State Hub
Iowa Water Quality
498
Utilities in database
2.9M
Residents served
0
With open violations
146
PFAS monitored
Quick Answer
Iowa public drinking water is served by 498 EPA-tracked water systems, providing service to approximately 2.9 million residents through public utilities. No open health-based violations are currently recorded across tracked systems in the EPA federal database. 146 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 35% of IA residents use private wells, which fall outside federal utility compliance monitoring.
No open health-based violations are currently recorded in the EPA SDWIS database for Iowa's tracked water systems. Always verify with your utility's Consumer Confidence Report for annual test results.
Drinking Water in Iowa
Iowa has 498 community water systems serving approximately 2.9 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, arsenic. 35% of Iowa residents rely on private wells. DNR holds primary enforcement authority under the Safe Drinking Water Act.
Safest Large Utilities
Iowa systems with no open health violations serving 10,000+ residents.
Utilities in Iowa
176–200 of 498Belle Plaine Water Dept
IA0610099 · 2,380 served
Bellevue Municipal Utilities
IA4910000 · 2,363 served
Ely Water Supply
IA5728018 · 2,328 served
Colfax Water Supply
IA5009056 · 2,305 served
La Porte City Utilities
IA0743057 · 2,284 served
Peosta Water Supply
IA3170001 · 2,278 served
Rockwell City Water Supply
IA1376098 · 2,250 served
Lisbon Water Supply
IA5748086 · 2,233 served
Rock Valley Rural Water District
IA8482701 · 2,230 served
Greenfield Municipal Utilities
IA0140007 · 2,227 served
Lake Mills Municipal Water Dept-south
IA9545044 · 2,158 served
Osceola Rural Water System-south
IA7177701 · 2,112 served
Wapello Municipal Water Works
IA5879063 · 2,096 served
Sac City Municipal Water Plant
IA8150015 · 2,093 served
Alta Municipal Water Plant
IA1108025 · 2,087 served
Northwood Waterworks
IA9855077 · 2,072 served
Britt Water Works
IA4103045 · 2,064 served
Atkins Municipal Water Works
IA0603072 · 2,056 served
Audubon Water Supply
IA0505077 · 2,053 served
Ida Grove Water Utility
IA4728067 · 2,051 served
Sumner Water Supply
IA0970006 · 2,030 served
Lamoni Municipal Utilities
IA2740050 · 2,029 served
Epworth Water Supply
IA3133033 · 2,023 served
Parkersburg Water Supply
IA1281028 · 2,019 served
Monroe Water Supply
IA5054096 · 2,007 served
Key Contaminant Concerns in Iowa
These contaminants appear most frequently in Iowa utility records or pose elevated risk in this region based on EPA data.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
Arsenic
Arsenic (As) occurs naturally in rock and soil, dissolving into groundwater through natural weathering processes. Inorganic arsenic — the form found in drinking water — is a known human carcinogen. The western United States has particularly arsenic-rich geological formations, but elevated levels have been found in 48 states. Arsenic is tasteless and odorless.
EPA limit: 10 ppb
City Water Reports in Iowa
Tap water quality pages for Iowa cities — violations, PFAS records, utility profiles, and official source links.
Independent Water Testing
Find a certified lab in Iowa
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. Iowa labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in Iowa
Belle Plaine Water Dept
Violation history, PFAS records, and official source links
Bellevue Municipal Utilities
Violation history, PFAS records, and official source links
Ely Water Supply
Violation history, PFAS records, and official source links
PFAS monitoring records — Iowa
146 water systems in Iowa with EPA UCMR 5 records
Lead in Iowa drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in Iowa drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in Iowa
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About Iowa Drinking Water
Does Iowa drinking water have PFAS?
146 Iowa water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which Iowa water utilities have open violations?
Browse Iowa utility compliance records and violation history
How do I test my water in Iowa?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from IA tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do Iowa PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is Iowa water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
Iowa Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2026-04-22