A82/100
West Union Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,540 residents · Iowa
What's In West Union's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 1991.
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
WEST UNION WATER SUPPLY
Population Served
2,540
Water Source
Groundwater
System ID
IA3383014
Frequently Asked Questions About West Union Water
Is West Union tap water safe to drink?
West Union, Iowa tap water receives a grade of A (82/100), which is considered excellent. Out of 1 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 West Union's water?
Of the 1 contaminants tested in West Union'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 West Union have any water quality violations?
Yes, West Union has 3 EPA violation(s) on record, with the most recent in 1991. Violation types include MCL. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in West Union?
West Union 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 West Union's tap water come from?
West Union's drinking water is sourced from groundwater and supplied by WEST UNION WATER SUPPLY. The system serves approximately 2,540 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is West Union'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. West Union'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 West Union's water compare to other cities in Iowa?
West Union's water quality score of 82/100 earns a grade of A, which is considered excellent. This places West Union among the better-performing water systems in Iowa. Visit our Iowa state page to see how all cities in the state compare.
What should I do if I'm concerned about West Union's water quality?
If you have concerns about West Union'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 (WEST UNION WATER SUPPLY) 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.