How hard is the water in Luterbach?

Einwohnergemeinde Luterbach publishes a total hardness of 23.8 °fH for the supply zone Luterbach — that corresponds to 13.3 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2025, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Luterbach?

Einwohnergemeinde Luterbach publishes a nitrate value of 9.7 mg/l for the supply zone Luterbach. The statutory parametric value is 40 mg/l; the measured value represents 24 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Who supplies the drinking water in Luterbach?

Einwohnergemeinde Luterbach. The values shown here come from the supply zone Luterbach and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.

Drinking water in Luterbach

7 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. To determine the exact match, look up the postcode.

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.

< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.

Luterbach

Einwohnergemeinde Luterbach

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

13.3 °dH

Hardness range medium

Key values Luterbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	9.7 mg/l	40 mg/l	24 %	Mean · Luterbach
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Luterbach
Sulphate	10.12 mg/l	—	—	Mean · Luterbach

Show all recorded parameters (17 — most recent value per parameter)

Microbiology (3)

Microbiology – Luterbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	2 KBE/ml	300 1/ml	—	Mean · Luterbach
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Luterbach
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Luterbach

Chemical parameters (2)

Chemical parameters – Luterbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0.04 mg/l	1.5 mg/l	3 %	Mean · Luterbach
Nitrate	9.7 mg/l	40 mg/l	24 %	Mean · Luterbach

Metabolites (2)

Metabolites – Luterbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chlorothalonil metabolite R417888	0.03 µg/l	0.1 µg/l	30 %	Mean · Luterbach
Chlorothalonil metabolite R471811	0.23 µg/l	0.1 µg/l	230 % Mean above the parametric value	Mean · Luterbach

Annual means and medians are not individual measured values, but the parametric values apply per sample. If a mean lies above it, at least one individual sample was above it — the mean does not say how many, or by how much. That is why this is not reported here as an exceedance of the parametric value. What counts remains the water supplier's publication, which each row links to.

Indicator parameters (6)

Indicator parameters – Luterbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	9.22 mg/l	—	—	Mean · Luterbach
Conductivity (25 °C)	470 µS/cm	—	—	Mean · Luterbach
pH	7.3	—	—	Mean · Luterbach
Sulphate	10.12 mg/l	—	—	Mean · Luterbach
Temperature	12 °C	—	—	Mean · Luterbach
Turbidity	0.18 TE/F	—	—	Mean · Luterbach

Further parameters (4)

Further parameters – Luterbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	91.5 mg/l	—	—	Mean · Luterbach
Dissolved organic carbon (DOC)	0.55 mg/l	—	—	Mean · Luterbach
Magnesium	9.4 mg/l	—	—	Mean · Luterbach
Total hardness	23.8 °fH	—	—	Mean · Luterbach

Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.

Source: https://trinkwasser.ch/de/versorger/787/einwohnergemeinde-luterbach/3499/luterbach · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 4542

Show 6 more supply zones

4542, Auslauf Keller Stift Schlierbach

WV Gruppenwasserversorgung Kremstal

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 25/03/2024. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Water hardness

17.7 °dH

Hardness range hard

Key values 4542, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	28 mg/l	50 mg/l	56 %	Single value · 4542, Auslauf Keller Stift Schlierbach
Sulphate	10 mg/l	250 mg/l	4 %	Single value · 4542, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4542, Auslauf Keller Stift Schlierbach

Show all recorded parameters (11 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – 4542, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	28 mg/l	50 mg/l	56 %	Single value · 4542, Auslauf Keller Stift Schlierbach

Indicator parameters (5)

Indicator parameters – 4542, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	8,1 mg/l	200 mg/l	4 %	Single value · 4542, Auslauf Keller Stift Schlierbach
Conductivity (25 °C)	551 µS/cm	2,500 µS/cm	—	Single value · 4542, Auslauf Keller Stift Schlierbach
pH	7,4	6,5–9,5	—	Single value · 4542, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4542, Auslauf Keller Stift Schlierbach
Sulphate	10 mg/l	250 mg/l	4 %	Single value · 4542, Auslauf Keller Stift Schlierbach

