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Wisconsin Well Drillers & Water Testing Directory

1860 licensed well professionals across 71 Wisconsin counties, from state licensing records.

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Private wells aren't covered by public water regulations — annual testing for bacteria, nitrates, and local contaminants is on you. Get a certified lab test kit or a treatment quote for your area.

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Adams (24)Ashland (16)Barron (19)Bayfield (10)Brown (39)Buffalo (17)Burnett (4)Calumet (16)Chippewa (30)Clark (13)Columbia (29)Crawford (7)Dane (58)Dodge (38)Door (37)Douglas (13)Dunn (23)Eau Claire (24)Florence (3)Fond Du Lac (22)Forest (2)Grant (27)Green (9)Green Lake (8)Iowa (16)Iron (11)Jackson (24)Jefferson (24)Juneau (21)Kenosha (19)Kewaunee (3)La Crosse (30)Lafayette (9)Langlade (11)Lincoln (24)Manitowoc (17)Marathon (65)Marinette (27)Marquette (11)Milwaukee (17)Monroe (27)Oconto (27)Oneida (59)Outagamie (34)Ozaukee (28)Pepin (13)Pierce (13)Polk (34)Portage (31)Price (17)Racine (31)Richland (8)Rock (16)Rusk (6)Sauk (47)Sawyer (15)Shawano (27)Sheboygan (23)St. Croix (33)Taylor (14)Trempealeau (22)Vernon (8)Vilas (26)Walworth (30)Washburn (19)Washington (37)Waukesha (121)Waupaca (22)Waushara (31)Winnebago (28)Wood (60)