Wisconsin Well Data field records · 2026 survey

← All Wisconsin drillers

Dr. John Harkin, UW-Dept. OF Soil Science

Recorded as the driller on 40 water wells across 5 Wisconsin counties in the Wisconsin Department of Natural Resources Groundwater Retrieval Network (GRN) well-construction records, most in Sauk County. Well-log records span –.

40wells on record
since 2022
5counties served
median depth

Counties served

Wells drilled by Dr. John Harkin, UW-Dept. OF Soil Science, by county, across the full record.

CountyWells drilled
Sauk County 15
Columbia County 12
Juneau County 8
Jefferson County 4
Marquette County 1

Well characteristics

Across the wells Dr. John Harkin, UW-Dept. OF Soil Science has drilled, the median depth is , median tested yield , and median static water level 8 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.

"Records span –" 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.

Looking for a well driller in Sauk County? Get quotes

Free for property owners. We route your request only to licensed drillers who actually file well logs in Sauk County — never sold elsewhere.

Is this your company?

This page is built from the public WI DNR well-log record and helps property owners find a driller. Claim it (free) to confirm the details are right and give customers a way to reach you.

Claim this page

This directory helps property owners find a driller, using public WI DNR records. Claim your page to confirm the details are accurate and give customers a way to reach you. Free — reviewed before anything goes live.

Want the top spot too? Featured lifts you to the top of the Wisconsin driller directory, above the unclaimed listings, and marks you with a ★ and a Featured badge on every county ranking you appear in — $49/mo, cancel anytime. County rankings stay ordered by wells actually drilled, so a sponsor never outranks the record. Claiming stays free either way.