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Manhattan, KS · 59,904 people served · EPA data 2021–2026

Tap water quality in Manhattan, Kansas

Manhattan's water systems logged 1 health-based EPA violation in 2021–2026, most recently in 2022 — a modest record, with revised total coliform rule the issue found. For context, Kansas's systems average 2.1 health-based violations each.

C-Fair
Manhattan water grade: C-
Fair — our A–F grade from this city's EPA compliance record, relative to Kansas and the nation. How we grade →
Health-based violations, 2021–20261
Revised Total Coliform Rule1
Manhattan, City Of54,763 served
Riley Co Rwd 12,108 served
Colonial Gardens Mobile Home Ct1,200 served
Riverchase Mobile Home Park460 served
Kansas quality rank#48 / 51 (76.1/100)
Kansas avg hardness250 PPM (very hard)
Want to know what's actually in your Manhattan 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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Manhattan tap water FAQ

Is tap water safe to drink in Manhattan?

Manhattan's systems logged 1 health-based violation in 2021–2026, most commonly revised total coliform 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 Manhattan's water?

Manhattan, City Of (serving about 54,763 people); Riley Co Rwd 1 (serving about 2,108 people); Colonial Gardens Mobile Home Ct (serving about 1,200 people); Riverchase Mobile Home Park (serving about 460 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Manhattan?

City-level hardness isn't published in a single federal dataset, but Kansas averages 250 PPM — "very hard" on the USGS scale. Your utility's water quality report lists Manhattan'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 Manhattan?

With 1 health-based violation 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 Manhattan 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.