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Drinking water in Oldenburg (Oldenburg), Stadtteile Ohmstede, Ofenerdiek, Etzhorn.

7 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.

Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser)

Verkehr und Wasser GmbH (VWG), Netz/Betrieb: EWE NETZ GmbH

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 06/04/2022. 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
11 °dH
Hardness range medium
Key values Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 15 mg/l 50 mg/l
30 %
Single value
Sulphate 67 mg/l 250 mg/l
27 %
Single value
Sodium 26 mg/l 200 mg/l
13 %
Single value
Show all recorded parameters (64 — most recent value per parameter)

Chemical parameters (41)

Chemical parameters – Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser)
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,001 mg/l
below limit of quantification
3 µg/l
< 33 % *
Single value
2,6-Dichlorobenzamide (BAM) 0,000119 mg/l Single value
AMPA <0,00005 mg/l
below limit of quantification
Single value
Atrazine <0,00005 mg/l
below limit of quantification
Single value
Bentazone <0,00005 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 <0,0000025 mg/l
below limit of quantification
10 ng/l
< 25 % *
Single value
Benzo(b)fluoranthene <0,000006 mg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0,000006 mg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0,000006 mg/l
below limit of quantification
Single value
Bromacil <0,00005 mg/l
below limit of quantification
Single value
Chlorotoluron <0,00005 mg/l
below limit of quantification
Single value
Chromium < 0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Desethylatrazine <0,00005 mg/l
below limit of quantification
Single value
Desisopropylatrazine <0,00005 mg/l
below limit of quantification
Single value
Diuron <0,00005 mg/l
below limit of quantification
Single value
Ethidimuron <0,00005 mg/l
below limit of quantification
Single value
Ethofumesate <0,00005 mg/l
below limit of quantification
Single value
Fluoride 0,11 mg/l 1.5 mg/l
7 %
Single value
Glyphosate <0,00005 mg/l
below limit of quantification
Single value
Indeno(1,2,3-cd)pyrene <0,000006 mg/l
below limit of quantification
Single value
Isoproturon <0,00005 mg/l
below limit of quantification
Single value
Mercury < 0,0003 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value
Metamitron <0,00005 mg/l
below limit of quantification
Single value
Metazachlor <0,00005 mg/l
below limit of quantification
Single value
Metolachlor <0,00005 mg/l
below limit of quantification
Single value
Metolachlor acid <0,00005 mg/l
below limit of quantification
Single value
Metoxuron <0,00005 mg/l
below limit of quantification
Single value
Metribuzin <0,00005 mg/l
below limit of quantification
Single value
Nitrate 15 mg/l 50 mg/l
30 %
Single value
Nitrite <0,07 mg/l
below limit of quantification
0.5 mg/l
< 14 % *
Single value
Oxadixyl <0,00005 mg/l
below limit of quantification
Single value
Simazine <0,00005 mg/l
below limit of quantification
Single value
Terbuthylazine <0,00005 mg/l
below limit of quantification
Single value
Tetrachloroethene <0,001 mg/l
below limit of quantification
Single value
Tribromomethane (bromoform) <0,001 mg/l
below limit of quantification
Single value
Trichloroethene <0,001 mg/l
below limit of quantification
Single value
Trichloromethane (chloroform) <0,001 mg/l
below limit of quantification
Single value
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l 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.

PFAS (1)

PFAS – Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser)
Parameter Value Parametric value Share of the parametric value Reference
Trifluoroacetic acid (TFA) 0,00520 mg/l 60 µg/l
UBA guide value
9 %
Single value

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.

Metabolites (5)

Metabolites – Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser)
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0,00005 mg/l
below limit of quantification
Single value
Desphenyl-chloridazon <0,00005 mg/l
below limit of quantification
Single value
Dimethachlor acid CGA 50266 <0,00005 mg/l
below limit of quantification
Single value
Dimethachlor sulfonic acid CGA 354742 <0,00005 mg/l
below limit of quantification
Single value
Methyl-desphenyl-chloridazon <0,00005 mg/l
below limit of quantification
Single value

Indicator parameters (8)

