Plastic "coroplast" signs are not accepted in Mesa's blue recycle barrel. A drop-off site has been set up to allow Mesa residents to recycle these signs. Residents may stop by the Center Street Facility, 2412 N. Center St., Monday-Thursday 7 a.m.-3:30 p.m. Residents are asked to remove all wooden and metal stakes before placing the signs in the specially marked container which is located near the front entrance gate. For more information, visit mesarecycles.org or call City of