F16/100
Thurmont Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 6,200 residents · Maryland
What's In Thurmont's Tap Water?
34
Contaminants Tested
2
Exceed EPA Limits
1
Above EPA Goals
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.012 µg/L | 0.004 µg/L | Over Limit |
PFOS | 0.011 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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
TOWN OF THURMONT
Population Served
6,200
Water Source
Groundwater Under Influence of Surface Water
System ID
MD0100023
Frequently Asked Questions About Thurmont Water
Is Thurmont tap water safe to drink?
Thurmont, Maryland tap water receives a grade of F (16/100), which is considered failing. 2 contaminant(s) exceed EPA maximum contaminant levels and 49 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Thurmont's water?
Of the 34 contaminants tested in Thurmont's water supply, the most notable include PFOA, PFOS, Lead (90th percentile). 2 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Thurmont have any water quality violations?
Yes, Thurmont has 49 EPA violation(s) on record, with the most recent in 2010. Violation types include MR, TT, Other. 4 of these are health-based violations, which are the most serious category.
Do I need a water filter in Thurmont?
Based on EPA data, using a water filter in Thurmont 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 Thurmont's tap water come from?
Thurmont's drinking water is sourced from groundwater under influence of surface water and supplied by TOWN OF THURMONT. The system serves approximately 6,200 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Thurmont'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. Thurmont'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 Thurmont's water compare to other cities in Maryland?
Thurmont's water quality score of 16/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Maryland state page to see how all cities in the state compare.
What should I do if I'm concerned about Thurmont's water quality?
If you have concerns about Thurmont'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 (TOWN OF THURMONT) 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.