I've been wondering the same ...

I've been wondering the same thing. As a water professional, it's a bit embarrassing that I do not have an objective measure of my own water footprint. It's a classic example of information asymmetry: there just isn't enough information available to consumers about the conditions under which the goods/services we purchase are produced. Producers have no incentive to voluntarily disclose it, either because there is no regulation mandating full disclosure or there is no economic gain to be had by disclosing information like this. As much as we try to be conscientious consumers, there's not a lot of ways to obtain this information directly from companies we buy from. I dream of developing a toolkit for consumers to help them gain access to information about the life-cycle impacts (including water and carbon footprints) of their purchases, which information will add another criterion to their consumption behavior other than just quality and price.