A96/100
Oakdale Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 28,674 residents · Minnesota
What's In Oakdale's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2019.
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
Oakdale
Population Served
28,674
Water Source
Groundwater
System ID
MN1820016
Frequently Asked Questions About Oakdale Water
Is Oakdale tap water safe to drink?
Oakdale, Minnesota tap water receives a grade of A (96/100), which is considered excellent. Out of 66 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 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 Oakdale's water?
Of the 66 contaminants tested in Oakdale's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Oakdale have any water quality violations?
Yes, Oakdale has 1 EPA violation(s) on record, with the most recent in 2019. Violation types include MR. None of these are classified as health-based violations.
Do I need a water filter in Oakdale?
Oakdale 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. 1 contaminant(s) exceed these stricter goals.
Where does Oakdale's tap water come from?
Oakdale's drinking water is sourced from groundwater and supplied by Oakdale. The system serves approximately 28,674 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Oakdale'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. Oakdale'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 Oakdale's water compare to other cities in Minnesota?
Oakdale's water quality score of 96/100 earns a grade of A, which is considered excellent. This places Oakdale among the better-performing water systems in Minnesota. Visit our Minnesota state page to see how all cities in the state compare.
What should I do if I'm concerned about Oakdale's water quality?
If you have concerns about Oakdale'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 (Oakdale) 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.