OnDemand Topo Maps Officially Join USGS National Map Offerings
The people have spoken! OnDemand Topo maps and topoBuilder were so popular that we're making topoBuilder a permanent offering of the National Map.
The people have spoken! OnDemand Topo maps and topoBuilder were so popular that we're making topoBuilder a permanent offering of the National Map.
USGS National Water Dashboard
Presenting real-time stream, lake and reservoir, precipitation and groundwater data for 13,500+ USGS real-time observation stations across the US
Presenting real-time stream, lake and reservoir, precipitation and groundwater data for 13,500+ USGS real-time observation stations across the US
USGS-led study estimates lithium in groundwater that can be used for drinking water
The new estimates can help health researchers determine potential connections between lithium exposure and human health outcomes
The new estimates can help health researchers determine potential connections between lithium exposure and human health outcomes
Per- and polyfluoroalkyl substances (PFAS) in United States tapwater: Comparison of underserved private-well and public-supply exposures and associated health implications
Tapwater from 716 locations (269 private-wells; 447 public supply) across the US was collected during 2016–2021 including three locations where temporal sampling was conducted. Seventeen PFAS were observed at least once.
Tapwater from 716 locations (269 private-wells; 447 public supply) across the US was collected during 2016–2021 including three locations where temporal sampling was conducted. Seventeen PFAS were observed at least once.
The 3D Elevation Program—Supporting Ohio’s Economy
High-quality elevation data are proving to be a resource of great economic value in dealing with many important issues in Ohio.
High-quality elevation data are proving to be a resource of great economic value in dealing with many important issues in Ohio.
USGS Fluvial Hazards Primer
The primer highlights methods used in regional and reach-scale assessments of fluvial erosion hazards (FEH).
The primer highlights methods used in regional and reach-scale assessments of fluvial erosion hazards (FEH).
Why Do We Need a Nowcast?
Real-Time Assessments of Water Quality—A Nowcast for Escherichia coli and Cyanobacterial Toxins
Real-Time Assessments of Water Quality—A Nowcast for Escherichia coli and Cyanobacterial Toxins
Ohio-Kentucky-Indiana Water Science Center
Welcome to the Ohio-Kentucky-Indiana Water Science Center (OKI WSC) webpage! We work closely with our local, state, federal, and tribal partners to provide unbiased and timely water resource information on streamflow, water quality, water-use, and groundwater data to resource managers and the public. Our Center includes the key water resources of the Ohio River, Lake Erie, and Lake Michigan.
Annual total phosphorus loads to the Great Lakes
Annual total phosphorus loads to the Great Lakes
Monthly and annual total phosphorus loads were estimated for water years 2014 through 2018 for 23 streamgaged (gaged) sites on tributaries to the Great Lakes.
USGS Kentucky Drought Condition Monitor
USGS Kentucky Drought Condition Monitor
The USGS Ohio-Kentucky-Indiana Water Science Center and Kentucky Agricultural Development Board rely upon several parameters to monitor water-supply-drought conditions.
Current Data
Current Data
This data was formerly known to most as the "Realtime Data" in table format. Although the format has not changed, we now refer to it as "Current Conditions".
News
Three historic USGS streamgages recognized by new World Meteorological Organization designation
Three historic USGS streamgages recognized by new World Meteorological Organization designation
Spring 2023 Newsletter
Spring 2023 Newsletter
Winter 2022 Newsletter
Winter 2022 Newsletter
Publications
Changes in phosphorus concentration and flux from 2011 to 2023 in major U.S. tributaries to the Laurentian Great Lakes Changes in phosphorus concentration and flux from 2011 to 2023 in major U.S. tributaries to the Laurentian Great Lakes
Reducing phosphorus (P) flux to the Great Lakes is critical for improving water quality and controlling eutrophication. We used 13 water years (2011–2023) of U.S. Geological Survey data from 24 major U.S. tributaries (representing 47% of the U.S. Great Lakes watershed area) to evaluate temporal changes in orthophosphate (PO4-P) and total P (TP) using Weighted Regressions on Time...
Flood-inundation maps for Río de la Plata in and near Comerío, Puerto Rico, 2025 Flood-inundation maps for Río de la Plata in and near Comerío, Puerto Rico, 2025
Digital flood-inundation maps for a 3.1-mile reach of Río de la Plata in and near Comerío, Puerto Rico, were created by the U.S. Geological Survey (USGS). Water-surface profiles were computed for the stream reach by using a one-dimensional steady-state step-backwater model. The model was calibrated to the current (2025) stage-streamflow relation (rating curve 11.0) for the USGS...
Microbial source tracking in Cedar and Crane Creeks near Curtice, Ohio, 2021 Microbial source tracking in Cedar and Crane Creeks near Curtice, Ohio, 2021
Elevated concentrations of Escherichia coli (E. coli) bacteria and signs of sewage lead to impairment of Cedar and Crane Creeks near the town of Curtice, Ohio. In 2021, the U.S. Geological Survey, in cooperation with Ohio Environmental Protection Agency, collected samples and analyzed them for concentrations of E. coli and microbial source tracking (MST) markers to help characterize the...
Science
Hydrogeologic Mapping and Three-Dimensional Geologic Modeling of Glacial Deposits in a Multicounty Area of Southeastern Michigan, Northeastern Indiana, and Northwestern Ohio
Groundwater resources in southern Michigan, northeastern Indiana, and northwestern Ohio, have been a recurring subject of interest related to sources of public, irrigation, and other water supplies and the potential of glacial deposits to supply water to adjacent parts of Ohio. The glacial deposits that are part of the aquifer system informally known as the “Michindoh aquifer” are a principal...
Wings of Change: The Environment's Influence on Bird Flu
Low pathogenic avian influenza (LPAI) viruses naturally occur in wild birds and are rarely fatal. Highly pathogenic avian influenza (HPAI) viruses are highly contagious, spread rapidly, are often fatal to poultry, and have been responsible for worldwide outbreaks. Together, LPAI and HPAI are generally referred to as either avian influenza viruses (AIVs) or "the bird flu."
Groundwater Age Estimates, Groundwater Quality, and Hydrogeologic Characteristics of Chase Street Flowing Well and Similar Confined Wells, Little Calumet River Basin, Indiana
In cooperation with The Little Calumet River Basin Development Commission and the Urban Waters Federal Partnership The Little Calumet River Basin Development Commission (LCRBDC) is developing a park around a local cultural landmark, known locally as the Chase Street flowing well, in Gary, Indiana, a community in the Urban Waters Federal Partnership--Northwest Indiana Area. Groundwater from the...