Jonathan Spergel

Practice Areas

Corporate and Commercial Transactions

Corporate Compliance and Other Regulatory Programs

Data Centers

PFAS and Emerging Contaminants

Site Development and Brownfields Redevelopment

Superfund and Site Remediation

Sustainability and ESG

Waste

Water

Career

Jonathan Spergel is the immediate past managing partner of Manko, Gold, Katcher & Fox LLP in Bala Cynwyd, Pennsylvania, the environmental and energy law firm with which he started his legal career in 1993. He handles a wide variety of environmental legal issues, including the environmental aspects of commercial transactions and brownfields sites, environmental insurance procurement and coverage issues, public funding opportunities, regulatory compliance counseling, and litigation for commercial, industrial, residential, and individual clients. From September 2001 to February 2003, Jonathan served as general counsel of O'Neill Properties, a regional real estate development company that focused on the redevelopment of brownfield sites.

Professional Memberships

Admitted in Pennsylvania and New Jersey;

Montgomery County Redevelopment Authority - Board Member, since 2006; Chairman, since 2013;

Publications

Act 2 Changes Anticipated in 2026

MGKF Special Alert - 2026 Pennsylvania Forecast - January 20, 2026

NJDEP Has Begun Issuing Requests for Information Directly to LSRPs

MGKF Special Alert - November 14, 2025

New Jersey Proposes “Dirty Dirt” Regulations

MGKF Special Alert - March 10, 2025

Act 2 Changes Anticipated in 2025

MGKF Special Alert - 2025 Pennsylvania Forecast - January 17, 2025

NJDEP Publishes Proposed Amendments to its Site Remediation Program

MGKF Special Alert - December 6, 2024

MGKF Podcast

Environmental Insurance Policies -- Are You Covered for PFAS?

January 3, 2023

Personal

Legacy Youth Tennis and Education (formerly Arthur Ashe Youth Tennis Center)

Board Chair, 2020-2025

Board Member, since 2012

City Avenue Special Services District - Board Member, since 2012

Education

Awards