Waters Protection Ordinance
(WPO)

¹ The can­tons shall draw up wa­ters pro­tec­tion maps and ad­just these as ne­ces­sary. The wa­ters pro­tec­tion maps shall in­dic­ate as a min­im­um:

a.

wa­ter pro­tec­tion areas;

b.

ground­wa­ter pro­tec­tion zones;

c.

ground­wa­ter pro­tec­tion areas;

d.

ground­wa­ter out­flow points, wells and re­charge in­stall­a­tions that are of sig­ni­fic­ance for wa­ter sup­ply.

² The wa­ters pro­tec­tion maps shall be ac­cess­ible to the pub­lic. The can­tons shall provide the Fed­er­al Of­fice for the En­vir­on­ment (FOEN) and neigh­bour­ing can­tons con­cerned with the wa­ters pro­tec­tion maps and their an­nu­al modi­fic­a­tions in di­git­al form.³¹