I got my test kits for lead direct from the
manufacturer. They are 9.99 each. I bought three of them and tested the water as it first came out of the tap, after letting it run for 1 minute, and then after letting it run for 5 minutes. Usually, in problem homes, the water that comes out after letting it run for 1 minute is the highest in lead level, because that is the water that was sitting in the supply pipe overnight, just soaking up the lead.