When You Swim, Swim Healthy! Pools and Spas: - Lakes are sampled
monthly for E. coli - A lake must have a reading below 126
colonies of E. coli per 100 milliliters or they are resampled -
If three consecutive samples are above the recommended level,
the manager is notified of the problem - View results of water
analysis - These short videos show how we can all help keep our
lakes and streams clean: Pool and Water Safety Tips: - Never
swim alone. - Keep all gates locked or have a cover secured over
the pool, when closed. - No horseplay or running. - Lifesaving
equipment are not toys. Keep these items in their respective
places on the deck. - No food or drink in the pool and keep
glass containers out of the pool area. - No diving in shallow
areas. Return to the Environmental Health Division Homepage or
return to the Columbia/Boone County Health Department Homepage