The contractor should remove all the aerators on your faucets and flush all household
Continue to use bottled water or use a filter that is certified to reduce lead in water.
Replacing a lead service line can loosen lead in your household plumbing and increase
your risk of lead exposure for a few months.
Continue to flush the water and clean the aerators in your home weekly, then monthly
After replacing your lead service line, the contractor is required to systematically flush all the fixtures inside your house before leaving your home. They will remove and clean all the aerators on the fixtures in your home and ensure that any lead particulates or sediment released during construction is flushed out of your household plumbing before you use your
water for any purpose.
After your lead service line is replaced, lead can still release into your plumbing from
construction disruption and other plumbing components containing lead. Continue to use bottled water or filtered water for all water used for consumption, including drinking and cooking water.
Once you find aerators are typically clear of
debris you can reduce the cleaning and flushing frequency to monthly and eventually reduce to once every 6 months.
If you use a filter for all your drinking and cooking water, make sure you replace the filter cartridges according to the manufacturers instructions. Do not run hot water through the filter.