Wisconsin Well Data field records · 2026 survey

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Central Well Drilling LLC

Recorded as the driller on 2,757 water wells across 28 Wisconsin counties in the Wisconsin Department of Natural Resources Groundwater Retrieval Network (GRN) well-construction records, most in Green Lake County. Well-log records span 1994–2013.

2,757wells on record
since 2022
28counties served
150 ftmedian depth

Counties served

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

CountyWells drilled
Green Lake County 759
Fond Du Lac County 496
Dodge County 490
Columbia County 241
Marquette County 238
Winnebago County 223
Waushara County 101
Dane County 68
Sauk County 45
Jefferson County 43
Outagamie County 7
Adams County 6

…and 16 more Wisconsin counties.

Well characteristics

Across the wells Central Well Drilling LLC has drilled, the median depth is 150 ft (middle half 122 ft–190 ft), median tested yield 20 gpm, and median static water level 34 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Central Well Drilling LLC, straight from the public WI DNR record:

"Records span 1994–2013" 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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