National Park Service GIS layers compiled for a water quality inventory report. The data includes locations of monitoring stations, industrial discharges, drinking intakes, gages, and impoundments from six EPA databases. Base layers such as roads, hydrography, and political boundaries are generally at a 1:100,000 scale.
Use Cases
- Map pollution sources based on industrial facility discharge locations.
- Analyze water monitoring network coverage based on station and gage locations.
- Assess drinking water infrastructure proximity to potential contaminants based on intake data.
- Model hydrological units and watersheds based on hydrography and political boundary layers.
Strengths
- Data compiled from six authoritative EPA national databases, including STORET and RF3 Hydrography.
- Includes multiple thematic layers for water quality analysis, such as monitoring stations and industrial discharges.
- Base GIS layers like roads and hydrography are generally provided at a 1:100,000 scale.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- The scales and availability of data layers vary depending on the source.
Provenance
- Source
- National Park Service Servicewide Inventory and Monitoring Program and Water Resources Division.
- Collection Method
- Compiled for a Baseline Water Quality Data Inventory and Analysis Report using EPA databases.
- Time Range
- null
- Freshness
- Last updated 2026-03-04 01:01:30.287132; freshness should be verified.
- Geography
- Appomattox Court House National Historical Park, Virginia, USA.