Quick Data Links

• Wisconsin NWIS Data for
  • All water categories
  • Streamflow
  • Ground-water levels
  • Water quality
  • Key to NWIS codes

• Current conditions (last 1-31 days)
  • WaterWatch for streamflow
  • FloodWatch
  • DroughtWatch
  • GroundWaterWatch
  • WaterQualityWatch

• Water data reports
  • Annual Water Data Reports
  • Water Use
  • Lakes
  • Quarterly Conditions
  • GWON

• Data portals
  • Water Data Explorer
  • Annual Data Mapper
  • Instantaneous Data Archive (IDA)
  • NAWQA water quality
  • Water Quality Web Services
  • Suspended sediment
  • Acid rain

• Other reports
  • Wisconsin Integrated Monitoring Network

USGS IN YOUR STATE

USGS Water Science Centers are located in each state.

Wisconsin ground-water-level data

The USGS Wisconsin Water Science Center and its partners monitor ground-water levels in hundreds of wells in Wisconsin. We determine ground-water resources from well measurements, by flow indicators at ground-water boundaries, and through indirect methods of measurement such as surface geophysics. Ground-water-level data are collected and stored as either as continuous time-series data from automated recorders or discrete field water-level measurements.

All Wisconsin data collected by the USGS are stored and made available to the Nation through the public NWISWeb portal which provide access to water-resources data collected at approximately 1.5 million sites in all 50 States.

Annually, the USGS finalizes and publishes the daily data in a series of Annual Water-data Reports. Wisconsin also publishes a Quarterly Water Conditions report.

Current ground-water-level conditions

Real-time ground-water-level networkThe Real-Time Ground-Water Level Network contains data typically recorded at 15-60 minute intervals, stored onsite, and then transmitted to USGS offices every 1 to 4 hours, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events. Data from real-time sites are relayed to USGS offices via satellite, telephone, and/or radio and are available for viewing within minutes of arrival. All real-time data are provisional and subject to revision.	Active ground-water-level networkThe Active Ground-Water Level Network contains water levels and well information from more than 20,000 U.S. wells that have been measured by the USGS or its cooperators at least once within the past 365 days. This network includes all of these wells, regardless of measurement frequency, aquifer monitored, or the monitoring objective.	Climate response ground-water-level network The Climate Response Network portrays the effect of climate on ground-water levels in unconfined aquifers or near-surface confined aquifers that are minimally affected by pumping or other anthropogenic stresses.
Data from 3 real-time instrumented ground-water-level collection sites	Data from 156 ground-water-level collection sites measured at least once within the past 365 days	Read Fact Sheet 2007-3003 on the Climate Response Network
U.S. current conditions	U.S. current conditions	U.S. current conditions

Daily values, statistics, and current field measurements

Ground-water-level data The NWISWeb is designed to retrieve data from the distributed National Water Information System (NWIS) databases and push the data to multiple remote webservers for display. NWISWeb strives to provide a Nationally consistent and seamless view of all USGS water data.  USGS ground-water-level data in NWISWeb Wisconsin Daily values are summarized from time-series data for each day for the period of record and may represent the daily mean, median, maximum, minimum, and/or other derived value. Daily values include approved, quality-assured data that may be published, and more recent provisional data, whose accuracy has not been verified. Daily time-series summaries from 42 sites County | Lat-Long Box | Hydrologic Unit Code (HUC) Real-time data are time-series (recorded at fixed intervals) data from automated equipment and represent the most current hydrologic conditions. Measurements are commonly recorded at 5-60 minute intervals and transmitted to the NWIS database every 1-4 hours. Real-time data are available online for 31 days. Real-time ground-water-level data from 3 sites Basin | County | Hydrologic Unit Code (HUC) Statistics are computed from approved daily mean time-series data at each site. These links provide summaries of approved historical daily values for daily, monthly, and annual (water year or calendar year) time periods.

Daily values are summarized from time-series data for each day for the period of record and may represent the daily mean, median, maximum, minimum, and/or other derived value. Real-time data are time-series data (recorded at fixed intervals) from automated equipment and represent the most current hydrologic conditions. Real-time data are available online for 31 days.

Historical ground-water-level conditions collected by the Ground Water Observation Network (GWON)

Historic ground-water-level data A alternate view of selected NWIS field measurements. Historic data from wells measured by the Wisconsin Ground Water Observation Netowrk (GWON). Historic GWON data Historic data of the Lake Level, Precipitation, and Water Table data at Little Sand Lake near Crandon, Wisconsin Crandon historic data

Access to historic water-level records of all wells monitored by the Ground Water Observation Network. Monthly and real-time data is collected in NWIS, but these data present a familiar subset of data collected by GWON.

Contacts

• Email the Wisconsin ground-water specialist, Chuck Dunning.
• Email the USGS National Ground Water Program