LSRI achieves certification for Chronic Whole Effluent Testing
On Monday, June 19, 2017, the Lake Superior Research Institute (LSRI) became certified by the Wisconsin Department of Natural Resources (WDNR) for Chronic Whole Effluent Toxicity (WET) testing on three standard test organisms, continuing a nearly 50-year history of aquatic toxicology research and testing. WET tests are used to determine the toxic effect of discharge water from a ship, manufacturing plant, wastewater treatment plant, or other industrial discharge sources to organisms occupying receiving water.
The freshwater organisms used in WET tests are: Fathead minnow (Pimephales promelas), a water flea (Ceriodaphnia dubia), and green algae (Selenastrum capricornutum); two of these species (water flea and green algae) are cultured in LSRI’s Hatchery Facility. Tests are conducted according to US EPA and WDNR methods and certification is granted following application, document review by a WDNR auditor, demonstration that the laboratory is competent to perform the chronic WET methods and on-site evaluation by a WDNR auditor. The certification process took nearly one year from the time of application in July of 2016. This certification allows LSRI to conduct toxicity monitoring for industrial facilities that must meet Wisconsin Pollutant Discharge Elimination System permit requirements.
The LSRI WET team consists of Christine Polkinghorne, Olivia Anders, Kimberly Beesley and Quality Assurance Manager, Kelsey Prihoda. The certification makes LSRI one of only five labs certified by the State of Wisconsin to conduct chronic WET tests with C. dubia and P. promelas and one of only three labs certified by the State of Wisconsin to conduct chronic WET tests with S. capricornutum.