Overview
LOWER KALSKAG is a stormwater outfall in Lower Kalskag, Alaska, United States. It serves the local community under the US EPA NPDES MS4 regulatory framework.
LOWER KALSKAG is a stormwater outfall located at 69 Boundary St in Lower Kalskag, Alaska, within Bethel Census Area. This facility operates as part of the municipal separate storm sewer system (MS4) serving the small community of Lower Kalskag. As a stormwater outfall, it discharges collected stormwater runoff from urban areas into receiving waters. The facility operates under the US EPA National Pollutant Discharge Elimination System (NPDES) MS4 permit program, which regulates stormwater discharges from municipal systems. For small MS4s like this one in Alaska, Phase II rules apply, requiring stormwater management programs to reduce pollutant discharges to the maximum extent practicable. The outfall likely serves a primarily residential catchment with some local commercial activity. Located in the Yukon-Kuskokwim Delta region, this outfall discharges into the Kuskokwim River watershed, an important waterway for subsistence fishing and local ecology. Proper stormwater management helps protect water quality in this sensitive Arctic ecosystem, where cold temperatures and permafrost influence runoff patterns and pollutant transport.
Environmental context
The Kuskokwim River watershed supports critical salmon runs and subsistence fisheries for Alaska Native communities. Stormwater runoff from Lower Kalskag can carry sediment, nutrients, and pollutants from roads and residential areas into this sensitive waterbody. Cold climate conditions and permafrost affect infiltration rates and pollutant fate, making stormwater management particularly important for protecting aquatic habitat and community water resources.
Frequently asked questions
The LOWER KALSKAG stormwater outfall is located at 69 Boundary St in Lower Kalskag, Alaska, within Bethel Census Area, United States.
It is a stormwater outfall that discharges collected stormwater runoff from the municipal separate storm sewer system (MS4) of Lower Kalskag into receiving waters, helping to manage urban runoff and reduce flooding.
This outfall operates under the US EPA National Pollutant Discharge Elimination System (NPDES) MS4 permit program. As a small MS4 in Alaska, it is subject to Phase II rules requiring a stormwater management program to control pollutant discharges.
The outfall discharges into the Kuskokwim River watershed, which supports salmon runs and subsistence fisheries. Proper stormwater management helps protect water quality in this sensitive Arctic ecosystem.
Cold temperatures and permafrost reduce infiltration and alter pollutant transport, requiring adapted stormwater management practices such as snowmelt runoff control and erosion prevention during spring thaw.
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