Columbus, OH water quality
Columbus, OH is served by 19 public water systems, serving 1,338,424 people combined. Across those systems, we count 6 health-based violations in the last 5 years. The worst Tap Grade among them is C.
Water systems serving Columbus
COLUMBUS PUBLIC WATER SYSTEM
COLUMBUS, OH · 1,305,946 served
BEXLEY CITY PWS
BEXLEY, OH · 14,250 served
SANITARY DISTRICT #4
COLUMBUS, OH · 8,575 served
OBETZ VILLAGE PWS
OBETZ, OH · 3,167 served
TIMBERLAKE WATER SYSTEM
COLUMBUS, OH · 1,600 served
OBETZ SATELLITE 6 PWS
OBETZ, OH · 1,317 served
OBETZ SATELLITE 2 PWS
OBETZ, OH · 1,267 served
COSMOS MYSTERY AREA
RAPID CITY, SD · 600 served
GALLOWAY WATER SYSTEM PWS
COLUMBUS, OH · 350 served
LEONARD PARK PWS
COLUMBUS, OH · 266 served
OBETZ SATELLITE 3 PWS
OBETZ, OH · 200 served
SOUTHEAST CONSERVATION CLUB - CAMPGROUND
COLUMBUS, OH · 200 served
OBETZ SATELLITE 4 PWS
OBETZ, OH · 175 served
OBETZ SATELLITE 1 PWS
OBETZ, OH · 151 served
OASIS OF LOVE COMMUNITY CHURCH
COLUMBUS, OH · 120 served
AMVETS POST 1312 PWS
COLUMBUS, OH · 100 served
SOUTHEAST CONSERVATION CLUB - CLUBHOUSE
COLUMBUS, OH · 75 served
STIMMEL PROPERTIES LLC
COLUMBUS, OH · 40 served
THE GARDEN INN PWS
COLUMBUS, OH · 25 served
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Is Columbus, OH tap water safe to drink?
19 public water systems serve Columbus, OH, with 6 health-based violations in the last 5 years across them. The worst Tap Grade among them is C.
Does Columbus's water have lead in it?
The most recent 90th-percentile lead sample is 1.8 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in Columbus's water?
Yes — at least one water system serving Columbus has detected PFAS under UCMR5.
Source: EPA SDWIS/ECHO · Data as of 2026Q2