Record Display for the EPA National Library Catalog


Main Title Lake and Stream Indicators for U.S. EPA's Environmental Monitoring and Assessment Program.
Author Hughes, R. M. ; Whittier, T. R. ; Thiele, S. A. ; Pollard, J. E. ; Peck, D. V. ;
CORP Author Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR. ;Lockheed Engineering and Sciences Co., Inc., Las Vegas, NV.
Publisher 24 Jan 91
Year Published 1991
Report Number EPA/600/D-91/095;
Stock Number PB91-191080
Additional Subjects Water pollution effects ; Biological indicators ; Lakes ; Streams ; Aquatic ecosystems ; US EPA ; Regional analysis ; Spatial distribution ; Site surveys ; Biological stress ; Ecosystems ; Habitats ; Diatoms ; Zooplankton ; Benthos ; Data processing ; Statistical analysis ; Water quality data ; Surface waters ; Fishes ; Environmental Monitoring and Assessment Program
Library Call Number Additional Info Location Last
NTIS  PB91-191080 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 56p
The paper summarizes the indicators proposed for a pilot study by the U. S. Environmental Protection Agency's (EPA) Environmental Monitoring and Assessment Program for lakes and streams (EMAP-LS). An additional lake and stream monitoring program is needed because current programs do not provide regional or national estimates of ecological condition or trends with known levels of confidence. Because national and regional monitoring must necessarily focus on spatial issues, the authors explain why and how they concentrate their sampling at particular index periods and in particular index locations. They provide 10 criteria for selecting response indicators and outline the 18 indicators selected and being developed for lakes and streams. Finally, the authors discuss how they propose to determine waterbody impairment through use of regional reference sites, regional experts, historical data, models, and empirical distributions of indicator values.