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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
01412150 MAURICE RIVER AT BIVALVE, NJ
LOCATION - Lat 39°13'57", long 75°01'58" referenced to North American Datum of 1983, Commercial Township, Cumberland County, NJ, Hydrologic Unit 02040206, on four-pile structure adjacent to dock at Long Reach Marina in Bivalve, 1.1 mi south of Port Norris, and 1.4 mi northeast of Delaware Bay.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Annual maximum tide, October 1964 to September 1985. Unpublished fragmentary gage-height record, May 1997 to February 2000. Continuous-record tide gage, March 2000 to current year.
GAGE - Tide elevation and water temperature recorder with telemetry and tidal crest-stage gage. Datum of gage is at 0.00 ft NAVD of 1988. To determine approximate elevations to NGVD of 1929, add 1.20 ft. From October 1964 to September 1985, crest-stage gage located 0.3 mi downstream at datum 0.00 ft NGVD of 1929. Data published to NGVD of 1929 can be adjusted to NAVD of 1988 by subtracting 1.20 ft. Online annual tidal peaks have been adjusted to present datum.
REMARKS - Periods of missing data are noted by dashed (---) lines.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum elevation known, 6.6 ft, adjusted to present datum, Nov 25, 1950, from high-water marks at East Point near the mouth of the Maurice River based on data published in the Corps of Engineers' report "Flood Plain Information, Tidal Lands and The Maurice River, Cumberland County, New Jersey" published Dec 1968.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 7.03 ft, Oct 29, 2012, from crest-stage gage; minimum elevation, estimated,-5.8 ft, Mar 9-10, 2008 and Jan 9, 2009, although a lower tide elevation likely occurred during the period of missing record on Feb 17, 2007.
WATER-QUALITY RECORDS
PERIOD OF RECORD - CONTINUOUS DATA: Water Temperature, July 2021 to current year. Specific Conductance, July 2021 to current year.
REMARKS - The accuracy of continuous water-quality data can be found here
EXTREMES FOR PERIOD OF RECORD - Maximum water temperature, 31.4 deg C on July 24, 2022; minimum water temperature -1.1 deg C, many days.
Maximum specific conductance, 37,100 uS/cm on Oct 10, 2022; minimum specific conductance, 5,013 uS/cm on Jan 15, 2024.
