USGS Water-Year Summary 2024
01412350 Delaware Bay at Ship John Shoal Lighthouse NJ
LOCATION - Lat 39°18'19.5", long 75°22'35.6" referenced to North American Datum of 1983, Cumberland County, NJ, Hydrologic Unit 02040204, at Ship John Shoal lighthouse.
SURFACE-WATER RECORDS
PERIOD OF RECORD - March 2021 to current year.
WATER-QUALITY RECORDS
PERIOD OF RECORD - March 2021 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: March 2021 to current year. WATER TEMPERATURE: March 2021 to current year. DISSOLVED OXYGEN: March 2021 to current year.
COOPERATION - Funding for water-quality data collection is provided by the United States Geological Survey.
INSTRUMENTATION - Multi-parameter water-quality monitor at two depths, March 2021 to current year.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE (LOWER): Maximum, 29.8°C, first occurrence on July 24, 2020; minimum, 0.1°C, first occurrence on January 30, 2022.
WATER TEMPERATURE (UPPER): Maximum, 30.1°C, first occurrence on July 24, 2022; minimum, 0.0°C, first occurrence on January 30, 2022.
SPECIFIC CONDUCTANCE (LOWER): Maximum, 39,200 µS/cm on multiple dates; minimum, 4280 µS/cm on April 10, 2022.
SPECIFIC CONDUCTANCE (UPPER): Maximum, 39200 µS/cm on October 4, 2022; minimum, 3570 µS/cm on April 10, 2022.
DISSOLVED OXYGEN (LOWER): Maximum, 15 mg/L, first occurrence on March 2, 2022; minimum, 4 mg/L, first occurrence on July 14, 2021.
DISSOLVED OXYGEN (UPPER): Maximum, 15.1 mg/L, first occurrence on March 2, 2022; minimum, 4.4 mg/L, first occurrence on July 15, 2023.