Thank you to the Lake Partner Program. 

Find Phosphorous Level link mid way down

I get a kit early spring to do a monthly phosphorous test on Brandy Lake ..Here are the results.  Note lakes withy tannin usually have higher phosphorous  than lakes without.   This is free…data

The link is massive….you can see several years of data from Brandy Lake Muskoka.   We are line number 3133.  I am not sure where FOCA get the 2nd data from.

Last year are numbers were:

May – 25.8 ug/l (Micrograms per Liter)

June  – 30.8

July – 25.8

Aug  – 36

Sept – 28

There is a test online showing Nov. 41.4