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
Computing flow-field distortion coefficients from well-construction and formation properties Computing flow-field distortion coefficients from well-construction and formation properties
Direct measurements of groundwater velocity made with borehole flowmeters in screened wells must be compensated for the effects of flow-field distortion (also known as borehole acceleration). A theoretical equation developed by Drost et al. (1968) and simple inputs describing hydraulic properties of well construction and geologic formation were programmed into an Excel workbook to...
Flood-frequency estimates for Kentucky streamgages based on data through water year 2021 and results of updating the fundamental layers in Kentucky StreamStats Flood-frequency estimates for Kentucky streamgages based on data through water year 2021 and results of updating the fundamental layers in Kentucky StreamStats
The U.S. Geological Survey, in cooperation with the Kentucky Transportation Cabinet, analyzed flood-frequency statistics for streamgages in Kentucky. Using annual peak-flow data through water year 2021, flood-frequency estimates were computed for 261 streamgages, including unregulated and regulated sites as well as sites with mixed regulation records. Methods followed those outlined in...
Evaluation of a eutrophication Beneficial Use Impairment in the Grand Calumet River Area of Concern in northwest Indiana, 2021–22 Evaluation of a eutrophication Beneficial Use Impairment in the Grand Calumet River Area of Concern in northwest Indiana, 2021–22
Eutrophication has been regularly documented in the Grand Calumet River and Indiana Harbor Canal in northwest Indiana. The area has undergone various remediation efforts since the development of a Remedial Action Plan for the area in response to a 1987 amendment to the Great Lakes Water Quality Agreement of 1978 between the United States and Canada and the designation of the Grand...
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...