Iowa Data Online
National Water Information System: Web Interface (NWISWeb)
Data for Iowa - Real-time and historical data for surface & groundwater sites
WaterWatch - Real-time and historical streamflow conditions.
Groundwater Watch - Real-time and historical groundwater conditions.
- Active Water Levels
- Below Normal Groundwater Levels
- Climate Response Network
- Real-Time Groundwater Levels
- Long-Term Groundwater Data
Water Quality Watch - Real-time and historical water-quality conditions.
WaterAlert - Receive instant updates on real-time water conditions via email or text messages.
Annual Water-Data Reports
Water-resources data are published annually by the U.S. Geological Survey for use by engineers, scientists, managers, educators, and the general public. Beginning with water year 2006, the annual Water-Data Reports have been published as individual electronic Site Data Sheets in PDF format.
Reports for water years prior to 2006 are available from the Publications Warehouse. For water years 1971 to 2005, the annual Water-Data Reports were published on a state-boundary basis. Prior to 1971, water-resources data were published in a series of Water-Supply Papers and in other reports.
Kansas City, MO
Rock Island, IL
St. Paul, MN
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Advanced Hydrologic Prediction Service
Interactive Weather Information Network