Not GP, but I found a local water testing company that offered a lead test kit. They gave me a jar with instructions. I brought back the jar full of water colle

Not GP, but I found a local water testing company that offered a lead test kit. They gave me a jar with instructions. I brought back the jar full of water collected according to the instructions and they sent it in to a lab. The hardest part was not running water from any tap or toilet for 10 hours before drawing the test water. Living in an older house it's been totally worth it to test for lead in the usual places so we can be aware of our exposure risks, and also to have our blood tested periodically for lead to make sure we've been successful avoiding it.