SPRINGPORT STP - Secondary Wastewater Treatment in Springport Township, Michigan

SPRINGPORT STP is a municipal wastewater treatment facility located at 9154 Ferris Road in Springport Township, Jackson County, Michigan. The plant serves a small population of 694 residents, reflecting its role in a rural community within the Great Lakes region. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal facilities of this scale. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity is 401.25 volume units, with an average daily discharge of 302.83 volume units, indicating operational headroom. Treated effluent from SPRINGPORT STP is discharged into local waterways that ultimately drain into the Great Lakes basin, specifically Lake Michigan via the Grand River watershed. The plant's operations are subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Michigan Department of Environment, Great Lakes, and Energy (EGLE), ensuring compliance with water quality standards to protect downstream aquatic ecosystems.

SPRINGPORT STP discharges into tributaries of the Grand River, which flows into Lake Michigan, a vital freshwater resource supporting diverse aquatic life and regional water supply. The plant's location in an inland rural area reduces direct coastal impact, but its effluent contributes to the nutrient load in the Grand River watershed, which is monitored for phosphorus and nitrogen to prevent eutrophication in Lake Michigan.