As California’s severe drought moves into a fourth year, state and local water agencies are working on something called “allocation-based rate structures,” a kind of precursor to water rationing that’s all the rage in Sacramento and in some areas such as Santa Cruz, Irvine and Santa Monica.
Here’s how it works: Your local water company, special district or city assigns you and your household a number in gallons — a daily water allocation. Usually, one number applies to maximum indoor water use, i.e. showers, kitchen and bathroom faucets, dishwashers, clothes washers, etc., and an extra allocation is assigned for outdoor use such as lawn irrigation.
Using census records, aerial photography and satellite imagery, an agency can determine a property’s efficient water usage.