Lake Eliza Wastewater Treatment Plant, Gates Corner, Indiana

Lake Eliza is a wastewater treatment plant located in Gates Corner, Porter County, Indiana, United States. The facility serves a small population of 700 residents, reflecting its role in a rural or suburban community. Its location near the southern tip of Lake Michigan places it within the Great Lakes watershed, a region of significant ecological importance. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater facilities. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The plant's designed capacity matches its discharge volume at 329.33 units, indicating consistent operation at full capacity. As a US facility, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Indiana Department of Environmental Management. The treated effluent from Lake Eliza likely discharges into a local waterway that flows into the Lake Michigan basin. Lake Michigan is one of the five Great Lakes, holding 20% of the world's surface freshwater and supporting diverse aquatic life, including fish species like lake trout and whitefish. The plant's discharge must comply with water quality standards to protect this sensitive ecosystem from nutrient pollution and other contaminants.

The plant's discharge enters a tributary of the Lake Michigan watershed, which ultimately drains into Lake Michigan. Lake Michigan is a critical freshwater resource providing drinking water, recreation, and habitat for numerous species. The region is part of the Great Lakes ecosystem, which faces challenges from nutrient loading, invasive species, and industrial pollution. The plant's secondary treatment helps reduce organic pollutants, but advanced treatment may be needed to fully protect the lake's water quality.