SWITZERLAND · LANDSCAPE · WATER PROTECTION
Gewässerschutzbereich Au
What this layer shows
Water protection area Au under Art. 19 GSchG and Annex 4 GSchV: the usable groundwater and the margins needed to protect it. Buildings, installations, excavation and earthworks that could endanger the water need a cantonal permit here (Art. 19 para. 2 GSchG), and installations below the average groundwater level are in principle not allowed. Included: the cantons of AG, AI, AR, BE, BL, BS, FR, GE, GL, GR, JU, LU, SH, SO, SZ, TG, TI, UR, VS, ZG and ZH; cantons whose terms of use do not allow use in this app, or that do not publish the data openly, are not included. For the canton of Graubünden's data: “No warranty is given as to the correctness, accuracy, currency or completeness of the published information.”
Publisher and licence
Kantone AG/AI/AR/BE/BL/BS/FR/GE/GL/GR/JU/LU/SH/SO/SZ/TG/TI/UR/VS/ZG/ZH über geodienste.ch (Quelle: Planerischer Gewässerschutz, Kanton Graubünden, 2026), Nutzungsbedingungen der Kantone
Licence not stated by the publisher
Kantone AG/AI/AR/BE/BL/BS/FR/GE/GL/GR/JU/LU/SH/SO/SZ/TG/TI/UR/VS/ZG/ZH über geodienste.ch (Quelle: Planerischer Gewässerschutz, Kanton Graubünden, 2026), Nutzungsbedingungen der Kantone
Where the data comes from
WFS · geodienste.ch
Merestone asks this service live for the area on screen. Nothing is copied or stored beyond a short cache.
Facts shown for each feature
Cantonal name · Canton
In these presets
Water and natural hazards
Groundwater protection zones S1 to S3, Sh and Sm, protection areas, water protection areas Au and Ao and inflow areas, river space, then the hazard and hazard indication maps, the natural event register and seismic subsoil classes: with bathing waters and the ecomorphological state of the rivers.