PARRISH HCR LAGOON Wastewater Treatment Plant, Parrish, Alabama

PARRISH HCR LAGOON is a municipal wastewater treatment facility located in Parrish, Walker County, Alabama, United States. The plant serves a small population of 982 residents, reflecting its role in a rural community. It operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard level for small communities, and has a designed capacity of 556.45 m³/day. Current discharge volume is 378.54 m³/day, indicating operational capacity below design. The treatment process likely involves lagoon-based systems common in rural Alabama. The treated effluent is discharged into local streams that drain into the Black Warrior River watershed, ultimately reaching the Gulf of Mexico. The plant helps protect downstream water quality in a region known for its aquatic biodiversity and recreational fishing.

The plant discharges into tributaries of the Black Warrior River, which flows into the Mobile River and then into Mobile Bay and the Gulf of Mexico. This watershed supports diverse aquatic life, including fish and mussel species, and is important for regional water supply and recreation. The secondary treatment reduces organic pollutants and suspended solids, mitigating eutrophication risks in downstream waters.