Potable water is defined by water used for drinking or food preparation. For irrigation purposes it also refers to water from wells, ponds or lakes. Below is the watering days chart for Pasco County Potable Water for unincorporated residents. This means the residents that receive water bill from Pasco County Utilities customers only. This applies to Pasco residents that live in New Port Richey, Hudson, Trinity, Wesley Chapel, Odessa, Elfters, Land O’ Lakes, Holiday and Port Richey.