Iowa City Water Quality
Iowa
The tap water in Iowa City, Iowa is served by 16 EPA-regulated water systems covering approximately 97,293 people. 13 health-based violations are on record, most recently for 4010 in 2025. Data source: EPA Safe Drinking Water Information System.
Drinking water in Iowa City, Iowa is delivered through 16 EPA-regulated community water systems serving an estimated 97,293 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
The SDWIS record for Iowa City shows 13 total violations across all 16 systems, of which 13 are health-based, meaning either a Maximum Contaminant Level (MCL) was exceeded or a required treatment technique was not followed. Contaminants cited in health-based violations include 4010, 8000, 2950, 0700. 5 TRI-reporting industrial facilities are also located within the city limits.
A past EPA violation does not mean the water is currently unsafe, utilities are required to notify customers and remediate under state primacy oversight. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Iowa drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| IOWA CITY WATER DEPARTMENT | 68,753 | 0 | Clean |
| UNIVERSITY WATER SYSTEM | 26,684 | 2 | Health |
| IOWA CITY REGENCY MOBILE HOME COMMUNITY | 700 | 2 | Health |
| SPRING VALLEY HOMEOWNERS ASSN. | 163 | 0 | Clean |
| PRAIRIE VIEW ESTATES ASSOC JOHNSON CNTY | 155 | 0 | Clean |
| FORESTGATE SUBDIVISION | 140 | 0 | Clean |
| RIVERVIEW ESTATES | 108 | 0 | Clean |
| MAKADA HOMEOWNERS ASSOCIATION | 85 | 0 | Clean |
| TIMBER TRAIL HOMEOWNERS ASSOCIATION | 80 | 0 | Clean |
| ORCHARD VIEW ESTATES | 78 | 0 | Clean |
| WENDRAM BLUFF HOMES WATER SYSTEM | 68 | 1 | Health |
| TURKEY CREEK DEVELOPMENT | 65 | 0 | Clean |
| KESSLERS HOMEOWNERS ASSN | 60 | 7 | Health |
| CHERRY HILLS SUBDIVISION | 59 | 0 | Clean |
| WOODS AT HUNTER CREEK (PART 1) | 50 | 0 | Clean |
| WALDSCHMIDT SUBDIVISION | 45 | 1 | Health |
Does this city have health-based water violations?
Health-based violations indicate contaminant levels that exceeded EPA maximum contaminant levels (MCLs). This does not necessarily mean water is currently unsafe.
| Contaminant | Begin Date |
|---|---|
| 4010 | 2025-07-01 |
| 4010 | 2025-04-01 |
| 4010 | 2025-01-01 |
| 4010 | 2025-01-01 |
| 4010 | 2024-10-01 |
| 4010 | 2024-10-01 |
| 4010 | 2024-10-01 |
| 8000 | 2019-09-01 |
| 2950 | 2017-04-01 |
| 0700 | 2017-01-01 |
| 2950 | 2017-01-01 |
| 0700 | 2016-10-01 |
| 8000 | 2016-09-01 |
TRI Facilities in Iowa City
| Facility | Total Releases |
|---|---|
| Loparex LLC | 220.8K lbs |
| Procter & Gamble Hair Care LLC | 76.6K lbs |
| Hawkeye Ready Mix | 500 lbs |
| Hubbard Feeds Inc | 0 lbs |
| P&g Iowa City Power Oral Care | 0 lbs |
Frequently Asked Questions
Is Iowa City, Iowa water safe to drink? ▼
How many water violations does Iowa City have? ▼
What contaminants were found in Iowa City water? ▼
How many water systems serve Iowa City? ▼
Where does Iowa City get its drinking water? ▼
Are there pollution sources near Iowa City? ▼
About This Data
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). Violations are reported by state agencies to EPA and include both health-based (MCL exceedances) and monitoring/reporting violations.
A reported violation does not necessarily mean water is currently unsafe to drink. Many violations are resolved quickly, and public water systems are required to notify customers of significant issues. For current water quality, contact your local water utility.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.