Rancocas Creek Surficial Aquifer Study

Science Center Objects

Hydrology of the unconfined aquifer system, Rancocas Creek area:  Rancocas, Crosswicks, Assunpink, Assiscunk, Blacks, and Crafts Creek Basins, New Jersey

 

Groundwater budget (1986-95)
Water use data (1995)

Illustration of Groundwater interactions

Illustration of Groundwater and Surface water interactions

(Public domain.)

Land Surface System

P + Ras = Qdr + ET + Ws + Rn

Groundwater System

Rn + Rag = Wg + L + Qg

Where: Qg = Qb - Ras + Ws

List of Budget Components (in inches per year)

  • Precipitation (P) = 47.3
  • Direct Runoff (Qdr) = 6.38
  • Base Flow (Qb) = 12.73
  • Evapotranspiration (ET) = 25.9
  • Leakage (L) = 0.5155
  • Consumptive Water Use from surface-water withdraws (Ws) = 0.22
  • Consumptive Water Use from unconfined groundwater withdraws (Wg) = 0.056
  • Artificial recharge to the surface-water system (Ras) = 0.83
  • Artificial recharge to the unconfined groundwater system (Rag) = 0.1
  • Natural recharge to the aquifer (Rn) = 14.1
  • Groundwater discharge (Qg) = 12.1