What is allowed in the storm sewer?
Unless identified as a significant source of pollutants to the States’ waters, the following are not prohibited from entering the storm sewer system as long as they are identified and control measures are developed to minimize the impact of such sources: – Water line flushing – Landscaper irrigation – Diverted stream flows – Rising groundwaters – Uncontaminated groundwater infiltration to separate storm sewers – Uncontaminated pumped groundwater – Discharges form potable water sources – Foundation Drains- Air conditioning condensate – Irrigation water – Springs – Water from crawl space pumps – Footing drains – Lawn watering – Individual residential vehicle washing (see “How You Can Help”) – Flows form riparian habititats and wetlands – Dechlorinated swimming pool discharges – Street wash waters – Discharges or flows from emergency fire fighting activities EPA’s NPDES Frequently Asked Questions
