Where's the algae? All the reported sites since Lake Okeechobee discharges started June 1

Possible blue-green algae blooms, some of it confirmed to be toxic, have been reported at these sites throughout the Treasure Coast.

Red markers indicate blooms from the first round of Lake Okeechobee discharges to the St. Lucie River from June 1 to July 1. Blue markers indicate blooms from the second round of Lake Okeechobee discharges starting July 13.

Green markers are not related to Lake Okeechobee discharges and are not necessarily related to each other, but are caused by rainfall runoff laden with nitrogen and phosphorus from fertilizer associated with agriculture and urban development.

June 2

Location: Lake Okeechobee

Lake Okeechobee Details: 8-12 long strands covering about a square mile about 2 to 3 miles northwest of Port Mayaca

8-12 long strands covering about a square mile about 2 to 3 miles northwest of Port Mayaca DEP: No inspection

June 4

Location: Port Mayaca

Port Mayaca Details: Flowing out of Lake Okeechobee into C-44 Canal leading to St. Lucie River

Flowing out of Lake Okeechobee into C-44 Canal leading to St. Lucie River DEP sample: Positive for blue-green (microcystis)

Positive for blue-green (microcystis) Toxicity: Low level (0.63 parts per billion)

June 5

Location: Riverland Mobile Home Park

Riverland Mobile Home Park Details: In marina on South Fork of St. Lucie River

In marina on South Fork of St. Lucie River DEP sample: Positive for blue-green (microcystis)

Positive for blue-green (microcystis) Toxicity: Low level (0.35 parts per billion)

June 6

Location: South River Condominiums, Stuart

South River Condominiums, Stuart Details: Patch found at dock, strands flowing in St. Lucie River

Patch found at dock, strands flowing in St. Lucie River Status: Reported to DEP

June 7

Location: Speedy Point, Stuart

Details: DEP reported "light algae visible on the surface" of the water near north end of Old Roosevelt Bridge

DEP sample: Positive for mixed algae species

Toxicity: No

June 8

Location: Downtown Stuart

Downtown Stuart Details: Small patches along Stuart Riverwalk behind Stuart Heritage Museum

Small patches along Stuart Riverwalk behind Stuart Heritage Museum Status: Reported to DEP

Location: Shepard Park, downtown Stuart

Shepard Park, downtown Stuart Details: Where Frazier Creek flows into St. Lucie River

Where Frazier Creek flows into St. Lucie River Status: Reported to DEP

Location: Palm City

Palm City Details: Just north of Palm City Bridge

Just north of Palm City Bridge Status: Reported to DEP

Location: Palm City

Palm City Details: In canal behind 1900 block of Southwest Mooring Drive

In canal behind 1900 block of Southwest Mooring Drive Status: Unknown

June 9

Location: C-44 Canal

Details: In canal near Warfield Boulevard Bridge

Status: Unknown

Location: C-44 Canal

Details: In canal near intake structure for C-44 Reservoir and Stormwater Treatment Area under construction

Status: Unknown

June 10

Location: Port Salerno

Port Salerno Details: North side of Sandsprit Park

North side of Sandsprit Park Status: Unknown

Location: Stuart

Stuart Details: De la Bahia Condominium marina on Kanner Highway, Stuart

De la Bahia Condominium marina on Kanner Highway, Stuart Status: Unknown

Location: Stuart

Stuart Details: Canal behind Harbor Street in southwest Stuart

Canal behind Harbor Street in southwest Stuart Status: Reported to DEP

June 11

Location: Stuart

Stuart Details: Behind home in the 800 block of St. Lucie Crescent

Behind home in the 800 block of St. Lucie Crescent Status: Reported to DEP

Location: Palm City

Palm City Details: Leighton Park, south side of Palm City Bridge

Leighton Park, south side of Palm City Bridge DEP sample: Positive for blue-green (microcystis)

Positive for blue-green (microcystis) Toxicity: Low level (0.38 parts per billion)

Location: Stuart

Stuart Details: Under Roosevelt Bridge

Under Roosevelt Bridge DEP sample: Positive for blue-green (microcystis)

Positive for blue-green (microcystis) Toxicity: Low level (0.37 parts per billion)

Location: Stuart

Stuart Details: Under Evans Crary Bridge connecting Stuart and Sewall's Point

Under Evans Crary Bridge connecting Stuart and Sewall's Point Status: Reported by DEP, sample taken

June 14

Location: Central Marine, Rio

Central Marine, Rio Details: In marina basin and along outside seawall

In marina basin and along outside seawall Status: Reported to DEP

Location: Roosevelt Bridge, downtown Stuart

Roosevelt Bridge, downtown Stuart Details: Along Riverwalk

Along Riverwalk DEP sample: A DEP crew found algae in the water column in the St. Lucie River at the Roosevelt Bridge in downtown Stuart. Sample taken

A DEP crew found algae in the water column in the St. Lucie River at the Roosevelt Bridge in downtown Stuart. Sample taken Toxicity: Microcystis aeruginosa; No microcystin toxin detected

Location: North Fork of St. Lucie River

North Fork of St. Lucie River Details: Near The Deck

Near The Deck DEP sample: A DEP crew found algae in the water column. and light streaking on surface in open water off North River Shores. Sample taken.

