Grinnell Water Department

ZipCheckup's reading of EPA SDWIS for Grinnell Water Department (IA7930008): 13 past health-based violations, since resolved. Federal water data for Grinnell Water Department logs 18 historical violations - all addressed and cleared, leaving the utility in current compliance for 9,564 people.

Data: EPA SDWIS

System Overview

Grinnell Water Department (EPA ID: IA7930008) is a community water system in Iowa that serves approximately 9,564 people from groundwater sources.

This system serves ZIP code 50112 in Grinnell.

Violation History

Status breakdown for accepted records with record years 2021-2026: 3 resolved, 15 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Health Risk Details

Gross Alpha Particle Activity (EPA limit: pCi/L)

Increased cancer risk from radioactive particles At-risk groups: long-term residents in areas with uranium or radium-rich geology, people on private wells in western US.

Removal methods: reverse osmosis, ion exchange (anion exchange for radium), lime softening. Find the right filter →

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by IA or modeled from parcel and building-footprint data.

• 50112 - Grinnell

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Grinnell Water Department (IA7930008) on EPA.gov.

Frequently Asked Questions

Is Grinnell Water Department water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Grinnell Water Department; its 18 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Grinnell Water Department serve?

Grinnell Water Department serves approximately 9,564 people across 1 ZIP code in Iowa.

Where does Grinnell Water Department get its water?

The primary water source is groundwater.

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  author = {{ZipCheckup}},
  title  = {{Grinnell Water Department (IA): 13 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/ia7930008/}
}