Rockwood WWTP CS - Advanced Wastewater Treatment in Rockwood, Michigan

Rockwood WWTP CS is a municipal wastewater treatment facility located in Rockwood, Wayne County, Michigan, serving a population of approximately 1,456 residents. The plant is situated near the western shore of Lake Erie, within the Great Lakes Basin, and provides advanced treatment to protect this sensitive freshwater ecosystem. The plant operates with advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 643.52 units and a current discharge volume of 567.81 units, the facility operates under the U.S. Clean Water Act, which requires NPDES permits for all point source discharges. As an advanced treatment plant, it likely meets stringent effluent limits for phosphorus and other parameters to safeguard Lake Erie from eutrophication. The treated effluent from Rockwood WWTP CS discharges into the Detroit River or a tributary that flows into Lake Erie, a vital freshwater resource supporting drinking water, recreation, and diverse aquatic life. The plant's proximity to the coast (within 10 km) underscores the importance of its advanced treatment in preventing nutrient loading and harmful algal blooms in the lake.

The plant discharges into the Detroit River system, which flows into Lake Erie, the shallowest and most biologically productive of the Great Lakes. Lake Erie faces challenges from nutrient pollution, particularly phosphorus, which fuels harmful algal blooms. The advanced treatment at this plant helps reduce nutrient inputs, supporting the lake's ecological health and downstream communities that rely on it for drinking water and recreation.