PWSID
MN1100001
State
Minnesota
City
Chanhassen
Population served
24,951
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Oct 2024). Levels in parts per trillion (ppt).
Lithium
9,700 ppt
limit —
Violations & enforcement
1
Violations on record
0
Unaddressed
0
Health-based
8
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jan 2025. Official EPA record →
Recent enforcement actions
- State action · SFJ Jan 2025
- State action · SOX Dec 2024
- State action · SIA Dec 1989
- State action · SIA Sep 1989
- State action · SIA Sep 1988
- State action · SOX Sep 1985
- State action · SIA Sep 1985
- State action · SOX Sep 1984
This profile is built from EPA public records for system MN1100001 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.