Indicator parameters – Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser)
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Single value
Ammonium <0,15 mg/l
below limit of quantification
0.5 mg/l
< 30 % *
Single value
Calcite dissolution capacity 0,29 mg/l CaCO3 5 mg/l CaCO3 Single value
Chloride 45 mg/l 250 mg/l
18 %
Single value
Iron < 0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Single value
Manganese < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Sodium 26 mg/l 200 mg/l
13 %
Single value
Sulphate 67 mg/l 250 mg/l
27 %
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 (9)

Further parameters – Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser)
Parameter Value Parametric value Share of the parametric value Reference
Calcium 64 mg/l Single value
Carbonate hardness 6,5 °d Single value
Free carbon dioxide 5,0 mg/l Single value
Magnesium 7,9 mg/l Single value
Phosphate <0,15 mg/l
below limit of quantification
Single value
Potassium 5,2 mg/l Single value
Sum of anion equivalents 5,0 mmol/l Single value
Sum of cation equivalents 4,9 mmol/l Single value
Total hardness 1,96 mmol/l 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.ewe-netz.de/-/media/ewe-netz/downloads/2022_04_06_umfassende_trinkwasseruntersuchung_ol_donnerschwee.pdf · 06.04.2022 · 22.03.2022 17:00 bis 06.04.2022 · retrieved on 11/07/2026

Postcodes in this zone: 26125

Show 6 more supply zones

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 18/03/2025. 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.

Key values P258737
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,0000010 mg/l Single value · P258737
Nitrate 11 mg/l 50 mg/l
22 %
Single value · P258737
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · P258737
Sulphate 59 mg/l 250 mg/l
24 %
Single value · P258737
Sodium 21 mg/l 200 mg/l
11 %
Single value · P258737

* 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 (104 — most recent value per parameter)

Chemical parameters (54)

Chemical parameters – P258737
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0009 mg/l
below limit of quantification
3 µg/l
< 30 % *
Single value · P258737
2,6-Dichlorobenzamide (BAM) 0,000047 mg/l Single value · P258737
Acrylamide <0,03 µg/l
below limit of quantification
0.1 µg/l
< 30 % *
Single value · P258737
AMPA <0,000030 mg/l
below limit of quantification
Single value · P258737
Antimony < 0,0005 mg/l
below limit of quantification
5 µg/l
< 10 % *
Single value · P258737
Arsenic < 0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Single value · P258737
Atrazine <0,000030 mg/l
below limit of quantification
Single value · P258737
Bentazone <0,000030 mg/l
below limit of quantification
Single value · P258737
Benzene <0,00025 mg/l
below limit of quantification
1 µg/l
< 25 % *
Single value · P258737
Benzo(a)pyrene <0,0000025 mg/l
below limit of quantification
10 ng/l
< 25 % *
Single value · P258737
Benzo(b)fluoranthene <0,000006 mg/l
below limit of quantification
Single value · P258737
Benzo(ghi)perylene <0,000006 mg/l
below limit of quantification
Single value · P258737
Benzo(k)fluoranthene <0,000006 mg/l
below limit of quantification
Single value · P258737
Bisphenol A <0,0005 mg/l
below limit of quantification
2.5 µg/l
< 20 % *
Single value · P258737
Boron < 0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Single value · P258737
Bromacil <0,000030 mg/l
below limit of quantification
Single value · P258737
Cadmium < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value · P258737
Chloridazon <0,000030 mg/l
below limit of quantification
Single value · P258737
Chlorotoluron <0,000030 mg/l
below limit of quantification
Single value · P258737
Chromium < 0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value · P258737
Copper < 0,001 mg/l
below limit of quantification
2 mg/l
< < 0.1 % *
Single value · P258737
Cyanide <0,008 mg/l
below limit of quantification
50 µg/l
< 16 % *
Single value · P258737
Desethylatrazine <0,000030 mg/l
below limit of quantification
Single value · P258737
Desisopropylatrazine <0,000030 mg/l
below limit of quantification
Single value · P258737
Diuron <0,000030 mg/l
below limit of quantification
Single value · P258737
Epichlorohydrin <0,000025 mg/l
below limit of quantification
0.1 µg/l
< 25 % *
Single value · P258737
Ethidimuron <0,000030 mg/l
below limit of quantification
Single value · P258737
Ethofumesate <0,000030 mg/l
below limit of quantification
Single value · P258737
Fluoride <0,18 mg/l
below limit of quantification
1.5 mg/l
< 12 % *
Single value · P258737
Glyphosate <0,000030 mg/l
below limit of quantification
Single value · P258737
Indeno(1,2,3-cd)pyrene <0,000006 mg/l
below limit of quantification
Single value · P258737
Isoproturon <0,000030 mg/l
below limit of quantification
Single value · P258737
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · P258737
MCPA <0,000030 mg/l
below limit of quantification
Single value · P258737
Mercury < 0,0003 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value · P258737
Metamitron <0,000030 mg/l
below limit of quantification
Single value · P258737
Metazachlor <0,000030 mg/l
below limit of quantification
Single value · P258737
Metolachlor <0,000030 mg/l
below limit of quantification
Single value · P258737
Metoxuron <0,000030 mg/l
below limit of quantification
Single value · P258737
Metribuzin <0,000030 mg/l
below limit of quantification
Single value · P258737
Nickel 0,0020 mg/l 20 µg/l
10 %
Single value · P258737
Nitrate 11 mg/l 50 mg/l
22 %
Single value · P258737
Nitrite <0,07 mg/l
below limit of quantification
0.5 mg/l
< 14 % *
Single value · P258737
Oxadixyl <0,000030 mg/l
below limit of quantification
Single value · P258737
Selenium 0,0012 mg/l 10 µg/l
12 %
Single value · P258737
Simazine <0,000030 mg/l
below limit of quantification
Single value · P258737
Terbuthylazine <0,000030 mg/l
below limit of quantification
Single value · P258737
Tetrachloroethene <0,001 mg/l
below limit of quantification
Single value · P258737
Tribromomethane (bromoform) <0,001 mg/l
below limit of quantification
Single value · P258737
Trichloroethene <0,001 mg/l
below limit of quantification
Single value · P258737
Trichloromethane (chloroform) <0,001 mg/l
below limit of quantification
Single value · P258737
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value · P258737
Uranium < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · P258737
Vinyl chloride <0,00015 mg/l
below limit of quantification
0.5 µg/l
< 30 % *
Single value · P258737

