Septic System Setbacks

Setbacks for a septic system in Arizona are required by the state rules to prevent groundwater pollution, improve the life of the system, and avoid problems.

Well 100 ft

Drinking water intake from a water body, spring, well tapping streambed 200 ft

Waterline or Water Service 10 ft or 5 ft

Stream, Lake, Reservoir, or Canal 100 ft

Fissure 100 ft

Cut Banks and Steep Slopes, Culverts, Ditches 10 from treatment, 20 from trench, bed, chamber, gravelless trench with no soil limiting condition; 50 ft if limiting condition; 3 ft from drip emitter lines

Driveway and pavement 5 ft

Wash and Drainage channel Floodplain and Floodway and drainage easement with more than 20 acres draining to it 50 ft

Property Line 5 ft or 50 ft if no public water system/wells will be drilled in future; if existing well, may be 5 ft as long as well is 100 ft away

Easement such as for utilities or a driveway access 5 ft

Building 10 ft

Pool 5 ft

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