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Claremore, OK · 59,522 people served · EPA data 2021–2026

Tap water quality in Claremore, Oklahoma

Claremore's water systems logged 39 health-based EPA violations in 2021–2026, most recently in 2025 — most often total haloacetic acids (haa5). 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
Claremore 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, 2021–202639
Total Haloacetic Acids (Haa5)18
Tthm16
Lead And Copper Rule Revisions3
Interim Enhanced Surface Water Treatment Rule1
Claremore15,873 served
Rogers Co Rwd # 511,782 served
Rogers Co Rwd # 3 Cot Sta10,750 served
Rogers Co Rwd # 3 Lake Plant10,470 served
Oklahoma quality rank#51 / 51 (72.6/100)
Oklahoma avg hardness210 PPM (very hard)
Want to know what's actually in your Claremore 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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Claremore tap water FAQ

Is tap water safe to drink in Claremore?

Claremore's systems logged 39 health-based violations in 2021–2026, most commonly total haloacetic acids (haa5). 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 Claremore's water?

Claremore (serving about 15,873 people); Rogers Co Rwd # 5 (serving about 11,782 people); Rogers Co Rwd # 3 Cot Sta (serving about 10,750 people); Rogers Co Rwd # 3 Lake Plant (serving about 10,470 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Claremore?

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 Claremore'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 Claremore?

With 39 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 Claremore 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.