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
St. Johns River Water Management District - www.sjrwmd.com

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Water bodies, watersheds and storm water
Witherington Spring main view

Witherington Spring main view
photo by T. Roberts, FGS

Witherington Spring

Orange County

Description

Witherington Spring is a third-magnitude spring with three pools. The largest pool is about 130 feet long and 110 feet wide. Sand boils in the bottom of the pool are not easily discernible due to poor water clarity. However, upwelling of suspended organic matter on the western side of the largest pool presents possible evidence of sand boils that will require further investigation. Flow from the pool is eastward through a run about 15 feet wide that forms the head of Mill Creek.

Witherington Spring pool

Witherington Spring pool

Discharge

Discharge at Witherington Spring was measured four times by the U.S. Geological Survey (USGS) and once by St. Johns River Water Management District. The mean and median discharges for the period are 4.7 and 3.7 cubic feet per second, respectively (see the table below).

Water quality

Witherington Spring was sampled by USGS four times from 1960 to 1995. The district sampled Witherington Spring 10 times from 1995 to 2000. Summary statistics of the water quality data for selected variables are shown in the table below.

Summary statistics of water quality and discharge at Witherington Spring

Witherington Spring Min Mean Median Max Count Period
Discharge, cfs 1.0 4.7 3.7 12.0 5 1945−1995
Alkalinity, total, mg/L as CaCO3 89.0 96.3 96.0 103.9 11 1960−2000
Calcium, total, mg/L as Ca 27.0 29.6 29.0 36.7 9 1995−2000
Chloride, total, mg/L as Cl 7.0 7.8 7.8 10.0 12 1960−2000
Fluoride, total, mg/L as F 0.17 0.19 0.19 0.21 9 1995−2000
Magnesium, total, mg/L as Mg 8.7 9.4 9.4 10.5 9 1995−2000
Nitrate + nitrite, total, mg/L as N 0.09 0.38 0.32 0.70 9 1995−2000
Orthophosphate, total, mg/L as P 0.10 0.14 0.14 0.19 9 1995−2000
pH, field 6.78 7.14 7.08 7.60 12 1960−2000
Potassium, total, mg/L as K 1.0 1.2 1.1 1.7 7 1995−2000
Sodium, total, mg/L as Na 4.7 5.2 5.2 6.0 9 1995−2000
Specific conductance, field, µmhos/cm at 25°C 233 244 241 276 9 1995−2000
Specific conductance, lab, µmhos/cm at 25°C 219 234 235 242 7 1960−1996
Sulfate, total, mg/L as SO4 9.1 11.4 11.0 15.0 13 1960−2000
Total dissolved solids, mg/L 126 139 138 156 12 1972−2000
Water temperature, °C 23.3 23.8 23.7 25.0 14 1960−2000
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