Nashua Water Supply
EPA ID: IA1967041 · 1,551 people served · 3 ZIP codes
ZipCheckup's reading of EPA records for Nashua Water Supply (IA1967041): 4 violations on record since 2021. While 4 violations did appear in Nashua Water Supply's monitoring record, none is listed as unresolved; the utility serves approximately 1,551 residents. A closed violation record does not by itself establish compliance with every current EPA standard.
Data: EPA SDWIS
Service Area Map
Coverage area for Nashua Water Supply Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Nashua Water Supply have a median household income of $70,321 and about 9,675 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 78% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Nashua Water Supply's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Iowa
System Overview
Nashua Water Supply (EPA ID: IA1967041) is a community water system in Iowa that serves approximately 1,551 people from groundwater sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 4 resolved, 0 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
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 23, 2022 | Public Notice | Non-health-based | Resolved |
| July 23, 2022 | Public Notice | Non-health-based | Resolved |
| March 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
| March 1, 2022 | Nitrate | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Public Notice | Other (notice or report rule) | 2 | No |
| Nitrate | Monitoring & Reporting | 1 | No |
| Revised Total Coliform Rule | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0043 mg/L | No | 2025-12-31 |
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
3 of 3 ZIP records with known zones are in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Nashua Water Supply (IA1967041) on EPA.gov.
Frequently Asked Questions
Is Nashua Water Supply water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Nashua Water Supply; its 4 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Nashua Water Supply serve?
Nashua Water Supply serves approximately 1,551 people across 3 ZIP codes in Iowa.
Where does Nashua Water Supply get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Nashua Water Supply (IA): 4 EPA Violations. https://zipcheckup.com/water-system/ia1967041/
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author = {{ZipCheckup}},
title = {{Nashua Water Supply (IA): 4 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ia1967041/}
}
What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Nashua Water Supply (EPA ID: IA1967041) - request the latest Consumer Confidence Report or ask about specific contaminants.