Main Title |
Determination of the Optimal Sampling Strategy for Assessing Open Lake Water Quality and Tracking Trends in the Western Basin of Lake Erie. |
Author |
Fay, L. A. ;
Rathke, D. E. ;
|
CORP Author |
Ohio State Univ., Columbus. Center for Lake Erie Area Research.;Environmental Protection Agency, Chicago, IL. Great Lakes National Program Office. |
Year Published |
1987 |
Report Number |
CLEAR/TR-305; EPA-R-005815; |
Stock Number |
PB88-230602 |
Additional Subjects |
Water quality ;
Sampling ;
Lake Erie ;
Statistical quality control ;
Water pollution ;
Trends ;
Design criteria ;
Geologic basins ;
Statistical data ;
Tables(Data) ;
Environmental monitoring
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB88-230602 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
127p |
Abstract |
The project was undertaken to determine an offshore region in the western basin of Lake Erie using the statistical technique of clustering. The region when sampled during surveillance/monitoring programs would provide information on annual open lake water quality and data for long term trend analysis. Defining a representative offshore region in the western basin was more complex than for the other basins due to the shallowness of the western basin, resulting in extensive sediment/water column interactions, particularly during storm activity. The initial phase of the program was devoted to an extensive inventory of the STORET data base to determine the variables having the most consistent quality and quantity for utilization in multi-variable clustering. Five variables were selected for the multi-variable clustering routine: total phosphorus, total dissolved phosphorus, turbidity, chlorophyll and chloride. The resulting offshore representative region was then sub-clustered to determine the number of stations (N=5) needed during future sampling programs. The minimum number of surveys needed annually is seven. |