Wisconsin Certified Lab Lists

The laboratory lists below are generally updated at least twice annually. If you do not see what you are looking for call the Laboratory Certification or Registration Program at (608) 267-7633. Specialized lists for a particular project, such as PCB laboratories, dioxin laboratories or all wastewater laboratories are also available upon request.

These lists are available as PDF files. You may use Acrobat Reader's built in search capability to locate a particular laboratory. If you need a free copy of Adobe's Acrobat Reader software, instructions on how to obtain one are found in the footer of thei page. These lists are intended to be used only as a guide to help locate certified and registered laboratories. These lists do not contain specific information about the scope of a laboratory's certification or registration. Users looking for laboratories to conduct a specific test or type of test are encouraged to contact the program at (608) 267-7633.

Lists of Certified and Registered Laboratories

This list includes all laboratories currently certified, registered, or accepted under reciprocity. Contains just a listing of the technologies (by matrix) for which each lab is accredited.

This list includes all commercial laboratories currently certified or accepted under reciprocity. This list does not include public laboratories or noncommercial private labs. Contains testing parameter information.

This list includes all NON-commercial laboratories currently certified to perform testing for facilities other than their own. This list basically includes public laboratories, industrial labs, and small municipal wastewater labs. Contains testing parameter information.

This list includes all of the laboratories currently certified or accepted under reciprocity to analyze safe drinking water samples for Wisconsin compliance. Contains testing parameter information.

This list includes all of the laboratories currently certified or accepted under reciprocity to analyze Arsenic in safe drinking water samples for Wisconsin compliance.

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Lists of Labs Certified for Specific Parameters

This list includes laboratories that are certified or registered to perform low-level mercury determinations in aqueous and/or solid matrices.

This list includes laboratories that are certified to perform analytical testing for pesticides and herbicides in aqueous and solid matrices.

This list includes laboratories that are certified to perform analytical testing for petroleum hydrocarbons (GRO, DRO, PVOC) and volatile organics (VOCs) in aqueous or solid matrices

Biomonitoring Labs. This includes laboratories that perform whole effluent toxicity tests (acute and chronic toxicity tests).

NOTE: Please be aware that, although certified to conduct WET tests, the Wisconsin State Laboratory of Hygiene is under contract to conduct compliance inspection tests, research and test development, etc. for the WDNR and due to possible "conflict of interest" does not perform WET tests commercially for hire for use by permittees to meet WPDES requirements.

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List of All Laboratories by Certification Type

This list includes all of the currently registered laboratories in the program. These labs are not able to contract outside of their own corporation for analytical work. Contains testing parameter information.

This list includes all of the labs currently certified or accepted under reciprocity. These labs are able to contract for analytical chemistry work. Contains testing parameter information.

Laboratory Lists From Other Certifying Agencies

These are approved by the Department of Agriculture to perform bacti testing on drinking water for Wisconsin compliance.

The Department lacks the authority to certify labs for radiological testing but accepts results generated by any laboratory accepted, approved, or accredited by the EPA.

Laboratories approved by USEPA Region 5 to analyze for 2,3,7,8-TCDD (Dioxin) in drinking water.

Laboratories accredited for bulk (air and materials) asbestos by the National Institute of Standards and Technology (NIST).

Laboratories accredited for asbestos and industrial hygiene testing by the American Industrial Hygiene Association (AIHA).

Laboratories accredited by the American Industrial Hygiene Association (AIHA) Environmental Lead Laboratory Accreditation Program (ELLAP) and American Association for Laboratory Accreditation (A2LA) are recognized by the EPA's National Lead Laboratory Accreditation Program (NLLAP). AIHA and A2LA accredits laboratories performing analysis of lead in environmental samples for paint, soil, dust wipes and air. The State of Wisconsin does not have authority to accredit these types of laboratories.

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