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Private sewage system
If you live outside the municipal sewage system, you need a private sewage system. It must be properly built, well maintained, and inspected to protect the environment.
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Please note that all forms, digital applications (e-services) and some linked websites are currently in Swedish. Contact Citizen Service if you need help in English.
When is a permit or notification required?
A permit or notification is required for a private wastewater system. You must always contact the Environment and Building Unit before building a new sewage system or making changes to an existing one.
If the application is complete, you will normally receive a decision within six weeks. A fee is charged for the processing of the application.
Protection levels and requirements
All sewage systems must treat wastewater in a way that protects people and the environment. The Environment and Building Unit decides which protection level applies to your property.
The purpose of the protection levels is to reduce the risk of eutrophication and pollution of our watercourses.
Technical solutions
There are several ways to treat wastewater outside the municipal network. The most suitable solution depends on the conditions of the property and the applicable protection level. More information is available at avloppsguiden.se.
Common solutions include infiltration or sand filters, where the water is purified in the ground. There are also technical systems such as small treatment plants and sealed tanks. In some cases, a dry toilet or composting toilet may be an alternative. For greywater only, a special greywater system can be built.
Certificate of completion
When your new system is ready for use, you must submit a certificate of completion to the municipality. This confirms that the work has been carried out according to the regulations.
Operation and maintenance
Once installed, the system must be properly maintained. A septic tank must be emptied at least once a year, and only the municipality or its contractor is allowed to carry out the emptying. Your system must be sealed, correctly located, and in good condition to avoid contamination of drinking water or nearby lakes and watercourses.
Inventory, supervision and inspection
The Environment and Building Committee is responsible for the supervision of private wastewater systems.
Taking a system out of use
If you no longer plan to use your sewage system, you must first contact the Environment and Building Committee. The system must be emptied one final time and disconnected from the house. The septic tank can then be filled in or removed, and the land restored. The work must be documented with photos and a written report. Once approved by the municipality, the system will be removed from the emptying register.
FORMS
Contact
Environment and building unit
E-mail: mob@boden.se
Phone: +46 921 620 00