It would definitely need a ...
Published by Sean Furey, Water & Sanitation Specialist at Skat Consulting
It would definitely need a mix of physical and social indicators. Cleaning up the river - physically, chemically and biologically - could be done through tough regulatory - authoritarian - measures, but longer term this could be counter-productive if this leads to such resentment, push back and resentment from riparian land owners/occupiers that such enforcement has to be abandoned. Therefore restoring civic pride in a river has to be central - through festivals, cultural events, high quality public spaces. Perhaps another indicator is around solid waste management - targetting the reduction of intentional dumping of household and commercial waste through incentivising the use of better/more convenient alternatives.