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Drinking water in Rietberg

4 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.

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
12.1 °dH
Hardness range mittel
Key values verl gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 2,7 mg/l 50 mg/l
5 %
Mean · Source [3]
Lead <0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Mean · Source [3]
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Mean · Source [3]
Sulphate 37 mg/l 250 mg/l
15 %
Mean · Source [3]
Sodium 14 mg/l 200 mg/l
7 %
Mean · Source [3]

* 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 (181 — most recent value per parameter)

Microbiology (2)

Microbiology – verl gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Mean · Source [3]
Intestinal enterococci 0 KBE/100 ml 0/100 ml Mean · Source [3]

Chemical parameters (101)

Chemical parameters – verl gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,1,1-Trichloroethane < 0,1 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
1,2-dichloroethane < 0,3 µg/l
below limit of quantification
3 µg/l
< 10 % *
Mean · Q2 2020 · Source [4]
Aclonifen < 0,025
below limit of quantification
Mean · 2/2020 · Source [2]
Amidosulfuron
not determined
Mean · 2/2020 · Source [2]
AMPA < 0,020 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Antimony <0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Mean · Source [3]
Arsenic <0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Mean · Source [3]
Atrazine < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Bentazone < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [5]
Benzene < 0,2 µg/l
below limit of quantification
1 µg/l
< 20 % *
Mean · Q2 2020 · Source [4]
Benzo(a)pyrene < 0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Mean · Q2/2020 · Source [5]
Benzo(b)fluoranthene < 0,0100 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Benzo(ghi)perylene < 0,0050 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Benzo(k)fluoranthene < 0,0050 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Bifenox < 0,050
below limit of quantification
Mean · 2/2020 · Source [2]
Bisphenol A <0,015 µg/l
below limit of quantification
2.5 µg/l
< 0.6 % *
Mean · Source [3]
Boron <0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Mean · Source [3]
Bromacil < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Bromate <0,0030 mg/l
below limit of quantification
10 µg/l
< 30 % *
Mean · Source [3]
Bromoxynil < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Cadmium <0,0003 mg/l
below limit of quantification
3 µg/l
< 10 % *
Mean · Source [3]
Carbendazim < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [6]
Carbetamide < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Chloridazon < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Chlorothalonil < 0,025
below limit of quantification
Mean · 2/2020 · Source [2]
Chlorotoluron < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Chromium <0,0004 mg/l
below limit of quantification
25 µg/l
< 2 % *
Mean · Source [3]
cis-1,2-Dichloroethene < 1,0 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Clopyralid < 0,050 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Clothianidin
not determined
Mean · 2/2020 · Source [2]
Copper <0,005 mg/l
below limit of quantification
2 mg/l
< 0.3 % *
Mean · Source [3]
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Mean · Source [3]
Desethylatrazine < 0,025 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Desethylterbuthylazine < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [1]
Desisopropylatrazine < 0,025 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Dicamba < 0,050 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Dichloromethane < 1,0 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Dichlorprop < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Dimefuron < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Dimethachlor < 0,050 µg/l
below limit of quantification
Mean · 2019 · Source [5]
Dimethenamid < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [5]
Diuron < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Epoxiconazole < 0,050
below limit of quantification
Mean · 2/2020 · Source [2]
Ethofumesate < 0,050 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Fenpropimorph < 0,050
below limit of quantification
Mean · 2/2020 · Source [2]
Flazasulfuron
not determined
Mean · 2/2020 · Source [2]
Florasulam
not determined
Mean · 2/2020 · Source [2]
Flufenacet < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [5]
Fluoride 0,10 mg/l 1.5 mg/l
7 %
Mean · Source [3]
Flupyrsulfuron-methyl
not determined
Mean · 2/2020 · Source [2]
Fluroxypyr < 0,025
below limit of quantification
Mean · 2/2020 · Source [2]
Flurtamone < 0,025
below limit of quantification
Mean · 2/2020 · Source [2]
Foramsulfuron
not determined
Mean · 2/2020 · Source [2]
Glyphosate < 0,020 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Hexazinone < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Imidacloprid < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [6]
Iodosulfuron-methyl
not determined
Mean · 2/2020 · Source [2]
Ioxynil < 0,025
below limit of quantification
Mean · 2/2020 · Source [2]
Isoproturon < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Lead <0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Mean · Source [3]
Mercury <0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Mean · Source [3]
Mesosulfuron-methyl
not determined
Mean · 2/2020 · Source [2]
Metalaxyl < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Metamitron < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Metazachlor < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [5]
Methabenzthiazuron < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Metolachlor < 0,050 µg/l
below limit of quantification
Mean · 2019 · Source [5]
Metosulam
not determined
Mean · 2/2020 · Source [2]
Metribuzin < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Metsulfuron-methyl
not determined
Mean · 2/2020 · Source [2]
Nickel 0,003 mg/l 20 µg/l
15 %
Mean · Source [3]
Nicosulfuron < 0,03 µg/l
below limit of quantification
Mean · 2019 · Source [6]
Nitrate 2,7 mg/l 50 mg/l
5 %
Mean · Source [3]
Nitrite <0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Mean · Source [3]
Pendimethalin < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Pesticides — Total 0 µg/l 0.5 µg/l
0 %
Mean · Quartal 2/2020 · Source [6]
Pethoxamid < 0,025
below limit of quantification
Mean · 2/2020 · Source [2]
Polycyclic aromatic hydrocarbons 0 µg/l 0.1 µg/l
0 %
Mean · Q2/2020 · Source [5]
Propyzamide < 0,050
below limit of quantification
Mean · 2/2020 · Source [2]
Prosulfuron
not determined
Mean · 2/2020 · Source [2]
Quinmerac < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [5]
Rimsulfuron
not determined
Mean · 2/2020 · Source [2]
Selenium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Source [3]
Simazine < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Tebuconazole < 0,050 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Terbuthylazine < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Terbutryn < 0,025 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Tetrachloroethene < 0,1 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Tetrachloroethene and Trichloroethene (sum) <0,05 µg/l
below limit of quantification
10 µg/l
< 0.5 % *
Mean · Source [3]
Tetrachloromethane < 0,10 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Thiacloprid < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [6]
Thiamethoxam
not determined
Mean · 2/2020 · Source [2]
trans-1,2-Dichloroethene < 1,0 µg/l
below limit of quantification
Mean · Q2 2020 · Source [7]
Tri-allate < 0,050 µg/l
below limit of quantification
Mean · Quartal 2/2020 · Source [6]
Tribromomethane (bromoform) < 0,1 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Trichloroethene < 0,1 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Trichloromethane (chloroform) < 0,1 µg/l
below limit of quantification
Mean · Q2/2020 · Source [5]
Triflusulfuron-methyl
not determined
Mean · 2/2020 · Source [2]
Trihalomethanes — Total 0 µg/l 50 µg/l
0 %
Mean · Q2/2020 · Source [5]
Tritosulfuron
not determined
Mean · 2/2020 · Source [2]
Uranium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean · Source [3]

