All CT municipalities within an "urbanized area" are required to comply with the MS4 General Permit to discharge stormwater into CT's water bodies. The basic requirements of the permit are to:
1) Submit a Stormwater Management Plan identifying 6 minimum control measures that a municipality will undertake to prevent and/or treat polluted runoff;
2) Submit Annual Reports to DEEP indicating the progress with implementing that plan; and
3) Monitor the quality of water bodies.
The full permit is provided below.