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Sedimentation |
City of Elk River Policy Regarding Water Quality Testing at Orono BeachDuring the swimming season, the City of Elk River monitors Lake Orono for potential health risks. It does this by testing for fecal coliform. Fecal coliform is only an indicator of health risk. The higher the fecal count the higher the potential the water also contains pathogens that can cause illness in people, if ingested. Fecal in the water may be of animal origin, which does not necessarily relate to a human health risk. It is also important to note that there is the potential to get sick if lake water is swallowed, even with a low fecal count. Typically, illness caused by water borne pathogens includes symptoms such as fever and diarrhea. The most susceptible are the very old and the very young, due to dehydration. If you suspect such an illness contact your physician and report it to the City of Elk River (763) 635-1000. Please note that the beach will no longer be closed and caution signs will be posted instead. Testing FrequencyFive samples shall be taken per month using an average of not more than 200 fecal coliform bacteria cells per 100 mL of water. No one sample should have a fecal coliform count greater than 1,000 bacteria colonies per 100 mL of water. Standard for Posting WarningIf the average fecal coliform count of the five samples exceeds 200, signage shall be posted at the beach stating, "Caution-Impaired Water Quality-Potential Health Risk if Swallowed." Daily sampling (Monday - Friday) will be conducted until the average drops below the limit, at which time the caution signs shall be removed.Notice When Beach is Posted
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