Iberville Parish issues boil water advisory Iberville Parish issues boil water advisory Westside bureau Nov. 20, 2012 Comments PLAQUEMINE — The Iberville Parish Utility Department issued a boil alert advisory Friday for Iberville Parish Water District No. 3 customers located on La. 75 between Jack Miller’s Landing and La. 404, including all intersecting streets. Department Director Brian Berthelot said the advisory was issued after a leak was discovered in a water main. The boil advisory will be lifted when state Department of Health and Hospitals tests indicate the water supply is not contaminated and is safe for human consumption, he said. Berthelot said parish crews would collect water samples on Saturday, and results from testing may be known on Sunday.