Wisconsin’s Public, Environmental and Occupational Health Laboratory Since 1903 PFAS Compliance Testing COVID-19 Information about Wastewater Surveillance Avian Flu WSLH NewsJuly 09, 2026New Ordering Process for Cryptosporidium and Giardia StandardsThe Wisconsin State Laboratory of Hygiene (WSLH) has appreciated the opportunity to provide Cryptosporidium and Giardia standards to the water testing community over the years. Effective July 2026, the WSLH […]June 19, 20264th of July 2026 Holiday HoursPlease note the following changes to the Wisconsin State Laboratory of Hygiene’s operations for the July 4th holiday. As always, if you have an off-hours emergency, please call the WSLH […]May 15, 2026Memorial Day 2026 Holiday HoursPlease note the following changes to the Wisconsin State Laboratory of Hygiene’s operations due to the observance of the Memorial Day holiday. The table below lists the hours of operations […]April 29, 2026WSLH Featured Prominently in APHL’s 2025 Annual reportThe top 3 stories in the Association of Public Health Laboratories (APHL) 2025 annual report have a Wisconsin State Laboratory of Hygiene connection – APHL Internship Pool Offers Summer Relief […]March 26, 2026Meshel Lange Named HazMatter of the YearWSLH Chemical Emergency Response (CER) Laboratory Director Meshel Lange received the HazMatter of the Year Award at the Wisconsin Association of Hazardous Materials Responders (WAHMR) conference in early March. The […] WSLH News