How hard is the water in Horb am Neckar?

Zweckverband Wasserversorgung Kleine Kinzig publishes the hardness range 3,3 for the supply zone alpirsbach gesamt. 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: 09.12.2021, retrieved on 13/07/2026.

How much nitrate is in the drinking water in Horb am Neckar?

Zweckverband Wasserversorgung Kleine Kinzig publishes a nitrate value of 1,3 mg/L for the supply zone alpirsbach gesamt. The statutory parametric value is 50 mg/l; the measured value represents 3 % of the parametric value. Basis: 09.12.2021, retrieved on 13/07/2026.

Who supplies the drinking water in Horb am Neckar?

Zweckverband Wasserversorgung Kleine Kinzig. The values shown here come from the supply zone alpirsbach gesamt 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 Horb am Neckar

12 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.

alpirsbach gesamt

Zweckverband Wasserversorgung Kleine Kinzig

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 20/10/2021. 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 3,3

Key values alpirsbach gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	1,3 mg/L	50 mg/l	3 %	Single value
Sulphate	3,0 mg/L	250 mg/l	1 %	Single value
Sodium	2,0 mg/L	200 mg/l	1 %	Single value

Show all recorded parameters (71 — most recent value per parameter)

Chemical parameters (48)

Chemical parameters – alpirsbach gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,1,1-Trichloroethane	< BG µg/L not detectable	—	—	Single value
1,2-dichloroethane	< BG µg/L not detectable	3 µg/l	—	Single value
2,6-Dichlorobenzamide (BAM)	< BG µg/L not detectable	—	—	Single value
Atrazine	< BG µg/L not detectable	—	—	Single value
Benzene	< BG µg/L not detectable	1 µg/l	—	Single value
Boron	< BG mg/L not detectable	1 mg/l	—	Single value
Bromacil	< BG µg/L not detectable	—	—	Single value
Bromate	< BG µg/L not detectable	10 µg/l	—	Single value
Carbetamide	< BG µg/L not detectable	—	—	Single value
Chloridazon	< BG µg/L not detectable	—	—	Single value
Chlorotoluron	< BG µg/L not detectable	—	—	Single value
Chromium	< BG mg/L not detectable	25 µg/l	—	Single value
cis-1,2-Dichloroethene	< BG µg/L not detectable	—	—	Single value
Cyanazine	< BG µg/L not detectable	—	—	Single value
Cyanide	< BG mg/L not detectable	50 µg/l	—	Single value
Desethylatrazine	< BG µg/L not detectable	—	—	Single value
Desethylterbuthylazine	< BG µg/L not detectable	—	—	Single value
Dichloromethane	< BG µg/L not detectable	—	—	Single value
Diuron	< BG µg/L not detectable	—	—	Single value
Fluoride	< BG mg/L not detectable	1.5 mg/l	—	Single value
Hexazinone	< BG µg/L not detectable	—	—	Single value
Isoproturon	< BG µg/L not detectable	—	—	Single value
Lenacil	< BG µg/L not detectable	—	—	Single value
Mercury	< BG mg/L not detectable	1 µg/l	—	Single value
Metalaxyl	< BG µg/L not detectable	—	—	Single value
Metamitron	< BG µg/L not detectable	—	—	Single value
Metazachlor	< BG µg/L not detectable	—	—	Single value
Methabenzthiazuron	< BG µg/L not detectable	—	—	Single value
Metobromuron	< BG µg/L not detectable	—	—	Single value
Metoxuron	< BG µg/L not detectable	—	—	Single value
Metribuzin	< BG µg/L not detectable	—	—	Single value
Nitrate	1,3 mg/L	50 mg/l	3 %	Single value
Nitrite	< BG mg/L not detectable	0.5 mg/l	—	Single value
Pendimethalin	< BG µg/L not detectable	—	—	Single value
Prometryn	< BG µg/L not detectable	—	—	Single value
Propazine	< BG µg/L not detectable	—	—	Single value
Sebuthylazine	< BG µg/L not detectable	—	—	Single value
Selenium	< BG mg/L not detectable	10 µg/l	—	Single value
Simazine	< BG µg/L not detectable	—	—	Single value
Terbuthylazine	< BG µg/L not detectable	—	—	Single value
Terbutryn	< BG µg/L not detectable	—	—	Single value
Tetrachloroethene	< BG µg/L not detectable	—	—	Single value
Tetrachloroethene and Trichloroethene (sum)	0,000 µg/L	10 µg/l	0 %	Single value
Tetrachloromethane	< BG µg/L not detectable	—	—	Single value
Tri-allate	< BG µg/L not detectable	—	—	Single value
Triadimenol	< BG µg/L not detectable	—	—	Single value
Trichloroethene	< BG µg/L not detectable	—	—	Single value
Uranium	< BG mg/L not detectable	10 µg/l	—	Single value

