Hayley T Olds


Hayley Olds, née Templar, is a Hydrologist with the U.S. Geological Survey Upper Midwest Water Science Center, Wisconsin office, where she has worked since 2012. Her research has focused on freshwater quality assessments using both freshwater organisms and molecular source tracking using human-associated fecal indicators and human-specific viruses. Hayley has experience in assessing benthic invertebrate, phytoplankton, and zooplankton communities, as well as sediment contamination and toxicity, in rivers and streams throughout Wisconsin, including several of Wisconsin’s Lake Michigan Areas of Concern. In the Milwaukee, Wisconsin metropolitan area, she has used microbial source tracking to identify and quantify sources of fecal contamination in urban waterways using both human-associated fecal indicators and human-specific viruses. Nation-wide, Hayley has been involved in collecting ecological data, including algae, invertebrates, fish, sediment, and surveying habitat, as a part of the National Water-Quality Assessment (NAWQA) Project’s Regional Stream Quality Assessment (RSQA). Research interests for future work include: harmful algal blooms (HABs), plankton toxicity, synthetic organic contaminants, emerging contaminants, and Great Lakes water quality.



2013, B.S. in Water Resources – University of Wisconsin-Stevens Point, Stevens Point, Wisconsin.

2015, M.S. in Freshwater Sciences and Technology – University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, Thesis: “The Identification and Quantification of Sewage Contamination in the Milwaukee Estuary.”