Challenge Soil and groundwater contamination was identified at this active municipal refueling station when a 6,000-gallon gasoline underground storage tank (UST) was removed in 1995 by others. Our project team became involved during the Remedial Investigation phase when we took over the project from another consultant. The station, necessary to refuel police and other municipal … Read more
GZA has provided engineering services for the design and structural remediation of four primary settling tanks at the Bergen County Sewerage Plant. These rectangular, reinforced concrete structures, measuring 35’ x 87.5’ and 10.5’ deep, hold wastewater. Challenge The tanks were originally constructed in the 1950s on timber piles which have since deteriorated. Tank #4 had … Read more
Under an on-call contract with the New Jersey Schools Development Authority (NJSDA) to provide Site Consultant Services, including K-12 school facility projects throughout the state, GZA has conducted numerous hazardous materials, environmental, flood hazard, and geotechnical engineering projects. Challenge In addition to protecting the health and safety of students, staff and administrators, collaboration with occupants, … Read more
Challenge A solar developer with significant success developing rooftop solar arrays in the New Jersey Community Solar Program sought GZA’s assistance to identify potentially suitable landfills, brownfields, or other known contaminated sites to expand into ground-mounted solar arrays. With over 13,500 potential sites in New Jersey, the developer knew they needed an automated way to … Read more
Challenge This 20-acre brownfield site straddled two townships, comprised two parcels separated by a railroad line, was adjacent to wetlands, and had been used for chemical manufacture and storage for 85 years. GZA was retained to close this complex New Jersey Industrial Site Recovery Act (ISRA) case which had been initiated prior to our clients’ … Read more
Canty’s Lake and Silas Condict County Park are popular destinations for fishing, picnicking, and hiking. Canty’s Lake Dam, located in the park, is a Class II – Significant Hazard dam that required major rehabilitation. Challenge The dam’s most critical deficiency was the significantly undersized existing spillway. The small spillway and lack of freeboard was not … Read more
Portions of the five-acre, industrial Classic Chemical site were developed as early as 1891. Historical operations – including cloth manufacturing and dying; leather dying and tanning; chemical manufacturing; and, most recently, paper sorting and recycling – left a legacy of contamination and regulatory concerns. Challenge To achieve regulatory compliance of this complex site under the … Read more
The State of New Jersey retained GZA to design repairs to the bulkhead along the Hudson River and the Liberty Walkway at the New Jersey Empty Sky Memorial. The walls of this symbolic structure, lined with the names of the 749 New Jersey residents who were killed in the 9-11 terrorist attacks, channel visitors’ views … Read more
Natco Lake Park is a heavily forested, 286-acre park in Hazlet Township, NJ, with diverse upland and wetland habitats and topography. Established in 1978 on the property of a former brick manufacturing site, it is connected to the nearby Raritan Bay via a tidal creek. Challenge The Township recognized the need for conservation management to … Read more
GZA is providing environmental services to the Borough of Leonia, NJ related to the redevelopment of several parcels for a new municipal building. The properties comprise the former Leonia Volunteer Ambulance Corps (LVAC) building, slated for demolition; a parking lot that serves multiple existing, adjacent borough buildings; and two adjacent former residential properties. Challenge Urgent … Read more
Challenge During repairs to the park’s canal lock, wetlands and wetland transition areas were impacted by placement of unconsolidated fill. GZA’s ecological services and environmental engineering were required to bring the site into compliance with the New Jersey Department of Environmental Protection (NJDEP) Bureau of Coastal & Land Use Compliance/Enforcement. GZA was also tasked with … Read more
