A land steward's take on a piece of household orthodoxy that doesn't quite hold up. I was rinsing out a milk jug at my kitchen sink the other day, hot water running, sloshing it around to break up the film of dried milk along the inside, and I caught myself doing the math. We're in the third year of on-and-off drought across most of Central Texas. The Edwards Aquifer just dropped from Stage 4 to Stage 3 restrictions a week ago, and only because spring rains pulled J-17 back a