Chemical Pollution in Water

     In our experiment, we tested for Chromate, Carbonate, Chloride, Iron(III), Sulfate, Lead, and Phosfate. We tested the ions first as a control group, to see how it looks when the tests positive. We also tested our school's water fountain and tap water from Fairchance. The water from the fountain came out negative each time, and so did the water from Fairchance. I was in some ways surprised that everything came back negative. I guess I was hoping for something interesting to happen. I didn't really expect the tested waters to be polluted.