Plumbing and faucets

Your plumbing and faucets can be sources of lead.

Lead pipes

Plumbing done before 1930 used lead pipes. 

  • Lead from these pipes can seep into drinking water.
  • Minneapolis water forms a thin scale inside your pipes.
  • The thin scale prevents lead from seeping into your water.

 

Lead service lines

  • A service line is the water pipe that connects the water main on your street to the piping inside your home.
  • It connects to stop box on the exterior of your home. We use the stop box to turn your water on or off without entering your home.
  • In Minneapolis, service lines installed before 1930 usually used lead piping.
    • The part that extends from the water main to the stop box is lead.
    • The part that connects the stop box to the water meter is usually galvanized steel.

You are responsible for your service line

  • Property owners are responsible for maintaining water service lines.
  • You can't repair lead service lines. You can only replace them.  
  • To find out if you service line is lead, contact Utility Connections.

Contact the Minneapolis Public Works Utility Connections

Lead faucets

  • Most faucets purchased before 1997 were are brass or chrome-plated brass. They contain up to 8% lead.
  • Faucets purchased after 1997 have less or no lead.
  • If a faucet has NSF 61/9 stamped on its box, the faucet is lead-free. 

Read NSF/ANSI/CAN 61, Section 9: Mechanical Plumbing Devices

 

 

Corrosion

  • We take a many steps to prevent pipe corrosion
  • We follow of Department of Health guidelines, including:
    • Adding a chemical called ortho polyphosphate to your water.
      • This chemical prevents water line corrosion. 
      • We maintain an ortho phosphate concentration of 0.4 parts per million.
    • Reducing the acidity of the water from the Mississippi River.
      • We maintain a pH of 8.8 to 9.0 to keep the water from being corrosive.

Read the Minnesota Department of Health's 2019 report on eliminating lead in drinking water

Contact us

Public Works Water Treatment & Distribution Services

Phone

For water emergencies

612-673-5600

For water quality information

612-661-4999

Address

4300 Marshall St. NE
Fridley, MN 55421

This building is closed to the public.

Utility Connections

Public Works

Address

Minneapolis Public Service Building
505 Fourth Ave. S
Minneapolis, MN 55415