Munich's published hardness figure comes with a date, a range and a description of the area it covers. Read those details together before using one number to describe the water at your accommodation. The difference between a city summary and a result from one tap becomes clearer when the table stays intact.
The SWM quality page describes water quality as approximately the same across the city. It leaves room for the variation that SWM publishes beside its central value.
Read the date before the hardness row
The Munich analysis is marked January 2026. Its table covers the whole city. Printed page 3 reports a total-hardness median of 15.8 °dH, with bounds of 13.9 and 17.9 °dH.
January 2026 is the document's stated status date. The table does not give exact collection dates. Reading it later does not turn the values into measurements from the day you opened the file.
Keep a saved copy if you need to discuss a figure later. A note containing the document date and parameter name gives the utility something specific to identify. A cropped cell containing only a number loses both its unit and the reason it appeared in the table.
To clarify a figure, ask which analysis applies to your supply and whether newer information is available for the question you have.
Read the footnote's statistical definitions
The PDF footnote defines its central value as a median and its bounds as the 5th and 95th percentiles. SWM's accompanying quality page says the displayed minima and maxima cover 95% of measurement values. The documents explain the range differently.
Keep each explanation attributed to its document. Do not relabel the median as an arithmetic mean or the percentile bounds as absolute extremes. Neither document establishes that each building receives exactly that value at every moment.
For a comparison with another report, first ask which statistic each figure represents. Comparing one document's median with another's maximum can create an apparent difference that is partly a difference in how the figures were summarized. Preserve those column headings and footnotes in any notes you share.
The document also needs to remain attached to its place. A Munich citywide summary cannot identify the water in an unrelated town simply because both places are in Bavaria. For an accommodation outside the city, ask its supplier which report applies.
Keep total hardness and carbonate hardness separate
Carbonate hardness has a separate °KH row; total hardness uses °dH. The SWM FAQ also expresses total hardness as 2.8 mmol/l alongside 15.8 °dH.
Copy the parameter name with the unit. Different rows can describe related aspects of the same water without being interchangeable inputs. If you need a value for a particular purpose, check which parameter that purpose actually asks for before borrowing a nearby figure.
A building question needs a building record
Munich's municipal guidance distinguishes supply to the house connection from the building installation, which falls under the owners' responsibilities. It identifies property management as the first contact for quality complaints within a building.
A current property inquiry should include the address and the actual concern. A dated hardness summary cannot inspect that building's installation or establish a new result at its kitchen tap. The Munich city guide provides general travel context; keep a specific property question with the relevant supplier or building contact.
