P Street Wastewater Treatment Facility - Stormwater Outfall in Fort Smith, Arkansas

P Street Wastewater Treatment Facility is a stormwater outfall located at 13 N P St, Fort Smith, Sebastian County, Arkansas, United States. The facility is operational and serves the Fort Smith area, managing stormwater discharges within an urban catchment. As a stormwater outfall, it plays a role in conveying runoff from the municipal separate storm sewer system (MS4) to receiving waters. The facility operates under the regulatory framework of the US Clean Water Act, specifically the EPA NPDES MS4 permit program. Arkansas is subject to Phase II MS4 requirements for small municipalities, which include stormwater management plans and best management practices to reduce pollutant discharges. The facility's NAICS codes (221320 for sewage treatment facilities and 336211 for motor vehicle body manufacturing) suggest a mixed urban and industrial catchment area. Environmental significance lies in its role in managing stormwater quality and quantity in Fort Smith, a city along the Arkansas River. Proper operation helps mitigate flooding and reduces pollutant loads to local water bodies, supporting community resilience and water quality goals. The facility's performance is tied to compliance with local MS4 permit conditions and broader watershed protection efforts.

Fort Smith is located in the Arkansas River Valley, with a humid subtropical climate that brings frequent rainfall and potential for flash flooding. Stormwater runoff from urban and industrial areas can carry pollutants such as sediment, nutrients, heavy metals, and hydrocarbons into the Arkansas River and its tributaries. The P Street outfall discharges into a water body that may be subject to Total Maximum Daily Load (TMDL) requirements for impairments like turbidity or bacteria, making stormwater management critical for local water quality.