INSTRUCTIONS ATTACHED AS : "Virtual Lab Instructions pdf"
1. What contaminants were found in the lake water sample? What contaminants were found in the well water sample?
2. Why might lake and well water sample have different contaminants?
3. Which water sample had low pH level? What is pH level and how does it contribute to pollution? What chemicals are used in treating low pH levels?
4. Water in old building, tested recently, showed high levels of copper and iron, and low pH levels. Water test done 20 years before showed low pH levels but only minimal traces of copper and iron. If none of the new buildings on the same street showed copper and iron contaminants, but all had low pH levels, how might these water tests be explained?
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