This page provides links to our map products related to Washington's water resources. For topographic and other USGS map products please visit USGS.gov.
NWIS Mapper - Surface Water
This link provides access to surface-water data via a map. It is suitable for retrieving data for individual sites, but you cannot retrieve data based on specific selection threshold (such as concentration) or for multiple sites at once.
NWIS Mapper - Water-Quality
This link provides access to water-quality data via a map. It is suitable for retrieving data for individual sites, but you cannot retrieve data based on specific selection thresholds (such as stage) or for multiple sites at once.
NWIS Mapper - Groundwater
This link provides access to groundwater data via a map. It is suitable for retrieving data for individual sites, but you cannot retrieve data based on specific selection thresholds (such as water level) or for multiple sites at once.