Lead and Copper Service Line Survey 

In January 2017, the Illinois Environmental Protection Agency amended the Illinois Environmental Protection Act to include a mandate for operators of community water systems in the State of Illinois to create a comprehensive service line inventory. This inventory must account for the total number of service lines in the system, the number of lead service lines in the system, and the number of lead service lines replaced the previous year. Moving forward, this inventory must be updated and submitted on or before April 15th of each year. 

In an effort to expedite the inventory process, the Village of Western Springs encouraged residents to fill out the Lead and Copper Service Line Survey web form. The web form is designed for those residents that are already aware of the material composition of their service line, as it contains little to no instruction. The results of the 2018 service line survey are as follows: 

Total # of Service Lines Unknown Service Lines Copper Service Lines Lead Service Lines
4,787 2,357 2,308 122
Service Line Diagram

The water department's goal over the next year is to greatly reduce the number of unknown service lines that still exist throughout the Village. If you are a resident of Western Springs and have not done so already, please fill out the Lead and Copper Service Line Survey web form

For those residents whom have not filled out the web form and are unsure of the material composition of their home's service line, the following instructions will help identify key characteristics of both lead and copper service lines. 

Instructions for identifying the material composition of your service line: 

Possible tools needed (some conclusions can be made by observation): 

  1. 1. a key/coin 
  2. 2. a refrigerator magnet
  • Locate the water service line coming in to the home. This is typically found in the basement or lowest level of the structure. An inlet valve and the water meter are installed on the pipe after the point of entry. The picture below may help to assist with locating the service line point of entry.
  • Identify a test area on the pipe between the point where it comes in to the home and the inlet valve. If the pipe is covered or wrapped, expose a small area of metal.
  • Use the edge of the key or coin to scratch through any corrosion that may have built up on the outside of the pipe. Do not use a knife or other sharp instrument and take care not to puncture a hole in the pipe. 

Lead Service Line 3

Picture above displays the typical inlet valve and meter. The entry point in 

this picture displays a characteristic solder "bulb" of a lead service line.

  1. Copper Service Line
  2. Lead Service Line

If the scraped area is copper in color, like a penny, your service line is copper. A magnet will not stick to a copper service line, either.