This is Rick Cooper's response to the e-mail sent asking if Shelley's Septic Tanks' runoff is going into Lake Ola. NAME REDACTED Thank you for bringing your concerns to our attention. As we looked into your concern with Shelly’s Septic, it was determined that Shelly’s property is located outside of Lake Ola’s drainage basin (see map below). Shelly’s runoff flows south through a retention pond that is owned by Orange County and then continues through a constructed wetland that is owned by St. Johns River Water Management District. From there, water continues to flow south towards Lake Apopka. As I’m sure you are aware, the county collects water samples quarterly and posts the results on the Orange County Water Atlas ( https://www.orange.wateratlas.usf.edu/lake/waterquality.asp?wbodyid=140357&wbodyatlas=lake ). The algae you are finding is more than likely linked to a nutrient source located within the Lake Ola drainage basin. These sources coul...