Here is the historical phosphorus levels measured in past studies of Pattee Pond.  The red line across the graph represents the 12 parts-per-billion phosphorus.  The Maine Department of Environmental Protection says there is the possibility for algal blooms to occur in lakes in the range from 12 parts-per-billion phosphorus.  As you can see, for much of its recent history Pattee Pond has been above this level, and as with the transparency there is a natural fluctuation, though there has been a decrease seen since the maximum in 1994.  This is another point which shows that through the past efforts of the Pattee�s Pond Association and other residents, water quality in the lake has generally improved.  However, not all is perfect, as I will show you our findings for phosphorus levels at Site 1. [Click for next slide]