Skip to main content
U.S. flag

An official website of the United States government

Gary R Martin (Former Employee)

Science and Products

Boy running on lawn under water sprinkler

Water Use - Ohio Kentucky Indiana

The USGS National Water-Use Information Program collects data about the quantities of water withdrawn for specific uses: public supply, domestic, industrial, mining, thermoelectric power, irrigation, livestock, and aquaculture. On a broader scale, we research how humans interact with the hydrologic cycle throuugh water withdrawal, water delivery, consumptive use, return flows, wastewater reuse...
By
Ohio-Kentucky-Indiana Water Science Center
Water Use - Ohio Kentucky Indiana

Water Use - Ohio Kentucky Indiana

The USGS National Water-Use Information Program collects data about the quantities of water withdrawn for specific uses: public supply, domestic, industrial, mining, thermoelectric power, irrigation, livestock, and aquaculture. On a broader scale, we research how humans interact with the hydrologic cycle throuugh water withdrawal, water delivery, consumptive use, return flows, wastewater reuse...
Learn More
Screenshot of the Indiana streamstats web site

Low-Flow Statistics for Indiana Streams

Indiana and Kentucky scientists have produced new low-flow statistics for Indiana streams, specifically for 7-day, 10-year low flow (7Q10); 30-day, 10-year low flow (30Q10); 1-day, 10-year low flow (1Q10); and harmonic mean streamflow. The low-flow statistics are critical for the state of Indiana to administer the National Pollutant Discharge Elimination System (NPDES) permit program, watershed...
By
Ohio-Kentucky-Indiana Water Science Center
Low-Flow Statistics for Indiana Streams

Low-Flow Statistics for Indiana Streams

Indiana and Kentucky scientists have produced new low-flow statistics for Indiana streams, specifically for 7-day, 10-year low flow (7Q10); 30-day, 10-year low flow (30Q10); 1-day, 10-year low flow (1Q10); and harmonic mean streamflow. The low-flow statistics are critical for the state of Indiana to administer the National Pollutant Discharge Elimination System (NPDES) permit program, watershed...
Learn More
Filter Total Items: 15

Data and knowledge gaps of a water bottling facility inventory and select water-use dataset, United States Data and knowledge gaps of a water bottling facility inventory and select water-use dataset, United States

In 2023, the U.S. Geological Survey developed a national inventory of water bottling facilities for the United States, including information about locations, water sources, water use, and a collection of other attributes. The purpose of the inventory was to provide information about water bottling facilities needed to assess and improve understanding of local-, regional-, and national...
Authors
Carol Luukkonen, Cheryl Buchwald, Gary Martin, Allegra Johnson Mckee
By
Water Resources Mission Area, Water Availability and Use Science Program, Upper Midwest Water Science Center

Estimating selected low-flow frequency statistics and harmonic-mean flows for ungaged, unregulated streams in Indiana Estimating selected low-flow frequency statistics and harmonic-mean flows for ungaged, unregulated streams in Indiana

Information on low-flow characteristics of streams is essential for the management of water resources. This report provides equations for estimating the 1-, 7-, and 30-day mean low flows for a recurrence interval of 10 years and the harmonic-mean flow at ungaged, unregulated stream sites in Indiana. These equations were developed using the low-flow statistics and basin characteristics...
Authors
Gary Martin, Kathleen Fowler, Leslie Arihood
By
Ohio-Kentucky-Indiana Water Science Center, StreamStats

Nitrate Trends in Minnesota Rivers Nitrate Trends in Minnesota Rivers

The objective of this study was to assess long-term trends (30 to 35 years) of flow-adjusted concentrations of nitrite+nitrate-N (hereinafter referred to as nitrate) in a way that would allow us to discern changing trends. Recognizing that these trends are commonly different from one river to another river and from one part of the state to another, our objective was to examine as many...
Authors
Dave Wall, Dave Christopherson, Dave Lorenz, Gary Martin

Methods for estimating selected low-flow frequency statistics for unregulated streams in Kentucky Methods for estimating selected low-flow frequency statistics for unregulated streams in Kentucky

This report provides estimates of, and presents methods for estimating, selected low-flow frequency statistics for unregulated streams in Kentucky including the 30-day mean low flows for recurrence intervals of 2 and 5 years (30Q2 and 30Q5) and the 7-day mean low flows for recurrence intervals of 5, 10, and 20 years (7Q2, 7Q10, and 7Q20). Estimates of these statistics are provided for...
Authors
Gary Martin, Leslie Arihood
By
Ohio-Kentucky-Indiana Water Science Center

