How hard is the water in Postcode 74831?

Zweckverband Bodensee-Wasserversorgung publishes the hardness range mittel for the supply zone Wasserwerk Sipplinger Berg. 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: Publication by the water supplier, retrieved on 08/07/2026.

How much nitrate is in the drinking water in Postcode 74831?

Zweckverband Bodensee-Wasserversorgung publishes a nitrate value of 4,0 mg/L for the supply zone Wasserwerk Sipplinger Berg. The statutory parametric value is 50 mg/l; the measured value represents 8 % of the parametric value. Basis: Publication by the water supplier, retrieved on 08/07/2026.

Who supplies the drinking water in Postcode 74831?

Zweckverband Bodensee-Wasserversorgung. The values shown here come from the supply zone Wasserwerk Sipplinger Berg 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 74831

For this postcode the responsible water supplier publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 11 underneath. The water supplier publishes 3 further local networks that cannot be clearly assigned to this postcode — they are listed on the water supplier page.

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.

Wasserwerk Sipplinger Berg

Zweckverband Bodensee-Wasserversorgung

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 31/12/2020. 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

Hardness range mittel

Key values Wasserwerk Sipplinger Berg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	4,0 mg/L	50 mg/l	8 %	Mean
Lead	<0,0005 mg/L below limit of quantification	10 µg/l	< 5 % *	Mean
Escherichia coli (E. coli)	n.n. Anzahl/100 mL not detectable	0/100 ml	—	Mean
Sulphate	34 mg/L	250 mg/l	14 %	Mean
Sodium	5,6 mg/L	200 mg/l	3 %	Mean

* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.

Show all recorded parameters (69 — most recent value per parameter)

Microbiology (2)

Microbiology – Wasserwerk Sipplinger Berg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	n.n. Anzahl/100 mL not detectable	0/100 ml	—	Mean
Intestinal enterococci	n.n. Anzahl/100 mL not detectable	0/100 ml	—	Mean

Chemical parameters (34)

Chemical parameters – Wasserwerk Sipplinger Berg
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,2-dichloroethane	< 0,0003 mg/L below limit of quantification	3 µg/l	< 10 % *	Mean
Acrylamide	n.d. mg/L not determined	0.1 µg/l	—	Mean
Antimony	0,00011 mg/L	5 µg/l	2 %	Mean
Arsenic	0,00062 mg/L	10 µg/l	6 %	Mean
Benzene	< 0,00025 mg/L below limit of quantification	1 µg/l	< 25 % *	Mean
Benzo(a)pyrene	< 0,0000025 mg/L below limit of quantification	10 ng/l	< 25 % *	Mean
Benzo(b)fluoranthene	< 0,00001 mg/L below limit of quantification	—	—	Mean
Benzo(ghi)perylene	< 0,00001 mg/L below limit of quantification	—	—	Mean
Benzo(k)fluoranthene	< 0,00001 mg/L below limit of quantification	—	—	Mean
Boron	0,011 mg/L	1 mg/l	1 %	Mean
Bromate	0,0034 mg/L	10 µg/l	34 %	Mean
Bromodichloromethane	< 0,001 mg/L below limit of quantification	—	—	Mean
Cadmium	< 0,00005 mg/L below limit of quantification	3 µg/l	< 2 % *	Mean
Chromium	0,00012 mg/L	25 µg/l	0.5 %	Mean
Copper	0,00042 mg/L	2 mg/l	< 0.1 %	Mean
Cyanide	< 0,002 mg/L below limit of quantification	50 µg/l	< 4 % *	Mean
Dibromochloromethane	< 0,001 mg/L below limit of quantification	—	—	Mean
Epichlorohydrin	n.d. mg/L not determined	0.1 µg/l	—	Mean
Fluoride	0,10 mg/L	1.5 mg/l	7 %	Mean
Indeno(1,2,3-cd)pyrene	< 0,00001 mg/L below limit of quantification	—	—	Mean
Lead	<0,0005 mg/L below limit of quantification	10 µg/l	< 5 % *	Mean
Mercury	< 0,00005 mg/L below limit of quantification	1 µg/l	< 5 % *	Mean
Nickel	< 0,0005 mg/L below limit of quantification	20 µg/l	< 3 % *	Mean
Nitrate	4,0 mg/L	50 mg/l	8 %	Mean
Nitrite	< 0,005 mg/L below limit of quantification	0.5 mg/l	< 1 % *	Mean
Pesticides — Total	n.n. mg/L not detectable	0.5 µg/l	—	Mean
Polycyclic aromatic hydrocarbons	n.n. mg/L not detectable	0.1 µg/l	—	Mean
Selenium	< 0,001 mg/L below limit of quantification	10 µg/l	< 10 % *	Mean
Tetrachloroethene and Trichloroethene (sum)	n.n. mg/L not detectable	10 µg/l	—	Mean
Tribromomethane (bromoform)	< 0,001 mg/L below limit of quantification	—	—	Mean
Trichloromethane (chloroform)	< 0,001 mg/L below limit of quantification	—	—	Mean
Trihalomethanes — Total	n.n. mg/L not detectable	50 µg/l	—	Mean
Uranium	0,0010 mg/L	10 µg/l	10 %	Mean
Vinyl chloride	n.d. mg/L not determined	0.5 µg/l	—	Mean

