

"Records span 1991–1992" refers to the earliest and latest well logs attributed to this company in the WI DNR 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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