Nothing in Section 1101.6 shall
prevent drains that serve either subsoil drains or
areaways of a detached building from discharging to a
properly graded open area, provided that:
- They do not serve continuously flowing springs or groundwater.
- The point of discharge is not less than 10 feet (3048 mm) from a property line.
- It is impracticable to discharge such drains to a storm drain, to an approved water course, to the front street curb or gutter, or to an alley.