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The Reflection of Water Quality on the SFX Pond

Student(s):Piper Rohrbaugh
Grade Level:Middle School (grades 6-8, ages 11-14)
GLOBE Teacher:Amy Woods
Contributors:Chesapeake Bay Foundation, Adams County Conservation District
Report Type(s):U.S. Student Research Symposia (SRS)
Protocols:Dissolved Oxygen, Water Temperature, Water Transparency, pH
Language(s):
Date Submitted:05/30/2019
Presenting at the GLOBE NE and Mid-Atlantic SRS
This experiment was conducted by measuring the quality of the SFXCS pond using LaMotte pH, dissolved oxygen, and phosphate kits, an alcohol filled thermometer, and transparency tube. This experiment focused on the question, how do pH, dissolved oxygen, water transparency, phosphate, and water temperature relate and reflect a healthy aquatic environment? The hypothesis states that if overtime the pH, dissolved oxygen, phosphate, water transparency, and water temperature levels are tested in the pond, then the pH levels should range between 6 and 8, the dissolved oxygen should range from 4.0 mg/L to 10.0 mg/L, the phosphate levels should be no more than 0.1 ppm, the water transparency levels should be determined when the bottom of the tube is not seen, and the water temperature should stay between 0℃ to 32℃ because these levels reflect good water quality that should come from the trees that provide shade and oxygen and the high grass that keeps runoff from getting into the pond. All procedures were taken from GLOBE protocols and phosphate procedures were taken from the LaMotte kit. The data supported the hypothesis because through research, the levels fell within the accepted range of a healthy aquatic environment except for phosphate. Keywords: pH, dissolved oxygen, phosphate, water temperature, water transparency



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