Rochester

Rochester, MN · ~123,624 people served

Check your exact address → Rochester overview

100

Excellent

PurityRadar safety score

PWSID

MN1550010

State

Minnesota

City

Rochester

Population served

123,624

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

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 Feb 2024). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

3 ppt

limit 10 ppt

Below EPA limit

Lithium

10,800 ppt

limit —

No federal limit

Violations & enforcement

No violations are on record for this system in EPA’s SDWIS/ECHO data.

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Atrazine

2 stations · latest Jun 2024

254 · max 892 ng/L · 17

Copper

1 station · latest Aug 2023

77.6 · max 77.6 ug/L · 1

Manganese

1 station · latest Jul 2022

11.4 · max 11.4 ug/L · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system MN1550010 — 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.