Today was a wonderful experience. Teaching students in elementary school about factors that affect our water supply. Today the boys learned about how to take water samples properly. adding reagents and using more than one biological factor to determine an estimate value.

Great progress. The boys found that their water samples from the lake had a DO reading of 4ppm at a warter temperature of 18 degrees Celsius and using the nomagraph to determined the % saturation of Oxygen of their sample. it was 41%. Great job fellas

MJB