Memorial Day ceremonies will take place Monday in Waterloo, Hecker, Columbia, Valmeyer and Dupo.  The program in Valmeyer begins at 10 a.m. outside the Post 901 American Legion Hall.  In Hecker, the service begins at 10 a.m. on the St. Augustine Cemetery grounds.  The program in Waterloo begins at 11 a.m. on the Monroe County…