Indicator parameters (18)

Indicator parameters – Wasserwerk Sipplinger Berg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	< 0,010 mg/L below limit of quantification	0.2 mg/l	< 5 % *	Mean
Ammonium	< 0,010 mg/L below limit of quantification	0.5 mg/l	< 2 % *	Mean
Calcite dissolution capacity	-3,4 mg/L CaCo₃	5 mg/l CaCO3	—	Mean
Chloride	7,7 mg/L	250 mg/l	3 %	Mean
Coliform bacteria	n.n. Anzahl/100 mL not detectable	0/100 ml	—	Mean
Colony count 22 °C	n.n. Anzahl/mL not detectable	ohne anormale Veränderung	—	Mean
Colony count 36 °C	n.n. Anzahl/mL not detectable	ohne anormale Veränderung	—	Mean
Colour	< 0,020 1/m below limit of quantification	0.5 m⁻¹	—	Mean
Conductivity (25 °C)	336 µS/cm	2,790 µS/cm	—	Mean
Iron	0,0056 mg/L	0.2 mg/l	3 %	Mean
Manganese	< 0,0005 mg/L below limit of quantification	50 µg/l	< 1 % *	Mean
Odour	1 bei 25°C TON	für den Verbraucher annehmbar	—	Mean
pH	8,01 / 8°C pH-Einheiten	6,5–9,5	—	Mean
Sodium	5,6 mg/L	200 mg/l	3 %	Mean
Sulphate	34 mg/L	250 mg/l	14 %	Mean
Taste	neutral	für den Verbraucher annehmbar	—	Mean
Total organic carbon (TOC)	0,93 mg/L	ohne anormale Veränderung	—	Mean
Turbidity	< 0,05 NTU below limit of quantification	1 NTU	—	Mean

Radiology (4)

Radiology – Wasserwerk Sipplinger Berg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Gross alpha activity	0,040 Bq/L	—	—	Mean
Indicative dose	n.d. mSv/Jahr not determined	0.1 mSv/a	—	Mean
Radon-222	< 0,10 Bq/L below limit of quantification	100 Bq/l	—	Mean
Tritium	n.d. Bq/L not determined	100 Bq/l	—	Mean

Further parameters (11)

Further parameters – Wasserwerk Sipplinger Berg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Barium	0,025 mg/L	—	—	Mean
Calcium	50 mg/L	—	—	Mean
Carbonate hardness	7,17 °dH	—	—	Mean
Hardness range (WRMG)	mittel	—	—	Mean
Lithium	0,0021 mg/L	—	—	Mean
Magnesium	8,5 mg/L	—	—	Mean
Oxygen	16,8 mg/L	—	—	Mean
Phosphate	< 0,003 mg/L below limit of quantification	—	—	Mean
Potassium	1,4 mg/L	—	—	Mean
Silicate / silicic acid	1,7 mg/L	—	—	Mean
Strontium	0,47 mg/L	—	—	Mean