Further parameters (5)

Further parameters – 4542, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	94,2 mg/l	400 mg/l	24 %	Single value · 4542, Auslauf Keller Stift Schlierbach
Carbonate hardness	16,6 °dH	—	—	Single value · 4542, Auslauf Keller Stift Schlierbach
Magnesium	19,3 mg/l	150 mg/l	13 %	Single value · 4542, Auslauf Keller Stift Schlierbach
Potassium	1,9 mg/l	50 mg/l	4 %	Single value · 4542, Auslauf Keller Stift Schlierbach
Total hardness	17,7 °dH	—	—	Single value · 4542, Auslauf Keller Stift Schlierbach

Source: https://www.trinkwasserinfo.at/datenbank?no_cache=1&tx_abatrinkwdb_pi1_anlagenid=9171000&tx_abatrinkwdb_pi1_plz=4542&tx_abatrinkwdb_pi1_suche=1&cHash=d22a967c0d033a2f378e006cdda72cc6 · 2024-03-25 · 2024-03-25 · retrieved on 08/08/2026

Postcodes in this zone: 4542

4552, Auslauf Keller Stift Schlierbach

WV Gruppenwasserversorgung Kremstal

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

17.7 °dH

Hardness range hard

Key values 4552, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	28 mg/l	50 mg/l	56 %	Single value · 4552, Auslauf Keller Stift Schlierbach
Sulphate	10 mg/l	250 mg/l	4 %	Single value · 4552, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4552, Auslauf Keller Stift Schlierbach

Show all recorded parameters (11 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – 4552, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	28 mg/l	50 mg/l	56 %	Single value · 4552, Auslauf Keller Stift Schlierbach

Indicator parameters (5)

Indicator parameters – 4552, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	8,1 mg/l	200 mg/l	4 %	Single value · 4552, Auslauf Keller Stift Schlierbach
Conductivity (25 °C)	551 µS/cm	2,500 µS/cm	—	Single value · 4552, Auslauf Keller Stift Schlierbach
pH	7,4	6,5–9,5	—	Single value · 4552, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4552, Auslauf Keller Stift Schlierbach
Sulphate	10 mg/l	250 mg/l	4 %	Single value · 4552, Auslauf Keller Stift Schlierbach

Further parameters (5)

Further parameters – 4552, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	94,2 mg/l	400 mg/l	24 %	Single value · 4552, Auslauf Keller Stift Schlierbach
Carbonate hardness	16,6 °dH	—	—	Single value · 4552, Auslauf Keller Stift Schlierbach
Magnesium	19,3 mg/l	150 mg/l	13 %	Single value · 4552, Auslauf Keller Stift Schlierbach
Potassium	1,9 mg/l	50 mg/l	4 %	Single value · 4552, Auslauf Keller Stift Schlierbach
Total hardness	17,7 °dH	—	—	Single value · 4552, Auslauf Keller Stift Schlierbach

Source: https://www.trinkwasserinfo.at/datenbank?no_cache=1&tx_abatrinkwdb_pi1_anlagenid=9171000&tx_abatrinkwdb_pi1_plz=4552&tx_abatrinkwdb_pi1_suche=1&cHash=068a5fab27defb4d6e71751316f16503 · 2024-03-25 · 2024-03-25 · retrieved on 08/08/2026

Postcodes in this zone: 4542

4553, Auslauf Keller Stift Schlierbach

WV Gruppenwasserversorgung Kremstal

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

19.2 °dH

Hardness range hard

Key values 4553, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	27 mg/l	50 mg/l	54 %	Single value · 4553, Auslauf Keller Stift Schlierbach
Sulphate	11 mg/l	250 mg/l	4 %	Single value · 4553, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4553, Auslauf Keller Stift Schlierbach

Show all recorded parameters (11 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – 4553, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	27 mg/l	50 mg/l	54 %	Single value · 4553, Auslauf Keller Stift Schlierbach

Indicator parameters (5)

