Cornish Water District
EPA ID: ME0090380 · 758 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Cornish Water District (ME0090380): no drinking-water violations recorded since 2021. Nothing in the federal violation file is listed against Cornish Water District, a system that provides water to roughly 758 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Cornish Water District Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Cornish Water District have a median household income of $65,159 and about 3,652 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 61% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Cornish Water District'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.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Maine
System Overview
Cornish Water District (EPA ID: ME0090380) is a community water system in Maine that serves approximately 758 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0014 mg/L | No | 2023-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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 ME 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 Cornish Water District (ME0090380) on EPA.gov.
Frequently Asked Questions
Is Cornish Water District water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Cornish Water District in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Cornish Water District serve?
Cornish Water District serves approximately 758 people across 2 ZIP codes in Maine.
Where does Cornish Water District get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Cornish Water District Water Quality Report, ME. https://zipcheckup.com/water-system/me0090380/
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