PWSID
WI4050356
State
Wisconsin
City
GREEN BAY
Population served
107,369
Primary source
Surface water
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
No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.
Violations & enforcement
6
Violations on record
0
Unaddressed
0
Health-based
21
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Nov 2017. Official EPA record →
Recent enforcement actions
- State action · SOX Nov 2017
- State action · SOX Nov 2017
- State action · SOX Nov 2017
- State action · SOX Nov 2017
- State action · SIF Jun 2017
- State action · SIF Jun 2017
- State action · SIF Jun 2017
- State action · SIF Jun 2017
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.
Nitrate
1 station · latest Aug 2023
Fluoride
1 station · latest Feb 2020
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 WI4050356 — 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.