Here is a 7 household apartment in Cooke town, which is east-ish Bangalore and close to the Ulsoor lake. The apartment had a well in its site, but still did not build infrastructure to use the well water. Now Mr George discovers that the water is clean enough at least for all non-potable purposes, and is trying to get the apartment to invest for the same. This well water to be used needs to be pumped up 3 floors from at most 10 feet depth. Compare this with water coming from the river Cauvery (Bangalore's main source) which is pumped over a gross head of 500m and needs an institution to supply.
Can the Shallow Aquifer - from which openwells get their water - of Bangalore be managed as an important source and people are incentivised to use it and maintain the open wells? Is this more economic? In combination with investments in recharge, is this also more ecological?