99
Excellent
City-wide average score
117
Systems serving this city
2
With PFAS detected (UCMR5)
2
Above an EPA PFAS limit
0
Unresolved health violations
Across all community water systems EPA records map to Columbia. PFAS figures are from EPA UCMR5 (2023–25) monitoring; not every system was sampled.
Community water systems serving Columbia
COLUMBIA CITY OF (SC4010001)~319,500 people served 36› WEST COLUMBIA CITY OF (3210004)~34,028 people served 49› CAYCE CITY OF (SC3210003)~17,460 people served 56› BGWC I-20 (SC3250012)~6,637 people served 78› LIEBER CORRECTIONAL INSTITUTE (1870050)~1,646 people served 100› BGWC OAKLAND PLANTATION (SC4350006)~1,180 people served 100› BGWC GLENN VILLAGE II (SC3250058)~1,116 people served 100› ROLLING MEADOWS MHP (3260027)~1,056 people served 100› BGWC NEVITT FOREST (SC0450007)~966 people served 100› BGWC RAINTREE ACRES (SC4050015)~799 people served 100› MACDOUGALL CORRECTIONAL INST (SC0870050)~790 people served 100› BGWC CHARWOOD S/D (3250035)~683 people served 100› BAY CAPITAL WATER WORKS (SC4050031)~647 people served 100› BGWC FOXWOOD (SC4650008)~570 people served 100› BGWC VANARSDALE S/D (3250027)~509 people served 100› BGWC WINTERCREST (SC4650017)~503 people served 100› BGWC ROLLINGWOOD (SC3250052)~493 people served 100› BGWC LAKEWOOD ESTATES (SC3250005)~492 people served 100› BGWC CHARLESWOOD S/D (4050008)~484 people served 100› BGWC HIDDEN VALLEY (SC3250073)~480 people served 100› BGWC HEATHERWOOD-BLUE RIDGE (SC3250015)~455 people served 100› BGWC THE LANDINGS (3250063)~430 people served 100› BGWC LEXINGTON ESTATES (SC3250050)~419 people served 100› BGWC WINDY HILL (SC3250057)~375 people served 100› BGWC INDIAN FORK-40 LOVE (3250066)~367 people served 100› BGWC BELLEMEAD S/D (3250031)~367 people served 100› BGWC COUNTRY OAKS (SC4650020)~359 people served 100› BGWC LANDS END CONDOS (SC3270300)~359 people served 100› BGWC FARROWWOOD ESTATES (SC4050012)~356 people served 100› BGWC STONEGATE (SC4050014)~352 people served 100› BGWC DUTCHMAN SHORES (SC3250021)~335 people served 100› BGWC LEXINGTON FARMS (SC3250069)~335 people served 100› BGWC POCALLA DEVELOPMENT (SC4350007)~327 people served 100› BGWC PARKWOOD S/D (3250029)~311 people served 100› BGWC CEDARWOOD (SC3250047)~300 people served 100› BGWC HARBORSIDE (SC3270302)~286 people served 100› BGWC FALCON RANCHES (SC3250016)~278 people served 100› BGWC TOWN CREEK (SC0450003)~275 people served 100› BGWC HAYNIE BUILDERS (SC0450063)~270 people served 100› BGWC BRIDGEWATER (SC0450033)~270 people served 100› BGWC PURDY SHORES (0150014)~268 people served 100› BGWC HIDDEN LAKE (SC0450072)~227 people served 100› BGWC CAROWOOD (SC4650035)~212 people served 100› BGWC OLYMPIC ACRES (SC4650053)~209 people served 100› BGWC OAKRIDGE HUNT CLUB (SC4050019)~208 people served 100› BGWC LAKE VILLAGE (SC3250054)~197 people served 100› BGWC DOBBINS ESTATE (SC0450058)~196 people served 100› BGWC CALHOUN ACRES (SC0450014)~196 people served 100› BGWC BROWN BOROUGH (SC4650061)~193 people served 100› BGWC SILVER LAKES-WINDWOOD (SC4650034)~191 people served 100› BGWC WASHINGTON HEIGHTS (SC4050013)~190 people served 100› BGWC LAKEWOOD (SC0450065)~183 people served 100› BGWC SHANDON (SC4650009)~183 people served 100› BGWC TROLLINGWOOD S/D (SC2350010)~180 people served 100› BGWC BELLE MEAD ACRES (SC0450016)~175 people served 100› BGWC RIDGEWOOD (SC4650031)~175 people served 100› BGWC SANGAREE MHP (SC3260012)~174 people served 100› BGWC HILL AND DALE (SC0450036)~173 people served 100› BGWC GREENFOREST (SC0450006)~173 people served 100› BGWC WOODBRIDGE (SC4650028)~173 people served 100›
Columbia water FAQ
How is Columbia's water quality scored?
PurityRadar computes a 0–100 score from public EPA records for the community water systems serving Columbia. The city-wide figure shown is the average of those systems.
Where does the data come from?
EPA SDWIS — the federal Safe Drinking Water Information System — covering active community water systems and their health-based violations. Every figure traces back to that public record.
Is this a substitute for testing my tap?
No. System-level data can't account for your home's own plumbing (lead service lines, fixtures). For health decisions, test your tap with a certified lab and confirm with your utility.