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Public Water System
LONG LAKE COLONY
PWSID SD4602051 · South Dakota · 100 people served
A
ExcellentLONG LAKE COLONY is an EPA-regulated public water system in South Dakota (PWSID SD4602051). It serves an estimated 100 residents — a rural community of customers — across 1 community across 2 ZIP codes.
LONG LAKE COLONY has maintained full EPA Safe Drinking Water Act compliance over the most recent five-year reporting window. No health-based Maximum Contaminant Level (MCL) exceedances are on record. The grade of A reflects this clean compliance history.
Service Area
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Centered on the averaged ZIP-code centroid of 2 ZIPs served.
Population
100
Cities
1
ZIPs
2
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for LONG LAKE COLONY over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
LONG LAKE COLONY's water systems have met EPA health-based Maximum Contaminant Level (MCL) requirements throughout the EPA reporting window. This does not mean zero detection of regulated contaminants — it means all measured concentrations remained below their federal action levels.
Cities Served by LONG LAKE COLONY
ZIP Codes Served
About this system
EPA records this system as PWSID SD4602051. Data reflects the most recent EPA SDWIS publication as of 2026-05-18. Public Water System Identifiers (PWSIDs) are assigned by the EPA's Safe Drinking Water Act program to track every regulated water utility in the United States. The first two letters typically indicate the state primacy agency. For real-time water quality information, contact LONG LAKE COLONY directly or review their annual Consumer Confidence Report (CCR).
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