* 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 (23)

PFAS – P258737
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorobutanoic acid (PFBA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorodecane sulfonic acid (PFDS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorodecanoic acid (PFDA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorododecane sulfonic acid (PFDoDS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorododecanoic acid (PFDoDA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluoroheptane sulfonic acid (PFHpS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluoroheptanoic acid (PFHpA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorohexane sulfonic acid (PFHxS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorohexanoic acid (PFHxA) 0,0000010 mg/l Single value · P258737
Perfluorononane sulfonic acid (PFNS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorononanoic acid (PFNA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorooctanesulfonic acid (PFOS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorooctanoic acid (PFOA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluoropentanesulfonic acid (PFPeS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluoropentanoic acid (PFPeA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorotridecanesulfonic acid (PFTrDS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluorotridecanoic acid (PFTrDA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluoroundecanesulfonic acid (PFUnDS) <0,000001 mg/l
below limit of quantification
Single value · P258737
Perfluoroundecanoic acid (PFUnDA) <0,000001 mg/l
below limit of quantification
Single value · P258737
Sum of 4 PFAS n.n. mg/l
not detectable
Single value · P258737
Sum of PFAS 0,0000010 mg/l Single value · P258737
Trifluoroacetic acid (TFA) <0,00050 mg/l
below limit of quantification
60 µg/l
UBA guide value
< 0.8 % *
Single value · P258737

* 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.

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.

Metabolites (8)

Metabolites – P258737
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0,000030 mg/l
below limit of quantification
Single value · P258737
Chlorothalonil M12 <0,000030 mg/l
below limit of quantification
Single value · P258737
Chlorothalonil M4 <0,000030 mg/l
below limit of quantification
Single value · P258737
Desphenyl-chloridazon <0,00003 mg/l
below limit of quantification
Single value · P258737
Dimethachlor acid CGA 50266 <0,000030 mg/l
below limit of quantification
Single value · P258737
Dimethachlor sulfonic acid CGA 354742 <0,000030 mg/l
below limit of quantification
Single value · P258737
Dimethachlor sulfonic acid CGA 369873 <0,000030 mg/l
below limit of quantification
Single value · P258737
Methyl-desphenyl-chloridazon <0,000030 mg/l
below limit of quantification
Single value · P258737

