What type of water testing is done for lead monitoring?

First draw sampling is the correct type of water testing for lead monitoring because it specifically measures the highest concentration of lead that may be present in drinking water. This method involves collecting the very first water that comes out of a tap after it has been sitting in the plumbing system for an extended period, typically overnight. Since lead can leach into water from plumbing fixtures and pipes, this approach allows for assessing the potential lead exposure in the water that users would typically consume.

This sampling method is crucial because it targets the lead that may accumulate in the plumbing system and is more indicative of the water quality when it is ready for consumption. Continuous monitoring and grab sampling do not specifically focus on lead levels in the same way and may not effectively capture localized sources of lead contamination. Aeration testing, on the other hand, is related to the removal of gases from water and is not relevant to lead monitoring. Therefore, first draw sampling is the most effective way to ensure safe drinking water in relation to lead content.