* 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 (9)

PFAS – verl gesamt
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutanoic acid (PFBA) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Perfluorodecane sulfonic acid (PFDS) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Perfluorodecanoic acid (PFDA) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Perfluoroheptane sulfonic acid (PFHpS) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Perfluoroheptanoic acid (PFHpA) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Perfluorohexanoic acid (PFHxA) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Perfluorononane sulfonic acid (PFNS) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Perfluorononanoic acid (PFNA) < 0,010 µg/l
below limit of quantification
Mean · Q2 2020 · Source [8]
Trifluoroacetic acid (TFA) 0,3 µg/l 60 µg/l
UBA guide value
0.5 %
Mean · 2019 · Source [1]

For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.

Indicator parameters (18)

Indicator parameters – verl gesamt
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,055 mg/l 0.2 mg/l
28 %
Mean · Source [3]
Ammonium <0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Mean · Source [3]
Calcite dissolution capacity 0 mg/l 5 mg/l CaCO3 Mean · Source [3]
Chloride 21 mg/l 250 mg/l
8 %
Mean · Source [3]
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml Mean · Source [3]
Coliform bacteria 0 KBE/100 ml 0/100 ml Mean · Source [3]
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Mean · Source [3]
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Mean · Source [3]
Colour 0,40 1/m 0.5 m⁻¹ Mean · Source [3]
Conductivity (25 °C) 475 µS/cm 2,790 µS/cm Mean · Source [3]
Iron 0,013 mg/l 0.2 mg/l
6 %
Mean · Source [3]
Manganese <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Mean · Source [3]
pH 7,53 6,5–9,5 Mean · Source [3]
Sodium 14 mg/l 200 mg/l
7 %
Mean · Source [3]
Sulphate 37 mg/l 250 mg/l
15 %
Mean · Source [3]
Temperature 10,8 °C Mean · Source [3]
Total organic carbon (TOC) 4,7 mg/l ohne anormale Veränderung Mean · Source [3]
Turbidity 0,11 FNU 1 NTU Mean · Source [3]

* 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.

