Is Johns Creek, GA tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for North Fulton County Water System.
North Fulton County Water System supplies Johns Creek (434,517 people).
Water system
North Fulton County Water System
434,517 people · Purchased surface water · EPA ID GA1210005
Buys treated water from City of Atlanta Department of Watershed Management, Atlanta-Fulton County Water Resources, Gwinnett County Dept. of Water Resources, Cobb County – Marietta Water Authority.
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 1.6 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across Georgia, 27 of 252 water systems EPA tested had PFAS above a 2024 federal limit, and 16 systems were above the lead action level in results from the last five years. Georgia results.
Johns Creek homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Johns Creek city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Alpharetta 5 mi North Fulton County Water System | None above limits | 1.6 ppb |
| Roswell 8 mi Cobb County Water System | None above limits | – |
| Dunwoody 9 mi DeKalb County Water System | None above limits | 5.5 ppb |
| Milton 10 mi North Fulton County Water System | None above limits | 1.6 ppb |
| Chamblee 12 mi DeKalb County Water System | None above limits | 5.5 ppb |
| Tucker 13 mi DeKalb County Water System | None above limits | 5.5 ppb |
Johns Creek ZIP codes (2)
- 30022
- 30097
Questions
Is Johns Creek tap water safe to drink?
North Fulton County Water System has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Johns Creek, GA?
North Fulton County Water System, which serves 434,517 people.
Does Johns Creek tap water have PFAS?
None detected above EPA's reporting limits. North Fulton County Water System had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Johns Creek homes have lead pipes?
Census estimates put 5% of Johns Creek homes as built before 1980 (Georgia: 32%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. North Fulton County Water System's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.