St. Louis lifts precautionary boil water advisory for North and South City

The City of St. Louis lifted a precautionary boil water advisory at 10:32 a.m. on July 1, 2026 for parts of North City and South City after testing showed the water was safe to consume.

The advisory was issued June 30 after a pump unexpectedly tripped offline at the Chain of Rocks Water Treatment Plant, which caused low water pressure in part of the system. City officials said the alert was precautionary and tied to pressure loss, not a confirmed contamination event.

Where the advisory applied

The affected area was limited to two parts of the city, not a citywide boil order. In North City, the notice covered Hamilton Heights, Kingsway West, and Wells-Goodfellow. In South City, the advisory covered Hi-Pointe, Clayton-Tamm, Cheltenham and Kings Oak, Franz Park, The Hill and Southwest Garden, Ellendale, Clifton Heights and North Hampton, Tower Grove South, South Grand and Gravois Park, Tower Grove East, Compton Heights, Shaw, and Benton Park West.

The city’s neighborhood pages for Hamilton Heights and Shaw line up with those North City and South City areas, underscoring that the advisory reached specific neighborhoods rather than the entire service area.

How the city cleared it

After the pressure issue was addressed, the Water Division ran multiple tests on samples taken in the affected areas. The city said those tests verified the water was not contaminated and was safe to drink. Once that result came back, the advisory was lifted.

For residents, the practical takeaway is simple: the boil notice is over, and no boiling is needed now. Anyone who had been conserving water or boiling it during the advisory can return to normal use.

Utility alerts like this can move quickly, especially when pressure drops trigger a precautionary response. The city’s Public Utilities news page is the best place to check for future service notices that affect a specific neighborhood or part of the system.

Sources

• St. Louis Water Division boil water advisory lift notice