Indicator parameters (14)

Indicator parameters – alpirsbach gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	0,02 mg/L	0.2 mg/l	10 %	Single value
Ammonium	< BG mg/L not detectable	0.5 mg/l	—	Single value
Calcite dissolution capacity	2 mg/L	5 mg/l CaCO3	—	Single value
Chloride	5,0 mg/L	250 mg/l	2 %	Single value
Colour	ohne -	0.5 m⁻¹	—	Single value
Iron	0,07 mg/L	0.2 mg/l	35 %	Single value
Manganese	< BG mg/L not detectable	50 µg/l	—	Single value
Odour	ohne -	für den Verbraucher annehmbar	—	Single value
pH	8,09 -	6,5–9,5	—	Single value
Sodium	2,0 mg/L	200 mg/l	1 %	Single value
Sulphate	3,0 mg/L	250 mg/l	1 %	Single value
Threshold odour number (TON)	< BG - not detectable	—	—	Single value
Total organic carbon (TOC)	0,68 mg/L	ohne anormale Veränderung	—	Single value
Turbidity	- FNU not determined	1 NTU	—	Single value

Further parameters (9)

Further parameters – alpirsbach gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	1,06 mmol/L	—	—	Single value
Base capacity to pH 8.2	< BG mmol/L not detectable	—	—	Single value
Calcite precipitation capacity	< BG mg/L not detectable	—	—	Single value
Calcium	20,9 mg/L	—	—	Single value
Hardness range (WRMG)	3,3 °dH	—	—	Mean
Magnesium	1,2 mg/L	—	—	Single value
Oxygen	9,7 mg/L	—	—	Single value
Potassium	1,0 mg/L	—	—	Single value
Saturation index	0,33 -	—	—	Single value

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.hornberg.de/ceasy/resource/?id=1810&download=1 · 09.12.2021 · Probenahme vom 20.10.2021 · retrieved on 13/07/2026

Postcodes in this zone: 72160

Show 11 more supply zones

dornstetten gesamt

Zweckverband Wasserversorgung Kleine Kinzig

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

Water hardness

Hardness range 3,2

Key values dornstetten gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	0,0000026 mg/l	—	—	Mean
Nitrate	1,7 mg/l	50 mg/l	3 %	Mean
Escherichia coli (E. coli)	0 Anzahl/100 ml	0/100 ml	—	Maximum · Median 0
Sulphate	3,2 mg/l	250 mg/l	1 %	Mean
Sodium	1,8 mg/l	200 mg/l	0.9 %	Mean

Show all recorded parameters (47 — most recent value per parameter)

Microbiology (2)

Microbiology – dornstetten gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	0 Anzahl/100 ml	0/100 ml	—	Maximum · Median 0
Intestinal enterococci	0 Anzahl/100 ml	0/100 ml	—	Maximum · Median 0

Chemical parameters (15)

