⟁ Wisconsin Well Data field records · 2026 survey

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Ground Source Inc.

Recorded as the driller on 2,237 water wells across 41Wisconsincounties in the Wisconsin Department of Natural Resources Groundwater Retrieval Network (GRN) well-construction records, most in Manitowoc County. Well-log records span 2007–2026.

2,237wells on record
480since 2022
41counties served
200 ftmedian depth

Counties served

Wells drilled by Ground Source Inc., by county, across the full record.

CountyWells drilled
Manitowoc County601
Outagamie County311
Winnebago County299
Brown County253
Door County166
Calumet County152
Marinette County95
Oconto County59
Sheboygan County57
Kewaunee County48
Waupaca County42
Waushara County22
Show all 41counties
Shawano County18
Fond Du Lac County17
Green Lake County13
Grant County9
Menominee County7
Ozaukee County6
Portage County6
Forest County6
Dane County4
Waukesha County4
Washington County4
Vilas County4
Kenosha County3
Dodge County3
Columbia County3
Juneau County3
Langlade County3
Richland County2
Adams County2
Marquette County2
Marathon County2
Green County1
Racine County1
Iowa County1
Sauk County1
Vernon County1
Lincoln County1
Florence County1
Bayfield County1

Well characteristics

Across the wells Ground Source Inc. has drilled, the median depth is 200 ft (middle half 140 ft–280 ft), median tested yield 25 gpm, and median static water level 40 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Ground Source Inc., straight from the public WI DNR record:

"Records span 2007–2026" 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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