Say start with100 MGD >50 MGD

Current use: 60% of water supply is residential. 2/3 of residential is used outside=approximately 40 MGD of original amount
Get rid of outdoor use.

Require dual-flush toilets

Implement IPR to reclaim an additional 10 MGD a day (save energy by doing it in a distributed way)

Ordnances (sticks) and incentives (carrots) to transform landscapes for water efficiency

Make it illegal to wash your own car and driveway. Carwashes that reclaim water only.

Require Gray-water installs for all residents and other viable

Eliminate public artificially maintained landscape and allow native vegetation to replace (has to be sustained by local rain supply)

Require all businesses and commercial to maximize efficiency

Multi-million public education program, constant PSAs talking about water conservation (i.e. turn off water while brushing your teeth) to change attitude toward water
High tech water sensors

Do water reclamation at highest points and sell to next community downhill.

Reduce water demands at industrial and commercial. No more pass through cooling

Increase price of water, tiered rates