Chemical parameters – dornstetten gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,2-dichloroethane	<0,0001 mg/l below limit of quantification	3 µg/l	< 3 % *	Mean
Acrylamide	n. a. mg/l not detectable	0.1 µg/l	—	Mean
Benzene	<0,0001 mg/l below limit of quantification	1 µg/l	< 10 % *	Mean
Boron	<0,02 mg/l below limit of quantification	1 mg/l	< 2 % *	Mean
Bromate	0,0012 mg/l	10 µg/l	12 %	Mean
Chromium	<0,0005 mg/l below limit of quantification	25 µg/l	< 2 % *	Mean
Cyanide	<0,01 mg/l below limit of quantification	50 µg/l	< 20 % *	Mean
Fluoride	<0,05 mg/l below limit of quantification	1.5 mg/l	< 3 % *	Mean
Mercury	<0,00005 mg/l below limit of quantification	1 µg/l	< 5 % *	Mean
Microcystin-LR	n. a. mg/l not detectable	—	—	Mean
Nitrate	1,7 mg/l	50 mg/l	3 %	Mean
Pesticides — Total	n. n. mg/l not detectable	0.5 µg/l	—	Mean
Selenium	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Mean
Tetrachloroethene and Trichloroethene (sum)	0,000 mg/l	10 µg/l	0 %	Mean
Uranium	<0,0001 mg/l below limit of quantification	10 µg/l	< 1 % *	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.

PFAS (2)

PFAS – dornstetten gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of 4 PFAS	0,00000096 mg/l	—	—	Mean
Sum of PFAS	0,0000026 mg/l	—	—	Mean

Indicator parameters (17)

Indicator parameters – dornstetten gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	0,026 mg/l	0.2 mg/l	13 %	Mean
Ammonium	<0,01 mg/l below limit of quantification	0.5 mg/l	< 2 % *	Mean
Calcite dissolution capacity	0,9 mg/l	5 mg/l CaCO3	—	Mean
Chloride	5,7 mg/l	250 mg/l	2 %	Mean
Coliform bacteria	0 Anzahl/100 ml	0/100 ml	—	Maximum · Median 0
Colony count 22 °C	0,04 pro ml	ohne anormale Veränderung	—	Mean
Colony count 36 °C	0,30 pro ml	ohne anormale Veränderung	—	Mean
Colour	<0,1 m-1 below limit of quantification	0.5 m⁻¹	—	Mean
Conductivity (25 °C)	132 µS/cm	2,790 µS/cm	—	Mean
Iron	<0,01 mg/l below limit of quantification	0.2 mg/l	< 5 % *	Mean
Manganese	<0,005 mg/l below limit of quantification	50 µg/l	< 10 % *	Mean
Oxidisability	n. a. mg/l O2 not detectable	5 mg/l O2	—	Mean
Sodium	1,8 mg/l	200 mg/l	0.9 %	Mean
Sulphate	3,2 mg/l	250 mg/l	1 %	Mean
Taste	ohne -	für den Verbraucher annehmbar	—	Mean
Total organic carbon (TOC)	0,69 mg/l	ohne anormale Veränderung	—	Mean
Turbidity	0,13 FNU	1 NTU	—	Mean

Radiology (3)

Radiology – dornstetten gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Gross alpha activity	n. a. Bq/l not detectable	—	—	Mean
Radon-222	n. a. Bq/l not detectable	100 Bq/l	—	Mean
Tritium	n. a. Bq/l not detectable	100 Bq/l	—	Mean

Further parameters (8)

Further parameters – dornstetten gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	1,07 mmol/l	—	—	Mean
Base capacity to pH 8.2	<0,005 mmol/l below limit of quantification	—	—	Mean
Calcite precipitation capacity	<1 mg/l below limit of quantification	—	—	Mean
Calcium	20,8 mg/l	—	—	Mean
Hardness range (WRMG)	3,2 ° dH	—	—	Mean
Magnesium	1,2 mg/l	—	—	Mean
Oxygen	11,8 mg/l	—	—	Mean
Potassium	1,02 mg/l	—	—	Mean

Source: https://www.zvwkk.de/content/2-trinkwasser/modules/4-section-5k5b49/wkk-wasserqualitaet-2025.pdf · Jahresmittelwerte 2025 · retrieved on 13/07/2026

Postcodes in this zone: 72160

Hochbehälter

Zweckverband Wasserversorgung Kleine Kinzig

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

Key values Hochbehälter
Parameter	Value	Parametric value	Share of the parametric value	Reference
Lead	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Mean · Hochbehälter

Show all recorded parameters (13 — most recent value per parameter)

Chemical parameters (13)

