http://www.epa.gov/earth1r6/6en/w/pw.htm
that should answer your question, I have been pw since 1984..
Its clear that if water can get to us waters your in complience.
Please no off property discharge without proper license and permits.
call the enforcement divsion in your area, please dont refer to your local goverment agency such as water district or sanitary.
Epa will direct you to yoru local enforcement div, often a county or city dept if they exist.
often and engineer in building and zoning can tell you what has not met CWA requirements by law.
If you want to talk, feel free to call.