MMSD Central Lab

Every day, a group of dedicated scientists are hard at work in MMSD’s laboratory, testing samples to ensure that the water reclamation facilities are working properly, and to look for sources of pollution and solutions that help protect Lake Michigan. MMSD has the largest municipal wastewater laboratory in the state. We are recognized in Wisconsin and nationally for our work in developing scientific methods and standards for environmental testing laboratories. The lab tests a variety of samples for multiple purposes. Besides making sure the reclamation facilities are operating properly, we also sample and test Lake Michigan and our rivers and streams. Milorganite® is tested every day before it is shipped for sale, to ensure the product quality.