1. Distribution of treated-wastewater constituents in pore water at a pond-bottom reactive barrier, Cape Cod, Massachusetts Yale Public content 2009. 2009-11-09T18:19:34Z. 2012-04-23T20:09:32Z. McCobb, Timothy D. U.S. Dept. of the Interior, U.S. Geological Survey. English. Public. Massachusetts, Cape Cod, and Ashumet Pond (Mass.).