B78/100
Maryville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 102,999 residents · Tennessee
What's In Maryville's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
2
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 390.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
1
Health-Related
TIER 1 — URGENTUnresolved
Maximum Contaminant Level Violation
When: May 1, 2025 – May 31, 2025Rule: Total Coliform RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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
CITY OF MARYVILLE W&S DEPT
Population Served
49,135
Water Source
Surface Water
System ID
TN0000438
SOUTH BLOUNT UTILITY DISTRICT
Population Served
53,864
Water Source
Surface Water
System ID
TN0000643
Frequently Asked Questions About Maryville Water
Is Maryville tap water safe to drink?
Maryville, Tennessee tap water receives a grade of B (78/100), which is considered good. Out of 69 contaminants tested, none 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 Maryville's water?
Of the 69 contaminants tested in Maryville's water supply, the most notable include Lead (90th percentile), chlorate. No contaminants exceed EPA legal limits. 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Maryville have any water quality violations?
Yes, Maryville has 15 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, MR, Other. 5 of these are health-based violations, which are the most serious category.
Do I need a water filter in Maryville?
Maryville 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. 2 contaminant(s) exceed these stricter goals.
Where does Maryville's tap water come from?
Maryville's drinking water is sourced from surface water and supplied by CITY OF MARYVILLE W&S DEPT and 1 other water system(s). The system serves approximately 102,999 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Maryville'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. Maryville'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 Maryville's water compare to other cities in Tennessee?
Maryville's water quality score of 78/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Tennessee state page to see how all cities in the state compare.
What should I do if I'm concerned about Maryville's water quality?
If you have concerns about Maryville'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 (CITY OF MARYVILLE W&S DEPT) 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.