8-526.A. Evaluation Required. Any development or activity proposal in an alluvial fan area shall evaluate the site to determine the potential for flash flooding and mud flows or debris flows. Correction of adverse conditions through engineered design and construction may be an acceptable mitigation technique if supported by proper technical evidence. This may include channelization, diversion dikes, debris catchment basins, special foundation and other means.

8-526.B. Prohibited Practices. Disturbance in the drainage basin above the fan shall not be permitted without first evaluating the effect on runoff and stability of the fan.