Chemical parameters – Hochbehälter
Parameter	Value	Parametric value	Share of the parametric value	Reference
Antimony	<0,001 mg/l below limit of quantification	5 µg/l	< 20 % *	Mean · Hochbehälter
Arsenic	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Mean · Hochbehälter
Benzo(a)pyrene	<0,000002 mg/l below limit of quantification	10 ng/l	< 20 % *	Mean · Hochbehälter
Bisphenol A	<0,000005 mg/l below limit of quantification	2.5 µg/l	< 0.2 % *	Mean · Hochbehälter
Cadmium	<0,0001 mg/l below limit of quantification	3 µg/l	< 3 % *	Mean · Hochbehälter
Copper	<0,01 mg/l below limit of quantification	2 mg/l	< 0.5 % *	Mean · Hochbehälter
Epichlorohydrin	n. a. mg/l not detectable	0.1 µg/l	—	Mean · Hochbehälter
Haloacetic acids (HAA)	0,0029 mg/l	—	—	Maximum · Hochbehälter
Lead	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Mean · Hochbehälter
Nickel	<0,001 mg/l below limit of quantification	20 µg/l	< 5 % *	Mean · Hochbehälter
Nitrite	<0,01 mg/l below limit of quantification	0.5 mg/l	< 2 % *	Mean · Hochbehälter
Trihalomethanes — Total	0,005 mg/l	50 µg/l	10 %	Mean · Hochbehälter
Vinyl chloride	n. a. mg/l not detectable	0.5 µg/l	—	Mean · Hochbehälter

Source: https://www.zvwkk.de/content/2-trinkwasser/modules/4-section-5k5b49/wkk-wasserqualitaet-2025.pdf · Jahresmittelwerte 2025 · retrieved on 13/07/2026

Postcodes in this zone: 72160

lossburg gesamt

Zweckverband Wasserversorgung Kleine Kinzig

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 24/10/2024. 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

Hardness range 3,14

Key values lossburg gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of PFAS	0,0000 µg/L	—	—	Single value
Nitrate	1,8 mg/L	50 mg/l	4 %	Single value
Sulphate	3,3 mg/L	250 mg/l	1 %	Single value
Sodium	1,6 mg/L	200 mg/l	0.8 %	Single value

Show all recorded parameters (72 — most recent value per parameter)

Chemical parameters (48)

Chemical parameters – lossburg gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,1,1-Trichloroethane	< BG µg/L not detectable	—	—	Single value
1,2-dichloroethane	< BG µg/L not detectable	3 µg/l	—	Single value
2,6-Dichlorobenzamide (BAM)	< BG µg/L not detectable	—	—	Single value
Atrazine	< BG µg/L not detectable	—	—	Single value
Benzene	< BG µg/L not detectable	1 µg/l	—	Single value
Boron	< BG mg/L not detectable	1 mg/l	—	Single value
Bromacil	< BG µg/L not detectable	—	—	Single value
Bromate	< BG µg/L not detectable	10 µg/l	—	Single value
Carbetamide	< BG µg/L not detectable	—	—	Single value
Chloridazon	< BG µg/L not detectable	—	—	Single value
Chlorotoluron	< BG µg/L not detectable	—	—	Single value
Chromium	< BG mg/L not detectable	25 µg/l	—	Single value
cis-1,2-Dichloroethene	< BG µg/L not detectable	—	—	Single value
Cyanazine	< BG µg/L not detectable	—	—	Single value
Cyanide	< BG mg/L not detectable	50 µg/l	—	Single value
Desethylatrazine	< BG µg/L not detectable	—	—	Single value
Desethylterbuthylazine	< BG µg/L not detectable	—	—	Single value
Dichloromethane	< BG µg/L not detectable	—	—	Single value
Diuron	< BG µg/L not detectable	—	—	Single value
Fluoride	< BG mg/L not detectable	1.5 mg/l	—	Single value
Hexazinone	< BG µg/L not detectable	—	—	Single value
Isoproturon	< BG µg/L not detectable	—	—	Single value
Lenacil	< BG µg/L not detectable	—	—	Single value
Mercury	< BG mg/L not detectable	1 µg/l	—	Single value
Metalaxyl	< BG µg/L not detectable	—	—	Single value
Metamitron	< BG µg/L not detectable	—	—	Single value
Metazachlor	< BG µg/L not detectable	—	—	Single value
Methabenzthiazuron	< BG µg/L not detectable	—	—	Single value
Metobromuron	< BG µg/L not detectable	—	—	Single value
Metoxuron	< BG µg/L not detectable	—	—	Single value
Metribuzin	< BG µg/L not detectable	—	—	Single value
Nitrate	1,8 mg/L	50 mg/l	4 %	Single value
Nitrite	< BG mg/L not detectable	0.5 mg/l	—	Single value
Pendimethalin	< BG µg/L not detectable	—	—	Single value
Prometryn	< BG µg/L not detectable	—	—	Single value
Propazine	< BG µg/L not detectable	—	—	Single value
Sebuthylazine	< BG µg/L not detectable	—	—	Single value
Selenium	< BG mg/L not detectable	10 µg/l	—	Single value
Simazine	< BG µg/L not detectable	—	—	Single value
Terbuthylazine	< BG µg/L not detectable	—	—	Single value
Terbutryn	< BG µg/L not detectable	—	—	Single value
Tetrachloroethene	< BG µg/L not detectable	—	—	Single value
Tetrachloroethene and Trichloroethene (sum)	0,000 µg/L	10 µg/l	0 %	Single value
Tetrachloromethane	< BG µg/L not detectable	—	—	Single value
Tri-allate	< BG µg/L not detectable	—	—	Single value
Triadimenol	< BG µg/L not detectable	—	—	Single value
Trichloroethene	< BG µg/L not detectable	—	—	Single value
Uranium	< BG mg/L not detectable	10 µg/l	—	Single value

