A87/100
Cumming Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 221,493 residents · Georgia
What's In Cumming'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) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2021 – August 17, 2021Enforcement: 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
CUMMING
Population Served
58,661
Water Source
Surface Water
System ID
GA1170000
SHADY SHORES SUBDIVISION
Population Served
1,632
Water Source
Purchased Surface Water
System ID
GA1170030
FORSYTH CO. WATER & SEWER
Population Served
161,200
Water Source
Surface Water
System ID
GA1170050
Frequently Asked Questions About Cumming Water
Is Cumming tap water safe to drink?
Cumming, Georgia tap water receives a grade of A (87/100), which is considered excellent. Out of 77 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 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 Cumming's water?
Of the 77 contaminants tested in Cumming's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Cumming have any water quality violations?
Yes, Cumming has 20 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MON, MR. 2 of these are health-based violations, which are the most serious category.
Do I need a water filter in Cumming?
Based on EPA data, using a water filter in Cumming is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Cumming's tap water come from?
Cumming's drinking water is sourced from surface water and supplied by CUMMING and 2 other water system(s). The system serves approximately 221,493 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Cumming'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. Cumming'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 Cumming's water compare to other cities in Georgia?
Cumming's water quality score of 87/100 earns a grade of A, which is considered excellent. This places Cumming 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 Cumming's water quality?
If you have concerns about Cumming'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 (CUMMING) 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.