You might have seen this over at Ald. Sawyer's 6th Ward Chicago fb page. The grid system is coming to portions of Wards 6, 9, 15, 16, 17, & 18 according to the map you see in the graphic below. Trash pick-up will not be done according to wards. Of course if you expect trash pick-up on a certain day there probably won't be a change. For example if you normal expect pick-up on a Tuesday there will be no change to that.