More ways you can save on water :
Redesign your Sprinkler system and specify more efficient components
Install Subsurface Irrigation zones to nullify overspray and evaporation.
Install Rain, Wind, Freeze Sensors - to shut off your sprinkler system during a storm.
Install a state-of-the-art controller clock with at least 3 programs to water more often with less durations; optimizing the lawns call for water in a timely fashion.
Install a Lawn and Plant Fertilizing System - directly to your sprinkler system to provide sod and plants with a constant source of nutrition and use less water.
Amend your soil with organic compost - create a sponge out of your subsoil, so water is soaked in and stays, unlike the clay in poorly prepared lawns that does not hold water. So many lawns were not prepared with enough soil amendments and the water runs right past the roots of the sod and eventually in to the street.
Add new age polymers to your lawn that will absorb and hold water. (The same polymers used in diapers) The grass roots will surround and attach to these polymers and save you water.
Reduce your lawn areas - replace your lawn areas with gardens whose plants use much less water.
Remove your lawn area - replace it with wild flowers, ground covers, paths, patios, decks or perennial gardens