Wayland Patch 7/9/11: Mansion Beach E. Coli Levels Now Below State Maximums. Last week the water at Mansion Beach on Wayland's Dudley Pond showed E. coli levels of 240 colony forming units (CFUs), slightly above the state’s maximum contaminant level of 235. This week, at 68 (CFUs), those levels are well below the state’s threshold for closing public beaches. Surface Water Quality Committee (SWQC) member Mike Lowery said in an email report to town officials and media that the reasons for the sharp decline are unknown, but could be due to good weather, tactics used to deter geese from the area, pet owners cleaning up after their pets or a combination of factors. Whatever the reason, "We're happy to see the situation improved," Lowery wrote.