Public Health

Staff Counsel

Prior to joining PEER, Colleen was an Assistant District Attorney for the Suffolk County District Attorney’s Office in New York. She has also worked, clerked, and interned for multiple government agencies and non-profits, including the United States Department of Justice, the Office of the New York State Attorney General, the Natural Resources Defense Council, and Defenders of Wildlife. Colleen also volunteered as a Park Interpreter with the National Park Service at Theodore Roosevelt Island in Washington, DC. Colleen received her law degree from Georgetown University Law Center, where she was the Vice President of the Environmental Law Society and Senior Notes Editor for the Georgetown Journal of Gender and the Law. She received her bachelor’s degree summa cum laude in International Affairs from The George Washington University’s Elliott School of International Affairs. Colleen enjoys backpacking and camping trips, playing board games, and reading mystery novels.

COMMENTARY | Don’t Let Plastics Overtake the Earth

by Colleen Zimmerman | April 22, 2023
We are recommitting ourselves to finding ways to rapidly reduce our dependence on plastics and their impact on the environment and human health ...

EPA Needs a Transparent Public Process for Inhance PFAS SNUNS

by PEER | April 20, 2023
Unclear comment and review deadlines, heavy redactions, and disorganized files are blocking meaningful comments on alarming PFAS risks ...

Gold Mine Expansion OK Shows Broken Air Permit Process

by PEER | April 13, 2023
Colorado Refuses to Fix Major Underlying Flaws in Approving New Permit ...

COMMENTARY | Letter to the EPA: Take Action on “Devil’s Bargain” Pesticides

by Peter Jenkins | March 27, 2023
The environment needs protection from neonic-coated seeds, which are by far the broadest pesticide/insecticide application across the country ...

Organizations Push to Get PFAS out of Plastic Containers

by PEER | March 23, 2023
EPA must ban fluorination process that creates PFAS in plastics ...