This is one of my favorite days at CSI Grade 4. After we tour Lake Somerville and learn how to care for public lands, we also tour where the City of Brenham gets its water. After the water leaves Lake Somerville, it travels through underground pipes to our City Water Treatment Plant. We don't travel through the pipes, but we visit the City Water Treatment Plant to see firsthand how our water is treated before it enters our homes. After this, we visited the Waste Water Treatment plant and learned how our water is cleaned after we have used it in many ways. It did not smell very nice at the Waste Water Plant, but we are glad that they are taking care of making our water clean for us. We met the microscopic bugs which help clean our water!
We collect water samples from Hogg Branch (which the wastewater treatment empties its water in to) and New Year's Creek, a neighboring creek and test the water for presence of nitrates, phosphates which can affect the amount of dissolved oxygen in the water.
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