Tag Archives: HAB Deviation

Lake O Discharges 2023

St Lucie Canal, aka, C-44 at S-80, Ed Lippisch 1-22-23. ~Discharges began by ACOE from Lake O at 500 cfs on 1-22-23. For comparison, at worst times 5000 to 9000 cfs flooded the St Lucie on and off in 2013, 2016, 2018. 500cfs (cubic feet per second) is not good, but it is not high-level discharges. JTL

The St Lucie Canal, also known as, the C-44 Canal, is the property of the U.S. Government. Martin County public records show that in the early 1930s, as a result of the 1928 hurricane, the right of way of the Everglades Drainage District was taken as part of the Okeechobee Waterway.

The U.S. Army Corp of Engineers holds jurisdiction and decision making over the canal and the water that flows through it from basins and Lake Okeechobee. Since the great flood of 1947 and the creation of the Central and Southern Florida Plan, there has been a “local partner” in decision making. That partner today is named the South Florida Water Management District, formerly the Everglades Drainage District…

In a modern world, every week, there are conditions calls regarding Lake Okeechobee and the environmental envelope, etc.  As in all things, these calls start with the “higher ups” and then end with a public call. The public call is the ACOE Periodic Scientist Call. During this call, stakeholders share conditions and concerns from all over south and central Florida. Most participants are government people or elected officials, but also heads of NGOs and members of the public chime in.

Grey is environmental envelope for Lake O

The process generally works as such: after all these calls, the SFWMD, the local sponsor, puts out an operations statement or recommendation to the ACOE. All of this information is available on line, but its like trying to find a needle in hay stack.

SFWMD Ops_Position_Statement_Jan_17_23_2023

Of course the ACOE and the SFWMD have been communicating all week. At the end of the day, because the U.S. ACOE holds jurisdiction over the C-44 Canal the ACOE is the final decision maker. More than ever, though, they are listening and even seeking public input. This is refreshing!

Pulse to average 500cfs -releases to the SLR from LO, via ACOEO and https://eyeonlakeo.com, Todd Thurlow

The ACOEs has been announcing their decision on the Jacksonville District’s media call on Friday of the week of all the other calls. This past Friday, the day after the SFWMD operations report was submitted, and all the “calls”, January 20, 2023, the ACOE held its media call, and the decision to start discharging from Lake Okeechobee was made make Col. Booth.

https://www.usace.army.mil/About/Leadership/Bio-Article-View/Article/2768770/col-james-l-booth/

Going back a couple of years, Col. Kelly, at the ACOE, came up with an operations plan called a HAB DEVIATION or Harmful Algae Bloom Deviation. This was done after Governor Ron DeSantis put forth Executive Order 19-12 that did all possible to avoid harmful and toxic discharges to the northern estuaries, St Lucie and Caloosahatcee, as years 2013, 2016 and 2018 had been disasters. HAB DEVIATIONS, like all things Army Corp, is engineering-like and complicated, but goal was to allow a deviation from lake operations (LORS or LOSOM) if there was algae in the lake or it was possible there could be algae in the lake, like after a Category 4 hurricane stirs everything up and brings massive runoff…

I am not sure if what the ACOE is doing now qualifies as a technical HAB Deviation, but it is certainly in the spirit of one. Both SFWMD and ACOE have stated they are expecting a large post Ian cyanobacteria blue-green algae bloom in Lake Okeechobee this summer. High lake water in summer would set off releases so they are hopefully dodging a bullet by lowing the lake now.

Due to Hurricane Ian, a Category 4 storm, that obliterated the lower west coast of Florida, coming in just north of Sanibel Island and Ft Meyers, Lake Okeechobee has risen four feet since September 28, 2022 cresting at around 16.47 feet. Because the Herbert Hoover Dike was almost complete, the ACOE did not discharge right away. If the lake had been at the 15.50 limit as before dike completion, there would have been discharges, input or no input.

Yesterday, January 25, 2023, was the ribbon-cutting for the Herbert Hoover Dike Rehabilitation. It took eighteen years. This does not mean there is unlimited allowance of water in Lake Okeechobee, but it allows for more flexibility as will LOSOM. Sediment has been settling in the lake since September/October.