Indicator parameters (11)

Indicator parameters – P258737
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Single value · P258737
Ammonium <0,15 mg/l
below limit of quantification
0.5 mg/l
< 30 % *
Single value · P258737
Calcite dissolution capacity 4,1 mg/l CaCO3 5 mg/l CaCO3 Single value · P258737
Chloride 72 mg/l 250 mg/l
29 %
Single value · P258737
Conductivity (25 °C) 520 µS/cm 2,790 µS/cm Single value · P258737
Iron < 0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Single value · P258737
Manganese < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · P258737
Sodium 21 mg/l 200 mg/l
11 %
Single value · P258737
Sulphate 59 mg/l 250 mg/l
24 %
Single value · P258737
Taste normal qualitativ für den Verbraucher annehmbar Single value · P258737
Turbidity 0,18 NTU 1 NTU Single value · P258737

* 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 (8)

Further parameters – P258737
Parameter Value Parametric value Share of the parametric value Reference
Calcium 67 mg/l Single value · P258737
Free carbon dioxide 5,21 mg/l Single value · P258737
Magnesium 7,7 mg/l Single value · P258737
Oxygen 8,7 mg O2/l Single value · P258737
Phosphate <0,15 mg/l
below limit of quantification
Single value · P258737
Potassium 4,8 mg/l Single value · P258737
Sum of anion equivalents 5,066 mmol/l Single value · P258737
Sum of cation equivalents 4,810 mmol/l Single value · P258737

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.ewe-netz.de/-/media/ewe-netz/downloads/trinkwasser/trinkwasser_umfassende_analyse_ol_donnerschwee.pdf · März 2025 (Probenahmen 12.03.2025 und 18.03.2025) · retrieved on 11/07/2026

Postcodes in this zone: 26125

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 18/03/2025. 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.

Key values P258738
Parameter Value Parametric value Share of the parametric value Reference
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · P258738

* 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 (18 — most recent value per parameter)

Chemical parameters (18)

Chemical parameters – P258738
Parameter Value Parametric value Share of the parametric value Reference
Antimony < 0,0005 mg/l
below limit of quantification
5 µg/l
< 10 % *
Single value · P258738
Arsenic < 0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Single value · P258738
Benzo(a)pyrene <0,0000025 mg/l
below limit of quantification
10 ng/l
< 25 % *
Single value · P258738
Benzo(b)fluoranthene <0,000006 mg/l
below limit of quantification
Single value · P258738
Benzo(ghi)perylene <0,000006 mg/l
below limit of quantification
Single value · P258738
Benzo(k)fluoranthene <0,000006 mg/l
below limit of quantification
Single value · P258738
Bisphenol A <0,0005 mg/l
below limit of quantification
2.5 µg/l
< 20 % *
Single value · P258738
Cadmium < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value · P258738
Copper 0,034 mg/l 2 mg/l
2 %
Single value · P258738
Epichlorohydrin <0,000025 mg/l
below limit of quantification
0.1 µg/l
< 25 % *
Single value · P258738
Indeno(1,2,3-cd)pyrene <0,000006 mg/l
below limit of quantification
Single value · P258738
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · P258738
Nickel 0,0021 mg/l 20 µg/l
10 %
Single value · P258738
Nitrite <0,07 mg/l
below limit of quantification
0.5 mg/l
< 14 % *
Single value · P258738
Tribromomethane (bromoform) <0,001 mg/l
below limit of quantification
Single value · P258738
Trichloromethane (chloroform) <0,001 mg/l
below limit of quantification
Single value · P258738
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value · P258738
Vinyl chloride <0,00015 mg/l
below limit of quantification
0.5 µg/l
< 30 % *
Single value · P258738

* 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.

