The bottom is at the groundwater level, so the amount of water depends on current hydrological conditions.

They began monitoring hydrological conditions and lake levels in 1918.

Construction of the station will be made difficult by adverse hydrological conditions.

The hydrological conditions in these areas likely were controlled by relatively uniform ice thickness and gentle topography.

The impacts stem from the changed hydrological conditions owing to the installation and operation of the scheme.

Therefore, there needs to be a shift in local hydrological conditions.

But it confirms that some resident aquatic species will be affected by the change in hydrological conditions.

The explosions changed the hydrological condition of the tunnel.

However problems with building an escalator tunnel in tough hydrological conditions prevented it to be opened.

It is a geomorphological concept that describes hydrological conditions in lotic systems.