R317-801-4. General Permit SSO Reporting Requirements

4.1 SSO Reporting. SSOs shall be reported as follows: (1) A Class 1 SSO shall be reported orally within 24 hrs and with a written report submitted to the DWQ within five calendar days. Class 1 SSO's shall be included in the annual USMP report. (2) Class 2 SSOs shall be reported on an annual basis in the USMP annual report. 4.2 Annual Report. A permittee shall submit to DWQ a USMP annual operating report covering information for the previous calendar year by April 15 of the following year.