PFAS (2)

PFAS – lossburg gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sum of 4 PFAS	0,0000 µg/L	—	—	Single value
Sum of PFAS	0,0000 µg/L	—	—	Single value

Indicator parameters (13)

Indicator parameters – lossburg gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	< BG mg/L not detectable	0.2 mg/l	—	Single value
Ammonium	< BG mg/L not detectable	0.5 mg/l	—	Single value
Calcite dissolution capacity	< BG mg/L not detectable	5 mg/l CaCO3	—	Single value
Chloride	5,3 mg/L	250 mg/l	2 %	Single value
Colour	ohne -	0.5 m⁻¹	—	Single value
Iron	< BG mg/L not detectable	0.2 mg/l	—	Single value
Manganese	< BG mg/L not detectable	50 µg/l	—	Single value
Odour	ohne -	für den Verbraucher annehmbar	—	Single value
pH	8,16 -	6,5–9,5	—	Single value
Sodium	1,6 mg/L	200 mg/l	0.8 %	Single value
Sulphate	3,3 mg/L	250 mg/l	1 %	Single value
Total organic carbon (TOC)	0,75 mg/L	ohne anormale Veränderung	—	Single value
Turbidity	- FNU not determined	1 NTU	—	Single value

Further parameters (9)

Further parameters – lossburg gesamt
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	1,22 mmol/L	—	—	Single value
Base capacity to pH 8.2	< BG mmol/L not detectable	—	—	Single value
Calcite precipitation capacity	< BG mg/L not detectable	—	—	Single value
Calcium	20,68 mg Ca/l	—	—	Mean
Hardness range (WRMG)	3,14 °dH	—	—	Mean
Magnesium	1,1 mg/L	—	—	Single value
Oxygen	9,3 mg/L	—	—	Single value
Potassium	1,0 mg/L	—	—	Single value
Saturation index	-0,11 -	—	—	Single value

Source: https://www.steinach.de/site/Steinach/get/documents_E-17066343/steinach/Dateien/Wasserversorgung/Anschreiben_Wasseranalyse_Verbandsmitglieder_2024_mit%20Anhang.pdf · 28.02.2025 · Probenahme 24.10.2024 · retrieved on 25/07/2026

Postcodes in this zone: 72160

Oberjettingen / HHB Mischwasser

ZV Gäuwasserversorgung

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

Water hardness

16 °dH

Hardness range hart

Key values Oberjettingen / HHB Mischwasser
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	16,0 mg/l	50 mg/l	32 %	Single value
Lead	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Single value
Sulphate	54 mg/l	250 mg/l	22 %	Single value
Sodium	8,9 mg/l	200 mg/l	4 %	Single value

Show all recorded parameters (80 — most recent value per parameter)

