How much nitrate is in the drinking water in Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.?

Wasserversorgung Balsthal publishes a nitrate value of 7.6 mg/l for the supply zone Balsthal. The statutory parametric value is 40 mg/l; the measured value represents 19 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Drinking water in Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.

Q: How hard is the water in Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.?

Wasserversorgung Balsthal publishes a total hardness of 23.8 °fH for the supply zone Balsthal — 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.

Q: Who supplies the drinking water in Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.?

Wasserversorgung Balsthal. The values shown here come from the supply zone Balsthal 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.

2 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.

Balsthal

Wasserversorgung Balsthal

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 Balsthal
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	7.6 mg/l	40 mg/l	19 %	Mean · Balsthal
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Balsthal
Sulphate	8.1 mg/l	—	—	Mean · Balsthal
Sodium	3 mg/l	200 mg/l	2 %	Mean · Balsthal

Show all recorded parameters (15 — most recent value per parameter)

Microbiology (3)

Microbiology – Balsthal
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	1.5 KBE/ml	300 1/ml	—	Mean · Balsthal
Escherichia coli (E. coli)	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Balsthal
Intestinal enterococci	nn not detectable Unit not stated in the document	0/100 ml	—	Maximum · Median nn · Balsthal

Chemical parameters (1)

Chemical parameters – Balsthal
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	7.6 mg/l	40 mg/l	19 %	Mean · Balsthal

Indicator parameters (6)

Indicator parameters – Balsthal
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	3.6 mg/l	—	—	Mean · Balsthal
pH	7.4	—	—	Mean · Balsthal
Sodium	3 mg/l	200 mg/l	2 %	Mean · Balsthal
Sulphate	8.1 mg/l	—	—	Mean · Balsthal
Temperature	11.6 °C	—	—	Mean · Balsthal
Turbidity	0.1 TE/F	—	—	Mean · Balsthal

Further parameters (5)

Further parameters – Balsthal
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	90.2 mg/l	—	—	Mean · Balsthal
Dissolved organic carbon (DOC)	0.45 mg/l	—	—	Mean · Balsthal
Magnesium	3.1 mg/l	—	—	Mean · Balsthal
Potassium	0.9 mg/l	—	—	Mean · Balsthal
Total hardness	23.8 °fH	—	—	Mean · Balsthal

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/781/wasserversorgung-balsthal/3324/balsthal · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 4710

Show 1 more supply zone

Versorgungsgebiet Grieskirchen

Wasserverband Grieskirchen und Umgebung

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

Water hardness

19.7 °dH

Hardness range hard

Key values Versorgungsgebiet Grieskirchen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	10,90 mg/l	50 mg/l	22 %	Single value
Sulphate	54,50 mg/l	250 mg/l	22 %	Single value
Sodium	4,98 mg/l	200 mg/l	2 %	Single value

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

Chemical parameters (2)

Chemical parameters – Versorgungsgebiet Grieskirchen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	10,90 mg/l	50 mg/l	22 %	Single value
Pesticides	Pestizide im untersuchten Umfang nicht bestimmbar µg/l not determined	0.1 µg/l	—	Single value

Indicator parameters (4)

Indicator parameters – Versorgungsgebiet Grieskirchen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	8,00 mg/l	200 mg/l	4 %	Single value
pH	7,40	6,5–9,5	—	Single value
Sodium	4,98 mg/l	200 mg/l	2 %	Single value
Sulphate	54,50 mg/l	250 mg/l	22 %	Single value

Further parameters (5)

Further parameters – Versorgungsgebiet Grieskirchen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	95,10 mg/l	400 mg/l	24 %	Single value
Carbonate hardness	16,20 °dH	—	—	Single value
Magnesium	27,80 mg/l	150 mg/l	19 %	Single value
Potassium	1,54 mg/l	50 mg/l	3 %	Single value
Total hardness	19,70 °dH	—	—	Single value

Source: https://0501.nccdn.net/4_2/000/000/009/ce4/trinkwasserinformation_grieskirchen.pdf · 2026 · retrieved on 11/08/2026

Postcodes in this zone: 4710

Frequently asked questions about drinking water in Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.

How hard is the water in Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.?: Wasserversorgung Balsthal publishes a total hardness of 23.8 °fH for the supply zone Balsthal — 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 Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.?: Wasserversorgung Balsthal publishes a nitrate value of 7.6 mg/l for the supply zone Balsthal. The statutory parametric value is 40 mg/l; the measured value represents 19 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Grieskirchen, Pollham, St. Georgen bei Grieskirchen u.a.?: Wasserversorgung Balsthal. The values shown here come from the supply zone Balsthal 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.