USGS Water-Year Summary 2022

07241520 NORTH CANADIAN RIVER AT BRITTON ROAD AT OKLAHOMA CITY, OK

LOCATION - Lat 35°33'56", long 97°22'01" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.25, T.13 N., R.2 W., Oklahoma County, OK, Hydrologic Unit 11100302, on right downstream abutment of county road bridge, 3.8 mi downstream from Crutcho Creek, 4.0 mi west of Jones, and at mile 252.7.

DRAINAGE AREA - 13,688 mi² of which 3,497 mi² probably is noncontributing. from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated 10/01/2006 and Watershed Boundary Dataset dated 10/01/2006, using Albers Equal-Area Projection, North American Datum 1983.

REVISIONS HISTORY - WDR 2012: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1988 to current year.

GAGE - -Water-stage recorder. Datum of gage is 1110.01 above NAVD of 1988  determined by  GNSS Level II Survey using Alltera network with RTK Trimble R-10 tied to RM-1 by USGS Personnel on 07-31-2019. Prior to 07-31-2019 datum of gage was 1,109.40 ft above NGVD of 1929.

REMARKS - 10/01/2021- 09/30/2022: records fair with moderate wind affect. Flow regulated by Canton Lake (station 07238500) and Lake Overholser (station 07240500) where diversions are made into Lake Hefner Canal (station 07240000), and by several small dams in Oklahoma City. Low flow sustained in part by sewage effluent. Quality of data for other periods can be obtained by contacting the Oklahoma-Texas Water Science Center.

EXTREMES FOR PERIOD OF RECORD - Maximum stage 24.80ft, May 9, 1993. Maximum discharge 38,100 ft³/s , May 9, 1993. 

WATER-QUALITY RECORDS

PERIOD OF RECORD -

WATER TEMPERATURE: October 1988 to current year

SPECIFIC CONDUCTANCE: October 1988 to current year

pH: October 1988 to June 1991

DISSOLVED OXYGEN: October 1988 to current year

REMARKS -

Accuracy rating of the record for the 2022 Water Year:

WATER TEMPERATURE: Fair. Most of this period can be rated as good; however, the sensor was not checked against a NIST-certified thermistor within the year, so the accuracy has been downgraded to fair.

SPECIFIC CONDUCTIVITY: Fair; Most of this period can be rated as good; however, the temperature sensor was not checked against a NIST-certified thermistor within the year and SC measurements depend on temperature, so the accuracy has been downgraded to fair. Minor fouling and calibration drift corrections were applied throughout the year, in addition to some moderate magnitude corrections. Mostly small data gaps occurred in relation to equipment malfunctions and data deletions.

DISSOLVED OXYGEN: Poor; Some large fouling and few calibration drift corrections were applied consistently throughout the year. Additionally, the temperature sensor was not checked against a NIST-certified thermistor within the year and dissolved oxygen measurements depend on temperature. Efforts are being made by the QW team to increase the frequency of site visits to improve data quality and minimize fouling effects. 

Interruptions in record were due to malfunctions of the recording instrumentation or corrections to the data that exceeded allowable limits.

Quality of data for other periods can be obtained by contacting the Oklahoma-Texas Water Science Center.

EXTREMES FOR PERIOD OF RECORD -

WATER TEMPERATURE: Maximum 37.5°C on 8/7/2003; Minimum -0.5°C on 2/16/2007

SPECIFIC CONDUCTANCE: Maximum 3741 µS/cm on 7/16/2018; Minimum 22 µS/cm on 5/26/2001 

PH: Maximum 9.1 units on 6/27/1991; Minimum 6.3 units on 8/8/1989

DISSOLVED OXYGEN: Maximum 25.0 mg/L on 12/20/2000; Minimum 0.2 mg/L on 6/25/2002-6/29/2002 & 6/12/2006