1. Hydrology of the unconfined aquifer system, Rancocas Creek area, Rancocas, Crosswicks, Assunpink, Blacks, and Crafts Creek Basins, New Jersey Yale Public content 2002. 2003-06-09T19:27:49Z. 2011-03-03T23:23:52Z. U.S. Geological Survey. English. Public. New Jersey and Rancocas Creek Watershed.