a person in a tractor doing field work

Manure Management and Water Quality

This series of maps and images (PDF, 9874 KB) shows: Examples of karts features (like sinkholes) that make surface water and groundwater in Fond du Lac County particularly vulnerable to contamination from field runoff, leaking septic systems, and over-applied lawn and garden chemicals. Regulations and rules that farmers follow when land applying manure, whey, or […]

picture of part of the drinking well

Well Water User Survey Update

More than 400 area residents have completed a survey about well water and more are needed. “I’m proud to say we have amazed the researchers helping us in River Falls with the tremendous participation of area residents so far,” says Diana Hammer Tscheschlok, Community, Natural Resource, and Economic Development Educator with the University of Wisconsin-Extension, […]

test tubes with colored fluids

Osceola & Mitchell: Well Water Sampling Results

41 residents in the Towns of Osceola and Mitchell (Sheboygan Co.) tested their well water in July with UW-Extension. View the complete results including maps (PDF. 3.8MB). 90% (37) of the wells tested measured very low nitrate levels. 17% (7) of wells tested positive for coliform bacteria, which is typical of most other WI communities. […]

cross section of a well connected to the pressure tank in a basement

Oakfield & Fond du Lac Well Sampling Results

Residents in the Towns of Fond du Lac and Oakfield learned that their samples returned better results than the state average this week.  Coliform bacteria, nitrate, and arsenic, three of the most common problems detected with well water systems, were found minimally or not at all in the 118 wells sampled in the two townships. […]

leaky faucet

Well Water Sampling Videos

This 3-minute video goes over the instructions for taking a clean water sample from the pressure tank in a home with a private drinking water well. You can pause as you go and follow along step-by-step. This Fond du Lac County video shows the steps.

drippy faucet

Town of Fond du Lac Water Quality

Town of Fond du Lac residents sampled water on April 8, 2013.  Learn the results. Prior to this program, residents in the Town of Fond du Lac last sampled with the UW-Extension lab in Stevens Point in June, 2002. At that time, 87 wells were sampled.  Seven (9%) tested positive for coliform bacteria. Zero wells […]


Town of Oakfield Water Quality

Town of Oakfield residents sampled well water on April 8, 2013.  View the results. Residents in the Town of Oakfield last sampled with the UW-Extension lab in Stevens Point in November, 1991. At that time, 44 wells were sampled. 10 of them (24%) tested positive for coliform bacteria. 4 (10%) of them had nitrate levels […]

test tubes filled with liquids

High Nitrates, What Now?

Discovering that your drinking water well has high levels of nitrates can be discouraging. However, knowing the nitrate level is an important step in maintaining the health of everyone in your household. The US Environmental Protection Agency states that drinking water with nitrate levels over 10mg/L is not safe for pregnant women and young children […]

stone wall in a wooded area - boy drinking from a bubbler

Fond du Lac County Water Quality Booklet

Now there is an educational booklet specifically for private well water users in Fond du Lac County. The booklet was developed in 2010 by UW-Extension, WDNR, and Fond du Lac County. Protect the Water You Drink – 2010 (PDF, 9 pgs) A paper copy of the booklet and more information on county water quality can be […]

part of a water well

El Agua de Noria

Todos en el condado de Fond du Lac recibimos el agua potable de norias, sean norias del municipio o sean norias privadas. El agua de las norias de los municipios se analiza los empleados del municipio frecuentemente. Si no está saludable tomar, el municipio alerta al público que esté afectada. El agua de las norias […]