Surface water typology 2015 (LAWA)
 | Type 5 | Small coarse substrate dominated siliceous highland rivers |
 | Type 6 | Small fine substrate dominated calcareous highland rivers |
 | Type 7 | Small coarse substrate dominated calcareous highland rivers |
 | Type 9 | Mid-sized fine to coarse substrate dominated siliceous highland rivers |
 | Type 9.1 | Mid-sized fine to coarse substrate dominated calcareous highland rivers |
 | Type 9.2 | Large highland rivers |