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Water quality in Switzerland
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- The Water Supply of the City of Thun
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- Tap Water in Switzerland: Quality and Controls
- Drinking Water in Switzerland
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How good is the water quality in Switzerland?
It happens that consumers in Switzerland turn on their tap and the tap water shows poor quality. The reasons for this and how good tap water is in Switzerland are discussed in this article.
What speaks in favor of using tap water?
How good is the water quality in Switzerland?
It happens that consumers in Switzerland turn on their tap and the tap water shows poor quality. The reasons for this and how good tap water is in Switzerland are discussed in this article.
What speaks in favor of using tap water?
✔ Most controlled food in Switzerland (Drinking Water Limits)
✔ Water suppliers work to meet all high standards
✔ Generally, the tap water quality is very good
What speaks against the immediate use of tap water?
⊗ Uncertainty about contaminated, unhealthy drinking water due to pesticides & nitrates
⊗ Uncertainty about the condition of the pipes (corroded pipes, lead pipes)
⊗ Contaminated tap water due to poor installation or filtration systems
3 Tips for handling drinking water:
- The suppliers test the water sources and Swiss drinking water, but only up to the handover point of the respective operators. In residential buildings, they are responsible for the water quality within the house.
- Let the cold tap water run for a while before using it. This will flush out any potentially contaminated water from the pipes and bring fresh supplier water in.
- Avoid filtering tap water if possible. Improper use of filters in private homes can lead to contaminated water.
The average water consumption per Swiss citizen is 170 liters per day. This drinking water is used for everyday activities such as cooking, washing, and, of course, drinking. It must be free from pathogenic germs and pose no risk to humans or technical systems. Over 2000 water suppliers provide drinking water to the population in Switzerland.
Even though issues such as pesticides, hygiene indicators, and nitrate are frequently discussed in the media, the general water quality is very high. Often, the water can be used without significant treatment. If treatments are necessary, chlorine, UV irradiation, or filtration methods are used.
The most common causes of contaminated or poor-quality tap water often lie in the water pipes of the affected buildings themselves and are therefore not the responsibility of the suppliers.
✔ Most controlled food in Switzerland (Drinking Water Limits) ✔ Water suppliers work to meet all high standards ✔ Generally, the tap water quality is very goodWhat speaks against the immediate use of tap water?
- ⊗ Uncertainty about contaminated, unhealthy drinking water due to pesticides & nitrates
- ⊗ Uncertainty about the condition of the pipes (corroded pipes, lead pipes)
- ⊗ Contaminated tap water due to poor installation or filtration systems
3 Tips for handling drinking water:
- The suppliers test the water sources and Swiss drinking water, but only up to the handover point of the respective operators. In residential buildings, they are responsible for the water quality within the house.
- Let the cold tap water run for a while before using it. This will flush out any potentially contaminated water from the pipes and bring fresh supplier water in.
- Avoid filtering tap water if possible. Improper use of filters in private homes can lead to contaminated water.
The average water consumption per Swiss citizen is 170 liters per day. This drinking water is used for everyday activities such as cooking, washing, and, of course, drinking. It must be free from pathogenic germs and pose no risk to humans or technical systems. Over 2000 water suppliers provide drinking water to the population in Switzerland.
Even though issues such as pesticides, hygiene indicators, and nitrate are frequently discussed in the media, the general water quality is very high. Often, the water can be used without significant treatment. If treatments are necessary, chlorine, UV irradiation, or filtration methods are used.
The most common causes of contaminated or poor-quality tap water often lie in the water pipes of the affected buildings themselves and are therefore not the responsibility of the suppliers.
Test your well water
Many homeowners trust well water, which is generally considered to be particularly pure and clear. In fact, the layers of soil through which the water seeps already act as an effective filter. Many pollutants are thus already removed from the groundwater in a natural way.However, water from household wells often does not meet the requirements of drinking water regulations. There are various reasons for this:In many regions, pollutants enter the water cycle through agriculture, environmental pollution, or fertilizers. Furthermore, contamination can occur due to defective filters or the entry of contaminated water into the well water. The material of the well pipes can also release pollutants into the water.
✔ With a well water test, possible pollutants can be identified quickly.
With umweltcheck.ch well water tests, you can reliably determine important parameters. This helps you assess whether your well water is suitable for drinking. Thanks to the clear and detailed results, you can see at a glance whether the water in your submitted water sample is of sufficient quality and whether it complies with the guidelines and limits of drinking water regulations.
Well water is generally considered to be clear and pure. The layers of soil already act as an effective filter through which the water seeps down into the groundwater. However, many wells do not meet hygienic requirements.
Possible reasons for contaminated well water:
- Natural occurrence of heavy metals in the soil layers
- Insufficient cover of the well
- Contaminated sites from industry, e.g. residues of chemicals, gasoline or oil
- Dirty pumps, water filters of pipes
- Outdated well system (shaft well)
- Unsuitable extraction points (hoses)
- Weather situation (flooding, rainfall)
- Irregular maintenance and inspection of the well
- Obsolete pipes and lines - heavy metals can lurk here!
Chemical analysis - an advantage for your own well!
You can have a multitude of chemical values determined in our laboratory. These include nitrate, iron or manganese. The parameter nitrate is moving into focus more and more, as industry and agriculture runoff can lead to considerable amounts entering the soil and groundwater. The current situation regarding nitrate in water leads to lively discussions. The more nitrate or other substances pollute the water (groundwater), the greater the effort involved in obtaining clean drinking water or well water through filtration and treatment.
Both iron and manganese are less of a health risk (significant amounts would have to be consumed here). However, technical systems can be impaired. Optical pollution (brown or black deposits and spots) are also a possible consequence of increased manganese or iron values. Investigate specific chemical parameters and relevant toxic heavy metals for safe and pure well water.
Wells in Switzerland
There are around 200 public fountains in the city of Basel alone. Public fountains are also popular in Zurich - more than 1200 fountains are available to the public here. Then there are numerous private wells.
If you have your own well, you should always be informed about the water quality. While public drinking fountains are regularly checked by the gemeinde, it is important for the private well owner to take care of the water quality in their own well.
A water test can provide information about heavy metal pollution, nutrient input and other important parameters.
Sources (in German):
https://www.zuerich.com/de/besuchen/1200-brunnen
https://de.wikipedia.org/wiki/Basler_Brunnen
https://naturwissenschaften.ch/service/news/117044-grundwasser-in-der-schweiz-ist-unter-druck