USGS Water-Year Summary for Site 03447687

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	Available Parameters
	00010 Temperature, water(Mean,Min.,Max.)
	00060 Discharge(Max.,Min.,Mean)
	00065 Gage height(Max.,Min.,Mean)
	00095 Specific cond at 25C(Mean,Max.,Min.)
	00300 Dissolved oxygen(Min.,Mean,Max.)
	00400 pH(Min.,Max.,Med.)
	63680 Turbidity, Form Neph(Min.,Max.,Mean)

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

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USGS Water-Year Summary 2023

03447687 FRENCH BROAD RIVER NEAR FLETCHER, NC

LOCATION - Lat 35°25'45", long 82°33'09" referenced to North American Datum of 1983, Henderson County, NC, Hydrologic Unit 06010105, on right bank 30 ft downstream of bridge on Secondary Road 1419, 0.4 mi downstream from McDowell Creek, 2.9 mi west of Fletcher, and at river mile 165.3.

DRAINAGE AREA - 640 mi².

REVISIONS HISTORY -

WDR NC-04-1: 2001-2003 (annual maximum discharges).

Gage datum was revised on October 01, 2020, based on an error in the determination of the gage datum.

SURFACE-WATER RECORDS

PERIOD OF RECORD - July 2001 to current year.

GAGE - Data collection platform. Elevation of gage is 2,032.8 ft above NAVD of 1988. Satellite telemetry at streamgage.

REMARKS - Gage-height records are generally good. Discharge records are generally good except for estimated discharges, which are fair. Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-nc_nwisweb_data_inquiries@usgs.gov.

WATER-QUALITY RECORDS

PERIOD OF RECORD - May 2019 to current year.

COOPERATION - The water quality aspect of this site is run in cooperation with the NC Department of Transportation.

INSTRUMENTATION - This site is run using YSI EXO3 multiparameter sondes that are swapped between continuous monitor and field monitor approximately every two months. The sondes are calibrated in the Asheville Field office. Upon swapping the sondes calibration checks are completed within 24 hours of swapping sondes. All calibration techniques are derived from the USGS National Field Manual for the Collection of Water-Quality Data as well as manufacturer recommendations.

REMARKS - Station operated to define water-quality characteristics in the French Broad River Basin.

EXTREMES FOR PERIOD OF RECORD -

Maximum Temperature:  26.5° C; August 25, 2023 ; Minimum Temperature: 0.2° C; December 26, 2022

Maximum Specific Conductance: 114 µs/cm; January 19, 2022; Minimum Specific Conductance: 20 µs/cm; January 11, 12, 2024

Maximum Dissolved Oxygen: 13.5 mg/L on December 26, 2022; Minimum Dissolved Oxygen: 5.3 mg/L on August 20, 2021

Maximum pH: 7.5 standard units; August 23, 24, 2023 ; Minimum pH: 6.0 standard units on Sept. 13, 2020, August 16, 18, 2021.

Maximum Turbidity: 511 FNU on August 14, 2021; Minimum Turbidity: 0.9 FNU on February 07, 2021