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Item # 8.3.A. <br />ver <br />MEMORANDUM <br />TO: Park and Recreation Commission <br />FROM: Bill Maertz, Parks and Recreation Commissioner <br />DATE: March 8, 2006 <br />SUBJECT: Lake Orono Beach Testing and Posting Policy <br />ITEM: <br />Change testing standards for water quality at the Lake Orono Beach <br />BACKGROUND: <br />The standards for water quality testing and beach posting at Lake Orono do not fall within <br />the recommended range by the MPCA. A review of literature indicates that a threshold of <br />200 CFU (Colony Forming Units) of Fecal Coliform per 100 ml. creates a potential hazard <br />to bathers. City of Elk River environmental staff, wastewater treatment plant staff, and parks <br />and recreation staff recommend that the Lake Orono Beach be tested three days a week <br />during the bathing season with caution/informational signs posted when there is a reading <br />over 200 CFU per 100m1. Signs would remain up until readings are below 2000FU per 100 <br />ml. <br />ACTION REQUESTED: <br />Recommend a change in testing policy to include testing three days per week with <br />caution/information signs clearly posted when there is a reading of 200 CFU per 100rn1. or <br />higher. <br />