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

Barrel Spring

Orange County

Description

Barrel Spring is a fourth-magnitude spring. Further investigation is required to identify seeps and sand boils and to resample for water quality.

Discharge

Discharge at Barrel Spring was measured by St. Johns River Water Management District three times from 1995 to 1997. The mean and median discharges for the period are 0.25 and 0.27 cubic feet per second, respectively (see the table below).

Water quality

Barrel Spring was sampled four times by the district from 1995 to 1997. Summary statistics of the water quality data for selected variables are shown in the table below.

Summary statistics of water quality and discharge at Barrel Spring

Barrel Spring Min Mean Median Max Count Period
Discharge, cfs 0.18 0.25 0.27 0.31 3 1995−1997
Alkalinity, total, mg/L as CaCO3 94.0 97.1 97.2 100.0 4 1995−1997
Calcium, total, mg/L as Ca 29.7 31.4 32.0 32.0 4 1995−1997
Chloride, total, mg/L as Cl 8.0 9.2 9.0 11.0 4 1995−1997
Fluoride, total, mg/L as F 0.24 0.25 0.25 0.26 4 1995−1997
Magnesium, total, mg/L as Mg 8.3 8.9 9.0 9.1 4 1995−1997
Nitrate + nitrite, total, mg/L as N 0.04 0.05 0.05 0.06 4 1995−1997
Orthophosphate, total, mg/L as P 0.03 0.04 0.04 0.04 4 1995−1997
pH, field 7.23 7.45 7.42 7.73 4 1995−1997
Potassium, total, mg/L as K 1.2 1.3 1.2 1.4 3 1995−1997
Sodium, total, mg/L as Na 6.0 6.4 6.2 7.0 4 1995−1997
Specific conductance, field, µmhos/cm at 25°C 245 251 252 256 4 1995−1997
Specific conductance, lab, µmhos/cm at 25°C 252 252 252 252 1 1996
Sulfate, total, mg/L as SO4 19.4 21.1 21.0 23.0 4 1995−1997
Total dissolved solids, mg/L 145 148 147 151 3 1995−1997
Water temperature, °C 21.7 23.7 23.6 26.0 4 1995−1997
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