Thirty Years of Interweaving Environmental Law and Science

Meet Earl Hagström

With over 30 years of experience in environmental, citizen suit, and toxic tort litigation Earl is uniquely equipped to assist clients in solving the complex legal and scientific issues that arise in multi-party soil and groundwater contamination litigation. He is ranked in the top 5 percent of Northern California environmental attorneys and spent eight plus years working as a petroleum exploration and development supervisor for Phillips Petroleum and British Petroleum.


Earl earned his J.D. from the University of San Francisco in 1990 where he served as President and Public Program Director for the Environmental Law Society. In 1978 he graduated magna cum laude from the University of Rhode Island with a Master of Science degree in Sedimentation and Stratigraphy. In 1976 he earned a B.A. in geology from Boston University where he also Chaired Boston University’s delegation to the Harvard Model United Nations Program.

Earl is frequently invited to share his insights through public speaking engagements and published articles. Engagements and articles include legal and economic issues related to groundwater quality and contamination, CERCLA, RCRA and the Clean Water Act as well as PFOAs and PFASs and liabilities associated with reuse of produced water from oil and gas operations.


Earl has been a long suffering Boston Red Sox fan, suffering that was thankfully relieved in 2004 and a few more times since then.

Latest Blogs

Earl Hagstrom


In West Virginia v. EPA (June 30, 2022), the Supreme Court ruled In a 6–3 decision that Congress did not grant the EPA the authority

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Science &
Environmental Law

Today’s environmental issues require expertise that can only be obtained with a seasoned understanding of both the sciences and the complex system of Federal and State environmental laws and regulations. Earl Hagström was an Exploration Geologist for Phillips Petroleum’s Frontier Exploration Group (now Conoco-Phillips) (1978-1982) and an Exploration and Operations Supervisor for British Petroleum’s North Alaska Group (1982-1986). He holds a B.A. in Geology from Boston University (1976), a M.S. in Sedimentation and Stratigraphy, magna cum laude, from the University of Rhode Island (1978) and a J.D. from the University of San Francisco (1990).

His knowledge and experience in the fields of hydrology, chemistry and geology combined with over three decades of  environmental litigation and administrative law in conjunction with his attention to client driven outcomes makes Mr. Hagström the clear choice for your environmental legal needs.

Areas of Expertise

Environmental Litigation

Groundwater and Soil Contamination

Risk Assessment and Allocation

Eminent Domain

Water Quality

Hazardous Waste

Thirty Years of Interweaving Environmental Law and Science


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