There are several ways to minimize lead exposure if your water is contaminated – or until you find out for sure.
1. First you will want to refrain from consuming water that has been in contact with your home’s plumbing for more than six hours, like overnight or during your work day. “Flush” the cold water faucet – by allowing the water to run until it becomes as cold as it will get. You should do this for each drinking water faucet – taking a shower will NOT flush the kitchen tap. Flushing is important because the longer water is exposed to lead pipes, the greater possibility of lead contamination.
2. Second, you do not want to cook with or consume water from the hot-water tap. This is because hot water dissolves lead more quickly than cold water. If you need hot water, draw cold water from the tap and heat it on the stove. Again, only use flushed water from the cold water tap!
3. If you use a public water system, make sure to contact your supplier to ask if the supply system contains lead piping and whether your water is corrosive. If either answer is yes, ask what steps are being taken to deal with the problem of lead contamination. The plant can treat drinking water to make it less corrosive.
4. If you own a well (or another water source) you can treat the water to make it less corrosive using corrosion control devices like calcite filters or other devices. You might ask your health or water department for assistance in finding these commercially available products.