USGS National Water Information System

Real-Time Streamflow & Groundwater Data · Nationwide

Serves: Nationwide

The USGS National Water Information System (NWIS) provides real-time and historical data on streamflow, groundwater levels, and water quality from over 1.5 million sites across the US. Farmers and irrigation designers use NWIS to evaluate surface water availability for pump intake siting, monitor well water levels during drought, and understand seasonal flow patterns that affect irrigation scheduling.

Features: 1.5M monitoring sites · Real-time streamflow · Groundwater levels · Historical water data

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Frequently Asked

What is USGS National Water Information System?
The USGS National Water Information System (NWIS) provides real-time and historical data on streamflow, groundwater levels, and water quality from over 1.
Where does USGS National Water Information System serve?
USGS National Water Information System is a nationwide resource serving farmers in all 50 US states.
Does USGS National Water Information System have a website?
Yes — you can visit USGS National Water Information System at https://waterdata.usgs.gov/nwis.
What does USGS National Water Information System specialize in?
Key features: 1.5M monitoring sites · Real-time streamflow · Groundwater levels · Historical water data.