The Rainwater Harvesting Rebate Program offers rebates of $0.25 per gallon of rainwater storage installed up to the estimated peak monthly water usage for a site. Applicants must own a home or business with City of Santa Rosa water service, agree to inspections, obtain permits, install a backflow device, and a minimum of 100 gallons of storage. To receive a rebate, applicants must schedule inspections, obtain permits, submit receipts after installation, and rebates will be processed within 4-6 weeks.