Tap Water Results

Is Maplewood, 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 Saint Paul Regional Water Services. 2 PFAS were detected below the limits.

2 public water systems serve parts of Maplewood. The largest, Saint Paul Regional Water Services, serves 392,529 people. Your water bill names your system.

Largest system

Saint Paul Regional Water Services

392,529 people · Surface water · EPA ID MN1620026

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: 10 ppb at the 90th percentile (Jun 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 1

Full Saint Paul Regional Water Services results

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.

Maplewood homes and lead pipes

51%
of homes built before 1980 (Minnesota 52%, US 50%)
9%
built before 1950 (Minnesota 20%)
28%
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. Saint Paul Regional Water Services's service line inventory lists 17,000 lead lines (as of 2026). Look up your address. How to check your own line.

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

Other water systems serving Maplewood

  • Little Canada Water System
    10,400 people · Purchased surface water · Minnesota · reported ZIPs here
    No PFAS above limits

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Oakdale 4 mi
Saint Paul Regional Water Services
Saint Paul Regional Water ServicesNone above limits10 ppb
Roseville 6 mi
Saint Paul Regional Water Services
Saint Paul Regional Water ServicesNone above limits10 ppb
St. Paul 6 mi
Saint Paul Regional Water Services
Saint Paul Regional Water ServicesNone above limits10 ppb
Shoreview 7 mi
Saint Paul Regional Water Services
Saint Paul Regional Water ServicesNone above limits10 ppb
Woodbury 9 mi
Saint Paul Regional Water Services
Saint Paul Regional Water ServicesNone above limits10 ppb
Fridley 12 mi
Fridley Water System
Fridley Water SystemNone above limits0 ppb
Maplewood ZIP codes (2)
  • 55109
  • 55119

Questions

Is Maplewood tap water safe to drink?

Saint Paul Regional Water Services had 1 health-based violation 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 Maplewood, MN?

2 public water systems serve parts of Maplewood. The largest is Saint Paul Regional Water Services (392,529 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Maplewood tap water have PFAS?

Saint Paul Regional Water Services had 2 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Maplewood homes have lead pipes?

Census estimates put 51% of Maplewood 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. Saint Paul Regional Water Services's service line inventory lists 17,000 lead lines. 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.