Legal basis
How to contact us:
Subject area data management
Sewer operation service
Service hotline
You have questions? Call us: from any network, without an area code. Authorities number 115: Monday to Friday, 8 a.m. to 6 p.m. You can usually reach the authorities number 115 at fixed network tariffs and thus free of charge via flat rates. Sign language telephone: Monday to Friday, 8 a.m. to 6 p.m.