September 24, 2007 | 12:00 a.m. CDT
Spikes in fecal coliform and e. coli levels in lakes often occur after rainfall. It is suspected that the runoff from geese feces increases these levels. On Sunday, geese gathered at Katy Lake, off of Scott Boulevard south of Chapel Hill Road. In August, Katy Lake’s fecal coliform count was above Environmental Protection Agency’s recommndations, but September levels have dropped below acceptable EPA levels.

RELATED STORIES: Columbia's residential lakes tested for fecal coliform and E. coli