Iowa City Water Quality
Iowa
According to EPA SDWIS, Iowa City, Iowa is served by 15 community water systems covering about 96,740 people. The same extract lists 16 health-based violation records, most recently coded 4010 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Iowa City, Iowa is delivered through 15 EPA-regulated community water systems serving an estimated 96,740 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.
PlainEnviro's health-based SDWIS extract shows 16 violation records across the 15 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Combined Radium (-226 and -228), Revised Total Coliform Rule, TTHM, Groundwater Rule. 5 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. 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 | 225 | 4 | 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 TRAILS HOMEOWNERS ASSOCIATION | 80 | 0 | Clean |
| WENDRAM BLUFF HOMES WATER SYSTEM | 68 | 1 | Health |
| TURKEY CREEK DEVELOPMENT | 65 | 0 | Clean |
| KESSLERS HOMEOWNERS ASSN | 60 | 8 | 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?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2025-07-01 |
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2025-04-01 |
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2025-01-01 |
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2025-01-01 |
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2024-10-01 |
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2024-10-01 |
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2024-10-01 |
| KESSLERS HOMEOWNERS ASSN | Combined Radium (-226 and -228) | 2024-10-01 |
| WALDSCHMIDT SUBDIVISION | Revised Total Coliform Rule | 2019-09-01 |
| UNIVERSITY WATER SYSTEM | TTHM | 2017-04-01 |
| IOWA CITY REGENCY MOBILE HOME COMMUNITY | Groundwater Rule | 2017-01-01 |
| IOWA CITY REGENCY MOBILE HOME COMMUNITY | Groundwater Rule | 2017-01-01 |
| UNIVERSITY WATER SYSTEM | TTHM | 2017-01-01 |
| IOWA CITY REGENCY MOBILE HOME COMMUNITY | Groundwater Rule | 2016-10-01 |
| IOWA CITY REGENCY MOBILE HOME COMMUNITY | Groundwater Rule | 2016-10-01 |
| WENDRAM BLUFF HOMES WATER SYSTEM | Revised Total Coliform Rule | 2016-09-01 |
What are Iowa City's health-based records for?
Iowa City's health-based violation records carry 4 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Combined Radium (-226 and -228) | 8 | 1 |
| Groundwater Rule | 4 | 1 |
| Revised Total Coliform Rule | 2 | 2 |
| Tthm | 2 | 1 |
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
What does EPA SDWIS list for drinking water in Iowa City, Iowa? ▼
How many water violations does Iowa City have in this EPA extract? ▼
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? ▼
How does Iowa City compare in Iowa?
Of the 598 Iowa places with at least one community water system on file, Iowa City ranks #7 by number of systems (15).
Either side of it: Cedar Rapids (17), Marshalltown (16), Davenport (14), Blue Grass (13)
About This Data
Figures here are the current EPA SDWIS extract joined to the 15 community water systems whose service area lists Iowa City, ranked against the 598 Iowa places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
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.