The Kawartha Stewards Association (KLSA) recently published this report on phos in their set of lakes. (Chandos is not included).
These lakes are flow-through, meaning that one flows into another, and so phosphorus levels in one lake can affect levels in the downstream lake. It also means that the levels can vary widely.
On a comparative basis, phosphorus levels in Chandos are in the 10 µg/L range,, whereas the Kawartha lakes reported vary widely from 5 to 25.
Secchi Depths at Chandos are in the 5-6m range, whereas in the Kawartha Lakes they range from 2 to to 7.