National Water Resource Measurements From 1.5 Million Sites

Water-resources data collected at approximately 1.5 million sites across all 50 U.S. states, the District of Columbia, and Puerto Rico. The dataset is provided by the U.S. Geological Survey (USGS) through its National Water Information System (NWIS). It covers measurements of surface water, groundwater, and water quality.

Use Cases

• Model streamflow trends using surface water discharge time-series data.
• Analyze groundwater level fluctuations from well monitoring station records.
• Assess regional water quality by examining parameters like temperature, pH, and specific conductance.
• Map water resource availability by joining site location data with measurement time-series.

Strengths

• Data from approximately 1.5 million monitoring sites provides wide spatial coverage.
• Includes measurements across three major categories: surface water, groundwater, and water quality.

Limitations

• Specific row counts, column details, and sample sizes for individual parameters are not provided.
• Data completeness and temporal resolution may vary significantly between the 1.5 million sites.
• The update frequency and recency of data for specific sites are unknown.

Provenance

Source

U.S. Geological Survey (USGS) National Water Information System (NWIS).

Collection Method

Measurements collected from a network of monitoring stations and sites.

Geography

All 50 U.S. states, the District of Columbia, and Puerto Rico.