Chemical parameters (43)

Chemical parameters – Oberjettingen / HHB Mischwasser
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,2-dichloroethane	<0,0005 mg/l below limit of quantification	3 µg/l	< 17 % *	Single value
Antimony	<0,001 mg/l below limit of quantification	5 µg/l	< 20 % *	Single value
Arsenic	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Single value
Atrazine	<0,000025 mg/l below limit of quantification	—	—	Single value
Benzene	<0,00025 mg/l below limit of quantification	1 µg/l	< 25 % *	Single value
Benzo(a)pyrene	<0,000001 mg/l below limit of quantification	10 ng/l	< 10 % *	Single value
Benzo(b)fluoranthene	0,000002 mg/l	—	—	Single value
Benzo(ghi)perylene	<0,000001 mg/l below limit of quantification	—	—	Single value
Benzo(k)fluoranthene	<0,000001 mg/l below limit of quantification	—	—	Single value
Bisphenol A	<0,0001 mg/l below limit of quantification	2.5 µg/l	< 4 % *	Single value
Boron	<0,02 mg/l below limit of quantification	1 mg/l	< 2 % *	Single value
Bromate	<0,0025 mg/l below limit of quantification	10 µg/l	< 25 % *	Single value
Bromodichloromethane	0,0016 mg/l	—	—	Single value
Cadmium	<0,0001 mg/l below limit of quantification	3 µg/l	< 3 % *	Single value
Chlorate	0,02 mg/l	70 µg/l	29 %	Single value
Chlorite	0,05 mg/l	0.2 mg/l	25 %	Single value
Chromium	0,0006 mg/l	25 µg/l	2 %	Single value
Copper	0,002 mg/l	2 mg/l	0.1 %	Single value
Cyanide	<0,005 mg/l below limit of quantification	50 µg/l	< 10 % *	Single value
Dibromoacetic acid	<2,0 mg/l below limit of quantification	—	—	Single value
Dibromochloromethane	0,0015 mg/l	—	—	Single value
Dichloroacetic acid	<2,0 mg/l below limit of quantification	—	—	Single value
Fluoride	<0,08 mg/l below limit of quantification	1.5 mg/l	< 5 % *	Single value
Lead	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Single value
Mercury	<0,0001 mg/l below limit of quantification	1 µg/l	< 10 % *	Single value
Metazachlor	<0,000025 mg/l below limit of quantification	—	—	Single value
Metolachlor	<0,000025 mg/l below limit of quantification	—	—	Single value
Monobromoacetic acid	<2,0 mg/l below limit of quantification	—	—	Single value
Monochloroacetic acid	<2,0 mg/l below limit of quantification	—	—	Single value
Nickel	<0,001 mg/l below limit of quantification	20 µg/l	< 5 % *	Single value
Nitrate	16,0 mg/l	50 mg/l	32 %	Single value
Nitrite	<0,01 mg/l below limit of quantification	0.5 mg/l	< 2 % *	Single value
Pesticides — Total	(n.b.) mg/l not determined	0.5 µg/l	—	Single value
Selenium	<0,001 mg/l below limit of quantification	10 µg/l	< 10 % *	Single value
Simazine	<0,000025 mg/l below limit of quantification	—	—	Single value
Terbuthylazine	<0,000025 mg/l below limit of quantification	—	—	Single value
Tetrachloroethene	<0,0005 mg/l below limit of quantification	—	—	Single value
Tribromomethane (bromoform)	0,0006 mg/l	—	—	Single value
Trichloroacetic acid	<2,0 mg/l below limit of quantification	—	—	Single value
Trichloroethene	<0,0005 mg/l below limit of quantification	—	—	Single value
Trichloromethane (chloroform)	0,0016 mg/l	—	—	Single value
Trihalomethanes — Total	0,0053 mg/l	50 µg/l	11 %	Single value
Uranium	0,0009 mg/l	10 µg/l	9 %	Single value

PFAS (14)

