Smart water meters record water consumption only. Residential customers are billed for wastewater only up to the first 10,000 gallons of water use. For use less than 10,000 gallons of water, the bill is computed using a charge per 1,000 gallons of water used. Commercial customers are billed for both water and wastewater for all water used inside the facility. This is because commercial customers are required to have separate water meters for their exterior landscaping. Commercial irrigation accounts do not pay a wastewater charge because the water does not enter the wastewater system.