We found 21 public water systems in Gwinnett county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Gwinnett Co. Dept. Of Water Resources | Buford | 795,657 | 24 | 7 |
| Lawrenceville | Lawrenceville | 30,000 | 39 | 16 |
| Ga Dot Rest Areas 75 & 76 | County of Gwinnett | 11,244 | 0 | 0 |
| Loganville | Loganville | 10,923 | 37 | 7 |
| Gwinnett Utilities-duluth | County of Gwinnett | 9,000 | 0 | 0 |
| Buford | Buford | 8,045 | 0 | 2 |
| Norcross | Norcross | 6,550 | 0 | 0 |
| Sugar Hill | County of Gwinnett | 4,000 | 0 | 0 |
| Dacula | County of Gwinnett | 2,217 | 0 | 0 |
| Suwanee | Suwanee | 916 | 0 | 10 |
| Greater Atlanta Christian Sch. | County of Gwinnett | 900 | 0 | 0 |
| Countryside Village | County of Gwinnett | 855 | 0 | 0 |
| Jones Mobile Home Park | County of Gwinnett | 800 | 0 | 12 |
| Grayson | County of Gwinnett | 700 | 0 | 0 |
| Norcross Mobile Home Village | County of Gwinnett | 543 | 0 | 42 |
| Usce Six Mill Creek W-070-1 | County of Gwinnett | 200 | 0 | 0 |
| Micromeritics | County of Gwinnett | 170 | 0 | 0 |
| Little Shoals Creek 1 Well | County of Gwinnett | 100 | 0 | 0 |
| Doraville, Ga. 30340 | County of Gwinnett | 45 | 0 | 0 |
| Usce Keiths Bridge W-059-2 | County of Gwinnett | 25 | 0 | 0 |
| Dawson, Ga. 31742 | County of Gwinnett | 3 | 0 | 0 |