Portland Bureau of Environmental Services
(City of Portland) Clean Rivers Education
Focus: Water Quality
1. Protect water quality (manage storm water)
2. Water treatment after human use
Test temperature, dissolved oxygen (DO), and pH of tapwater in classroom
Data Table for test results goes in notebook
Example test results:
Temperture - 70 degrees F
Dissolved Oxygen - 8 ppm
pH - 7
Water Chemistry Lab: Students test a water sample for temperature, dissolved oxygen, and pH. Students provide evidence to support claims about the quality of the water. A follow up field trip allows students to conduct investigations and analyze data to assess the health of local water bodies.
Portland didn’t have a water treatment plant until 1952; before that it was dumped into the Willamette River!
Five different watersheds in Portland area:
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