Original sentence: Gailey Reservoir is a pair of reservoirs, separated by a dam, and owned by British Waterways.It is the site of a nature reserve in South Staffordshire, operated by the West Midland Bird Club
Edited sentence: A connected reservoir, Calf Heath Reservoir, stands a little further to the west, beyond the M6 motorway.Gailey Reservoir is a pair of canal feeder reservoirs in South Staffordshire, separated by a dam, and owned by British Waterways.Gailey Reservoir is the site of a nature reserve, operated by the West Midland Bird Club.Gailey Upper Reservoir is to the east; Gailey Lower Reservoir to the west