GRINNELL WATER DEPARTMENT
PWSID: IA7930008 · Grinnell, IA · Serves 9,564 people
GRINNELL WATER DEPARTMENT has 33 health-based violations out of 33 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
GRINNELL WATER DEPARTMENT (PWSID IA7930008) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 9,564 people in Grinnell, IA, and is subject to primacy enforcement by the Iowa drinking-water program.
The system's federal compliance record contains 33 total violations, with 33 classified as health-based (MCL exceedances or treatment-technique failures). 2 distinct contaminants have been cited, including Lead & Copper Rule, Copper. Recorded violations span 2024–2025.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Iowa state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- IA7930008
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Grinnell, IA
- Population Served
- 9,564
- Health Violations
- Yes (33)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Lead & Copper Rule | 19 | 19 |
| Copper | 14 | 14 |
Violation History (33)
| Contaminant | Health | Date |
|---|---|---|
| Lead & Copper Rule | Yes | Apr 1, 2025 |
| Lead & Copper Rule | Yes | Apr 1, 2025 |
| Copper | Yes | Jan 1, 2025 |
| Copper | Yes | Jan 1, 2025 |
| Lead & Copper Rule | Yes | Jan 1, 2025 |
| Lead & Copper Rule | Yes | Jan 1, 2025 |
| Lead & Copper Rule | Yes | Jan 1, 2025 |
| Lead & Copper Rule | Yes | Oct 1, 2024 |
| Lead & Copper Rule | Yes | Oct 1, 2024 |
| Lead & Copper Rule | Yes | Oct 1, 2024 |
| Copper | Yes | Oct 1, 2024 |
| Copper | Yes | Oct 1, 2024 |
| Copper | Yes | Oct 1, 2024 |
| Lead & Copper Rule | Yes | Jul 1, 2024 |
| Lead & Copper Rule | Yes | Jul 1, 2024 |
| Lead & Copper Rule | Yes | Jul 1, 2024 |
| Copper | Yes | Jul 1, 2024 |
| Copper | Yes | Jul 1, 2024 |
| Copper | Yes | Jul 1, 2024 |
| Lead & Copper Rule | Yes | Apr 1, 2024 |
| Lead & Copper Rule | Yes | Apr 1, 2024 |
| Lead & Copper Rule | Yes | Apr 1, 2024 |
| Lead & Copper Rule | Yes | Apr 1, 2024 |
| Copper | Yes | Apr 1, 2024 |
| Copper | Yes | Apr 1, 2024 |
| Copper | Yes | Apr 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Copper | Yes | Jan 1, 2024 |
| Copper | Yes | Jan 1, 2024 |
| Copper | Yes | Jan 1, 2024 |
Frequently Asked Questions
Is GRINNELL WATER DEPARTMENT water safe to drink?
How many people does GRINNELL WATER DEPARTMENT serve?
What violations does GRINNELL WATER DEPARTMENT have?
What contaminants have been found in GRINNELL WATER DEPARTMENT water?
Nearby Water Systems
Explore More
About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.