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
Markee Spring main view

Markee Spring main view

Markee Spring

Lake County

Description

Markee Spring is a low fourth-magnitude spring. The spring head is a relatively large, oval-shaped pool about 20 feet long and 10 feet wide. Water flows from sand boils covered with organic debris. The spring run meanders about 500 feet as it flows northward into wetlands and then into Sulphur Run.

Discharge

Markee Spring run

Markee Spring run

Discharge at Markee Spring was measured by St. Johns River Water Management District in 2003, 2005, and 2008. The mean discharge for Markee Spring is 0.24 cubic feet per second (see the table below).

Water Quality

Markee Spring was sampled once in 2004 by Lake County and once in 2005 by the district. Summary statistics of the water quality data for selected variables are shown in the table below.

Summary statistics of water quality and discharge at Markee Spring

Markee Spring Min Mean Median Max Count Period
Discharge, cfs 0.22 0.24 0.22 0.28 3 2003−2008
Alkalinity, total, mg/L as CaCO3 139.0 139.5 139.5 140.0 2 2004−2005
Calcium, total, mg/L as Ca 62.5 67.0 67.0 71.4 2 2004−2005
Chloride, total, mg/L as Cl 33.5 33.9 33.9 34.2 2 2004−2005
Dissolved Oxygen 0.50 0.50 0.50 0.50 1 2004
Magnesium, total, mg/L as Mg 15.7 16.2 16.2 16.6 2 2004−2005
Nitrate + nitrite, total, mg/L as N 0.02 0.02 0.02 0.02 1 2004
Orthophosphate, total, mg/L as P 0.06 0.06 0.06 0.06 1 2005
pH, field 7.50 7.65 7.65 7.80 2 2004−2005
Phosphorus, total, mg/L as P 0.06 0.06 0.06 0.06 1 2005
Potassium, total, mg/L as K 1.4 1.4 1.4 1.4 1 2004
Sodium, total, mg/L as Na 20.2 20.3 20.3 20.4 2 2004−2005
Specific conductance, field, µmhos/cm at 25°C 521 541 541 560 2 2004−2005
Specific conductance, lab, µmhos/cm at 25°C 560 560 560 560 1 2005
Sulfate, total, mg/L as SO4 85.4 89.9 89.9 94.3 2 2004−2005
Total dissolved solids, mg/L 335 349 349 362 2 2004−2005
Water temperature, °C 22.0 22.0 22.0 22.0 2 2004−2005
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