First Canyon Lake Treatments Yield Excellent Phosphorus Reduction Numbers

First of Five Canyon Lake Treatments to mitigate phosphorus pollution completed in September

First of Five Canyon Lake Treatments to mitigate phosphorus pollution completed in September

Canyon Lake has had water quality issues for a number of years and that landed the lake on the State list of impaired waters some years back.  Once on this list, the Clean Water Act requires planning and action to address the problems.  High levels of planktonic algae driven by high levels of nutrients such as phosphorus have been identified as the issue here.  The Community and Stakeholders came together and developed a multi faceted plan that includes targeting phosphorus pollution in the lake and in the lake sediments.  The technology that was selected to target this limiting nutrient was a phosphorus sequestering treatment that will target the lake in September and February of each year.  The first application was completed the week of September 23rd and the results of the monitoring program are now available.  Phosphorus numbers have dropped dramatically, close to 90%.  A good article on this can be found at this link:http://fridayflyer.com/2013/11/08/alum-treatments-proving-successful-in-canyon-lake

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