Annual Public Open House

A chance to meet the community

Disposing of old Open House samples

For our Open House each year, we test hundreds of water samples from throughout Portland for just $1 each!
We also test other samples, such as plants, food, and soil. The analyses for these samples are not state-accredited to determine water or food safety, but are entertaining and educational.
To the right, one of our laboratory technicians disposes of old samples from the previous Open House.


Explore the links below to learn more