Oaks Pond Historical Data (MDEP)
•Surface range: 8.0 - 9.0 ppb
•Bottom range: 6.0 - 18.0 ppb
•Potential internal recycling
This graph depicts the historical data obtained from the DEP:

Surface ranges from 8-9 btw. 1987 and 1998 - low potential for algal blooms based on that

However, increasing trend of phosphorus levels from 6-18 ppb in 20 yr time period
Combined with trend of oxygen depletion in bottom suggests that internal recycling of phosphorus may be occurring