Radiology (2)

Radiology – verl gesamt
Parameter Value Parametric value Share of the parametric value Reference
Indicative dose <0,1 mSv/a
below limit of quantification
0.1 mSv/a Mean · Source [3]
Radon-222 <10 Bq/l
below limit of quantification
100 Bq/l Mean · Source [3]

Further parameters (49)

Further parameters – verl gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,4-Dioxane 0,06 µg/l Mean · Q2 2020 · Source [1]
Acesulfame 0,17 µg/l Mean · Q2 2020 · Source [1]
Acid capacity to pH 4.3 3,53 mmol/l Mean · Source [3]
Amidotrizoic acid < 0,05 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Atenolol < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Base capacity to pH 8.2 0,23 mmol/l Mean · Source [3]
Bezafibrate < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Calcium 82 mg/l Mean · Source [3]
Candesartan < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Carbamazepine < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Carbonate hardness 9,9 °dH Mean · Source [3]
Clarithromycin < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Clofibric acid < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Diazepam µg/l
not determined
Mean · Q2 2020 · Source [7]
Diclofenac < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Erythromycin < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Ethylbenzene < 1,0 µg/l
below limit of quantification
Mean · Q2 2020 · Source [7]
Gabapentin < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Guanylurea µg/l
not determined
Mean · Q2 2020 · Source [7]
Hardness range (WRMG) mittel Mean · Source [3]
Indomethacin µg/l
not determined
Mean · Q2 2020 · Source [7]
Iohexol < 0,05 µg/l
below limit of quantification
Mean · Q2 2020 · Source [7]
Iomeprol < 0,05 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Iopamidol < 0,05 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Iopromide < 0,05 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Irbesartan < 0,05 µg/l
below limit of quantification
Mean · Q2 2020 · Source [7]
Lamotrigine < 0,05 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Magnesium 2,9 mg/l Mean · Source [3]
Metformin < 0,020 µg/l
below limit of quantification
Mean · 2019 · Source [4]
Metoprolol < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Olmesartan < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Oxygen 9,6 mg/l Mean · Source [3]
Oxypurinol < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [7]
Phenazone < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Phosphate 0,04 mg/l Mean · Source [3]
Potassium 1,6 mg/l Mean · Source [3]
Primidone < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Propranolol < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Propyphenazone < 0,025 µg/l
below limit of quantification
Mean · 2019 · Source [4]
Silicate / silicic acid 12,6 mg/l Mean · Source [3]
Sotalol < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Sulfamethoxazole < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Toluene < 1,0 µg/l
below limit of quantification
Mean · Q2 2020 · Source [7]
Total hardness 12,1 °dH Mean · Source [3]
Tramadol < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [7]
Trimethoprim < 0,025 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Triphenyl phosphate < 0,020 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Valsartan < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]
Valsartanic acid < 0,050 µg/l
below limit of quantification
Mean · Q2 2020 · Source [4]

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.

Sources: [1] verl-90ab6f10e.html · Jahresmittel 2019 / Quartalsmittel 2/2020 · retrieved on 11/07/2026 [2] verl-90ab6f10d.html · Jahresmittel 2019 / Quartalsmittel 2/2020 · retrieved on 11/07/2026 [3] verl-90ab6f10ra.html · Jahresmittelwert · retrieved on 25/07/2026 [4] verl-90ab6f10rb.html · Jahresmittel 2019 / Quartalsmittel 2/2020 · retrieved on 25/07/2026 [5] verl-90ab6f10re.html · Jahresmittel 2019, Quartalsmittel 2/2020 · retrieved on 25/07/2026 [6] verl-90ab6f10rd.html · Jahresmittel 2019 / Quartalsmittel 2/2020 · retrieved on 25/07/2026 [7] verl-90ab6f10b.html · Jahresmittel 2019, Quartalsmittel 2/2020 · retrieved on 11/07/2026 [8] verl-90ab6f10rc.html · Jahresmittel 2019 und Quartalsmittel 2/2020 · retrieved on 25/07/2026

