Mary L Giorgino
Mary Giorgino is Scientist Emeritus at the South Atlantic Water Science Center.
Science and Products
Filter Total Items: 15
Occurrence and distribution of mercury in streams and reservoirs in the Triangle Area of North Carolina, July 2007–June 2009 Occurrence and distribution of mercury in streams and reservoirs in the Triangle Area of North Carolina, July 2007–June 2009
During the time period 2001–2006, the U.S. Geological Survey reported mercury-concentration measurements that exceeded the North Carolina water-quality criterion (NCWQC) of 0.012 microgram per liter for total recoverable mercury in streams and reservoirs across the Triangle Area of North Carolina. Mercury data were sparse, however, generally consisting of only one or two water samples...
Authors
Anna M. McKee, Sharon Fitzgerald, Mary J. Giorgino
Trends in water quality of selected streams and reservoirs used for water supply in the Triangle area of North Carolina, 1989–2013 Trends in water quality of selected streams and reservoirs used for water supply in the Triangle area of North Carolina, 1989–2013
As the population of the Triangle area in central North Carolina increases, the demand for good quality drinking water from streams and lakes within the upper Neuse and upper Cape Fear River Basins also increases. The Triangle area includes Raleigh, Cary, Research Triangle Park, Durham, Chapel Hill, and the surrounding communities. The U.S. Geological Survey examined temporal trends in...
Authors
Mary J. Giorgino, Thomas F. Cuffney, Stephen L. Harden, Toby D. Feaster
Quality of surface-water supplies in the Triangle area of North Carolina, water year 2009 Quality of surface-water supplies in the Triangle area of North Carolina, water year 2009
Surface-water supplies are important sources of drinking water for residents in the Triangle area of North Carolina, which is located within the upper Cape Fear and Neuse River Basins. Since 1988, the U.S. Geological Survey and a consortium of governments have tracked water-quality conditions and trends in several of the area’s water-supply lakes and streams. This report summarizes data...
Authors
C. A. Pfeifle, M. J. Giorgino, R. B. Rasmussen
Use of stable isotopes of nitrogen and water to identify sources of nitrogen in three urban creeks of Durham, North Carolina, 2011-12 Use of stable isotopes of nitrogen and water to identify sources of nitrogen in three urban creeks of Durham, North Carolina, 2011-12
A preliminary assessment of nitrate sources was conducted in three creeks that feed nutrient impaired Falls and Jordan Lakes in the vicinity of Durham County, North Carolina, from July 2011 to June 2012. Cabin Branch, Ellerbe Creek, and Third Fork Creek were sampled monthly to determine if sources of nitrate in surface water could be identified on the basis of their stable isotopic...
Authors
Kristen Bukowski McSwain, Megan B. Young, Mary L. Giorgino
Quality of surface-water supplies in the Triangle area of North Carolina, water year 2008 Quality of surface-water supplies in the Triangle area of North Carolina, water year 2008
Surface-water supplies are important sources of drinking water for residents in the Triangle area of North Carolina, which is located within the upper Cape Fear and Neuse River Basins. Since 1988, the U.S. Geological Survey and a consortium of governments have tracked water-quality conditions and trends in several of the area's water-supply lakes and streams. This report summarizes data...
Authors
M. J. Giorgino, R.B. Rasmussen, C.A. Pfeifle
Water-Quality Characteristics of Ledge Creek and Holman Creek Upstream from Lake Rogers, Granville County, North Carolina, 2005 and 2008 Water-Quality Characteristics of Ledge Creek and Holman Creek Upstream from Lake Rogers, Granville County, North Carolina, 2005 and 2008
Water-quality and hydrologic data were collected during 2005 and 2008 to characterize potential source areas of nutrients and sediment within the Ledge and Holman Creek watersheds upstream from Lake Rogers in Granville County, North Carolina. Eight monitoring locations were established in all--five in Holman Creek and three in Ledge Creek--for collecting discharge and water-quality data...
