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Water-Year Summary for Site 03216070

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00010 Temperature, water(Min.,Max.,Mean)  
00060 Discharge(Mean) [Daily Mean]  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Min.,Max.,Mean)  
00300 Dissolved oxygen(Min.,Max.,Mean)  
00400 pH(Min.,Max.,Med.)  
32315 Relative fChl, water, in situ(Max.,Mean,Min.)  
32316 fChl, water, in situ(Mean,Max.)  
32319 fPC, water, in situ(Max.,Mean,Min.)  
32321 Relative fPC, water, in situ(Max.,Mean,Min.)  
63680 Turbidity, Form Neph(Mean,Max.,Min.)  
99133 NO3+NO2,water,insitu(Min.,Max.,Mean)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
03216070 OHIO RIVER AT IRONTON, OH
LOCATION - Lat 38°31'55.40", long 82°41'09.40" referenced to North American Datum of 1983, Lawrence County, OH, Hydrologic Unit 05090103,
DRAINAGE AREA - 60,816.11 mi²
SURFACE-WATER RECORDS
GAGE - Water-stage recorder, and velocimeter. Datum of gage is 480.41 feet above NAVD of 1988.
COOPERATION -

Governor's Office of Agricultural Policy - 2015-2020

USGS Earth Systems Processes Division - 2021-current

REMARKS -

See Station Analysis for record rating

Water Quality daily values and partial days are not qualified prior to 8/16/2021. 

Water Quality record quality is rated internally. For questions about record quality ratings, please send email to gs-w-oh_NWISWeb_Data_Inquiries@usgs.gov.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 469,000 ft³/s, Feb 19, 2018; maximum gage height, 54.67 feet, Feb 19, 2018.
WATER-QUALITY RECORDS
PERIOD OF RECORD -

CHEMICAL ANALYSES: September 2, 2015 to current

WATER TEMPERATURE: September 2, 2015 to current

SPECIFIC CONDUCTANCE: September 2, 2015 to current

 pH: September 2, 2015 to current

DISSOLVED OXYGEN: September 2, 2015 to current

TURBIDITY: September 2, 2015 to current

NITRATE: September 2, 2015 to current

CHLOROPHYLL: July 20, 2020 to November 12, 2020; June 8, 2021 to December 6, 2021; July 7, 2022 to

PHYCOCYANIN: July 20, 2020 to November 12, 2020; June 8, 2021 to December 6, 2021; July 7, 2022 to

 

EXTREMES FOR PERIOD OF RECORD -

WATER TEMPERATURE: Maximum recorded: 31.89 C,  July, 29, 2020; minimum recorded, 0.0  C, January 18 and 19, 2016, and 0.0 C, January 19, 2018*.

SPECIFIC CONDUCTANCE: Maximum recorded, 550 microsiemens/cm, September 24, 2016; minimum recorded, 185 microsiemens/cm, July 3, 2016.

pH: Maximum recorded, 9.0 units 07/29/2020; minimum recorded, 6.7 units June 25-26, 2016.

DISSOLVED OXYGEN: Maximum recorded, 16.2 mg/L, January 01, 2018*; minimum recorded, 2.2 mg/L, September 11 ,2016

TURBIDITY: Maximum recorded, 3770 FNU, September 11, 2015; minimum recorded, 0.1 FNU, July 26, 2016 and numerous other cases after that date

NITRATE: Maximum recorded, 1.62 mg/L, September 12, 2015; minimum recorded, 0.04 mg/L, December 23, 2017.  At this site it is common for nitrate values to spike.  The maximum for this POR is a spike and was retained because there was no good cause to delete this reading and not the rest of the spikes across the POR.

CHLOROPHYLL: Maximum recorded, 80.1 mg/L, July 28, 2020 and  9.8 RFU, July 26, 2020; minimum recorded, -0.7 mg/L, September 24, 2020 and -0.8 RFU, August 10, 2021

PHYCOCYANIN:  Maximum recorded, 4.50 mg/L, October 17, 2020 and 1.9 RFU, August 1, 2020; minimum recorded, -0.2 mg/L, multiple days in 2020 and 2021; -0.2 RFU, multiple days in 2020 and 2021 

* Multiple occurrences of the same extreme in selected dataset. First occurrence listed.