There are numerous guidelines relating to waste water drainage.
For example, your waste water must be treated before it is discharged into surface water. The municipal zoning plans provide 2 options:
- One option is that you have a sewer connection, and your waste water goes through the sewer system to a sewage treatment plant.
More about sewer connections
- The second option is that you arrange your own treatment with an individual waste water disposal system (IWDS).
More on individual waste water treatment
Separate drainage of rainwater and waste water
For a new construction or major renovation, you are required to separate your rainwater and waste water on your own plot. The rainwater must be collected in a rainwater tank and reused.