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Water supply in Braunschweig: extraction, treatment and distribution of drinking water
The water supply in Braunschweig is mainly provided by the Stadtentwässerungsbetriebe Braunschweig (SE|BS). The waterworks is located at Bienroder Weg 48a in the Braunschweig urban area. Most of the drinking water for Braunschweig comes from groundwater. Several deep wells are operated to provide sufficient water to supply the population. In addition, surface water reserves can also be used.
Braunschweig’s drinking water comes almost exclusively from the natural water resources of the Harz Mountains. The extracted groundwater or surface water is treated in the SE|BS waterworks. The exact treatment processes can vary depending on demand and water quality. The water is extracted from a total of almost 70 wells using pumps, treated according to strict regulations and temporarily stored in tanks. It is then mixed with the resin water. However, only slightly more than three percent of the water distributed in Braunschweig is groundwater. The aim is to bring the water up to a high hygienic standard. The treated drinking water is distributed throughout Braunschweig via an extensive network of pipes.


The water supply in Brunswick is usually provided through a water meter in each household or business. Charges for water supply are set by the Braunschweig Municipal Drainage Company and are billed based on water consumption.
Water treatment and drinking water quality in Braunschweig
Water treatment and drinking water quality in Braunschweig
The water supply in Braunschweig is mainly ensured by the Stadtentwässerungsbetriebe Braunschweig (SE|BS). The drinking water for Braunschweig comes largely from the natural water resources of the Harz Mountains and is obtained from several deep wells. Surface water reserves can also be used to ensure an adequate supply of water.
The extracted groundwater or surface water is treated in the SE|BS waterworks in accordance with strict regulations. The exact treatment processes vary depending on demand and water quality. The water is extracted from nearly 70 wells with the help of pumps, treated and temporarily stored in tanks before being mixed with the resin water. Although only slightly more than three percent of the water distributed in Braunschweig is groundwater, the goal is to bring the water up to a high hygienic standard.
The treated drinking water resources are distributed through an extensive network of pipes in Brunswick. This network includes main lines supplying the various parts of the city as well as smaller lines directly supplying households and businesses. To ensure the quality of the drinking water, regular monitoring is carried out in accordance with the legal specifications and requirements of the Drinking Water Ordinance. The SE|BS conduct extensive examinations and tests to ensure the purity and safety of the water.
The water reservoirs in Braunschweig are the Ecker and Granetal dams, at each of which a waterworks is operated for treatment. Due to the difference in altitude between the Harz Mountains and Braunschweig, no pumps are required for transport. The water flows downhill in an environmentally friendly manner in two pipes and arrives directly at two transfer stations, from where it is distributed to the citizens.
The water supply in Braunschweig is usually provided by a water meter in each household or business. Charges for water supply are set by the Braunschweig Municipal Wastewater Utility and are based on water consumption.
In terms of water hardness, this ranges from 1 to 3 °dH in Braunschweig, depending on where you live, which is classified as very soft water. The exact degree of hardness can be requested from the water suppliers or taken from the annual statement. The origin of the tap water in Braunschweig lies mainly in the natural water resources of the Harz Mountains, in particular the Eckertal Reservoir and the Granetal Reservoir. A small part of the drinking water comes from wells and is used to cover consumption peaks.
The quality of Braunschweig’s drinking water is monitored through regular analyses and tests by the laboratory of the water supplier BS|ENERGY and the Harzwasserwerke. The results show that the drinking water falls below all specified limits of the Drinking Water Ordinance and has a low nitrate content. Thus, the water quality in Braunschweig can be classified as very high.
Soft water offers several advantages to the residents of Braunschweig, such as lower limescale deposits in household appliances, a better taste and a more environmentally friendly use of cleaning agents. For consumers who have hard water, there is the option of converting it to soft water with the help of a water softener. By using a water softener, minerals such as calcium and magnesium are removed and replaced with sodium ions.
Overall, it can be stated that water treatment in Braunschweig is carried out in compliance with professional standards and regulations to ensure high quality drinking water.