An outfall is a point where collected and concentrated surface and stormwater runoff is discharged from a pipe system or culvert. The City has an inventory of over 900 outfalls with approximately 378 of those listed as “major.” A Major outfall is defined by the NPDES MS4 permit as a 36” in diameter or larger pipe, or an outfall that drains an area larger the 50 acres. The maintenance goal for outfalls is to inspect all of the major outfalls every year. Outfalls that need maintenance are cleaned by in-house resources and contractors.
Inspect and Maintain Outfalls