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
Morman Branch Springs vent at base of tree

Morman Branch Springs vent at base of tree

Morman Branch Springs

Marion County

Description

Morman Branch Springs is a third-magnitude spring consisting of several sand boils. One of the springs flows from a vent at the base of a large tree. The springs run into Morman Branch, which flows about 1.2 miles to the east and then north to Juniper Creek.

Discharge

Morman Branch Springs vent at base of tree

Morman Branch Springs vent at base of tree

Discharge at Morman Branch Springs was measured four times by the U.S. Geological Survey (USGS), from 1980 to 2001, at the crossing with SR 19. The difference between the minimum and maximum discharges is 4.2 cubic feet per second (cfs) over the period. The maximum discharge of 10.1 cfs was measured in June 1997; the minimum discharge of 5.9 cfs was measured in May 2001. The mean and median discharges for the period are 7.41 cfs and 6.82 cfs, respectively (see the table below).

Water quality

Morman Branch Springs was sampled by USGS in 1980, with only field measurements collected in 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 Morman Branch Springs

Morman Branch Springs Min Mean Median Max Count Period
Discharge, cfs 5.9 7.41 6.82 10.1 4 1980−2001
Chloride, total, mg/L as Cl 36.0 36.0 36.0 36.0 1 1980
pH, field 6.80 7.25 7.25 7.70 2 1980−2000
Specific conductance, lab, µmhos/cm at 25°C 281 298 298 315 2 1980−2000
Sulfate, total, mg/L as SO4 28.0 28.0 28.0 28.0 1 1980
Total dissolved solids, mg/L 166 166 166 166 1 1980
Water temperature, °C 20.5 21.8 21.8 23.0 2 1980−2000
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