Because water can be seen as a natural and public resource,public-private partnerships are just naturally the way to go.The public side takes care of most community concerns and the the private side takes care of the enterprise part of the operation.Without both sides of the equation water distribution efforts are bound to fail.
If you have an abundance of free water on your property and you would like to sell it, you should have the right to do so. Even if some people think you shouldn't. Partnering with the local government would be one way to monetize the water source. Bottling water would be another way to monetize the water source.