Loudoun Pollution Sources
Loudoun County
Updated Oct 10, 2026
About this dataset
This identifies pollution sources in the county that have been identified and assigned a unique SITE-ID number. The majority of pollution sources are individual sewage disposal (septic/drain field) systems. Note that all identified pollution sources are not necessarily causing pollution but, rather, can be simply a potential source of pollution. Information for pollution sources comes primarily from the Health Department permitting and inspection process and/or date of discovery from field verification.
It is a sub-set of the water wells and pollution sources data.
Data and resources (6)
- HTML
ArcGIS Hub Dataset
Modified May 10, 2026Map preview available
- ArcGIS
ArcGIS GeoService
Modified May 10, 2026Map preview available
- CSV
CSV
Modified Aug 25, 2024Table and Data API available
- ZIP
Shapefile
Modified May 10, 2026Map preview available
- GeoJSON
GeoJSON
Modified May 10, 2026Map preview available
- KML
KML
Modified May 10, 2026Map preview available