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://www.bodensee-wasserversorgung.de/fileadmin/user_upload/Jahresmittelwerte_2020_V02.pdf · Jahresmittelwerte 2020 · retrieved on 08/07/2026

Show 11 more supply zones in this postcode

Aglasterhausen WS

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 11,9

Key values Aglasterhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	20,4 mg/l	50 mg/l	41 %	Mean · Aglasterhausen WS
Sulphate	15,2 mg/l	250 mg/l	6 %	Mean · Aglasterhausen WS
Sodium	7,0 mg/l	200 mg/l	3 %	Mean · Aglasterhausen WS

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Aglasterhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	20,4 mg/l	50 mg/l	41 %	Mean · Aglasterhausen WS

Indicator parameters (5)

Indicator parameters – Aglasterhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	22,2 mg/l	250 mg/l	9 %	Mean · Aglasterhausen WS
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Aglasterhausen WS
pH	7,32	6,5–9,5	—	Mean · Aglasterhausen WS
Sodium	7,0 mg/l	200 mg/l	3 %	Mean · Aglasterhausen WS
Sulphate	15,2 mg/l	250 mg/l	6 %	Mean · Aglasterhausen WS

Further parameters (4)

Further parameters – Aglasterhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	57,6 mg/l	—	—	Mean · Aglasterhausen WS
Hardness range (WRMG)	2,13 mmol/l	—	—	Mean · Aglasterhausen WS
Magnesium	16,9 mg/l	—	—	Mean · Aglasterhausen WS
Potassium	1,6 mg/l	—	—	Mean · Aglasterhausen WS

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Bad Rappenau WS & BWV

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 11,3

Key values Bad Rappenau WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	9,7 mg/l	50 mg/l	19 %	Mean · Bad Rappenau WS & BWV
Sulphate	44,2 mg/l	250 mg/l	18 %	Mean · Bad Rappenau WS & BWV
Sodium	17,0 mg/l	200 mg/l	9 %	Mean · Bad Rappenau WS & BWV

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Bad Rappenau WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	9,7 mg/l	50 mg/l	19 %	Mean · Bad Rappenau WS & BWV

Indicator parameters (5)

Indicator parameters – Bad Rappenau WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	25,8 mg/l	250 mg/l	10 %	Mean · Bad Rappenau WS & BWV
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Bad Rappenau WS & BWV
pH	7,9	6,5–9,5	—	Mean · Bad Rappenau WS & BWV
Sodium	17,0 mg/l	200 mg/l	9 %	Mean · Bad Rappenau WS & BWV
Sulphate	44,2 mg/l	250 mg/l	18 %	Mean · Bad Rappenau WS & BWV

Further parameters (4)

Further parameters – Bad Rappenau WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	62,3 mg/l	—	—	Mean · Bad Rappenau WS & BWV
Hardness range (WRMG)	2,02 mmol/l	—	—	Mean · Bad Rappenau WS & BWV
Magnesium	11,4 mg/l	—	—	Mean · Bad Rappenau WS & BWV
Potassium	2,0 mg/l	—	—	Mean · Bad Rappenau WS & BWV

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Breitenbronn WS

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 13,1

Key values Breitenbronn WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	21,1 mg/l	50 mg/l	42 %	Mean · Breitenbronn WS
Sulphate	12,8 mg/l	250 mg/l	5 %	Mean · Breitenbronn WS
Sodium	5,7 mg/l	200 mg/l	3 %	Mean · Breitenbronn WS

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Breitenbronn WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	21,1 mg/l	50 mg/l	42 %	Mean · Breitenbronn WS

Indicator parameters (5)

Indicator parameters – Breitenbronn WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	15,2 mg/l	250 mg/l	6 %	Mean · Breitenbronn WS
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Breitenbronn WS
pH	7,50	6,5–9,5	—	Mean · Breitenbronn WS
Sodium	5,7 mg/l	200 mg/l	3 %	Mean · Breitenbronn WS
Sulphate	12,8 mg/l	250 mg/l	5 %	Mean · Breitenbronn WS

Further parameters (4)

