B65/100
Unionville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 4,732 residents · Missouri
What's In Unionville's Tap Water?
21
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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
UNIONVILLE PWS
Population Served
1,735
Water Source
Purchased Surface Water
System ID
MO2010804
PUTNAM COUNTY PWSD 1
Population Served
2,997
Water Source
Purchased Surface Water
System ID
MO2024495
Frequently Asked Questions About Unionville Water
Is Unionville tap water safe to drink?
Unionville, Missouri tap water receives a grade of B (65/100), which is considered good. Out of 21 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 Unionville's water?
Of the 21 contaminants tested in Unionville'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 Unionville have any water quality violations?
Yes, Unionville has 19 EPA violation(s) on record, with the most recent in 2024. Violation types include MON, Other, TT. 12 of these are health-based violations, which are the most serious category.
Do I need a water filter in Unionville?
Unionville 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 Unionville's tap water come from?
Unionville's drinking water is sourced from purchased surface water and supplied by UNIONVILLE PWS and 1 other water system(s). The system serves approximately 4,732 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Unionville'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. Unionville'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 Unionville's water compare to other cities in Missouri?
Unionville's water quality score of 65/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Missouri state page to see how all cities in the state compare.
What should I do if I'm concerned about Unionville's water quality?
If you have concerns about Unionville'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 (UNIONVILLE 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.