Assuming your tests are accurate, the orthoP levels in your lake are high enough compared to nitrate to cause an algae bloom (phytoplankton). I find it hard to believe the nitrate is 0.0 in both lakes considering the info you provided earlier. Total PO4 levels in your lake compared to other lake indicate a plankton bloom. To verify density of planktonic algae you need a quantitative analysis of phytoplankton (not a qualitative analysis) or a chlorophyll a test for both lakes.
Last edited by Bill Cody; 08/22/07 08:50 PM.
