the City of Grand Prairie has issued a warning to residents living north of 20 residents are advised to avoid using City drinking water due to contamination a foaming agent was detected in the area's water supply on Tuesday evening City officials are investigating the affected area actively residents should only use water for flushing toilets until further notice Grand Prairie ISD has not yet made a decision regarding classes tomorrow bottle water distribution stations are being set up for residents stay tuned for updates from the city regarding the water situation please remain informed Through official City Communications this contamination affects many households in the area