LeadPipeLookup

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GREEN BAY WATERWORKS

PWSID WI4050356

Serves approximately 107,369 people in Wisconsin from surface water.

Last verified from Utility LCRR inventory: 2026-04-14
Known lead
0
Galvanized
0
Unknown
0
% unknown

GREEN BAY WATERWORKS Lead Service Line Inventory

GREEN BAY WATERWORKS serves approximately 107,369 people in Wisconsin. Like all US water utilities, it is required by federal law to identify and report on lead service lines—the pipes that connect the water main in the street to homes and buildings.

What is a lead service line?

A lead service line is the pipe that brings water from the street into your home. If your house was built before 1986, there's a meaningful chance your service line contains lead. Lead dissolves into water, especially if the water is acidic or sits in the pipes for hours. Even small amounts of lead exposure can affect children's development.

What does GREEN BAY WATERWORKS report?

As of now, GREEN BAY WATERWORKS has not yet completed a full inventory of its lead service lines. The utility is required by the EPA's Lead and Copper Rule to map all service lines and categorize them as lead, galvanized (which may contain lead), or non-lead. This is a multi-year effort for most utilities.

Status: GREEN BAY WATERWORKS is in the process of building its inventory. You can contact the utility directly to ask about their timeline and whether they have tested or identified service lines in your neighborhood.

What should you do right now?

If you're concerned about lead in your water:

  • Contact GREEN BAY WATERWORKS with your address and ask whether your service line has been identified or tested. Request a copy of the inventory results when they're available.
  • Get your water tested if you have young children or are pregnant. A simple test costs $20–50 and tells you whether lead is present in your tap water right now.
  • Use a certified filter (NSF/ANSI 53 certified for lead reduction) on your drinking water while you investigate.

For health questions about lead exposure, speak with your pediatrician or contact the CDC at 1-800-CDC-INFO.

Next steps for residents

  • Call GREEN BAY WATERWORKS and ask for your service line status and the utility's current inventory completion date
  • Request a free or low-cost water test from your local health department
  • If lead is detected, install a point-of-use filter on taps used for drinking and cooking
  • Check back on this site periodically; we'll update information as GREEN BAY WATERWORKS completes its inventory

Key figures

Total inventoried lines0
BIL/IIJA funding received
Replacement plan statusNot reported
Utility's LCRR inventoryNot provided

Frequently asked

Does GREEN BAY WATERWORKS have lead in the water?

GREEN BAY WATERWORKS is still completing its lead service line inventory and has not yet reported full results. Whether lead is in your water depends on whether your home has a lead service line and your water's chemical properties. The only way to know is to get your water tested.

How do I find out if my house has a lead service line?

Contact GREEN BAY WATERWORKS directly with your address and ask them to check their records or inspection data. You can also look at your home's inspection report if you have one, or hire a plumber to inspect the line where it enters your house.

Is it safe to drink tap water from GREEN BAY WATERWORKS?

The safest way to know is to get your tap water tested for lead. In the meantime, you can use a certified filter (NSF/ANSI 53) on drinking and cooking water. If you have young children or are pregnant, testing is especially important.

When will GREEN BAY WATERWORKS finish mapping its lead service lines?

Contact the utility directly to ask about their timeline. Federal law requires completion by specific deadlines, but the schedule varies by utility size and how many lines need to be identified.