St. Johns River Water Management District St. Johns River Water Management District St. Johns River Water Management District St. Johns River Water Management District St. Johns River Water Management District St. Johns River Water Management District
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Water bodies, watersheds and storm water
Green Algae Boil A

Green Algae Boil A

Green Algae Boil

Lake County

Description

Green Algae Boil is a fifth-magnitude spring and consists of vents A and B that flow toward the southwest to the Sulphur Run of Black Water Creek. Water flow is barely visible from beneath dense leaf debris in the small, circular pool at vent A, while there is no visible flow in the pool at vent B.

Green Algae Boil B run

Green Algae Boil B run

Discharge

Discharge from Green Algae Boil was measured at 0.14 cubic feet per second by St. Johns River Water Management District in 2005. This is a combined discharge for vents A and B in the spring run as it flows to Sulphur Run.

Water quality

Green Algae Boil vents A and B were sampled by the district in 2005. A summary of the water quality data for selected variables is shown in the table below.

Summary statistics of water quality and discharge
at Green Algae Boil

Green Algae Boil Vent A Vent B Period
Discharge, cfs -- 0.14 2005
Alkalinity, total, mg/L as CaCO3 164.0 169.0 2005
Calcium, total, mg/L as Ca 93.1 91.7 2005
Chloride, total, mg/L as Cl 209.0 202.0 2005
Magnesium, total, mg/L as Mg 24.6 22.2 2005
Orthophosphate, total, mg/L as P 0.06 0.06 2005
pH, field 7.61 7.54 2005
Phosphorus, total, mg/L as P 0.06 0.07 2005
Potassium, total, mg/L as K 5.0 4.1 2005
Sodium, total, mg/L as Na 130.0 120.0 2005
Specific conductance, field, µmhos/cm at 25°C 1248 1165 2005
Specific conductance, lab, µmhos/cm at 25°C 1206 1128 2005
Sulfate, total, mg/L as SO4 119.0 81.5 2005
Total dissolved solids, mg/L 733 668 2005
Water temperature, °C 23.4 22.2 2005
Units: µmhos/cm = micromhos per centimeter
         mg/L = milligrams per liter
         cfs = cubic feet per second

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St. Johns River Water Management District
4049 Reid Street, Palatka, FL 32177
(800) 725-5922