Well water as service and / or drinking water

Brunnenwasser summarizes all types of ground and spring water extracted directly from the soil. The name does not contain a quality statement. Whether the well water is qualified as process water or drinking water depends on the case-by-case examination. Basically, well water pumped from a greater depth is cleaner than ground-level occurrences.

Terms of use for well water

In accordance with the importance of clean water as usable and healthy drinking water, a strict drinking water ordinance in Germany regulates whether well water may be used as service and / or drinking water. The Federal Environment Agency defines the following points as a requirement for drinking water:

  • Any water, whether in the unchanged or prepared, that is used as a drink, for cooking and when preparing food and drinks.
  • Any water that serves the immediate care and cleansing of human body care.
  • Any water used to clean objects that touch food
  • Any water used to clean clothing and other items that are permanently in contact with the body of a person.

Well water, which was not declared as drinking water, may not be used for the mentioned tasks.

Registration, analysis and approval

The quality of the groundwater normally increases with the depth of the well. The individual layers of earth pass through and filter the groundwater. At large well depths from about twenty meters, a well water with drinking water quality is not uncommon without further filtering. This does not apply to the upper or uppermost water-bearing groundwater layer used in normal groundwater wells.

In Germany, the tapping of the groundwater in each case and regardless of the depth of feed and usually requires approval. For the intended use of groundwater as drinking water, a quality analysis is mandatory. If the well water is used only as process water, the specifications for the well water are regionally very different. Health authorities and the lower nature conservation authorities provide information.

Biological contaminants

Typical biological contaminants of well water originate from five different microorganisms: viruses, bacteria, spores of bacteria, parasites and worms. Using different methods, the well water can be cleaned of it. Filtration systems can eliminate all microorganisms, thermal disinfection all but spores and UV irradiation bacteria and viruses. The use of chlorine in the well is safe against bacteria, partly for viruses.

Chemical and mineral contaminants

Both geological chemical processes and contamination of the soil may result in residues of ammonium, iron, manganese, nitrites, nitrates and heavy metals in well water. Besides the possible contamination of the well water itself, the way of conveying water in the well is the subject of any well water analysis.

Ultimately, only the purity of the well water coming out of the well counts. Incorrect well construction or faulty pipe installations can also lead to contamination on the conveying path.

Tips & Tricks

You can carry out quality tests on your well water yourself. Many companies offer sets, mostly coupled with offered filter systems. Many test procedures are not officially recognized.

Video Board: Components Of A Typical Well Water System