just yards from the old Mercer Rubber site and Sayen Park, state officials admitted to concerned residents that their findings reported in the Public Health Assessment are incomplete. The study did not include testing of groundwater or include data from residents who moved away or those who were diagnosed with cancer before 1979. See also List of botanical gardens in the United States References External links Sayen House and Gardens - Hamilton Township Arboreta in New Jersey Botanical gardens in New Jersey Hamilton Township, Mercer County, New Jersey Parks in Mercer County, New Jersey Houses in Mercer County, New Jersey