Water and Energy go hand in hand, and both are an integral part of sustainable development.
Apart from the aspect of conservation, there is the issue of sustainable water use, and... there is always the issue of water quality. Besides unintended contaminants, there are such issues as lead in pipes, chlorination, and fluoridation, and overall water quality.
The key to healthy drinking water is to take out the bad, and leave in the good (minerals/electrolytes), and beyond that to have a Relative Hydrogen Score (rH) below 28. Here are the tools to do it:
Some solutions I have found:
Energy Procurement, Planning, and Renewable Retrofits
Planning, Analysis, Economics, Negotiation, Management