City of Lasalle issued the following announcement on June 6.
The City of La Salle will flush hydrants beginning on Monday, June 8th through Thursday, June 11th. Monday, June 8th - East of Int. 39. Tuesday, June 9th - Canal St. - 9th Street, Wednesday, June 10th - 9th Street to O'Conor, Thursday, June 11th - O'Conor to North of O'Conor. Residents could experience low water pressure and/or rusty water. Residents are urged to let their water run until it is clear.
Original source can be found here.
Source: City of Lasalle