Geology topics

Research about Eagle River-Chugiak area

Source-linked reports with geographic coverage including Eagle River-Chugiak area.

2 recordsLinked to original sources

USGS1979

Hydrogeologic data for the Eagle River-Chugiak area, Alaska

Water for the Eagle River-Chugiak area is provided by private, subdivision and trailer court wells. Data from these wells were stud- ied to determine aquifer materials, yield, well depth and depth to water. The aquifer material is unconsolidated glacial or alluvial gravel and sand and bedrock from the McHugh Complex, the unnamed metamorphic complex and the Kenai Formation. The median well yield for bedrock wells is 2 gallons per minute and the median well yield for wells completed in unconsolidated aquifers is 10 gallons per minute. Well depths may vary widely where wells are drilled into bedrock or glacial till but are more uniform where wells are drilled into alluvial gravels and sand. A continuous water table is not defined in the Eagle River-Chugiak area.

Alaska↗

USGS1974

Geology and ground water for land-use planning in the Eagle River-Chugiak area, Alaska

The Eagle River — Chugiak area is a rapidly growing residential part of the Greater Anchorage Area Borough, south-central Alaska. High-density, urban development in some parts of the area may be restricted because of the nature of the surficial geologic materials and their hydrologic characteristics. This report assembles all information collected by the U.S. Geological Survey on the geology and ground-water resources of the Eagle River — Chugiak area. The study area lies mostly within the Cook Inlet — Susitna Lowland and consists of low hills and intervening channels, hummocky ridges, sloping alluvial fans, and low-lying tidal flats that border Knik Arm. The eastern part of the area lies on the steep slopes of the Chugach Mountains. Drainage is generally to the west and northwest, except that locally the slopes drain southwesterly to the Eagle River, the major stream of the area.

Alaska↗