I for one, appreciate the flexibility of the ACOE. In the old world when I entered in 2008, they just followed the book and opened the gates toxic algae or no toxic algae. Now there is awareness and thought. And water quality remains the responsibility of the state. If the ACOE believe/agree a HAB deviation is necessary after a Category 4 hurricane in order to try to avoid toxic discharges in summer when the lake often cooks into a toxic soup, I am all for it. I do not want to go through those type of years again!

These charts below from my brother Todd’s eyeonlakeo.com website show how water was discharged to the St Lucie in 2016, 2018, 2021, and 2022. Although the ACOE is discharging at 500 cfs average now to the SLR, all will be done to avoid another “Lost Summer!”

2016 Lost Summer 2

2018 Lost Summer 3

2021 nice summer even with LO releases (green)

2022 great summer, no releases LO

Photos of Ed Lippisch taken on Sunday, January 22, 2022, the day the 500 cfs discharges began to the St Lucie. These photos are baseline photos to compare to the future. I takes a day or more for discharge water to reach the St Lucie Inlet. The differences in these photos is due to tide and light.

SLR/IRL 1-22-23 at 11am, Ed Lippisch

SLR/IRL 1-22-23, 5:45pm

What is a HAB Deviation?

-Shadow in Toxic algae, Central Marine, St Lucie River, Stuart, FL 2016. Photo JTLSince February 1, 2021, the St Lucie River has fallen under an Army Corp of Engineer’s “HAB Deviation” or Harmful Algae Bloom Deviation. If you are not familiar with it, this is a complex situation, and it took a lot to get there; however, I am going to try to explain it in easy terms.

Basically, HAB Deviation means that the ACOE has the authority to discharge from Lake Okeechobee in order to avoid another toxic summer. The HAB Deviation gives the ACOE the ability,  if necessary, to discharge more flexibly than is documented in the present Lake Okeechobee Regulation Schedule, or LORS 2008. The HAB Deviation may dovetail with new requirements in 2022, when a new, updated lake regulation schedule called LOSOM, is delivered. The HAB Deviation may or may not exist then. But for now, it does.

“Why?” you may ask. 

Because actually the ACOE is trying to protect the estuaries from a precarious future. For example, this year, today, (2-14-21) Lake Okeechobee, is at 15.40 feet. This is considered “high” from a St Lucie/Caloosahatchee point of view because looking forward to June 1st 2021, when rainy season begins, it appears the estuaries may be receiving discharges. 

Again, the purpose is for the ACOEs to be able to discharge -to get the lake down early- so they don’t “have” to massively discharge come summer -when the lake undoubtably will have algae blooms. The goal is to avoid discharging algae. Thus the term HAB DEVIATION.

As we can tell from this UF thesis (Gayle) written in 1975, algae blooms have been documented in Lake Okeechobee since 1967. Water Quality is the responsibility of the State, but things got so bad in 2016 and 2018 for the St Lucie and Calooshatchee that the ACOE stepped in and created the HAB DEVIATION SCHEDULE. 

So far the ACOE has not started discharging to the St Lucie River under the HAB DEVIATION, but we should be prepared. 

“Is it better to get the discharges during the winter months when there is not algae in Lake Okeechobee?” This is a difficult question. 

Best would be not to get any at all…

Today, I share because it is all so confusing. At a recent SFWMD meeting, I realized that I didn’t even understand that although the St Lucie is not receiving discharges, the deviation has already begun…

Approved Planned Deviation from LORS 2008 to reduce risk from Harmful Algal Blooms

2020 Planned Deviation to the Water Control Plan for Lake Okeechobee and Everglades Agricultural Area (LORS 2008)

Glades, Hendry, Martin, Okeechobee, and Palm Beach counties

Final Supplemental Environmental Assessment and Finding of No Significant Impact (Oct. 8 2020)

Supplemental EA and FONSI

Appendix A

Appendix B

Appendix C.1

Appendix C.2

Appendix D

NOTE: very large files may take several minutes to open and download.

-2016 Toxic Algae Bloom, St Lucie River at Central Marine. The algae blooms start in Lake Okeechobee. When discharged to the St Lucie River the blooms are exaserbated by poor water quality and the freshness of the once brackish estuary due to long releases from the Lake Okeechobee. This pattern must stop. More water must flow south. Photo JTL