What are one-time discharge permits, and how do I get one?
One-time Discharge/Manhole Entry permits may be issued for the disposal of contaminated groundwater and other one-time discharges into the city of Phoenix sanitary sewer system. Requests for one-time/manhole entry permits must be in writing and mailed to the P2/Commercial Program Supervisor two weeks prior to the anticipated discharge date(s). See the ‘One-time’ Discharge Permits section.