What can or cannot be discharged into storm drains?
Allowable Discharges The following discharges are allowed, however, every effort should be made to reduce discharges to the storm drain system. • Individual residential car washing discharge. • Uncontaminated pumped groundwater discharge. • Spring discharge. • Air conditioning condensation discharge. • Lawn watering discharge. • Rising groundwater discharge. • Diverted stream flow discharge. • Flows from riparian habitats and wetland discharge. • De-chlorinated swimming pool discharge. • Uncontaminated groundwater infiltration discharge. • Water from crawl space pumps. • Irrigation water discharge (potable). • Fountain drain discharge. • Footing drain discharge. • Water line flushing from existing (not new) water lines. Unlawful Discharges • ANYTHING ELSE! • Discharges of wash water from the cleaning or hosing of impervious surfaces in municipal, industrial, commercial, and residential areas including parking lots, streets, sidewalks, driveways, patios, plazas, work yards and outdoor e
