Septic System Minimum Setback Requirements

Leach Lines

From ephemeral (seasonal) stream/swale	50 feet
From flowing stream	100 feet
From well, spring, lake, or pond	100 feet
From lake or reservoir used for drinking water	200 feet
From trees	5 feet
From lot lines, roads, driveways, or buildings	8 feet
From a cut or fill (downgradient)	Four (4) times the cut or fill height
From a swimming pool	10 feet
Shall not be placed under asphalt, concrete, or under areas subject to vehicular traffic
Shall not be placed in fill material

From house	5 feet
From any building	5 feet
From trees	5 feet
From lot lines, roads, or driveways	5 feet
From streams, springs, lakes, or reservoirs	50 feet
From well or spring used for domestic purposes	100 feet
From a swimming pool	5 feet
Shall not be installed in areas subject to high groundwater tables

Minimum horizontal separation distance between well and:
Any sewer line (sanitary, industrial, or storm; main or lateral)	50 feet
Watertight septic tank or subsurface sewage leaching field	100 feet
Cesspool or seepage pit	150 feet
Animal or fowl enclosure	100 feet
The above horizontal separation distances are generally considered adequate. Wells should be located outside areas of flooding. The top of the well casing shall terminate above grade and above known levels of flooding caused by drainage or runoff from surrounding land. Area drainage should be directed away from the well, and if necessary, the area around the well shall be built up so that the drainage moves away from the well.