Tyler Rice's chemistry class started their field trip at Toppenish Creek near campus then followed it to Granger, stopping near Mud Lake. The class then sampled the Yakima River both downstream of Toppenish Creek at the Satus wildlife area and upstream at Granger Park. They followed the Yakima River upstream to Zillah for a final stop and discussion about human impacts on the Yakima River. At all five sites student teams recorded dissolved oxygen, conductivity, turbidity, pH, temperature and flow rate. Samples were also taken back to class for further analysis of nitrate, ammonium, and calcium ions..
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