A83/100
Alpharetta Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 434,517 residents · Georgia
What's In Alpharetta's Tap Water?
76
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: October 1, 2023 – October 25, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – October 25, 2023Enforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
NORTH FULTON COUNTY
Population Served
434,517
Water Source
Purchased Surface Water
System ID
GA1210005
Frequently Asked Questions About Alpharetta Water
Is Alpharetta tap water safe to drink?
Alpharetta, Georgia tap water receives a grade of A (83/100), which is considered excellent. Out of 76 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Alpharetta's water?
Of the 76 contaminants tested in Alpharetta's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Alpharetta have any water quality violations?
Yes, Alpharetta has 10 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Alpharetta?
Alpharetta water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Alpharetta's tap water come from?
Alpharetta's drinking water is sourced from purchased surface water and supplied by NORTH FULTON COUNTY. The system serves approximately 434,517 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Alpharetta's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Alpharetta's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Alpharetta's water compare to other cities in Georgia?
Alpharetta's water quality score of 83/100 earns a grade of A, which is considered excellent. This places Alpharetta among the better-performing water systems in Georgia. Visit our Georgia state page to see how all cities in the state compare.
What should I do if I'm concerned about Alpharetta's water quality?
If you have concerns about Alpharetta's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (NORTH FULTON COUNTY) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.