Iowa Well Data field records · 2026 survey

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Martin,Gary - 40473

Recorded as the driller on 331 water wells across 15 Iowa counties in the Iowa DNR Well Information System (IWIS), most in Winneshiek County. Well-log records span 1950–2004.

331wells on record
since 2022
15counties served
300 ftmedian depth

Counties served

Wells drilled by Martin,Gary - 40473, by county, across the full record.

CountyWells drilled
Winneshiek County 98
Allamakee County 74
Fayette County 52
Clayton County 30
Howard County 19
Chickasaw County 15
Floyd County 11
Butler County 9
Mitchell County 8
Bremer County 6
Buchanan County 4
Black Hawk County 2

…and 3 more Iowa counties.

Well characteristics

Across the wells Martin,Gary - 40473 has drilled, the median depth is 300 ft (middle half 160 ft–454 ft), median tested yield , and median static water level below ground surface. These summarize the company's own filed logs, not a marketing claim.

Original drilling logs

Recent well logs filed by Martin,Gary - 40473, straight from the public Iowa DNR record:

"Records span 1950–2004" refers to the earliest and latest well logs attributed to this company in the Iowa 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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