Waiver request from the minimum orifice size

PhillyRiverInfo.org has moved!
To learn more about Philadelphia's watersheds and how PWD is protecting and
improving our local waterways, visit http://www.PhillyWatersheds.org.
To submit a new development project application to the Philadelphia Water
Department for review, check on the status of an existing application, or find out
more information about the Stormwater Regulations, please visit
If you have any questions, please contact Stormwater Plan Review at 215-6856387 or email PWD.PlanReview@phila.gov