Setbacks (isolation distances) from drinking water wells must be accounted for when a site is being considered for the land application of biosolids. For Class B injected or surface-applied biosolids with incorporation, land appliers must maintain the following isolation distances: 100 feet from domestic wells, 100 feet from homes or commercial buildings, and 50 feet from any surface waters.
If you have concerns regarding well water quality, contact EGLE’s Drinking Water and Environmental Health Division (DWEHD) to discuss how to analyze well samples. You can also contact your local health department for more information.