Water Quality in 54301 — Green Bay, WI
EPA data for GREEN BAY WATERWORKS
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 54301 in Green Bay, Wisconsin is served by GREEN BAY WATERWORKS (EPA ID: WI4050356). This system provides water to approximately 107,369 people from surface water sources.
There are 7 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Lead and Copper Rule | Monitoring | Resolved |
| April 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| December 16, 2023 | Contaminant 0700 | Health-based | Resolved |
| December 16, 2023 | Contaminant 0700 | Health-based | Resolved |
| December 16, 2023 | Contaminant 0700 | Health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 0700 | Other | 3 | Yes |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Stage 2 DBP Rule | Treatment Technique | 1 | Yes |
| Lead and Copper Rule | Treatment Technique | 1 | No |
| Consumer Confidence Report Rule | Reporting | 1 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| GREEN BAY WATERWORKS | WI4050356 | 107,369 | Surface water |
| HOWARD WATERWORKS | WI4050468 | 21,133 | Surface water |
| ASHWAUBENON WATERWORKS | WI4050456 | 17,730 | Surface water |
| BELLEVUE WATERWORKS | WI4050459 | 16,715 | Surface water |
| ALLOUEZ WATERWORKS | WI4050455 | 14,156 | Surface water |
What You Can Do
- Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
- Consider a home water test — Independent testing can reveal issues in your specific plumbing
- Install a certified water filter — NSF-certified filters can address specific contaminants
- Contact your water provider — Ask about current treatment and any ongoing remediation
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Wisconsin
- 53001 (Adell) — 2 violations
- 53002 (Allenton)
- 53004 (Belgium) — 2 violations
- 53005 (Brookfield) — 22 violations
- 53006 (Brownsville) — 4 violations
- 53007 (Butler) — 5 violations
- 53010 (Campbellsport) — 26 violations
- 53011 (Cascade)
- 53012 (Cedarburg)
- 53013 (Cedar Grove)
- 53014 (Chilton) — 4 violations
- 53015 (Cleveland) — 2 violations
- 53016 (Clyman) — 3 violations
- 53017 (Colgate)
- 53018 (Delafield) — 21 violations
- 53019 (Eden)
- 53020 (Elkhart Lake)
- 53051 (Menomonee Falls) — 1 violation
- 53061 (New Holstein) — 4 violations
- 53081 (Sheboygan) — 10 violations
Nearby Water Quality Reports
- 54911 (Appleton) — 23 mi — 7 violations
- 54956 (Neenah) — 31 mi — 4 violations
- 54220 (Manitowoc) — 31 mi
- 53014 (Chilton) — 33 mi — 4 violations
- 53061 (New Holstein) — 37 mi — 4 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for GREEN BAY WATERWORKS (WI4050356) on EPA.gov.
Frequently Asked Questions
Is the tap water in 54301 safe to drink?
Green Bay’s water system has recorded 4 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
Where does 54301’s water come from?
The primary water source for this area is surface water. GREEN BAY WATERWORKS serves approximately 107,369 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 54301 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 54301. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 54301?
Radon zone data is not available for ZIP code 54301. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.