Grinnell Water Quality
Iowa
According to EPA SDWIS, Grinnell, Iowa is served by 7 community water systems covering about 14,224 people. The same extract lists 39 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 Grinnell, Iowa is delivered through 7 EPA-regulated community water systems serving an estimated 14,224 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 39 violation records across the 7 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), Gross Alpha, Excl. Radon and U, Revised Total Coliform Rule, Lead and Copper Rule. 1 TRI-reporting industrial facility is 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 |
|---|---|---|---|
| GRINNELL WATER DEPARTMENT | 9,564 | 35 | Health |
| LAKE RIDGE, INCORPORATED | 1,300 | 0 | Clean |
| AUTUMN RIDGE ESTATES MHP | 1,032 | 0 | Clean |
| MODERN MANOR, INC | 915 | 0 | Clean |
| WESTERN HILLS (MOBILE) ESTATES | 760 | 0 | Clean |
| SUNRISE VILLAGE MOBILE HOME PK | 340 | 2 | Health |
| GRINNELL MHP MHC | 313 | 2 | 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 |
|---|---|---|
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2025-04-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2025-04-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2025-01-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2025-01-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2025-01-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2025-01-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2025-01-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-10-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-10-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-10-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-10-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-10-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-10-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-10-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-10-01 |
| GRINNELL MHP MHC | Revised Total Coliform Rule | 2024-09-01 |
| GRINNELL MHP MHC | Revised Total Coliform Rule | 2024-09-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-07-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-07-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-07-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-07-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-07-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-07-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-04-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-04-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-04-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-04-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-04-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-04-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-04-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-01-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-01-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-01-01 |
| GRINNELL WATER DEPARTMENT | Combined Radium (-226 and -228) | 2024-01-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| GRINNELL WATER DEPARTMENT | Gross Alpha, Excl. Radon and U | 2024-01-01 |
| SUNRISE VILLAGE MOBILE HOME PK | Lead and Copper Rule | 2018-10-01 |
| SUNRISE VILLAGE MOBILE HOME PK | Lead and Copper Rule | 2018-07-27 |
What are Grinnell's health-based records for?
Grinnell'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) | 20 | 1 |
| Gross Alpha, Excl. Radon and U | 15 | 1 |
| Lead and Copper Rule | 2 | 1 |
| Revised Total Coliform Rule | 2 | 1 |
TRI Facilities in Grinnell
| Facility | Total Releases |
|---|---|
| Jeld-Wen Door Systems | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Grinnell, Iowa? ▼
How many water violations does Grinnell have in this EPA extract? ▼
What contaminants were found in Grinnell water? ▼
How many water systems serve Grinnell? ▼
Where does Grinnell get its drinking water? ▼
Are there pollution sources near Grinnell? ▼
How does Grinnell compare in Iowa?
Of the 598 Iowa places with at least one community water system on file, Grinnell ranks #18 by number of systems (7).
Either side of it: Storm Lake (8), Washington (8), Knoxville (7), Madrid (7)
About This Data
Figures here are the current EPA SDWIS extract joined to the 7 community water systems whose service area lists Grinnell, 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.