Notification of handling and storage of substances hazardous to water

The commissioning or significant modification of installations that use or store substances hazardous to water must be notified at least six weeks in advance.

Description of the course

The water hazard classes (WGK) describe how hazardous a substance is for water and groundwater if it is released into the environment.

WGK 1 (slightly hazardous to water)

  • Lubricating greases based on mineral oil
  • Antifreeze (ethylene glycol, diluted)
  • Detergents (in low concentration)

WGK 2 (significantly hazardous to water)

  • Diesel fuel, extra light heating oil (EL)
  • Engine oil
  • Paints and varnishes
  • Solvents (toluene, xylene)

WGK 3 (highly hazardous to water)

  • Petrol, waste oil
  • Chlorinated hydrocarbons (for example: trichloroethene)
  • Plant protection products, herbicides
  • Acids and alkalis (concentrated, for example: sulphuric acid, caustic soda)

Prerequisites

Above-ground installations for liquid substances hazardous to water must be notified if their volume is

  • greater than 100,000 litres (corresponds to 100 m³) for substances of water hazard class (WGK) 1
  • greater than 1,000 litres (corresponds to 1 m³) for substances of water hazard class (WGK) 2
  • greater than 220 litres (corresponds to 0.22 m³) for substances of water hazard class (WGK) 3

Required documents

You can either send the completed notification form with attachments as a PDF by e-mail or use the online service.

Landeshauptstadt München

Referat für Klima- und Umweltschutz
Sachgebiet Wasserrecht

If you have any questions about private systems, please send us an e-mail!

Internet address

Phone number

Postal address

Landeshauptstadt München
Referat für Klima- und Umweltschutz
Sachgebiet Wasserrecht

Bayerstraße 28a
80335 München

Address

Bayerstraße 28a
80335 München

Monday, Tuesday, Wednesday, Thursday
9 am - 3 pm

Related services

Immission control licence - application

Industrial plants that cause heavy air and noise pollution or use hazardous substances require a licence.

Authorisation under immission control law - amendment

If the location, structure or operation of an installation requiring authorisation changes, this must be reported in good time.