Water Quality Sampling Programs in Rivers

by Graeme C. Dandy, Research Fellow; Centre for Environmental Studies, Univ. of Melbourne, Melbourne, Australia,
Stephen F. Moore, (M.ASCE), Assoc.; Resource Assocs., Lafayette, Calif.,

Serial Information: Journal of the Environmental Engineering Division, 1979, Vol. 105, Issue 4, Pg. 695-712

Document Type: Journal Paper


A central decision in the collection of water quality data from a river is the choice of the locations and frequencies of sampling. This paper proposes a method for the selection of these design variables, for given water quality constituents, based on the use of a stochastic model of the river. The design method is demonstrated for the coupled constituents of BOD and DO in the Shenango-Beaver River, Pennsylvania. Cost-effective sampling designs are identified for two principal objectives: (1) Detection of violations of in-stream water quality standards; and (2) assessment of the present state of water quality in the river. The results indicate that data collection efforts for the detection of in-stream violations should emphasize intensive sampling at a few critical locations.

Subject Headings: Water quality | Hydraulic design | Water sampling | Rivers and streams | Data collection | Hydrologic models | High-rise buildings | Quality control | Pennsylvania | United States

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