Skip to content
maunawai.info

Drinking water in Steinenbronn

One supply zone, water supplier: Zweckverband Ammertal-Schönbuchgruppe (ASG).

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.

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

Water hardness
12.1 °dH
Hardness range mittel
Key values Mischwasser
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 9,3 mg/l 50 mg/l
19 %
Mean · Mischwasser
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Mischwasser
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml Mean · Mischwasser
Sulphate 28,5 mg/l 250 mg/l
11 %
Mean · Mischwasser
Sodium 12 mg/l 200 mg/l
6 %
Mean · Mischwasser

* 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 (55 — most recent value per parameter)

Microbiology (2)

Microbiology – Mischwasser
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml Mean · Mischwasser
Intestinal enterococci 0 KBE/100ml 0/100 ml Mean · Mischwasser

Chemical parameters (30)

Chemical parameters – 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 % *
Mean · Mischwasser
Antimony < 0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Mean · Mischwasser
Arsenic < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Mischwasser
Benzene < 0,00025 mg/l
below limit of quantification
1 µg/l
< 25 % *
Mean · Mischwasser
Benzo(a)pyrene < 0,000001 mg/l
below limit of quantification
10 ng/l
< 10 % *
Mean · Mischwasser
Benzo(b)fluoranthene < 0,000001 mg/l
below limit of quantification
Mean · Mischwasser
Benzo(ghi)perylene < 0,000001 mg/l
below limit of quantification
Mean · Mischwasser
Benzo(k)fluoranthene < 0,000001 mg/l
below limit of quantification
Mean · Mischwasser
Bisphenol A < 0,0005 mg/l
below limit of quantification
2.5 µg/l
< 20 % *
Mean · Mischwasser
Boron 0,03 mg/l 1 mg/l
3 %
Mean · Mischwasser
Bromate < 0,0025 mg/l
below limit of quantification
10 µg/l
< 25 % *
Mean · Mischwasser
Cadmium < 0,0001 mg/l
below limit of quantification
3 µg/l
< 3 % *
Mean · Mischwasser
Chlorate < 0,02 mg/l
below limit of quantification
70 µg/l
< 29 % *
Mean · Mischwasser
Chlorite < 0,05 mg/l
below limit of quantification
0.2 mg/l
< 25 % *
Mean · Mischwasser
Chromium < 0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Mean · Mischwasser
Copper 0,0025 mg/l 2 mg/l
0.1 %
Mean · Mischwasser
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Mean · Mischwasser
Fluoride 0,165 mg/l 1.5 mg/l
11 %
Mean · Mischwasser
Haloacetic acids (HAA) < 0,001 mg/l
below limit of quantification
Mean · Mischwasser
Indeno(1,2,3-cd)pyrene < 0,000001 mg/l
below limit of quantification
Mean · Mischwasser
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Mischwasser
Mercury < 0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Mean · Mischwasser
Nickel 0,002 mg/l 20 µg/l
10 %
Mean · Mischwasser
Nitrate 9,3 mg/l 50 mg/l
19 %
Mean · Mischwasser
Nitrite < 0,1 mg/l
below limit of quantification
0.5 mg/l
< 20 % *
Mean · Mischwasser
Pesticides — Total n.n. mg/l
not detectable
0.5 µg/l Mean · Mischwasser
Selenium < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Mischwasser
Trihalomethanes — Total n.b. mg/l
not determined
50 µg/l Mean · Mischwasser
Uranium 0,0004 mg/l 10 µg/l
4 %
Mean · Mischwasser
Vinyl chloride < 0,0005 mg/l
below limit of quantification
0.5 µg/l
< 100 % *
Mean · Mischwasser

* 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.

Indicator parameters (16)

Indicator parameters – Mischwasser
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Mean · Mischwasser
Ammonium < 0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Mean · Mischwasser
Calcite dissolution capacity -11,5 mg/l 5 mg/l CaCO3 Mean · Mischwasser
Chloride 24 mg/l 250 mg/l
10 %
Mean · Mischwasser
Coliform bacteria 0 KBE/100ml 0/100 ml Mean · Mischwasser
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Mean · Mischwasser
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Mean · Mischwasser
Conductivity (25 °C) 459,5 µS/cm 2,790 µS/cm Mean · Mischwasser
Iron < 0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Mean · Mischwasser
Manganese < 0,001 mg/l
below limit of quantification
50 µg/l
< 2 % *
Mean · Mischwasser
Odour ohne TON für den Verbraucher annehmbar Mean · Mischwasser
Sodium 12 mg/l 200 mg/l
6 %
Mean · Mischwasser
Sulphate 28,5 mg/l 250 mg/l
11 %
Mean · Mischwasser
Taste neutral für den Verbraucher annehmbar Mean · Mischwasser
Total organic carbon (TOC) 0,55 mg/l ohne anormale Veränderung Mean · Mischwasser
Turbidity < 0,1 NTU
below limit of quantification
1 NTU Mean · Mischwasser

* 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.

Further parameters (7)

Further parameters – Mischwasser
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3,55 mmol/l Mean · Mischwasser
Base capacity to pH 8.2 0,0635 mmol/l Mean · Mischwasser
Calcium 57,9 mg/l Mean · Mischwasser
Hardness range (WRMG) mittel Mean · Mischwasser
Magnesium 17,2 mg/l Mean · Mischwasser
Potassium 2,6 mg/l Mean · Mischwasser
Total hardness 2,15 mmol/l Mean · Mischwasser

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.asg-wasser.de/wGlobal/wGlobal/scripts/php/asgPdf.php?id=9 · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Postcodes in this zone: 71144

Frequently asked questions about drinking water in Steinenbronn

How hard is the water in Steinenbronn?
Zweckverband Ammertal-Schönbuchgruppe (ASG) publishes a total hardness of 2,15 mmol/l for the supply zone Mischwasser — that corresponds to 12.1 °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: Publication by the water supplier, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Steinenbronn?
Zweckverband Ammertal-Schönbuchgruppe (ASG) publishes a nitrate value of 9,3 mg/l for the supply zone Mischwasser. The statutory parametric value is 50 mg/l; the measured value represents 19 % of the parametric value. Basis: Publication by the water supplier, retrieved on 11/07/2026.
Who supplies the drinking water in Steinenbronn?
Zweckverband Ammertal-Schönbuchgruppe (ASG). The values shown here come from the supply zone Mischwasser 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.