Tap Water Results

Is Chanhassen, MN tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Summary

No federal limits exceeded in EPA data for Chanhassen Water System.

Chanhassen Water System supplies Chanhassen (24,951 people).

Water system

Chanhassen Water System

24,951 people · Groundwater · EPA ID MN1100001

Buys treated water from Shorewood Water System, Chaska Water System.

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 0 ppb at the 90th percentile (Dec 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Across Minnesota, 10 of 197 water systems EPA tested had PFAS above a 2024 federal limit, and 7 systems were above the lead action level in results from the last five years. Minnesota results.

Chanhassen homes and lead pipes

20%
of homes built before 1980 (Minnesota 52%, US 50%)
3%
built before 1950 (Minnesota 20%)
16%
of households rent (Minnesota 28%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Chanhassen city (tables B25034, B25003). Estimates for small places have a margin of error.

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Chaska 4 mi
Chaska Water System
Chaska Water SystemNone above limits6 ppb
Eden Prairie 5 mi
Eden Prairie Water System
Eden Prairie Water SystemNone above limits0 ppb
Shakopee 7 mi
Shakopee Water System
Shakopee Water SystemNone above limits2 ppb
Minnetonka 7 mi
Minnetonka Water System
Minnetonka Water SystemNone above limits0 ppb
Edina 10 mi
Edina Water System
Edina Water SystemNone above limits0 ppb
Prior Lake 11 mi
Prior Lake Water System
Prior Lake Water SystemNone above limits0 ppb
Chanhassen ZIP codes (1)
  • 55317

Questions

Is Chanhassen tap water safe to drink?

Chanhassen Water System has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Chanhassen, MN?

Chanhassen Water System, which serves 24,951 people.

Does Chanhassen tap water have PFAS?

None detected above EPA's reporting limits. Chanhassen Water System had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do Chanhassen homes have lead pipes?

Census estimates put 20% of Chanhassen homes as built before 1980 (Minnesota: 52%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Chanhassen Water System's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.