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Greenfield, MN Tap Water Quality 2026

Water quality report for Greenfield, MN — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Greenfield's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Greenfield PWSID: MN1270074 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.00 ppb, 7% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

C

Greenfield earns a C for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 1.00 ppb — 7% of the federal action level
PFAS sampled, too few results to judge
3 violations since 2015, 3 health-based
No violations currently open
Greenfield's lead level vs. all Minnesota community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.00 ppb — 7% of the federal action level
✓ Lower lead than 100% of Minnesota utilities
Population Served
264
~97 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
3 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
7% of EPA action level
1.00 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
112.2% of EPA action level
1,458 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 1.00 ppb, 7% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.5 PCI/L 5 pCi/L 2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.6 PCI/L 5 pCi/L 2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.5 PCI/L 5 pCi/L 2018 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

3 violations are on record since 2015, of which 3 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Greenfield
PWSID MN1270074
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 264
Service connections 97
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Greenfield tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.00 ppb, 7% of the action level.
Does Greenfield water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Greenfield? ▼
Greenfield (PWSID MN1270074), one of 2 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-03-12. No significant deficiencies were recorded.

What Should Greenfield Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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