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Water-Year Summary for Site 02358795

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00045 Precipitation(Sum)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  
99133 NO3+NO2,water,insitu(Max.,Min.,Mean)  

Water year 2019: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2019
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.
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). Prior to October 1985, published as Blue Spring near Marianna.
GAGE - Water-stage recorder. Datum of gage is 64.15 ft above National Geodectic Vertical Datum of 1929 (furnished by Northwest Florida Water Management District).
REMARKS - Records poor. The spring flow is affected by Merritts Mill Pond reservoir at all times.
PERIOD OF RECORD - Water-quality monitors installed January 19, 2017.  Period of record from January 19, 2017 to current year.

YSI EXO1 water-quality monitor consisting of temperature, specific conductivity, dissolved oxygen and pH.

Satlantic SUNA V2 monitor consisting of nitrate.

REMARKS - Extremes for current year and extremes for period of daily record are based on recorded values and may have been exceeded during periods of no record.


Maximum instantaneous value: 279 µS/cm; April 22, 2017; April 27, 2017

Minimum instantaneous value: 226 µS/cm; February 11, 2018

Maximum daily mean: 275 µS/cm; Many days

Minimum daily mean: 250 µS/cm; May 2, 2017


Maximum instantaneous value: 21 °C; May 28, 2017; July, 29, 2018

Minimum instantaneous value: 19.7 °C; February 11, 2018

Maximum daily mean: 20.7 °C; Many days

Minimum daily mean: 20.3 °C; February 11, 2018


Maximum instantaneous value: 7.7 std. units; Many days

Minimum instantaneous value: 7.3 std. units; Many days

  Maximum daily median: 7.7 std. units; Many days

  Minimum daily median: 7.4 std. units; Many days


Maximum instantaneous value: 8.0 mg/L; February 11, 2018; February 12, 2018

Minimum instantaneous value: 6.6 mg/L; April 15, 2018

Maximum daily mean: 7.5 mg/L; February 11, 2018

Minimum daily mean: 6.9 mg/L; Many days


Maximum instantaneous value: 3.69 mg/L;September 11, 2017

Minimum instantaneous value: 2.82 mg/L; February 11, 2018

Maximum daily mean: 3.67 mg/L; September 11, 2017

Minimum daily mean: 3.23 mg/L; February 11, 2018