water quality testing

                                               Water quality testing lab report 


In science and technology class, we did water quality testing.  Water quality testing consists of several water tests such as testing the pH, dissolved oxygen, alkalinity, Po4, no3 and so on.

What we did for the dissolved oxygen test is this: we had a kit that came with a box of air tight ampules, each containing a small amount of yellow liquid in them.  It came with a plastic beaker as well.  We filled the beaker to the 25 ml mark and then proceeded to put the glass ampule in the beaker and broke the tip off of it. The ampule filled with water  immediately, and the yellow liquid turned blue when it came in contact with the oxygen in the water.
After waiting for two minutes, we compared the filled ampule with other tubes that were filled with a blue solution, and we identified the one that looked the most similar to it in shade.  The number under the tube tells us how many ppm's of oxygen it had.

 The pH, no3, Po4, and total alkalinity tests were all very simple as well.   All we did is use test strips that indicated what the number was, then dipped them in the sample of water, which in this case was my fish tank water.
Here are the test results we got:


total alkalinity: 80
No3: 50 ppm
Po4: 15 ppm
pH:8
dissolved oxygen: 7ppm



Mission creek turtle pond test
time of day 12:40
location: turtle pond  N49' 52.391  W49' 25.896
Recent percipitation: rained yesterday
air temperature: 18' C
water temperature 9' C
turbidity: NA
pH: 7
NO3:0
NO2:0
PO4:5
Alkalinity