PFAS – Oberjettingen / HHB Mischwasser
Parameter	Value	Parametric value	Share of the parametric value	Reference
Perfluorobutane sulfonic acid (PFBS)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluorobutanoic acid (PFBA)	0,0011 µg/l	—	—	Single value
Perfluorodecane sulfonic acid (PFDS)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluoroheptane sulfonic acid (PFHpS)	< 0,0010 µg/l below limit of quantification	—	—	Single value
Perfluoroheptanoic acid (PFHpA)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluorohexane sulfonic acid (PFHxS)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluorohexanoic acid (PFHxA)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluorononane sulfonic acid (PFNS)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluorononanoic acid (PFNA)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluorooctanesulfonic acid (PFOS)	0,013 µg/l	—	—	Single value
Perfluorooctanoic acid (PFOA)	0,0035 µg/l	—	—	Single value
Perfluoropentanesulfonic acid (PFPeS)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluoropentanoic acid (PFPeA)	<0,0010 µg/l below limit of quantification	—	—	Single value
Perfluorotridecanesulfonic acid (PFTrDS)	<0,0010 µg/l below limit of quantification	—	—	Single value

Indicator parameters (12)

Indicator parameters – Oberjettingen / HHB Mischwasser
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	0,007 mg/l	0.2 mg/l	3 %	Single value
Ammonium	<0,01 mg/l below limit of quantification	0.5 mg/l	< 2 % *	Single value
Calcite dissolution capacity	-11 mg/l	5 mg/l CaCO3	—	Single value
Chloride	17 mg/l	250 mg/l	7 %	Single value
Conductivity (25 °C)	560 µS/cm	2,790 µS/cm	—	Single value
Iron	<0,005 mg/l below limit of quantification	0.2 mg/l	< 3 % *	Single value
Manganese	<0,001 mg/l below limit of quantification	50 µg/l	< 2 % *	Single value
pH	7,70	6,5–9,5	—	Single value
Sodium	8,9 mg/l	200 mg/l	4 %	Single value
Sulphate	54 mg/l	250 mg/l	22 %	Single value
Temperature	7,8 °C	—	—	Single value
Total organic carbon (TOC)	1,0 mg/l	ohne anormale Veränderung	—	Single value

Further parameters (11)

Further parameters – Oberjettingen / HHB Mischwasser
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	4,5 mmol/l	—	—	Single value
Calcium	82,2 mg/l	—	—	Single value
Carbonate hardness	2,25 mmol/l	—	—	Single value
Hardness range (WRMG)	hart	—	—	Single value
Hydrogen carbonate	271 mg/l	—	—	Single value
Magnesium	19,3 mg/l	—	—	Single value
Oxygen	12,3 mg/l	—	—	Single value
Phosphate	<0,6 mg/l below limit of quantification	—	—	Single value
Potassium	1,4 mg/l	—	—	Single value
Saturation index	0,19	—	—	Single value
Total hardness	2,85 mmol/l	—	—	Single value

Source: https://www.zv-gaeuwasser.de/fileadmin/Dateien/Dateien/Pruefbericht_2026.pdf · 22.01.2026 · retrieved on 13/07/2026

Postcodes in this zone: 72160

HB Finkenberg

Zweckverband Wasserversorgung Kleine Kinzig

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

No core values are available for this zone yet.

Postcodes in this zone: 72160

HB Winterhalde

Zweckverband Wasserversorgung Kleine Kinzig

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

No core values are available for this zone yet.

Postcodes in this zone: 72160

Horb a. N.-Ahldorf, Betra, Dettensee, Isenburg, Nordstetten und Mühringen (Nordstetter Wasserversorgungsgruppe)

Stadtwerke Horb a. N.

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

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness

8.2 °dH

Hardness range 2 (weich)

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Further parameters (2)

Further parameters – Horb a. N.-Ahldorf, Betra, Dettensee, Isenburg, Nordstetten und Mühringen (Nordstetter Wasserversorgungsgruppe)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Hardness range (WRMG)	2 (weich)	—	—	Single value · Horb a. N.-Ahldorf, Betra, Dettensee, Isenburg, Nordstetten und Mühringen (Nordstetter Wasserversorgungsgruppe)
Total hardness	8,2 ° dH	—	—	Single value · Horb a. N.-Ahldorf, Betra, Dettensee, Isenburg, Nordstetten und Mühringen (Nordstetter Wasserversorgungsgruppe)

Source: https://www.horb.de/resources/02%20Datenobjekte/Stadtwerke/Info_Trinkwasserversorgung_Dezember_2024.pdf · retrieved on 11/07/2026

Postcodes in this zone: 72160

Horb a. N.-Altheim, Ihlingen und Rexingen

Stadtwerke Horb a. N.