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.ewe-netz.de/-/media/ewe-netz/downloads/trinkwasser/trinkwasser_umfassende_analyse_ol_donnerschwee.pdf · März 2025 (Probenahmen 12.03.2025 und 18.03.2025) · retrieved on 11/07/2026

Postcodes in this zone: 26125

Stadt Oldenburg, Gebäude 1e - Umfang B; Entnahmeort: Industriestraße 1, 26121 Oldenburg

Verkehr und Wasser GmbH (VWG), Netz/Betrieb: EWE NETZ GmbH

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

Key values Stadt Oldenburg, Gebäude 1e - Umfang B; Entnahmeort: Industriestraße 1, 26121 Oldenburg
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,0000080 mg/l Single value
Nitrate 4,4 mg/l 50 mg/l
9 %
Single value
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Sulphate 57 mg/l 250 mg/l
23 %
Single value
Sodium 19 mg/l 200 mg/l
9 %
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 (103 — most recent value per parameter)

Chemical parameters (53)

Chemical parameters – Stadt Oldenburg, Gebäude 1e - Umfang B; Entnahmeort: Industriestraße 1, 26121 Oldenburg
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0009 mg/l
below limit of quantification
3 µg/l
< 30 % *
Single value
2,6-Dichlorobenzamide (BAM) <0,000030 mg/l
below limit of quantification
Single value
AMPA <0,000030 mg/l
below limit of quantification
Single value
Antimony <0,0005 mg/l
below limit of quantification
5 µg/l
< 10 % *
Single value
Arsenic <0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Single value
Atrazine <0,000030 mg/l
below limit of quantification
Single value
Bentazone <0,000030 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 <0,0000025 mg/l
below limit of quantification
10 ng/l
< 25 % *
Single value
Benzo(b)fluoranthene <0,000006 mg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0,000006 mg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0,000006 mg/l
below limit of quantification
Single value
Bisphenol A <0,0005 mg/l
below limit of quantification
2.5 µg/l
< 20 % *
Single value
Boron <0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Single value
Bromacil <0,000030 mg/l
below limit of quantification
Single value
Cadmium <0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value
Chloridazon <0,000030 mg/l
below limit of quantification
Single value
Chlorotoluron <0,000030 mg/l
below limit of quantification
Single value
Chromium <0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value
Copper 0,010 mg/l 2 mg/l
0.5 %
Single value
Cyanide <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Desethylatrazine <0,000030 mg/l
below limit of quantification
Single value
Desisopropylatrazine <0,000030 mg/l
below limit of quantification
Single value
Diuron <0,000030 mg/l
below limit of quantification
Single value
Epichlorohydrin <0,000025 mg/l
below limit of quantification
0.1 µg/l
< 25 % *
Single value
Ethidimuron <0,000030 mg/l
below limit of quantification
Single value
Ethofumesate <0,000030 mg/l
below limit of quantification
Single value
Fluoride <0,18 mg/l
below limit of quantification
1.5 mg/l
< 12 % *
Single value
Glyphosate <0,000030 mg/l
below limit of quantification
Single value
Indeno(1,2,3-cd)pyrene <0,000006 mg/l
below limit of quantification
Single value
Isoproturon <0,000030 mg/l
below limit of quantification
Single value
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
MCPA <0,000030 mg/l
below limit of quantification
Single value
Mercury < 0,0003 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value
Metamitron <0,000030 mg/l
below limit of quantification
Single value
Metazachlor <0,000030 mg/l
below limit of quantification
Single value
Metolachlor <0,000030 mg/l
below limit of quantification
Single value
Metoxuron <0,000030 mg/l
below limit of quantification
Single value
Metribuzin <0,000030 mg/l
below limit of quantification
Single value
Nickel 0,0011 mg/l 20 µg/l
6 %
Single value
Nitrate 4,4 mg/l 50 mg/l
9 %
Single value
Nitrite <0,07 mg/l
below limit of quantification
0.5 mg/l
< 14 % *
Single value
Oxadixyl <0,000030 mg/l
below limit of quantification
Single value
Selenium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Simazine <0,000030 mg/l
below limit of quantification
Single value
Terbuthylazine <0,000030 mg/l
below limit of quantification
Single value
Tetrachloroethene <0,001 mg/l
below limit of quantification
Single value
Tribromomethane (bromoform) <0,001 mg/l
below limit of quantification
Single value
Trichloroethene <0,001 mg/l
below limit of quantification
Single value
Trichloromethane (chloroform) <0,001 mg/l
below limit of quantification
Single value
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value
Uranium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
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.

