Lake Water Quality 2006 Report - Lakefield Herald

To put the results in perspective:• 100 E.coli/100 mL is the level at which public beaches are posted unsafe for swimming;• Kawartha Lake Stewards Association believes the safe swimming level for our lakes should be more stringent than this,and have set the acceptable level at 50 E.coli/100 mL. KLSA regards counts over 50 as cause for concern;• Counts 20 and below, with an occasional reading between 20 and 50, are normal for the Kawartha lakes;• A “-“ indicates no data available for that date.White Lake: White Lake Cottagers’ Assoc.2006 E.coli Lake Water TestingE.coli/100 mLSite No. 4-Jul-06 17-Jul-06 24-Jul-06 31-Jul-06 8-Aug-06 5-Sep-061 28 21 10 46 10 102 36 29 16 41 19 3White LakeThe two sites on White Lake showed counts that would be considered somewhathigher than the average for the KLSA lakes. Generally, KLSA sites in 2006 had manyreadings under 10 E.coli/100 mL. However, the White Lake sites were in an area ofshallow water, rich in wildlife, so the many counts between 20 and 50 would beconsidered normal for this type of area. The heavy rain before July 4 recorded bythe volunteer may have raised the counts somewhat. However, there was also heavyrain before the September 5 low counts.80