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)

Water-Quality Data at Amphibian Research Sites in Maryland, Washington, D.C., and Virginia, 20052007

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 (Opens the PDF file in a new window. ) (520 kB)

Cover thumbnailData 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.

CONTENTS

Abstract

Introduction

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

Acknowledgments

References Cited

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Suggested citation: Rice, K.C., 2008, Water-quality data at amphibian research sites in Maryland, Washington, D.C., and Virginia, 20052007: U.S. Geological Survey Open-File Report 20081204, 12 p.

For more information, please contact Karen C. Rice.

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