3a

pH!
The sight with the lowest amount of pH was the Mexico sample number three with an average of 6.57 pH. The sample that had the highest pH was the Mexico sample number one with an average of 7.3 pH.

DO!
All the sights had the same dissolved oxygen measurement of an average of 4 ppm.

Temp!
The sample with the coolest water was the Mexico sample number one with an average of 20.3 degrees Celsius. The warmest water sample was Mexico sample number three with an average of 21.57 degrees Celsius.

Nitrates!
Mexico sample number two had the highest number of nitrates with an average of 15 ppm. The sample with the lowest number of nitrates was water sample number five with an average of 0 ppm.