Overview
PETERSBURG JAMES A JOHNSON AIRPORT is a stormwater outfall in Petersburg, Alaska, managing runoff from airport facilities. It operates under US EPA NPDES MS4 regulations for stormwater discharge.
PETERSBURG JAMES A JOHNSON AIRPORT is a stormwater outfall located at 1450 Haugen Drive in Petersburg, Alaska. This facility manages stormwater runoff from the airport infrastructure, serving the Petersburg Census Area. As a stormwater outfall, it discharges collected runoff into local water bodies, playing a key role in managing urban and industrial stormwater in the region. The facility operates under the regulatory framework of the US Clean Water Act and the EPA's National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permits. While specific discharge volumes are not detailed, the airport's stormwater system is designed to handle runoff from paved surfaces, buildings, and aircraft areas. Typical stormwater management at airports includes oil-water separators, detention basins, and filtration systems to reduce pollutants. Located in Southeast Alaska, the facility discharges into a region known for heavy rainfall and sensitive aquatic ecosystems. Proper stormwater management is critical to prevent contamination of local streams and the marine environment. The outfall helps mitigate flooding and reduces the transport of pollutants such as sediment, deicing fluids, and petroleum hydrocarbons from airport operations into receiving waters.
Environmental context
Petersburg is in the Tongass National Forest region, characterized by temperate rainforest with high annual precipitation. Stormwater runoff from the airport can carry pollutants like deicing fluids, fuel residues, and sediment into nearby water bodies, which may support salmon and other aquatic species. The facility's discharge must comply with water quality standards to protect these ecosystems.
Frequently asked questions
The stormwater outfall is located at 1450 Haugen Drive in Petersburg, Alaska, within the Petersburg Census Area.
A stormwater outfall collects and discharges runoff from impervious surfaces like roads, parking lots, and buildings into receiving waters, helping to manage flooding and reduce pollutant loads.
Common pollutants include deicing fluids, fuel residues, sediment, and heavy metals from aircraft and vehicle operations. Treatment systems like oil-water separators and detention basins help mitigate these.
This facility operates under the US Clean Water Act and EPA's NPDES MS4 permit program, which requires stormwater management plans to control pollution to the maximum extent practicable.
Alaska's sensitive aquatic ecosystems, including salmon streams, are vulnerable to pollution from runoff. Proper management protects water quality and habitat in regions with high precipitation.
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