Sewer systems would notify downstream users about water discharges

Publicly owned treatment works and public or private domestic sewer system owners must promptly notify potentially affected downstream users after reporting a discharge to the agency. The notice covers the public, Tribal governments, and drinking water facilities that may be affected by the discharge. The owner must first notify the agency as required for a discharge that may pollute state waters. The owner must use the most efficient available communication method, such as in-person notice, a phone call, radio, social media, or a webpage. The notice must include the discharge date and time, the material released, a warning about possible public health risks, and the permittee's contact information. Signs must be posted at all affected public-use areas in the same jurisdiction, or notice must be given to the government entity responsible for those areas. Notice must be provided promptly after the owner notifies the agency of the discharge.

The environmental agency must provide guidance on giving timely discharge notices. The guidance applies to notices required under the water-pollution notification section. The guidance must include methods and protocols for providing notice on time.