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Broken Arrow, OK · 142,122 people served · EPA data 2021–2026

Tap water quality in Broken Arrow, Oklahoma

Broken Arrow's water systems logged 29 health-based EPA violations in 2021–2026, most recently in 2025 — most often long term 2 enhanced surface water treatment rule. Health-based violations mean a federal limit or treatment standard was exceeded; check the systems below and your utility's annual report for specifics.

FFailing
Broken Arrow water grade: F
Failing — our A–F grade from this city's EPA compliance record, relative to Oklahoma and the nation. How we grade →
Health-based violations, 2021–202629
Long Term 2 Enhanced Surface Water Treatment Rule16
Tthm8
Surface Water Treatment Rule4
Interim Enhanced Surface Water Treatment Rule1
Broken Arrow Municipal Authority116,330 served
Wagoner Co. Rwd #425,792 served
Oklahoma quality rank#51 / 51 (72.6/100)
Oklahoma avg hardness210 PPM (very hard)
Want to know what's actually in your Broken Arrow water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

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Broken Arrow tap water FAQ

Is tap water safe to drink in Broken Arrow?

Broken Arrow's systems logged 29 health-based violations in 2021–2026, most commonly long term 2 enhanced surface water treatment rule. A violation is a red flag for a period of time, not a permanent condition — your utility's current Consumer Confidence Report shows today's status, and a certified home test shows what's at your tap.

Who supplies Broken Arrow's water?

Broken Arrow Municipal Authority (serving about 116,330 people); Wagoner Co. Rwd #4 (serving about 25,792 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Broken Arrow?

City-level hardness isn't published in a single federal dataset, but Oklahoma averages 210 PPM — "very hard" on the USGS scale. Your utility's water quality report lists Broken Arrow's exact hardness, or a $10 test strip tells you in a minute. If it comes back over 120 PPM, see our water softener guidance in the purification calculator.

Do I need a water filter in Broken Arrow?

With 29 health-based violations on record in 2021–2026, a certified filter is reasonable insurance here: reverse osmosis ($150–$1,300 installed, Angi 2026) covers lead, nitrates and PFAS at the tap. Test first ($50–$200) so you buy for what's actually present.

Want to know what's actually in your Broken Arrow water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

Test your water at home

We may earn a commission if you request quotes through this link. It costs you nothing and never affects the data we publish.