What type of sample is categorized as a lead and copper sample?

Lead and copper samples are classified as Point of Use (POU) samples because they are taken at specific locations where water is consumed, such as taps or faucets in homes and businesses. This type of sampling is significant for assessing the levels of lead and copper exposure that consumers face directly, as these metals can leach into drinking water from plumbing systems and fixtures, particularly in areas with older infrastructure.

Taking samples at the point of use is essential for accurately determining the concentration of lead and copper in the water that people drink, thereby helping water utilities monitor compliance with regulations and take necessary actions to mitigate any health risks associated with these contaminants. By focusing on the specific points where water is used, POU samples provide a realistic assessment of water quality as experienced by consumers.