The reservation by areas is as follows:
- Eastern Cantabrian is 91.8%
- Western Cantabrian 84.7%
- Miño-Sil at 83.2%
- Galicia Costa 91.4%
- Internal basins of the Basque Country at 95.2%
- Duero 56.2%
- 36.6% cut
- Guadiana at 37.5%
- Red, Odiel and Piedras 65.1%
- Guadalete-Barbate at 45.4%
- Guadalquivir at 36.2%
- Andalusian Mediterranean Basin at 47.9%
- Safe at 28.3%
- Juice at 36.6%
- Ebro at 70.0%
- Inland basins of Catalonia at 62.9%
Precipitation has been abundant in the Atlantic slope and has significantly affected the Mediterranean slope. The maximum has been produced in Vigo with 194.3 mm (194.3 l / m²).
The situation of the basins, in cubic hectometers, is detailed in the following table:
Ministry for Ecological Transition