Authors
Stephen L. Harden, Mary J. Giorgino
Occurrence of Organic Wastewater Compounds in Selected Surface-Water Supplies, Triangle Area of North Carolina, 2002-2005 Occurrence of Organic Wastewater Compounds in Selected Surface-Water Supplies, Triangle Area of North Carolina, 2002-2005
Selected organic wastewater compounds, such as household, industrial, and agricultural-use compounds, sterols, pharmaceuticals, and antibiotics, were measured at eight sites classified as drinking-water supplies in the Triangle Area of North Carolina. From October 2002 through July 2005, seven of the sites were sampled twice, and one site was sampled 28 times, for a total of 42 sets of
Authors
M. J. Giorgino, R.B. Rasmussen, C.M . Pfeifle
Susceptibility index to surface contamination for the Little Cross Creek watershed, Cumberland County, North Carolina Susceptibility index to surface contamination for the Little Cross Creek watershed, Cumberland County, North Carolina
An index of surface-water contamination potential was constructed for the Little Cross Creek Basin, a 9.7-square-mile, water-supply watershed in Cumberland County, North Carolina. The index was developed because previous water-quality investigations raised concerns regarding inputs of bacteria, suspended sediment, and phosphorus from nonpoint sources in the watershed. A geographic...
Authors
M. J. Giorgino, Silvia Terziotti
Mountain Island Lake, North Carolina: Analysis of ambient conditions and simulation of hydrodynamics, constituent transport, and water-quality characteristics, 1996–97 Mountain Island Lake, North Carolina: Analysis of ambient conditions and simulation of hydrodynamics, constituent transport, and water-quality characteristics, 1996–97
Mountain Island Lake is an impoundment of the Catawba River in North Carolina and supplies drinking water to more than 600,000 people in Charlotte, Gastonia, Mount Holly, and several other communities. The U.S. Geological Survey, in cooperation with the Charlotte-Mecklenburg Utilities, conducted an investigation of the reservoir to characterize hydrologic and water-quality conditions and...
Authors
Jerad D. Bales, Kathleen M. Sarver, Mary J. Giorgino
Estimated depth to water, North Carolina Estimated depth to water, North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to...
Authors
Jo Leslie Eimers, Silvia Terziotti, Mary J. Giorgino
Hydrology and water quality of Little Cross Creek, Cumberland County, North Carolina, 1996-98 Hydrology and water quality of Little Cross Creek, Cumberland County, North Carolina, 1996-98
Little Cross Creek is a small stream located in Cumberland County, North Carolina, in the Sand Hills area of the Coastal Plain Province. From August 1996 through August 1998, the U.S. Geological Survey collected streamflow, water-quality, and time-of-travel data at 10 sites in Little Cross Creek Basin to assess ambient conditions and compute loads of suspended sediment, total nitrogen...
Authors
Mary J. Giorgino, Terry L. Middleton
Bathymetry of Bonnie Doone Lake, Kornbow Lake, Mintz Pond, and Glenville Lake, Cumberland County, North Carolina, 1996-98 Bathymetry of Bonnie Doone Lake, Kornbow Lake, Mintz Pond, and Glenville Lake, Cumberland County, North Carolina, 1996-98
Bathymetric surveys were conducted at four water-supply impoundments of Little Cross Creek in Cumberland County, North Carolina. The surveys were conducted in April 1996 at Mintz Pond and Glenville Lake, and in January 1998 at Bonnie Doone Lake and Kornbow Lake. The resulting bathymetric maps are the first to cover the entire range in depth for these reservoirs and provide a framework...
Authors
M. J. Giorgino, R.E. Strain
Triangle Area, NC, Water Supply Monitoring
The Research Triangle area, located within the upper Cape Fear and Neuse River basins, is one of the most rapidly developing areas in the Nation. Growth has increased demand for water from public suppliers, the majority of which draw water from streams and lakes in the region. Growth also brings the threat of greater loads of contaminants and new contaminant sources that, if not properly managed...
Stratification and Water Quality of Jordan Lake, North Carolina
The New Hope arm of Jordan Lake, located in Chatham County, North Carolina, serves as a drinking-water supply for the Towns of Cary, Apex, and Morrisville. The reservoir is listed as impaired due to nutrient over-enrichment and occasionally experiences algal blooms and fish kills. In order to evaluate effects of installing a vertical-mixing system on the New Hope arm of Jordan Lake, the U.S...
