USGS Water-Year Summary 2024
02358795 JACKSON BLUE SPRING NEAR MARIANNA, FL
LOCATION - Lat 30°47'25", long 85°08'27" referenced to North American Datum of 1927, in NW 1/4 sec.33, T.5 N., R.9 W., Jackson County, FL, Hydrologic Unit 03130012, at spring vent inside Blue Springs Park, at northeast end of Merritt's Mill Pond reservoir, 0.1 mi southeast of State Road 164, 3.3 mi east of State Highway 71, and 5.2 mi east of Marianna.
DRAINAGE AREA - Indeterminate.
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1929 to October 1947, August 1973 to February 1985 (miscellaneous discharge measurements), April 2003 to August 2004 (fragmentary),September 2004 to July 12, 2010 (Discontinued), January 2017 to current year. Prior to October 1985, published as Blue Spring near Marianna.
GAGE - Water-stage recorder. Datum of gage is at NAVD88 and 0.42 ft below NGVD 29. Prior to August 2010 datum of gage was 64.15 ft above NGVD 29 and 63.73 ft above NAVD88.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water-quality monitors installed January 19, 2017. Period of record from January 19, 2017 to current year.
INSTRUMENTATION -
Water-quality monitor consisting of temperature, specific conductivity, dissolved oxygen and pH. An additional monitor consisting of only nitrate.
EXTREMES FOR PERIOD OF RECORD -
SPECIFIC CONDUCTANCE:
Maximum instantaneous value: 285 µS/cm; Apr. 29, 30 and Sept. 21, 2020
Minimum instantaneous value: 152.5 µS/cm; Sept. 16, 2020
WATER TEMPERATURE:
Maximum instantaneous value: 22.9 °C, Sept. 16, 2020
Minimum instantaneous value: 19.7 °C; Feb. 11, 2018
pH:
Maximum instantaneous value: 7.8 std. units; Many days,
Minimum instantaneous value: 7.3 std. units; many days
DISSOLVED OXYGEN:
Maximum instantaneous value: 8.1 mg/L; Sept. 20, 2020
Minimum instantaneous value: 6.3 mg/L; Oct. 14, 2018
NITRATE:
Maximum instantaneous value: 3.92 mg/L; May 12, 2021.
Minimum instantaneous value: 2.82 mg/L; February 11, 2018