Digital-simulation and projection of head changes in the Potomac-Raritan-Magothy aquifer system, coastal plain, New Jersey

Abstract

-modeT was used fo-sTmuTafe ffie-response of the system to pumping stresses during the 18-year period, 1956-73. model was used to compute projected potentiometric heads and trends to the year Three sets of conditions were simulated:(1) no increase in extrac-(2) continued growth in ground-water extractions at the rate of 3 percent ; and (3) continued growth in ground-water extractions at the rate of 3 percent , 1n tion with the activation of a freshwater head barrier in the freshwater transition zone. Under the first set of conditions, further head reduction would cease over very within two years. Under the second set of conditions, the broad cone of ion would broaden and Heads would range from 60 to 160 feet below NGVD th declines after 1973 90 feet in some areas. The resultant would accelerate the movement of salty water toward centers.If a freshwater head barrier were constructed across a 5-mile in Gloucester, Camden, and Counties, the total rates of ection would range from about 56 cubic feet per second in year 1984 to about 95 cubic per second in year 2000. Barrier rates would be to about 20 of the water Document Analysis a. Descriptors