Science and Products
Filter Total Items: 15
Occurrence and distribution of mercury in streams and reservoirs in the Triangle Area of North Carolina, July 2007–June 2009 Occurrence and distribution of mercury in streams and reservoirs in the Triangle Area of North Carolina, July 2007–June 2009
During the time period 2001–2006, the U.S. Geological Survey reported mercury-concentration measurements that exceeded the North Carolina water-quality criterion (NCWQC) of 0.012 microgram per liter for total recoverable mercury in streams and reservoirs across the Triangle Area of North Carolina. Mercury data were sparse, however, generally consisting of only one or two water samples...
Authors
Anna M. McKee, Sharon Fitzgerald, Mary J. Giorgino
Trends in water quality of selected streams and reservoirs used for water supply in the Triangle area of North Carolina, 1989–2013 Trends in water quality of selected streams and reservoirs used for water supply in the Triangle area of North Carolina, 1989–2013
As the population of the Triangle area in central North Carolina increases, the demand for good quality drinking water from streams and lakes within the upper Neuse and upper Cape Fear River Basins also increases. The Triangle area includes Raleigh, Cary, Research Triangle Park, Durham, Chapel Hill, and the surrounding communities. The U.S. Geological Survey examined temporal trends in...
Authors
Mary J. Giorgino, Thomas F. Cuffney, Stephen L. Harden, Toby D. Feaster
Quality of surface-water supplies in the Triangle area of North Carolina, water year 2009 Quality of surface-water supplies in the Triangle area of North Carolina, water year 2009
Surface-water supplies are important sources of drinking water for residents in the Triangle area of North Carolina, which is located within the upper Cape Fear and Neuse River Basins. Since 1988, the U.S. Geological Survey and a consortium of governments have tracked water-quality conditions and trends in several of the area’s water-supply lakes and streams. This report summarizes data...
Authors
C. A. Pfeifle, M. J. Giorgino, R. B. Rasmussen
Use of stable isotopes of nitrogen and water to identify sources of nitrogen in three urban creeks of Durham, North Carolina, 2011-12 Use of stable isotopes of nitrogen and water to identify sources of nitrogen in three urban creeks of Durham, North Carolina, 2011-12
A preliminary assessment of nitrate sources was conducted in three creeks that feed nutrient impaired Falls and Jordan Lakes in the vicinity of Durham County, North Carolina, from July 2011 to June 2012. Cabin Branch, Ellerbe Creek, and Third Fork Creek were sampled monthly to determine if sources of nitrate in surface water could be identified on the basis of their stable isotopic...
Authors
Kristen Bukowski McSwain, Megan B. Young, Mary L. Giorgino
Quality of surface-water supplies in the Triangle area of North Carolina, water year 2008 Quality of surface-water supplies in the Triangle area of North Carolina, water year 2008
Surface-water supplies are important sources of drinking water for residents in the Triangle area of North Carolina, which is located within the upper Cape Fear and Neuse River Basins. Since 1988, the U.S. Geological Survey and a consortium of governments have tracked water-quality conditions and trends in several of the area's water-supply lakes and streams. This report summarizes data...
Authors
M. J. Giorgino, R.B. Rasmussen, C.A. Pfeifle
Water-Quality Characteristics of Ledge Creek and Holman Creek Upstream from Lake Rogers, Granville County, North Carolina, 2005 and 2008 Water-Quality Characteristics of Ledge Creek and Holman Creek Upstream from Lake Rogers, Granville County, North Carolina, 2005 and 2008
Water-quality and hydrologic data were collected during 2005 and 2008 to characterize potential source areas of nutrients and sediment within the Ledge and Holman Creek watersheds upstream from Lake Rogers in Granville County, North Carolina. Eight monitoring locations were established in all--five in Holman Creek and three in Ledge Creek--for collecting discharge and water-quality data...