Concentrations, and estimated loads and yields of total nitrogen and total phosphorus at selected water-quality monitoring network stations in Kentucky, 1979-2004 Concentrations, and estimated loads and yields of total nitrogen and total phosphorus at selected water-quality monitoring network stations in Kentucky, 1979-2004

To evaluate the State’s water quality, the Kentucky Division of Water collects data from a statewide network of primary ambient stream water-quality monitoring stations and flexible, rotating watershed-monitoring stations. This ambient stream water-quality monitoring network program is directed to assess the conditions of surface waters throughout Kentucky. Water samples were collected...
Authors
Angela Crain, Gary Martin
By
Ohio-Kentucky-Indiana Water Science Center

Trends in Surface-Water Quality at Selected Ambient-Monitoring Network Stations in Kentucky, 1979-2004 Trends in Surface-Water Quality at Selected Ambient-Monitoring Network Stations in Kentucky, 1979-2004

Increasingly complex water-management decisions require water-quality monitoring programs that provide data for multiple purposes, including trend analyses, to detect improvement or deterioration in water quality with time. Understanding surface-water-quality trends assists resource managers in identifying emerging water-quality concerns, planning remediation efforts, and evaluating the
Authors
Angela Crain, Gary Martin
By
Ohio-Kentucky-Indiana Water Science Center

Estimating the magnitude of peak flows for streams in Kentucky for selected recurrence intervals Estimating the magnitude of peak flows for streams in Kentucky for selected recurrence intervals

This report gives estimates of, and presents techniques for estimating, the magnitude of peak flows for streams in Kentucky for recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500 years. A flowchart in this report guides the user to the appropriate estimates and (or) estimating techniques for a site on a specific stream. Estimates of peak flows are given for 222 U.S. Geological...
Authors
Glenn Hodgkins, Gary Martin

Estimating mean annual streamflow of rural streams in Kentucky Estimating mean annual streamflow of rural streams in Kentucky

Mean annual streamflow ( Q a ), defined as the mean of the series of annual mean streamflow values, was determined for selected rural stream sites in Kentucky. Streamflow data for the available period of record through the 1999 water year (October 1, 1998-September 30, 1999) at 235 continuous-record streamflow-gaging stations with at least 5 years of record located in and adjacent to...
Authors
G. Martin

Hydrologic and water-quality characterization and modeling of the Chenoweth Run basin, Jefferson County, Kentucky Hydrologic and water-quality characterization and modeling of the Chenoweth Run basin, Jefferson County, Kentucky

No abstract available.
Authors
Gary Martin, Phillip Zarriello, Allison Shipp
By
Water Resources Mission Area, Ohio-Kentucky-Indiana Water Science Center, New England Water Science Center

Estimation of peak-discharge frequency of urban streams in Jefferson County, Kentucky Estimation of peak-discharge frequency of urban streams in Jefferson County, Kentucky

An investigation of flood-hydrograph characteristics for streams in urban Jefferson County, Kentucky, was made to obtain hydrologic information needed for waterresources management. Equations for estimating peak-discharge frequencies for ungaged streams in the county were developed by combining (1) long-term annual peakdischarge data and rainfall-runoff data collected from 1991 to 1995...
Authors
Gary Martin, Kevin Ruhl, Brian Moore, Martin Rose

Bridge-Scour Data Management System user's manual Bridge-Scour Data Management System user's manual

The Bridge-Scour Data Management System (BSDMS) supports preparation, compilation, and analysis of bridge-scour data. The BSDMS provides interactive storage, retrieval, selection, editing, and display of bridge-scour data sets. Bridge-scour data sets include more than 200 site and measurement attributes of the channel geometry, flow hydraulics, hydrology, sediment, geomorphic-setting...
Authors
Mark Landers, David Mueller, Gary Martin

Flow duration of Kentucky streams through 1990; historical and monthly flow characteristics, including the effects of reservoirs Flow duration of Kentucky streams through 1990; historical and monthly flow characteristics, including the effects of reservoirs

This report presents flow-duration tables and plots for selected streamflow sites in Kentucky with three or more years of continuous record through 1990. Flow duration describes the frequency with which given streamflows are equalled or exceeded. The flow-duration tables were computed using daily mean discharge values for the entire period specified and for each month of the period...
Authors
K.J. Ruhl, R.J. Burns, G. Martin, D.P. Allgeier

