Cincinnati, OH water quality
Cincinnati, OH is served by 15 public water systems, serving 822,301 people combined. Across those systems, we count 1 health-based violation in the last 5 years. The worst Tap Grade among them is B.
Water systems serving Cincinnati
CINCINNATI PUBLIC WATER SYSTEM
CINCINNATI, OH · 750,200 served
NORWOOD CITY PWS
NORWOOD, OH · 19,870 served
INDIAN HILL CITY PWS
CINCINNATI, OH · 15,000 served
WYOMING CITY PWS
CINCINNATI, OH · 9,700 served
READING CITY PWS
READING, OH · 9,506 served
CINCINNATI VA MEDICAL CENTER
CINCINNATI, OH · 4,152 served
TRIHEALTH GOOD SAMARITAN HOSPITAL
CINCINNATI, OH · 4,000 served
LOCKLAND VILLAGE PWS
LOCKLAND, OH · 3,486 served
GLENDALE VILLAGE PWS
GLENDALE, OH · 2,500 served
CINCINNATI CHILDRENS HOSP IONIZATION SYS
CINCINNATI, OH · 1,514 served
CINCINNATI CHILDRENS MED CENTER COL HILL
CINCINNATI, OH · 722 served
FOUR SEASONS MARINA
CINCINNATI, OH · 615 served
UC HEALTH MEDICAL CENTER SCIS
CINCINNATI, OH · 558 served
THE ROOT BEER STAND
SHARONVILLE, OH · 270 served
UC HEALTH RIDGEWAY TOWER
CINCINNATI, OH · 208 served
Get alerted when Cincinnati's water gets a violation
Alert emails are in development; once they launch, we'll only email you about this water system. Unsubscribe anytime via contact@tapgraded.com.
Worried about what's in your tap?
See which water filters are certified to remove the contaminants found in your area.
Find a filter that matches your waterFrequently asked questions
Is Cincinnati, OH tap water safe to drink?
15 public water systems serve Cincinnati, OH, with 1 health-based violation in the last 5 years across them. The worst Tap Grade among them is B. A Tap Grade summarizes public EPA compliance records; it is not a determination that water is safe or unsafe to drink.
Does Cincinnati's water have lead in it?
The most recent 90th-percentile lead sample is 2.1 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in Cincinnati's water?
Yes — at least one water system serving Cincinnati has detected PFAS under UCMR5.
Source: EPA SDWIS/ECHO · Data as of 2026Q2
TapGraded presents public EPA data for information only — it is not health advice and not a determination that any water is safe or unsafe to drink. For health concerns, contact your water utility or local health department.