Safest Drinking Water in Georgia 2026
Georgia has 5 public water systems serving 3,937,410 people. The safest system is Gwinnett Co. Dept. of Water Resources in Lawrenceville with a score of 100/100.
Top 5 Water Systems in Georgia
| # | Water System | City | Pop. Served | Source | Violations | Score |
|---|---|---|---|---|---|---|
| 1 | Gwinnett Co. Dept. of Water Resources | Lawrenceville | 975,000 | Surface water | 0 | A (100) |
| 2 | Cobb County | Marietta | 695,000 | Surface water | 0 | A (100) |
| 3 | Dekalb County | Decatur | 743,000 | Surface water | 0 | A (94) |
| 4 | North Fulton County | Alpharetta | 434,517 | Surface water | 0 | B (82) |
| 5 | Atlanta | Atlanta | 1,089,893 | Surface water | 5 | F (10) |
Water quality data for Georgia is sourced from the EPA Safe Drinking Water Information System (SDWIS), which tracks compliance for all public water systems.
Frequently Asked Questions
Gwinnett Co. Dept. of Water Resources in Lawrenceville has the highest Water Safety Score in Georgia at 100/100 (Grade A), serving 975,000 people.
Georgia has 5 public water systems serving 3,937,410 people. The average Water Safety Score is 77/100.
The Water Safety Score (0-100) is based on health violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Higher scores mean cleaner, safer water.
Water Safety Score: health violations (40%), contaminant exceedances (30%), enforcement history (20%), monitoring violations (10%).
The this entity category groups every U.S. public drinking-water safety entity sharing this attribute. The list above is the data; the paragraphs below explain what the grouping means against the broader the EPA Safe Drinking Water Information System (SDWIS) distribution and how to read the relative rankings within the category.
For readers using this category as a starting point, the per-entity detail pages linked from the table above carry the underlying the EPA Safe Drinking Water Information System (SDWIS) data in full. The category-level view is the filter; the per-entity pages are the actual answer.
Source: EPA Ground Water and Drinking Water, 2026.