Indicator parameters – 4553, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	8,6 mg/l	200 mg/l	4 %	Single value · 4553, Auslauf Keller Stift Schlierbach
Conductivity (25 °C)	513 µS/cm	2,500 µS/cm	—	Single value · 4553, Auslauf Keller Stift Schlierbach
pH	7,5	6,5–9,5	—	Single value · 4553, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4553, Auslauf Keller Stift Schlierbach
Sulphate	11 mg/l	250 mg/l	4 %	Single value · 4553, Auslauf Keller Stift Schlierbach

Further parameters (5)

Further parameters – 4553, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	103 mg/l	400 mg/l	26 %	Single value · 4553, Auslauf Keller Stift Schlierbach
Carbonate hardness	17,1 °dH	—	—	Single value · 4553, Auslauf Keller Stift Schlierbach
Magnesium	20,7 mg/l	150 mg/l	14 %	Single value · 4553, Auslauf Keller Stift Schlierbach
Potassium	1,4 mg/l	50 mg/l	3 %	Single value · 4553, Auslauf Keller Stift Schlierbach
Total hardness	19,2 °dH	—	—	Single value · 4553, Auslauf Keller Stift Schlierbach

Source: https://www.trinkwasserinfo.at/datenbank?no_cache=1&tx_abatrinkwdb_pi1_anlagenid=9171000&tx_abatrinkwdb_pi1_plz=4553&tx_abatrinkwdb_pi1_suche=1&cHash=c73048762981a17829e60099c7bcd326 · 2026-03-19 · 2026-03-19 · retrieved on 08/08/2026

Postcodes in this zone: 4542

4553, Netzauslauf Verbandsgebäude

WV Gruppenwasserversorgung Kremstal

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

18 °dH

Hardness range hard

Key values 4553, Netzauslauf Verbandsgebäude
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	26,6 mg/l	50 mg/l	53 %	Single value · 4553, Netzauslauf Verbandsgebäude
Sulphate	10,4 mg/l	250 mg/l	4 %	Single value · 4553, Netzauslauf Verbandsgebäude
Sodium	3,2 mg/l	200 mg/l	2 %	Single value · 4553, Netzauslauf Verbandsgebäude

Show all recorded parameters (11 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – 4553, Netzauslauf Verbandsgebäude
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	26,6 mg/l	50 mg/l	53 %	Single value · 4553, Netzauslauf Verbandsgebäude

Indicator parameters (5)

Indicator parameters – 4553, Netzauslauf Verbandsgebäude
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	7,6 mg/l	200 mg/l	4 %	Single value · 4553, Netzauslauf Verbandsgebäude
Conductivity (25 °C)	524 µS/cm	2,500 µS/cm	—	Single value · 4553, Netzauslauf Verbandsgebäude
pH	7,5	6,5–9,5	—	Single value · 4553, Netzauslauf Verbandsgebäude
Sodium	3,2 mg/l	200 mg/l	2 %	Single value · 4553, Netzauslauf Verbandsgebäude
Sulphate	10,4 mg/l	250 mg/l	4 %	Single value · 4553, Netzauslauf Verbandsgebäude

Further parameters (5)

Further parameters – 4553, Netzauslauf Verbandsgebäude
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	95,9 mg/l	400 mg/l	24 %	Single value · 4553, Netzauslauf Verbandsgebäude
Carbonate hardness	15,9 °dH	—	—	Single value · 4553, Netzauslauf Verbandsgebäude
Magnesium	20,3 mg/l	150 mg/l	14 %	Single value · 4553, Netzauslauf Verbandsgebäude
Potassium	1,3 mg/l	50 mg/l	3 %	Single value · 4553, Netzauslauf Verbandsgebäude
Total hardness	18 °dH	—	—	Single value · 4553, Netzauslauf Verbandsgebäude

Postcodes in this zone: 4542

4553, Ortsnetz Schlierbach (durch GWV Kremstal)

