Lake Crystal
EPA ID: MN1070006 · 2,554 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Lake Crystal (MN1070006): no drinking-water violations recorded since 2021. Federal SDWIS data returns no violation records for Lake Crystal, the supplier serving 2,554 residents - a statement about the EPA file rather than a measurement of contaminant levels in the water.
Data: EPA SDWIS
Service Area Map
Coverage area for Lake Crystal Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Lake Crystal have a median household income of $83,260 and about 4,285 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 72% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Lake Crystal'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 80th 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 Minnesota
System Overview
Lake Crystal (EPA ID: MN1070006) is a community water system in Minnesota that serves approximately 2,554 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 |
|---|---|---|
| 0.002 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.
Radon Risk in Service Area
2 of 2 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 MN 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 Lake Crystal (MN1070006) on EPA.gov.
Frequently Asked Questions
Is Lake Crystal water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Lake Crystal 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 Lake Crystal serve?
Lake Crystal serves approximately 2,554 people across 2 ZIP codes in Minnesota.
Where does Lake Crystal get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lake Crystal Water Quality Report, MN. https://zipcheckup.com/water-system/mn1070006/
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author = {{ZipCheckup}},
title = {{Lake Crystal Water Quality Report, MN}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/mn1070006/}
}