Post Hurricane Matthew, I am sharing Dr Gary Goforth’s “Updated Lake Okeechobee Discharges to the Estuaries and Everglades,” dated yesterday, October 10, 2016 as sent to state and local officials, as well as the press. Many helpful visuals are attached.
Dr Goforth continues to lead in documenting the destruction of what was once lauded as North America’s “most biodiverse estuary,” our beloved St Lucie River/Indian River Lagoon…
Through shared knowledge, we advocate for a better Florida water future.
More than 204 billion gallons of polluted Lake water has been discharged to the St. Lucie (25% of total Lake discharges); more than 456 billion gallons of polluted Lake water has been discharged to the Caloosahatchee (55% of Lake discharges). By contrast, only 20% of Lake discharges has been sent to the south, with only 6% sent to the STAs/Everglades.
Ag runoff continues to contribute significant amounts of flow and pollution load to the St. Lucie: 39% of flow, 53% of total phosphorus and 42% of total nitrogen.
I added a chart comparing monthly Lake flows to the STAs – 2016 releases to STAs has been significantly less than 2014 and 2015.
The following update Comparison of Lake O Releases was shared by Dr Gary Goforth on 7-14-16. Thank you Dr Goforth. The more informed and studied we are about where the water is going, the better chance we have to change this situation.
1. Lake Okeechobee has received more than twice the watershed inflows since January compared to last year at this time.
2. Discharges from the Lake have increased 25% compared to last year this time, however the distribution of inflows has dramatically changed compared to last year (as you so clearly know):
3. Since January 1, a. approx. 525 billion gallons of Lake water have been sent to the estuaries (including Lake Worth Lagoon) b. Lake flows are averaging about 1 billion gallons per day to the St. Lucie River/Estuary and about 2.1 billion gallons per day, and about 0.1 billion gallons /day to Lake Worth Lagoon, for a total of about 3.2 billion gallons per day c. Twenty-five (25) times more Lake water has been discharged to the estuaries than to the Everglades d Ag runoff has contributed significant nutrient loads to the St. Lucie River/Estuary: i. Nitrogen loads: 36% from ag and 54% from Lake [Dear Gov. Scott and SFWMD Board members: Martin County septic tanks contributed about 2% of the nitrogen load] ii. Phosphorus loads: 53% from ag and 30% from Lake e. 93% of the sediment load to the St. Lucie River/Estuary this year has come from the Lake discharges (37 million pounds)
4. Only 32 billion gallons of Lake water have been sent to the STAs this year – less than 1/3 of the amount sent last year at this time.