Welcome to the Rock County Public Health Department's Nitrate Risk Map. You can use this map to identify an estimated risk of nitrates reaching the groundwater in your area. Note that the risk levels are estimates and do not reflect actual nitrate levels in drinking water.

Actual nitrate levels in your drinking water are also affected by groundwater flow and your well depth. When using this map you should look at the risk level for your area and the surrounding areas as well. For more information about this map, see the About the Risk Mapping Tool section.

For the best viewing experience, we recommend accessing the map directly. You can also view the mapping application below.


Nitrate Risk Map