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Wisconsin Lists of Accredited Laboratories

Listed below are Excel files summaries of different types of laboratory accreditations. These files are current as of 10.1.2020 unless otherwise noted.

When you click on these links, an excel file will automatically download to your computer

Listed below are pdf files summaries of different types of laboratory accreditations. These files are current as of 10.1.2020 unless otherwise noted.

Listed below is a link to DATCP drinking water microbiological certified labs. This link is updated weekly

Drinking water DAPTCP certified labs - Total coliform bacteria and E.coli

"Certification" or "certified" means certification, under s. 299.11 (7), Stats., of laboratories that perform compliance analyses for hire or to laboratories that perform compliance drinking water analyses in accordance with the standards and requirements of this chapter.

"Registration" or "registered" means registration under s. 299.11 (8), Stats., of laboratories that perform tests solely on its own behalf or that of a subsidiary under common ownership or control in accordance with the standards and requirements of this chapter. Registered laboratories do not perform drinking water testing.

The laboratory certification program does not currently have any reciprocity agreements with any government agencies except for accepting EPA Region 5 certifications of Wisconsin's State Primacy Drinking Water Laboratory - the Wisconsin State Laboratory of Hygiene.

The laboratory certification program does not currently have any reciprocity agreements with any private organizations.