Are there injection wells the UIC Program does not regulate?
The UIC Program does not regulate individual or single-family septic systems and “grandfathered” cesspools nor does it regulate non-residential septic systems or “grandfathered” cesspools provided these systems solely receive domestic wastewater and have the capacity to serve fewer than 20 persons per day or dispose of less than 2,000 gallons per day of wastewater. However, in Maine, these discharges are regulated by local and state officials under the Maine Subsurface Wastewater Disposal Rules.