Postcodes in this zone: 33397

Show 3 more supply zones

Wasserwerk Bleiwäsche, Wasserverband Aabach-Talsperre, Bad Wünnenberg

VGW GmbH (Vereinigte Gas- und 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 31/12/2022. 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
8 °dH
Hardness range weich
Key values Wasserwerk Bleiwäsche, Wasserverband Aabach-Talsperre, Bad Wünnenberg
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 11,3 mg/l 50 mg/l
23 %
Mean
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Mean
Sulphate 31 mg/l 250 mg/l
12 %
Mean
Sodium 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 (54 — most recent value per parameter)

Microbiology (2)

Microbiology – Wasserwerk Bleiwäsche, Wasserverband Aabach-Talsperre, Bad Wünnenberg
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Mean
Intestinal enterococci 0 KBE/100 ml 0/100 ml Mean

Chemical parameters (23)

Chemical parameters – Wasserwerk Bleiwäsche, Wasserverband Aabach-Talsperre, Bad Wünnenberg
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,1 µg/l
below limit of quantification
3 µg/l
< 3 % *
Mean
Antimony <0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Mean
Arsenic <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Benzene <0,1 µg/l
below limit of quantification
1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Mean
Boron <0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Mean
Bromate <0,0030 mg/l
below limit of quantification
10 µg/l
< 30 % *
Mean
Cadmium <0,0003 mg/l
below limit of quantification
3 µg/l
< 10 % *
Mean
Chromium <0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Mean
Copper <0,005 mg/l
below limit of quantification
2 mg/l
< 0.3 % *
Mean
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Mean
Fluoride 0,05 mg/l 1.5 mg/l
3 %
Mean
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Mercury <0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Mean
Nickel 0,002 mg/l 20 µg/l
10 %
Mean
Nitrate 11,3 mg/l 50 mg/l
23 %
Mean
Nitrite <0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Mean
Pesticides — Total <0,025 µg/l
below limit of quantification
0.5 µg/l
< 5 % *
Mean
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
0.1 µg/l
< 5 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0,05 µg/l
below limit of quantification
10 µg/l
< 0.5 % *
Mean
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
50 µg/l
< 0.1 % *
Mean
Uranium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
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.

Indicator parameters (18)

Indicator parameters – Wasserwerk Bleiwäsche, Wasserverband Aabach-Talsperre, Bad Wünnenberg
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,015 mg/l 0.2 mg/l
8 %
Mean
Ammonium <0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Mean
Calcite dissolution capacity 0 mg/l 5 mg/l CaCO3 Mean
Chloride 8 mg/l 250 mg/l
3 %
Mean
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml Mean
Coliform bacteria 0 KBE/100 ml 0/100 ml Mean
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Mean
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Mean
Colour 0,10 1/m 0.5 m⁻¹ Mean
Conductivity (25 °C) 317 µS/cm 2,790 µS/cm Mean
Iron <0,010 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Mean
Manganese <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Mean
pH 8,03 6,5–9,5 Mean
Sodium 6 mg/l 200 mg/l
3 %
Mean
Sulphate 31 mg/l 250 mg/l
12 %
Mean
Temperature 8,3 °C Mean
Total organic carbon (TOC) 2,4 mg/l ohne anormale Veränderung Mean
Turbidity 0,10 FNU 1 NTU 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.

Further parameters (11)

Further parameters – Wasserwerk Bleiwäsche, Wasserverband Aabach-Talsperre, Bad Wünnenberg
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,17 mmol/l Mean
Base capacity to pH 8.2 0,03 mmol/l Mean
Calcium 49 mg/l Mean
Carbonate hardness 6,1 °dH Mean
Hardness range (WRMG) weich Mean
Magnesium 5,3 mg/l Mean
Oxygen 9,7 mg/l Mean
Phosphate <0,03 mg/l
below limit of quantification
Mean
Potassium 1,4 mg/l Mean
Silicate / silicic acid 4,0 mg/l Mean
Total hardness 8,0 °dH 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.

