It is illegal to release anything other than stormwater which is free of pollutants to the maximum extent practicable to a stormwater conveyance system! Stormwater conveyance systems include streets, curbs and gutter, storm drains and ditches. See Non-Stormwater Discharges below to learn about specific exemptions to these discharge prohibitions.
You may call the Stormwater Hotline for the local jurisdiction to report an illicit discharge or a potential illicit discharge. Please provide a detailed account of the incident (i.e., date, time, location, responsible party and nature of the incident) when you call to report an illicit discharge.
The following discharges are exempt from the illicit discharge prohibitions.
*Local agencies also allow occasional non-profit car wash fund raisers. Contact your local stormwater agency for more information.
**Prior to draining a swimming pool to the street, you must call the local stormwater agency for an encroachment permit. Please refer to the Pollution Prevention for Pools, Spas, and Fountains quicklink for more information on BMPs and discharge options.
Generally, all other discharges are prohibited. Please refer to the BMPs and FAQs found throughout this website and the local stormwater ordinances for more information on the local discharge requirements.