back to Stormwater Phase II FAQ list Why is my town regulated?
• The system discharges at one or more a point sources, • The drainage system is a separate storm sewer system (not designed to carry combined storm water and sanitary waste water), • The drainage system is operated by a public body, • The drainage system discharges to the Waters of the United States or to another MS4, AND • The drainage system is located in an “Urbanized Area”. In the Phase II Rule, EPA uses the US Bureau of Census definition of Urbanized Area (UA). The mapping of Urbanized Areas is based on the most recent federal census data. This definition is uniform nationally and has a statistical basis. back to Stormwater Phase II FAQ list My town has only a little bit of Urbanized Area. What do I do? Towns partially in a UA need to comply with Phase II in the UA. If the population in your UA area is less than 2000 you can apply to EPA for a waiver. Otherwise, you may find it helpful or economical to combine efforts with the neighboring town which has to comply also with Phase