Further parameters – Breitenbronn WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	68,7 mg/l	—	—	Mean · Breitenbronn WS
Hardness range (WRMG)	2,34 mmol/l	—	—	Mean · Breitenbronn WS
Magnesium	15,2 mg/l	—	—	Mean · Breitenbronn WS
Potassium	1,0 mg/l	—	—	Mean · Breitenbronn WS

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Haßmersheim WS

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 13,2

Key values Haßmersheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	17,6 mg/l	50 mg/l	35 %	Mean · Haßmersheim WS
Sulphate	54,8 mg/l	250 mg/l	22 %	Mean · Haßmersheim WS
Sodium	35,5 mg/l	200 mg/l	18 %	Mean · Haßmersheim WS

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Haßmersheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	17,6 mg/l	50 mg/l	35 %	Mean · Haßmersheim WS

Indicator parameters (5)

Indicator parameters – Haßmersheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	52,6 mg/l	250 mg/l	21 %	Mean · Haßmersheim WS
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Haßmersheim WS
pH	7,8	6,5–9,5	—	Mean · Haßmersheim WS
Sodium	35,5 mg/l	200 mg/l	18 %	Mean · Haßmersheim WS
Sulphate	54,8 mg/l	250 mg/l	22 %	Mean · Haßmersheim WS

Further parameters (4)

Further parameters – Haßmersheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	77,9 mg/l	—	—	Mean · Haßmersheim WS
Hardness range (WRMG)	2,36 mmol/l	—	—	Mean · Haßmersheim WS
Magnesium	13,8 mg/l	—	—	Mean · Haßmersheim WS
Potassium	2,8 mg/l	—	—	Mean · Haßmersheim WS

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Hochhausen BWV

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 9,0

Key values Hochhausen BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	3,7 mg/l	50 mg/l	7 %	Mean · Hochhausen BWV
Sulphate	33,4 mg/l	250 mg/l	13 %	Mean · Hochhausen BWV
Sodium	5,8 mg/l	200 mg/l	3 %	Mean · Hochhausen BWV

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Hochhausen BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	3,7 mg/l	50 mg/l	7 %	Mean · Hochhausen BWV

Indicator parameters (5)

Indicator parameters – Hochhausen BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	7,7 mg/l	250 mg/l	3 %	Mean · Hochhausen BWV
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Hochhausen BWV
pH	8,21	6,5–9,5	—	Mean · Hochhausen BWV
Sodium	5,8 mg/l	200 mg/l	3 %	Mean · Hochhausen BWV
Sulphate	33,4 mg/l	250 mg/l	13 %	Mean · Hochhausen BWV

Further parameters (4)

Further parameters – Hochhausen BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	50,2 mg/l	—	—	Mean · Hochhausen BWV
Hardness range (WRMG)	1,61 mmol/l	—	—	Mean · Hochhausen BWV
Magnesium	8,8 mg/l	—	—	Mean · Hochhausen BWV
Potassium	1,4 mg/l	—	—	Mean · Hochhausen BWV

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Hüffenhardt WS & BWV

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 12,9

Key values Hüffenhardt WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	16,9 mg/l	50 mg/l	34 %	Mean · Hüffenhardt WS & BWV
Sulphate	49,3 mg/l	250 mg/l	20 %	Mean · Hüffenhardt WS & BWV
Sodium	28,7 mg/l	200 mg/l	14 %	Mean · Hüffenhardt WS & BWV

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Hüffenhardt WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	16,9 mg/l	50 mg/l	34 %	Mean · Hüffenhardt WS & BWV

Indicator parameters (5)

Indicator parameters – Hüffenhardt WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	44,3 mg/l	250 mg/l	18 %	Mean · Hüffenhardt WS & BWV
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Hüffenhardt WS & BWV
pH	7,5	6,5–9,5	—	Mean · Hüffenhardt WS & BWV
Sodium	28,7 mg/l	200 mg/l	14 %	Mean · Hüffenhardt WS & BWV
Sulphate	49,3 mg/l	250 mg/l	20 %	Mean · Hüffenhardt WS & BWV

Further parameters (4)

