USGS Water-Year Summary for Site 01482695

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	Available Parameters
	00010 Temperature, water(Max.,Mean,Min.)
	00065 Gage height(Tid.,Tid.)
	00095 Specific cond at 25C(Max.,Mean,Min.)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

01482695 C AND D CANAL NR DELAWARE CITY, DE

LOCATION - Lat 39°33'14.6", long 75°37'07.9" referenced to North American Datum of 1983, New Castle County, DE, Hydrologic Unit 02040205, on north shore of canal, 2 mi southwest of Delaware City, 3 miles from entrance to Delaware Bay, 14 miles from entrance to Elk River.

SURFACE-WATER RECORDS

PERIOD OF RECORD - November 2019 to current year.

GAGE - Water-stage recorder and velocity meter. From November 6, 2019, through August 26, 2020, water-stage recorder only. Datum of gage is 0.00 ft above North American Vertical Datum of 1988.

REMARKS -

Water Years 2020-2024: Gage-height record fair and discharge record poor.

Water Year 2019: Gage-height record good.

This is a tidal discharge station. Flow at this site is significantly affected by astronomical tides. Discharge is computed from relations between stage versus area and index-velocity versus mean channel velocity. The Godin low-pass filter is used to remove principal tidal frequencies from unit values. Daily mean discharges were computed from filtered unit value discharge data. Positive discharge is to the east towards the Delaware River and negative discharge is to the west towards the Chesapeake Bay. U.S. Geological Survey satellite data-collection platform at station.

EXTREMES FOR PERIOD OF RECORD - Maximum recorded elevation: 6.23 ft, October 29, 2021; Minimum recorded elevation: -4.86 ft, February 04, 2023. Maximum discharge (unfiltered): 126000ft³/s, January 10, 2024; Minimum discharge (unfiltered): -151000 ft³/s, October 27, 2021.

WATER-QUALITY RECORDS

PERIOD OF RECORD - November 2019 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: November 2019 to current year. WATER TEMPERATURE: November 2019 to current year.

INSTRUMENTATION - Multi-parameter water-quality monitor, November 2019 to current year.

REMARKS - Occasional missing record due to instrument malfunction.

EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 31.51°C, July 17, 2024; minimum, -0.33°C, February 24, 2025. SPECIFIC CONDUCTANCE: Maximum, 23,000 microsiemens/cm, October 5, 2022; minimum, 197 microsiemens/cm, March 22, 2024.