Postcodes in this zone: 33397

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 Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 2,7 mg/l 50 mg/l
5 %
Mean
Lead <0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Mean
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Mean
Sulphate 37 mg/l 250 mg/l
15 %
Mean
Sodium 14 mg/l 200 mg/l
7 %
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 (57 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (24)

Chemical parameters – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,05 µg/l
below limit of quantification
3 µg/l
< 2 % *
Mean
Antimony <0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Mean
Arsenic <0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Mean
Benzene <0,05 µg/l
below limit of quantification
1 µg/l
< 5 % *
Mean
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Mean
Bisphenol A <0,015 µg/l
below limit of quantification
2.5 µg/l
< 0.6 % *
Mean
Boron <0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Mean
Bromate <0,0030 mg/l
below limit of quantification
10 µg/l
< 30 % *
Mean
Cadmium <0,0003 mg/l
below limit of quantification
3 µg/l
< 10 % *
Mean
Chromium <0,0004 mg/l
below limit of quantification
25 µg/l
< 2 % *
Mean
Copper <0,005 mg/l
below limit of quantification
2 mg/l
< 0.3 % *
Mean
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Mean
Fluoride 0,10 mg/l 1.5 mg/l
7 %
Mean
Lead <0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Mean
Mercury <0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Mean
Nickel 0,003 mg/l 20 µg/l
15 %
Mean
Nitrate 2,7 mg/l 50 mg/l
5 %
Mean
Nitrite <0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Mean
Pesticides — Total <0,025 µg/l
below limit of quantification
0.5 µg/l
< 5 % *
Mean
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
0.1 µg/l
< 5 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0,05 µg/l
below limit of quantification
10 µg/l
< 0.5 % *
Mean
Trihalomethanes — Total <0,050 µg/l
below limit of quantification
50 µg/l
< 0.1 % *
Mean
Uranium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
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.

Indicator parameters (18)

Indicator parameters – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,055 mg/l 0.2 mg/l
28 %
Mean
Ammonium <0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Mean
Calcite dissolution capacity 0 mg/l 5 mg/l CaCO3 Mean
Chloride 21 mg/l 250 mg/l
8 %
Mean
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml Mean
Coliform bacteria 0 KBE/100 ml 0/100 ml Mean
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Mean
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Mean
Colour 0,40 1/m 0.5 m⁻¹ Mean
Conductivity (25 °C) 475 µS/cm 2,790 µS/cm Mean
Iron 0,013 mg/l 0.2 mg/l
6 %
Mean
Manganese <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Mean
pH 7,53 6,5–9,5 Mean
Sodium 14 mg/l 200 mg/l
7 %
Mean
Sulphate 37 mg/l 250 mg/l
15 %
Mean
Temperature 10,8 °C Mean
Total organic carbon (TOC) 4,7 mg/l ohne anormale Veränderung Mean
Turbidity 0,11 FNU 1 NTU 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.

Radiology (2)

Radiology – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Indicative dose <0,1 mSv/a
below limit of quantification
0.1 mSv/a Mean
Radon-222 <10 Bq/l
below limit of quantification
100 Bq/l Mean

Further parameters (11)

Further parameters – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3,53 mmol/l Mean
Base capacity to pH 8.2 0,23 mmol/l Mean
Calcium 82 mg/l Mean
Carbonate hardness 9,9 °dH Mean
Hardness range (WRMG) mittel Mean
Magnesium 2,9 mg/l Mean
Oxygen 9,6 mg/l Mean
Phosphate 0,04 mg/l Mean
Potassium 1,6 mg/l Mean
Silicate / silicic acid 12,6 mg/l Mean
Total hardness 12,1 °dH 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://sw-verl.de/app/uploads/2026/03/2025_WWM_00-0732_Muehlgrund.pdf · Jahresmittelwert 2025 · retrieved on 11/07/2026

Postcodes in this zone: 33397

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 31/12/2022. 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
12.3 °dH
Hardness range mittel
Key values Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3,5 mg/l 50 mg/l
7 %
Mean
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Mean
Sulphate 43 mg/l 250 mg/l
17 %
Mean
Sodium 14 mg/l 200 mg/l
7 %
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 (56 — most recent value per parameter)

