Overview
ANCHORAGE SAND & GRAVEL - KLATT RD FACILITY is a stormwater outfall in Anchorage, Alaska, managing runoff from industrial sand and gravel operations. It operates under the US EPA NPDES MS4 permit framework.
ANCHORAGE SAND & GRAVEL - KLATT RD FACILITY is a stormwater outfall located at 1040 O'MALLEY RD in Anchorage, Alaska, within the Anchorage Municipality. This facility manages stormwater runoff from sand and gravel operations, a key industrial sector in the region. As a stormwater outfall, it discharges collected runoff into local waterways, playing a critical role in controlling erosion and preventing flooding. The facility operates under the regulatory framework of the US Clean Water Act, specifically through the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permits. Anchorage is designated as a Phase I MS4 community due to its population size, requiring comprehensive stormwater management programs. The facility's discharge is subject to monitoring and best management practices to minimize impacts on receiving waters. Anchorage's stormwater infrastructure is vital given the city's location in a subarctic climate with significant snowmelt and rainfall. The facility helps protect local creeks and the Cook Inlet watershed from sediment and pollutant loads associated with gravel processing. Proper stormwater management supports aquatic habitat and complies with state water quality standards.
Environmental context
Anchorage's stormwater outfalls discharge into sensitive water bodies including Campbell Creek and the Cook Inlet, which support salmon runs and other aquatic life. The region's glacial geology and seasonal freeze-thaw cycles increase erosion and sediment transport risks. Industrial stormwater from sand and gravel facilities can carry high sediment loads, requiring effective controls to prevent habitat degradation.
Frequently asked questions
The facility is located at 1040 O'MALLEY RD in Anchorage, Alaska, within the Anchorage Municipality.
It is a stormwater outfall that manages runoff from sand and gravel operations, discharging collected stormwater into local waterways under NPDES MS4 permits.
The facility operates under the US Clean Water Act's NPDES program, specifically Phase I MS4 permits for Anchorage, requiring stormwater management plans and best management practices.
Stormwater from such facilities can carry high sediment loads, which may impact aquatic habitats and water quality. Proper management helps protect local creeks and the Cook Inlet watershed.
Anchorage's subarctic climate with snowmelt and rainfall, combined with industrial activities, necessitates robust stormwater control to prevent flooding, erosion, and pollution of sensitive water bodies supporting salmon.
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