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
Forest Springs main view

Forest Springs main view

Forest Springs

Putnam County

Description

Forest Springs is a fourth-magnitude spring that has an elongated pool about 30 feet long and 7 feet wide with at least two vents. A slight boil is visible from the vents, and there is a distinct sulfur odor. The spring run meanders 2.5 miles toward the west to the St. Johns River.

Discharge

Forest Springs pool

Forest Springs pool

Discharge at Forest Springs was measured by the U.S. Geological Survey (USGS) in 1972. St. Johns River Water Management District measured discharge 12 times from 1995 to 2001. The difference between the minimum and maximum discharges is 0.29 cubic feet per second (cfs) over the period. The maximum measured discharge of 0.45 cfs occurred in May 1998; the minimum discharge of 0.16 cfs occurred in September 1999. The mean and median discharges for the period are 0.29 cfs and 0.28 cfs, respectively (see the table below).

Water quality

Forest Springs was sampled by USGS in 1972. The district sampled Forest Springs 14 times from 1995 to 2001. Summary statistics of the water quality data for selected variables are shown in the table below.

Summary statistics of water quality and discharge at Forest Springs

Forest Springs Min Mean Median Max Count Period
Discharge, cfs 0.16 0.29 0.28 0.45 13 1972−2001
Alkalinity, total, mg/L as CaCO3 97.7 103.7 103.3 109.0 13 1972−2001
Calcium, total, mg/L as Ca 53.2 62.7 62.7 77.0 13 1995−2001
Chloride, total, mg/L as Cl 523.0 566.9 563.9 608.0 14 1972−2001
Fluoride, total, mg/L as F 0.19 0.21 0.21 0.23 13 1995−2001
Magnesium, total, mg/L as Mg 31.2 34.5 34.6 39.1 13 1995−2001
Orthophosphate, total, mg/L as P 0.05 0.06 0.05 0.08 12 1995−2000
pH, field 6.56 7.45 7.49 7.89 12 1972−2001
Potassium, total, mg/L as K 7.5 8.8 8.9 10.0 13 1995−2001
Sodium, total, mg/L as Na 256.8 296.7 293.5 342.0 13 1995−2001
Specific conductance, field, µmhos/cm at 25°C 1753 2032 2086 2130 8 1996−2001
Sulfate, total, mg/L as SO4 79.0 83.8 83.0 93.0 14 1972−2001
Total dissolved solids, mg/L 1054 1134 1105 1300 12 1995−2001
Water temperature, °C 22.0 22.5 22.4 23.2 15 1972−2001
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