D29/100
Nolensville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 32,793 residents · Tennessee
What's In Nolensville's Tap Water?
70
Contaminants Tested
2
Exceed EPA Limits
2
Above EPA Goals
4 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.76 mg/L | 1.30 mg/L | Over Limit |
PFOA | 0.008 µg/L | 0.004 µg/L | Over Limit |
chlorate | 470.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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
NOLENSVILLE-COLLEGE GROVE U.D.
Population Served
32,793
Water Source
Purchased Surface Water
System ID
TN0000511
Frequently Asked Questions About Nolensville Water
Is Nolensville tap water safe to drink?
Nolensville, Tennessee tap water receives a grade of D (29/100), which is considered poor. 2 contaminant(s) exceed EPA maximum contaminant levels and 17 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Nolensville's water?
Of the 70 contaminants tested in Nolensville's water supply, the most notable include PFOA, Copper (90th percentile), Lead (90th percentile), chlorate. 2 contaminant(s) exceed EPA legal limits (MCLs). 4 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Nolensville have any water quality violations?
Yes, Nolensville has 17 EPA violation(s) on record, with the most recent in 2015. Violation types include MCL, MR. 8 of these are health-based violations, which are the most serious category.
Do I need a water filter in Nolensville?
Based on EPA data, using a water filter in Nolensville is recommended. 2 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 Nolensville's tap water come from?
Nolensville's drinking water is sourced from purchased surface water and supplied by NOLENSVILLE-COLLEGE GROVE U.D.. The system serves approximately 32,793 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Nolensville'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. Nolensville'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 Nolensville's water compare to other cities in Tennessee?
Nolensville's water quality score of 29/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our Tennessee state page to see how all cities in the state compare.
What should I do if I'm concerned about Nolensville's water quality?
If you have concerns about Nolensville'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 (NOLENSVILLE-COLLEGE GROVE U.D.) 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.