Wayne Bossert is amused at the wailing emanating from California about the notion that someone should start keeping track of the water they pump from the ground:

For the Californians in the audience, I’d like to offer that Kansas has been monitoring water use since the mid 1970s, took significant strides to improve that monitoring in the late 1980s, and began metering all non-domestic wells in selected areas in the late 1990s.  Today, Kansas has some of the best (most complete and accurate) water use reporting – especially for irrigation and municipal water use – in the country.