Tri-City Ecology Center (TCEC) | Conservation, Preservation, Education

The natural environment of Fremont, Union City and Newark — like the rest of the Bay Area — is under intense developmental pressure. Rapid growth imperils habitats, from the hills to the Bay itself.

Founded in 1971, the Tri-City Ecology center (TCEC) is your local leader in advocating sound environmental policies that preserve and maintain unique natural resources, clean air, clean water, and a high quality of life.

Please join us in protecting our environment!

Remembering Donna Olsen (1931-2020)

It is with sadness and regret that we mourn the loss of Donna Olsen, an original organizer of the Tri-City Ecology Center in 1971. Donna served on the initial Board of Directors and continued to serve until her recent passing. She filled every position at some time, but her prime role for decades was to be the editor of Eco-Logic, TCEC’s monthly newsletter. She was respected as a community activist, an environmental leader, an opinion shaper and a model for others to emulate. She was a true gem of Fremont, and a part of its long history, and she will be sorely missed. Read more about Donna’s many contributions to TCEC and our community.