WV Gruppenwasserversorgung Kremstal

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

17.7 °dH

Hardness range hard

Key values 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	25,4 mg/l	50 mg/l	51 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Sulphate	10,4 mg/l	250 mg/l	4 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)

Show all recorded parameters (11 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	25,4 mg/l	50 mg/l	51 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)

Indicator parameters (5)

Indicator parameters – 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	7,2 mg/l	200 mg/l	4 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Conductivity (25 °C)	563 µS/cm	2,500 µS/cm	—	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
pH	7,5	6,5–9,5	—	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Sulphate	10,4 mg/l	250 mg/l	4 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)

Further parameters (5)

Further parameters – 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	93,5 mg/l	400 mg/l	23 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Carbonate hardness	16 °dH	—	—	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Magnesium	20,5 mg/l	150 mg/l	14 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Potassium	1,5 mg/l	50 mg/l	3 %	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)
Total hardness	17,7 °dH	—	—	Single value · 4553, Ortsnetz Schlierbach (durch GWV Kremstal)

Postcodes in this zone: 4542

4565, Auslauf Keller Stift Schlierbach

WV Gruppenwasserversorgung Kremstal

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

17.7 °dH

Hardness range hard

Key values 4565, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	28 mg/l	50 mg/l	56 %	Single value · 4565, Auslauf Keller Stift Schlierbach
Sulphate	10 mg/l	250 mg/l	4 %	Single value · 4565, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4565, Auslauf Keller Stift Schlierbach

Show all recorded parameters (11 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – 4565, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	28 mg/l	50 mg/l	56 %	Single value · 4565, Auslauf Keller Stift Schlierbach

Indicator parameters (5)

Indicator parameters – 4565, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	8,1 mg/l	200 mg/l	4 %	Single value · 4565, Auslauf Keller Stift Schlierbach
Conductivity (25 °C)	551 µS/cm	2,500 µS/cm	—	Single value · 4565, Auslauf Keller Stift Schlierbach
pH	7,4	6,5–9,5	—	Single value · 4565, Auslauf Keller Stift Schlierbach
Sodium	3,4 mg/l	200 mg/l	2 %	Single value · 4565, Auslauf Keller Stift Schlierbach
Sulphate	10 mg/l	250 mg/l	4 %	Single value · 4565, Auslauf Keller Stift Schlierbach

Further parameters (5)

Further parameters – 4565, Auslauf Keller Stift Schlierbach
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	94,2 mg/l	400 mg/l	24 %	Single value · 4565, Auslauf Keller Stift Schlierbach
Carbonate hardness	16,6 °dH	—	—	Single value · 4565, Auslauf Keller Stift Schlierbach
Magnesium	19,3 mg/l	150 mg/l	13 %	Single value · 4565, Auslauf Keller Stift Schlierbach
Potassium	1,9 mg/l	50 mg/l	4 %	Single value · 4565, Auslauf Keller Stift Schlierbach
Total hardness	17,7 °dH	—	—	Single value · 4565, Auslauf Keller Stift Schlierbach

Source: https://www.trinkwasserinfo.at/datenbank?no_cache=1&tx_abatrinkwdb_pi1_anlagenid=9171000&tx_abatrinkwdb_pi1_plz=4565&tx_abatrinkwdb_pi1_suche=1&cHash=d7f1bc1cdf2addca603d3f447b40c97f · 2024-03-25 · 2024-03-25 · retrieved on 08/08/2026

Postcodes in this zone: 4542

Frequently asked questions about drinking water in Luterbach

How hard is the water in Luterbach?: Einwohnergemeinde Luterbach publishes a total hardness of 23.8 °fH for the supply zone Luterbach — that corresponds to 13.3 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2025, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Luterbach?: Einwohnergemeinde Luterbach publishes a nitrate value of 9.7 mg/l for the supply zone Luterbach. The statutory parametric value is 40 mg/l; the measured value represents 24 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Luterbach?: Einwohnergemeinde Luterbach. The values shown here come from the supply zone Luterbach and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.

General questions — how current the data is, limit of quantification, parametric values, who is behind this site — are answered under Questions & answers.