Which regulation focuses specifically on preventing exposure to Giardia?

The Surface Water Treatment Rule is specifically designed to protect public health by addressing the treatment of drinking water sources that are surface water or groundwater under the influence of surface water. This regulation focuses on the removal or inactivation of pathogens, including microorganisms such as Giardia lamblia, which can cause gastrointestinal illnesses when present in drinking water.

The rule establishes criteria for the treatment of surface water to ensure that harmful pathogens are effectively removed or killed, thereby minimizing the risk of waterborne diseases. One of the key components of the rule is the requirement for effective filtration and disinfection of surface water supplies, which directly targets threats posed by giardia and similar pathogens.

Other regulations mentioned, such as the Lead and Copper Rule, focus more on the toxicity of metals in drinking water, while the Total Coliform Rule is aimed at monitoring fecal contaminants without specifically addressing individual pathogens like giardia. The Fluoride Regulation pertains to the control and addition of fluoride in water, which is unrelated to pathogen control.

Thus, the emphasis of the Surface Water Treatment Rule on pathogen removal clearly highlights its role in preventing exposure to Giardia and other waterborne pathogens in drinking water systems.