Rayne water plant undergoing "much needed" upgrade Water is safe, no boil advisories Courtesy of MGN Online and last updated 2021-03-05 21:31:18-05 RAYNE, La. â The City of Rayne's water treatment plant is undergoing a system upgrade, which is leading to discoloration in the water that some residents are seeing, according to officials. After receiving tips regarding the water quality in the city, KATC reached out to Mike Judice, the Water & Waste Superintendent for the City of Rayne, who said that the 60-year-old system is undergoing a $2.3 million "much needed" upgrade. Part of the improvements is the replacement of the water treatment clarifier, which acts as a large filter where the water is treated by adding a polymer and lime. The process removes the iron and manganese from the water, Judice said.