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AWWA QTC97046
- Are Total Recoverable Analyses Necessary for Monitoring Water Quality in Recharge Studies?
- Conference Proceeding by American Water Works Association, 01/01/1997
- Publisher: AWWA
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During 1995 and 1996, water quality samples were collected from the Little Arkansas River and adjoining Equus Beds aquifer to determine if information on total recoverable concentrations of chemical constituents is necessary to monitor potential effects of surface water recharged through infiltration basins to the aquifer. Fourteen samples were collected from two surface water sites on the Little Arkansas River and 27 samples were collected from 16 monitoring wells completed in the aquifer. Median concentrations, Spearman-rho correlation coefficients, and Wilcoxen signed-rank tests were used to compare total recoverable to filtered concentrations for selected constituents. Results of the study indicate that it may be more appropriate and cost effective to analyze samples for filtered rather than total recoverable concentrations in order to monitor water quality in recharge studies where sediment is eliminated from surface water before it is recharged.
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