In the area operated by Vodakva, there is a lack of underground water resources of good enough quality. Therefore, drinking water is mostly made from the surface water sources (87%); the rest (13%) is from underground water. Vodakva operates 26 water treatment plants, the most important of these are: Březová (Stanovice Reservoir), Žlutice (Žlutice Reservoir), Svobodka (Lučina Reservoir), Milíkov (Mže River) and Myslivny (Myslivny Reservoir).
Most important water treatment plants
| Name of WTP | Water source | Maximum design capacity (l/s) | Construction year | Note |
|---|---|---|---|---|
| ÚV Březová | nádrž Stanovice | 650 | 1982 | reconstruction 2012 - 2016 |
| ÚV Žlutice | nádrž Žlutice | 180 | 1966 | intensification 1986 |
| ÚV Svobodka | nádrž Lučina | 135 | 1968 | intensification 1982 - 1987 |
| ÚV Milíkov | řeka Mže | 65 | 1999 | |
| ÚV Myslivny | nádrž Myslivny | 35 | 1952 | reconstruction 1997 |