For industrial facilities in California, your stormwater Annual Report is done via a series of 12 questions in SMARTS (see below for the questions). The annual report is required to be completed by July 15th.
Questions 1 through 6
Questions 7 through 10
Questions 11 and 12The Water Board has put together a very comprehensive guide, complete with screenshots of the steps to take. For a How-To guide on completing the Annual Report in SMARTS, access it here.