Waste Connections Inc. , an integrated solid waste services company headquartered in The Woodlands, Texas, has announced that it has completed the acquisition of Rock River Environmental Services Inc. Based in Rockford, Illinois, Rock River Environmental Services is an integrated provider of solid waste collection, recycling, transfer and disposal services, with total annual revenue of approximately $75 million. The acquired operations service 19 counties in central and northern Illinois and include five collection operations, two landfills, one compost facility, one transfer station and one recycling facility.