Prerequisites
- The harmfulness of the wastewater is kept as low as possible given the state of the art.
- The discharge is compatible with the requirements regarding water characteristics and other legal requirements.
- Where necessary, facilities or other installations will be constructed and operated to meet these requirements.
Documents required
Which documents you need for your application varies depending on the type and scope of your project. In a preliminary discussion with the responsible authority, you can clarify which documents are required in your case. These are usually the following documents:
- Application form
- explanatory report
- site plan (scale 1:5,000)
- Extract from the property map (scale 1:1,000)
- extract from the land register
- Proof that infiltration is not possible on site
- Property drainage plan (according to DIN 1986-100: 2016-12, including discharge points)
- detailed plan of the discharge point
Optionally, the following additional documents may be required:
- Power of attorney for applicant (if not permit holder)
- consent of other affected property owners
- data sheet throttle
- Detailed plan (with sections) throttle
- Information, representation and calculation of the required rain retention facility (including flood proof and KOSTRA rain data used)
- Assessment of the pollution of rainwater and the need for treatment (according to DWA-A 102-2)
- analysis results
Please note
Before submitting your application, you should contact the relevant authority to find out about the specific requirements.
Deadlines
There is no statutory deadline. It is advisable that you apply for permission early, usually at least three months before the start of your project. For more complex projects, it makes sense to apply earlier.
