Alton Collection System - Projected Wastewater Treatment Plant in Whisperwood Estates, Louisiana

Alton Collection System is a planned wastewater treatment facility located in Whisperwood Estates, St. Tammany Parish, Louisiana, United States. Designed to serve a population of 748, the plant will provide secondary treatment for the local community. As a projected facility, Alton Collection System will operate under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The plant's discharge volume is estimated at 356.78 megaliters per year, reflecting the scale of a small community system. The plant's proximity to the Gulf of Mexico (within 10 km) means its treated effluent will eventually reach coastal waters. The facility plays a role in protecting local waterways and the sensitive estuarine environment of the northern Gulf Coast.

The plant discharges into local waterways that drain into Lake Pontchartrain and ultimately the Gulf of Mexico. This region supports diverse aquatic life, including fish and shellfish, and is an important migratory corridor for birds. The secondary treatment process helps reduce nutrient and pollutant loads to these sensitive coastal ecosystems.