Authors
Stephen L. Harden, Mary J. Giorgino
Occurrence of Organic Wastewater Compounds in Selected Surface-Water Supplies, Triangle Area of North Carolina, 2002-2005 Occurrence of Organic Wastewater Compounds in Selected Surface-Water Supplies, Triangle Area of North Carolina, 2002-2005
Selected organic wastewater compounds, such as household, industrial, and agricultural-use compounds, sterols, pharmaceuticals, and antibiotics, were measured at eight sites classified as drinking-water supplies in the Triangle Area of North Carolina. From October 2002 through July 2005, seven of the sites were sampled twice, and one site was sampled 28 times, for a total of 42 sets of
Authors
M. J. Giorgino, R.B. Rasmussen, C.M . Pfeifle
Susceptibility index to surface contamination for the Little Cross Creek watershed, Cumberland County, North Carolina Susceptibility index to surface contamination for the Little Cross Creek watershed, Cumberland County, North Carolina
An index of surface-water contamination potential was constructed for the Little Cross Creek Basin, a 9.7-square-mile, water-supply watershed in Cumberland County, North Carolina. The index was developed because previous water-quality investigations raised concerns regarding inputs of bacteria, suspended sediment, and phosphorus from nonpoint sources in the watershed. A geographic...
Authors
M. J. Giorgino, Silvia Terziotti
Mountain Island Lake, North Carolina: Analysis of ambient conditions and simulation of hydrodynamics, constituent transport, and water-quality characteristics, 1996–97 Mountain Island Lake, North Carolina: Analysis of ambient conditions and simulation of hydrodynamics, constituent transport, and water-quality characteristics, 1996–97
Mountain Island Lake is an impoundment of the Catawba River in North Carolina and supplies drinking water to more than 600,000 people in Charlotte, Gastonia, Mount Holly, and several other communities. The U.S. Geological Survey, in cooperation with the Charlotte-Mecklenburg Utilities, conducted an investigation of the reservoir to characterize hydrologic and water-quality conditions and...
Authors
Jerad D. Bales, Kathleen M. Sarver, Mary J. Giorgino
Estimated depth to water, North Carolina Estimated depth to water, North Carolina
This web site contains the Federal Geographic Data Committee-compliant metadata (documentation) for digital data produced for the North Carolina, Department of Environment and Natural Resources, Public Water Supply Section, Source Water Assessment Program. The metadata are for 11 individual Geographic Information System data sets. An overlay and indexing method was used with the data to...
Authors
Jo Leslie Eimers, Silvia Terziotti, Mary J. Giorgino
Hydrology and water quality of Little Cross Creek, Cumberland County, North Carolina, 1996-98 Hydrology and water quality of Little Cross Creek, Cumberland County, North Carolina, 1996-98
Little Cross Creek is a small stream located in Cumberland County, North Carolina, in the Sand Hills area of the Coastal Plain Province. From August 1996 through August 1998, the U.S. Geological Survey collected streamflow, water-quality, and time-of-travel data at 10 sites in Little Cross Creek Basin to assess ambient conditions and compute loads of suspended sediment, total nitrogen...
Authors
Mary J. Giorgino, Terry L. Middleton
Bathymetry of Bonnie Doone Lake, Kornbow Lake, Mintz Pond, and Glenville Lake, Cumberland County, North Carolina, 1996-98 Bathymetry of Bonnie Doone Lake, Kornbow Lake, Mintz Pond, and Glenville Lake, Cumberland County, North Carolina, 1996-98
Bathymetric surveys were conducted at four water-supply impoundments of Little Cross Creek in Cumberland County, North Carolina. The surveys were conducted in April 1996 at Mintz Pond and Glenville Lake, and in January 1998 at Bonnie Doone Lake and Kornbow Lake. The resulting bathymetric maps are the first to cover the entire range in depth for these reservoirs and provide a framework...
Authors
M. J. Giorgino, R.E. Strain
Triangle Area, NC, Water Supply Monitoring
The Research Triangle area, located within the upper Cape Fear and Neuse River basins, is one of the most rapidly developing areas in the Nation. Growth has increased demand for water from public suppliers, the majority of which draw water from streams and lakes in the region. Growth also brings the threat of greater loads of contaminants and new contaminant sources that, if not properly managed...
Stratification and Water Quality of Jordan Lake, North Carolina
The New Hope arm of Jordan Lake, located in Chatham County, North Carolina, serves as a drinking-water supply for the Towns of Cary, Apex, and Morrisville. The reservoir is listed as impaired due to nutrient over-enrichment and occasionally experiences algal blooms and fish kills. In order to evaluate effects of installing a vertical-mixing system on the New Hope arm of Jordan Lake, the U.S...