A DEP crew found algae in the water column. and light streaking on surface in open water off North River Shores. Sample taken. Toxicity: Microcystis aeruginosa; No microcystin toxin detected

Location: Stuart

Stuart Details: Under Evans Crary Bridge connecting Stuart and Sewall's Point

Under Evans Crary Bridge connecting Stuart and Sewall's Point Status: Reported by DEP, sample taken

Reported by DEP, sample taken Toxicity: Microcystis aeruginosa; No microcystin toxin detected

Location: Indian River Lagoon, ICWW, Stuart

Indian River Lagoon, ICWW, Stuart Details: At end of Cove Road

At end of Cove Road DEP sample: Algae observed by DEP; appeared to be very fine and lighter in coloration

Algae observed by DEP; appeared to be very fine and lighter in coloration Toxicity: Dominant taxon was a diatom; Skeletonema sp. was not detected; Anatoxin-a was not detected; Cylindrospermopsin was not detected; No microcystin toxin was detected

June 15

Location: Blue Cypress Lake, boat ramp area

Blue Cypress Lake, boat ramp area Details: DEP collected a sample under the walkway/bridge near the boat launch, and did not visibly see any algae

DEP collected a sample under the walkway/bridge near the boat launch, and did not visibly see any algae Status: no toxins

June 19

Location: Port Mayaca, lake side

Port Mayaca, lake side Details: DEP took sample at 3:17 p.m. describing light algae visible on surface

DEP took sample at 3:17 p.m. describing light algae visible on surface Status: Awaiting results

June 25

Location: Port Mayaca, lake side

Port Mayaca, lake side Details: DEP took sample

DEP took sample Status: 2.2 parts per billion toxin microcystin

Location: Stick Marsh boat ramp

Stick Marsh boat ramp Details: DEP took sample

DEP took sample Status: blue-green algae found; toxicity unknown

Location: Stick Marsh

Stick Marsh Details: DEP took sample

DEP took sample Status: blue-green algae found; toxicity unknown

June 26

Location: C-44 Canal below St. Lucie Lock and Dam

C-44 Canal below St. Lucie Lock and Dam Details: DEP took sample

DEP took sample Status: 0.59 parts per billion toxin microcystin

June 27

Location: St. Lucie Lock and Dam

St. Lucie Lock and Dam Details: DEP took sample

DEP took sample Status: 1.3 parts per billion toxin microcystin

July 2

Location: Lake Okeechobee at Port Mayaca Lock and Dam

Lake Okeechobee at Port Mayaca Lock and Dam Details: DEP took sample

DEP took sample Status: 1.9 parts per billion toxin microcystin

July 2

Location: St. Lucie River at Frazier Creek in Stuart

St. Lucie River at Frazier Creek in Stuart Details: DEP took sample

DEP took sample Status: 0.46 parts per billion toxin microcystin

July 2

Location: St. Lucie River at Central Marine in Stuart

St. Lucie River at Central Marine in Stuart Details: DEP took sample

DEP took sample Status: 1.9 parts per billion toxin microcystin

July 5

Location: North Fork of St. Lucie River at Bessey Creek (C-23 Canal) in Palm City

North Fork of St. Lucie River at Bessey Creek (C-23 Canal) in Palm City Details: DEP took sample

DEP took sample Status: 0.74 parts per billion toxin microcystin

July 5

Location: Port Mayaca Lock and Dam

Port Mayaca Lock and Dam Details: DEP took sample

DEP took sample Status: 0.3 parts per billion toxin microcystin

July 9

Location: St. Lucie Lock and Dam

St. Lucie Lock and Dam Details: DEP took sample

DEP took sample Status: 154.38 parts per billion toxin microcystin

July 9

Location: C-25 Canal at 25th Street bridge in Fort Pierce

C-25 Canal at 25th Street bridge in Fort Pierce Details: DEP took sample

DEP took sample Status: 0.33 parts per billion toxin microcystin

July 10

Location: North shore of St. Lucie River near Central Marine, Stuart

North shore of St. Lucie River near Central Marine, Stuart Details: DEP saw "specks of algae"

DEP saw "specks of algae" Status: no toxins found

July 12

Location: C-44 Canal at St. Lucie Lock and Dam

C-44 Canal at St. Lucie Lock and Dam Details: DEP reported "bright green" algae across the canal, took sample

DEP reported "bright green" algae across the canal, took sample Status: 15 parts per billion toxin microcystin

July 16

Location: C-44 Canal at St. Lucie Lock and Dam

C-44 Canal at St. Lucie Lock and Dam Details: DEP reported algae suspended in the water "flowing from the lake through the open gates"

DEP reported algae suspended in the water "flowing from the lake through the open gates" Status: sample results pending

July 16

Location: Circle Bay condos, South Fork, Stuart

Circle Bay condos, South Fork, Stuart Details: DEP reported algae in water column

DEP reported algae in water column Status: sample results pending

July 16

Location: North shore of St. Lucie River, Stuart

North shore of St. Lucie River, Stuart Details: DEP reported algae in water column, streaks on surface

DEP reported algae in water column, streaks on surface Status: sample results pending

July 16

Location: South Fork at Rustic Circle

South Fork at Rustic Circle Details: DEP reported algae in water column, streaks on surface

DEP reported algae in water column, streaks on surface Status: sample results pending

July 16

Location: South Fork at Leighton Park, Palm City

South Fork at Leighton Park, Palm City Details: DEP reported algae in water column, streaks on surface

DEP reported algae in water column, streaks on surface Status: sample results pending

July 17

Location: Canal off South Fork behind Southwest Mooring Drive , Palm City

Canal off South Fork behind Southwest Mooring Drive , Palm City Details: Homeowner reported thick algae on water surface

Homeowner reported thick algae on water surface Status: DEP notified

Report algae sightings