Web Tools

The Bull Trout Population Dynamics Simulation Tool visualizes and provides estimates of bull trout populations in subwatersheds (HUC 12).

The Central Valley has four hydrologic regions, from north to south: the Sacramento Valley, the Delta & Eastside Streams, the San Joaquin Basin, and the Tulare Basin. Water flows from Sacramento Valley, Tulare Basin, and the San Joaquin Basin, into the Delta & Eastside Streams through the Central Valley's only natural outlet, the Carquinez Strait, on its way to the Pacific Ocean.

The Central Valley Hydrologic Model version 2 (CVHM2) is an integrated surface–subsurface hydrologic model, representing the major components of the hydrologic system of California’s Central Valley. This new decision support tool is useful for testing water management strategies in California's Central Valley.

This Interactive Atlas of Critical Minerals shows you where critical minerals are produced. Discover which countries produce critical minerals, what percent of the world production they are responsible for, and details on what each mineral is used for.

The USGS-DOE Cooperative Studies and Groundwater Monitoring in Nevada website provides an interactive and easy-to-use interface to access groundwater levels, groundwater withdrawal, and water-temperature data for wells on and adjacent to the NNSS.

The USGS-NNSS Regional Groundwater Explorer web application is a user-friendly and interactive interface that provides access to a comprehensive database of groundwater levels, hydrologic conditions, construction, and descriptive narratives for wells on and adjacent to the NNSS.

Mapper of seasonal nitrogen and phosphorus loading to the Puget Sound by source and HUC12 watershed, 2000 through 2020

This is a tool to help figure out where groundwater is going.

The USGS Real-Time Flood Impact Map helps communities stay safe by providing real-time information and visuals about locations in their area that may be experiencing flooding.

This ArcGIS Online Dashboard provides an interactive platform to view drilling waste land application data in Oklahoma.

Explore water-quality data collected from over 3,000 sites within the Kootenai River Basin.

These data and application are provided as part of USGS research on contaminants in surface waters across the United States and supported by the USGS Water Mission Area Proxies Project and the USGS Ecosystem Mission Area Environmental Health Program (Toxic Substances Hydrology).