The LakeCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: State Soil Geographic Database (STATSGO) (KKACT)

Published by U.S. Environmental Protection Agency, Office of Research and Development (ORD), Center for Public Health and Environmental Assessment (CPHEA), Pacific Ecological Systems Division (PESD), | U.S. Environmental Protection Agency | Metadata Last Checked: July 13, 2025 | Last Modified: 2023-11-13

This dataset represents the soil characteristics within individual local and accumulated upstream catchments for NHDPlusV2 Waterbodies based on the STATSGO landscape rasters. Catchment boundaries in LakeCat are defined in one of two ways, on-network or off-network. The on-network catchment boundaries follow the catchments provided in the NHDPlusV2 and the metrics for these lakes mirror metrics from StreamCat, but will substitute the COMID of the NHDWaterbody for that of the NHDFlowline. The off-network catchment framework uses the NHDPlusV2 flow direction rasters to define non-overlapping lake-catchment boundaries and then links them through an off-network flow table. This data set is derived from the STATSGO landscape rasters for the conterminous USA. Individual rasters (Landscape Layers) of depth to bedrock (rckdep), organic material (om), percent clay (clay), percent sand (sand), permeability (perm), soil erodibility (KFFACT/KFACT), and water table depth (wtdep) were used to calculate soil characteristics for each NHDPlusV2 catchment. The soil characteristics were summarized to produce local catchment-level and watershed-level metrics as a continuous data type. The STATSGO data are distributed in two sets, STATSGO_Set1 and STATSGO_Set2, based on common NoData locations in each set of soil GIS layers.

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Complete Metadata

bureauCode	[ "020:00" ]
dataQuality	true
describedBy	https://www.epa.gov/national-aquatic-resource-surveys/lakecat-metrics-and-definitions
describedByType	text/html
identifier	AA3ADCFD-0758-47FC-A069-31E95A116A3D
issued	2015-04-23
landingPage	https://www.epa.gov/national-aquatic-resource-surveys/lakecat-dataset
language	[ "en-US" ]
programCode	[ "020:072" ]
references	[ "https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=AA3ADCFD-0758-47FC-A069-31E95A116A3D", "https://www.epa.gov/node/276204" ]
rights	public (Data asset is or could be made publicly available to all without restrictions)
spatial	-125.0,24.5,-66.5,49.5
temporal	2015/2030
theme	[ "environment" ]

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