B74/100
Centerville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 60,024 residents · Iowa
What's In Centerville's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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
RATHBUN REGIONAL WATER ASSN (RATHBUN)
Population Served
33,000
Water Source
Surface Water
System ID
IA0400900
RATHBUN REG WATER ASSN (FT MADISON)
Population Served
11,840
Water Source
Purchased Surface Water
System ID
IA0400901
RATHBUN REG WTR ASSN (BURLINGTON)
Population Served
8,375
Water Source
Purchased Surface Water
System ID
IA0400902
CENTERVILLE MUNICIPAL WATERWORKS
Population Served
5,344
Water Source
Purchased Surface Water
System ID
IA0407008
RATHBUN REGIONAL WATER (MOUNT PLEASANT)
Population Served
1,465
Water Source
Purchased Surface Water
System ID
IA4453901
Frequently Asked Questions About Centerville Water
Is Centerville tap water safe to drink?
Centerville, Iowa tap water receives a grade of B (74/100), which is considered good. Out of 72 contaminants tested, none 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 Centerville's water?
Of the 72 contaminants tested in Centerville's water supply, the most notable include Lead (90th percentile), 1,4-dioxane. No contaminants exceed EPA legal limits. 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Centerville have any water quality violations?
Yes, Centerville has 87 EPA violation(s) on record, with the most recent in 2020. Violation types include MR, TT, MCL. 9 of these are health-based violations, which are the most serious category.
Do I need a water filter in Centerville?
Centerville 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. 2 contaminant(s) exceed these stricter goals.
Where does Centerville's tap water come from?
Centerville's drinking water is sourced from surface water and supplied by RATHBUN REGIONAL WATER ASSN (RATHBUN) and 4 other water system(s). The system serves approximately 60,024 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Centerville'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. Centerville'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 Centerville's water compare to other cities in Iowa?
Centerville's water quality score of 74/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Iowa state page to see how all cities in the state compare.
What should I do if I'm concerned about Centerville's water quality?
If you have concerns about Centerville'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 (RATHBUN REGIONAL WATER ASSN (RATHBUN)) 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.