Further parameters – Hüffenhardt WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	71,6 mg/l	—	—	Mean · Hüffenhardt WS & BWV
Hardness range (WRMG)	2,30 mmol/l	—	—	Mean · Hüffenhardt WS & BWV
Magnesium	12,5 mg/l	—	—	Mean · Hüffenhardt WS & BWV
Potassium	2,6 mg/l	—	—	Mean · Hüffenhardt WS & BWV

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Massenbachhausen WS

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 27,0

Key values Massenbachhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	32,0 mg/l	50 mg/l	64 %	Mean · Massenbachhausen WS
Sulphate	51,0 mg/l	250 mg/l	20 %	Mean · Massenbachhausen WS
Sodium	5,9 mg/l	200 mg/l	3 %	Mean · Massenbachhausen WS

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Massenbachhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	32,0 mg/l	50 mg/l	64 %	Mean · Massenbachhausen WS

Indicator parameters (5)

Indicator parameters – Massenbachhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	48,0 mg/l	250 mg/l	19 %	Mean · Massenbachhausen WS
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Massenbachhausen WS
pH	7,09	6,5–9,5	—	Mean · Massenbachhausen WS
Sodium	5,9 mg/l	200 mg/l	3 %	Mean · Massenbachhausen WS
Sulphate	51,0 mg/l	250 mg/l	20 %	Mean · Massenbachhausen WS

Further parameters (4)

Further parameters – Massenbachhausen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	135,0 mg/l	—	—	Mean · Massenbachhausen WS
Hardness range (WRMG)	4,70 mmol/l	—	—	Mean · Massenbachhausen WS
Magnesium	33,0 mg/l	—	—	Mean · Massenbachhausen WS
Potassium	0,6 mg/l	—	—	Mean · Massenbachhausen WS

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Massenbach WS

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 24,0

Key values Massenbach WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	36,0 mg/l	50 mg/l	72 %	Mean · Massenbach WS
Sulphate	31,0 mg/l	250 mg/l	12 %	Mean · Massenbach WS
Sodium	6,5 mg/l	200 mg/l	3 %	Mean · Massenbach WS

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Massenbach WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	36,0 mg/l	50 mg/l	72 %	Mean · Massenbach WS

Indicator parameters (5)

Indicator parameters – Massenbach WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	34,0 mg/l	250 mg/l	14 %	Mean · Massenbach WS
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Massenbach WS
pH	7,18	6,5–9,5	—	Mean · Massenbach WS
Sodium	6,5 mg/l	200 mg/l	3 %	Mean · Massenbach WS
Sulphate	31,0 mg/l	250 mg/l	12 %	Mean · Massenbach WS

Further parameters (4)

Further parameters – Massenbach WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	122,0 mg/l	—	—	Mean · Massenbach WS
Hardness range (WRMG)	4,3 mmol/l	—	—	Mean · Massenbach WS
Magnesium	32,0 mg/l	—	—	Mean · Massenbach WS
Potassium	0,3 mg/l	—	—	Mean · Massenbach WS

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Neckarbischofsheim WS

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 12,0

Key values Neckarbischofsheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	17,2 mg/l	50 mg/l	34 %	Mean · Neckarbischofsheim WS
Sulphate	15,2 mg/l	250 mg/l	6 %	Mean · Neckarbischofsheim WS
Sodium	7,1 mg/l	200 mg/l	4 %	Mean · Neckarbischofsheim WS

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Neckarbischofsheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	17,2 mg/l	50 mg/l	34 %	Mean · Neckarbischofsheim WS

Indicator parameters (5)

Indicator parameters – Neckarbischofsheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	15,2 mg/l	250 mg/l	6 %	Mean · Neckarbischofsheim WS
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Neckarbischofsheim WS
pH	7,8	6,5–9,5	—	Mean · Neckarbischofsheim WS
Sodium	7,1 mg/l	200 mg/l	4 %	Mean · Neckarbischofsheim WS
Sulphate	15,2 mg/l	250 mg/l	6 %	Mean · Neckarbischofsheim WS

Further parameters (4)

Further parameters – Neckarbischofsheim WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	61,5 mg/l	—	—	Mean · Neckarbischofsheim WS
Hardness range (WRMG)	2,15 mmol/l	—	—	Mean · Neckarbischofsheim WS
Magnesium	15,0 mg/l	—	—	Mean · Neckarbischofsheim WS
Potassium	1,1 mg/l	—	—	Mean · Neckarbischofsheim WS

