Arlington WWTP and Sewers - Secondary Treatment Plant in Arlington, Ohio

Arlington WWTP and Sewers is a municipal wastewater treatment facility located in Arlington, Hancock County, Ohio. The plant serves a population of 1,351 and operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal discharges. The plant has a designed capacity of 635.95 thousand gallons per day and currently treats an average daily flow of 643.52 thousand gallons per day, indicating operation near its design capacity. As a secondary treatment facility, it uses biological processes to remove organic matter and suspended solids before discharge. The treated effluent is discharged into a local water body that ultimately drains into the Lake Erie watershed via the Blanchard River and Maumee River systems. This region is part of the Great Lakes Basin, which supports diverse aquatic life and provides drinking water for millions. The plant's discharge contributes to the nutrient load in the watershed, a key concern for Lake Erie's water quality.

The plant discharges into a tributary of the Blanchard River, which flows into the Maumee River and then into Lake Erie. Lake Erie is the shallowest and most biologically productive of the Great Lakes, supporting a major fishery and recreational industry. The Maumee River watershed is a significant source of phosphorus and sediment to Lake Erie, contributing to harmful algal blooms. The plant's secondary treatment helps reduce organic pollutants, but nutrient removal may be limited.