PFAS (23)

PFAS – Stadt Oldenburg, Gebäude 1e - Umfang B; Entnahmeort: Industriestraße 1, 26121 Oldenburg
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) <0,000001 mg/l
below limit of quantification
Single value
Perfluorobutanoic acid (PFBA) 0,0000010 mg/l Single value
Perfluorodecane sulfonic acid (PFDS) <0,000001 mg/l
below limit of quantification
Single value
Perfluorodecanoic acid (PFDA) <0,000001 mg/l
below limit of quantification
Single value
Perfluorododecane sulfonic acid (PFDoDS) <0,000001 mg/l
below limit of quantification
Single value
Perfluorododecanoic acid (PFDoDA) <0,000001 mg/l
below limit of quantification
Single value
Perfluoroheptane sulfonic acid (PFHpS) <0,000001 mg/l
below limit of quantification
Single value
Perfluoroheptanoic acid (PFHpA) <0,000001 mg/l
below limit of quantification
Single value
Perfluorohexane sulfonic acid (PFHxS) 0,0000035 mg/l Single value
Perfluorohexanoic acid (PFHxA) 0,0000012 mg/l Single value
Perfluorononane sulfonic acid (PFNS) <0,000001 mg/l
below limit of quantification
Single value
Perfluorononanoic acid (PFNA) 0,0000011 mg/l Single value
Perfluorooctanesulfonic acid (PFOS) 0,0000012 mg/l Single value
Perfluorooctanoic acid (PFOA) <0,000001 mg/l
below limit of quantification
Single value
Perfluoropentanesulfonic acid (PFPeS) <0,000001 mg/l
below limit of quantification
Single value
Perfluoropentanoic acid (PFPeA) <0,000001 mg/l
below limit of quantification
Single value
Perfluorotridecanesulfonic acid (PFTrDS) <0,000001 mg/l
below limit of quantification
Single value
Perfluorotridecanoic acid (PFTrDA) <0,000001 mg/l
below limit of quantification
Single value
Perfluoroundecanesulfonic acid (PFUnDS) <0,000001 mg/l
below limit of quantification
Single value
Perfluoroundecanoic acid (PFUnDA) <0,000001 mg/l
below limit of quantification
Single value
Sum of 4 PFAS 0,0000058 mg/l Single value
Sum of PFAS 0,0000080 mg/l Single value
Trifluoroacetic acid (TFA) <0,00050 mg/l
below limit of quantification
60 µg/l
UBA guide value
< 0.8 % *
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.

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.

Metabolites (8)

Metabolites – Stadt Oldenburg, Gebäude 1e - Umfang B; Entnahmeort: Industriestraße 1, 26121 Oldenburg
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0,000030 mg/l
below limit of quantification
Single value
Chlorothalonil M12 <0,000030 mg/l
below limit of quantification
Single value
Chlorothalonil M4 <0,00010 mg/l
below limit of quantification
Single value
Desphenyl-chloridazon 0,000061 mg/l Single value
Dimethachlor acid CGA 50266 <0,000030 mg/l
below limit of quantification
Single value
Dimethachlor sulfonic acid CGA 354742 <0,000030 mg/l
below limit of quantification
Single value
Dimethachlor sulfonic acid CGA 369873 <0,000030 mg/l
below limit of quantification
Single value
Methyl-desphenyl-chloridazon <0,000030 mg/l
below limit of quantification
Single value

Indicator parameters (11)

Indicator parameters – Stadt Oldenburg, Gebäude 1e - Umfang B; Entnahmeort: Industriestraße 1, 26121 Oldenburg
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Single value
Ammonium <0,15 mg/l
below limit of quantification
0.5 mg/l
< 30 % *
Single value
Calcite dissolution capacity -3,0 mg/l CaCO3 5 mg/l CaCO3 Single value
Chloride 34 mg/l 250 mg/l
14 %
Single value
Conductivity (25 °C) 470 µS/cm 2,790 µS/cm Single value
Iron <0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Single value
Manganese <0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Sodium 19 mg/l 200 mg/l
9 %
Single value
Sulphate 57 mg/l 250 mg/l
23 %
Single value
Taste normal qualitativ für den Verbraucher annehmbar Single value
Turbidity 0,19 NTU 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 (8)

