*Add [[Level spreaders|flow spreading device]] or re-grade existing device back to level to promote sheet flow to the filter bed. Regrade damaged portion of the filter bed and replant. If problem persists, consider adding [[turf grasses|turf]] reinforcement devices or replace filter bed [[vegetation]] cover with stone at inlets. | *Add [[Level spreaders|flow spreading device]] or re-grade existing device back to level to promote sheet flow to the filter bed. Regrade damaged portion of the filter bed and replant. If problem persists, consider adding [[turf grasses|turf]] reinforcement devices or replace filter bed [[vegetation]] cover with stone at inlets. |