City of Loves Park issued the following announcement on March 26.
Rock River Disposal will be conducting a Spring clean-up leaf vacuuming. The entire City of Loves Park will be vacuumed, for one week only, during the week of April 15th through April 19th. To make sure that your leaves are vacuumed, you must have any additional leaves placed at curb no later than April 15th. More details will be posted as they become available.
Original source can be found here.