Wayland Patch 6/29/11: Elevated E. Coli Levels Found at Mansion Beach. The Wayland Health Department is working on signs warning visitors of the Mansion Beach area of Dudley Pond that slightly elevated E. coli levels have been detected in the water there. Steve Calichman, director of Wayland’s Health Department, explained that Mansion Beach is not a public swimming beach, but is still used by residents from time to time.