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Is Nichols Hills, OK tap water safe?

2 utilities serve Nichols Hills, 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

1 of the 2 utilities serving Nichols Hills has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Oklahoma’s records: Nichols Hills.

Oklahoma City, which serves the most people here, has 1 result above EPA’s health benchmark. The worst: Lithium at 67.8 ppb, above EPA’s health benchmark. A health benchmark is a level EPA screens with, not a legal limit.

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 Nichols Hills’s ZIP codes, from EPA’s estimates.

Water testing near Nichols Hills

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 Nichols Hills

Which ZIP codes are in Nichols Hills: 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 Nichols Hills

Other towns in Oklahoma County with a page of their own.

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