USGS Water-Year Summary for Site 01479000

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	Available Parameters
	00010 Temperature, water(Mean,Min.,Max.)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Mean,Min.,Max.)

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

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USGS Water-Year Summary 2023

01479000 WHITE CLAY CREEK NEAR NEWARK, DE

LOCATION - Lat 39°41'57.2", long 75°40'30.1" referenced to North American Datum of 1983, New Castle County, DE, Hydrologic Unit 02040205, on left bank, 0.4 mi downstream from the Baltimore and Ohio Railroad bridge, 1.1 mi downstream from Pike Creek, 3.8 mi east of Newark, and 5.0 mi upstream from mouth.

DRAINAGE AREA - 89.1 mi².

REVISIONS HISTORY -

WSP 1051: 1933(M).

WSP 1382: 1932, 1934.

WDR MD-DE-83-1: 1978-82(P).

https://nwis.waterdata.usgs.gov/nwis/peak/?site_no=01479000: 2004.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1931 to September 1936, June 1943 to September 1957, October 1959 to current year. Monthly discharge only for some periods, published in WSP 1302.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 7.86 ft above North American Vertical Datum of 1988 and 9.00 ft above National Geodetic Vertical Datum of 1929. Nov. 17, 1931 to Apr. 7, 1976, at site 0.5 mi upstream at gage datum 11.87 ft above National Geodetic Vertical Datum of 1929.

REMARKS -

Water Year 2022: Records good, except those for estimated discharges, which are poor.

Water Year 2021: Records good, except those above 1,000 ft^3/s for the period of June 14 to October 28 and those for estimated discharges, which are poor.

Water Years 2017-2020: Records good, except those for estimated discharges, which are poor.

Water Years 2014-2016: Records good, except those for estimated daily discharges, which are poor.

Water Year 2013 and prior years' accuracy statements can be found in Annual Water Data Reports.

Flow affected by the City of Newark municipal water treatment plant upstream from the station and by periodic withdrawals to maintain storage in the City of Newark's pumped storage reservoir. U.S. Geological Survey satellite data-collection platform at station.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage known, 23 ft, previous site and gage datum, in July 1937 (probably affected by backwater from railroad bridge which has since been raised and widened), from information by Baltimore & Ohio Railroad.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: October 2018 to current year. WATER TEMPERATURE: October 2018 to current year.

COOPERATION - Funding for water-quality collection is provided the United States Geological Survey.

INSTRUMENTATION - Multi-parameter water-quality monitor, October 2018 to current year.

REMARKS -

Missing data due to equipment malfunction.

EXTREMES FOR PERIOD OF DAILY RECORD -
TEMPERATURE: Minimum: -0.2 °C, multiple days throughout period of record, Maximum: 30.0°C, July 22, 2020.

SPECIFIC CONDUCTANCE: Minimum: 65 microsiemens/cm, August 4, 2020; Maximum 2,500 microsiemens/cm, January 16, 2022.