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Water-Year Summary for Site 04213000

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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.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
LOCATION - Lat 41°55'37", long 80°36'15" referenced to North American Datum of 1927, Ashtabula County, OH, Hydrologic Unit 04120101, on right bank at downstream side of Keefus Road bridge at Conneaut, and 6.4 mi upstream from mouth.
DRAINAGE AREA - 175 mi².
REVISIONS HISTORY - WSP 714: 1926. WSP 784: 1933. WSP 1437: 1923-25(M), 1926-30, 1931-32(M), 1933, 1935(M). WSP 1912: Drainage area. Water discharge May 17, 2020, 4490ft³/s.
PERIOD OF RECORD - July 1922 to December 1935, March 1950 to September 1961 (published as "at Amboy"), October 1961 to current year.
GAGE - Water-stage recorder. Datum of gage is 608.31 ft (NAVD 88). Previously, datum of gage was 609.31 ft (NAVD 1988), and datum of gage was 610.3 ft (NGVD 1929), unadjusted. Prior to Aug. 17, 1924, nonrecording gage at same site and datum.
REMARKS - WY 2015; Records fair, except for estimated record which is considered poor. Oct. 1, 2015 to Aug. 15, 2017; Records fair, except for estimated daily discharge, which is poor. Aug 16 to Nov 28, 2017; Records poor.Nov 29, 2018 to Oct 23, 2018; Records fair, except for estimated discharge, which is poor.   Water-quality and sediment data formerly collected at this site.

Record quality ratings will not be included in the water-year summary for approved records newer than 09/30/2019. Record quality is still being rated internally. For questions about record quality ratings, please send email to gs-w-oh_NWISWeb_Data_Inquiries@usgs.gov.