Onterra, LLC is a natural resource consulting firm specializing in lake management planning services. The firm was created in 2005 by Tim Hoyman, and since then, has worked on over 300 waterbodies in 32 Wisconsin counties. As of 2022, over 250 lakes in Wisconsin are managed under a plan created with Onterra’s assistance. Onterra has also worked with many groups on the implementation of their management plans, which include AIS management and monitoring projects, specific diagnostic studies, and continued environmental monitoring.
Onterra is staffed by natural resource scientists and planners and does not perform herbicide applications or sell aeration systems, mechanical harvesters, or other lake management products. As a result, Onterra-led management planning projects are objectively created by a staff of experienced ecologists.
Since its start, Onterra has been a strong supporter of the Wisconsin Lakes Partnership and its annual convention, which is the largest citizen-based lakes conference in the US. Onterra has also worked in partnership with the Wisconsin DNR and US Army Corps of Engineers to conduct important field research. Onterra staff have presented these results, and others, at many regional and national conferences, and have also coauthored several scientific journal articles.
In 2017, Onterra was honored to receive a Wisconsin Lakes Stewardship Award for our efforts in protecting and restoring lakes.