The link below will take you to the Philadelphia Water Department's RainCheck website. Many of these documents are applicable to Clean Streams, Clean Water contractors, but interested homeowners may also find them useful. They provide the guidelines and specifications for each Clean Streams, Clean Water feature in addition to other reference materials.
Click to go to the Philadelphia Water Departments' Raincheck website for Contactor Documents. Please note, these documents are meant as a resource and are not applicable to sign up for Ambler's Clean Stream, Clean Water Program.