Section 301.442  Wet Weather Point Source

Wet Weather Point Source means any discernible, confined and discrete conveyance from which pollutants are, or may be, discharged as the result of a wet weather event. Discharges from wet weather point sources shall include only: discharges of stormwater from a municipal separate storm sewer as defined at 40 CFR 122.26(b)(8); stormwater discharge associated with industrial activity as defined at 40 CFR 122.26(b)(14); discharges of stormwater and sanitary wastewaters (domestic, commercial, and industrial) from a combined sewer overflow; or any other stormwater discharge for which a permit is required under Section 402(p) of the Clean Water Act.  A stormwater discharge associated with industrial activity that is mixed with process wastewater shall not be considered a wet weather point source.

(Source:  Added at 23 Ill. Reg. 11277, effective August 26, 1999)