Watershed Modeling, Watershed Assessment, Nonpoint Source Pollution

Watershed assessments are required by the State of Georgia to help control nonpoint source pollution that may be associated with degradation of surface water quality and non-attainment of designated uses of streams. This is an important component in the planning process necessary for expanding wastewater treatment capacity as required by Georgia Environmental Protection Division's (GaEPD) current guidelines. The development in the service area will increase demands on existing utility infrastructure such as the storm water conveyance and treatment systems, and wastewater collection and treatment facilities. GaEPD requires local governments to conduct watershed assessments as a part of the National Pollution Discharge Elimination System (NPDES) permitting process for wastewater treatment plant expansion. In order to receive a new discharge permit, the county or municipality is required to develop a management plan that will address nonpoint source pollution within the treatment plant service area.