Environmental Practice Areas

• Negotiation of administrative orders and permit amendments to resolve multi-state EPA enforcement proceeding under the new source review provisions of the Clean Air Act and applicable State Implementation Plans
• Successful mediations of disputes with EPA, potentially responsible parties, and insurers concerning allocation and payment of oversight and response costs at major Superfund site
• Strategic oversight of response actions, and prosecution and defense of related cost-recovery suits, at two of the largest vapor intrusion sites in Massachusetts
• Investigation and self-disclosure of wastewater and air emissions issues identified in connection with acquisition of New York manufacturing facility
• Successful claim for indemnification under corporate asset purchase agreement concerning EPA notice of responsibility at New England Superfund site
• Negotiation of environmental terms in asset and stock purchase agreements, real estate acquisition agreements, and leases in multiple transactions and jurisdictions
• Defense of multisite enforcement investigation regarding compliance with conditional declassification and beneficial use determinations for management of solid waste
• Leadership role in administrative process for amending Massachusetts regulations and guidance to address vapor intrusion, source control, and non-aqueous phase liquids

• The American College of Environmental Lawyers
• The American Bar Foundation

Greg is consistently ranked in the top tier of environmental lawyers by:

• Chambers USA: America’s Leading Lawyers for Business; and 
• U.S. News-Best Lawyers, which selected him as Boston’s “Lawyer of the Year” for Environmental Law in 2016 and Environmental Litigation in 2019

In 2018, in recognition of his many years of litigation and other pro bono work, the Buzzards Bay Coalition presented Greg with its highest honor:

• The Buzzards Bay Guardian Award

• “Flint Inspires Renewed Vigilance for Lead in Drinking Water,” EBA News/Winter Journal (2017)
• “MassDEP Issues Sweeping Amendments to Mass. Contingency Plan,” Banker & Tradesman (March 2014)
• “A Wider Play of Shale: A Hydraulic Fracturing Primer,” RESource (January 2014)
• “Getting the Green Light from FTC for Green Claims,” Law360 (November 2013)
• “Promoting Sustainability Can Create Value for PE Firms,” Law360 (November 2012)
• “Structuring the Transaction to Allocate Environmental Liability,” Environmental Aspects of Real Estate and Commercial Transactions (2011)
• “New ASTM Standard Provides Limited Tool for Assessing Vapor Intrusion Risks,” Daily Environment Report (September 2008)
• “New Rules Require Accounting for Future Environmental Costs,” The Metropolitan Corporate Counsel (April 2007)
• “Ashtabula River Restoration Project Establishes New Federal Funding Precedent,” Daily Environment Report (November 2006)
• “The Environmental Protection Agency May Reopen Institutional Controls at Completed Sites,” Real Estate Finance (October 2005)
• “Increased Scrutiny of Indoor Air Pathway Shifts Investigation & Cleanup Standards,” Toxics Law Reporter (November 2005)
• “All Appropriate Inquiry Standard Will Create Substantive New Requirements For Phase I Environmental Site Assessments,” The Metropolitan Corporate Counsel (April 2004)
• “Contaminated Sediments: Are There Alternatives to Superfund?,” Natural Resources & Environment (Fall 2003)
• “Disclosing Environmental Liabilities In the Wake of Sarbanes-Oxley,” The Metropolitan Corporate Counsel (April 2003)

• Vapor intrusion: science, law, and strategy
• New Massachusetts regulations and guidance for waste site cleanup
• Trying environmental and land use claims
• Lessons learned from recent environmental suits against lenders
• Potential benefits and pitfalls of emerging new diligence technologies