A97/100
Lisbon Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,829 residents · North Dakota
What's In Lisbon's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
This system has a clean compliance history.
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
LISBON CITY OF
Population Served
2,154
Water Source
Groundwater
System ID
ND3700574
SOUTHEAST WUD (CENTRAL-LISBON)
Population Served
1,675
Water Source
Purchased Groundwater
System ID
ND3701448
Frequently Asked Questions About Lisbon Water
Is Lisbon tap water safe to drink?
Lisbon, North Dakota tap water receives a grade of A (97/100), which is considered excellent. Out of 21 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Lisbon's water?
21 contaminants were tested in Lisbon's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Lisbon have any water quality violations?
Yes, Lisbon has 2 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Lisbon?
Lisbon 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. All contaminants are within health goals.
Where does Lisbon's tap water come from?
Lisbon's drinking water is sourced from groundwater and supplied by LISBON CITY OF and 1 other water system(s). The system serves approximately 3,829 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Lisbon'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. Lisbon'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 Lisbon's water compare to other cities in North Dakota?
Lisbon's water quality score of 97/100 earns a grade of A, which is considered excellent. This places Lisbon among the better-performing water systems in North Dakota. Visit our North Dakota state page to see how all cities in the state compare.
What should I do if I'm concerned about Lisbon's water quality?
If you have concerns about Lisbon'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 (LISBON CITY OF) 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.