Non-USGS Publications**

Martin, Gary R., Fowler, Kathleen K., and Arihood, Leslie D., 2016, Methods for estimating selected low-flow statistics for ungaged, unregulated streams in Indiana, Indiana Water Monitoring Council Symposium, December 12, 2016
Martin, Gary R., 2014, Kentucky StreamStats water-resources web application: Implementation of selected low- and mean-flow estimating equations, Proceedings of the Kentucky Water Resources Annual Symposium, March 10, 2014, Abstract, 2p
Martin, Gary R. and Arihood, Leslie D., 2010, Methods for estimating low-flow frequencies for streams in Kentucky Proceedings of the Kentucky Water Resources Annual Symposium, March 22, 2010, Abstract, 2p
Martin, Gary R., Evans Dan W., and Odom, Kenneth R., 2006, Low-flow characteristics of streams in Kentucky, Proceedings of the Kentucky Water Resources Annual Symposium, March 2, 2006, Abstract, 2p
Martin, Gary R., 2001, Hydrologic modeling of the Chenoweth Run Basin, Jefferson County, Kentucky: Proceedings of the Kentucky Water Resources Annual Symposium, February 23, 2001, Abstract, 2 p.
Martin, Gary R. and Ruhl, Kevin J., 1998, Techniques for estimating peak-discharge frequency of urban streams in Jefferson County, Kentucky: Proceedings of the Kentucky Water Resources Annual Symposium, February 11, 1998, Abstract, 2 p.
Martin, Gary R., and Ruhl, Kevin J., 1993, Regionalization of harmonic-mean streamflows in Kentucky: Proceedings of the Kentucky Water Resources Symposium, December 16, 1993, Abstract, 1 p.
Martin, Gary R., Smoot, James L., and White, Kevin D. 1992, A comparison of surface-grab and cross sectionally integrated stream-water-quality sampling methods, Water Environment Research, Washington, D.C., November/December 1992, vol. 64, no. 7, pp. 866-876.
Martin. Gary R. and White, Kevin D., 1991, Surface water-quality assessment of the Kentucky River Basin 1976-86: Influences, conditions, and relation to criteria: Proceedings of the Kentucky Water Resources Symposium, March 14-15, 1991, Abstract, 2 p.
Martin, Gary R., Smoot, James L., and White, Kevin D., 1989, A comparison of surface-grab and cross sectionally integrated stream sampling techniques: Proceedings of the Kentucky Water Resources Symposium, Ab

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Science and Products

Boy running on lawn under water sprinkler

Water Use - Ohio Kentucky Indiana

The USGS National Water-Use Information Program collects data about the quantities of water withdrawn for specific uses: public supply, domestic, industrial, mining, thermoelectric power, irrigation, livestock, and aquaculture. On a broader scale, we research how humans interact with the hydrologic cycle throuugh water withdrawal, water delivery, consumptive use, return flows, wastewater reuse...
By
Ohio-Kentucky-Indiana Water Science Center
Water Use - Ohio Kentucky Indiana

Water Use - Ohio Kentucky Indiana

The USGS National Water-Use Information Program collects data about the quantities of water withdrawn for specific uses: public supply, domestic, industrial, mining, thermoelectric power, irrigation, livestock, and aquaculture. On a broader scale, we research how humans interact with the hydrologic cycle throuugh water withdrawal, water delivery, consumptive use, return flows, wastewater reuse...
Learn More
Screenshot of the Indiana streamstats web site

Low-Flow Statistics for Indiana Streams

Indiana and Kentucky scientists have produced new low-flow statistics for Indiana streams, specifically for 7-day, 10-year low flow (7Q10); 30-day, 10-year low flow (30Q10); 1-day, 10-year low flow (1Q10); and harmonic mean streamflow. The low-flow statistics are critical for the state of Indiana to administer the National Pollutant Discharge Elimination System (NPDES) permit program, watershed...
By
Ohio-Kentucky-Indiana Water Science Center
Low-Flow Statistics for Indiana Streams

Low-Flow Statistics for Indiana Streams

Indiana and Kentucky scientists have produced new low-flow statistics for Indiana streams, specifically for 7-day, 10-year low flow (7Q10); 30-day, 10-year low flow (30Q10); 1-day, 10-year low flow (1Q10); and harmonic mean streamflow. The low-flow statistics are critical for the state of Indiana to administer the National Pollutant Discharge Elimination System (NPDES) permit program, watershed...
Learn More
Filter Total Items: 15

Data and knowledge gaps of a water bottling facility inventory and select water-use dataset, United States Data and knowledge gaps of a water bottling facility inventory and select water-use dataset, United States

