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Logo Noorderzijlvest Water Authority
Logo Noorderzijlvest Water Authority

Enough water in every season

We work on providing a good water supply and drainage. We reach agreements about water levels. And we keep a close eye on water levels.

Water levels and water level regulation plans

Our work on water ranges from high sandy soils in Drenthe to lower-lying areas in Groningen. We use different levels to maintain the water level at the agreed level.

Winter and summer levels

Water levels vary between winter and summer, because of the demand for water.

Maintenance and inspection of watercourses

Clean ditches contribute to a good water supply and drainage. That is why maintenance is needed every year. We check ditches that play an important role in controlling water in the region.

Waterway management and obstructions

We manage waterways in our region: sufficient depth and width, safe and clean. Obstructions may occur.

Subsidence

Gas is located in a layer of rock at a depth of 3 kilometres. All soil layers above this rock layer are sinking due to gas extraction.

Water retention

Water can be scarce at times. For example, during hot, dry summers, which are becoming more common. To have enough water in every season, more measures are needed to retain water in the area for longer.

Pumps, weirs, and locks

With the help of technical structures and installations, we can control the water in our area. Without pumping stations, weirs, and locks, this would be impossible. So, it is essential they continue to work.

Groundwater

Groundwater is all the water below the surface of the ground in the subsoil. Groundwater was once rainwater. Rainwater sinks into the ground until it can go no deeper.