D29/100
NOLENSVILLE-COLLEGE GROVE U.D. — Water Quality Report 2026
Serving 32,793 people · Tennessee
Water Source
Purchased Surface Water
County
—
System ID
TN0000511
Violations
17
Contaminant Test Results
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
Frequently Asked Questions About NOLENSVILLE-COLLEGE GROVE U.D.
Is NOLENSVILLE-COLLEGE GROVE U.D. water safe to drink?
NOLENSVILLE-COLLEGE GROVE U.D. water receives a grade of D (29/100), which is considered poor. 2 contaminant(s) exceed EPA legal limits and 17 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NOLENSVILLE-COLLEGE GROVE U.D. detected?
70 contaminants were tested in NOLENSVILLE-COLLEGE GROVE U.D.'s water. Notable contaminants include PFOA, Copper (90th percentile), Lead (90th percentile), chlorate. 2 exceed EPA legal limits (MCLs). 4 exceed EPA health goals (MCLGs).
Does NOLENSVILLE-COLLEGE GROVE U.D. have any EPA violations?
Yes, NOLENSVILLE-COLLEGE GROVE U.D. has 17 EPA violation(s) on record, with the most recent in 2015. Violation types include MCL, MR. 8 are health-based violations.
How many people does NOLENSVILLE-COLLEGE GROVE U.D. serve?
NOLENSVILLE-COLLEGE GROVE U.D. serves approximately 32,793 people, Tennessee. The system provides water to 1 community: Nolensville.
What type of water does NOLENSVILLE-COLLEGE GROVE U.D. provide?
NOLENSVILLE-COLLEGE GROVE U.D. sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is TN0000511.
How does NOLENSVILLE-COLLEGE GROVE U.D. compare to other utilities in Tennessee?
NOLENSVILLE-COLLEGE GROVE U.D. scores 29/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Tennessee state page for a full comparison of water systems.