In 2023, the U.S. Geological Survey developed a national inventory of water bottling facilities for the United States, including information about locations, water sources, water use, and a collection of other attributes. The purpose of the inventory was to provide information about water bottling facilities needed to assess and improve understanding of local-, regional-, and national...
Authors
Carol Luukkonen, Cheryl Buchwald, Gary Martin, Allegra Johnson Mckee
By
Water Resources Mission Area, Water Availability and Use Science Program, Upper Midwest Water Science Center

Estimating selected low-flow frequency statistics and harmonic-mean flows for ungaged, unregulated streams in Indiana Estimating selected low-flow frequency statistics and harmonic-mean flows for ungaged, unregulated streams in Indiana

Information on low-flow characteristics of streams is essential for the management of water resources. This report provides equations for estimating the 1-, 7-, and 30-day mean low flows for a recurrence interval of 10 years and the harmonic-mean flow at ungaged, unregulated stream sites in Indiana. These equations were developed using the low-flow statistics and basin characteristics...
Authors
Gary Martin, Kathleen Fowler, Leslie Arihood
By
Ohio-Kentucky-Indiana Water Science Center, StreamStats

Nitrate Trends in Minnesota Rivers Nitrate Trends in Minnesota Rivers

The objective of this study was to assess long-term trends (30 to 35 years) of flow-adjusted concentrations of nitrite+nitrate-N (hereinafter referred to as nitrate) in a way that would allow us to discern changing trends. Recognizing that these trends are commonly different from one river to another river and from one part of the state to another, our objective was to examine as many...
Authors
Dave Wall, Dave Christopherson, Dave Lorenz, Gary Martin

Methods for estimating selected low-flow frequency statistics for unregulated streams in Kentucky Methods for estimating selected low-flow frequency statistics for unregulated streams in Kentucky

This report provides estimates of, and presents methods for estimating, selected low-flow frequency statistics for unregulated streams in Kentucky including the 30-day mean low flows for recurrence intervals of 2 and 5 years (30Q2 and 30Q5) and the 7-day mean low flows for recurrence intervals of 5, 10, and 20 years (7Q2, 7Q10, and 7Q20). Estimates of these statistics are provided for...
Authors
Gary Martin, Leslie Arihood
By
Ohio-Kentucky-Indiana Water Science Center

Concentrations, and estimated loads and yields of total nitrogen and total phosphorus at selected water-quality monitoring network stations in Kentucky, 1979-2004 Concentrations, and estimated loads and yields of total nitrogen and total phosphorus at selected water-quality monitoring network stations in Kentucky, 1979-2004

To evaluate the State’s water quality, the Kentucky Division of Water collects data from a statewide network of primary ambient stream water-quality monitoring stations and flexible, rotating watershed-monitoring stations. This ambient stream water-quality monitoring network program is directed to assess the conditions of surface waters throughout Kentucky. Water samples were collected...
Authors
Angela Crain, Gary Martin
By
Ohio-Kentucky-Indiana Water Science Center

Trends in Surface-Water Quality at Selected Ambient-Monitoring Network Stations in Kentucky, 1979-2004 Trends in Surface-Water Quality at Selected Ambient-Monitoring Network Stations in Kentucky, 1979-2004

Increasingly complex water-management decisions require water-quality monitoring programs that provide data for multiple purposes, including trend analyses, to detect improvement or deterioration in water quality with time. Understanding surface-water-quality trends assists resource managers in identifying emerging water-quality concerns, planning remediation efforts, and evaluating the
Authors
Angela Crain, Gary Martin
By
Ohio-Kentucky-Indiana Water Science Center

Estimating the magnitude of peak flows for streams in Kentucky for selected recurrence intervals Estimating the magnitude of peak flows for streams in Kentucky for selected recurrence intervals

This report gives estimates of, and presents techniques for estimating, the magnitude of peak flows for streams in Kentucky for recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500 years. A flowchart in this report guides the user to the appropriate estimates and (or) estimating techniques for a site on a specific stream. Estimates of peak flows are given for 222 U.S. Geological...
Authors
Glenn Hodgkins, Gary Martin

Estimating mean annual streamflow of rural streams in Kentucky Estimating mean annual streamflow of rural streams in Kentucky

Mean annual streamflow ( Q a ), defined as the mean of the series of annual mean streamflow values, was determined for selected rural stream sites in Kentucky. Streamflow data for the available period of record through the 1999 water year (October 1, 1998-September 30, 1999) at 235 continuous-record streamflow-gaging stations with at least 5 years of record located in and adjacent to...
Authors
G. Martin

