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PUBLIC WATER SYSTEM REPORT
Is LAKE ARROWHEAD CMPGD W Water Safe to Drink in 2026?
Wisconsin · PWSID WI4390007 · Ground water
Population served
25
Cities served
MONTELLO
State / jurisdiction
Wisconsin (WI)
PWSID
WI4390007
A+
TAP WATER GRADE
Excellent
Model score 88/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
No major violations flagged in the latest federal quarterly snapshot
CONTAMINANTS — EPA UCMR5 MONITORING
No UCMR5 PFAS detects on file for this PWS in our bundled national dataset — the system may be smaller than UCMR5 thresholds, had non-detects, or results are not yet linked to this ID. Your retailer Annual Water Quality Report lists other regulated contaminants (chlorine, DBPs, nitrates, etc.).
Official Consumer Confidence Report (CCR)
📋 The official 2026 CCR for LAKE ARROWHEAD CMPGD W has not yet been published on WaterCheckup.
Are you the water operator for LAKE ARROWHEAD CMPGD W? Publish your official CCR here for free — your customers are already finding this page.
Residents: Your public water system is required by EPA to publish an annual CCR by July 1st each year. Contact LAKE ARROWHEAD CMPGD Wdirectly to request a copy, or check the EPA's national CCR portal at cfpub.epa.gov/ccr.
VIOLATIONS HISTORY (FEDERAL SNAPSHOT)
EPA’s national SDWA quarterly files associate 0 violation-related records with this system in the same reporting quarter as the public water system snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.
WHY THIS FOR LAKE ARROWHEAD CMPGD W · Chosen for LAKE ARROWHEAD CMPGD W because groundwater supplies can carry nitrates, arsenic, and localized contamination. RO is the strongest barrier for sensitive households.
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