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Maricopa boil water advisory: what happened and what to do next time.
On October 7, 2026, Global Water Resources’ Santa Cruz Water Company issued a precautionary boil water advisory for its customers in the City of Maricopa after two preliminary tests indicated possible E. coli. Follow-up tests came back negative, and the advisory was canceled on October 8.
What happened
Who was affected?
Santa Cruz Water Company customers in the City of Maricopa (Pinal County), served by Global Water Resources.
The City of Maricopa does not operate the water utility; it shared the notice.
Was E. coli confirmed?
No. Two preliminary tests suggested possible E. coli; follow-up samples tested by an outside lab were negative.
The utility said it issued the advisory “out of an abundance of caution.”
Is the advisory still in effect?
No. It was canceled on October 8, 2026. Global Water said no further boiling is needed.
Check Global Water Resources or the City of Maricopa for any new notices.
Sources: City of Maricopa; FOX 10; KJZZ; AZFamily; KTAR
If there’s a boil water advisory, do this
Boil water for one minute
Bring water to a rolling boil for at least one minute and let it cool before drinking, cooking, making ice, brushing teeth or washing dishes. Bottled water is fine too.
Boil it even if you have a filter
The CDC says to boil tap water even if it is filtered, including home filters and filter pitchers.
That includes water softeners, carbon filters and reverse osmosis systems. They aren’t a substitute for following an advisory. Don’t use ice or water from a refrigerator connected to the water line until the advisory ends.
After it’s lifted
Follow your utility’s instructions and your equipment manufacturer’s guidance for filters.
Global Water said no special precautions were needed for home filters beyond the manufacturer’s guidelines.
Sources: CDC: boil water and filters; CDC boil water advisory toolkit; AZFamily
Everyday water vs. an emergency
A boil water advisory is a utility emergency, and boiling or bottled water is the answer. Home water treatment is about everyday water quality: hardness, chlorine taste and dissolved solids. Happy Tap serves Maricopa and the surrounding area. If you’d like to know what’s in your water on a normal day, book a free water test.