Hydrologic and water-quality characterization and modeling of the Chenoweth Run basin, Jefferson County, Kentucky Hydrologic and water-quality characterization and modeling of the Chenoweth Run basin, Jefferson County, Kentucky

No abstract available.
Authors
Gary Martin, Phillip Zarriello, Allison Shipp
By
Water Resources Mission Area, Ohio-Kentucky-Indiana Water Science Center, New England Water Science Center

Estimation of peak-discharge frequency of urban streams in Jefferson County, Kentucky Estimation of peak-discharge frequency of urban streams in Jefferson County, Kentucky

An investigation of flood-hydrograph characteristics for streams in urban Jefferson County, Kentucky, was made to obtain hydrologic information needed for waterresources management. Equations for estimating peak-discharge frequencies for ungaged streams in the county were developed by combining (1) long-term annual peakdischarge data and rainfall-runoff data collected from 1991 to 1995...
Authors
Gary Martin, Kevin Ruhl, Brian Moore, Martin Rose

Bridge-Scour Data Management System user's manual Bridge-Scour Data Management System user's manual

The Bridge-Scour Data Management System (BSDMS) supports preparation, compilation, and analysis of bridge-scour data. The BSDMS provides interactive storage, retrieval, selection, editing, and display of bridge-scour data sets. Bridge-scour data sets include more than 200 site and measurement attributes of the channel geometry, flow hydraulics, hydrology, sediment, geomorphic-setting...
Authors
Mark Landers, David Mueller, Gary Martin

Flow duration of Kentucky streams through 1990; historical and monthly flow characteristics, including the effects of reservoirs Flow duration of Kentucky streams through 1990; historical and monthly flow characteristics, including the effects of reservoirs

This report presents flow-duration tables and plots for selected streamflow sites in Kentucky with three or more years of continuous record through 1990. Flow duration describes the frequency with which given streamflows are equalled or exceeded. The flow-duration tables were computed using daily mean discharge values for the entire period specified and for each month of the period...
Authors
K.J. Ruhl, R.J. Burns, G. Martin, D.P. Allgeier

Non-USGS Publications**

Martin, Gary R., Fowler, Kathleen K., and Arihood, Leslie D., 2016, Methods for estimating selected low-flow statistics for ungaged, unregulated streams in Indiana, Indiana Water Monitoring Council Symposium, December 12, 2016
Martin, Gary R., 2014, Kentucky StreamStats water-resources web application: Implementation of selected low- and mean-flow estimating equations, Proceedings of the Kentucky Water Resources Annual Symposium, March 10, 2014, Abstract, 2p
Martin, Gary R. and Arihood, Leslie D., 2010, Methods for estimating low-flow frequencies for streams in Kentucky Proceedings of the Kentucky Water Resources Annual Symposium, March 22, 2010, Abstract, 2p
Martin, Gary R., Evans Dan W., and Odom, Kenneth R., 2006, Low-flow characteristics of streams in Kentucky, Proceedings of the Kentucky Water Resources Annual Symposium, March 2, 2006, Abstract, 2p
Martin, Gary R., 2001, Hydrologic modeling of the Chenoweth Run Basin, Jefferson County, Kentucky: Proceedings of the Kentucky Water Resources Annual Symposium, February 23, 2001, Abstract, 2 p.
Martin, Gary R. and Ruhl, Kevin J., 1998, Techniques for estimating peak-discharge frequency of urban streams in Jefferson County, Kentucky: Proceedings of the Kentucky Water Resources Annual Symposium, February 11, 1998, Abstract, 2 p.
Martin, Gary R., and Ruhl, Kevin J., 1993, Regionalization of harmonic-mean streamflows in Kentucky: Proceedings of the Kentucky Water Resources Symposium, December 16, 1993, Abstract, 1 p.
Martin, Gary R., Smoot, James L., and White, Kevin D. 1992, A comparison of surface-grab and cross sectionally integrated stream-water-quality sampling methods, Water Environment Research, Washington, D.C., November/December 1992, vol. 64, no. 7, pp. 866-876.
Martin. Gary R. and White, Kevin D., 1991, Surface water-quality assessment of the Kentucky River Basin 1976-86: Influences, conditions, and relation to criteria: Proceedings of the Kentucky Water Resources Symposium, March 14-15, 1991, Abstract, 2 p.
Martin, Gary R., Smoot, James L., and White, Kevin D., 1989, A comparison of surface-grab and cross sectionally integrated stream sampling techniques: Proceedings of the Kentucky Water Resources Symposium, Ab

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Was this page helpful?