Review of WQI literature
Define purpose of WQI
Propose list of
parameters/metrics
Transform values to a sub-index
scale
Define descriptors for range of subindex values
Select aggregation equation
Develop Excel spreadsheet for
scoring
Test WQI with existing and
hypothetical data
Final WQI
Develop a WQI
Fig. 3.3 Flowchart of
progressive tasks to be
completed for development
of a WQI for surface water
3 Surface Water Quality and Analysis
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