Delaware Water Gap Water Quality GIS Layers at 1:100,000 Scale

National Park Service GIS data layers compiled for a Baseline Water Quality Data Inventory and Analysis Report for the Delaware Water Gap National Recreation Area. The data set includes small-scale base layers such as roads, hydrography, and political boundaries, generally at a 1:100,000 scale, used to map water quality monitoring stations and related features. The data was last updated on 2026-03-04.

Use Cases

• Mapping water quality monitoring station locations based on EPA database retrievals mentioned in the description
• Analyzing spatial relationships between industrial discharges and drinking water intakes based on the reported data layers
• Creating base maps for environmental reports using the included hydrography and political boundary layers
• Conducting watershed analysis using the hydrologic unit data referenced in the description

Strengths

• Data layers are compiled by the National Park Service Servicewide Inventory and Monitoring Program, an authoritative source.
• Includes features from six EPA national databases, such as STORET and River Reach File.
• Spatial scale is generally specified as 1:100,000.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Department of the Interior, National Park Service

Collection Method

Compiled from six United States Environmental Protection Agency (EPA) national databases for a specific park report.

Time Range

null

Freshness

Last updated 2026-03-04 00:56:55.661324; freshness should be verified.

Geography

Delaware Water Gap National Recreation Area