Mandan Working to Identify Lead Water Service Lines

In-Home Inspections of 'Unknown' Pipe Materials Begins in February

Jan. 20, 2026 - More than 3,600 Mandan water utility customers will likely receive a visit from water pipe inspectors in 2026.

The second phase of Mandan’s water service line inventory kicks off in February. It is the continuation of a State of North Dakota and U.S. Environmental Protection Agency initiative to “get the lead out” of drinking water pipes. Every water system in the United States is required to complete a service line inventory of all public and private pipes, as required under the EPA’s Lead and Copper Rule Improvements (LCRI). Water systems must also develop a plan to replace lead and galvanized pipes.

The first phase of this project identified 4,250 water service lines as lead, copper, plastic, or galvanized steel, but approximately 3,658 lines remain unknown.

What Do I Need to Do? If you recently received a letter indicating that the material of your water service line is classified as unknown, you can:

  • Visit https://bit.ly/MandanPipes to self-complete a test of your service line, complete an inventory survey, and upload a photo, or
  • Call 701-532-2370 to schedule an in-home inspection.

Do I Need to Have an Inspection? If your water service line is classified as “unknown,” and you are unable to complete the self-test online, an inspector will need to verify the material of your pipe with an in-home inspection.

From February through August this year, representatives from Mandan’s consulting firm, AE2S, will conduct inspections. These may be scheduled by calling the number above, or may be “drop-by” visits.

The names and photos of the inspectors assigned to Mandan can be viewed at cityofmandan.com/lcrr, along with additional information on this project. Inspectors will have photo identification badges, clothing, and vehicles marked with the AE2S logo. Each inspection should take less than 10 minutes to complete.

Funding for Mandan’s LCRI assistance is provided through a contractual agreement between the North Dakota Department of Environmental Quality Drinking Water State Revolving Fund and AE2S, a local engineering firm. The City of Mandan is committed to partnering with its utility customers to ensure their water is lead-free. Learn more at cityofmandan.com/LCRR.

The public is invited to a town hall on Thursday, February 5 at 5:30 p.m. in the Commission Room at Mandan City Hall to discuss this citywide inventory and upcoming service line inspections. Residents are encouraged to attend to learn more about this effort and what is required.