Crane Lake WSD Wastewater Treatment Plant, Beatty Township, Minnesota

Crane Lake WSD is a wastewater treatment plant located in Beatty Township, Saint Louis County, Minnesota. It serves a small population of 96 residents in a rural area near Crane Lake. The plant is part of the local water district's infrastructure for managing domestic wastewater. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater. With a designed capacity of 34.07 million gallons per year and an actual discharge volume of 30.28 million gallons per year, the facility operates at a high utilization rate. As a small system, it is subject to state-level NPDES permitting through the Minnesota Pollution Control Agency. The treated effluent is discharged into the local watershed, which ultimately drains into the Great Lakes basin via the Vermilion River system. The surrounding area features numerous lakes and wetlands that support diverse aquatic life and recreational activities. Proper treatment helps protect these sensitive water bodies from nutrient pollution and pathogens.

The plant discharges into the Crane Lake area, part of the Vermilion River watershed that flows into the Rainy River and eventually Lake of the Woods. This region is ecologically sensitive, supporting cold-water fisheries and migratory waterfowl. The secondary treatment process reduces organic pollutants and suspended solids, helping to maintain water quality in downstream lakes and rivers that are important for recreation and wildlife.