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Is Owasso, OK tap water safe?

4 utilities serve Owasso, by EPA’s records. Here is what EPA’s and Oklahoma’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

3 of the 4 utilities serving Owasso have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Oklahoma’s records: Rogers Co RWD # 3 Lake Plant, Owasso and Collinsville.

Washington Co RWD #3 (New,#1), which serves the most people here, has nothing above a health goal in EPA’s and Oklahoma’s records. That data covers what its report lists, not everything.

A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Owasso’s ZIP codes, from EPA’s estimates.

Water testing near Owasso

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Oklahoma certifies.

TapBuff hasn’t read Oklahoma’s list of certified labs yet. The national page links every state’s own list.

Certified labs, state by state

ZIP codes in Owasso

Which ZIP codes are in Owasso: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology.

Near Owasso

Towns nearby with a page of their own.

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