A. All drainage facilities shall comply with the City of Phoenix Stormwater Policies and Standards Manual.

B. Existing drainage facilities. No person shall alter any natural drainage course or existing drainage facility in such a way as to damage or endanger by flooding, erosion, or any other means, any public or private property or improvements.

C. Disposal. All drainage facilities shall be designed to carry surface waters to the nearest practical street storm drain or natural watercourse approved by the Planning and Development Director and any other governmental agency having jurisdiction as a safe place to deposit such waters.

D. Erosion prevention. Adequate provision shall be made to prevent surface waters from damaging the face of an excavation or fill. All slopes shall be protected from surface water runoff from above by berms, swales, walls, stabilized slope treatment, or other protection as approved by the Planning and Development Director.

E. Terrace drains. All swales or ditches on drainage terraces shall be graded to provide suitable drainage and designed to prevent erosion and provide durability.

*This setback is not the setback referred to in the Zoning Ordinance. Greater setback distances may be required by the Zoning Ordinance.