I've talked in the past about the need for a simple, cheap water quality tester for consumers. (The kits on the market now are neither user-friendly nor "cheap.")
It occurred to me that the consumer market often follows the business market, where early adopters are willing to pay more and their custom drives innovation.
It also occurred to me that businesses (water agencies) need to monitor water quality. Although they already do, their monitoring (as far as I know) takes place at the treatment plant, and at infrequent intervals.
It seems like they would want to have real-time water quality monitoring at important points in their distribution system. To make that goal a reality, they will need fairly cheap monitors that test for many things.
If such a market develops, it would benefit water customers in the short run. In the long run, it would promote the consumer technology that I'd like to see.
Bottom Line: We need better water quality information, and there's a market -- and development channel -- for it.