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SUMMARY ARCHIVES

Summary of November 2014 Monthly Hydrologic Conditions

Compiled in cooperation with the New Jersey Department of Environmental Protection
Provisional assessment of hydrologic conditions in New Jersey

November 2014

Map of New Jersey showing sites where hydrologic conditions are reported.

Precipitation was above normal at all three index stations for the reference period 1981-2010. Newark reported 4.13 inches, which is 113.15 percent of normal.  Atlantic City reported 5.37 inches, which is 164.22 percent of normal.  Trenton reported 4.20 inches, which is 126.89 percent of normal. Total precipitation over the past 12 months was: 49.04 inches at Newark, which is 2.79 inches above normal; 54.89 inches at Atlantic City, which is 13.14 inches above normal; and 44.29 inches at Trenton, which is 2.15 inches below normal.

Combined storage in the thirteen major water supply reservoirs as of November 30 was 45.801 billion gallons (56.6 percent of capacity), which is lower than the average November contents for the reference period 1961-1990.  The storage was 0.383 billion gallons higher than one month ago and 5.245 billion gallons lower than one year ago.  The thirteen major water supply reservoirs are as follows: Lake Tappan, Woodcliff Lake, Oradell Reservoir, DeForest Lake, Splitrock Reservoir, Boonton Reservoir, Canistear Reservoir, Oak Ridge Reservoir, Clinton Reservoir, Charlotteburg Reservoir, Echo Lake, Wanaque Reservoir and Spruce Run Reservoir.         

Streamflow was below the long-term monthly-mean for the reference period 1981-2010 at the South Branch Raritan River near High Bridge and Delaware River at Trenton index stations, but above the long-term monthly-mean at the Great Egg Harbor River at Folsom index station. The monthly-mean discharge at South Branch Raritan River near High Bridge was 53.7 ft3/s, 48.8 percent of the long-term mean.  The monthly-mean discharge of the Great Egg Harbor River at Folsom was 102 ft3/s, 142.3 percent of the long-term mean.  The monthly mean discharge of the Delaware River at Trenton was 3,781 ft3/s, 33.8 percent of the long-term mean. The observed daily mean discharge of the Delaware River at Trenton on November 30 was 5,090 ft3/s.

Groundwater levels, as measured in water-table observation wells for the month of November, were above normal at the Morrell 1 and Vocational School 2 index wells, but below normal at the Readington School 11 index well. Levels increased from last month at all three index wells. Levels were higher than one year ago at both the Morrell 1 and Vocational School 2 index wells, but lower than one year ago at the Readington School 11 index well.

Water-quality parameters collected from the Delaware River at Trenton exceeded the range of minimum historical monthly values for water temperature for the month of November. Water temperature ranged from 1.20 to 11.3 degrees Celsius. Dissolved oxygen ranged from 10.4 to 13.1 milligrams per liter. Specific conductance ranged from 228 to 272 microsiemens per centimeter at 25°C.

Note: The preceding data is preliminary and subject to revision.


All of the files listed below are in Portable Document Format (PDF) which can be viewed/printed with the Adobe Acrobat® Reader, freely available for most computer platforms.

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