1. Maps of difference between groundwater contributions to base flow for the various recurrence intervals and groundwater withdrawals in the Neshaminy Creek Basin, Pennsylvania [microform] Yale Public content 1996. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Pennsylvania, Bucks County, Montgomery County, and Neshaminy Creek Watershed.