County · Georgia
Columbia County, Georgia: drinking water records
This overview covers 5 ZIP codes and 11 community water systems in Columbia County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Columbia County GA0730000 | 124,763 | 240 | 1 | 3 | 3.2 ppb |
| Grovetown GA0730001 | 18,464 | 0 | 0 | 0 | 0 ppb |
| Port Bass I (Sc3750002) SC3750002 | 681 | 0 | 0 | 0 | 0 ppb |
| Timber Lake I (Sc3750006) SC3750006 | 283 | 0 | 0 | 0 | 0 ppb |
| Lake Bradford Estates MHP FL1370791 | 180 | 0 | 0 | 0 | 0.3 ppb |
| Port Bass II (Sc3750012) SC3750012 | 165 | 0 | 0 | 0 | 0 ppb |
| Windy Acres Mobile Home Park GA0730017 | 162 | 0 | 0 | 0 | 1.6 ppb |
| Martinez Water Assoc. GA0730010 | 150 | 0 | 0 | 0 | 1.2 ppb |
| Pineneedle Community Living GA0730022 | 150 | 0 | 0 | 0 | 0 ppb |
| Timber Lake II (Sc3750007) SC3750007 | 93 | 0 | 0 | 0 | 2 ppb |
| Mobile City Mobile Home Park GA0730020 | 87 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Columbia County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.