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John H. Klock

John H. Klock

Director, Environmental

Mr. Klock is certified by the New Jersey Supreme Court as a civil trial attorney who has tried, among the 60 completed trials he has handled, numerous environmental and construction cases. He handles contract drafting for remediation contracts and other complicated construction projects. His work in the environmental transactional area includes wetlands, Toxic Substance Control Act (TSCA), Resource Conservation and Recovery Act (RCRA), Clean Water Act (CWA), The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), Clean Air Act (CAA), Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and Occupational Safety and Health Administration (OSHA) issues. In 2017, he was named “Litigation – Environmental Lawyer of the Year” (Newark, NJ) by Best Lawyers®.

Prior to his legal education, Mr. Klock was an engineer with the Port Authority of New York and New Jersey, working on the construction of the “bathtub” or hydrogeologic barrier on the original World Trade Center. He also worked on many other construction projects.

Areas of Focus

Environmental Remediation

Mr. Klock utilizes his engineering background to handle complex environmental remediation projects including those under the Brownfield Site Remediation Act, where he has drafted construction contracts and agreements with remediation contractors, treatment works, and transporters. He has interfaced with regulators at the United States Environmental Protection Agency, the New Jersey Department of Environmental Protection, and New York State Environmental Conservation as well as other state regulators, on these projects, which he has brought to successful conclusion.


In the construction area, Mr. Klock has litigated cases involving construction projects for major corporate facilities in New Jersey, New York, Texas, Louisiana, and Michigan concerning matters alleging design defects, construction defects, and delay damages. He has also represented contractors and subcontractors in many similar matters.


In the condemnation area, Mr. Klock has represented numerous governmental entities and private companies. For example, he has been eminent domain and environmental counsel to New Jersey Schools Development Authority in Essex, Passaic, Hudson, Mercer, and Union Counties, involving acquisition of lands for high schools, middle schools, and elementary schools. He has also represented New Jersey Meadowlands Commission as counsel in similar mixed environmental/eminent domain valuations, with complex environmental problems. He has also represented many private parties in condemnation matters.

The scope of his representation often includes relocation of tenants and businesses. Relocations have been done under the federal relocation act when federal law has been in play, such as in matters involving HUD tenants. Thus, Mr. Klock has had to comply with the Uniform Relocation Assistance and Real Properties Act. He has had many state property owners relocate under the New Jersey Relocation Assistance Act. Some of the relocations have been quite complex, including, for example, a medical business employing dialysis units and a large plant providing most of the squid supplied to the eastern United States. While many properties were negotiated, several were submitted to Condemnation Commissioners and jury trials for valuation. In addition, Mr. Klock has filed cost recovery actions for condemnors after remediation of the properties.



Rutgers School of Law - Newark (J.D.)

  • Managing Editor, Rutgers Law Review, 1976

St. Bonaventure University (B.A., magna cum laude)

New York University (M.A., Linguistics)

Professional Admissions

State of New Jersey

State of New York

United States District Court for the District of New Jersey

United States District Court for the Southern District of New York

United States District Court for the Eastern District of New York

United States District Court for the Northern District of New York

United States District Court for the Western District of New York

United States Court of Appeals for the Second Circuit

United States Court of Appeals for the Third Circuit

Supreme Court of the United States

Professional Activities

United States Supreme Court Historical Society, 1991-present

New Jersey State Bar Association
Section on Environmental Law

New York State Bar Association
Section on Environmental Law

American Bar Association
Section on Natural Resources, Energy, and Environmental Law
Section on Construction Law

Certified Civil Trial Attorney, Supreme Court of New Jersey
Board on Trial Attorney Certification, 1981-present

Judicial Clerkship(s)

Mr. Klock clerked for the Honorable Harold A. Ackerman.

Civic/Charitable Activities

Scotch Plains Historical Commission (review proposals to develop historical properties)

Arbitrator, District VA Fee Arbitration Panel of Supreme Court of New Jersey

Director, Northern New Jersey Council, Boy Scouts of America

Legal Employment

Law secretary to the Honorable Harold A. Ackerman, Chancery Division, New Jersey Superior Court, 1976-1977