Marshalltown Water Quality
Iowa
The tap water in Marshalltown, Iowa is served by 15 EPA-regulated water systems covering approximately 34,613 people. 22 health-based violations are on record, most recently for 1040 in 2024. Data source: EPA Safe Drinking Water Information System.
Drinking water in Marshalltown, Iowa is delivered through 15 EPA-regulated community water systems serving an estimated 34,613 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 Marshalltown shows 22 total violations across all 15 systems, of which 22 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 1040. 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 |
|---|---|---|---|
| MARSHALLTOWN WATER WORKS | 27,591 | 0 | Clean |
| ACKLEY MUNICIPAL WATER WORKS | 1,599 | 0 | Clean |
| CLARKSVILLE WATER SUPPLY | 1,254 | 0 | Clean |
| CRESCENT WATER SUPPLY | 778 | 0 | Clean |
| DUMONT WATER SUPPLY | 635 | 0 | Clean |
| NEW HARTFORD WATER SUPPLY | 570 | 0 | Clean |
| MARSHALLTOWN ESTATES | 382 | 0 | Clean |
| ANDREW WATER SUPPLY | 380 | 0 | Clean |
| MONDAMIN WATER SUPPLY | 339 | 0 | Clean |
| SILVER CITY WATER SUPPLY | 245 | 0 | Clean |
| LA MOTTE WATER SUPPLY | 237 | 0 | Clean |
| RANDOLPH WATER WORKS | 192 | 0 | Clean |
| HASTINGS WATER SUPPLY | 152 | 22 | Health |
| SWALEDALE WATER SUPPLY | 144 | 0 | Clean |
| HICKORY ACRES | 115 | 0 | Clean |
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 |
|---|---|
| 1040 | 2024-04-01 |
| 1040 | 2024-04-01 |
| 1040 | 2024-04-01 |
| 1040 | 2024-03-01 |
| 1040 | 2024-03-01 |
| 1040 | 2024-03-01 |
| 1040 | 2023-12-01 |
| 1040 | 2023-12-01 |
| 1040 | 2023-12-01 |
| 1040 | 2023-11-01 |
| 1040 | 2023-11-01 |
| 1040 | 2023-11-01 |
| 1040 | 2023-05-01 |
| 1040 | 2023-05-01 |
| 1040 | 2023-05-01 |
| 1040 | 2023-05-01 |
| 1040 | 2023-05-01 |
| 1040 | 2023-04-01 |
| 1040 | 2023-04-01 |
| 1040 | 2023-04-01 |
| 1040 | 2023-04-01 |
| 1040 | 2023-04-01 |
TRI Facilities in Marshalltown
| Facility | Total Releases |
|---|---|
| Swift Pork | 9.2M lbs |
| Diamond Vogel Inc. | 5.5K lbs |
| Fisher Controls International LLC | 1.7K lbs |
| Lennox Industries Inc | 102 lbs |
| Forterra Concrete Products - Marshalltown | 0 lbs |
Frequently Asked Questions
Is Marshalltown, Iowa water safe to drink? ▼
How many water violations does Marshalltown have? ▼
What contaminants were found in Marshalltown water? ▼
How many water systems serve Marshalltown? ▼
Where does Marshalltown get its drinking water? ▼
Are there pollution sources near Marshalltown? ▼
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.