Further parameters – Stadt Oldenburg, Gebäude 1e - Umfang B; Entnahmeort: Industriestraße 1, 26121 Oldenburg
Parameter Value Parametric value Share of the parametric value Reference
Calcium 73 mg/l Single value
Free carbon dioxide 5,76 mg/l Single value
Magnesium 7,7 mg/l Single value
Oxygen 9,5 mg O2/l Single value
Phosphate <0,15 mg/l
below limit of quantification
Single value
Potassium 2,9 mg/l Single value
Sum of anion equivalents 4,614 mmol/l Single value
Sum of cation equivalents 4,416 mmol/l 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.ewe-netz.de/-/media/ewe-netz/downloads/trinkwasser/trinkwasser_umfassende_analyse_ol_alexanderfeld.pdf · 13.11.2025 · Untersuchungszeitraum: 14.10.2025 bis 13.11.2025 · retrieved on 11/07/2026

Postcodes in this zone: 26125

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: 26125

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.

No core values are available for this zone yet.

Show all recorded parameters (1 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – oldenburg gesamt
Parameter Value Parametric value Share of the parametric value Reference
Uranium <0,0001 Milligramm pro Liter
below limit of quantification
10 µg/l 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: oldenburg-f28bd21cr.html · retrieved on 11/07/2026

Postcodes in this zone: 26125

Wasserprobe Nr. 13485 (Reinwasser, Netzleitung Wasserturm)

Verkehr und Wasser GmbH (VWG), Netz/Betrieb: EWE NETZ GmbH

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 18/03/2025. 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.

No core values are available for this zone yet.

Show all recorded parameters (4 — most recent value per parameter)

Indicator parameters (4)

Indicator parameters – Wasserprobe Nr. 13485 (Reinwasser, Netzleitung Wasserturm)
Parameter Value Parametric value Share of the parametric value Reference
Odour normal ohne für den Verbraucher annehmbar Single value · Wasserprobe Nr. 13485 (Reinwasser, Netzleitung Wasserturm)
pH 7,6 ohne 6,5–9,5 Single value · Wasserprobe Nr. 13485 (Reinwasser, Netzleitung Wasserturm)
Taste normal ohne für den Verbraucher annehmbar Single value · Wasserprobe Nr. 13485 (Reinwasser, Netzleitung Wasserturm)
Turbidity 0,1 ohne 1 NTU Single value · Wasserprobe Nr. 13485 (Reinwasser, Netzleitung Wasserturm)

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.ewe-netz.de/-/media/ewe-netz/downloads/trinkwasser/trinkwasser_umfassende_analyse_ol_donnerschwee.pdf · März 2025 (Probenahmen 12.03.2025 und 18.03.2025) · retrieved on 11/07/2026

Postcodes in this zone: 26125

Frequently asked questions about drinking water in Oldenburg (Oldenburg), Stadtteile Ohmstede, Ofenerdiek, Etzhorn.

How hard is the water in Oldenburg (Oldenburg), Stadtteile Ohmstede, Ofenerdiek, Etzhorn.?
Verkehr und Wasser GmbH (VWG), Netz/Betrieb: EWE NETZ GmbH publishes a total hardness of 1,96 mmol/l for the supply zone Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser) — that corresponds to 11 °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: 06.04.2022, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Oldenburg (Oldenburg), Stadtteile Ohmstede, Ofenerdiek, Etzhorn.?
Verkehr und Wasser GmbH (VWG), Netz/Betrieb: EWE NETZ GmbH publishes a nitrate value of 15 mg/l for the supply zone Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser). The statutory parametric value is 50 mg/l; the measured value represents 30 % of the parametric value. Basis: 06.04.2022, retrieved on 11/07/2026.
Who supplies the drinking water in Oldenburg (Oldenburg), Stadtteile Ohmstede, Ofenerdiek, Etzhorn.?
Verkehr und Wasser GmbH (VWG), Netz/Betrieb: EWE NETZ GmbH. The values shown here come from the supply zone Donnerschweerstr. 257, 26123 Oldenburg (WW Ausgang, ID-Nr. 64400000, Reinwasser) 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.