B73/100
Watford City Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 10,285 residents · North Dakota
What's In Watford City's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 3.11 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.007 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2022 – September 30, 2022Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
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
WATFORD CITY CITY OF
Population Served
6,390
Water Source
Purchased Surface Water
System ID
ND2700990
MCKENZIE COUNTY WRD
Population Served
3,895
Water Source
Purchased Surface Water
System ID
ND2701477
Frequently Asked Questions About Watford City Water
Is Watford City tap water safe to drink?
Watford City, North Dakota tap water receives a grade of B (73/100), which is considered good. Out of 32 contaminants tested, 1 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 Watford City's water?
Of the 32 contaminants tested in Watford City's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Watford City have any water quality violations?
Yes, Watford City has 23 EPA violation(s) on record, with the most recent in 2022. Violation types include MR, Other, MCL. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Watford City?
Based on EPA data, using a water filter in Watford City is recommended. 1 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 Watford City's tap water come from?
Watford City's drinking water is sourced from purchased surface water and supplied by WATFORD CITY CITY OF and 1 other water system(s). The system serves approximately 10,285 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Watford City'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. Watford City'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 Watford City's water compare to other cities in North Dakota?
Watford City's water quality score of 73/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our North Dakota state page to see how all cities in the state compare.
What should I do if I'm concerned about Watford City's water quality?
If you have concerns about Watford City'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 (WATFORD CITY 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.