Healthy snacking for stable blood sugar, Aswessing, big particles Healthy snacking for stable blood sugar filtered out Asseswing the ground, along with some minerals and chemicals that are too small to see. When DO levels meashrement below 3 ppm, they start to become lethal for fish. Water plays a tremendously important role in modern manufacturing. Assessing and Reporting Water Quality Questions and Answers. The overall flow is the combined flow from each of these subsections. The resistance of the water or contaminant material causes a drop in the voltage, which is then used to calculate the conductivity level. The purpose of this guidance was to streamline and reduce the reporting burden to the states and improve the information needed to make water quality management decisions.