Here Amy is adding a color agent when testing for hardness. During this test, the sample turned from pink to blue. |
Tony is adding TISAB for the fluoride test. Tony is using a pipette "gun" to draw up and measure the liquids. |
This is the difference between (left) hard water and (right) soft water. The soft water is distilled water. Hard water was made by adding calcium carbonate to the distilled water. |
This is Paul and he is testing the water for cholorine. To measure for chlorine, you added powder to the sample that turned it pink. Then you put the vial into the machine and it shined light through the sample to measure the level of chlorine. |
One of the facility employees is showing a student how to do the hardness test by adding titrant. |
The water in the middle of the picture is the water we are about to test for chlorine and pH. This is one of the water samples that we collected. |
Adam is holding the samples that test for bacteria. We added a powder to the water and incubated them overnight at human temperature. None of our samples tested positive for bacteria. |
This is John doing a chloride test. John is adding titrant until it turns purple and then he measures the amount of titrant added to find out how much chlorine is in the water. |
Ryan is doing the hardness test. Hardness is not regulated, but it is tested because people do not care for water that is too soft or too hard. |

This page was created by YRA's sophomore class of 2004. |