USGS Open-File Report 2008-1204
Prepared in cooperation with U.S. Fish and Wildlife Service (Patuxent Research Refuge)
U.S. Department of Agriculture (Henry A. Wallace Beltsville Agricultural Research Center)
National Park Service (Chesapeake and Ohio Historical Park, Prince William Forest Park, Rock Creek Park, Shenandoah National Park)
By Karen C. Rice
U.S. Geological Survey Open-File Report 2008-1204, 12 pages (Published online, July 2008)
This report is available online in PDF format: OFR 2008-1204 () (520 kB)
Data on the chemical composition of water were collected at least once from 47 amphibian research sites in Maryland, Washington, D.C., and Virginia, from 2005 through 2007. One hundred twenty-five water samples were collected from vernal pools and streams and analyzed as part of long-term monitoring projects of the U.S. Geological Survey Amphibian Research and Monitoring Initiative in the Northeast Region. Field measurements of water temperature, specific conductance, and pH were made. Laboratory analyses of the water samples included acid-neutralizing capacity, total Kjeldahl nitrogen (ammonium plus organic nitrogen), nitrite plus nitrate, total nitrogen, and total phosphorus concentrations. Field and laboratory analytical results of water samples and quality-assurance data are presented.
Purpose and Scope
Description of Data-Collection Sites
Collection and Analysis of Water-Quality Samples
Field Data-Collection Methods
Laboratory Analytical Methods
Quality Assurance and Quality Control
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Suggested citation: Rice, K.C., 2008, Water-quality data at amphibian research sites in Maryland, Washington, D.C., and Virginia, 2005–2007: U.S. Geological Survey Open-File Report 2008–1204, 12 p.
For more information, please contact Karen C. Rice.