The Tittabawassee Watershed (HUC 04080201) is located in central Michigan, covering approximately 1,800 square miles. The watershed is primarily agricultural and urban, with the Tittabawassee River as the main waterway. Hydrology in the area is heavily influenced by snowpack, with winter snowmelt being a major contributor to the river's flow. Surface water quality in the watershed has been impacted by agricultural and urban runoff, leading to high levels of nutrients and sediment. The largest surface water reservoir in the watershed is Sanford Lake, which was created by a dam on the Tittabawassee River. Interesting climatic trends in the area include increasing annual temperatures and precipitation levels, as well as more frequent extreme weather events like heavy rainfall and flooding. The area has also seen significant changes in land use over the past century, with the conversion of forests to agriculture and urban development.