D33/100
Winfield Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 15,489 residents · Missouri
What's In Winfield's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
2
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
strontium | 2280.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.004 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 1, 2024 – December 31, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2022 – April 30, 2022Rule: Total Coliform RuleEnforcement: 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
WINFIELD PWS
Population Served
1,489
Water Source
Purchased Groundwater
System ID
MO6010866
LINCOLN COUNTY PWSD 1
Population Served
14,000
Water Source
Groundwater
System ID
MO6024340
Frequently Asked Questions About Winfield Water
Is Winfield tap water safe to drink?
Winfield, Missouri tap water receives a grade of D (33/100), which is considered poor. 1 contaminant(s) exceed EPA maximum contaminant levels and 53 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Winfield's water?
Of the 67 contaminants tested in Winfield's water supply, the most notable include Copper (90th percentile), Lead (90th percentile), strontium. 1 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 Winfield have any water quality violations?
Yes, Winfield has 53 EPA violation(s) on record, with the most recent in 2024. Violation types include MON, RPT, Other. 35 of these are health-based violations, which are the most serious category.
Do I need a water filter in Winfield?
Based on EPA data, using a water filter in Winfield 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 Winfield's tap water come from?
Winfield's drinking water is sourced from purchased groundwater and supplied by WINFIELD PWS and 1 other water system(s). The system serves approximately 15,489 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Winfield'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. Winfield'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 Winfield's water compare to other cities in Missouri?
Winfield's water quality score of 33/100 earns a grade of D, which is considered poor. This is a concerning score that suggests significant water quality issues. Visit our Missouri state page to see how all cities in the state compare.
What should I do if I'm concerned about Winfield's water quality?
If you have concerns about Winfield'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 (WINFIELD PWS) 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.