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Neunkirchen WS

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 8,7

Key values Neunkirchen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	14,6 mg/l	50 mg/l	29 %	Mean · Neunkirchen WS
Sulphate	8,1 mg/l	250 mg/l	3 %	Mean · Neunkirchen WS
Sodium	4,2 mg/l	200 mg/l	2 %	Mean · Neunkirchen WS

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Neunkirchen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	14,6 mg/l	50 mg/l	29 %	Mean · Neunkirchen WS

Indicator parameters (5)

Indicator parameters – Neunkirchen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	12,0 mg/l	250 mg/l	5 %	Mean · Neunkirchen WS
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Neunkirchen WS
pH	7,85	6,5–9,5	—	Mean · Neunkirchen WS
Sodium	4,2 mg/l	200 mg/l	2 %	Mean · Neunkirchen WS
Sulphate	8,1 mg/l	250 mg/l	3 %	Mean · Neunkirchen WS

Further parameters (4)

Further parameters – Neunkirchen WS
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	43,0 mg/l	—	—	Mean · Neunkirchen WS
Hardness range (WRMG)	1,56 mmol/l	—	—	Mean · Neunkirchen WS
Magnesium	11,9 mg/l	—	—	Mean · Neunkirchen WS
Potassium	1,2 mg/l	—	—	Mean · Neunkirchen WS

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Obrigheim WS & BWV

Zweckverband Wasserversorgungsgruppe Mühlbach

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

Water hardness

Hardness range 13,3

Key values Obrigheim WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	8,9 mg/l	50 mg/l	18 %	Mean · Obrigheim WS & BWV
Sulphate	34,6 mg/l	250 mg/l	14 %	Mean · Obrigheim WS & BWV
Sodium	8,6 mg/l	200 mg/l	4 %	Mean · Obrigheim WS & BWV

Show all recorded parameters (10 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Obrigheim WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	8,9 mg/l	50 mg/l	18 %	Mean · Obrigheim WS & BWV

Indicator parameters (5)

Indicator parameters – Obrigheim WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	13,3 mg/l	250 mg/l	5 %	Mean · Obrigheim WS & BWV
Iron	< BG mg/l not detectable	0.2 mg/l	—	Mean · Obrigheim WS & BWV
pH	7,59	6,5–9,5	—	Mean · Obrigheim WS & BWV
Sodium	8,6 mg/l	200 mg/l	4 %	Mean · Obrigheim WS & BWV
Sulphate	34,6 mg/l	250 mg/l	14 %	Mean · Obrigheim WS & BWV

Further parameters (4)

Further parameters – Obrigheim WS & BWV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	75,6 mg/l	—	—	Mean · Obrigheim WS & BWV
Hardness range (WRMG)	2,37 mmol/l	—	—	Mean · Obrigheim WS & BWV
Magnesium	11,7 mg/l	—	—	Mean · Obrigheim WS & BWV
Potassium	1,4 mg/l	—	—	Mean · Obrigheim WS & BWV

Source: https://www.mb-wasser.de/wp-content/uploads/_media/download/Wasserbeschaffenheit.pdf · V01.02-2025-10-24 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Frequent questions about postcode 74831

How hard is the water in Postcode 74831?: Zweckverband Bodensee-Wasserversorgung publishes the hardness range mittel for the supply zone Wasserwerk Sipplinger Berg. 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: Publication by the water supplier, retrieved on 08/07/2026.
How much nitrate is in the drinking water in Postcode 74831?: Zweckverband Bodensee-Wasserversorgung publishes a nitrate value of 4,0 mg/L for the supply zone Wasserwerk Sipplinger Berg. The statutory parametric value is 50 mg/l; the measured value represents 8 % of the parametric value. Basis: Publication by the water supplier, retrieved on 08/07/2026.
Who supplies the drinking water in Postcode 74831?: Zweckverband Bodensee-Wasserversorgung. The values shown here come from the supply zone Wasserwerk Sipplinger Berg 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.