Drinking water in 91785
One supply zone, water supplier: Wasser- und Abwasserzweckverband Rezattal.
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.
ON Röttenbach - KiTa- Haus der Kinder / UG, Heizraum, PNH bei WZ
Wasser- und Abwasserzweckverband RezattalAssigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.
Water hardness
8.9 °dH
Hardness range medium
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Nitrate | <1 mg/l below limit of quantification | 50 mg/l | < 2 % * | Single value |
| Lead | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Sulphate | 23 mg/l | 250 mg/l | 9 % | Single value |
| Sodium | 8,8 mg/l | 200 mg/l | 4 % | Single value |
* 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 (106 — most recent value per parameter)
Microbiology (1)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Intestinal enterococci | 0 KBE/100ml | 0/100 ml | — | Single value |
Chemical parameters (77)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| 1,2-dichloroethane | <0,5 µg/l below limit of quantification | 3 µg/l | < 17 % * | Single value |
| 2,4-D | <0,03 µg/l below limit of quantification | — | — | Single value |
| Antimony | <0,001 mg/l below limit of quantification | 5 µg/l | < 20 % * | Single value |
| Arsenic | 0,005 mg/l | 10 µg/l | 50 % | Single value |
| Atrazine | <0,03 µg/l below limit of quantification | — | — | Single value |
| Azoxystrobin | <0,03 µg/l below limit of quantification | — | — | Single value |
| Bentazone | <0,03 µg/l below limit of quantification | — | — | Single value |
| Benzene | <0,3 µg/l below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Benzo(a)pyrene | <0,002 µg/l below limit of quantification | 10 ng/l | < 20 % * | Single value |
| Benzo(b)fluoranthene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Benzo(ghi)perylene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Benzo(k)fluoranthene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Boron | 0,22 mg/l | 1 mg/l | 22 % | Single value |
| Boscalid | <0,03 µg/l below limit of quantification | — | — | Single value |
| Bromacil | <0,03 µg/l below limit of quantification | — | — | Single value |
| Bromate | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Bromoxynil | <0,03 µg/l below limit of quantification | — | — | Single value |
| Cadmium | <0,0009 mg/l below limit of quantification | 3 µg/l | < 30 % * | Single value |
| Carbendazim | <0,03 µg/l below limit of quantification | — | — | Single value |
| Carbetamide | <0,03 µg/l below limit of quantification | — | — | Single value |
| Chloridazon | <0,03 µg/l below limit of quantification | — | — | Single value |
| Chlorotoluron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Chromium | <0,0005 mg/l below limit of quantification | 25 µg/l | < 2 % * | Single value |
| Clopyralid | <0,03 µg/l below limit of quantification | — | — | Single value |
| Copper | <0,02 mg/l below limit of quantification | 2 mg/l | < 1 % * | Single value |
| Cyanide | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Single value |
| Desethylatrazine | <0,03 µg/l below limit of quantification | — | — | Single value |
| Desethylterbuthylazine | <0,03 µg/l below limit of quantification | — | — | Single value |
| Dicamba | <0,03 µg/l below limit of quantification | — | — | Single value |
| Dichlorprop | <0,03 µg/l below limit of quantification | — | — | Single value |
| Diflufenican | <0,03 µg/l below limit of quantification | — | — | Single value |
| Dimefuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Dimethachlor | <0,03 µg/l below limit of quantification | — | — | Single value |
| Dimethenamid | <0,03 µg/l below limit of quantification | — | — | Single value |
| Dimethoate | <0,03 µg/l below limit of quantification | — | — | Single value |
| Diuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Ethidimuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Ethofumesate | <0,03 µg/l below limit of quantification | — | — | Single value |
| Flufenacet | <0,03 µg/l below limit of quantification | — | — | Single value |
| Fluoride | 1,2 mg/l | 1.5 mg/l | 80 % | Single value |
| Glyphosate | <0,03 µg/l below limit of quantification | — | — | Single value |
| Imidacloprid | <0,03 µg/l below limit of quantification | — | — | Single value |
| Indeno(1,2,3-cd)pyrene | <0,01 µg/l below limit of quantification | — | — | Single value |
| Isoproturon | <0,03 µg/l below limit of quantification | — | — | Single value |
| Lead | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Lenacil | <0,03 µg/l below limit of quantification | — | — | Single value |
| MCPA | <0,03 µg/l below limit of quantification | — | — | Single value |
| Mecoprop | <0,03 µg/l below limit of quantification | — | — | Single value |
| Mercury | <0,0003 mg/l below limit of quantification | 1 µg/l | < 30 % * | Single value |
| Metalaxyl | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metamitron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metazachlor | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metobromuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metolachlor | <0,03 µg/l below limit of quantification | — | — | Single value |
| Metribuzin | <0,03 µg/l below limit of quantification | — | — | Single value |
