The Turkey Lakes Watershed Study (TLWS) was initiated in 1980 to evaluate the effects and processes of anthropogenic perturbations on Shield ecosystems. It was designed to provide an in-depth analysis of the biogeochemical processes that control pollutant-ecosystem interactions so that system models could be developed and validated. In particular, the stimulus for research in the TLW came from the desire to assess and understand the aquatic and terrestrial effects of acid rain.

Picture depicting acid rain formation and deposition
Acid rain formation and deposition