Elam and Popoff Engineering Assoc., Glen Rock, NJ No description specified. 1-2 (2 Records) Documents Archaeological and Historical Cultural Resources Survey of the Peckman River Wastewater Treatment Plant Extension in Verona, Essex County, New Jersey (1981) Archaeological Survey (E.I.S.) of the Proposed Sanitary Sewer System Stage I - Mahwah Proper , Mahwah, Bergen County, New Jersey (1975)