Amarillo residents with higher-than-normal water utility bills might have been overcharged. When Jana Cates opened her utility bill this month, she knew right away that something was wrong. According to the city, the Quail Creek resident had used 161,000 gallons of water in the last billing cycle. Because the city charges customers for water based on how much they used — and Cates was up there in the highest tier — she was charged more than $5 per 1,000 gallons. Syncronex: Metered read more