Most groundwater is relatively free of suspended matter, but which parameter can be a major problem in surface water?

Most groundwater is relatively free of suspended matter, but which parameter can be a major problem in surface water?

• A. Turbidity
• B. pH
• C. Color
• D. Odor

Answer: (A)

Turbidity is the measure of suspended solids in water, and surface water naturally accumulates more of these particles from runoff, erosion, and decaying organic material. This makes turbidity a major issue because those particles are directly involved in how we treat surface water. High turbidity can hinder disinfection by providing protection for microbes, clog filters, and interfere with the coagulation and flocculation processes that help remove contaminants, leading to impaired water quality and more difficult treatment. Groundwater, by contrast, has generally been filtered through soil and rock, so it tends to be clear and low in suspended matter, which is why turbidity isn’t usually a problem there. Color and odor relate to dissolved substances and volatiles, and pH affects chemical dosing and corrosion, but they do not have the same immediate, direct impact on the physical removal of particles and the effectiveness of disinfection that turbidity does in surface water.

Turbidity is the measure of suspended solids in water, and surface water naturally accumulates more of these particles from runoff, erosion, and decaying organic material. This makes turbidity a major issue because those particles are directly involved in how we treat surface water. High turbidity can hinder disinfection by providing protection for microbes, clog filters, and interfere with the coagulation and flocculation processes that help remove contaminants, leading to impaired water quality and more difficult treatment.

Groundwater, by contrast, has generally been filtered through soil and rock, so it tends to be clear and low in suspended matter, which is why turbidity isn’t usually a problem there.

Color and odor relate to dissolved substances and volatiles, and pH affects chemical dosing and corrosion, but they do not have the same immediate, direct impact on the physical removal of particles and the effectiveness of disinfection that turbidity does in surface water.