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Algae Test Results

The tables below contain blue-green algae and red tide results from water samples taken in Lee County by the Florida Department of Environmental Protection (DEP) and the Florida Fish and Wildlife Conservation Commission (FWC). Information on this page is updated periodically throughout the week. More current results may be available by visiting the DEP Florida Algal Bloom Site Visits map and the FWC Red Tide Current Status map.

Blue Green Algae Data
Datemicrograms/LLocation
6/11/20201.2Gator Lake at Six Mile Cypress Slough
6/16/20204.3Caloosahatchee River - Davis Boat Ramp
6/25/20200.26Gator Lake at Six Mile Cypress Slough
6/29/2020not detectedC43 canal, S79 (upstream)
6/30/20200.58Caloosahatchee River - Olga Rd
6/30/2020not detectedCaloosahatchee River - Davis Boat Ramp
7/8/2020not detectedCaloosahatchee River - Marina at Edison Ford

Table Data Last Modified: Fri Jul 10, 2020 14:52:28 EDT

Blue Green Algae Legend
LevelDescription
Greater than 8 micrograms/LPotential for health impact

Table Data Last Modified: Fri Jun 07, 2019 15:57:24 EDT

Red Tide Data
DateLevelLocation
7/6/2020not present Burnt Store Marina (Charlotte Harbor)
7/6/2020not present Boca Grande Pass
7/6/2020not present Little Bokeelia Island; N of (Charlotte Harbor)
7/6/2020not present Mondongo Island; W of (Pine Island Sound)
7/6/2020not present Captiva Pass
7/6/2020not present Captiva Rocks; SW of (Pine Island Sound)
7/6/2020not present Hemp Key; S of (Pine Island Sound)
7/6/2020not present Cork Island; W of (Pine Island Sound)
7/6/2020not present Redfish Pass; 1.8 mi E of (Pine Island Sound)
7/6/2020not present Redfish Pass (Pine Island Sound)
7/6/2020not present Regla Island; W of (Pine Island Sound)
7/6/2020not present Buck Key; 1.9 mi NE of (Pine Island Sound)
7/8/2020not present South Seas Plantation Entrance
7/6/2020not present York Island; W of (Pine Island Sound)
7/6/2020not present Buck Key; S of (Blind Pass)
7/8/2020not present Lynn Hall Park
7/8/2020not present Lighthouse Beach
7/6/2020not present Mound House Dock (Estero Bay)
7/6/2020not present Coon Key; N of (Estero Bay)
7/8/2020not present Tarpon Road Beach
7/6/2020not present Big Carlos Pass
7/6/2020not present Carl Johnson Park Boat Ramp (Estero Bay)
7/8/2020not present Lovers Key State Park
7/6/2020not present Hogue Channel
7/8/2020not present Bonita Beach Park

Table Data Last Modified: Fri Jul 10, 2020 15:36:15 EDT

Red Tide Legend
LevelCells per LiterPossible Effects
Not present/Background0-1,000None Anticipated.
Very low>1,000-10,000Possible respiratory irritation; shellfish harvesting closures > 6 cells/mL.
Low>10,000-100,000Respiratory irritation; possible fish kills and bloom chlorophyll probably detected by satellites at upper range.
Medium>100,000-1,000,000Respiratory irritation and probably fish kills.
High>1,000,000As above plus discoloration

Table Data Last Modified: Tue May 14, 2019 07:41:11 EDT

Mobile Version of this Page

Please visit our red tide and blue-green algae pages for more information.

Sources:

DEP Florida Algal Bloom Site Visits

EPA Recommendations for Cyanobacteria and Cyanotoxin

FWC Red Tide Current Status Update

FWC Red Tide Current Status Map