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8.5.5 Diffuse Flow Requirements
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Diffuse flow shall be maintained in riparian buffers by dispersing concentrated flow prior to its entry into a buffer and reestablishing vegetation as listed below. These requirements apply to all development, including development that does not propose to impact or conduct an activity within a riparian buffer.

A. Concentrated runoff from new ditches or man-made conveyances shall be converted to diffuse flow at non-erosive velocities before the runoff enters a riparian buffer except as authorized under paragraph 8.5.10, Uses.

B. Corrective action to restore diffuse flow shall be taken as necessary and shall be designed to impede the formation of erosion gullies.

C. New stormwater conveyances including drainage ditches, roadside ditches, and stormwater BMPs shall not be allowed in or through riparian buffers except as authorized under paragraph 8.5.10, Uses.