Lead is not present in Crystal Lake’s groundwater or treated drinking water.
How Does Lead Enter My Drinking Water?
Lead primarily enters into drinking water through plumbing materials that are located between the water main in the street up to and including fixtures inside of a house. There are three primary sources that can result in lead leaching into drinking water:
- Lead Service Lines: A service line is the pipe that connects your house to the water main in the street. Some service lines that run from older homes, usually those built before 1960, are made from lead.
- Lead Solder: Solder used to fuse copper pipes together, prior to 1986, typically contained lead.
- Faucets and Fixtures: Lead can also corrode from metal faucets and fixtures made from brass, an alloy of copper and zinc that often contains lead impurities, including chrome-plated brass fixtures. Therefore, a home without lead containing solder or lead pipe may still have elevated lead levels due to brass fixtures. Prior to 2014, plumbing fixtures could contain up to 8% lead and be legally defined as “lead free”. But, since 2014, “lead free” refers to fixtures with a lead content of 0.25% or less.
In the early part of the 20th century, it was common practice to use lead pipes to connect homes and businesses to water mains under the street. Lead water service line installation generally stopped in the early 1950’s. Houses built after the 1960’s will typically have copper water service lines.