Long Lake
EPA ID: MN1270018 · 1,729 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Long Lake (MN1270018): no drinking-water violations recorded since 2021. Long Lake's compliance file in EPA SDWIS lists no violations, whether health-based or monitoring and reporting, for a utility that supplies water to approximately 1,729 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Long Lake Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Long Lake have a median household income of $171,333 and about 5,924 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 59% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Long Lake'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
Long Lake (EPA ID: MN1270018) is a community water system in Minnesota that serves approximately 1,729 people from groundwater sources.
This system serves ZIP code 55356 in Long Lake.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | 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
1 of 1 ZIP records with known zones is 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.
- 55356 - Long Lake
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Long Lake (MN1270018) on EPA.gov.
Frequently Asked Questions
Is Long Lake water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Long Lake 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 Long Lake serve?
Long Lake serves approximately 1,729 people across 1 ZIP code in Minnesota.
Where does Long Lake get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Long Lake Water Quality Report, MN. https://zipcheckup.com/water-system/mn1270018/
@misc{zipcheckup-water-system-mn1270018,
author = {{ZipCheckup}},
title = {{Long Lake Water Quality Report, MN}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/mn1270018/}
}