CDPH Lead Inspector/Assessor California State Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the CDPH Lead Inspector/Assessor Exam in California with our comprehensive quiz. Master key concepts through interactive questions and detailed explanations. Pass your exam confidently!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the procedure for collecting a second draw water sample?

Let the water run for 10 minutes after the first draw
Let the water run for 15 minutes after the first draw
Collect it immediately after the first draw
Let the water run for 30 minutes after the first draw

The correct answer is: Let the water run for 15 minutes after the first draw

To collect a second draw water sample accurately, it's essential to represent the water's quality after a certain amount of time has passed since the last sample was taken. Allowing the water to run for 15 minutes is a standard procedure designed to ensure that the water being tested isn't stagnant and has had sufficient time to clear any sediments or contaminants in the plumbing system. The extended run time allows for the sample to better reflect the lead concentration from the source rather than from any deposits in the pipes. This helps ensure that the result is more indicative of regular water usage conditions in a household or building, making it a reliable measure for assessing potential lead contamination levels. In this context, other options suggest varying run times that are either shorter or longer than the recommended duration, which could result in collecting a sample that does not accurately reflect the conditions typically encountered during daily use.