St. Louis Water Division Mails Lead Pipe Survey
Residents will receive letters asking them to identify whether their water service pipe is made of lead, as part of a federal mandate.
Updated on Nov. 6, 2026 in Utilities
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The City of St. Louis Water Division will send letters asking residents to identify whether their water service pipe is lead. The letters are the first phase of a federal lead mitigation mandate, and the city says its water is safe due to corrosion control at its treatment plants.
Why it matters
St. Louis is an old city with a significant amount of lead pipe, and the survey helps the Water Division build a picture of which service lines need attention. Residents who want to check their own pipe can use a simple magnet test before the letters arrive.
The Water Division has received reports of about 10,500 lead service lines, 1,000 galvanized lines, 30,000 copper lines and 60,000 lines of unknown material. Roughly 60,000 lines still have no identified material, so the full scope of lead exposure risk remains unresolved.
The players
City of St. Louis Water Division
The municipal utility that serves St. Louis residents and is conducting the service line survey and offering water testing.
The details
Residents can test their service pipe at home by using a magnet, which sticks to galvanized steel but not to lead. A scraped spot revealing a silver color indicates the metal beneath. Residents with serious concerns can request water testing from the Water Division.
Timeline
November 6, 2026: Article published and letters to residents announced as forthcoming in the mail.
Roadmap
The survey is the first phase of compliance with a federal lead mitigation mandate that requires utilities to inventory the materials of their service lines. Identifying lead, galvanized and unknown lines is a prerequisite for the replacement work that follows.
Residents who receive the letter should check their records or test their pipe with a magnet and reply with accurate information. Homeowners with lead or galvanized lines may face future replacement work and should watch for Water Division notices.
The takeaway
Checking your own service pipe takes only a magnet and a moment, and sending accurate information helps the city plan lead replacement across St. Louis.
Further reading
For more on local water systems, see St. Louis Utilities coverage.
Source note: This article includes information reported by Fox2Now.
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