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

Water hardness

14.7 °dH

Hardness range 3

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Further parameters (2)

Further parameters – Horb a. N.-Altheim, Ihlingen und Rexingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Hardness range (WRMG)	3	—	—	Single value · Horb a. N.-Altheim, Ihlingen und Rexingen
Total hardness	14,7 ° dH	—	—	Single value · Horb a. N.-Altheim, Ihlingen und Rexingen

Source: https://www.horb.de/resources/02%20Datenobjekte/Stadtwerke/Info_Trinkwasserversorgung_Dezember_2024.pdf · retrieved on 11/07/2026

Postcodes in this zone: 72160

Horb a. N.-Bildechingen und Mühlen (Gäuwasserversorgung)

Stadtwerke Horb a. N.

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

Water hardness

ca. 16,5 ° dH

Hardness range 3

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Further parameters (2)

Further parameters – Horb a. N.-Bildechingen und Mühlen (Gäuwasserversorgung)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Hardness range (WRMG)	3	—	—	Single value · Horb a. N.-Bildechingen und Mühlen (Gäuwasserversorgung)
Total hardness	ca. 16,5 ° dH	—	—	Single value · Horb a. N.-Bildechingen und Mühlen (Gäuwasserversorgung)

Source: https://www.horb.de/resources/02%20Datenobjekte/Stadtwerke/Info_Trinkwasserversorgung_Dezember_2024.pdf · retrieved on 11/07/2026

Postcodes in this zone: 72160

Horb a. N.-Bittelbronn, Dettlingen, Dießen und Grünmettstetten (Wasserversorgung Haugenstein)

Stadtwerke Horb a. N.

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

Water hardness

16.5 °dH

Hardness range 3

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Further parameters (2)

Further parameters – Horb a. N.-Bittelbronn, Dettlingen, Dießen und Grünmettstetten (Wasserversorgung Haugenstein)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Hardness range (WRMG)	3	—	—	Single value · Horb a. N.-Bittelbronn, Dettlingen, Dießen und Grünmettstetten (Wasserversorgung Haugenstein)
Total hardness	16,5 ° dH	—	—	Single value · Horb a. N.-Bittelbronn, Dettlingen, Dießen und Grünmettstetten (Wasserversorgung Haugenstein)

Source: https://www.horb.de/resources/02%20Datenobjekte/Stadtwerke/Info_Trinkwasserversorgung_Dezember_2024.pdf · retrieved on 11/07/2026

Postcodes in this zone: 72160

Horb a. N.-Dettingen

Stadtwerke Horb a. N.

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

Water hardness

15.1 °dH

Hardness range 3

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Further parameters (2)

Further parameters – Horb a. N.-Dettingen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Hardness range (WRMG)	3	—	—	Single value · Horb a. N.-Dettingen
Total hardness	15,1 ° dH	—	—	Single value · Horb a. N.-Dettingen

Source: https://www.horb.de/resources/02%20Datenobjekte/Stadtwerke/Info_Trinkwasserversorgung_Dezember_2024.pdf · retrieved on 11/07/2026

Postcodes in this zone: 72160

Frequently asked questions about drinking water in Horb am Neckar

How hard is the water in Horb am Neckar?: Zweckverband Wasserversorgung Kleine Kinzig publishes the hardness range 3,3 for the supply zone alpirsbach gesamt. 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: 09.12.2021, retrieved on 13/07/2026.
How much nitrate is in the drinking water in Horb am Neckar?: Zweckverband Wasserversorgung Kleine Kinzig publishes a nitrate value of 1,3 mg/L for the supply zone alpirsbach gesamt. The statutory parametric value is 50 mg/l; the measured value represents 3 % of the parametric value. Basis: 09.12.2021, retrieved on 13/07/2026.
Who supplies the drinking water in Horb am Neckar?: Zweckverband Wasserversorgung Kleine Kinzig. The values shown here come from the supply zone alpirsbach gesamt 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.