Discharge of wastewater into private wastewater systems Authorization

If you wish to discharge commercial/industrial wastewater into a private wastewater system or sewer system, you generally require a permit.

If you want to discharge wastewater into a private wastewater system, you need a permit. Under certain conditions, the permit requirement does not apply. You apply for the permit from the responsible authority.

Public wastewater facilities are available to the general public, private facilities are available to a restricted group of users, for example companies in a chemical park.

For certain industries and activities (such as the chemical industry, paper production, metal processing, cooling water use), pollutants are to be expected in the wastewater that are not sufficiently purified in a municipal wastewater treatment plant. Requirements for this are set out in the sector-specific annexes to the Waste Water Ordinance.

In order to comply with these requirements, special measures and wastewater pre-treatment plants are required to reduce the pollutant load so that the wastewater can then be purified without harm in a public or private wastewater treatment plant.

Responsible are theNiedersächsische Landesbetrieb für Wasserwirtschaft, Küsten- und Naturschutz (NLWKN) and the lower water authorities in the administrative districts, independent cities and large independent towns.

Responsible are theNiedersächsische Landesbetrieb für Wasserwirtschaft, Küsten- und Naturschutz (NLWKN) and the lower water authorities in the administrative districts, independent cities and large independent towns.

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Approval may only be granted if

the requirements of the Wastewater Ordinance applicable to the wastewater are complied with,

the private sewage treatment plant can adequately purify the wastewater and

the wastewater is pre-treated by the discharging company in such a way that the above requirements are met.

Contradiction

You can apply for a permit to discharge wastewater into private wastewater systems at the responsible office.

You fill out the application form and submit it with all the necessary documents.

The competent authority will check your application.

If all the necessary requirements are met, your application can be approved.

You will receive a permit to discharge wastewater into private wastewater facilities.

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