| Nickel | <0,005 mg/l below limit of quantification | 20 µg/l | < 25 % * | Single value |
| Nicosulfuron | <0,03 µg/l below limit of quantification | — | — | Single value |
| Nitrate | <1 mg/l below limit of quantification | 50 mg/l | < 2 % * | Single value |
| Nitrite | <0,02 mg/l below limit of quantification | 0.5 mg/l | < 4 % * | Single value |
| Pendimethalin | <0,03 µg/l below limit of quantification | — | — | Single value |
| Propazine | <0,03 µg/l below limit of quantification | — | — | Single value |
| Propiconazole | <0,03 µg/l below limit of quantification | — | — | Single value |
| Prosulfocarb | <0,03 µg/l below limit of quantification | — | — | Single value |
| Quinmerac | <0,03 µg/l below limit of quantification | — | — | Single value |
| Selenium | <0,003 mg/l below limit of quantification | 10 µg/l | < 30 % * | Single value |
| Simazine | <0,03 µg/l below limit of quantification | — | — | Single value |
| Tebuconazole | <0,03 µg/l below limit of quantification | — | — | Single value |
| Terbuthylazine | <0,03 µg/l below limit of quantification | — | — | Single value |
| Tetrachloroethene | <0,2 µg/l below limit of quantification | — | — | Single value |
| Thiacloprid | <0,03 µg/l below limit of quantification | — | — | Single value |
| Triadimenol | <0,03 µg/l below limit of quantification | — | — | Single value |
| Tribromomethane (bromoform) | <0,6 µg/l below limit of quantification | — | — | Single value |
| Trichloroethene | <0,2 µg/l below limit of quantification | — | — | Single value |
| Trichloromethane (chloroform) | <0,8 µg/l below limit of quantification | — | — | Single value |
| Trihalomethanes — Total | n.n. µg/l not detectable | 50 µg/l | — | Single value |
| Uranium | <2,0 µg/l below limit of quantification | 10 µg/l | < 20 % * | Single value |
| Vinyl chloride | <0,00015 mg/l below limit of quantification | 0.5 µg/l | < 30 % * | Single value |
* 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 (18)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Aluminium | <0,030 mg/l below limit of quantification | 0.2 mg/l | < 15 % * | Single value |
| Ammonium | <0,10 mg/l below limit of quantification | 0.5 mg/l | < 20 % * | Single value |
| Calcite dissolution capacity | 0 mg/l | 5 mg/l CaCO3 | — | Single value |
| Chloride | 12 mg/l | 250 mg/l | 5 % | Single value |
| Clostridium perfringens (including spores) | 0 KBE/100ml | 0/100 ml | — | Single value |
| Coliform bacteria | 0 KBE/100ml | 0/100 ml | — | Single value |
| Colony count 22 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Colony count 36 °C | 0 KBE/ml | ohne anormale Veränderung | — | Single value |
| Iron | <0,01 mg/l below limit of quantification | 0.2 mg/l | < 5 % * | Single value |
| Manganese | <0,01 mg/l below limit of quantification | 50 µg/l | < 20 % * | Single value |
| Odour | ohne | für den Verbraucher annehmbar | — | Single value |
| pH | 7,63 | 6,5–9,5 | — | Single value |
| Sodium | 8,8 mg/l | 200 mg/l | 4 % | Single value |
| Sulphate | 23 mg/l | 250 mg/l | 9 % | Single value |
| Taste | ohne | für den Verbraucher annehmbar | — | Single value |
| Temperature | 20,3 °C | — | — | Single value |
| Total organic carbon (TOC) | <0,40 mg/l below limit of quantification | ohne anormale Veränderung | — | Single value |
| Turbidity | <0,1 FNU below limit of quantification | 1 NTU | — | Single value |
* 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 (10)
| Parameter | Value | Parametric value | Share of the parametric value | Reference |
|---|---|---|---|---|
| Anion quotient | 0,3 | — | — | Single value |
| Calcite precipitation capacity | 1,8 mg/l | — | — | Single value |
| Calcium | 49 mg/l | — | — | Single value |
| Copper quotient | 13,3 | — | — | Single value |
| Magnesium | 9 mg/l | — | — | Single value |
| Oxygen | 7,1 mg/l | — | — | Single value |
| Potassium | 15 mg/l | — | — | Single value |
| Saturation index | 7,57 | — | — | Single value |
| Total hardness | 8,9 °dH | — | — | Single value |
| Trickling quotient | n.b. not determined | — | — | 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.roettenbach.de/fileadmin/user_upload/PDF/Trinkwasseruntersuchung_2025_-_Gesamt.pdf · 10.09.2025 · Probenahme 20.08.2025 (Prüfzeitraum 20.08.2025 - 10.09.2025) · retrieved on 13/07/2026
Frequent questions about postcode 91785
- How hard is the water in Postcode 91785?
- Wasser- und Abwasserzweckverband Rezattal publishes a total hardness of 8.9 °dH for the supply zone ON Röttenbach - KiTa- Haus der Kinder / UG, Heizraum, PNH bei WZ (hardness range medium). 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: 10.09.2025, retrieved on 13/07/2026.
- How much nitrate is in the drinking water in Postcode 91785?
- Wasser- und Abwasserzweckverband Rezattal publishes a nitrate value of <1 mg/l for the supply zone ON Röttenbach - KiTa- Haus der Kinder / UG, Heizraum, PNH bei WZ. The statutory parametric value is 50 mg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. Basis: 10.09.2025, retrieved on 13/07/2026.
- Who supplies the drinking water in Postcode 91785?
- Wasser- und Abwasserzweckverband Rezattal. The values shown here come from the supply zone ON Röttenbach - KiTa- Haus der Kinder / UG, Heizraum, PNH bei WZ 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.