Accreditation self-declared (DAkkS)
Lower Saxony state public health office whose water hygiene department in Aurich runs accredited drinking-water proficiency tests: microbiological parameters (E. coli/coliforms, enterococci, colony counts, Clostridium perfringens, Pseudomonas aeruginosa, Legionella) and hygienic-chemical parameters.
nlga.niedersachsen.de
Mikrobiologischer Ringversuch: E. coli / coliforme Bakterien, Enterokokken, Koloniezahlen
Mikrobiologischer Ringversuch: Legionella, Pseudomonas aeruginosa, Clostridium perfringens
Ringversuch hygienisch-chemische Parameter in Trinkwasser (3 Teilringversuche)
| Scheme | Testing fields | Sample type | Analytes | Rounds/yr | Link |
|---|---|---|---|---|---|
| Mikrobiologischer Ringversuch: E. coli / coliforme Bakterien, Enterokokken, Koloniezahlen |
| Drinking water | — | 4 | Scheme page for Mikrobiologischer Ringversuch: E. coli / coliforme Bakterien, Enterokokken, Koloniezahlen (opens in a new tab) |
| Mikrobiologischer Ringversuch: Legionella, Pseudomonas aeruginosa, Clostridium perfringens |
| Drinking water | — | 2 | Scheme page for Mikrobiologischer Ringversuch: Legionella, Pseudomonas aeruginosa, Clostridium perfringens (opens in a new tab) |
| Ringversuch hygienisch-chemische Parameter in Trinkwasser (3 Teilringversuche) |
| Drinking water | Nitrate, nitrite, ammonium, pH, conductivity, oxidisability, Mn, Fe, Al, Cu, TOC, colour, turbidity | 3 | Scheme page for Ringversuch hygienisch-chemische Parameter in Trinkwasser (3 Teilringversuche) (opens in a new tab) |
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Last updated 1 Nov 2026.
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