Microbiology (2)

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

Chemical parameters (23)

Chemical parameters – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,1 µg/l
below limit of quantification
3 µg/l
< 3 % *
Mean
Antimony <0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Mean
Arsenic <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Benzene <0,1 µg/l
below limit of quantification
1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0,0025 µg/l
below limit of quantification
10 ng/l
< 25 % *
Mean
Boron <0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Mean
Bromate <0,0030 mg/l
below limit of quantification
10 µg/l
< 30 % *
Mean
Cadmium <0,0003 mg/l
below limit of quantification
3 µg/l
< 10 % *
Mean
Chromium <0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Mean
Copper <0,005 mg/l
below limit of quantification
2 mg/l
< 0.3 % *
Mean
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Mean
Fluoride 0,11 mg/l 1.5 mg/l
7 %
Mean
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Mercury <0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Mean
Nickel 0,002 mg/l 20 µg/l
10 %
Mean
Nitrate 3,5 mg/l 50 mg/l
7 %
Mean
Nitrite <0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Mean
Pesticides — Total <0,025 µg/l
below limit of quantification
0.5 µg/l
< 5 % *
Mean
Polycyclic aromatic hydrocarbons <0,005 µg/l
below limit of quantification
0.1 µg/l
< 5 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0,1 µg/l
below limit of quantification
10 µg/l
< 1 % *
Mean
Trihalomethanes — Total <0,100 µg/l
below limit of quantification
50 µg/l
< 0.2 % *
Mean
Uranium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
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.

Indicator parameters (18)

Indicator parameters – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,059 mg/l 0.2 mg/l
30 %
Mean
Ammonium <0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Mean
Calcite dissolution capacity 0 mg/l 5 mg/l CaCO3 Mean
Chloride 23 mg/l 250 mg/l
9 %
Mean
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml Mean
Coliform bacteria 0 KBE/100 ml 0/100 ml Mean
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Mean
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Mean
Colour 0,40 1/m 0.5 m⁻¹ Mean
Conductivity (25 °C) 489 µS/cm 2,790 µS/cm Mean
Iron 0,010 mg/l 0.2 mg/l
5 %
Mean
Manganese <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Mean
pH 7,59 6,5–9,5 Mean
Sodium 14 mg/l 200 mg/l
7 %
Mean
Sulphate 43 mg/l 250 mg/l
17 %
Mean
Temperature 10,7 °C Mean
Total organic carbon (TOC) 5,2 mg/l ohne anormale Veränderung Mean
Turbidity 0,12 FNU 1 NTU 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.

Radiology (2)

Radiology – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Indicative dose <0,1 mSv/a
below limit of quantification
0.1 mSv/a Mean
Radon-222 <100 Bq/l
below limit of quantification
100 Bq/l Mean

Further parameters (11)

Further parameters – Wasserwerk Mühlgrund
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3,45 mmol/l Mean
Base capacity to pH 8.2 0,20 mmol/l Mean
Calcium 83 mg/l Mean
Carbonate hardness 9,7 °dH Mean
Hardness range (WRMG) mittel Mean
Magnesium 3,2 mg/l Mean
Oxygen 11,6 mg/l Mean
Phosphate <0,03 mg/l
below limit of quantification
Mean
Potassium 2,1 mg/l Mean
Silicate / silicic acid 13,6 mg/l Mean
Total hardness 12,3 °dH 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.

Postcodes in this zone: 33397

Frequently asked questions about drinking water in Rietberg

How hard is the water in Rietberg?
Stadtwerk Verl (Wasserwerk Mühlgrund GmbH & Co. KG) publishes a total hardness of 12.1 °dH for the supply zone verl gesamt (hardness range mittel). 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 25/07/2026.
How much nitrate is in the drinking water in Rietberg?
Stadtwerk Verl (Wasserwerk Mühlgrund GmbH & Co. KG) publishes a nitrate value of 2,7 mg/l for the supply zone verl gesamt. The statutory parametric value is 50 mg/l; the measured value represents 5 % of the parametric value. Basis: Publication by the water supplier, retrieved on 25/07/2026.
Who supplies the drinking water in Rietberg?
Stadtwerk Verl (Wasserwerk Mühlgrund GmbH & Co. KG). The values shown here come from the supply zone verl 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.