The Supply Area
RheinEnergie supplies Cologne, Pulheim, Frechen, Bergisch Gladbach and Brühl with drinking water. The supply is guaranteed by eight waterworks and two separate drinking water networks (for the left and right-hand side of the Rhine).
The water for Frechen and south Pulheim originates from the RWE waterworks in Dirmerzheim. We also function as a preliminary supplier and provide Brühl and Bergisch Gladbach with drinking water and manage the local supply of drinking water for > BELKAW.
The supply area displayed on the map below is approximately 520 square kilometres.
The supply of industrial water to the area located on the left bank of the Rhine is carried out via the interconnected wells Glanzstoff and Niehler Bogen, and on the right bank via the waterworks Stammheim South and North. The groundwater or bank filtrate pumped at these sites is provided to numerous companies as non-purified water.
From the waterworks to your taps
Cologne bay provides excellent conditions for the production of drinking water and industrial water. Since it is withdrawn from groundwater and bank filtrate. Groundwater is a combination of rain which seeps into the ground and surface water from areas around Cologne. Bank filtrate is a mixture of Rhine water and groundwater from close to the river's banks. It seeps into the groundwater through the permeable soil layers of the Rhine. RheinEnergie extracts both types of water in well systems from where the water is transported to the waterworks.
The water which eventually reaches the waterworks has been naturally prefiltered, since it has been seeping through the various soil and rock layers for many weeks. We filter it once more at the waterworks via activated carbon filtration. The water is then pumped into the drinking water network. We have to use additional treatment processes for water from the right bank of the Rhine, since it has different properties.
Basically: Drinking water is and should remain a natural product. Due to the exceptional quality of the raw water, we have not used any disinfection methods since the early 1990s, for example the introduction of chlorine. Regular measurements and analyses ensure the perfect hygienic condition of our most precious commodity.
> Quality, Hardness
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