What type of analysis is performed to assess lead in drinking water?

The correct approach to assess lead in drinking water involves water sampling and laboratory analysis. This method is essential because it directly measures the concentration of lead present in the water supply. Laboratory analysis allows for accurate quantification of lead levels, which is crucial for determining whether the water meets safety standards set by regulatory agencies.

Visual inspection, while useful in identifying potential sources of lead contamination (like lead pipes or fixtures), does not provide a definitive measure of lead presence or concentration in drinking water. Community surveys can gather general information about water quality perceptions but cannot yield quantitative data on lead levels. Filter testing may not adequately assess lead, as it often tests for efficiency in removing contaminants rather than measuring the actual lead content present in drinking water. Thus, water sampling followed by laboratory analysis is the standard and most reliable method for accurately assessing lead levels in drinking water.